/* =========================================================================
   OTVista design system
   Palette: ink navy for structure, signal teal for visibility, cool paper
   neutrals. Amber is reserved for risk/attention states only.
   ========================================================================= */

@font-face { font-family: "Inter"; src: url("/fonts/inter-400.woff") format("woff"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("/fonts/inter-600.woff") format("woff"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter Display"; src: url("/fonts/inter-display-600.woff") format("woff"); font-weight: 600; font-style: normal; font-display: swap; }

:root {
  --ink: #0f2233;
  --navy: #17324d;
  --navy-2: #1f4263;
  --steel: #4a6276;
  --muted: #4b6073;
  --line: #c8d4df;
  --line-soft: #d6e0e9;
  --paper: #d9e3ed;      /* alternate light band */
  --surface: #e3eaf2;    /* page background: soft mist instead of pure white */
  --card: #f1f5f9;       /* raised cards on light bands */
  --white: #ffffff;
  --teal: #0b6e6d;
  --teal-dark: #0a6463;
  --teal-bright: #3cc4be;
  --teal-wash: #e3f3f2;
  --amber: #8a5509;
  --amber-wash: #fbf1e1;
  --red: #b3261e;
  --night: #06111f;
  --night-2: #0b1d36;
  --night-3: #12294a;
  --cyan: #2ee6d6;
  --cyan-ink: #032a2c;
  --glass: rgba(255,255,255,.04);
  --glass-line: rgba(255,255,255,.12);
  --red-wash: #fbeceb;
  --green: #1e7a46;

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Inter Display", "Inter", system-ui, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* Type scale (major third) */
  --t-xs: 0.8125rem;
  --t-sm: 0.9375rem;
  --t-base: 1.0625rem;
  --t-md: 1.25rem;
  --t-lg: 1.5625rem;
  --t-xl: clamp(1.75rem, 1.2rem + 1.8vw, 2.4rem);
  --t-2xl: clamp(2.1rem, 1.3rem + 3vw, 3.4rem);

  --wrap: 1180px;
  --gutter: clamp(1rem, 4vw, 2rem);
  --space-section: clamp(3.5rem, 7vw, 6.5rem);
  --radius-s: 4px;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(15, 34, 51, .06), 0 6px 20px -8px rgba(15, 34, 51, .18);
  --focus: 0 0 0 3px var(--white), 0 0 0 5px var(--teal);
}

/* ------------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 6rem; }
body {
  margin: 0; font-family: var(--font); font-size: var(--t-base); line-height: 1.62;
  color: var(--ink); background: var(--surface);
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--teal-dark); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--ink); }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 2px; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -0.018em; margin: 0 0 .6em; color: var(--ink); }
h1 { font-size: var(--t-2xl); letter-spacing: -0.028em; line-height: 1.06; }
h2 { font-size: var(--t-xl); }
h3 { font-size: var(--t-md); letter-spacing: -0.01em; line-height: 1.3; }
h4 { font-size: var(--t-base); font-family: var(--font); }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: .35em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
table { border-collapse: collapse; width: 100%; font-size: var(--t-sm); }
th, td { text-align: left; padding: .7rem .9rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--navy); background: var(--paper); }
blockquote { margin: 1.5rem 0; padding: 1rem 1.25rem; border-left: 3px solid var(--teal); background: var(--paper); color: var(--navy); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: var(--ink); color: var(--white); padding: .7rem 1rem; border-radius: var(--radius-s); }
.skip-link:focus { top: 1rem; color: var(--white); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.measure { max-width: 68ch; }
.lede { font-size: var(--t-md); line-height: 1.55; color: var(--steel); max-width: 62ch; }
.muted { color: var(--muted); }
.small { font-size: var(--t-sm); }

/* ------------------------------------------------------------------ buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5rem; justify-content: center;
  font: 600 var(--t-sm)/1 var(--font); padding: .9rem 1.25rem; min-height: 44px;
  border-radius: var(--radius-s); border: 1px solid transparent; cursor: pointer;
  text-decoration: none; transition: background-color .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--teal); color: var(--white); }
.btn-primary:hover { background: var(--teal-dark); color: var(--white); }
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: var(--navy-2); color: var(--white); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.on-dark .btn-ghost { color: var(--white); border-color: rgba(255,255,255,.35); }
.on-dark .btn-ghost:hover { border-color: var(--white); color: var(--white); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .6; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }
.text-link { font-weight: 600; text-decoration: none; display: inline-flex; gap: .35rem; align-items: center; }
.text-link:hover { text-decoration: underline; }
.text-link svg { width: 1em; height: 1em; transition: transform .15s; }
.text-link:hover svg { transform: translateX(2px); }

/* ------------------------------------------------------------------ header (dark bar) */
.site-header { position: sticky; top: 0; z-index: 50; background-color: var(--night-2);
  background-image: repeating-linear-gradient(115deg, transparent 0 46px, rgba(255,255,255,.035) 46px 47px);
  border-bottom: 1px solid rgba(255,255,255,.08); color: var(--white); }
.header-inner { display: flex; align-items: center; gap: 1.25rem; height: 72px; max-width: 1320px; }
.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--ink); flex-shrink: 0; }
.site-header .brand, .site-footer .brand { color: var(--white); }
.brand svg { width: 34px; height: 34px; }
.brand-word { font: 600 1.35rem/1 var(--font-display); letter-spacing: -0.02em; }
.brand-word b { font-weight: 600; color: var(--cyan); }
.primary-nav { margin-left: auto; }
.nav-list { list-style: none; display: flex; align-items: center; gap: 0; margin: 0; padding: 0; }
.nav-list > li { margin: 0; position: relative; }
.nav-link, .nav-toggle {
  display: inline-flex; align-items: center; gap: .35rem; padding: 0 .7rem; height: 72px;
  font: 600 .95rem/1 var(--font); color: #f2f6fa; text-decoration: none;
  background: none; border: 0; cursor: pointer; position: relative;
}
.nav-link::after, .nav-toggle::after { content: ""; position: absolute; left: .55rem; right: .55rem; bottom: 12px; height: 3px; border-radius: 2px; background: var(--cyan); transform: scaleX(0); transition: transform .18s; }
.nav-link:hover, .nav-toggle:hover { color: var(--white); }
.nav-link:hover::after, .nav-toggle:hover::after, .nav-toggle[aria-expanded="true"]::after { transform: scaleX(.5); }
.nav-link[aria-current="page"]::after, .nav-toggle.is-current::after { transform: scaleX(1); }
.nav-toggle svg { width: .85em; height: .85em; stroke-width: 2.4; transition: transform .15s; }
.nav-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-panel {
  position: absolute; top: calc(100% - 6px); left: -.5rem; min-width: 320px; z-index: 60;
  background: #0e2442; border: 1px solid rgba(255,255,255,.12); border-radius: 10px;
  box-shadow: 0 24px 60px -20px rgba(0,0,0,.6); padding: .6rem;
}
.nav-panel[hidden] { display: none; }
.nav-panel ul { list-style: none; margin: 0; padding: 0; }
.nav-panel li { margin: 0; }
.nav-panel a { display: block; padding: .55rem .75rem; border-radius: 6px; color: #dbe6f0; text-decoration: none; font-size: var(--t-sm); line-height: 1.35; }
.nav-panel a:hover, .nav-panel a:focus-visible { background: rgba(46,230,214,.1); color: var(--white); }
.nav-panel .panel-overview { font-weight: 600; color: var(--cyan); border-bottom: 1px solid rgba(255,255,255,.1); border-radius: 6px 6px 0 0; margin-bottom: .3rem; }
.nav-panel .panel-label { font-size: var(--t-xs); color: #8fa6bd; padding: .6rem .75rem .2rem; }
.nav-panel.wide { min-width: 640px; }
.nav-panel.wide ul.cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 .25rem; }
.nav-panel.mega { min-width: 760px; left: -4rem; }
.nav-panel.mega ul.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .1rem .25rem; }
.nav-panel.mega a { display: grid; grid-template-columns: 1.6rem 1fr; gap: .55rem; align-items: start; }
.nav-panel.mega a .ico { width: 1.25rem; height: 1.25rem; color: var(--cyan); margin-top: .05rem; }
.nav-panel.mega a small { display: block; color: #8fa6bd; font-size: .78rem; margin-top: .15rem; }
.header-tools { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.search-button { background: none; border: 0; color: var(--white); width: 44px; height: 44px; display: inline-grid; place-items: center; cursor: pointer; border-radius: 8px; }
.search-button:hover { background: rgba(255,255,255,.08); }
.search-button svg { width: 22px; height: 22px; stroke-width: 2.2; }
.btn-demo { background: var(--cyan); color: var(--cyan-ink); font-weight: 700; }
.btn-demo:hover { background: #7ff3e9; color: var(--cyan-ink); }
.menu-button { display: none; background: none; border: 1px solid rgba(255,255,255,.25); border-radius: 8px; width: 44px; height: 44px; align-items: center; justify-content: center; cursor: pointer; color: var(--white); }
.menu-button svg { width: 22px; height: 22px; }

@media (max-width: 1240px) {
  .menu-button { display: inline-flex; }
  .header-tools .header-cta { display: none; }
  .primary-nav { position: fixed; inset: 72px 0 0 0; background: var(--night-2); overflow-y: auto; padding: 1rem var(--gutter) 2rem; border-top: 1px solid rgba(255,255,255,.1); margin: 0; }
  .primary-nav:not(.is-open) { display: none; }
  .nav-list { flex-direction: column; align-items: stretch; }
  .nav-list > li { border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav-link, .nav-toggle { width: 100%; justify-content: space-between; padding: 1rem .25rem; height: auto; font-size: var(--t-base); }
  .nav-link::after, .nav-toggle::after { display: none; }
  .nav-link[aria-current="page"] { color: var(--cyan); }
  .nav-panel, .nav-panel.wide, .nav-panel.mega { position: static; box-shadow: none; border: 0; min-width: 0; padding: 0 0 .75rem; background: transparent; }
  .nav-panel.wide ul.cols, .nav-panel.mega ul.cols { grid-template-columns: 1fr; }
  .nav-mobile-cta { display: block !important; margin-top: 1.25rem; }
  .nav-mobile-cta .btn { width: 100%; }
  body.nav-open { overflow: hidden; }
}
.nav-mobile-cta { display: none; }

/* Search dialog */
.search-dialog { border: 0; padding: 0; width: min(680px, calc(100vw - 2rem)); border-radius: 14px; background: var(--card); color: var(--ink); box-shadow: 0 30px 80px -20px rgba(4,16,32,.6); margin-top: 10vh; }
.search-dialog::backdrop { background: rgba(4,14,28,.72); backdrop-filter: blur(3px); }
.search-head { display: flex; align-items: center; gap: .75rem; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line); }
.search-head svg { width: 20px; height: 20px; color: var(--steel); flex-shrink: 0; }
.search-head input { flex: 1; border: 0; font: 400 1.1rem var(--font); color: var(--ink); background: transparent; min-width: 0; }
.search-head input:focus { outline: none; }
.search-close { background: var(--paper); border: 1px solid var(--line); border-radius: 6px; font: 600 .75rem var(--font); padding: .35rem .55rem; cursor: pointer; color: var(--steel); }
.search-results { list-style: none; margin: 0; padding: .5rem; max-height: 60vh; overflow-y: auto; }
.search-results li { margin: 0; }
.search-results a { display: block; padding: .7rem .85rem; border-radius: 8px; text-decoration: none; color: var(--ink); }
.search-results a:hover, .search-results a:focus-visible, .search-results a.is-active { background: var(--teal-wash); }
.search-results strong { display: block; font-weight: 600; }
.search-results span { display: block; font-size: var(--t-sm); color: var(--steel); }
.search-results em { font-style: normal; font-size: var(--t-xs); color: var(--teal-dark); font-weight: 600; }
.search-empty { padding: 1.25rem; color: var(--steel); font-size: var(--t-sm); margin: 0; }

/* ------------------------------------------------------------------ sections */
.section { padding: var(--space-section) 0; }
.section-paper { background: var(--paper); }
.section-dark { background: var(--ink); color: #d7e1ea; }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-dark a:not(.btn) { color: var(--teal-bright); }
.section-head { max-width: 760px; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head p { color: var(--steel); font-size: var(--t-md); line-height: 1.55; }
.section-dark .section-head p { color: #b7c6d3; }
.section-foot { margin-top: 2.5rem; }
.kicker { display: inline-flex; align-items: center; gap: .5rem; font-size: var(--t-sm); font-weight: 600; color: var(--teal-dark); margin-bottom: 1rem; }
.kicker::before { content: ""; width: 1.5rem; height: 2px; background: var(--teal); }
.section-dark .kicker { color: var(--teal-bright); }
.section-dark .kicker::before { background: var(--teal-bright); }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2rem, 5vw, 4.5rem); }
.grid-2-wide { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
@media (max-width: 860px) { .grid-2, .grid-2-wide { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ hero */
.hero { padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(3rem, 6vw, 5rem); background:
  linear-gradient(var(--white), var(--white)) padding-box; border-bottom: 1px solid var(--line-soft); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.hero h1 { max-width: 15ch; }
.hero .lede { margin-bottom: 2rem; }
.hero-support { margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: var(--t-sm); max-width: 54ch; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } .hero h1 { max-width: 20ch; } }

/* Signature diagram: layered OT reference model with a visibility lens */
.zone-diagram { width: 100%; height: auto; color: var(--ink); }
.zone-diagram .band { fill: var(--paper); stroke: var(--line); }
.zone-diagram .band-dmz { fill: #eaf1f5; }
.zone-diagram .band-label { font: 600 11.5px var(--font); fill: var(--navy); paint-order: stroke; stroke: var(--paper); stroke-width: 5px; stroke-linejoin: round; }
.zone-diagram .band-level { font: 500 10px var(--mono); fill: var(--muted); }
.zone-diagram .node { fill: var(--white); stroke: var(--navy); stroke-width: 1.3; }
.zone-diagram .node-ink { fill: var(--navy); }
.zone-diagram .wire { stroke: var(--steel); stroke-width: 1.2; fill: none; }
.zone-diagram .conduit { stroke: var(--teal); stroke-width: 2; fill: none; }
.zone-diagram .fw { fill: var(--white); stroke: var(--teal); stroke-width: 1.6; }
.zone-diagram .lens { fill: rgba(14,124,123,.07); stroke: var(--teal); stroke-width: 2; }
.zone-diagram .lens-tick { stroke: var(--teal); stroke-width: 2.5; fill: none; }
.zone-diagram .lens-tag { fill: var(--white); stroke: var(--teal); stroke-width: 1; }
.zone-diagram .lens-label { font: 600 11px var(--font); fill: var(--teal-dark); }
.zone-diagram .lens-group { animation: lens-scan 2.4s cubic-bezier(.5,0,.2,1) .35s both; }
.zone-diagram .lit { animation: lit .5s ease-out 2.4s both; }
@keyframes lens-scan { 0% { transform: translateY(-186px); opacity: 0; } 15% { opacity: 1; } 100% { transform: translateY(0); opacity: 1; } }
@keyframes lit { from { fill: var(--white); } to { fill: var(--teal-wash); } }
.diagram-caption { font-size: var(--t-xs); color: var(--muted); margin-top: .75rem; }

/* ------------------------------------------------------------------ problem */
.problem-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.problem-list li { display: grid; grid-template-columns: 2.25rem 1fr; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); margin: 0; }
.problem-list h3 { font-size: var(--t-base); font-family: var(--font); margin-bottom: .25rem; }
.problem-list p { margin: 0; color: var(--steel); font-size: var(--t-sm); }
.problem-list .ico { width: 2.25rem; height: 2.25rem; color: var(--teal); }

/* ------------------------------------------------------------------ service index (not cards) */
.svc-index { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: clamp(2rem, 5vw, 4rem); }
.svc-index > li { margin: 0; border-top: 1px solid var(--line); }
.svc-index a { display: grid; grid-template-columns: 2.5rem 1fr; gap: 1rem; padding: 1.5rem 0; text-decoration: none; color: inherit; }
.svc-index .ico { width: 2.5rem; height: 2.5rem; color: var(--navy); padding: .45rem; border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--card); }
.svc-index h3 { font-size: var(--t-md); margin-bottom: .35rem; display: flex; align-items: baseline; gap: .4rem; }
.svc-index h3 svg { width: .8em; height: .8em; color: var(--teal); flex-shrink: 0; transition: transform .15s; }
.svc-index p { margin: 0; color: var(--steel); font-size: var(--t-sm); }
.svc-index a:hover h3 { color: var(--teal-dark); }
.svc-index a:hover h3 svg { transform: translateX(3px); }
@media (max-width: 760px) { .svc-index { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ process (true sequence) */
.process { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); counter-reset: step; position: relative; }
.process::before { content: ""; position: absolute; top: 1.15rem; left: 1.15rem; right: calc(20% - 1.15rem); height: 2px; background: var(--line); }
.process li { position: relative; margin: 0; padding-right: 1.25rem; counter-increment: step; }
.process .num { position: relative; display: inline-grid; place-items: center; width: 2.3rem; height: 2.3rem; border-radius: 50%; background: var(--card); border: 2px solid var(--teal); color: var(--teal-dark); font: 600 var(--t-sm)/1 var(--font); margin-bottom: 1rem; }
.process h3 { font-size: var(--t-md); margin-bottom: .35rem; }
.process p { font-size: var(--t-sm); color: var(--steel); margin: 0; }
@media (max-width: 900px) {
  .process { grid-template-columns: 1fr; gap: 1.5rem; }
  .process::before { top: 0; bottom: 0; left: 1.1rem; right: auto; width: 2px; height: auto; }
  .process li { display: grid; grid-template-columns: 2.3rem 1fr; column-gap: 1rem; padding: 0; }
  .process .num { grid-row: span 2; margin: 0; }
}
.note { font-size: var(--t-sm); color: var(--muted); margin-top: 1.75rem; }

/* ------------------------------------------------------------------ platform vision (dark) */
.vision-label { display: inline-block; font: 600 var(--t-xs)/1 var(--font); letter-spacing: .02em; color: var(--ink); background: var(--teal-bright); padding: .4rem .6rem; border-radius: 3px; margin-bottom: 1rem; }
.vision-label-light { background: var(--teal-wash); color: var(--teal-dark); }
.theme-list { list-style: none; padding: 0; margin: 1.5rem 0 2rem; display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .75rem 1.5rem; }
.theme-list li { margin: 0; display: flex; gap: .6rem; align-items: flex-start; color: var(--white); font-weight: 500; }
.theme-list svg { width: 1.15rem; height: 1.15rem; color: var(--teal-bright); flex-shrink: 0; margin-top: .2rem; }
@media (max-width: 560px) { .theme-list { grid-template-columns: 1fr; } }
.flow-diagram { width: 100%; height: auto; }
.flow-diagram .f-box { fill: rgba(255,255,255,.04); stroke: rgba(255,255,255,.28); }
.flow-diagram .f-box-hi { stroke: var(--teal-bright); }
.flow-diagram .f-text { font: 600 13.5px var(--font); fill: #eaf1f6; }
.flow-diagram .f-sub { font: 400 11px var(--font); fill: #9fb2c3; }
.flow-diagram .f-line { stroke: var(--teal-bright); stroke-width: 1.4; fill: none; }
.flow-diagram .f-dash { stroke: rgba(255,255,255,.3); stroke-width: 1.2; stroke-dasharray: 3 4; fill: none; }
.flow-diagram.light .f-box { fill: var(--white); stroke: var(--line); }
.flow-diagram.light .f-box-hi { stroke: var(--teal); }
.flow-diagram.light .f-text { fill: var(--ink); }
.flow-diagram.light .f-sub { fill: var(--muted); }
.flow-diagram.light .f-line { stroke: var(--teal); }
.flow-diagram.light .f-dash { stroke: var(--line); }
.illustrative { font-size: var(--t-xs); color: #9fb2c3; margin-top: .75rem; display: flex; gap: .4rem; align-items: center; }
.illustrative.light { color: var(--muted); }
.illustrative svg { width: 1em; height: 1em; }

/* ------------------------------------------------------------------ industry rows */
.ind-rows { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.ind-rows li { margin: 0; border-bottom: 1px solid var(--line); }
.ind-rows a { display: grid; grid-template-columns: 2.75rem minmax(0, 1fr) minmax(0, 1.6fr) auto; gap: 1.5rem; align-items: center; padding: 1.35rem .25rem; text-decoration: none; color: inherit; }
.ind-rows .ico { width: 2.75rem; height: 2.75rem; color: var(--teal); }
.ind-rows h3 { margin: 0; font-size: var(--t-md); }
.ind-rows p { margin: 0; color: var(--steel); font-size: var(--t-sm); }
.ind-rows .go { width: 1.25rem; height: 1.25rem; color: var(--teal); transition: transform .15s; }
.ind-rows a:hover h3 { color: var(--teal-dark); }
.ind-rows a:hover .go { transform: translateX(3px); }
@media (max-width: 760px) { .ind-rows a { grid-template-columns: 2.5rem 1fr; gap: .4rem 1rem; } .ind-rows p { grid-column: 2; } .ind-rows .go { display: none; } .ind-rows .ico { grid-row: span 2; } }

/* ------------------------------------------------------------------ principles */
.principles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; }
.principles > div { border-top: 3px solid var(--ink); padding-top: 1.25rem; }
.principles h3 { font-size: var(--t-md); }
.principles p { color: var(--steel); font-size: var(--t-sm); margin: 0; }
@media (max-width: 960px) { .principles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .principles { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ resource list */
.res-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(2rem, 5vw, 4rem); }
.res-list li { margin: 0; border-top: 1px solid var(--line); }
.res-list a { display: block; padding: 1.5rem 0; text-decoration: none; color: inherit; }
.res-list .meta { font-size: var(--t-xs); color: var(--muted); margin-bottom: .4rem; }
.res-list h3 { margin: 0 0 .4rem; }
.res-list p { margin: 0; color: var(--steel); font-size: var(--t-sm); }
.res-list a:hover h3 { color: var(--teal-dark); text-decoration: underline; text-decoration-thickness: 1px; }
@media (max-width: 760px) { .res-list { grid-template-columns: 1fr; } }

/* Tool feature (homepage + resources) */
.tool-feature { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: center; padding: clamp(1.5rem, 3vw, 2.25rem); border: 1px solid var(--line); border-left: 4px solid var(--teal); border-radius: var(--radius); background: var(--card); margin-top: 2.5rem; }
.tool-feature h3 { margin-bottom: .35rem; }
.tool-feature p { margin: 0; color: var(--steel); }
@media (max-width: 700px) { .tool-feature { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ CTA band */
.cta-band { background: var(--navy); color: #d7e1ea; padding: clamp(3rem, 6vw, 4.5rem) 0; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; right: -60px; top: 50%; width: 360px; height: 360px; transform: translateY(-50%); border: 1px solid rgba(60,196,190,.25); border-radius: 50%; box-shadow: 0 0 0 40px rgba(60,196,190,.06), 0 0 0 80px rgba(60,196,190,.04); pointer-events: none; }
.cta-band .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: center; }
.cta-band h2 { color: var(--white); margin-bottom: .5rem; }
.cta-band p { margin: 0; max-width: 60ch; color: #c3d1dd; }
@media (max-width: 760px) { .cta-band .wrap { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ inner page header ("title block") */
.page-head { padding: clamp(2rem, 4vw, 3rem) 0 clamp(2.5rem, 5vw, 3.75rem); border-bottom: 1px solid var(--line); background: var(--paper); }
.page-head-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 3rem; align-items: end; }
.page-head h1 { font-size: clamp(2rem, 1.3rem + 2.4vw, 3rem); max-width: 22ch; }
.page-head .lede { margin: 0; }
.title-block { border: 1px solid var(--navy); font-size: var(--t-xs); background: var(--card); align-self: end; }
.title-block div { display: grid; grid-template-columns: 1fr auto; gap: 1rem; padding: .5rem .75rem; border-bottom: 1px solid var(--line); }
.title-block div:last-child { border-bottom: 0; }
.title-block dt { color: var(--muted); }
.title-block dd { margin: 0; font-weight: 600; color: var(--ink); text-align: right; }
.title-block .tb-head { background: var(--navy); color: var(--white); font-weight: 600; border-bottom: 0; grid-template-columns: 1fr; }
.title-block .tb-head dd { color: var(--white); text-align: left; }
@media (max-width: 860px) { .page-head-grid { grid-template-columns: 1fr; gap: 1.5rem; } .title-block { max-width: 360px; } }

.crumbs { font-size: var(--t-xs); margin-bottom: 1.5rem; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .35rem; padding: 0; margin: 0; }
.crumbs li { margin: 0; display: flex; gap: .35rem; align-items: center; color: var(--muted); }
.crumbs li + li::before { content: "/"; color: var(--line); }
.crumbs a { color: var(--steel); text-decoration: none; }
.crumbs a:hover { color: var(--teal-dark); text-decoration: underline; }

/* ------------------------------------------------------------------ content blocks */
.answer-box { border-left: 3px solid var(--teal); padding: 1rem 1.25rem; background: var(--teal-wash); margin: 0 0 2rem; }
.answer-box h2 { font-size: var(--t-base); font-family: var(--font); margin-bottom: .35rem; color: var(--teal-dark); }
.answer-box p { margin: 0; }
.scope-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2.5rem; }
.scope-list li { margin: 0; padding: 1rem 0; border-top: 1px solid var(--line); }
.scope-list h3 { font-size: var(--t-base); font-family: var(--font); margin-bottom: .2rem; }
.scope-list p { margin: 0; font-size: var(--t-sm); color: var(--steel); }
@media (max-width: 760px) { .scope-list { grid-template-columns: 1fr; } }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { display: grid; grid-template-columns: 1.25rem 1fr; gap: .7rem; margin-bottom: .75rem; }
.check-list svg { width: 1.2rem; height: 1.2rem; color: var(--teal); margin-top: .2rem; }
.deliv { list-style: none; margin: 0; padding: 0; counter-reset: d; }
.deliv li { display: grid; grid-template-columns: auto 1fr; gap: .25rem 1rem; padding: .9rem 0; border-top: 1px solid var(--line); margin: 0; }
.deliv strong { font-weight: 600; }
.deliv span { grid-column: 1 / -1; color: var(--steel); font-size: var(--t-sm); }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding: 0 0 1.5rem 3.25rem; margin: 0; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: -.1rem; width: 2.1rem; height: 2.1rem; display: grid; place-items: center; border: 2px solid var(--teal); border-radius: 50%; font: 600 var(--t-sm)/1 var(--font); color: var(--teal-dark); background: var(--card); }
.steps li::after { content: ""; position: absolute; left: 1.02rem; top: 2.1rem; bottom: .2rem; width: 2px; background: var(--line); }
.steps li:last-child::after { display: none; }
.steps h3 { font-size: var(--t-base); font-family: var(--font); margin-bottom: .2rem; }
.steps p { margin: 0; color: var(--steel); font-size: var(--t-sm); }
.limits { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; background: var(--card); }
.limits h2 { font-size: var(--t-md); display: flex; gap: .5rem; align-items: center; }
.limits h2 svg { width: 1.2rem; height: 1.2rem; color: var(--amber); }
.limits ul { margin: 0; color: var(--steel); font-size: var(--t-sm); }
.inputs { background: var(--paper); border-radius: var(--radius); padding: 1.5rem; }
.inputs h2 { font-size: var(--t-md); }
.inputs ul { margin: 0; font-size: var(--t-sm); color: var(--steel); }
.stack > * + * { margin-top: 1.5rem; }

.related { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem; }
.related h2 { font-size: var(--t-md); }
.related ul { list-style: none; padding: 0; margin: 0; }
.related li { margin: 0; border-top: 1px solid var(--line); }
.related a { display: flex; justify-content: space-between; gap: 1rem; padding: .85rem 0; text-decoration: none; font-weight: 500; }
.related a svg { width: 1rem; height: 1rem; flex-shrink: 0; margin-top: .3rem; }
@media (max-width: 760px) { .related { grid-template-columns: 1fr; } }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 1.1rem 2.5rem 1.1rem 0; position: relative; font: 600 var(--t-base)/1.4 var(--font); color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: .25rem; top: 1.35rem; width: .6rem; height: .6rem; border-right: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(45deg); transition: transform .15s; }
.faq details[open] summary::after { transform: rotate(225deg); top: 1.6rem; }
.faq summary:hover { color: var(--teal-dark); }
.faq .faq-a { padding: 0 0 1.25rem; color: var(--steel); max-width: 70ch; }
.faq .faq-a p { margin: 0; }

/* Scenario / example */
.scenario { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); overflow: hidden; }
.scenario-head { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; align-items: center; padding: 1rem 1.5rem; background: var(--paper); border-bottom: 1px solid var(--line); }
.scenario-head h3 { margin: 0; font-size: var(--t-md); }
.tag { display: inline-block; font: 600 var(--t-xs)/1 var(--font); padding: .35rem .55rem; border-radius: 3px; background: var(--amber-wash); color: var(--amber); }
.tag-teal { background: var(--teal-wash); color: var(--teal-dark); }
.scenario-body { padding: 1.5rem; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem; }
.scenario-body h4 { font-size: var(--t-sm); color: var(--muted); font-weight: 600; margin-bottom: .4rem; }
.scenario-body ol { font-size: var(--t-sm); color: var(--steel); }
@media (max-width: 760px) { .scenario-body { grid-template-columns: 1fr; } }

/* Hub cards (used sparingly, only on hub pages) */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; list-style: none; padding: 0; margin: 0; }
.tiles li { margin: 0; }
.tile { display: flex; flex-direction: column; height: 100%; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); text-decoration: none; color: inherit; transition: border-color .15s; }
.tile:hover { border-color: var(--teal); }
.tile .ico { width: 2.25rem; height: 2.25rem; color: var(--teal); margin-bottom: 1rem; }
.tile h3 { font-size: var(--t-md); margin-bottom: .4rem; }
.tile p { color: var(--steel); font-size: var(--t-sm); margin: 0 0 1rem; flex: 1; }
.tile .text-link { color: var(--teal-dark); }

.paths { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.paths li { margin: 0; background: var(--card); }
.paths a { display: block; padding: 1.4rem; height: 100%; text-decoration: none; color: inherit; }
.paths strong { display: block; font-family: var(--font-display); font-size: var(--t-md); margin-bottom: .4rem; }
.paths span { color: var(--steel); font-size: var(--t-sm); }
.paths a:hover strong { color: var(--teal-dark); }
@media (max-width: 960px) { .paths { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .paths { grid-template-columns: 1fr; } }

/* Use-case question header */
.question { font-family: var(--font-display); font-size: var(--t-lg); line-height: 1.3; color: var(--navy); border-left: 3px solid var(--teal); padding-left: 1rem; max-width: 34ch; margin: 0 0 1rem; }
.uc-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.uc-list li { margin: 0; border-bottom: 1px solid var(--line); }
.uc-list a { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; gap: 2rem; align-items: center; padding: 1.5rem .25rem; text-decoration: none; color: inherit; }
.uc-list .q { font-family: var(--font-display); font-size: var(--t-md); color: var(--navy); line-height: 1.35; }
.uc-list h3 { margin: 0 0 .25rem; font-size: var(--t-base); font-family: var(--font); color: var(--teal-dark); }
.uc-list p { margin: 0; color: var(--steel); font-size: var(--t-sm); }
.uc-list .go { width: 1.25rem; height: 1.25rem; color: var(--teal); }
.uc-list a:hover .q { color: var(--teal-dark); }
@media (max-width: 760px) { .uc-list a { grid-template-columns: 1fr; gap: .6rem; } .uc-list .go { display: none; } }

/* Process flow (use cases) */
.flow-steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .75rem; counter-reset: f; }
.flow-steps li { margin: 0; counter-increment: f; position: relative; background: var(--card); border: 1px solid var(--line); border-top: 3px solid var(--teal); border-radius: var(--radius-s); padding: 1rem; }
.flow-steps li::before { content: counter(f); display: block; font: 600 var(--t-xs)/1 var(--mono); color: var(--teal-dark); margin-bottom: .5rem; }
.flow-steps h3 { font-size: var(--t-base); font-family: var(--font); margin-bottom: .3rem; }
.flow-steps p { margin: 0; font-size: var(--t-sm); color: var(--steel); }
@media (max-width: 960px) { .flow-steps { grid-template-columns: 1fr; } }

.why-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2.5rem; }
.why-grid div { border-top: 1px solid var(--line); padding: 1rem 0; }
.why-grid h3 { font-size: var(--t-base); font-family: var(--font); margin-bottom: .2rem; }
.why-grid p { font-size: var(--t-sm); color: var(--steel); margin: 0; }
@media (max-width: 600px) { .why-grid { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ article */
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.prose { max-width: 70ch; }
.prose h2 { font-size: var(--t-lg); margin-top: 2.5rem; scroll-margin-top: 5.5rem; }
.prose h3 { margin-top: 1.75rem; }
.prose > p:first-child { font-size: var(--t-md); line-height: 1.55; color: var(--navy); }
.prose table { margin: 1.5rem 0; display: block; overflow-x: auto; }
.prose li { margin-bottom: .5em; }
.toc { position: sticky; top: 6rem; font-size: var(--t-sm); border-left: 1px solid var(--line); padding-left: 1.25rem; }
.toc h2 { font-size: var(--t-sm); font-family: var(--font); color: var(--muted); }
.toc ol { list-style: none; padding: 0; margin: 0; }
.toc li { margin: 0 0 .55rem; }
.toc a { color: var(--steel); text-decoration: none; }
.toc a:hover { color: var(--teal-dark); text-decoration: underline; }
.article-meta { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font-size: var(--t-sm); color: var(--muted); margin-top: 1.25rem; }
.next-step { margin-top: 3rem; padding: 1.75rem; border-radius: var(--radius); background: var(--paper); border: 1px solid var(--line); }
.next-step h2 { margin-top: 0; font-size: var(--t-md); }
@media (max-width: 960px) { .article-layout { grid-template-columns: 1fr; } .toc { position: static; border-left: 0; padding: 1.25rem; background: var(--paper); border-radius: var(--radius); order: -1; } }

/* ------------------------------------------------------------------ forms */
.form-layout { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; }
@media (max-width: 900px) { .form-layout { grid-template-columns: 1fr; } }
.form { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.25rem, 3vw, 2rem); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem 1.25rem; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.field label, .field legend { display: block; font-weight: 600; font-size: var(--t-sm); margin-bottom: .35rem; }
.field .opt { font-weight: 400; color: var(--muted); }
.field .hint { display: block; font-size: var(--t-xs); color: var(--muted); margin-top: .35rem; }
.field input[type=text], .field input[type=email], .field select, .field textarea {
  width: 100%; font: 400 var(--t-base)/1.4 var(--font); color: var(--ink); background: var(--white);
  border: 1px solid #788a9a; border-radius: var(--radius-s); padding: .7rem .8rem; min-height: 46px;
}
.field textarea { min-height: 140px; resize: vertical; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--steel) 50%), linear-gradient(135deg, var(--steel) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.25rem; }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(14,124,123,.25); }
.field [aria-invalid="true"] { border-color: var(--red); }
.field .error { display: block; color: var(--red); font-size: var(--t-sm); margin-top: .35rem; font-weight: 500; }
.field .error:empty { display: none; }
fieldset.field { border: 0; padding: 0; margin: 0; }
.radio-row { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; }
.radio-row label, .consent label { display: flex; gap: .5rem; align-items: flex-start; font-weight: 400; font-size: var(--t-sm); cursor: pointer; }
.radio-row input, .consent input { width: 1.15rem; height: 1.15rem; margin: .15rem 0 0; accent-color: var(--teal); flex-shrink: 0; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; margin-top: 1.5rem; }
.spinner { width: 1rem; height: 1rem; border: 2px solid rgba(255,255,255,.5); border-top-color: var(--white); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.alert { border-radius: var(--radius-s); padding: 1rem 1.25rem; margin-bottom: 1.25rem; font-size: var(--t-sm); }
.alert:empty { display: none; }
.alert-error { background: var(--red-wash); color: #7a1a14; border: 1px solid #efc4c1; }
.alert-success { background: #e8f5ee; color: #14532f; border: 1px solid #b9dfc9; }
.alert h2 { font-size: var(--t-md); color: inherit; margin-bottom: .35rem; }
.alert p:last-child { margin: 0; }
.notice-sensitive { display: grid; grid-template-columns: 1.25rem 1fr; gap: .7rem; font-size: var(--t-sm); background: var(--amber-wash); color: #5c3a06; border-radius: var(--radius-s); padding: .9rem 1rem; }
.notice-sensitive svg { width: 1.2rem; height: 1.2rem; margin-top: .15rem; }
.aside-block + .aside-block { margin-top: 2rem; }
.aside-block h2 { font-size: var(--t-md); }

/* ------------------------------------------------------------------ quick check */
.qc-shell { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
@media (max-width: 900px) { .qc-shell { grid-template-columns: 1fr; } }
.qc-progress { position: sticky; top: 6rem; }
.qc-progress ol { list-style: none; padding: 0; margin: 0; }
.qc-progress li { margin: 0; }
.qc-progress button { width: 100%; display: grid; grid-template-columns: 1.6rem 1fr auto; gap: .6rem; align-items: center; text-align: left; background: none; border: 0; padding: .5rem .25rem; font: 500 var(--t-sm)/1.3 var(--font); color: var(--steel); cursor: pointer; border-radius: var(--radius-s); }
.qc-progress button:hover { background: var(--paper); }
.qc-progress button[aria-current="step"] { color: var(--ink); font-weight: 600; }
.qc-progress .dot { width: 1.6rem; height: 1.6rem; border-radius: 50%; border: 2px solid var(--line); display: grid; place-items: center; font: 600 var(--t-xs)/1 var(--font); }
.qc-progress button[aria-current="step"] .dot { border-color: var(--teal); color: var(--teal-dark); }
.qc-progress .done .dot { background: var(--teal); border-color: var(--teal); color: var(--white); }
.qc-progress .count { font-size: var(--t-xs); color: var(--muted); }
@media (max-width: 900px) { .qc-progress { position: static; } .qc-progress ol { display: flex; overflow-x: auto; gap: .25rem; } .qc-progress button { grid-template-columns: 1.6rem; } .qc-progress .lbl, .qc-progress .count { display: none; } }
.qc-panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.qc-panel-head { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--line); background: var(--paper); border-radius: var(--radius) var(--radius) 0 0; }
.qc-panel-head h2 { margin: 0; font-size: var(--t-lg); }
.qc-panel-head p { margin: .25rem 0 0; font-size: var(--t-sm); color: var(--muted); }
.qc-q { padding: 1.4rem 1.5rem; border-bottom: 1px solid var(--line-soft); border: 0; margin: 0; }
.qc-q + .qc-q { border-top: 1px solid var(--line-soft); }
.qc-q legend { font-weight: 600; font-size: var(--t-base); line-height: 1.45; margin-bottom: .9rem; padding: 0; float: left; width: 100%; }
.qc-q legend + * { clear: both; }
.qc-scale { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .5rem; }
.qc-scale label { position: relative; display: block; cursor: pointer; }
.qc-scale input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.qc-scale span { display: flex; align-items: center; justify-content: center; text-align: center; min-height: 52px; padding: .5rem; border: 1px solid var(--line); border-radius: var(--radius-s); font-size: var(--t-xs); font-weight: 500; line-height: 1.25; color: var(--steel); transition: border-color .12s, background-color .12s; }
.qc-scale label:hover span { border-color: var(--steel); }
.qc-scale input:checked + span { border-color: var(--teal); background: var(--teal-wash); color: var(--teal-dark); font-weight: 600; box-shadow: inset 0 0 0 1px var(--teal); }
.qc-scale input:focus-visible + span { box-shadow: var(--focus); }
.qc-scale .unk input:checked + span { border-color: var(--amber); background: var(--amber-wash); color: var(--amber); box-shadow: inset 0 0 0 1px var(--amber); }
@media (max-width: 640px) { .qc-scale { grid-template-columns: 1fr; } .qc-scale span { justify-content: flex-start; min-height: 44px; text-align: left; } }
.qc-nav { display: flex; justify-content: space-between; gap: 1rem; padding: 1.25rem 1.5rem; border-top: 1px solid var(--line); flex-wrap: wrap; }
.qc-status { font-size: var(--t-sm); color: var(--muted); align-self: center; }
.qc-intro-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; background: var(--card); }

.qc-result-head { display: grid; grid-template-columns: auto 1fr; gap: 2rem; align-items: center; padding: 1.75rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.qc-score { width: 140px; height: 140px; }
.qc-score .track { stroke: var(--line-soft); }
.qc-score .val { stroke: var(--teal); transition: stroke-dashoffset .8s ease-out; }
.qc-score text { font: 600 30px var(--font-display); fill: var(--ink); }
.qc-score .pct { font: 500 12px var(--font); fill: var(--muted); }
@media (max-width: 600px) { .qc-result-head { grid-template-columns: 1fr; } }
.qc-bars { list-style: none; padding: 0; margin: 0; }
.qc-bars li { display: grid; grid-template-columns: minmax(0, 220px) minmax(0, 1fr) 3.5rem; gap: 1rem; align-items: center; padding: .7rem 0; border-bottom: 1px solid var(--line-soft); margin: 0; font-size: var(--t-sm); }
.qc-bar { height: 10px; background: var(--line-soft); border-radius: 5px; overflow: hidden; }
.qc-bar i { display: block; height: 100%; background: var(--teal); border-radius: 5px; }
.qc-bar i.low { background: var(--amber); }
.qc-bars .v { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.qc-bars .unknown { grid-column: 1 / -1; font-size: var(--t-xs); color: var(--amber); margin-top: -.3rem; }
@media (max-width: 600px) { .qc-bars li { grid-template-columns: 1fr 3rem; } .qc-bar { grid-column: 1 / -1; grid-row: 2; } }
.qc-priority { border: 1px solid var(--line); border-left: 4px solid var(--amber); border-radius: var(--radius-s); padding: 1.25rem 1.5rem; margin-bottom: 1rem; background: var(--card); }
.qc-priority h3 { margin-bottom: .25rem; }
.qc-priority .ref { font-size: var(--t-xs); color: var(--muted); margin-bottom: .75rem; }
.qc-priority ul { font-size: var(--t-sm); color: var(--steel); }
.qc-disclaimer { font-size: var(--t-sm); color: var(--muted); border-top: 1px solid var(--line); padding-top: 1rem; margin-top: 2rem; }

/* ------------------------------------------------------------------ footer */
.site-footer { background: var(--ink); color: #a9bccb; font-size: var(--t-sm); padding: clamp(3rem, 6vw, 4.5rem) 0 2rem; }
.site-footer a { color: #d7e1ea; text-decoration: none; }
.site-footer a:hover { color: var(--white); text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(5, minmax(0, 1fr)); gap: 2rem; }
.site-footer h2 a { color: inherit; text-decoration: none; }
.site-footer h2 a:hover { text-decoration: underline; }
.footer-feed { font-size: var(--t-sm); }
@media (max-width: 1200px) { .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .footer-brand { grid-column: 1 / -1; } }
.footer-brand .brand { color: var(--white); margin-bottom: 1rem; }
.footer-brand p { max-width: 34ch; }
.site-footer h2 { font: 600 var(--t-sm)/1.3 var(--font); color: var(--white); margin-bottom: 1rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .55rem; }
.footer-base { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.12); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; font-size: var(--t-xs); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer-brand { grid-column: 1 / -1; } }

/* ------------------------------------------------------------------ misc */
.legal h2 { font-size: var(--t-lg); margin-top: 2.5rem; }
.legal h3 { margin-top: 1.5rem; }
.pending { background: var(--amber-wash); border: 1px solid #ecd3a8; border-radius: var(--radius-s); padding: .9rem 1rem; font-size: var(--t-sm); color: #5c3a06; }
.status-pill { display: inline-flex; align-items: center; gap: .45rem; font: 600 var(--t-xs)/1 var(--font); padding: .45rem .7rem; border-radius: 999px; background: var(--amber-wash); color: var(--amber); }
.status-pill::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; }
.cap-list { list-style: none; padding: 0; margin: 0; counter-reset: c; }
.cap-list li { counter-increment: c; display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1.5rem 0; border-top: 1px solid var(--line); margin: 0; }
.cap-list li::before { content: counter(c); font: 600 var(--t-lg)/1 var(--font-display); color: var(--teal); }
.cap-list h3 { margin-bottom: .3rem; }
.cap-list p { margin: 0; color: var(--steel); }
.status-table td:first-child { font-weight: 600; width: 40%; }
.error-page { padding: clamp(4rem, 10vw, 8rem) 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-delay: 0s !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header, .site-footer, .cta-band, .qc-progress, .qc-nav, .no-print, .skip-link { display: none !important; }
  body { font-size: 11pt; color: #000; }
  .qc-shell { display: block; }
  a { color: #000; }
  .section { padding: 1rem 0; }
}
.svc-index.svc-index-single { grid-template-columns: 1fr; }
.scenario-body.scenario-body-single { grid-template-columns: 1fr; }
.faq-dl { margin: 0; border-top: 1px solid var(--line); }
.faq-dl dt { font-weight: 600; padding-top: 1.1rem; }
.faq-dl dd { margin: .3rem 0 0; padding-bottom: 1.1rem; border-bottom: 1px solid var(--line); color: var(--steel); }
[data-gap] { margin-top: 2.5rem; }

.grid-2.align-center { align-items: center; }

.preview-bar { background: var(--amber-wash); color: #5c3a06; font-size: var(--t-sm); padding: .6rem 0; border-bottom: 1px solid #ecd3a8; }

/* =========================================================================
   v2: futuristic dark surfaces (hero, platform, inner page heads)
   ========================================================================= */
.dark { background: var(--night); color: #c9d6e3; }
.dark h1, .dark h2, .dark h3 { color: var(--white); }
.dark .lede, .dark .section-head p { color: #a9bccd; }
.dark .kicker { color: var(--cyan); }
.dark .kicker::before { background: var(--cyan); }
.dark a:not(.btn) { color: var(--cyan); }
.dark .btn-ghost { color: var(--white); border-color: rgba(255,255,255,.3); }
.dark .btn-ghost:hover { border-color: var(--cyan); color: var(--white); }
.section-night { background: var(--night-2); color: #c9d6e3; position: relative; overflow: hidden; }
.section-night::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(46,230,214,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(46,230,214,.05) 1px, transparent 1px);
  background-size: 56px 56px; mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 75%); }
.section-night > .wrap { position: relative; }

/* Hero */
.hero-v2 { position: relative; overflow: hidden; background: radial-gradient(1200px 600px at 78% 20%, rgba(46,230,214,.16), transparent 60%), radial-gradient(900px 500px at 10% 100%, rgba(40,90,170,.35), transparent 60%), var(--night); color: #c9d6e3; padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3.5rem, 7vw, 5.5rem); }
.hero-v2 canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; pointer-events: none; }
.hero-v2::after { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: repeating-linear-gradient(115deg, transparent 0 90px, rgba(255,255,255,.03) 90px 91px); }
.hero-v2 .wrap { position: relative; z-index: 1; max-width: 1320px; }
.hero-v2-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.hero-v2 h1 { color: var(--white); font-size: clamp(2.4rem, 1.4rem + 3.6vw, 4.1rem); line-height: 1.02; letter-spacing: -0.035em; max-width: 14ch; margin-bottom: 1.25rem; }
.hero-v2 h1 .glow { color: transparent; background: linear-gradient(90deg, #ffffff, var(--cyan) 70%); -webkit-background-clip: text; background-clip: text; }
.hero-v2 .lede { color: #b5c6d6; margin-bottom: 2rem; max-width: 58ch; }
.status-chip { display: inline-flex; align-items: center; gap: .5rem; font: 600 var(--t-xs)/1 var(--font); color: var(--cyan); border: 1px solid rgba(46,230,214,.4); background: rgba(46,230,214,.08); padding: .5rem .8rem; border-radius: 999px; margin-bottom: 1.5rem; }
.status-chip i { width: .5rem; height: .5rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(46,230,214,.18); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(46,230,214,0); } }
.hero-support-dark { margin-top: 2rem; color: #8ea4b9; font-size: var(--t-sm); max-width: 54ch; }
.btn-lg { padding: 1.05rem 1.5rem; font-size: var(--t-base); }
.glass-panel { position: relative; border: 1px solid var(--glass-line); background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02)); border-radius: 16px; padding: 1.25rem; box-shadow: 0 40px 80px -40px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,255,255,.08); backdrop-filter: blur(6px); }
.glass-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; font-size: var(--t-xs); color: #8ea4b9; margin-bottom: .85rem; }
.glass-head b { color: var(--white); font-weight: 600; font-size: var(--t-sm); }
.glass-dots { display: flex; gap: .35rem; }
.glass-dots i { width: .55rem; height: .55rem; border-radius: 50%; background: rgba(255,255,255,.18); }
.glass-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .9rem; }
.glass-chips span { font: 600 .75rem/1 var(--font); color: #dbe6f0; padding: .45rem .6rem; border-radius: 6px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); }
.glass-chips span b { color: var(--cyan); font-weight: 600; }
.glass-note { font-size: .72rem; color: #7f96ac; margin-top: .75rem; }
/* zone diagram, dark variant */
.zone-diagram.dark .band { fill: rgba(255,255,255,.035); stroke: rgba(255,255,255,.12); }
.zone-diagram.dark .band-dmz { fill: rgba(46,230,214,.06); }
.zone-diagram.dark .band-label { fill: #dbe6f0; stroke: #0d1f38; }
.zone-diagram.dark .band-level { fill: #7f96ac; }
.zone-diagram.dark .node { fill: #0d1f38; stroke: #8fb4d3; }
.zone-diagram.dark .node-ink { fill: #8fb4d3; }
.zone-diagram.dark .wire { stroke: #4f6f8f; }
.zone-diagram.dark .conduit { stroke: var(--cyan); }
.zone-diagram.dark .fw { fill: #0d1f38; stroke: var(--cyan); }
.zone-diagram.dark .lens { fill: rgba(46,230,214,.08); stroke: var(--cyan); }
.zone-diagram.dark .lens-tick { stroke: var(--cyan); }
.zone-diagram.dark .lens-tag { fill: #0d1f38; stroke: var(--cyan); }
.zone-diagram.dark .lens-label { fill: var(--cyan); }
.zone-diagram.dark .lit { animation-name: lit-dark; }
@keyframes lit-dark { from { fill: #0d1f38; } to { fill: rgba(46,230,214,.28); } }

/* Standards marquee */
.std-marquee { background: var(--night-2); border-top: 1px solid rgba(255,255,255,.08); border-bottom: 1px solid rgba(255,255,255,.08); overflow: hidden; padding: 1rem 0; }
.std-marquee-track { display: flex; gap: 2.75rem; width: max-content; animation: marquee 48s linear infinite; }
.std-marquee:hover .std-marquee-track { animation-play-state: paused; }
.std-marquee span { font: 600 .95rem/1 var(--font); color: #9fb5c9; white-space: nowrap; display: inline-flex; align-items: center; gap: .6rem; }
.std-marquee span::before { content: ""; width: .4rem; height: .4rem; transform: rotate(45deg); background: var(--cyan); opacity: .7; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .std-marquee-track { animation: none; flex-wrap: wrap; width: auto; justify-content: center; padding: 0 1rem; } }

/* Pillars: platform + services */
.pillars { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.pillar { position: relative; padding: clamp(1.75rem, 3vw, 2.5rem); border-radius: 16px; border: 1px solid var(--line); background: var(--card); overflow: hidden; }
.pillar::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, var(--teal), var(--cyan)); }
.pillar .ico { width: 2.75rem; height: 2.75rem; color: var(--teal); margin-bottom: 1rem; }
.pillar h3 { font-size: var(--t-lg); }
.pillar p { color: var(--steel); }
@media (max-width: 760px) { .pillars { grid-template-columns: 1fr; } }

/* Module grid (dark glass cards) */
.mod-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.mod-grid li { margin: 0; }
.mod-card { display: flex; flex-direction: column; gap: .5rem; height: 100%; padding: 1.4rem; border-radius: 12px; border: 1px solid var(--glass-line); background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.015)); text-decoration: none; color: #b5c6d6; transition: border-color .18s, transform .18s, background-color .18s; }
.mod-card:hover { border-color: rgba(46,230,214,.6); transform: translateY(-2px); background-color: rgba(46,230,214,.04); }
.mod-card .ico { width: 2.6rem; height: 2.6rem; padding: .55rem; color: var(--cyan); border-radius: 10px; background: rgba(46,230,214,.1); border: 1px solid rgba(46,230,214,.25); margin-bottom: .4rem; }
.mod-card h3 { color: var(--white); font-size: var(--t-md); margin: 0; display: flex; justify-content: space-between; gap: .5rem; align-items: baseline; }
.mod-card p { margin: 0; font-size: var(--t-sm); line-height: 1.5; }
.mod-card .badge { font: 600 .68rem/1 var(--font); color: #ffcf7a; border: 1px solid rgba(255,207,122,.4); padding: .3rem .45rem; border-radius: 4px; white-space: nowrap; }
.mod-grid.light .mod-card { background: var(--card); border-color: var(--line); color: var(--steel); }
.mod-grid.light .mod-card h3 { color: var(--ink); }
.mod-grid.light .mod-card .ico { color: var(--teal); background: var(--teal-wash); border-color: transparent; }
.mod-grid.light .mod-card:hover { border-color: var(--teal); }
.mod-grid.light .mod-card .badge { color: var(--amber); border-color: #ecd3a8; }
@media (max-width: 960px) { .mod-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .mod-grid { grid-template-columns: 1fr; } }

/* Six-step flow */
.flow6 { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 1rem; counter-reset: f6; }
.flow6 li { margin: 0; counter-increment: f6; position: relative; padding-top: 3.25rem; }
.flow6 li::before { content: counter(f6, decimal-leading-zero); position: absolute; top: 0; left: 0; width: 2.4rem; height: 2.4rem; display: grid; place-items: center; border-radius: 50%; font: 600 .8rem/1 var(--font); color: var(--cyan-ink); background: var(--cyan); box-shadow: 0 0 0 6px rgba(46,230,214,.15); }
.flow6 li::after { content: ""; position: absolute; top: 1.2rem; left: 3rem; right: -.5rem; height: 2px; background: linear-gradient(90deg, rgba(46,230,214,.7), rgba(46,230,214,.1)); }
.flow6 li:last-child::after { display: none; }
.flow6 h3 { font-size: var(--t-md); margin-bottom: .3rem; }
.flow6 p { font-size: var(--t-sm); margin: 0; }
@media (max-width: 1000px) { .flow6 { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 2rem; } .flow6 li:nth-child(3)::after { display: none; } }
@media (max-width: 600px) { .flow6 { grid-template-columns: 1fr; } .flow6 li::after { display: none; } }

/* Standards tabs */
.std-tabs { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.5rem; }
.std-tab { font: 600 var(--t-sm)/1 var(--font); padding: .75rem 1.1rem; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; min-height: 44px; }
.std-tab[aria-selected="true"] { background: var(--night-2); border-color: var(--night-2); color: var(--white); }
.std-tab:hover { border-color: var(--teal); }
.std-panel { border: 1px solid var(--line); border-radius: 14px; background: var(--card); padding: clamp(1.25rem, 3vw, 2rem); }
.std-panel > p { color: var(--steel); max-width: 70ch; }
.std-list { list-style: none; padding: 0; margin: 1.25rem 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.std-list li { margin: 0; padding: 1rem; border-radius: 10px; background: var(--paper); border: 1px solid var(--line-soft); }
.std-list .code { display: block; font: 600 var(--t-base)/1.25 var(--font-display); color: var(--ink); }
.std-list .kind { display: inline-block; font: 600 .7rem/1 var(--font); color: var(--teal-dark); background: var(--teal-wash); padding: .3rem .45rem; border-radius: 4px; margin: .45rem 0; }
.std-list p { margin: 0; font-size: var(--t-sm); color: var(--steel); }
@media (max-width: 960px) { .std-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .std-list { grid-template-columns: 1fr; } }

/* Service and industry cards (visible grid) */
.card-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.card-grid li { margin: 0; }
.card-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.vcard { display: flex; flex-direction: column; height: 100%; padding: 1.5rem; border-radius: 12px; border: 1px solid var(--line); background: var(--card); text-decoration: none; color: var(--steel); transition: border-color .18s, box-shadow .18s, transform .18s; }
.vcard:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-2px); }
.vcard .ico { width: 2.5rem; height: 2.5rem; color: var(--teal); margin-bottom: 1rem; }
.vcard h3 { font-size: var(--t-md); color: var(--ink); margin-bottom: .45rem; }
.vcard p { font-size: var(--t-sm); margin: 0 0 1rem; flex: 1; }
.vcard .more { font: 600 var(--t-sm)/1 var(--font); color: var(--teal-dark); display: inline-flex; gap: .35rem; align-items: center; }
.vcard .more svg { width: 1em; height: 1em; }
.vcard.q .quote { font: 600 var(--t-md)/1.35 var(--font-display); color: var(--navy); margin-bottom: .75rem; }
@media (max-width: 1100px) { .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .card-grid.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .card-grid, .card-grid.cols-3 { grid-template-columns: 1fr; } }

/* Dark inner page heads */
.page-head { background: radial-gradient(800px 400px at 85% 0%, rgba(46,230,214,.14), transparent 60%), var(--night-2); border-bottom: 0; color: #c9d6e3; position: relative; overflow: hidden; }
.page-head::after { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: repeating-linear-gradient(115deg, transparent 0 90px, rgba(255,255,255,.03) 90px 91px); }
.page-head .wrap { position: relative; z-index: 1; }
.page-head h1 { color: var(--white); }
.page-head .lede { color: #b5c6d6; }
.page-head .kicker { color: var(--cyan); }
.page-head .kicker::before { background: var(--cyan); }
.page-head .crumbs a { color: #a9bccd; }
.page-head .crumbs li { color: #7f96ac; }
.page-head .crumbs li + li::before { color: #4f6f8f; }
.page-head .question { color: var(--white); border-left-color: var(--cyan); }
.page-head .article-meta { color: #8ea4b9; }
.page-head .title-block { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.18); }
.page-head .title-block div { border-bottom-color: rgba(255,255,255,.1); }
.page-head .title-block dt { color: #8ea4b9; }
.page-head .title-block dd { color: var(--white); }
.page-head .title-block .tb-head { background: rgba(46,230,214,.15); }
.page-head .title-block .tb-head dd { color: var(--cyan); }
.page-head .status-pill { background: rgba(255,207,122,.12); color: #ffcf7a; }
.page-head .btn-row { margin-top: 1.5rem; }

/* Module page */
.fw-tags { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: 0; }
.fw-tags li { margin: 0; font: 600 var(--t-xs)/1 var(--font); padding: .5rem .7rem; border-radius: 6px; background: var(--teal-wash); color: var(--teal-dark); }
.status-box { display: grid; grid-template-columns: 1.25rem 1fr; gap: .75rem; padding: 1rem 1.25rem; border-radius: 10px; background: var(--amber-wash); color: #5c3a06; font-size: var(--t-sm); border: 1px solid #ecd3a8; }
.status-box svg { width: 1.2rem; height: 1.2rem; margin-top: .15rem; }
.why-cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.why-cards > div { padding: 1.4rem; border-radius: 12px; border: 1px solid var(--glass-line); background: rgba(255,255,255,.04); }
.why-cards h3 { font-size: var(--t-md); }
.why-cards p { margin: 0; font-size: var(--t-sm); }
@media (max-width: 960px) { .why-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .why-cards { grid-template-columns: 1fr; } }
.region-table td:first-child { font-weight: 600; white-space: nowrap; }
.region-table .kind { font-size: var(--t-xs); color: var(--teal-dark); font-weight: 600; display: block; margin-top: .2rem; white-space: normal; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.table-wrap table { min-width: 720px; }
.table-wrap th:first-child, .table-wrap td:first-child { padding-left: 1.25rem; }
.mod-links { display: flex; flex-wrap: wrap; gap: .35rem; }
.mod-links a { font-size: var(--t-xs); font-weight: 600; text-decoration: none; padding: .3rem .5rem; border-radius: 4px; border: 1px solid var(--line); color: var(--teal-dark); white-space: nowrap; }
.mod-links a:hover { border-color: var(--teal); }
.cta-band .btn-primary { background: var(--cyan); color: var(--cyan-ink); }
.cta-band .btn-primary:hover { background: #7ff3e9; color: var(--cyan-ink); }
.cta-band { background: radial-gradient(700px 300px at 90% 50%, rgba(46,230,214,.18), transparent 60%), var(--night-2); }
.flow6.flow-vertical { grid-template-columns: 1fr; gap: 1.5rem; }
.flow6.flow-vertical li { padding: 0 0 0 3.5rem; }
.flow6.flow-vertical li::after { display: none; }
.related-plain { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.vcard .fw-tags { margin-bottom: 1rem; }
.check-list li span { min-width: 0; }
.dark .check-list svg { color: var(--cyan); }
.dark a.mod-card, a.mod-card { color: #b5c6d6; }
.mod-grid.light a.mod-card { color: var(--steel); }
.hero-v2 .btn-ghost { color: var(--white); border-color: rgba(255,255,255,.35); }
.hero-v2 .btn-ghost:hover { border-color: var(--cyan); color: var(--white); }
.hero-v2 .kicker, .hero-v2 .status-chip { display: flex; width: fit-content; }
.hero-v2 .kicker { color: var(--cyan); }
.hero-v2 .kicker::before { background: var(--cyan); }
.page-head .btn-ghost { color: var(--white); border-color: rgba(255,255,255,.35); }
.page-head .btn-ghost:hover { border-color: var(--cyan); color: var(--white); }
.nav-panel.mega a.panel-overview { display: block; }

/* ---------------------------------------------------------------- animated OT diagram */
.ot-diagram { width: 100%; height: auto; display: block; }
.ot-diagram .lv { fill: rgba(255,255,255,.03); stroke: rgba(143,180,211,.18); }
.ot-diagram .lv.dmz { fill: rgba(46,230,214,.05); stroke: rgba(46,230,214,.25); stroke-dasharray: 5 4; }
.ot-diagram .lv.scope { fill: rgba(46,230,214,.045); }
.ot-diagram .lv.field { fill: rgba(255,207,122,.035); }
.ot-diagram .lv-tag { font: 600 11px var(--mono); fill: #6f8aa5; }
.ot-diagram .lv-label { font: 600 12px var(--font); fill: #dbe6f0; letter-spacing: .01em; }
.ot-diagram .w { stroke: #2c4a6b; stroke-width: 1.6; fill: none; }
.ot-diagram .flow { stroke: var(--cyan); stroke-width: 2.4; fill: none; stroke-linecap: round; stroke-dasharray: 1.5 26; animation: ot-flow 1.8s linear infinite; filter: drop-shadow(0 0 3px rgba(46,230,214,.9)); }
.ot-diagram .flow.rev { animation-direction: reverse; }
.ot-diagram .flow.slow { animation-duration: 3s; }
.ot-diagram .flow.up { stroke: #8fd3ff; filter: drop-shadow(0 0 3px rgba(143,211,255,.9)); }
.ot-diagram .flow.field { stroke: #ffcf7a; filter: drop-shadow(0 0 3px rgba(255,207,122,.9)); stroke-dasharray: 1.5 18; }
@keyframes ot-flow { to { stroke-dashoffset: -27.5; } }
.ot-diagram .dev { color: #9cc9e8; }
.ot-diagram .dev.in { color: var(--cyan); }
.ot-diagram .dv { fill: #0d1f38; stroke: currentColor; stroke-width: 1.5; }
.ot-diagram .dv-line, .ot-diagram .dl { stroke: currentColor; stroke-width: 1.3; fill: none; stroke-linecap: round; }
.ot-diagram .dl { opacity: .65; }
.ot-diagram .dl-fill { fill: currentColor; opacity: .55; }
.ot-diagram .screen { fill: rgba(46,230,214,.25); stroke: currentColor; stroke-width: .8; }
.ot-diagram .trend { fill: none; stroke: #3ee07a; stroke-width: 1.4; stroke-dasharray: 40; animation: ot-trend 3s ease-in-out infinite; }
@keyframes ot-trend { 0% { stroke-dashoffset: 40; } 60%, 100% { stroke-dashoffset: 0; } }
.ot-diagram .led { fill: #3ee07a; animation: ot-blink 1.6s steps(2, jump-none) infinite; }
.ot-diagram .led.d2 { animation-delay: .5s; animation-duration: 2.1s; }
.ot-diagram .led.d3 { animation-delay: 1s; animation-duration: 1.2s; fill: #ffcf7a; }
@keyframes ot-blink { 50% { opacity: .2; } }
.ot-diagram .liquid { fill: rgba(46,150,230,.55); animation: ot-level 6s ease-in-out infinite; transform-box: fill-box; transform-origin: bottom; }
@keyframes ot-level { 50% { transform: scaleY(.55); } }
.ot-diagram .spin { transform-box: fill-box; transform-origin: center; animation: ot-spin 1.4s linear infinite; }
@keyframes ot-spin { to { transform: rotate(360deg); } }
.ot-diagram .needle { stroke: #ffcf7a; stroke-width: 1.6; stroke-linecap: round; transform-box: view-box; transform-origin: 17px 13px; animation: ot-needle 3s ease-in-out infinite alternate; }
@keyframes ot-needle { from { transform: rotate(-60deg); } to { transform: rotate(40deg); } }
.ot-diagram .m-txt { font: 700 9px var(--font); fill: currentColor; }
.ot-diagram .dev-label { font: 500 9.5px var(--font); fill: #8ea4b9; }
.ot-diagram .fw-dev { color: #ff8f6b; }
.ot-diagram .fwb { fill: #2a1414; }
.ot-diagram .fwl { stroke: #ff8f6b; stroke-width: 1.1; fill: none; }
.ot-diagram .fw-halo { fill: rgba(255,120,90,.0); animation: ot-halo 2.4s ease-in-out infinite; }
@keyframes ot-halo { 50% { fill: rgba(255,120,90,.28); } }
.ot-diagram .fw-label { font: 600 9px var(--font); fill: #ff9f80; }
.ot-diagram .lens-box { fill: none; stroke: var(--cyan); stroke-width: 1.6; stroke-dasharray: 6 5; }
.ot-diagram .lens-corner { fill: none; stroke: var(--cyan); stroke-width: 3; }
.ot-diagram .scan-line { fill: rgba(46,230,214,.5); filter: drop-shadow(0 0 6px rgba(46,230,214,.9)); animation: ot-scan 4.5s ease-in-out infinite alternate; }
@keyframes ot-scan { to { transform: translateY(178px); } }
.ot-diagram .lens-tag { fill: #071a2c; stroke: var(--cyan); stroke-width: 1.2; }
.ot-diagram .lens-txt { font: 700 10.5px var(--font); fill: var(--cyan); }
@media (prefers-reduced-motion: reduce) {
  .ot-diagram .flow { stroke-dasharray: none; opacity: .35; }
}
.hero-v2-grid { grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); }
@media (max-width: 1060px) { .hero-v2-grid { grid-template-columns: 1fr; } .hero-v2 h1 { max-width: 18ch; } }
.glass-panel .ot-diagram { margin: 0 -4px; }

/* OT circuit texture for dark surfaces */
.section-night, .page-head, .site-footer { background-image:
  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240' fill='none' stroke='%232ee6d6' stroke-opacity='.07' stroke-width='1'%3E%3Cpath d='M0 40h60l20 20h80M240 120h-50l-20-20h-60M40 240v-60l20-20v-50M200 0v50l-20 20v70'/%3E%3Ccircle cx='160' cy='60' r='3'/%3E%3Ccircle cx='110' cy='100' r='3'/%3E%3Ccircle cx='60' cy='110' r='3'/%3E%3Ccircle cx='180' cy='140' r='3'/%3E%3C/g%3E%3C/svg%3E"); }
.page-head { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240' fill='none' stroke='%232ee6d6' stroke-opacity='.08' stroke-width='1'%3E%3Cpath d='M0 40h60l20 20h80M240 120h-50l-20-20h-60M40 240v-60l20-20v-50M200 0v50l-20 20v70'/%3E%3Ccircle cx='160' cy='60' r='3'/%3E%3Ccircle cx='110' cy='100' r='3'/%3E%3Ccircle cx='60' cy='110' r='3'/%3E%3Ccircle cx='180' cy='140' r='3'/%3E%3C/svg%3E"), radial-gradient(800px 400px at 85% 0%, rgba(46,230,214,.14), transparent 60%); background-color: var(--night-2); }
.site-footer { background-color: var(--night); }
.ot-diagram .dev-label, .ot-diagram .fw-label { paint-order: stroke; stroke: #0c1b31; stroke-width: 4px; stroke-linejoin: round; }

/* ---------------------------------------------------------------- sector architectures */
.arch { position: relative; }
.arch-tabs { display: flex; gap: .4rem; overflow-x: auto; padding-bottom: .6rem; margin-bottom: .4rem; scrollbar-width: thin; }
.arch-tab { flex-shrink: 0; font: 500 .8rem/1 var(--font); color: #b5c6d6; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12); border-radius: 999px; padding: .55rem .8rem; cursor: pointer; min-height: 38px; }
.arch-tab b { color: var(--white); font-weight: 600; margin-right: .2rem; }
.arch-tab:hover { border-color: rgba(46,230,214,.5); }
.arch-tab[aria-selected="true"] { background: rgba(46,230,214,.14); border-color: var(--cyan); color: var(--white); }
.arch-tab[aria-selected="true"] b { color: var(--cyan); }
.arch-stage { display: grid; position: relative; }
.arch-slide { grid-area: 1 / 1; margin: 0; opacity: 0; visibility: hidden; transform: scale(.985) translateY(6px); transition: opacity .45s ease, transform .45s ease, visibility 0s linear .45s; align-self: start; }
.arch-slide.is-active { opacity: 1; visibility: visible; transform: none; transition: opacity .45s ease, transform .45s ease; }
.arch-cap { display: flex; flex-wrap: wrap; align-items: baseline; gap: .35rem .6rem; margin-bottom: .6rem; color: #b5c6d6; font-size: var(--t-sm); }
.arch-site { font: 600 .72rem/1 var(--font); color: var(--cyan-ink); background: var(--cyan); padding: .3rem .5rem; border-radius: 4px; }
.arch-cap strong { color: var(--white); font-weight: 600; font-size: var(--t-base); }
.arch-sum { flex-basis: 100%; font-size: .82rem; color: #8ea4b9; }
.arch.compact .arch-sum { display: none; }
.arch-svg { width: 100%; height: auto; display: block; }
.arch-svg .lv-tag { font: 600 11px var(--mono); fill: #6f8aa5; }
.arch-svg .zone-box { fill: rgba(255,255,255,.03); stroke: rgba(143,180,211,.2); }
.arch-svg .zone-box.dmz { fill: rgba(46,230,214,.05); stroke: rgba(46,230,214,.3); stroke-dasharray: 5 4; }
.arch-svg .zone-box.in-scope { fill: rgba(46,230,214,.05); }
.arch-svg .zone-box.field { fill: rgba(255,207,122,.035); }
.arch-svg .zone-title { font: 600 12.5px var(--font); fill: #e3edf5; pointer-events: none; }
.arch-svg .zone-slt { font: 700 9.5px var(--font); fill: var(--cyan); letter-spacing: .04em; pointer-events: none; }
.arch-svg .w { stroke: #2c4a6b; stroke-width: 1.6; fill: none; }
.arch-svg .flow { stroke: var(--cyan); stroke-width: 2.4; fill: none; stroke-linecap: round; stroke-dasharray: 1.5 26; animation: ot-flow 1.8s linear infinite; filter: drop-shadow(0 0 3px rgba(46,230,214,.9)); pointer-events: none; }
.arch-svg .flow.rev { animation-direction: reverse; }
.arch-svg .flow.slow { animation-duration: 2.8s; }
.arch-svg .flow.up { stroke: #8fd3ff; animation-direction: reverse; }
.arch-svg .flow.field { stroke: #ffcf7a; stroke-dasharray: 1.5 16; filter: drop-shadow(0 0 3px rgba(255,207,122,.9)); }
.arch-svg .dev { color: #9cc9e8; pointer-events: none; }
.arch-svg .dev.in { color: var(--cyan); }
.arch-svg .led { animation: ot-blink 1.6s steps(2, jump-none) infinite; }
.arch-svg .led.d2 { animation-delay: .5s; animation-duration: 2.1s; }
.arch-svg .led.d3 { animation-delay: 1s; animation-duration: 1.2s; }
.arch-svg .halo { animation: arch-halo 2.4s ease-in-out infinite; }
@keyframes arch-halo { 50% { opacity: .3; } }
.arch-svg .trend { stroke-dasharray: 40; animation: ot-trend 3s ease-in-out infinite; }
.arch-svg .liquid { transform-box: fill-box; transform-origin: bottom; animation: ot-level 6s ease-in-out infinite; }
.arch-svg .spin { transform-box: fill-box; transform-origin: center; animation: ot-spin 1.4s linear infinite; }
.arch-svg .needle { transform-box: fill-box; transform-origin: 0% 100%; animation: arch-needle 2.6s ease-in-out infinite alternate; }
@keyframes arch-needle { from { transform: rotate(-25deg); } to { transform: rotate(20deg); } }
.arch-svg .arm { transform-box: view-box; transform-origin: 13px 25px; animation: arch-arm 3s ease-in-out infinite alternate; }
@keyframes arch-arm { from { transform: rotate(-12deg); } to { transform: rotate(10deg); } }
.arch-svg .belt { animation: arch-belt 2.4s linear infinite; }
@keyframes arch-belt { from { transform: translateX(-4px); } to { transform: translateX(6px); } }
.arch-svg .cb-blade, .arch-svg .pointblade { transform-box: fill-box; transform-origin: 0% 100%; animation: arch-toggle 5s steps(1) infinite; }
@keyframes arch-toggle { 50% { transform: rotate(-14deg); } }
.arch-svg .sig-r { animation: arch-sig 6s steps(1) infinite; }
.arch-svg .sig-g { animation: arch-sig 6s steps(1) infinite reverse; }
@keyframes arch-sig { 0% { opacity: 1; } 50% { opacity: .15; } }
.arch-svg .wave { animation: ot-blink 1.8s ease-in-out infinite; }
.arch-svg .flowarrow { animation: arch-belt 1.2s linear infinite; }
.arch-svg .dev-label { font: 500 10.5px var(--font); fill: #93a9be; paint-order: stroke; stroke: #0c1b31; stroke-width: 4px; stroke-linejoin: round; pointer-events: none; }
.arch-svg .conduit-label { font: 600 9.5px var(--font); fill: #ffb199; paint-order: stroke; stroke: #0c1b31; stroke-width: 4px; stroke-linejoin: round; pointer-events: none; }
.arch-svg .lens-box { fill: none; stroke: var(--cyan); stroke-width: 1.6; stroke-dasharray: 6 5; pointer-events: none; }
.arch-svg .scan-line { fill: rgba(46,230,214,.45); filter: drop-shadow(0 0 6px rgba(46,230,214,.9)); pointer-events: none; }
.arch-svg .lens-tag { fill: #071a2c; stroke: var(--cyan); stroke-width: 1.2; pointer-events: none; }
.arch-svg .lens-txt { font: 700 10.5px var(--font); fill: var(--cyan); pointer-events: none; }
.arch-svg .zone-hit { fill: transparent; stroke: transparent; stroke-width: 2; cursor: pointer; transition: fill .15s, stroke .15s; }
.arch-svg .zone-hit:hover { fill: rgba(46,230,214,.07); stroke: rgba(46,230,214,.7); }
.arch-svg .zone-hit:focus-visible { outline: none; stroke: var(--cyan); fill: rgba(46,230,214,.1); }
.arch-svg .zone-hit.is-selected { stroke: var(--cyan); fill: rgba(46,230,214,.12); }
.arch-bar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: .6rem; flex-wrap: wrap; }
.arch-hint { margin: 0; font-size: .8rem; color: #8ea4b9; display: flex; align-items: center; gap: .45rem; }
.arch-hint::before { content: ""; width: .55rem; height: .55rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(46,230,214,.2); animation: pulse 2.4s ease-in-out infinite; }
.arch-ctrls { display: flex; gap: .4rem; }
.arch-btn { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.05); color: var(--white); font-size: 1.15rem; line-height: 1; cursor: pointer; display: grid; place-items: center; }
.arch-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.arch-sheet { position: absolute; left: 0; right: 0; bottom: 0; z-index: 5; max-height: 92%; overflow-y: auto; background: linear-gradient(180deg, rgba(14,36,66,.97), rgba(8,22,42,.98)); border: 1px solid rgba(46,230,214,.45); border-radius: 12px; padding: 1.25rem 1.25rem 1rem; color: #c9d6e3; box-shadow: 0 -20px 60px -20px rgba(0,0,0,.8); transform-origin: bottom; animation: sheet-in .35s cubic-bezier(.2,.8,.2,1); }
@keyframes sheet-in { from { opacity: 0; transform: perspective(800px) rotateX(-18deg) translateY(30px); } to { opacity: 1; transform: none; } }
.arch-sheet h3 { color: var(--white); font-size: var(--t-md); margin: 0 0 .4rem; }
.arch-sheet h4 { color: var(--cyan); font: 600 .78rem/1.2 var(--font); margin: 0 0 .4rem; letter-spacing: .02em; }
.arch-sheet p { font-size: .88rem; margin: 0 0 .75rem; }
.arch-sheet ul { margin: 0; padding-left: 1.1rem; font-size: .84rem; }
.arch-sheet li { margin-bottom: .25rem; }
.zd-kicker { font: 600 .72rem/1 var(--font) !important; color: #8ea4b9; margin-bottom: .45rem !important; }
.zd-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: .75rem; }
.zd-conduit { font-size: .8rem !important; color: #a9bccd; border-top: 1px solid rgba(255,255,255,.1); padding-top: .6rem; margin: 0 !important; }
.zd-conduit b { color: var(--white); font-weight: 600; }
.arch-sheet-close { position: sticky; float: right; top: 0; width: 34px; height: 34px; border-radius: 50%; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.06); color: var(--white); font-size: 1.2rem; cursor: pointer; margin: -.25rem -.25rem 0 .5rem; }
.arch-sheet-close:hover { border-color: var(--cyan); }
@media (max-width: 560px) { .zd-cols { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .arch-svg .flow { stroke-dasharray: none; opacity: .35; } .arch-slide { transition: none; } }

/* ---------------------------------------------------------------- flip cards (modules) */
.flip { perspective: 1200px; min-height: 250px; }
.flip-inner { position: relative; height: 100%; min-height: 250px; transform-style: preserve-3d; transition: transform .6s cubic-bezier(.2,.75,.2,1); }
.flip.is-flipped .flip-inner { transform: rotateY(180deg); }
.flip-face { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; display: flex; flex-direction: column; gap: .5rem; padding: 1.4rem; border-radius: 12px; border: 1px solid var(--glass-line); background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.015)), var(--night-2); color: #b5c6d6; overflow: hidden; }
.flip-front { cursor: pointer; transition: border-color .18s; }
.flip-front:hover { border-color: rgba(46,230,214,.6); }
.flip-back { transform: rotateY(180deg); border-color: rgba(46,230,214,.55); background: radial-gradient(400px 200px at 100% 0%, rgba(46,230,214,.18), transparent 60%), #0d2340; overflow-y: auto; }
.flip-face .ico { width: 2.6rem; height: 2.6rem; padding: .55rem; color: var(--cyan); border-radius: 10px; background: rgba(46,230,214,.1); border: 1px solid rgba(46,230,214,.25); margin-bottom: .4rem; flex-shrink: 0; }
.flip-face h3 { color: var(--white); font-size: var(--t-md); margin: 0; display: flex; justify-content: space-between; gap: .5rem; align-items: baseline; }
.flip-face p { margin: 0; font-size: var(--t-sm); line-height: 1.5; }
.flip-face .badge { font: 600 .68rem/1 var(--font); color: #ffcf7a; border: 1px solid rgba(255,207,122,.4); padding: .3rem .45rem; border-radius: 4px; white-space: nowrap; }
.flip-toggle { margin-top: auto; align-self: flex-start; display: inline-flex; align-items: center; gap: .4rem; font: 600 .8rem/1 var(--font); color: var(--cyan); background: none; border: 1px solid rgba(46,230,214,.35); border-radius: 999px; padding: .5rem .8rem; cursor: pointer; }
.flip-toggle:hover { background: rgba(46,230,214,.1); }
.flip-toggle svg { width: 1rem; height: 1rem; }
.flip-back ul { margin: .1rem 0 .4rem; padding-left: 1.05rem; font-size: .82rem; }
.flip-back li { margin-bottom: .2rem; }
.flip-back .fw-mini { display: flex; flex-wrap: wrap; gap: .3rem; }
.flip-back .fw-mini span { font: 600 .68rem/1 var(--font); padding: .3rem .4rem; border-radius: 4px; background: rgba(46,230,214,.12); color: var(--cyan); }
.flip-actions { margin-top: auto; display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; padding-top: .5rem; }
.flip-actions .btn { padding: .6rem .9rem; font-size: .8rem; min-height: 36px; }
.mod-grid.light .flip-face { background: var(--card); border-color: var(--line); color: var(--steel); }
.mod-grid.light .flip-face h3 { color: var(--ink); }
.mod-grid.light .flip-back { background: radial-gradient(400px 200px at 100% 0%, rgba(14,124,123,.12), transparent 60%), var(--white); border-color: var(--teal); }
.mod-grid.light .flip-face .ico { color: var(--teal); background: var(--teal-wash); border-color: transparent; }
.mod-grid.light .flip-toggle { color: var(--teal-dark); border-color: rgba(14,124,123,.4); }
.mod-grid.light .flip-back .fw-mini span { background: var(--teal-wash); color: var(--teal-dark); }
@media (prefers-reduced-motion: reduce) { .flip-inner { transition: none; } }

/* ---------------------------------------------------------------- page navigation helpers */
.page-tools { display: flex; align-items: center; gap: .75rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.page-tools .crumbs { margin: 0; }
.back-btn { display: inline-flex; align-items: center; gap: .35rem; font: 600 .8rem/1 var(--font); color: var(--white); background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.2); border-radius: 999px; padding: .45rem .8rem; cursor: pointer; }
.back-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.back-btn svg { width: .9rem; height: .9rem; transform: rotate(180deg); }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.pager a { display: flex; flex-direction: column; gap: .3rem; padding: 1.1rem 1.25rem; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; background: var(--card); transition: border-color .15s; }
.pager a:hover { border-color: var(--teal); }
.pager span { font-size: var(--t-xs); color: var(--muted); font-weight: 600; }
.pager strong { color: var(--ink); font-weight: 600; }
.pager .next { text-align: right; grid-column: 2; }
.pager-section { padding: 2.5rem 0; background: var(--paper); border-top: 1px solid var(--line); }
.to-top { position: fixed; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); z-index: 40; width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(46,230,214,.5); background: var(--night-2); color: var(--cyan); display: grid; place-items: center; cursor: pointer; box-shadow: 0 10px 30px -10px rgba(0,0,0,.6); opacity: 0; pointer-events: none; transition: opacity .2s; }
.to-top.is-visible { opacity: 1; pointer-events: auto; }
.to-top svg { width: 20px; height: 20px; transform: rotate(-90deg); }
@media (max-width: 560px) { .pager { grid-template-columns: 1fr; } .pager .next { grid-column: 1; } }

/* zone sensitivity colours (IT -> critical OT) */
.arch-svg .zone-box.z-it { fill: rgba(90,150,240,.07); stroke: rgba(120,170,240,.35); }
.arch-svg .zone-box.z-dmz { fill: rgba(255,207,122,.06); stroke: rgba(255,207,122,.45); stroke-dasharray: 5 4; }
.arch-svg .zone-box.z-ops { fill: rgba(255,150,80,.07); stroke: rgba(255,160,90,.45); }
.arch-svg .zone-box.z-crit { fill: rgba(255,70,80,.09); stroke: rgba(255,95,100,.6); }
.arch-svg .zone-box.z-field { fill: rgba(200,50,120,.09); stroke: rgba(230,90,150,.55); }
.arch-svg .zone-box.z-crit.in-scope, .arch-svg .zone-box.z-field.in-scope { animation: crit-pulse 3.2s ease-in-out infinite; }
@keyframes crit-pulse { 50% { fill: rgba(255,70,80,.16); } }
.arch-svg .t-it .zone-slt { fill: #8fb8f5; } .arch-svg .t-dmz .zone-slt { fill: #ffcf7a; } .arch-svg .t-ops .zone-slt { fill: #ffae74; }
.arch-svg .t-crit .zone-slt { fill: #ff7b82; } .arch-svg .t-field .zone-slt { fill: #ef7fb4; }
.arch-legend { display: flex; flex-wrap: wrap; gap: .35rem .9rem; font: 500 .74rem/1 var(--font); color: #a9bccd; }
.arch-legend span { display: inline-flex; align-items: center; gap: .35rem; }
.arch-legend span::before { content: ""; width: .7rem; height: .7rem; border-radius: 3px; border: 1px solid; }
.lg-it::before { background: rgba(90,150,240,.25); border-color: #8fb8f5 !important; }
.lg-dmz::before { background: rgba(255,207,122,.2); border-color: #ffcf7a !important; }
.lg-ops::before { background: rgba(255,150,80,.25); border-color: #ffae74 !important; }
.lg-crit::before { background: rgba(255,70,80,.3); border-color: #ff7b82 !important; }
.lg-field::before { background: rgba(200,50,120,.3); border-color: #ef7fb4 !important; }
.arch-bar { align-items: center; }
.arch-bar .arch-hint { flex-basis: 100%; order: 3; }
.arch-tabs { flex-wrap: wrap; overflow: visible; padding-bottom: .3rem; }
/* wider hero so the architecture has room */
.hero-v2 .wrap { max-width: 1600px; }
.hero-v2-grid { grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: clamp(2rem, 4vw, 3.5rem); }
.hero-v2 h1 { font-size: clamp(2.3rem, 1.3rem + 3vw, 3.7rem); }
@media (max-width: 1100px) { .hero-v2-grid { grid-template-columns: 1fr; } }

.flip, .flip-inner { min-height: 270px; }
.flip-back { overflow: hidden; cursor: pointer; padding-right: 3rem; }
.flip-pin { position: absolute; top: .75rem; right: .75rem; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; border: 1px solid rgba(46,230,214,.35); background: rgba(255,255,255,.04); color: #9fb5c9; cursor: pointer; transition: transform .2s, color .2s, background-color .2s; }
.flip-pin svg { width: 16px; height: 16px; transform: rotate(35deg); transition: transform .2s; }
.flip-pin:hover { color: var(--cyan); }
.flip-pin[aria-pressed="true"] { background: var(--cyan); color: var(--cyan-ink); border-color: var(--cyan); }
.flip-pin[aria-pressed="true"] svg { transform: rotate(0); }
.flip-hint { font-size: .72rem; color: #7f96ac; }
.mod-grid.light .flip-pin { color: var(--steel); border-color: var(--line); }
.mod-grid.light .flip-pin[aria-pressed="true"] { background: var(--teal); color: var(--white); }
.mod-grid.light .flip-hint { color: var(--muted); }

/* all dropdowns share the mega style: icon + heading + short description */
.nav-panel.mega { min-width: 620px; left: -1rem; }
.nav-panel.mega ul.cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.nav-panel.mega.cols3 { min-width: 780px; left: -4rem; }
.nav-panel.mega.cols3 ul.cols { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.nav-list > li:nth-last-child(-n+3) .nav-panel.mega { left: auto; right: -1rem; }
@media (max-width: 1240px) { .nav-panel.mega, .nav-panel.mega.cols3 { min-width: 0; } .nav-panel.mega ul.cols, .nav-panel.mega.cols3 ul.cols { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- full-screen animated page heads */
.page-head { min-height: calc(100svh - 72px); display: flex; align-items: center; padding-block: clamp(3rem, 8vh, 6rem); }
.page-head > .wrap { width: 100%; }
.compact-head .page-head { min-height: 52svh; }
.page-head .scene-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.page-head::before { content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none; background: linear-gradient(90deg, rgba(11,29,54,.96) 0%, rgba(11,29,54,.82) 38%, rgba(11,29,54,.15) 70%, transparent 100%); }
.page-head .wrap { z-index: 2; }
.page-head h1 { font-size: clamp(2.3rem, 1.4rem + 3vw, 3.9rem); letter-spacing: -0.03em; max-width: 18ch; }
.page-head .lede { max-width: 56ch; }
.scroll-cue { position: absolute; left: 50%; bottom: 1.5rem; z-index: 3; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: .4rem; color: #8ea4b9; text-decoration: none; font: 600 .7rem/1 var(--font); letter-spacing: .12em; text-transform: uppercase; }
.scroll-cue i { width: 22px; height: 34px; border: 2px solid rgba(46,230,214,.6); border-radius: 12px; position: relative; }
.scroll-cue i::after { content: ""; position: absolute; left: 50%; top: 6px; width: 4px; height: 7px; margin-left: -2px; border-radius: 2px; background: var(--cyan); animation: cue 1.6s ease-in-out infinite; }
@keyframes cue { 0% { transform: translateY(0); opacity: 1; } 80% { transform: translateY(11px); opacity: 0; } 100% { opacity: 0; } }
.scroll-cue:hover { color: var(--cyan); }
.compact-head .scroll-cue { display: none; }
.page-head .page-head-grid { align-items: center; }
@media (max-width: 760px) { .page-head::before { background: linear-gradient(180deg, rgba(11,29,54,.9), rgba(11,29,54,.75)); } .scroll-cue { display: none; } }
/* home hero full screen */
.hero-v2 { min-height: calc(100svh - 72px); display: flex; align-items: center; }
.hero-v2 > .wrap { width: 100%; }

.page-head .title-block { display: none; }
.page-head .page-head-grid { grid-template-columns: 1fr; }

/* ---------------------------------------------------------------- animated pillars */
.pillars-anim { gap: 1.5rem; }
.pillar-x { display: flex; flex-direction: column; border-radius: 18px; overflow: hidden; background: radial-gradient(500px 260px at 50% 0%, rgba(46,230,214,.14), transparent 70%), var(--night-2); border: 1px solid rgba(46,230,214,.25); color: #c9d6e3; box-shadow: 0 30px 60px -35px rgba(6,17,31,.7); }
.pillar-x .pillar-body { padding: 1.5rem 1.75rem 1.75rem; border-top: 1px solid rgba(255,255,255,.08); }
.pillar-x h3 { color: var(--white); font-size: var(--t-lg); margin-bottom: .4rem; }
.pillar-x p { color: #a9bccd; }
.pillar-x .text-link { color: var(--cyan); }
.pillar-tag { display: inline-block; font: 600 .7rem/1 var(--font); color: var(--cyan-ink); background: var(--cyan); padding: .3rem .5rem; border-radius: 4px; margin-bottom: .75rem; }
.pf-anim { width: 100%; height: auto; display: block; padding: .5rem 1rem 0; }
.pf-ring { animation: ot-flow 1.4s linear infinite; }
.pf-glow { animation: pf-breathe 3s ease-in-out infinite; transform-origin: 210px 135px; }
@keyframes pf-breathe { 50% { transform: scale(1.15); opacity: .7; } }
.pf-core { font: 700 12px var(--font); fill: #ffffff; }
.pf-num { font: 700 11px var(--font); fill: #8fb4d3; }
.pf-label { font: 600 12px var(--font); fill: #dbe6f0; }
.pf-node circle { transition: fill .3s, stroke .3s; animation: pf-lit 6s infinite; }
.pf-node.n1 circle { animation-delay: 1s; } .pf-node.n2 circle { animation-delay: 2s; } .pf-node.n3 circle { animation-delay: 3s; } .pf-node.n4 circle { animation-delay: 4s; } .pf-node.n5 circle { animation-delay: 5s; }
@keyframes pf-lit { 0%, 18%, 100% { fill: #0d1f38; stroke: #8fb4d3; } 4%, 14% { fill: #2ee6d6; stroke: #2ee6d6; } }
.svc-anim { padding: 1.25rem 1.5rem .75rem; display: grid; gap: .75rem; }
.svc-inds { display: flex; gap: .4rem; flex-wrap: wrap; }
.svc-ind { display: inline-flex; align-items: center; gap: .4rem; padding: .45rem .6rem; border-radius: 999px; border: 1px solid rgba(255,255,255,.12); font: 500 .78rem/1 var(--font); color: #a9bccd; cursor: default; transition: all .3s; }
.svc-ind .ico { width: 1rem; height: 1rem; }
.svc-ind b { font-weight: 600; }
.svc-ind.is-on { background: rgba(46,230,214,.15); border-color: var(--cyan); color: var(--white); box-shadow: 0 0 20px -6px rgba(46,230,214,.8); }
.svc-gauge { display: grid; grid-template-columns: minmax(0, 220px) 1fr; gap: 1rem; align-items: center; }
.svc-gauge svg { width: 100%; height: auto; }
.svc-needle { transform-origin: 110px 112px; transform: rotate(-68deg); transition: transform 1s cubic-bezier(.3,1.4,.5,1); }
.g-lbl { font: 600 9px var(--font); fill: #8ea4b9; }
.svc-appetite { margin: 0; font-size: var(--t-sm); color: #a9bccd; }
.svc-appetite b { display: block; font: 600 var(--t-lg)/1.2 var(--font-display); color: var(--white); margin-top: .2rem; }
.svc-chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.svc-chips li { margin: 0; font: 600 .76rem/1 var(--font); color: var(--cyan); background: rgba(46,230,214,.08); border: 1px solid rgba(46,230,214,.3); padding: .5rem .65rem; border-radius: 6px; }
.svc-chips.swap li { animation: chip-in .45s ease both; }
.svc-chips.swap li:nth-child(2) { animation-delay: .08s; } .svc-chips.swap li:nth-child(3) { animation-delay: .16s; }
@keyframes chip-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.svc-note { margin: 0; font-size: .72rem; color: #7f96ac; }
@media (max-width: 520px) { .svc-gauge { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .pf-ring, .pf-glow, .pf-node circle { animation: none; } }
.hero-v2 .arch-svg { max-height: calc(100svh - 320px); min-height: 380px; }
.hero-v2 .arch-sum { display: none; }

/* ---------------------------------------------------------------- blog */
.section-head-row { display: flex; justify-content: space-between; align-items: end; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 2rem; }
.section-head-row h2 { margin-bottom: .25rem; }
.section-head-row .lede { margin: 0; }
.blog-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 1.25rem; }
.blog-grid li[hidden] { display: none; }
.blog-card { position: relative; display: flex; flex-direction: column; gap: .75rem; height: 100%; padding: 1.5rem; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); color: var(--ink); text-decoration: none; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.blog-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, var(--cyan), transparent); transform: scaleX(0); transform-origin: left; transition: transform .4s ease; }
.blog-card:hover, .blog-card:focus-visible { transform: translateY(-4px); border-color: var(--teal-dark, #0f8f86); box-shadow: 0 18px 40px -24px rgba(6, 17, 31, .45); }
.blog-card:hover::before, .blog-card:focus-visible::before { transform: scaleX(1); }
.blog-card h3 { font-size: var(--t-md); margin: 0; line-height: 1.3; }
.blog-card p { margin: 0; color: var(--muted); font-size: var(--t-sm); flex: 1; }
.bc-top { display: flex; justify-content: space-between; align-items: center; font-size: var(--t-xs, .8rem); color: var(--muted); }
.bc-tags { display: flex; flex-wrap: wrap; gap: .4rem .75rem; font-size: var(--t-xs, .78rem); color: var(--steel); }
.blog-card .more { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; font-size: var(--t-sm); color: var(--teal-dark, #0f8f86); }
.blog-card .more svg { width: 1rem; height: 1rem; }
.blog-feature { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); border-radius: calc(var(--radius) * 1.5); overflow: hidden; border: 1px solid var(--line); text-decoration: none; color: var(--ink); background: var(--card); margin-bottom: 2.5rem; transition: box-shadow .3s ease; }
.blog-feature:hover, .blog-feature:focus-visible { box-shadow: 0 24px 60px -30px rgba(6, 17, 31, .55); }
.bf-visual { position: relative; min-height: 260px; background: radial-gradient(circle at 30% 30%, rgba(46, 230, 214, .28), transparent 55%), linear-gradient(135deg, var(--night), var(--night-2)); display: grid; place-items: center; overflow: hidden; }
.bf-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(46, 230, 214, .12) 1px, transparent 1px), linear-gradient(90deg, rgba(46, 230, 214, .12) 1px, transparent 1px); background-size: 28px 28px; animation: bf-pan 18s linear infinite; }
@keyframes bf-pan { to { background-position: 28px 28px; } }
.bf-big { position: relative; z-index: 1; font: 800 clamp(3rem, 8vw, 5.5rem)/1 var(--font); letter-spacing: -.03em; color: transparent; -webkit-text-stroke: 1.5px var(--cyan); text-shadow: 0 0 30px rgba(46, 230, 214, .35); }
.bf-cat { position: absolute; z-index: 1; top: 1rem; left: 1rem; font-size: var(--t-xs, .78rem); color: var(--cyan); letter-spacing: .12em; text-transform: uppercase; }
.bf-body { padding: clamp(1.5rem, 4vw, 2.75rem); display: flex; flex-direction: column; gap: .75rem; justify-content: center; }
.bf-body h3 { font-size: var(--t-lg, 1.6rem); margin: 0; line-height: 1.25; }
.bf-body p { margin: 0; color: var(--muted); }
.bf-body .meta { font-size: var(--t-sm); }
.bf-body .more { display: inline-flex; gap: .4rem; align-items: center; font-weight: 600; color: var(--teal-dark, #0f8f86); }
.bf-body .more svg { width: 1rem; height: 1rem; }
.blog-filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.5rem; }
.blog-filters .std-tab[aria-pressed="true"] { background: var(--night-2); border-color: var(--night-2); color: var(--white); }
.share-row { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); font-size: var(--t-sm); }
.share-row span { color: var(--muted); font-weight: 600; }
.kw-line { font-size: var(--t-sm); color: var(--muted); }
.related-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); gap: 2rem 2.5rem; }
.sitemap-grid h2 { font-size: var(--t-md); margin-bottom: .6rem; }
.sitemap-grid h2 a { color: inherit; }
.sitemap-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; font-size: var(--t-sm); }
@media (max-width: 800px) { .blog-feature { grid-template-columns: 1fr; } .bf-visual { min-height: 180px; } .related-3 { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .bf-grid { animation: none; } .blog-card, .blog-card::before { transition: none; } }
.bc-tags span { padding: .2rem .55rem; border-radius: 999px; background: var(--paper); border: 1px solid var(--line); }

/* ---------------------------------------------------------------- mist light theme: softer light bands after dark headers */
main { background-color: var(--surface); background-image: linear-gradient(rgba(23, 50, 77, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(23, 50, 77, .035) 1px, transparent 1px); background-size: 44px 44px; }
.section-paper { background-color: var(--paper); background-image: radial-gradient(ellipse 60% 80% at 100% 0%, rgba(14, 124, 123, .07), transparent 60%); }
.page-head, .hero-v2 { box-shadow: 0 1px 0 rgba(46, 230, 214, .28), 0 18px 40px -18px rgba(6, 17, 31, .55); position: relative; z-index: 1; }
.page-head + .section, .page-head + div.section, .page-head + section { background-image: linear-gradient(180deg, rgba(11, 29, 54, .10), transparent 220px), linear-gradient(rgba(23, 50, 77, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(23, 50, 77, .035) 1px, transparent 1px); background-size: auto, 44px 44px, 44px 44px; }
.card-lite, .tile, .blog-card, .vcard, .pillar, .std-panel, .qc-panel, .form { box-shadow: 0 1px 0 rgba(255, 255, 255, .7) inset, 0 10px 30px -22px rgba(11, 29, 54, .45); }

/* ---------------------------------------------------------------- custom assessment */
.ca-wizard { max-width: 1040px; margin: 0 auto; scroll-margin-top: 6rem; }
.ca-steps { list-style: none; padding: 0; margin: 0 0 2rem; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: .5rem; counter-reset: none; }
.ca-steps li { position: relative; margin: 0; display: flex; flex-direction: column; align-items: center; gap: .4rem; font-size: var(--t-xs); color: var(--muted); text-align: center; }
.ca-steps li::before { content: ""; position: absolute; top: 1rem; left: calc(-50% + 1.1rem); right: calc(50% + 1.1rem); height: 2px; background: var(--line); }
.ca-steps li:first-child::before { display: none; }
.ca-steps li.done::before, .ca-steps li.on::before { background: var(--teal); }
.ca-steps .dot { position: relative; width: 2rem; height: 2rem; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--line); background: var(--card); font-weight: 600; }
.ca-steps .on .dot { border-color: var(--teal); color: var(--teal-dark); box-shadow: 0 0 0 4px rgba(14, 124, 123, .15); }
.ca-steps .done .dot { background: var(--teal); border-color: var(--teal); color: var(--white); }
.ca-steps .on { color: var(--ink); font-weight: 600; }
@media (max-width: 640px) { .ca-steps .lbl { display: none; } }
.ca-step { border: 1px solid var(--line); border-radius: 14px; background: var(--card); padding: clamp(1.25rem, 3vw, 2rem); margin: 0; box-shadow: 0 10px 30px -22px rgba(11, 29, 54, .45); }
.ca-step legend { float: left; width: 100%; padding: 0; margin-bottom: .75rem; }
.ca-step legend + * { clear: both; }
.ca-q { display: block; font: 600 var(--t-lg)/1.25 var(--font-display); color: var(--ink); outline: none; }
.ca-q small { font: 400 var(--t-sm) var(--font); color: var(--muted); }
.ca-help { color: var(--muted); font-size: var(--t-sm); margin: 0 0 1rem; }
.ca-sub { font-size: var(--t-base); margin: 1.5rem 0 .75rem; }
.ca-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); gap: .75rem; }
.ca-cards-sm { grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr)); }
.ca-cards-row { grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr)); }
.ca-card { position: relative; display: block; cursor: pointer; }
.ca-card input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.ca-card > span { display: flex; flex-direction: column; gap: .25rem; height: 100%; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: 10px; background: var(--white); transition: border-color .15s, box-shadow .15s, transform .15s; }
.ca-card b { font-size: var(--t-sm); color: var(--ink); line-height: 1.3; }
.ca-card small { font-size: var(--t-xs); color: var(--muted); line-height: 1.4; }
.ca-card:hover > span { border-color: var(--steel); transform: translateY(-1px); }
.ca-card input:checked + span { border-color: var(--teal); box-shadow: inset 0 0 0 1px var(--teal), 0 8px 20px -14px rgba(14, 124, 123, .7); background: linear-gradient(180deg, var(--teal-wash), var(--white)); }
.ca-card input:checked + span b::after { content: " \2713"; color: var(--teal-dark); }
.ca-card input:focus-visible + span { box-shadow: var(--focus); }
.ca-sugg { font-style: normal; align-self: flex-start; margin-top: .3rem; font-size: .7rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--teal-dark); background: var(--teal-wash); padding: .15rem .45rem; border-radius: 999px; }
.ca-chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.ca-chip { position: relative; cursor: pointer; }
.ca-chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.ca-chip span { display: inline-flex; align-items: center; min-height: 44px; padding: .5rem 1rem; border-radius: 999px; border: 1px solid var(--line); background: var(--white); font-size: var(--t-sm); font-weight: 500; }
.ca-chip input:checked + span { background: var(--night-2); border-color: var(--night-2); color: var(--white); }
.ca-chip input:focus-visible + span { box-shadow: var(--focus); }
/* zone condition mini-diagrams */
.ca-zviz { display: block; height: 34px; margin-bottom: .4rem; border-radius: 6px; background-color: var(--surface); background-repeat: no-repeat; }
.ca-zone-z0 .ca-zviz { background-image: radial-gradient(circle, var(--steel) 3px, transparent 4px); background-size: 18px 17px; background-repeat: repeat; }
.ca-zone-z1 .ca-zviz { background-image: linear-gradient(90deg, transparent 30%, #b3261e 30%, #b3261e 32%, transparent 32%), radial-gradient(circle, var(--steel) 3px, transparent 4px); background-size: 100% 100%, 18px 17px; background-repeat: no-repeat, repeat; }
.ca-zone-z2 .ca-zviz { background-image: linear-gradient(90deg, rgba(14,124,123,.18) 0 30%, transparent 30% 34%, rgba(14,124,123,.18) 34% 62%, transparent 62% 66%, rgba(14,124,123,.08) 66%); }
.ca-zone-z3 .ca-zviz { background-image: linear-gradient(90deg, rgba(36,99,235,.18) 0 22%, transparent 22% 25%, rgba(217,119,6,.22) 25% 46%, transparent 46% 49%, rgba(14,124,123,.22) 49% 72%, transparent 72% 75%, rgba(179,38,30,.22) 75%); }
.ca-zone-z4 .ca-zviz { background-image: linear-gradient(90deg, rgba(36,99,235,.22) 0 22%, var(--cyan) 22% 25%, rgba(217,119,6,.26) 25% 46%, var(--cyan) 46% 49%, rgba(14,124,123,.26) 49% 72%, var(--cyan) 72% 75%, rgba(179,38,30,.26) 75%); }
.ca-zone-zu .ca-zviz { background-image: repeating-linear-gradient(135deg, transparent 0 8px, rgba(75,96,115,.15) 8px 10px); }
.ca-nav { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 1.25rem; flex-wrap: wrap; }
.ca-nav [data-pnext] { margin-left: auto; }
.ca-nav [data-pprev][hidden] + .qc-status { margin-left: 0; }
/* plan */
.ca-plan { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 1.5rem; scroll-margin-top: 6rem; }
.ca-plan-main, .ca-plan-side { border: 1px solid var(--line); border-radius: 14px; background: var(--card); padding: clamp(1.25rem, 3vw, 2rem); box-shadow: 0 10px 30px -22px rgba(11, 29, 54, .45); }
.ca-plan-main h2 { margin-top: 0; }
.ca-domlist { list-style: none; padding: 0; margin: 1.25rem 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); gap: .5rem; }
.ca-domlist li { margin: 0; display: flex; justify-content: space-between; align-items: center; padding: .6rem .8rem; border-radius: 8px; background: var(--surface); font-size: var(--t-sm); }
.ca-domlist b { min-width: 1.8rem; height: 1.8rem; border-radius: 50%; display: grid; place-items: center; background: var(--night-2); color: var(--cyan); font-size: var(--t-xs); }
.ca-note { padding: .75rem 1rem; border-left: 3px solid var(--teal); background: var(--teal-wash); border-radius: 0 8px 8px 0; font-size: var(--t-sm); }
.ca-plan-side h3 { margin-top: 0; }
.ca-dl { margin: 0 0 1rem; display: grid; gap: .5rem; font-size: var(--t-sm); }
.ca-dl div { display: grid; grid-template-columns: 8rem 1fr; gap: .5rem; padding-bottom: .5rem; border-bottom: 1px solid var(--line-soft); }
.ca-dl dt { color: var(--muted); }
.ca-dl dd { margin: 0; font-weight: 500; }
.ca-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem; }
.ca-tag { font-size: var(--t-xs); font-weight: 600; padding: .3rem .6rem; border-radius: 999px; background: var(--night-2); color: var(--cyan); }
.ca-cx { display: grid; grid-template-columns: 1fr auto; gap: .4rem 1rem; font-size: var(--t-sm); align-items: center; }
.ca-cx .qc-bar { grid-column: 1 / -1; }
.ca-cx small { color: var(--muted); }
@media (max-width: 860px) { .ca-plan { grid-template-columns: 1fr; } }
.ca-refs { margin-top: .75rem; font-size: var(--t-xs); color: var(--muted); }
.ca-refs summary { cursor: pointer; color: var(--teal-dark); font-weight: 600; }
.ca-refs ul { margin: .5rem 0 0; padding-left: 1.1rem; }
/* results */
#ca-results { scroll-margin-top: 6rem; }
.ca-meta { font-size: var(--t-sm); color: var(--muted); }
.ca-unk { font-size: var(--t-sm); color: var(--amber); }
.ca-res-grid { margin-top: 2rem; align-items: start; }
.ca-res-grid h3 small, .ca-sec h3 small { font-weight: 400; color: var(--muted); font-size: var(--t-sm); }
.ca-fw { display: grid; gap: .75rem; }
.ca-fwcard { border: 1px solid var(--line); border-radius: 10px; background: var(--card); padding: 1rem 1.1rem; display: grid; gap: .45rem; }
.ca-fwtop { display: flex; justify-content: space-between; font-size: var(--t-sm); }
.ca-fwtop span { font-weight: 700; font-variant-numeric: tabular-nums; }
.ca-fwcard small { color: var(--muted); font-size: var(--t-xs); }
.ca-fwcard details { font-size: var(--t-xs); }
.ca-fwcard summary { cursor: pointer; color: var(--teal-dark); font-weight: 600; }
.ca-fwcard ul { margin: .4rem 0 0; padding-left: 1.1rem; }
.ca-sec { margin-top: 2.5rem; }
.ca-sec h4 { margin: 0 0 .4rem; font-size: var(--t-base); }
.ca-links { font-size: var(--t-sm); margin-bottom: 0; }
.ca-unklist { columns: 2 320px; font-size: var(--t-sm); color: var(--steel); }
.ca-unklist li { break-inside: avoid; margin-bottom: .5rem; }
.ca-rec ol { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: .75rem; counter-reset: r; }
.ca-rec li { counter-increment: r; margin: 0; padding: 1.1rem 1.2rem 1.1rem 3.2rem; position: relative; border-radius: 12px; background: linear-gradient(180deg, var(--night-2), var(--night)); color: #b5c6d6; font-size: var(--t-sm); display: grid; gap: .3rem; }
.ca-rec li::before { content: counter(r); position: absolute; left: 1rem; top: 1rem; width: 1.6rem; height: 1.6rem; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--cyan); color: var(--cyan); font-weight: 700; font-size: var(--t-xs); }
.ca-rec li a { color: var(--white); text-decoration: none; }
.ca-rec li a:hover { text-decoration: underline; }
.ca-plat { margin-top: 1rem; font-size: var(--t-sm); }
.ca-actions { margin-top: 2rem; }

@media print {
  .site-header, .site-footer, .page-head, .cta-band, .to-top, .ca-actions, .skip-link, section[aria-labelledby="faq-h"], .pager-section { display: none !important; }
  body, main { background: #fff !important; }
  .section { padding: 0 !important; }
  .qc-result-head, .ca-fwcard, .qc-priority, .ca-rec li { break-inside: avoid; box-shadow: none !important; }
  .ca-rec li { background: #fff !important; color: #000 !important; border: 1px solid #999; }
  .ca-rec li a { color: #000 !important; }
  .ca-fwcard details, .ca-refs { display: block; }
  .ca-fwcard details > *:not(summary) { display: block; }
  a[href]::after { content: none; }
}

/* device click targets in architectures */
.arch-svg .dev-hit { cursor: pointer; outline: none; }
.arch-svg .dev-hit rect { fill: transparent; stroke: transparent; stroke-width: 1.5; transition: fill .15s, stroke .15s; }
.arch-svg .dev-hit:hover rect { fill: rgba(46,230,214,.10); stroke: rgba(46,230,214,.75); }
.arch-svg .dev-hit:focus-visible rect, .arch-svg .dev-hit.is-selected rect { fill: rgba(46,230,214,.16); stroke: var(--cyan); stroke-width: 2; }
.arch-sheet .dv-zone { color: var(--cyan); font-size: .85rem; margin: -.25rem 0 .5rem; }
.arch-sheet .dv-cols { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 760px) { .arch-sheet .dv-cols { grid-template-columns: 1fr; } }
.arch-fig { margin: 0; }

/* ---------------------------------------------------------------- cookie consent */
.cookie-banner { position: fixed; z-index: 90; left: 1rem; right: 1rem; bottom: 1rem; max-width: 980px; margin: 0 auto; border-radius: 14px; background: var(--night-2); color: #c9d6e2; border: 1px solid var(--glass-line); box-shadow: 0 30px 60px -20px rgba(0,0,0,.6); }
.cookie-inner { display: flex; gap: 1.25rem 2rem; align-items: center; justify-content: space-between; padding: 1.1rem 1.4rem; flex-wrap: wrap; }
.cookie-banner h2 { color: var(--white); font-size: var(--t-base); margin: 0 0 .25rem; }
.cookie-banner p { margin: 0; font-size: var(--t-sm); max-width: 62ch; }
.cookie-banner a { color: var(--cyan); }
.cookie-btns { display: flex; gap: .6rem; flex-shrink: 0; }
.cookie-btns .btn { min-width: 9rem; justify-content: center; }
.link-btn { background: none; border: 0; padding: 0; color: inherit; font: inherit; text-decoration: underline; cursor: pointer; }
@media (max-width: 600px) { .cookie-btns { width: 100%; } .cookie-btns .btn { flex: 1; min-width: 0; } }
@media print { .cookie-banner { display: none !important; } }