/* =========================================================================
   Cyberplane — cyberplane.ai · styles.css
   tokens → base → layout → components → sections → print → utilities
   Dark is the default theme. Light applies with [data-theme="light"] (set by
   the theme toggle or the visitor's system setting) or, without JavaScript,
   through prefers-color-scheme. Light tokens live in src/css/tokens-light.css.
   ========================================================================= */

/* ---------- fonts (self-hosted, SIL Open Font License 1.1) ---------- */
@font-face {
  font-family: "Manrope";
  src: url("../assets/fonts/manrope-latin-wght-normal.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("../assets/fonts/inter-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ---------- tokens ---------- */
:root {
  --font-display: "Manrope", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* brand (from the Cyberplane logo) */
  --brand-blue: #007abb;
  --brand-red: #e31e24;
  --brand-ink: #201b24;

  --container: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --section-pad: clamp(64px, 8vw, 112px);
  --header-h: 72px;
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  /* type scale */
  --fs-h1: clamp(2.6rem, 1.45rem + 4.4vw, 4.5rem);
  --fs-h1-page: clamp(2.35rem, 1.5rem + 3.3vw, 3.8rem);
  --fs-h2: clamp(1.95rem, 1.4rem + 2.1vw, 2.9rem);
  --fs-h3: 1.175rem;
  --fs-lead: clamp(1.07rem, 1rem + .32vw, 1.25rem);
  --fs-xs: .75rem;
  --fs-sm: .875rem;
  --fs-md: .9375rem;
  --ease: cubic-bezier(.2, .7, .2, 1);

  /* dark theme (default) — CyberPlane – Dark, as in the Circuit console (mock 6.5): the logo's ink as the night */
  color-scheme: dark;
  --bg: #121016;
  --bg-alt: #16131b;
  --surface: #1a1720;
  --surface-2: #201c27;
  --surface-3: #27222f;
  --surface-glass: rgba(26, 23, 32, .76);
  --border: #2a2531;
  --border-strong: #3b3544;
  --input-border: #7a7287;
  --text: #f2eff5;
  --text-muted: #bfb8c9;
  --text-subtle: #a39bb0;
  --accent: #5aaef0;
  --accent-strong: #1673c3;
  --accent-strong-hover: #0f66ad;
  --accent-soft: rgba(46, 151, 232, .14);
  --accent-line: rgba(46, 151, 232, .34);
  --ai: #c4a3f5;
  --ai-soft: rgba(196, 163, 245, .13);
  --ai-line: rgba(196, 163, 245, .4);
  --danger: #ff5c63;
  --danger-soft: rgba(255, 92, 99, .13);
  --ok: #5ad27a;
  --ok-soft: rgba(90, 210, 122, .13);
  --warn: #f4bb43;
  --warn-soft: rgba(244, 187, 67, .13);
  --split-red: #f0262d;
  --split-blue: #2e97e8;
  --grid-line: rgba(170, 150, 200, .07);
  --glow-blue: rgba(46, 151, 232, .26);
  --glow-red: rgba(227, 30, 36, .12);
  --card-glow: .55;
  --mark-glow: .08;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .45);
  --shadow-md: 0 14px 34px -16px rgba(0, 0, 0, .7);
  --shadow-lg: 0 40px 90px -30px rgba(0, 0, 0, .85);
  --header-bg: rgba(18, 16, 22, .78);
  --backdrop: rgba(0, 0, 0, .55);
  --selection: rgba(46, 151, 232, .35);
}

:root[data-theme="light"] {
  color-scheme: light;
    --bg: #ffffff;
    --bg-alt: #f7f6f9;
    --surface: #ffffff;
    --surface-2: #faf9fb;
    --surface-3: #f3f2f5;
    --surface-glass: rgba(255, 255, 255, .86);
    --border: #e5e3e8;
    --border-strong: #d3d0d8;
    --input-border: #8a8593;
    --text: #201b24;
    --text-muted: #4f4a57;
    --text-subtle: #635d6b;
    --accent: #0069a7;
    --accent-strong: #007abb;
    --accent-strong-hover: #006ba5;
    --accent-soft: rgba(0, 122, 187, .09);
    --accent-line: rgba(0, 122, 187, .3);
    --ai: #6a43ad;
    --ai-soft: rgba(119, 76, 188, .09);
    --ai-line: rgba(119, 76, 188, .32);
    --danger: #b42a2e;
    --danger-soft: rgba(204, 51, 54, .08);
    --ok: #1b622d;
    --ok-soft: rgba(41, 138, 65, .09);
    --warn: #764f00;
    --warn-soft: rgba(189, 130, 0, .10);
    --split-red: #e31e24;
    --split-blue: #007abb;
    --grid-line: rgba(32, 27, 36, .055);
    --glow-blue: rgba(0, 122, 187, .10);
    --glow-red: rgba(227, 30, 36, .035);
    --card-glow: .22;
    --mark-glow: .05;
    --shadow-sm: 0 1px 3px rgba(32, 27, 36, .08);
    --shadow-md: 0 16px 40px -18px rgba(32, 27, 36, .2);
    --shadow-lg: 0 40px 80px -32px rgba(32, 27, 36, .28);
    --header-bg: rgba(255, 255, 255, .88);
    --backdrop: rgba(32, 27, 36, .40);
    --selection: rgba(0, 122, 187, .2);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;
    --bg: #ffffff;
    --bg-alt: #f7f6f9;
    --surface: #ffffff;
    --surface-2: #faf9fb;
    --surface-3: #f3f2f5;
    --surface-glass: rgba(255, 255, 255, .86);
    --border: #e5e3e8;
    --border-strong: #d3d0d8;
    --input-border: #8a8593;
    --text: #201b24;
    --text-muted: #4f4a57;
    --text-subtle: #635d6b;
    --accent: #0069a7;
    --accent-strong: #007abb;
    --accent-strong-hover: #006ba5;
    --accent-soft: rgba(0, 122, 187, .09);
    --accent-line: rgba(0, 122, 187, .3);
    --ai: #6a43ad;
    --ai-soft: rgba(119, 76, 188, .09);
    --ai-line: rgba(119, 76, 188, .32);
    --danger: #b42a2e;
    --danger-soft: rgba(204, 51, 54, .08);
    --ok: #1b622d;
    --ok-soft: rgba(41, 138, 65, .09);
    --warn: #764f00;
    --warn-soft: rgba(189, 130, 0, .10);
    --split-red: #e31e24;
    --split-blue: #007abb;
    --grid-line: rgba(32, 27, 36, .055);
    --glow-blue: rgba(0, 122, 187, .10);
    --glow-red: rgba(227, 30, 36, .035);
    --card-glow: .22;
    --mark-glow: .05;
    --shadow-sm: 0 1px 3px rgba(32, 27, 36, .08);
    --shadow-md: 0 16px 40px -18px rgba(32, 27, 36, .2);
    --shadow-lg: 0 40px 80px -32px rgba(32, 27, 36, .28);
    --header-bg: rgba(255, 255, 255, .88);
    --backdrop: rgba(32, 27, 36, .40);
    --selection: rgba(0, 122, 187, .2);
  }
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
::selection { background: var(--selection); }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3 {
  margin: 0;
  font-family: var(--font-display);
  color: var(--text);
  font-weight: 760;
  line-height: 1.12;
  letter-spacing: -.026em;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); font-weight: 800; line-height: 1.03; letter-spacing: -.038em; }
h2 { font-size: var(--fs-h2); letter-spacing: -.032em; line-height: 1.08; }
h3 { font-size: var(--fs-h3); font-weight: 720; line-height: 1.3; letter-spacing: -.016em; }
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
strong { font-weight: 650; color: var(--text); }
main p a:not([class]) { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
button { font: inherit; color: inherit; }
code { font-family: var(--font-mono); font-size: .92em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.icon { width: 20px; height: 20px; flex: none; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
html.theme-switching *, html.theme-switching *::before, html.theme-switching *::after { transition: none !important; }

/* shared small uppercase label */
.overline, .strip-label, .cp-label, .scenario-head, .sol-card .tag, .deploy-card .tag, .solution h3.mini,
.fit-head, .fit-row .col-label, .footer-col h2, .ttvi-head, .stage .comp {
  color: var(--text-subtle);
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* ---------- layout ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { position: relative; padding-block: var(--section-pad); }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 860px) { .grid-3 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 680px) { .grid-2 { grid-template-columns: minmax(0, 1fr); } }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent-strong);
  color: #fff;
  font-weight: 600;
}
.skip-link:focus { top: 12px; text-decoration: none; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid transparent;
  transition: background-color .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled,
.site-header.is-open {
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(170%) blur(16px);
  backdrop-filter: saturate(170%) blur(16px);
  border-bottom-color: var(--border);
}
.header-inner { position: relative; z-index: 2; display: flex; align-items: center; gap: 16px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; flex: none; border-radius: 8px; color: var(--text); }
.brand img { height: 40px; width: auto; }
.brand .cp-logo { display: block; height: 34px; width: auto; overflow: visible; }
.brand:hover { text-decoration: none; }

/* logo per theme: the dark-theme logo shows by default */
.logo-light { display: none !important; }
:root[data-theme="light"] .logo-light { display: block !important; }
:root[data-theme="light"] .logo-dark { display: none !important; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .logo-light { display: block !important; }
  :root:not([data-theme]) .logo-dark { display: none !important; }
}

.nav { margin-left: auto; display: flex; align-items: center; }
.nav-links { display: flex; gap: 2px; list-style: none; }
.nav-links a {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-muted);
  font-size: .95rem;
  font-weight: 540;
  transition: color .2s, background-color .2s;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--text); background: var(--surface-2); }
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: 10px; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color .2s, background-color .2s, border-color .2s;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); background: var(--surface-2); }
.icon-btn .icon { width: 18px; height: 18px; }
.icon-btn--sm { width: 32px; height: 32px; }
.icon-btn--sm .icon { width: 15px; height: 15px; }

/* theme toggle: show the theme you'll switch to */
.theme-toggle .i-moon { display: none; }
:root[data-theme="light"] .theme-toggle .i-sun { display: none; }
:root[data-theme="light"] .theme-toggle .i-moon { display: block; }

.menu-toggle { display: none; }
.menu-toggle .i-close { display: none; }
.menu-toggle[aria-expanded="true"] .i-open { display: none; }
.menu-toggle[aria-expanded="true"] .i-close { display: block; }

.mobile-menu {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 12px var(--gutter) 24px;
  max-height: calc(100vh - var(--header-h));
  max-height: calc(100dvh - var(--header-h));
  overflow-y: auto;
}
.mobile-menu ul { list-style: none; display: grid; gap: 2px; }
.mobile-menu a:not(.btn) {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 650;
}
.mobile-menu a:not(.btn) .icon { color: var(--text-subtle); width: 18px; height: 18px; }
.mobile-menu a[aria-current="page"] { color: var(--accent); }
.mobile-menu a:hover { text-decoration: none; }
.mobile-menu .btn { width: 100%; margin-top: 20px; }
.menu-backdrop { position: fixed; inset: 0; z-index: 59; background: var(--backdrop); }
.menu-backdrop[hidden] { display: none; }

@media (max-width: 920px) {
  .nav-links, .header-actions .btn { display: none; }
  .menu-toggle { display: inline-grid; }
}
@media (min-width: 921px) { .mobile-menu, .menu-backdrop { display: none !important; } }

/* without JavaScript: hide controls that need it and keep the navigation reachable */
html:not(.js) :is(.menu-toggle, .theme-toggle, .play-toggle, .path-steps) { display: none !important; }
@media (max-width: 920px) {
  html:not(.js) .nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; }
  html:not(.js) .header-inner { height: auto; min-height: var(--header-h); flex-wrap: wrap; padding-block: 10px; }
}

/* ---------- buttons ---------- */
.btn {
  --btn-h: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: var(--btn-h);
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none !important;
  transition: background-color .2s, border-color .2s, color .2s, box-shadow .2s, transform .15s;
}
.btn:active { transform: translateY(1px); }
.btn .icon { width: 18px; height: 18px; transition: transform .2s var(--ease); }
.btn:hover .icon-arrow { transform: translateX(3px); }
.btn--primary {
  background: var(--accent-strong);
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .18), 0 10px 26px -12px rgba(0, 122, 187, .8);
}
.btn--primary:hover { background: var(--accent-strong-hover); }
.btn--ghost, .btn--primary[aria-current="page"] { background: transparent; color: var(--text); border-color: var(--border-strong); box-shadow: none; }
.btn--ghost:hover, .btn--primary[aria-current="page"]:hover { background: var(--surface-2); }
.btn--lg { --btn-h: 52px; padding: 0 26px; font-size: 1rem; }
.btn--sm { --btn-h: 38px; padding: 0 16px; font-size: .9rem; }
@media (max-width: 480px) { .hero-ctas .btn, .cta-actions .btn { flex: 1 1 100%; } }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--accent);
}
.link-arrow .icon { width: 17px; height: 17px; transition: transform .2s var(--ease); }
.link-arrow:hover { text-decoration: none; }
.link-arrow:hover .icon { transform: translateX(3px); }

/* ---------- kicker (the logo's split mark as a motif) ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.kicker::before {
  content: "";
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 85% 14% 85% 14%;
  background: linear-gradient(135deg, var(--brand-red) 0 43%, transparent 43% 57%, var(--brand-blue) 57% 100%);
}

/* ---------- section heads ---------- */
.section-head { max-width: 780px; margin-bottom: clamp(40px, 5vw, 64px); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head .kicker { margin-bottom: 18px; }
.section-head > p { margin-top: 18px; color: var(--text-muted); font-size: var(--fs-lead); }
.lead { color: var(--text-muted); font-size: var(--fs-lead); }

/* ---------- cards ---------- */
.card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover { border-color: var(--border-strong); }
.card h3 { margin-top: 18px; }
.card p { margin-top: 10px; color: var(--text-muted); }
/* link cards: whole card clickable through the heading link; lift + spotlight only here */
.card--link { display: flex; flex-direction: column; }
.card--link::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), var(--accent-soft), transparent 45%);
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.card--link:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card--link:hover::before { opacity: 1; }
.card--link h3 a { color: inherit; }
.card--link h3 a::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.card--link h3 a:hover { text-decoration: none; }
.card--link:focus-within { border-color: var(--accent-line); }
.card--link .link-arrow { margin-top: auto; padding-top: 22px; }
.card--link:hover .link-arrow .icon { transform: translateX(3px); }

.icon-tile {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
}
.icon-tile .icon { width: 22px; height: 22px; }
.icon-tile--danger { color: var(--danger); background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 30%, transparent); }
.icon-tile--ok { color: var(--ok); background: var(--ok-soft); border-color: color-mix(in srgb, var(--ok) 30%, transparent); }
.icon-tile--warn { color: var(--warn); background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }

/* ---------- chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: .85rem;
  font-weight: 520;
  line-height: 1.3;
}
.chip .icon { width: 15px; height: 15px; color: var(--accent); }
.chip--accent { color: var(--text); border-color: var(--accent-line); background: var(--accent-soft); }
a.chip--link { border-color: var(--accent-line); color: var(--text); transition: background-color .2s, border-color .2s; }
a.chip--link:hover { text-decoration: none; background: var(--accent-soft); border-color: var(--accent); }
a.chip--link .icon-arrow { color: var(--accent); transition: transform .2s var(--ease); }
a.chip--link:hover .icon-arrow { transform: translateX(2px); }
.chip--strike {
  color: var(--text-muted);
  text-decoration: line-through;
  text-decoration-color: var(--brand-red);
  text-decoration-thickness: 1.5px;
}

/* ---------- backgrounds: runs under the transparent header, fades out at the bottom ---------- */
.hero, .page-hero { margin-top: calc(-1 * var(--header-h)); }
.bg-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, #000 0, #000 72%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0, #000 72%, transparent 100%);
}
.bg-grid::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
  -webkit-mask-image: radial-gradient(ellipse 70% 65% at 62% 22%, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 70% 65% at 62% 22%, #000 25%, transparent 78%);
}
.bg-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(42% 46% at 78% 10%, var(--glow-blue), transparent 70%),
    radial-gradient(34% 40% at 6% 70%, var(--glow-red), transparent 72%);
}

/* ---------- hero (home) ---------- */
.hero { position: relative; isolation: isolate; padding-block: calc(var(--header-h) + clamp(32px, 5vw, 80px)) clamp(64px, 8vw, 112px); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero-copy { container-type: inline-size; }
.hero h1 { margin-top: 22px; font-size: var(--fs-h1); }
@supports (font-size: 1cqi) { .hero h1 { font-size: min(var(--fs-h1), 12cqi); } }
.hero h1 .line { display: block; }
.hero .lead { margin-top: 24px; max-width: 560px; }
.usp { display: grid; gap: 10px; margin-top: 24px; list-style: none; }
.usp li { display: flex; align-items: center; gap: 12px; color: var(--text); font-weight: 520; }
.usp .icon { width: 30px; height: 30px; padding: 6px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); }
.usp li:nth-child(1) .icon { background: var(--warn-soft); color: var(--warn); }
.usp li:nth-child(3) .icon { background: var(--ok-soft); color: var(--ok); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.stage-note { display: flex; align-items: flex-start; gap: 10px; max-width: 560px; margin-top: 22px; color: var(--text-subtle); font-size: var(--fs-sm); }
.stage-note .icon { width: 17px; height: 17px; margin-top: 2px; color: var(--accent); }
.page-hero .stage-note { margin-top: 18px; max-width: 740px; }
.eyebrow-pill {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 6px 14px 6px 8px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface-glass);
  color: var(--text-muted);
  font-size: .85rem;
  font-weight: 520;
}
.eyebrow-pill:hover { text-decoration: none; color: var(--text); border-color: var(--accent-line); }
.eyebrow-pill .icon { width: 16px; height: 16px; }
.eyebrow-pill .tag {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
@media (max-width: 1100px) and (min-width: 861px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 440px); gap: 36px; }
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-visual { max-width: 600px; }
}

/* split word — the logo's diagonal red/blue break, set in type */
.split { color: var(--split-red); }
@supports (-webkit-background-clip: text) or (background-clip: text) {
  .split {
    background: linear-gradient(128deg, var(--split-red) 0 50%, var(--split-blue) 50% 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
  }
}
@media (forced-colors: active) {
  .split { background: none; color: CanvasText; -webkit-text-fill-color: CanvasText; }
}

/* ---------- hero visual: attack path card ---------- */
.path-card {
  position: relative;
  margin: 0;
  padding: 16px 16px 14px;
  border-radius: var(--radius-xl);
  background: var(--surface-glass);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.path-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(140deg, rgba(227, 30, 36, .35), transparent 30%, transparent 65%, rgba(0, 122, 187, .45));
  filter: blur(18px);
  opacity: var(--card-glow);
}
.path-card__head { display: flex; align-items: center; gap: 10px; padding: 2px 4px 8px; }
.path-card__title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 700;
}
.path-card__title .icon { width: 18px; height: 18px; color: var(--accent); }
.path-card__head .status { margin-left: auto; }
.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 650;
  white-space: nowrap;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  transition: color .4s, background-color .4s, border-color .4s;
}
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.status [data-st] { display: none; }
.path-card[data-step="0"] .status [data-st="0"],
.path-card[data-step="1"] .status [data-st="1"],
.path-card[data-step="2"] .status [data-st="2"],
.path-card[data-step="3"] .status [data-st="3"],
.path-card[data-step="4"] .status [data-st="4"] { display: inline; }
.path-card[data-step="1"] .status { color: var(--danger); background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.path-card[data-step="2"] .status { color: var(--warn); background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.path-card[data-step="4"] .status { color: var(--ok); background: var(--ok-soft); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.play-toggle .i-play, .play-toggle .i-replay { display: none; }
.path-card.is-paused .play-toggle .i-pause { display: none; }
.path-card.is-paused .play-toggle .i-play { display: block; }
.path-card.is-done .play-toggle .i-pause, .path-card.is-done .play-toggle .i-play { display: none; }
.path-card.is-done .play-toggle .i-replay { display: block; }

.path-graph { width: 100%; height: auto; overflow: visible; }
.path-graph--v { display: none; }
@media (max-width: 560px) {
  .path-graph--h { display: none; }
  .path-graph--v { display: block; max-width: 340px; margin-inline: auto; }
  .path-card { padding: 12px 10px 10px; }
}
.path-graph .edge { fill: none; stroke: var(--border-strong); stroke-width: 2; stroke-linecap: round; transition: stroke .5s, opacity .5s; }
.path-graph .flow {
  fill: none;
  stroke: var(--danger);
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-dasharray: 5 9;
  opacity: 0;
  transition: opacity .5s;
}
@keyframes flow { to { stroke-dashoffset: -14; } }
.path-card.has-path:not(.is-cut) .flow { opacity: 1; animation: flow .9s linear infinite; }
.path-card.is-paused .flow, .path-card.is-held .flow { animation-play-state: paused !important; }
.path-card.is-cut .edge.down { stroke-dasharray: 3 6; opacity: .75; }
.path-graph .node-in { transition: opacity .55s var(--ease) calc(var(--i, 0) * 110ms), transform .55s var(--ease) calc(var(--i, 0) * 110ms); }
.path-card.is-empty .node-in { opacity: 0; transform: translateY(6px); }
.path-graph .node-bg { fill: var(--surface-2); stroke: var(--border-strong); stroke-width: 1.5; transition: stroke .5s, fill .5s, opacity .6s; }
.path-graph .node-ring { fill: none; stroke: var(--danger); stroke-width: 2; opacity: 0; transition: opacity .5s, stroke .5s; }
.path-card.has-path .hot .node-ring { opacity: .9; }
.path-card.is-cut .n1 .node-ring { stroke: var(--accent); }
.path-graph .node-ico { color: var(--text-muted); transition: color .5s, opacity .6s; }
.path-card.has-path .hot .node-ico { color: var(--danger); }
.path-card.is-cut .n1 .node-ico { color: var(--accent); }
/* after the cut, dim the downstream shapes — never the text */
.path-card.is-cut .down-node .node-bg, .path-card.is-cut .down-node .node-ico { opacity: .45; }
.path-card.is-cut .down-node .node-ring { opacity: .3; }
.path-graph .lbl { fill: var(--text); font-family: var(--font-body); font-size: 12.5px; font-weight: 620; text-anchor: middle; }
.path-graph .sub { fill: var(--text-subtle); font-family: var(--font-body); font-size: 10.5px; font-weight: 520; text-anchor: middle; transition: opacity .4s; }
.path-graph--v .lbl, .path-graph--v .sub { text-anchor: start; }
.path-graph--v .lbl { font-size: 13.5px; }
.path-graph--v .sub { font-size: 11.5px; }
.path-graph .sub.alt { opacity: 0; }
.path-card.is-cut .n1 .sub.pre { opacity: 0; }
.path-card.is-cut .n1 .sub.alt { opacity: 1; fill: var(--accent); }
.path-graph .e1a, .path-graph .e1b { opacity: 0; transition: opacity .3s, transform .5s var(--ease); }
.path-card.is-cut .e1 { opacity: 0; }
.path-card.is-cut .e1a, .path-card.is-cut .e1b { opacity: 1; }
.path-card.is-cut .path-graph--h .e1a { transform: translateX(-3px); }
.path-card.is-cut .path-graph--h .e1b { transform: translateX(3px); }
.path-card.is-cut .path-graph--v .e1a { transform: translateY(-3px); }
.path-card.is-cut .path-graph--v .e1b { transform: translateY(3px); }
.path-graph .cut { opacity: 0; transition: opacity .35s var(--ease); }
.path-card.is-cut .cut { opacity: 1; }
.path-graph .cut-red { stroke: var(--brand-red); stroke-width: 4.5; }
.path-graph .cut-blue { stroke: var(--brand-blue); stroke-width: 4.5; }
.path-graph .badge { opacity: 0; transition: opacity .45s var(--ease), transform .45s var(--ease); transform: translateY(4px); }
.path-graph .badge rect { stroke-width: 1; }
.path-graph .badge text { font-family: var(--font-body); font-size: 10.5px; font-weight: 650; }
.path-graph .badge-approval rect { fill: var(--warn-soft); stroke: color-mix(in srgb, var(--warn) 45%, transparent); }
.path-graph .badge-approval text, .path-graph .badge-approval .bi { fill: var(--warn); color: var(--warn); }
.path-graph .badge-verified rect { fill: var(--ok-soft); stroke: color-mix(in srgb, var(--ok) 45%, transparent); }
.path-graph .badge-verified text, .path-graph .badge-verified .bi { fill: var(--ok); color: var(--ok); }
.path-card.has-approval:not(.is-verified) .badge-approval,
.path-card.is-verified .badge-verified { opacity: 1; transform: none; }

.cp-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 10px 4px 2px; }
.cp-label { margin-right: 2px; }
.cp-list { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.cp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: .78rem;
  font-weight: 560;
  transition: color .4s, border-color .4s, background-color .4s;
}
.cp .icon { width: 14px; height: 14px; }
.path-card.has-approval .cp--primary { color: var(--text); border-color: var(--accent-line); background: var(--accent-soft); }
.path-card.has-approval .cp--primary .icon { color: var(--accent); }
.cp-tag { visibility: hidden; color: var(--accent); font-weight: 700; }
.path-card.has-approval .cp-tag { visibility: visible; }

.path-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  margin-top: 14px;
  list-style: none;
}
.path-steps button {
  position: relative;
  width: 100%;
  min-height: 32px;
  padding: 12px 4px 4px;
  border: 0;
  background: none;
  color: var(--text-subtle);
  font-size: .76rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border-radius: 6px;
  transition: color .3s;
}
.path-steps button::before {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 2px;
  height: 3px;
  border-radius: 3px;
  background: var(--border-strong);
  transition: background-color .3s;
}
.path-steps button:hover { color: var(--text); }
.path-steps .done button { color: var(--text-muted); }
.path-steps .done button::before { background: var(--accent-line); }
.path-steps button[aria-current="step"] { color: var(--text); }
.path-steps button[aria-current="step"]::before { background: var(--accent); }
.path-card.is-verified .path-steps li:last-child button::before { background: var(--ok); }
.path-caption {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .86rem;
  line-height: 1.45;
}
.path-caption .icon { width: 16px; height: 16px; margin-top: 2px; color: var(--accent); }
.path-caption .caps { display: grid; flex: 1; }
.path-caption .caps > span { grid-area: 1 / 1; visibility: hidden; }
.path-caption .caps > span.is-on { visibility: visible; }
.path-note { margin-top: 8px; padding-inline: 4px; color: var(--text-subtle); font-size: var(--fs-xs); }

/* ---------- integrations strip ---------- */
.strip { border-block: 1px solid var(--border); background: var(--bg-alt); }
.strip-inner { display: flex; align-items: center; gap: 14px 28px; padding-block: 20px; flex-wrap: wrap; }
.strip .chips { flex: 1 1 560px; }

/* ---------- problem ---------- */
.problem-card .num { display: block; margin-top: 22px; color: var(--text-subtle); font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .06em; }
.problem-card h3 { margin-top: 6px; }
.callout {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--accent-line);
  background: linear-gradient(90deg, var(--accent-soft), transparent 70%), var(--surface);
  color: var(--text-muted);
}
.callout strong { color: var(--text); }
.statement {
  max-width: 900px;
  margin: clamp(48px, 6vw, 72px) auto 0;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.02em;
  color: var(--text);
  text-wrap: balance;
}
.statement em { font-style: normal; color: var(--accent); }

/* ---------- why Circuit: bento with illustrative vignettes ---------- */
.bento { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.bento-card { display: flex; flex-direction: column; }
.bento-card .card-top { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: start; }
.bento-card h3 { margin-top: 0; }
.bento-card p { margin-top: 8px; }
.bento-card .card-top { margin-bottom: 22px; }
.bento-card .vignette { margin-top: auto; }
@media (max-width: 860px) { .bento { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 520px) { .bento-card .card-top { grid-template-columns: minmax(0, 1fr); } }
.bento-note { margin-top: 18px; color: var(--text-subtle); font-size: var(--fs-sm); }
.ttvi-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: 28px;
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-strong);
  color: var(--text-muted);
}
.ttvi-line strong { font-family: var(--font-display); font-size: 1.08rem; }

.vignette {
  position: relative;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  font-size: .8rem;
  line-height: 1.5;
}
.section--alt .vignette { background: var(--bg-alt); }
.vignette .icon { width: 14px; height: 14px; }
.vg-head { display: flex; align-items: center; gap: 8px; padding-bottom: 8px; margin-bottom: 8px; border-bottom: 1px solid var(--border); color: var(--text-subtle); font-size: var(--fs-xs); font-weight: 650; letter-spacing: .06em; text-transform: uppercase; }
.vg-head .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.vg-log ol { display: grid; gap: 5px; list-style: none; font-family: var(--font-mono); font-size: .76rem; }
.vg-log li { display: flex; align-items: center; gap: 8px; }
.vg-log li .icon { color: var(--ok); }
.vg-log li.go { color: var(--text); }
.vg-log li.go .icon { color: var(--accent); }
.vg-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.vg-row strong { font-family: var(--font-display); font-size: .9rem; }
.vg-pill { padding: 2px 8px; border-radius: 999px; font-size: .7rem; font-weight: 650; color: var(--ok); background: var(--ok-soft); }
.vg-cmd { display: block; margin-top: 10px; padding: 8px 10px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text); font-size: .76rem; }
.vg-meta { margin-top: 8px; color: var(--text-subtle); font-size: .76rem; }
.vg-btn { display: inline-flex; align-items: center; gap: 8px; margin-top: 10px; padding: 7px 12px; border-radius: 999px; background: var(--accent-strong); color: #fff; font-size: .78rem; font-weight: 600; }
.vg-btn .icon { width: 15px; height: 15px; }
.vg-hash { margin-top: 8px; color: var(--text-subtle); font-family: var(--font-mono); font-size: .72rem; }
.vg-table { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr) minmax(0, .8fr); gap: 6px 12px; align-items: center; }
.vg-table .h { color: var(--text-subtle); font-size: .7rem; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; }
.vg-table .bad { color: var(--danger); font-weight: 600; }
.vg-table .good { display: inline-flex; align-items: center; gap: 5px; color: var(--ok); font-weight: 600; }
.vg-table .row-label { color: var(--text); font-family: var(--font-mono); font-size: .74rem; }
/* v3.0: the evidence log as a ledger (Circuit 1.0 Alpha) — numbered records chained in order, ending in your key's signature */
.vg-ledger ol { display: grid; gap: 7px; list-style: none; font-size: .78rem; }
.vg-ledger li { position: relative; display: grid; grid-template-columns: 22px minmax(0, 1fr) auto; gap: 10px; align-items: center; color: var(--text); }
.vg-ledger li span { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 7px; border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--text-subtle); font-family: var(--font-mono); font-size: .68rem; font-weight: 700; }
.vg-ledger li:not(:last-child)::after { content: ""; position: absolute; left: 10px; top: 22px; height: 7px; border-left: 1.5px dotted var(--border-strong); }
.vg-ledger li code { color: var(--text-subtle); font-family: var(--font-mono); font-size: .72rem; }
.vg-ledger li.more { color: var(--text-subtle); }
.vg-ledger li.more span { border-style: dashed; background: transparent; }
.vg-foot { display: flex; align-items: center; gap: 8px; margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--border); color: var(--ok); font-weight: 600; }

/* ---------- loop ---------- */
.loop { position: relative; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 14px; list-style: none; }
.loop::before {
  content: "";
  position: absolute;
  top: 25px;
  left: calc(100% / 14);
  right: calc(100% / 14);
  height: 2px;
  background: linear-gradient(90deg, var(--accent-line), var(--accent) 55%, var(--ok));
  opacity: .7;
}
.loop-step { position: relative; text-align: center; }
.loop-node {
  position: relative;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-inline: auto;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--accent-line);
  color: var(--accent);
  box-shadow: 0 0 0 6px var(--bg);
}
.section--alt .loop-node { box-shadow: 0 0 0 6px var(--bg-alt); }
.loop-node .icon { width: 22px; height: 22px; }
.loop-step--human .loop-node { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); }
.loop-step--verify .loop-node { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }
.loop-num { display: block; margin-top: 16px; color: var(--text-subtle); font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .06em; }
.loop-step h3 { margin-top: 4px; font-size: 1.05rem; }
.loop-step p { margin-top: 6px; color: var(--text-muted); font-size: .88rem; line-height: 1.5; }
.loop-evidence {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 40px;
  padding: 18px 22px;
  border-radius: var(--radius);
  border: 1px dashed var(--border-strong);
  background: var(--surface);
  color: var(--text-muted);
}
@media (max-width: 1080px) {
  .loop { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .loop::before { top: 26px; bottom: 26px; left: 25px; right: auto; width: 2px; height: auto; background: linear-gradient(180deg, var(--accent-line), var(--accent) 55%, var(--ok)); }
  .loop-step { display: grid; grid-template-columns: 52px minmax(0, 1fr); column-gap: 18px; text-align: left; padding-bottom: 22px; }
  .loop-node { grid-row: span 3; margin: 0; }
  .loop-num { margin-top: 4px; }
  .loop-step p { max-width: 560px; }
}

/* solution preview cards */
.sol-card .tag { display: inline-block; margin-top: 18px; }
.sol-card h3 { margin-top: 6px; font-size: 1.3rem; }
.sol-card .tag.now { color: var(--accent); }

/* ---------- home platform (mesh) ---------- */
.mesh-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(36px, 5vw, 72px); align-items: center; }
.mesh-grid h2 { margin-top: 18px; }
.mesh-grid .lead { margin-top: 18px; }
.mesh-grid .chips { margin-top: 26px; }
.mesh-grid .link-arrow { margin-top: 28px; }
@media (max-width: 960px) { .mesh-grid { grid-template-columns: minmax(0, 1fr); } }

.zones { display: grid; gap: 0; }
.zone {
  position: relative;
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  background: var(--surface);
}
.zone-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 700;
}
.zone-label .icon { width: 18px; height: 18px; color: var(--accent); }
.zone-label small { margin-left: auto; color: var(--text-subtle); font-family: var(--font-body); font-size: var(--fs-xs); font-weight: 650; letter-spacing: .08em; text-transform: uppercase; }
.zone--yours, .arch-zone--edge { border-color: color-mix(in srgb, var(--ok) 40%, var(--border-strong)); }
.zone--yours .zone-label .icon, .arch-zone--edge .arch-zone-label .icon { color: var(--ok); }
.zone--controls, .arch-zone--controls { border-style: dashed; background: transparent; }
.zone-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-subtle);
  font-size: .8rem;
  font-weight: 600;
  text-align: center;
}
.zone-link::before, .zone-link::after { content: ""; width: 2px; height: 12px; background: var(--border-strong); }
.zone-link span { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg-alt); }
.zone-link .icon { width: 14px; height: 14px; color: var(--accent); }

/* ---------- CTA band ---------- */
.cta-band { padding-block: clamp(56px, 7vw, 96px); }
.section:not(.section--alt) + .cta-band { padding-top: 0; }
.cta-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 28px 48px;
  align-items: center;
  padding: clamp(32px, 5vw, 64px);
  border-radius: 28px;
  border: 1px solid var(--border-strong);
  background:
    radial-gradient(60% 120% at 100% 0%, var(--glow-blue), transparent 60%),
    radial-gradient(50% 120% at 0% 100%, var(--glow-red), transparent 62%),
    var(--surface);
}
.cta-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -90px;
  z-index: -1;
  width: 320px;
  height: 320px;
  border-radius: 85% 14% 85% 14%;
  background: linear-gradient(135deg, var(--brand-red) 0 43%, transparent 43% 57%, var(--brand-blue) 57% 100%);
  opacity: var(--mark-glow);
}
.cta-card h2 { font-size: clamp(1.85rem, 1.3rem + 2vw, 2.7rem); }
.cta-card p { margin-top: 14px; color: var(--text-muted); font-size: var(--fs-lead); max-width: 620px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 860px) { .cta-card { grid-template-columns: minmax(0, 1fr); } .cta-card::after { width: 200px; height: 200px; right: -50px; bottom: -70px; } }

/* ---------- inner page hero ---------- */
.page-hero { position: relative; isolation: isolate; padding-block: calc(var(--header-h) + clamp(48px, 7vw, 104px)) clamp(40px, 6vw, 72px); }
.page-hero h1 { max-width: 920px; margin-top: 20px; font-size: var(--fs-h1-page); line-height: 1.05; }
.page-hero .lead { max-width: 740px; margin-top: 22px; }
.page-hero .hero-ctas { margin-top: 30px; }
.page-hero--compact { padding-bottom: clamp(16px, 3vw, 32px); }
.page-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; list-style: none; }
.page-nav a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface-glass);
  color: var(--text-muted);
  font-size: .88rem;
  font-weight: 560;
}
.page-nav a:hover { color: var(--text); border-color: var(--accent-line); text-decoration: none; }
.page-nav .icon { width: 15px; height: 15px; color: var(--accent); }

/* ---------- platform: stages ---------- */
.stages { display: grid; gap: 14px; list-style: none; }
.stage {
  display: grid;
  grid-template-columns: 56px minmax(0, 230px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
}
.stage .loop-node { width: 48px; height: 48px; margin: 0; box-shadow: none; }
.stage .loop-num { margin-top: 2px; }
.stage h3 { margin-top: 2px; font-size: 1.15rem; }
.stage .comp { display: block; margin-top: 6px; color: var(--accent); letter-spacing: .06em; }
.stage p { color: var(--text-muted); }
.stage--evidence { border-style: dashed; }
@media (max-width: 760px) {
  .stage { grid-template-columns: 48px minmax(0, 1fr); gap: 6px 16px; padding: 20px; }
  .stage p { grid-column: 2; }
}

/* ---------- platform: architecture ---------- */
.arch { display: grid; gap: 0; }
.arch-zone { position: relative; padding: 22px; border-radius: 22px; border: 1px solid var(--border-strong); background: var(--surface); }
.arch-zone-label { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 10px; margin-bottom: 14px; }
.arch-zone-label strong { font-family: var(--font-display); font-size: 1.02rem; }
.arch-zone-label .icon { width: 18px; height: 18px; color: var(--accent); }
.arch-zone-label span { color: var(--text-subtle); font-size: .85rem; }
.arch-layers { display: grid; gap: 10px; }
.arch-layer {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
}
.arch-layer__name { color: var(--text); font-weight: 650; font-size: .95rem; }
.arch-layer__name small { display: block; margin-top: 2px; color: var(--text-subtle); font-weight: 500; font-size: .8rem; }
.arch-layer--core { border-color: var(--accent-line); background: linear-gradient(90deg, var(--accent-soft), transparent 70%), var(--surface-2); }
.arch-layer .chip { background: var(--surface); }
.arch-layer--core .chip { color: var(--text); }
@media (max-width: 760px) {
  .arch-layer { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .arch-zone { padding: 16px; }
}

/* principles */
.principle .std { display: block; margin-top: 14px; color: var(--text-subtle); font-family: var(--font-mono); font-size: var(--fs-xs); }

/* trust */
.trust-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.trust-grid .section-head { margin-bottom: 0; position: sticky; top: calc(var(--header-h) + 32px); }
.trust-list { display: grid; gap: 14px; list-style: none; }
.trust-item { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; padding: 22px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface); }
.trust-item p { margin-top: 6px; color: var(--text-muted); }
@media (max-width: 960px) { .trust-grid { grid-template-columns: minmax(0, 1fr); } .trust-grid .section-head { position: static; } }

/* connector contract */
.contract { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; list-style: none; counter-reset: c; }
.contract li {
  position: relative;
  padding: 18px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}
.contract li::before { counter-increment: c; content: "0" counter(c); display: block; color: var(--text-subtle); font-family: var(--font-mono); font-size: var(--fs-xs); }
.contract strong { display: block; margin-top: 6px; font-family: var(--font-display); font-size: 1.05rem; }
.contract span { display: block; margin-top: 6px; color: var(--text-muted); font-size: .86rem; line-height: 1.5; }
.contract li.write { border-color: color-mix(in srgb, var(--warn) 35%, var(--border)); }
@media (max-width: 1080px) { .contract { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 600px) { .contract { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.first-connectors { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-top: 28px; color: var(--text-muted); font-size: .92rem; }

/* deployment */
.deploy-card ul { margin-top: 16px; display: grid; gap: 8px; list-style: none; }
.deploy-card li { display: flex; gap: 10px; color: var(--text-muted); font-size: .94rem; }
.deploy-card li .icon { width: 16px; height: 16px; margin-top: 4px; color: var(--ok); }
.deploy-card .tag { display: inline-block; margin-top: 18px; }
.deploy-card h3 { margin-top: 6px; font-size: 1.3rem; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 10px; max-width: 880px; margin-inline: auto; }
.faq details { border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); transition: border-color .25s; }
.faq details[open] { border-color: var(--border-strong); }
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  border-radius: var(--radius);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { width: 18px; height: 18px; color: var(--text-subtle); transition: transform .25s var(--ease); }
.faq details[open] summary .icon { transform: rotate(45deg); color: var(--accent); }
.faq .answer { padding: 0 22px 22px; color: var(--text-muted); max-width: 760px; }

/* ---------- solutions ---------- */
.solution { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.solution + .solution { margin-top: clamp(64px, 8vw, 104px); padding-top: clamp(64px, 8vw, 104px); border-top: 1px solid var(--border); }
.solution h2 { margin-top: 16px; font-size: clamp(1.8rem, 1.3rem + 1.8vw, 2.5rem); }
.solution .lead { margin-top: 18px; }
.solution h3.mini { margin-top: 30px; }
.solution .chips { margin-top: 12px; }
.solution .mini + p { margin-top: 8px; }
.solution--flip > :first-child { order: 2; }
@media (max-width: 960px) { .solution { grid-template-columns: minmax(0, 1fr); } .solution--flip > :first-child { order: 0; } }

.scenario { position: relative; padding: 26px; border-radius: var(--radius-xl); border: 1px solid var(--border-strong); background: var(--surface); box-shadow: var(--shadow-md); }
.scenario-head { display: flex; align-items: center; gap: 10px; }
.scenario-head .icon { width: 16px; height: 16px; color: var(--accent); }
.scenario-chain { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 16px; list-style: none; }
.scenario-chain li { display: inline-flex; align-items: center; gap: 6px; }
.scenario-chain .node {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
  font-size: .82rem;
  font-weight: 600;
}
.scenario-chain .node .icon { width: 15px; height: 15px; color: var(--text-muted); }
.scenario-chain .node--hot { border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.scenario-chain .node--hot .icon { color: var(--danger); }
.scenario-chain .sep { width: 14px; height: 14px; color: var(--text-subtle); }
.scenario-chain .cutmark { flex: none; width: 14px; height: 18px; border-radius: 2px; background: linear-gradient(115deg, var(--brand-red) 0 42%, transparent 42% 58%, var(--brand-blue) 58% 100%); }
@media (max-width: 560px) {
  .scenario-chain { flex-direction: column; align-items: flex-start; gap: 0; }
  .scenario-chain li { flex-direction: column; align-items: flex-start; gap: 0; }
  .scenario-chain .sep { transform: rotate(90deg); margin: 3px 0 3px 12px; }
  .scenario-chain .cutmark { width: 18px; height: 12px; margin: 4px 0 4px 10px; background: linear-gradient(25deg, var(--brand-red) 0 42%, transparent 42% 58%, var(--brand-blue) 58% 100%); }
}
.scenario > p { margin-top: 16px; color: var(--text-muted); font-size: .95rem; }
.scenario-steps { display: grid; gap: 10px; margin-top: 18px; list-style: none; }
.scenario-steps li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; color: var(--text-muted); font-size: .92rem; }
.scenario-steps .icon { width: 18px; height: 18px; margin-top: 2px; color: var(--accent); }
.scenario-steps li.ok .icon { color: var(--ok); }
.scenario-steps li.human .icon { color: var(--warn); }
.scenario-steps strong { color: var(--text); font-weight: 620; }
.scenario-foot { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); color: var(--text-subtle); font-size: .8rem; }

/* personas */
.persona h3 { margin-top: 16px; font-size: 1.08rem; }
.persona p { font-size: .94rem; }

/* TTVI */
.metric { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.metric h2 { margin-top: 16px; }
.metric .lead { margin-top: 18px; }
.ttvi { padding: 26px; border-radius: var(--radius-xl); border: 1px solid var(--border-strong); background: var(--surface); }
.ttvi-head { display: flex; align-items: center; gap: 10px; }
.ttvi-head .icon { width: 16px; height: 16px; color: var(--accent); }
.ttvi-bar { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 16px; list-style: none; }
.ttvi-bar::before { content: ""; position: absolute; left: 8px; right: calc(25% - 8px); top: 7px; height: 2px; background: linear-gradient(90deg, var(--danger), var(--warn) 45%, var(--accent) 70%, var(--ok)); }
.ttvi-bar li { position: relative; padding: 24px 8px 0 0; color: var(--text-muted); font-size: .84rem; line-height: 1.4; }
.ttvi-bar li::before { content: ""; position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 50%; background: var(--surface); border: 2px solid var(--accent); }
.ttvi-bar li:first-child::before { border-color: var(--danger); }
.ttvi-bar li:last-child::before { border-color: var(--ok); }
.ttvi-bar strong { display: block; color: var(--text); font-size: .9rem; }
.ttvi-span { display: flex; align-items: center; gap: 10px; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: .9rem; }
.ttvi-span .icon { width: 16px; height: 16px; color: var(--accent); }
.ttvi-span strong { color: var(--accent); }
@media (max-width: 960px) { .metric { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 520px) { .ttvi-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 18px; } .ttvi-bar::before { display: none; } }

/* where Circuit fits */
.fit { display: grid; gap: 12px; }
.fit-head, .fit-row { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1fr) minmax(0, 1.25fr); gap: 20px; }
.fit-head { padding: 0 24px 4px; }
.fit-row { align-items: start; padding: 22px 24px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface); }
.fit-row h3 { font-size: 1.08rem; }
.fit-row .col-label { display: none; margin-bottom: 4px; }
.fit-row p { color: var(--text-muted); font-size: .94rem; }
.fit-row .circuit p { color: var(--text); }
@media (max-width: 860px) {
  .fit-head { display: none; }
  .fit-row { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .fit-row .col-label { display: block; }
}

/* ---------- company ---------- */
.mission { max-width: 980px; }
.mission p.big {
  margin-top: 18px;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 1.15rem + 1.9vw, 2.6rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -.025em;
  color: var(--text);
  text-wrap: balance;
}
.mission p.big em { font-style: normal; color: var(--accent); }
.not-building { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.not-building h2 { margin-top: 18px; }
.not-building .chips { gap: 10px; }
.not-building .chip { font-size: .92rem; padding: 8px 14px; }
@media (max-width: 960px) { .not-building { grid-template-columns: minmax(0, 1fr); } }
.roadmap { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; list-style: none; }
.roadmap li { position: relative; padding: 28px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface); }
.roadmap .stage-name { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.roadmap .stage-name b { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent-soft); border: 1px solid var(--accent-line); font-size: .75rem; letter-spacing: 0; }
.roadmap h3 { margin-top: 14px; font-size: 1.2rem; }
.roadmap p { margin-top: 10px; color: var(--text-muted); }
.roadmap li.first { border-color: var(--accent-line); background: linear-gradient(180deg, var(--accent-soft), transparent 55%), var(--surface); }
@media (max-width: 900px) { .roadmap { grid-template-columns: minmax(0, 1fr); } }

/* ---------- contact ---------- */
.contact-section { padding-top: clamp(24px, 4vw, 48px); }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr); gap: clamp(28px, 4vw, 56px); align-items: start; }
@media (max-width: 960px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
.form-card { padding: clamp(22px, 3.5vw, 36px); border-radius: var(--radius-xl); border: 1px solid var(--border-strong); background: var(--surface); box-shadow: var(--shadow-md); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 600px) { .form-grid { grid-template-columns: minmax(0, 1fr); } }
.field label { display: block; margin-bottom: 7px; color: var(--text); font-size: .9rem; font-weight: 600; }
.field label .opt { color: var(--text-subtle); font-weight: 500; }
.input, .select, .textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--input-border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  line-height: 1.4;
  transition: border-color .2s, box-shadow .2s;
}
.textarea { min-height: 150px; resize: vertical; }
.select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 42px;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-subtle) 50%), linear-gradient(135deg, var(--text-subtle) 50%, transparent 50%);
  background-position: calc(100% - 20px) 21px, calc(100% - 15px) 21px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.input::placeholder, .textarea::placeholder { color: var(--text-subtle); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--text-muted); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.field.has-error .input, .field.has-error .select, .field.has-error .textarea { border-color: var(--danger); }
.field-error { display: none; margin-top: 6px; color: var(--danger); font-size: .85rem; font-weight: 550; }
.field.has-error .field-error { display: flex; align-items: center; gap: 6px; }
.field-error .icon { width: 15px; height: 15px; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 24px; }
.form-note { color: var(--text-subtle); font-size: .85rem; max-width: 400px; }
.form-status { display: none; margin-top: 22px; padding: 18px 20px; border-radius: var(--radius); border: 1px solid color-mix(in srgb, var(--ok) 40%, transparent); background: var(--ok-soft); }
.form-status.is-visible { display: block; }
.form-status.is-error { border-color: color-mix(in srgb, var(--danger) 40%, transparent); background: var(--danger-soft); }
.form-status .h3 { display: flex; align-items: center; gap: 10px; font-size: 1.05rem; letter-spacing: -.01em; color: var(--text); }
.form-status .h3 .icon { color: var(--ok); }
.form-status.is-error .h3 .icon { color: var(--danger); }
.form-status p { margin-top: 8px; color: var(--text-muted); font-size: .94rem; }
.form-status .btn { margin-top: 14px; }
.form-status [data-variant] { display: none; }
.form-status[data-show="mailto"] [data-variant="mailto"],
.form-status[data-show="sent"] [data-variant="sent"],
.form-status[data-show="failed"] [data-variant="failed"] { display: block; }
.contact-aside { display: grid; gap: 16px; }
.aside-card { padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface); }
.aside-card h2 { font-size: 1.1rem; letter-spacing: -.01em; }
.aside-card p { margin-top: 8px; color: var(--text-muted); font-size: .95rem; }
.aside-card .email { display: inline-flex; align-items: center; gap: 8px; margin-top: 12px; font-weight: 650; font-size: 1.02rem; }
.aside-card ol { margin-top: 12px; display: grid; gap: 10px; list-style: none; counter-reset: n; }
.aside-card ol li { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; color: var(--text-muted); font-size: .94rem; }
.aside-card ol li::before { counter-increment: n; content: counter(n); display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent-soft); border: 1px solid var(--accent-line); color: var(--accent); font-size: .78rem; font-weight: 700; }

/* ---------- prose (privacy) ---------- */
.prose { max-width: 760px; }
.prose h2 { margin-top: 40px; font-size: 1.35rem; letter-spacing: -.02em; }
.prose p, .prose li { margin-top: 12px; color: var(--text-muted); }
.prose ul { padding-left: 20px; }
.prose .updated { margin-top: 40px; color: var(--text-subtle); font-size: var(--fs-sm); }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, .7fr)); gap: 40px; padding-block: 64px 40px; }
.footer-brand img { width: 260px; height: auto; }
.footer-brand p { margin-top: 18px; max-width: 340px; color: var(--text-muted); font-size: .94rem; }
.footer-brand .email { display: inline-flex; align-items: center; gap: 8px; margin-top: 16px; color: var(--text); font-weight: 600; font-size: .95rem; }
.footer-brand .email .icon { width: 17px; height: 17px; color: var(--accent); }
.footer-col ul { margin-top: 16px; display: grid; gap: 10px; list-style: none; }
.footer-col a { color: var(--text-muted); font-size: .94rem; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-block: 22px 14px; border-top: 1px solid var(--border); color: var(--text-subtle); font-size: .86rem; }
.footer-bottom nav { display: flex; gap: 18px; }
.footer-bottom a { color: var(--text-subtle); }
.footer-bottom a:hover { color: var(--text); }
.footer-legal { padding-bottom: 28px; color: var(--text-subtle); font-size: var(--fs-xs); line-height: 1.6; max-width: 900px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 24px; } }

/* ---------- reveal on scroll ---------- */
/* main.js adds .reveal-on only when it can observe; content never stays hidden without it */
.reveal-on .reveal:not(.is-visible) { opacity: 0; }
.reveal-on .reveal.is-visible:not(.is-instant) { animation: reveal .75s var(--ease) both; animation-delay: calc(var(--d, 0) * 90ms); }
@keyframes reveal { from { opacity: 0; translate: 0 18px; } to { opacity: 1; translate: 0 0; } }
.d1 { --d: 1; } .d2 { --d: 2; } .d3 { --d: 3; } .d4 { --d: 4; } .d5 { --d: 5; } .d6 { --d: 6; }
.i1 { --i: 1; } .i2 { --i: 2; } .i3 { --i: 3; } .i4 { --i: 4; } .i5 { --i: 5; }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; transition-delay: 0s !important; }
  .reveal-on .reveal { opacity: 1 !important; animation: none !important; }
}

/* ---------- print / save as PDF ---------- */
@media print {
  :root { color-scheme: light; --bg: #fff; --bg-alt: #fff; --surface: #fff; --surface-2: #f4f6f9; --text: #0e131b; --text-muted: #333c4a; --text-subtle: #4a5567; --border: #d5dbe4; --border-strong: #c2cad6; --accent: #006fab; }
  body { background: #fff; color: #0e131b; }
  .reveal-on .reveal { opacity: 1 !important; animation: none !important; translate: none !important; }
  .site-header { position: static; background: none !important; backdrop-filter: none !important; }
  .hero, .page-hero { margin-top: 0; padding-top: 24px; }
  .mobile-menu, .menu-backdrop, .menu-toggle, .theme-toggle, .play-toggle, .path-steps, .cta-band, .bg-grid, .skip-link, .header-actions .btn, .page-nav { display: none !important; }
  .card, .zone, .arch-zone, .stage, .fit-row, .scenario, .faq details, .path-card { break-inside: avoid; box-shadow: none !important; }
  .path-card, .card, .scenario { backdrop-filter: none !important; background: #fff !important; }
  a[href^="http"]::after, a[href^="mailto:"]::after { content: " (" attr(href) ")"; color: #4a5567; font-size: .85em; }
  .section, .section--alt { padding-block: 28px; border: 0; }
}

/* ---------- utilities ---------- */
.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;
}
.accent-text { color: var(--accent); }
.mt-lead { margin-top: 18px; }
.muted { color: var(--text-muted); }
.nowrap { white-space: nowrap; }


/* =========================================================================
   v2.0 — the vector logo, the lab demo, Circuit AI, the product
   v3.0 — aligned with Circuit 1.0 Alpha: the console's Afterburner (dark) and
   Contrail (light) themes, built for India (CERT-In, data residency)
   ========================================================================= */

/* theme-specific media (screenshots and videos exist in both themes); dark shows by default */
.for-light { display: none !important; }
:root[data-theme="light"] .for-light { display: block !important; }
:root[data-theme="light"] .for-dark { display: none !important; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .for-light { display: block !important; }
  :root:not([data-theme]) .for-dark { display: none !important; }
}

/* footer brand: the lockup with the tagline set as text */
.brand--foot { flex-direction: column; align-items: flex-start; gap: 8px; }
.brand--foot .cp-logo { height: 40px; }
.brand-tag { font-style: italic; letter-spacing: .14em; font-size: var(--fs-sm); color: var(--text-subtle); padding-left: 4px; }

/* v3.0: the light footer follows Contrail (Circuit 1.0 Alpha) — the tinted ground with a hairline, no ink band */

/* the event line under the hero buttons */
.event-pill { display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--accent-line); background: var(--accent-soft); color: var(--text); font-size: var(--fs-sm); font-weight: 600; }
.event-pill .icon { width: 16px; height: 16px; color: var(--accent); }
.event-pill:hover { text-decoration: none; border-color: var(--accent); }
.event-pill .ev-t { color: var(--text); font-weight: 600; }
.event-pill .ev-t span { color: var(--text-muted); font-weight: 500; }

/* the lab demo */
.demo-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; }
.demo-frame { position: relative; border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--border-strong); background: var(--surface); box-shadow: var(--shadow-lg); }
.demo-frame video { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; background: #121016; }
:root[data-theme="light"] .demo-frame video { background: #f7f6f9; }
@media (prefers-color-scheme: light) { :root:not([data-theme]) .demo-frame video { background: #f7f6f9; } }
.lab-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.lab-stat { padding: 20px 22px; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--border); }
.lab-stat b { display: block; font-family: var(--font-display); font-size: clamp(1.9rem, 1.4rem + 1.6vw, 2.6rem); line-height: 1.05; letter-spacing: -.02em; color: var(--text); }
.lab-stat span { display: block; margin-top: 6px; color: var(--text-muted); font-size: var(--fs-md); }
.lab-stat small { display: block; margin-top: 10px; color: var(--text-subtle); font-size: var(--fs-xs); letter-spacing: .06em; text-transform: uppercase; font-weight: 700; }
.lab-stat--ai b { color: var(--ai); }
.demo-note { color: var(--text-subtle); font-size: var(--fs-sm); margin: 0; }
.demo-also { color: var(--text-muted); font-size: var(--fs-sm); }
.demo-also summary { cursor: pointer; color: var(--accent); font-weight: 600; width: max-content; border-radius: 6px; }
.demo-also summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.demo-also p { max-width: 78ch; margin: 12px 0 0; line-height: 1.7; }

/* Circuit AI */
.kicker--ai { color: var(--ai); }
.agents { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.agent-card { position: relative; display: flex; flex-direction: column; gap: 12px; padding: 26px; border-radius: var(--radius-xl); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-md); }
.agent-card .agent-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.agent-icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: var(--ai-soft); color: var(--ai); }
.agent-icon .icon { width: 24px; height: 24px; }
.agent-level { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-subtle); text-align: right; line-height: 1.5; }
.agent-level b { display: block; font-family: var(--font-body); letter-spacing: .1em; text-transform: uppercase; color: var(--ai); }
.agent-card h3 { margin: 4px 0 0; font-size: 1.45rem; }
.agent-card p { margin: 0; color: var(--text-muted); }
.agent-proof { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border); }
.race { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; align-items: center; font-size: var(--fs-sm); }
.race .bar { position: relative; height: 10px; border-radius: 5px; background: var(--surface-3); overflow: hidden; }
.race .bar i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 5px; background: var(--ai); }
.race .bar--fast i { width: 2%; min-width: 8px; }
.race .bar--slow i { width: 100%; background: repeating-linear-gradient(45deg, var(--border-strong) 0 6px, transparent 6px 12px); }
.race b { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--text); text-align: right; }
.race .race-l { grid-column: 1 / -1; color: var(--text-muted); }
.ai-pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: var(--ai-soft); color: var(--ai); border: 1px solid var(--ai-line); font-size: var(--fs-sm); font-weight: 700; }
.ai-pill .icon { width: 15px; height: 15px; }
.checks { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.checks li { display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); font-size: var(--fs-sm); color: var(--text-muted); font-weight: 600; }
.checks .icon { width: 15px; height: 15px; color: var(--ok); }
.kpis3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.kpis3 div { padding: 8px 10px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); }
.kpis3 small { display: block; font-size: .6875rem; color: var(--text-subtle); font-weight: 600; white-space: nowrap; }
.kpis3 b { display: block; font-family: var(--font-display); font-size: 1.25rem; }
.guards { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 28px; list-style: none; padding: 0; }
.guards li { display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border-strong); font-weight: 700; font-size: var(--fs-md); }
.guards .icon { width: 18px; height: 18px; color: var(--ai); }
.ai-shot { margin-top: 32px; }
.ladder { display: grid; gap: 10px; margin: 24px 0 0; padding: 0; list-style: none; }
.ladder li { display: grid; grid-template-columns: 56px 1fr auto; gap: 14px; align-items: center; padding: 12px 16px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.ladder .lv { font-family: var(--font-mono); font-weight: 700; color: var(--ai); }
.ladder b { display: block; }
.ladder span { color: var(--text-muted); font-size: var(--fs-sm); }
.ladder .st { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--ok); }
.ladder .st--off { color: var(--text-subtle); }

/* the product, as it runs in our lab */
.shots { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.shot { margin: 0; }
.shot-frame { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-strong); background: var(--surface); box-shadow: var(--shadow-md); }
.shot-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; background: var(--surface-2); border-bottom: 1px solid var(--border); font-size: var(--fs-xs); color: var(--text-subtle); }
.shot-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.shot-bar span { margin-left: 6px; }
.shot img { display: block; width: 100%; height: auto; }
.shot figcaption { margin-top: 12px; color: var(--text-muted); font-size: var(--fs-md); }
.shot figcaption b { color: var(--text); }
.shot--wide { grid-column: 1 / -1; }

/* platform · what the approver sees: two phone screens from the console */
.approve-fig { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; margin: clamp(48px, 6vw, 80px) 0 0; }
.phones { display: flex; gap: 20px; align-items: flex-start; }
.phone { width: clamp(150px, 17vw, 236px); padding: 7px; border-radius: 34px; background: #0b090d; box-shadow: var(--shadow-md), 0 0 0 1px var(--border-strong); }
.phone--low { margin-top: 56px; }
.phone img { display: block; width: 100%; height: auto; border-radius: 27px; }
.approve-fig h3 { margin: 12px 0 18px; font-size: clamp(1.35rem, 1.1rem + .9vw, 1.75rem); line-height: 1.25; }
.approve-points { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.approve-points li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; align-items: start; color: var(--text-muted); }
.approve-points .icon { width: 20px; height: 20px; margin-top: 2px; color: var(--accent); }
.approve-points li:nth-child(2) .icon { color: var(--ai); }
.approve-points b { color: var(--text); }
@media (max-width: 860px) {
  .approve-fig { grid-template-columns: minmax(0, 1fr); }
  .phones { justify-content: center; }
}

@media (max-width: 900px) {
  .agents, .lab-stats { grid-template-columns: minmax(0, 1fr); }
  .shots { grid-template-columns: minmax(0, 1fr); }
}
@media print {
  .demo-frame video { display: none; }
}

/* =========================================================================
   v3.0 — built for India: the CERT-In draft and where your data lives
   ========================================================================= */
.india-grid { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: clamp(28px, 4vw, 56px); align-items: start; }
.india-points { display: grid; gap: 18px; margin: 0; padding: 0; list-style: none; }
.india-points li { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; align-items: start; color: var(--text-muted); }
.india-points li > .icon { width: 40px; height: 40px; padding: 9px; border-radius: 12px; color: var(--accent); background: var(--accent-soft); border: 1px solid var(--accent-line); }
.india-points b { display: block; margin-bottom: 2px; color: var(--text); font-family: var(--font-display); font-size: 1.05rem; }
.india-shot { grid-template-columns: minmax(0, 1fr); }
.residency { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: clamp(28px, 4vw, 56px); align-items: center; margin-top: clamp(40px, 5vw, 64px); padding: clamp(22px, 3vw, 32px); border-radius: var(--radius-xl); border: 1px solid var(--border-strong); background: var(--bg-alt); }
.section--alt .residency { background: var(--surface); }
.residency-copy h3 { margin: 14px 0 8px; font-size: clamp(1.35rem, 1.1rem + .9vw, 1.75rem); line-height: 1.25; }
.residency-copy p { color: var(--text-muted); }
.residency-l { margin-top: 18px; color: var(--text-subtle) !important; font-size: var(--fs-xs); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.residency-list { display: grid; gap: 8px; margin: 10px 0 0; padding: 0; list-style: none; }
.residency-list li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 10px; color: var(--text-muted); font-size: var(--fs-md); }
.residency-list .icon { width: 16px; height: 16px; margin-top: 3px; color: var(--ok); }
.residency .shots { grid-template-columns: minmax(0, 1fr); }
.residency--platform { margin-top: clamp(32px, 4vw, 48px); }
.india-note { margin-top: 22px; color: var(--text-subtle); font-size: var(--fs-sm); max-width: 900px; }
@media (max-width: 960px) {
  .india-grid, .residency { grid-template-columns: minmax(0, 1fr); }
}
/* v3.0: lab labels beside lab figures, and the scripted-AI note */
.proof-l { margin: 10px 0 0; color: var(--text-subtle); font-size: var(--fs-xs); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.ai-note { margin: 18px auto 0; max-width: 760px; text-align: center; color: var(--text-subtle); font-size: var(--fs-sm); }