/* ---------- Base ---------- */
:root {
  color-scheme: light;
  --navy-950: #070F1F;
  --navy-900: #0B1B33;
  --navy-800: #101830;
  --navy-700: #182238;
  --navy-600: #26314D;
  --navy-500: #3A4A6B;
  --navy-400: #5C6E93;
  --navy-300: #8B9CC0;
  --navy-200: #B4BFD6;
  --navy-100: #DDE2EC;
  --navy-50:  #EEF1F6;
  --teal-900: #063A38;
  --teal-800: #084E4C;
  --teal-700: #0A6461;
  --teal-600: #0B7E79;
  --teal-500: #0E9A94;
  --teal-400: #3FCBBB;
  --teal-300: #79E0D4;
  --teal-200: #A6ECE3;
  --teal-100: #D2F5F1;
  --teal-50:  #E9FBF9;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: #ffffff;
  color: var(--navy-900);
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

/* ---------- Layout helpers ---------- */
.container-page {
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  max-width: 80rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
@media (min-width: 1024px) {
  .container-page { padding-left: 2rem; padding-right: 2rem; }
}

.section { padding-top: 5rem; padding-bottom: 5rem; }
@media (min-width: 1024px) {
  .section { padding-top: 7rem; padding-bottom: 7rem; }
}

/* ---------- Typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  border-radius: 9999px; background: var(--teal-50);
  padding: 0.4rem 1rem; font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em; color: var(--teal-700);
  box-shadow: inset 0 0 0 1px var(--teal-200);
}
.h1 { font-size: 2.25rem; font-weight: 700; letter-spacing: -0.02em; color: var(--navy-900); line-height: 1.15; margin: 0; }
@media (min-width: 640px) { .h1 { font-size: 3rem; } }
@media (min-width: 1024px) { .h1 { font-size: 3.5rem; } }

.h2 { font-size: 1.875rem; font-weight: 700; letter-spacing: -0.02em; color: var(--navy-900); margin: 0; }
@media (min-width: 640px) { .h2 { font-size: 2.25rem; } }

.h3 { font-size: 1.25rem; font-weight: 600; color: var(--navy-900); margin: 0; }

.lede { font-size: 1.125rem; color: var(--navy-500); margin: 0; }
@media (min-width: 640px) { .lede { font-size: 1.25rem; } }

/* ---------- Cards ---------- */
.card {
  border-radius: 1rem;
  border: 1px solid var(--navy-100);
  background: #ffffff;
  padding: 1.5rem;
  box-shadow: 0 1px 2px rgba(11,27,51,0.06), 0 8px 24px rgba(11,27,51,0.08);
  transition: box-shadow 0.2s ease;
}
.card:hover { box-shadow: 0 4px 12px rgba(11,27,51,0.10), 0 16px 40px rgba(11,27,51,0.12); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  border-radius: 0.5rem; padding: 0.75rem 1.25rem; font-size: 0.875rem; font-weight: 600;
  border: none; cursor: pointer; transition: all 0.15s ease;
}
.btn-primary { background: var(--teal-500); color: #fff; box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
.btn-primary:hover { background: var(--teal-600); }
.btn-secondary { background: #fff; color: var(--navy-900); box-shadow: inset 0 0 0 1px var(--navy-200); }
.btn-secondary:hover { background: var(--navy-50); }
.btn-ghost-inverse { background: rgba(255,255,255,0.1); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.25); }
.btn-ghost-inverse:hover { background: rgba(255,255,255,0.2); }

/* ---------- Badges ---------- */
.badge { display: inline-flex; flex-shrink: 0; align-items: center; border-radius: 9999px; padding: 0.3rem 0.75rem; font-size: 0.75rem; font-weight: 600; line-height: 1.2; white-space: nowrap; }
.badge-live { background: var(--teal-50); color: var(--teal-700); box-shadow: inset 0 0 0 1px var(--teal-200); }
.badge-planned { background: var(--navy-50); color: var(--navy-500); box-shadow: inset 0 0 0 1px var(--navy-200); }

/* ---------- Backgrounds ---------- */
.bg-navy-gradient {
  background:
    radial-gradient(45% 65% at 80% 10%, rgba(63,203,187,0.30) 0%, rgba(63,203,187,0) 70%),
    linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 45%, var(--teal-700) 100%);
}
.bg-hero-glow { background: radial-gradient(60% 60% at 50% 0%, rgba(14,154,148,0.18) 0%, rgba(11,27,51,0) 70%); }

/* ---------- Icon circle ---------- */
.icon-tile {
  display: flex; align-items: center; justify-content: center;
  height: 2.75rem; width: 2.75rem; border-radius: 0.75rem;
  background: var(--teal-50); color: var(--teal-600); box-shadow: inset 0 0 0 1px var(--teal-100);
}
.icon-tile svg, .icon-tile i { width: 20px; height: 20px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--navy-100);
}
.site-header .bar { display: flex; align-items: center; justify-content: space-between; height: 4rem; }
@media (min-width: 1024px) { .site-header .bar { height: 5rem; } }
.nav-links { display: none; align-items: center; gap: 1.75rem; }
.nav-links a { font-size: 0.875rem; font-weight: 500; color: var(--navy-600); }
.nav-links a:hover { color: var(--navy-900); }
.header-ctas { display: none; align-items: center; gap: 0.75rem; }
.mobile-toggle {
  display: flex; align-items: center; justify-content: center;
  height: 2.5rem; width: 2.5rem; border-radius: 0.5rem; box-shadow: inset 0 0 0 1px var(--navy-200);
  background: transparent; cursor: pointer;
}
.mobile-menu { display: none; border-top: 1px solid var(--navy-100); background: #fff; }
.mobile-menu.open { display: block; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 0.25rem; padding: 1rem 0; }
.mobile-menu nav a { padding: 0.65rem 0.75rem; border-radius: 0.5rem; font-size: 0.875rem; font-weight: 500; color: var(--navy-600); }
.mobile-menu nav a:hover { background: var(--navy-50); color: var(--navy-900); }
@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .header-ctas { display: flex; }
  .mobile-toggle { display: none; }
  .mobile-menu { display: none !important; }
}

.logo { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 1.125rem; font-weight: 700; letter-spacing: -0.01em; }
.logo-mark { display: flex; align-items: center; justify-content: center; height: 2rem; width: 2rem; border-radius: 0.5rem; background: var(--navy-900); }
.logo-mark.inverse { background: rgba(255,255,255,0.1); box-shadow: inset 0 0 0 1px rgba(255,255,255,0.25); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: #fff; border-top: 1px solid var(--navy-100); }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; padding: 4rem 0; }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer-grid h4 { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--navy-300); margin: 0 0 1rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.75rem; }
.footer-grid a { font-size: 0.875rem; color: var(--navy-200); }
.footer-grid a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); }
.footer-bottom-inner { display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.5rem 0; font-size: 0.75rem; color: var(--navy-400); }
@media (min-width: 640px) { .footer-bottom-inner { flex-direction: row; } }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1fr; gap: 4rem; align-items: center; padding: 5rem 0; }
@media (min-width: 1024px) { .hero-inner { grid-template-columns: 1fr 1fr; padding: 7rem 0; } }
.page-hero-inner { position: relative; padding: 5rem 0; }
@media (min-width: 1024px) { .page-hero-inner { padding: 7rem 0; } }

/* ---------- Utility ---------- */
.text-white { color: #fff; }
.text-navy-200 { color: var(--navy-200); }
.text-navy-300 { color: var(--navy-300); }
.text-navy-400 { color: var(--navy-400); }
.text-navy-500 { color: var(--navy-500); }
.text-teal-300 { color: var(--teal-300); }
.text-teal-700 { color: var(--teal-700); }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }
.gap-6 { gap: 1.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-9 { margin-top: 2.25rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
@media (min-width: 640px) { .sm\:flex-row { flex-direction: row; } }
@media (min-width: 1024px) { .lg\:flex-row { flex-direction: row; } .lg\:items-end { align-items: flex-end; } }

/* ---------- Diagram card ---------- */
.diagram-frame { border-radius: 1.5rem; background: rgba(255,255,255,0.04); padding: 1.5rem; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.1); backdrop-filter: blur(4px); }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; border-radius: 1.5rem; padding: 4rem 2rem; text-align: center; }
@media (min-width: 640px) { .cta-band { padding: 4rem 4rem; } }

/* ---------- Forms ---------- */
label.field-label { display: block; margin-bottom: 0.4rem; font-size: 0.875rem; font-weight: 500; color: var(--navy-700, var(--navy-500)); }
input.field, select.field, textarea.field {
  width: 100%; border-radius: 0.5rem; border: 1px solid var(--navy-200);
  padding: 0.65rem 0.9rem; font-size: 0.95rem; color: var(--navy-900); font-family: inherit;
  background: #fff;
}
input.field:focus, select.field:focus, textarea.field:focus {
  outline: none; border-color: var(--teal-500); box-shadow: 0 0 0 1px var(--teal-500);
}

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--navy-100); }
.faq-item:last-child { border-bottom: none; }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.25rem 1.5rem; text-align: left; background: none; border: none; cursor: pointer;
  font-weight: 600; color: var(--navy-900); font-size: 1rem; font-family: inherit;
}
.faq-answer { display: none; padding: 0 1.5rem 1.25rem; color: var(--navy-500); }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-icon { transition: transform 0.15s ease; color: var(--teal-600); flex-shrink: 0; }
.faq-wrap { border: 1px solid var(--navy-100); border-radius: 1rem; background: #fff; box-shadow: 0 1px 2px rgba(11,27,51,0.06), 0 8px 24px rgba(11,27,51,0.08); overflow: hidden; }