/* =========================================================
   American Block Solutions — design system
   ========================================================= */

:root {
  /* Brand palette */
  --ink-900: #070d18;
  --ink-850: #0a1220;
  --ink-800: #0d1626;
  --ink-700: #111d31;
  --ink-600: #16243c;
  --line: rgba(140, 165, 200, 0.16);
  --line-strong: rgba(140, 165, 200, 0.28);

  --paper: #f6f8fc;
  --paper-2: #eef2f9;

  --text: #e8eef9;
  --text-soft: #aab8d0;
  --text-mute: #7d8aa3;

  --accent: #4c82fb;
  --accent-2: #6ad6ff;
  --accent-soft: rgba(76, 130, 251, 0.14);
  --gold: #e2b45a;
  --gold-soft: rgba(226, 180, 90, 0.16);
  --warn: #f0a35e;

  /* Theme-driven surfaces (default: dark) */
  --bg: var(--ink-900);
  --surface: var(--ink-800);
  --surface-2: var(--ink-700);
  --on-surface: var(--text);
  --on-surface-soft: var(--text-soft);
  --on-surface-mute: var(--text-mute);
  --hairline: var(--line);

  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.65);
  --shadow-soft: 0 12px 40px -20px rgba(0, 0, 0, 0.5);

  --maxw: 1180px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Light theme */
[data-theme="light"] {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: var(--paper);
  --on-surface: #0e1726;
  --on-surface-soft: #41506b;
  --on-surface-mute: #6b7892;
  --text: #0e1726;
  --text-soft: #41506b;
  --hairline: rgba(20, 40, 80, 0.1);
  --line: rgba(20, 40, 80, 0.1);
  --line-strong: rgba(20, 40, 80, 0.16);
  --accent-soft: rgba(76, 130, 251, 0.1);
  --shadow: 0 24px 60px -30px rgba(20, 40, 80, 0.28);
  --shadow-soft: 0 12px 36px -22px rgba(20, 40, 80, 0.22);
}

/* =========================================================
   Base
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--on-surface);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background 0.4s var(--ease), color 0.4s var(--ease);
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 820px; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

::selection { background: var(--accent); color: #fff; }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-display); font-weight: 500; font-size: 15px;
  padding: 12px 22px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s, color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.btn--sm { padding: 9px 16px; font-size: 14px; }
.btn--lg { padding: 15px 28px; font-size: 16px; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 10px 30px -12px rgba(76, 130, 251, 0.6); }
.btn--primary:hover { background: #5b8dff; box-shadow: 0 16px 36px -12px rgba(76, 130, 251, 0.75); }

.btn--gold { background: var(--gold); color: #2a1d05; box-shadow: 0 10px 30px -12px rgba(226, 180, 90, 0.55); }
.btn--gold:hover { background: #ecc372; }

.btn--ghost { background: transparent; color: var(--on-surface); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* =========================================================
   Announcement bar
   ========================================================= */
.announce {
  background: linear-gradient(90deg, var(--ink-850), var(--ink-700));
  border-bottom: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 13.5px;
}
[data-theme="light"] .announce { background: linear-gradient(90deg, #0d1626, #16243c); color: #c4d2ec; }
.announce__inner { display: flex; align-items: center; gap: 14px; padding: 10px 24px; }
.announce__pill {
  flex-shrink: 0; font-family: var(--font-display); font-weight: 600; font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold);
  border: 1px solid var(--gold-soft); background: var(--gold-soft); padding: 3px 9px; border-radius: 999px;
}
.announce p { margin: 0; }
@media (max-width: 640px) { .announce p { font-size: 12.5px; } }

/* =========================================================
   Header / nav
   ========================================================= */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--hairline);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark { flex-shrink: 0; }
.brand__text { font-family: var(--font-display); font-weight: 600; font-size: 18px; letter-spacing: -0.02em; }
.brand__text em { font-style: normal; color: var(--accent); font-weight: 500; }

.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-size: 14.5px; color: var(--on-surface-soft); position: relative; transition: color 0.2s; }
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--accent); transition: width 0.25s var(--ease);
}
.nav a:hover { color: var(--on-surface); }
.nav a:hover::after, .nav a.is-active::after { width: 100%; }
.nav a.is-active { color: var(--on-surface); }

.site-header__actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 10px; cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--hairline); color: var(--on-surface-soft);
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.theme-toggle__moon { display: none; }
[data-theme="light"] .theme-toggle__sun { display: none; }
[data-theme="light"] .theme-toggle__moon { display: block; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 40px; height: 38px; align-items: center; justify-content: center; background: var(--surface-2); border: 1px solid var(--hairline); border-radius: 10px; cursor: pointer; }
.nav-toggle span { width: 18px; height: 2px; background: var(--on-surface); border-radius: 2px; transition: transform 0.25s, opacity 0.2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav { display: none; flex-direction: column; gap: 4px; padding: 16px 24px 24px; border-bottom: 1px solid var(--hairline); background: var(--bg); }
.mobile-nav a { padding: 12px 0; font-size: 16px; border-bottom: 1px solid var(--hairline); color: var(--on-surface-soft); }
.mobile-nav a:last-child { border: 0; margin-top: 10px; }
.mobile-nav .btn { justify-content: center; }

/* =========================================================
   Hero
   ========================================================= */
.hero { position: relative; overflow: hidden; padding: 70px 0 40px; }
.hero__grid-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(900px 500px at 78% -5%, var(--accent-soft), transparent 60%),
    radial-gradient(700px 420px at 8% 8%, rgba(106, 214, 255, 0.08), transparent 60%),
    linear-gradient(transparent 31px, var(--line) 32px),
    linear-gradient(90deg, transparent 31px, var(--line) 32px);
  background-size: auto, auto, 32px 32px, 32px 32px;
  mask-image: linear-gradient(180deg, #000 0%, #000 55%, transparent 92%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 55%, transparent 92%);
  opacity: 0.7;
}
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; padding-bottom: 48px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-mono);
  font-size: 12.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--on-surface-soft);
  border: 1px solid var(--hairline); background: var(--surface); padding: 7px 14px; border-radius: 999px; margin-bottom: 24px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px var(--gold-soft); }

.hero h1 { font-size: clamp(40px, 6.4vw, 76px); line-height: 1.02; letter-spacing: -0.03em; font-weight: 700; }
.hero h1 .grad {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__lede { margin-top: 26px; font-size: 19px; color: var(--on-surface-soft); max-width: 540px; }
.hero__cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero__trust { list-style: none; margin: 36px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 14px 26px; }
.hero__trust li { display: inline-flex; align-items: center; gap: 9px; font-size: 14px; color: var(--on-surface-soft); }
.hero__trust svg { color: var(--accent); flex-shrink: 0; }

/* Reserve invariant panel */
.hero__panel { position: relative; }
.panel-card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  padding: 26px; box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.panel-card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(160deg, var(--accent), transparent 40%, transparent 70%, var(--gold));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0.4; pointer-events: none;
}
.panel-card__tag { font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--on-surface-mute); }
.invariant { margin-top: 18px; }
.invariant__row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.invariant__label { font-size: 13.5px; color: var(--on-surface-soft); }
.invariant__val { font-family: var(--font-display); font-weight: 600; font-size: 26px; letter-spacing: -0.02em; }
.invariant__val--gold { color: var(--gold); }
.invariant__eq { text-align: center; font-family: var(--font-mono); color: var(--accent); font-size: 18px; margin: 6px 0; }
.invariant__bar { height: 8px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--hairline); overflow: hidden; margin: 16px 0 12px; }
.invariant__fill { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--gold)); transition: width 1.4s var(--ease); }
.invariant__note { font-size: 13px; color: var(--on-surface-mute); line-height: 1.5; }
.panel-card__foot { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--hairline); }
.panel-card__foot code { font-family: var(--font-mono); font-size: 13px; color: var(--on-surface-soft); }
.panel-card__foot .hl { color: var(--gold); }

/* logo strip */
.logo-strip { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; padding: 22px 0 4px; border-top: 1px solid var(--hairline); }
.logo-strip > span { font-size: 13px; color: var(--on-surface-mute); }
.logo-strip__items { display: flex; flex-wrap: wrap; gap: 26px; }
.logo-strip__items span { font-family: var(--font-display); font-weight: 500; font-size: 15px; color: var(--on-surface-soft); opacity: 0.75; letter-spacing: -0.01em; }

/* =========================================================
   Section scaffolding
   ========================================================= */
.section { padding: 96px 0; position: relative; }
.section--dark { background: var(--ink-850); }
[data-theme="light"] .section--dark { background: #0b1424; color: var(--text); }
[data-theme="light"] .section--dark .section-sub,
[data-theme="light"] .section--dark .section-kicker { color: #aab8d0; }
.section--paper { background: var(--surface-2); }

.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-kicker {
  display: inline-block; font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 16px;
}
.section-head h2 { font-size: clamp(28px, 4vw, 44px); }
.section-sub { margin-top: 18px; font-size: 18px; color: var(--on-surface-soft); }
.section--dark .section-sub { color: var(--text-soft); }
.section--dark .section-head h2 { color: var(--text); }

/* =========================================================
   The moment
   ========================================================= */
.moment-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.moment-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: transform 0.3s var(--ease), border-color 0.3s;
}
[data-theme="light"] .section--dark .moment-card { background: #111d31; border-color: rgba(140,165,200,0.16); }
.moment-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.moment-card__num { font-family: var(--font-mono); font-size: 13px; color: var(--accent); margin-bottom: 14px; }
.moment-card h3 { font-size: 21px; margin-bottom: 10px; color: var(--text); }
[data-theme="light"] .section--dark .moment-card h3 { color: #fff; }
.moment-card p { font-size: 15.5px; color: var(--text-soft); }
.moment-card__chip {
  display: inline-block; margin-top: 18px; font-family: var(--font-mono); font-size: 11.5px;
  text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent);
  background: var(--accent-soft); padding: 5px 11px; border-radius: 999px;
}
.moment-card__chip--warn { color: var(--warn); background: rgba(240, 163, 94, 0.12); }

.moment-thesis {
  margin-top: 36px; padding: 30px 34px; border-radius: var(--radius);
  background: linear-gradient(120deg, var(--accent-soft), transparent);
  border: 1px solid var(--line-strong);
}
.moment-thesis p { font-size: 18px; color: var(--text-soft); }
.moment-thesis strong { color: var(--text); }
.moment-thesis__tag { display: block; margin-top: 12px; font-family: var(--font-display); font-weight: 600; color: var(--gold); font-size: 19px; }

/* =========================================================
   Layers / what we build
   ========================================================= */
.layers { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }

.layers__diagram { display: flex; flex-direction: column; align-items: stretch; gap: 0; }
.layer-node {
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm); padding: 18px 20px;
  background: var(--surface); text-align: center; box-shadow: var(--shadow-soft);
}
.layer-node__k { display: block; font-family: var(--font-display); font-weight: 600; font-size: 15px; }
.layer-node__v { display: block; margin-top: 4px; font-size: 12.5px; color: var(--on-surface-mute); }
.layer-node--core { background: var(--surface); }
.layer-node--mid { background: linear-gradient(120deg, var(--accent-soft), var(--surface)); border-color: var(--accent); }
.layer-node--chain { background: var(--surface-2); padding-bottom: 14px; }
.layer-node__stack { display: grid; gap: 6px; margin-top: 12px; }
.layer-node__stack span { font-family: var(--font-mono); font-size: 12px; color: var(--on-surface-soft); background: var(--surface); border: 1px solid var(--hairline); border-radius: 7px; padding: 7px 10px; }
.layer-connector { display: flex; justify-content: center; height: 26px; }
.layer-connector span { width: 2px; height: 100%; background: linear-gradient(var(--accent), transparent); }

.layers__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.layer-item { display: flex; gap: 18px; align-items: flex-start; padding: 16px 18px; border-radius: var(--radius-sm); border: 1px solid transparent; transition: background 0.25s, border-color 0.25s; }
.layer-item:hover { background: var(--surface); border-color: var(--line); }
.layer-item__i {
  flex-shrink: 0; width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 600; color: var(--accent);
  background: var(--accent-soft); border: 1px solid var(--line-strong);
}
.layer-item h3 { font-size: 18px; margin-bottom: 4px; }
.layer-item p { font-size: 15px; color: var(--on-surface-soft); }

.callout {
  margin-top: 48px; display: flex; gap: 16px; align-items: flex-start;
  padding: 24px 28px; border-radius: var(--radius); border: 1px solid var(--line-strong);
  background: linear-gradient(120deg, var(--gold-soft), transparent);
}
.callout svg { color: var(--gold); flex-shrink: 0; margin-top: 2px; }
.callout p { font-size: 16.5px; color: var(--on-surface-soft); }
.callout strong { color: var(--on-surface); }

/* =========================================================
   Compare (stablecoin vs deposit)
   ========================================================= */
.compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 0 28px; align-items: stretch; }
.compare__card {
  background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  padding: 30px; box-shadow: var(--shadow-soft); display: flex; flex-direction: column;
}
.compare__card--alt { border-color: var(--gold); box-shadow: 0 20px 50px -28px rgba(226, 180, 90, 0.4); }
.compare__card header { margin-bottom: 16px; }
.compare__tag { font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); }
.compare__tag--gold { color: var(--gold); }
.compare__card h3 { font-size: 24px; margin-top: 8px; }
.compare__desc { font-size: 15.5px; color: var(--on-surface-soft); margin-bottom: 18px; }
.compare__best { margin-top: auto; padding-top: 18px; font-size: 14.5px; color: var(--on-surface-mute); font-style: italic; }
.compare__vs { display: grid; place-items: center; }
.compare__vs span {
  font-family: var(--font-display); font-weight: 600; font-size: 13px; color: var(--on-surface-mute);
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--line-strong); background: var(--surface);
}
.compare__foot { max-width: 760px; margin: 36px auto 0; text-align: center; font-size: 16px; color: var(--on-surface-soft); }

.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.checklist li { position: relative; padding-left: 28px; font-size: 15px; color: var(--on-surface-soft); }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent-soft); border: 1px solid var(--accent);
}
.checklist li::after { content: ""; position: absolute; left: 6px; top: 8px; width: 6px; height: 3px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.checklist--gold::before { background: var(--gold-soft); border-color: var(--gold); }
.checklist--gold::after { border-color: var(--gold); }
.checklist--con::before { background: rgba(125,138,163,0.14); border-color: var(--on-surface-mute); }
.checklist--con::after { display: none; }
.checklist--con { color: var(--on-surface-mute); }

/* =========================================================
   Pillars / boundaries
   ========================================================= */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pillar {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
[data-theme="light"] .section--dark .pillar { background: #111d31; }
.pillar:hover { transform: translateY(-4px); border-color: var(--accent); }
.pillar__icon { width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center; color: var(--accent); background: var(--accent-soft); margin-bottom: 18px; }
.pillar h3 { font-size: 20px; margin-bottom: 10px; color: var(--text); }
[data-theme="light"] .section--dark .pillar h3 { color: #fff; }
.pillar p { font-size: 15px; color: var(--text-soft); }

.boundaries { margin-top: 40px; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); padding: 34px; background: var(--surface); }
[data-theme="light"] .section--dark .boundaries { background: #111d31; }
.boundaries__title { font-size: 22px; margin-bottom: 22px; color: var(--text); }
[data-theme="light"] .section--dark .boundaries__title { color: #fff; }
.boundaries__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.boundary__num { font-family: var(--font-mono); color: var(--gold); font-size: 13px; }
.boundary h4 { font-size: 18px; margin: 8px 0 8px; color: var(--text); }
[data-theme="light"] .section--dark .boundary h4 { color: #fff; }
.boundary p { font-size: 15px; color: var(--text-soft); }

/* =========================================================
   Engagement ladder
   ========================================================= */
.ladder { list-style: none; margin: 0; padding: 0; position: relative; max-width: 880px; margin: 0 auto; }
.ladder::before { content: ""; position: absolute; left: 23px; top: 24px; bottom: 24px; width: 2px; background: linear-gradient(var(--accent), var(--gold)); opacity: 0.4; }
.ladder__step { display: flex; gap: 24px; padding-bottom: 28px; position: relative; }
.ladder__step:last-child { padding-bottom: 0; }
.ladder__marker { flex-shrink: 0; z-index: 1; }
.ladder__marker span {
  display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px;
  font-family: var(--font-display); font-weight: 600; font-size: 19px; color: #fff;
  background: linear-gradient(150deg, var(--accent), #3568e0); box-shadow: 0 10px 24px -12px rgba(76,130,251,0.7);
}
.ladder__body { flex: 1; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; transition: border-color 0.25s, transform 0.25s; }
.ladder__body:hover { border-color: var(--line-strong); transform: translateX(3px); }
.ladder__head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.ladder__head h3 { font-size: 21px; }
.ladder__meta { font-family: var(--font-mono); font-size: 12.5px; color: var(--gold); }
.ladder__body p { font-size: 15.5px; color: var(--on-surface-soft); }
.ladder__out { margin-top: 16px; font-family: var(--font-mono); font-size: 12.5px; color: var(--on-surface-mute); padding-top: 14px; border-top: 1px dashed var(--hairline); }

/* =========================================================
   Who we serve
   ========================================================= */
.who-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.who-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: transform 0.3s var(--ease), border-color 0.3s; }
.who-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.who-card h3 { font-size: 18px; margin-bottom: 10px; }
.who-card p { font-size: 14.5px; color: var(--on-surface-soft); }

/* =========================================================
   FAQ
   ========================================================= */
.faq { display: grid; gap: 12px; }
.faq__item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; transition: border-color 0.25s; }
.faq__item[open] { border-color: var(--line-strong); }
.faq__item summary {
  cursor: pointer; list-style: none; padding: 20px 24px; font-family: var(--font-display);
  font-weight: 500; font-size: 17px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; font-size: 22px; color: var(--accent); transition: transform 0.25s; line-height: 1; }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__a { padding: 0 24px 22px; }
.faq__a p { font-size: 15.5px; color: var(--on-surface-soft); }

/* =========================================================
   CTA
   ========================================================= */
.cta { padding: 0 0 96px; }
.cta__card {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: center;
  background: linear-gradient(135deg, var(--ink-800), var(--ink-700));
  border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  padding: 52px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.cta__card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 300px at 90% 0%, var(--accent-soft), transparent 60%); pointer-events: none; }
.cta__copy { position: relative; }
.cta__copy h2 { font-size: clamp(26px, 3.4vw, 36px); color: var(--text); }
.cta__copy p { margin-top: 16px; font-size: 17px; color: var(--text-soft); }
.cta__points { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 10px; }
.cta__points li { position: relative; padding-left: 26px; font-size: 14.5px; color: var(--text-soft); }
.cta__points li::before { content: "✓"; position: absolute; left: 0; color: var(--gold); font-weight: 700; }
.cta__action { position: relative; display: flex; flex-direction: column; gap: 12px; }
.cta__action .btn { width: 100%; }
.cta__fine { font-size: 13px; color: var(--text-mute); margin-top: 4px; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { background: var(--ink-900); border-top: 1px solid var(--line); padding: 64px 0 28px; }
[data-theme="light"] .site-footer { background: #0b1424; }
.site-footer__inner { display: grid; grid-template-columns: 1.3fr 2fr; gap: 48px; }
.site-footer .brand__text { color: var(--text); }
.site-footer__brand p { margin-top: 16px; font-size: 14.5px; color: var(--text-mute); max-width: 340px; }
.site-footer__links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.site-footer__links h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-soft); margin-bottom: 14px; }
.site-footer__links a { display: block; font-size: 14.5px; color: var(--text-mute); padding: 5px 0; transition: color 0.2s; }
.site-footer__links a:hover { color: var(--accent); }
.site-footer__bottom { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer__bottom p { font-size: 12.5px; color: var(--text-mute); }
.site-footer__disclaimer { max-width: 560px; text-align: right; }

/* =========================================================
   Reveal animation
   ========================================================= */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .site-header__actions .btn--sm { display: none; }
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__panel { max-width: 460px; }
  .layers { grid-template-columns: 1fr; gap: 36px; }
  .layers__diagram { max-width: 460px; margin: 0 auto; }
  .moment-grid, .pillars, .who-grid { grid-template-columns: 1fr 1fr; }
  .cta__card { grid-template-columns: 1fr; gap: 30px; padding: 38px; }
  .site-footer__inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 760px) {
  .compare { grid-template-columns: 1fr; gap: 18px; }
  .compare__vs { display: none; }
  .boundaries__grid { grid-template-columns: 1fr; }
  .site-footer__disclaimer { text-align: left; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .section { padding: 68px 0; }
  .moment-grid, .pillars, .who-grid { grid-template-columns: 1fr; }
  .moment-thesis { padding: 24px; }
  .ladder__head { flex-direction: column; gap: 4px; }
  .site-footer__links { grid-template-columns: 1fr 1fr; }
  .hero__trust { gap: 12px 20px; }
}
@media (max-width: 980px) { .mobile-nav.is-open { display: flex; } }