/* ---- Tokens ---- */
:root {
  --navy-900: #0b1f3a;
  --navy-800: #102a4f;
  --navy-700: #1a3a6b;
  --teal-500: #1ec8c8;
  --teal-400: #3ddada;
  --teal-50:  #e6fafa;
  --amber-400: #ffd166;
  --amber-300: #ffe29a;
  --ink-900: #0e1726;
  --ink-700: #2a374a;
  --ink-500: #5b6b80;
  --ink-300: #9aa6b6;
  --line:    #e5ebf2;
  --bg:      #ffffff;
  --bg-soft: #f6f9fc;

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(11,31,58,.06), 0 2px 8px rgba(11,31,58,.04);
  --shadow:    0 8px 24px rgba(11,31,58,.08), 0 2px 6px rgba(11,31,58,.05);
  --shadow-lg: 0 24px 60px rgba(11,31,58,.18);

  --container: 1180px;
  --serif: 'Space Grotesk', ui-sans-serif, system-ui;
  --sans:  'Inter', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

/* ---- Reset-ish ---- */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink-900);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--teal-500); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---- Skip link ---- */
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--navy-900); color: #fff; padding: 8px 14px;
  z-index: 1000;
}
.skip:focus { left: 12px; top: 12px; }

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  height: 68px;
  flex-wrap: nowrap;
}
.brand-wrap { display: inline-flex; align-items: center; gap: 14px; }
.placeholder-flag {
  font-size: 12px; font-weight: 700; letter-spacing: .04em;
  color: #b91c1c;
  background: #fee2e2; border: 1px solid #fecaca;
  padding: 4px 10px; border-radius: 999px;
  text-transform: uppercase;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--serif); font-weight: 700; font-size: 20px;
  color: var(--navy-900);
}
.brand:hover { color: var(--navy-900); }
.brand-mark { width: 30px; height: 30px; }
.brand-text { letter-spacing: -0.01em; }
.brand-ai { color: var(--teal-500); margin-left: 2px; }

.primary-nav {
  display: flex; align-items: center; gap: 20px;
  font-weight: 500; font-size: 15px;
  flex-wrap: nowrap; white-space: nowrap;
}
.primary-nav a { color: var(--ink-700); }
.primary-nav a:hover { color: var(--navy-900); }
.primary-nav a.nav-cta,
.primary-nav a.nav-cta:hover { color: #fff; padding: 9px 16px; }
.nav-divider {
  width: 1px; height: 22px; background: var(--line);
}
.primary-nav a.nav-link-auth { font-weight: 600; color: var(--navy-900); }
.primary-nav a.nav-link-auth:hover { color: var(--teal-500); }
.primary-nav a.nav-cta-sm { padding: 9px 16px; }
.primary-nav a.nav-cta-sm:hover { padding: 9px 16px; color: #fff; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  background: transparent; border: 1px solid var(--line); border-radius: 10px;
  cursor: pointer; padding: 0;
  flex-direction: column; gap: 4px; align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px;
  background: var(--navy-900); border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 999px; font-weight: 600;
  font-size: 15px; line-height: 1; transition: transform .15s, background .2s, color .2s, border-color .2s;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--navy-900); color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--navy-800); color: #fff; }
.btn-ghost {
  background: transparent; color: var(--navy-900); border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--navy-900); color: var(--navy-900); }
.btn-outline {
  background: transparent; color: var(--navy-900); border-color: var(--navy-900);
}
.btn-outline:hover { background: var(--navy-900); color: #fff; }
.btn-ghost-light {
  background: transparent; color: #fff; border-color: rgba(255,255,255,.4);
}
.btn-ghost-light:hover { border-color: #fff; color: #fff; }

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 80px 0 100px;
  background:
    radial-gradient(900px 500px at 90% -10%, rgba(30,200,200,.18), transparent 60%),
    radial-gradient(700px 400px at -10% 10%, rgba(11,31,58,.06), transparent 60%),
    linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%);
  overflow: hidden;
}
.hero-inner { max-width: 880px; }
.eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--teal-500);
  background: var(--teal-50); padding: 6px 12px; border-radius: 999px;
  margin: 0 0 22px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(36px, 5.4vw, 64px);
  line-height: 1.05; letter-spacing: -0.02em;
  margin: 0 0 22px; color: var(--navy-900);
  font-weight: 700;
}
.hero h1 em { font-style: italic; color: var(--teal-500); }
.lead {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--ink-700); max-width: 720px;
  margin: 0 0 30px;
}
.lead strong { color: var(--navy-900); }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
/* Hero floating cards */
.hero-grid {
  margin-top: 64px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.card-stub {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow-sm);
  transform: translateY(8px); opacity: 0;
  animation: rise .55s cubic-bezier(.2,.7,.2,1) forwards;
  animation-delay: calc(var(--d) * 90ms + 100ms);
}
.card-stub p { margin: 8px 0 0; font-size: 14px; color: var(--ink-700); }
.chip {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--navy-900); background: var(--bg-soft); padding: 4px 10px; border-radius: 999px;
}
.chip-accent { background: var(--teal-50); color: var(--teal-500); }

@keyframes rise { to { transform: translateY(0); opacity: 1; } }

/* ---- Proof ---- */
.proof {
  padding: 28px 0; background: var(--navy-900); color: #fff;
}
.proof-line {
  margin: 0; text-align: center; font-size: 17px; color: rgba(255,255,255,.85);
}
.proof-line strong { color: var(--amber-400); }

/* ---- Sections ---- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-soft); }
.section-dark {
  background:
    radial-gradient(700px 400px at 100% 0%, rgba(30,200,200,.12), transparent 60%),
    linear-gradient(180deg, var(--navy-900), var(--navy-800));
  color: #e6ecf5;
}

.kicker {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--teal-500);
  margin: 0 0 14px;
}
.kicker-light { color: var(--teal-400); }

h2 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.12; letter-spacing: -0.015em;
  margin: 0 0 18px; color: var(--navy-900);
}
.h2-light { color: #fff; }
h3 { font-size: 17px; margin: 0 0 6px; color: var(--navy-900); font-weight: 600; }
.section-dark h3 { color: #fff; }
p { margin: 0 0 12px; color: var(--ink-700); }
.section-dark p { color: rgba(230,236,245,.78); }

.lead-soft { font-size: 18px; color: var(--ink-500); max-width: 640px; }
.lead-light { color: rgba(255,255,255,.85); }

/* Bullets */
.bullets {
  list-style: none; padding: 0; margin: 36px 0 0;
  display: grid; gap: 24px;
}
.bullets-3 { grid-template-columns: repeat(3, 1fr); }
.bullets li { padding: 0; }
.bullets h3 { margin-bottom: 6px; }
.bullets p { font-size: 15px; color: var(--ink-500); }

.two-col-equal {
  display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start;
}

/* Feature grid (dark) */
.feature-grid {
  margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.feature {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color .2s, transform .2s, background .2s;
}
.feature:hover {
  border-color: var(--teal-400); transform: translateY(-2px);
  background: rgba(255,255,255,.06);
}
.feature-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(30,200,200,.15); color: var(--teal-400);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.feature-icon svg { width: 22px; height: 22px; }
.feature p { font-size: 14px; }

/* Tile grids */
.grid-3, .grid-4 {
  margin-top: 36px; display: grid; gap: 18px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.tile {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm);
  transition: transform .15s, box-shadow .2s, border-color .2s;
}
.tile:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: rgba(30,200,200,.4); }
.tile p { font-size: 14px; color: var(--ink-500); margin: 0; }
.tile-accent {
  background: linear-gradient(135deg, var(--teal-50), #fff);
  border-color: rgba(30,200,200,.4);
}

.tile-dark {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius); padding: 22px;
}
.tile-dark p { font-size: 14px; }

.pullquote {
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 30px); line-height: 1.25;
  color: #fff; max-width: 780px;
  border-left: 3px solid var(--teal-400);
  padding: 4px 0 4px 22px; margin: 18px 0 12px;
}
.footnote-light { color: rgba(255,255,255,.7); margin-top: 28px; font-size: 14px; }

/* Sovereignty panels */
.panel {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow-sm);
}
.panel-accent {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800));
  color: #fff; border-color: transparent;
}
.panel-accent h2, .panel-accent .kicker { color: #fff; }
.panel-accent .kicker { color: var(--teal-400); }
.ticks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 12px; }
.ticks li {
  position: relative; padding-left: 28px;
  color: var(--ink-700); font-size: 15px;
}
.panel-accent .ticks li { color: rgba(255,255,255,.88); }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--teal-50);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='%231ec8c8' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round' d='M3.5 8.5l3 3 6-7'/></svg>");
  background-repeat: no-repeat; background-position: center;
}
.panel-accent .ticks li::before {
  background-color: rgba(30,200,200,.18);
}

/* Roadmap */
.timeline {
  margin-top: 36px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
.phase {
  border-radius: var(--radius-lg); padding: 26px;
  border: 1px solid var(--line); background: #fff;
}
.phase-label {
  display: inline-block; font-size: 11px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px; margin-bottom: 12px;
}
.phase-now    { border-color: rgba(30,200,200,.4); background: linear-gradient(160deg, var(--teal-50), #fff); }
.phase-now .phase-label    { background: var(--teal-500); color: #fff; }
.phase-build  .phase-label { background: var(--amber-300); color: var(--navy-900); }
.phase-next   { background: var(--bg-soft); }
.phase-next   .phase-label { background: var(--ink-300); color: #fff; }
.phase ul { margin: 0; padding-left: 18px; color: var(--ink-700); font-size: 15px; }
.phase ul li { margin-bottom: 6px; }
.phase p { margin: 0; font-size: 15px; }

/* CTA */
.cta-section {
  background:
    radial-gradient(800px 400px at 90% 10%, rgba(30,200,200,.25), transparent 60%),
    linear-gradient(160deg, var(--navy-900), var(--navy-800));
  color: #fff;
  padding: 110px 0;
}
.cta-inner { text-align: center; max-width: 820px; margin: 0 auto; }
.cta-inner .cta-row { justify-content: center; margin-top: 24px; }
.accent-text { color: var(--teal-400); }

/* Footer */
.site-footer {
  background: #061327; color: rgba(255,255,255,.7);
  padding: 56px 0 24px;
}
.site-footer a { color: rgba(255,255,255,.7); }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px;
}
.brand-footer { color: #fff; }
.brand-footer:hover { color: #fff; }
.footer-blurb { font-size: 14px; max-width: 280px; margin-top: 14px; }
.site-footer h4 {
  font-size: 13px; text-transform: uppercase; letter-spacing: .12em;
  color: #fff; margin: 0 0 14px;
}
.site-footer nav { display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.footer-bottom {
  margin-top: 40px; padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.08);
  color: rgba(255,255,255,.5); font-size: 13px;
}

/* ---- Responsive ---- */
@media (max-width: 980px) {
  .bullets-3, .grid-3, .grid-4, .feature-grid, .timeline, .hero-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .two-col-equal { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1024px) {
  .nav-toggle { display: inline-flex; }
  .nav-divider { display: none; }
  .primary-nav {
    position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px 24px 18px;
    box-shadow: var(--shadow);
    display: none;
    white-space: normal;
  }
  .primary-nav.open { display: flex; }
  .primary-nav a {
    padding: 12px 0; border-bottom: 1px solid var(--line);
    text-align: left;
  }
  .primary-nav a:last-child { border-bottom: none; }
  .primary-nav a.btn { align-self: flex-start; margin-top: 8px; }
  .primary-nav a.btn,
  .primary-nav a.nav-cta,
  .primary-nav a.nav-cta-sm { border-bottom: none; padding: 10px 18px; }
}
@media (max-width: 720px) {
  .placeholder-flag { display: none; }
  .hero { padding: 56px 0 70px; }
  .section { padding: 64px 0; }
  .cta-section { padding: 80px 0; }
  .bullets-3, .grid-3, .grid-4, .feature-grid, .timeline, .hero-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}