/* =========================================================
   Bastion — Project Pages
   Design tokens (brand from the Android app icon)
   70-20-10: navy field / brand-blue structure / gold accent
   ========================================================= */
:root {
  --navy-900: #071A30;
  --navy-800: #0B2E52;
  --navy-700: #103A66;
  --navy-600: #15487e;

  --blue-500: #1E6FC0;
  --blue-400: #5FB0F2;
  --blue-300: #9FD4FF;

  --gold-500: #F5B942;
  --gold-300: #FFE6A8;
  --gold-700: #B9760F;

  --text: #EAF2FB;
  --text-dim: #A9BBD0;
  --text-faint: #7E93AD;

  --glass-bg: rgba(255, 255, 255, 0.055);
  --glass-brd: rgba(159, 212, 255, 0.20);
  --glass-brd-strong: rgba(159, 212, 255, 0.42);

  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;

  --shadow-card: 0 18px 48px -22px rgba(3, 14, 28, 0.85);
  --shadow-gold: 0 14px 34px -12px rgba(245, 185, 66, 0.5);

  --maxw: 1120px;
  --font-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(31, 111, 192, 0.28), transparent 60%),
    radial-gradient(820px 480px at -5% 4%, rgba(245, 185, 66, 0.10), transparent 55%),
    linear-gradient(180deg, #071A30 0%, #0B2E52 46%, #061426 100%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}
/* film-grain / noise for depth (no flat color) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; position: relative; z-index: 1; }
section { padding-block: clamp(56px, 9vw, 104px); position: relative; z-index: 1; }
main { position: relative; z-index: 1; }

/* ---------- typography ---------- */
h1, h2, h3 { font-family: var(--font-display); line-height: 1.1; letter-spacing: -0.02em; margin: 0; font-weight: 800; }
h1 { font-size: clamp(2.4rem, 6.4vw, 4.1rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.7rem); }
h3 { font-size: 1.22rem; font-weight: 700; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 700; font-size: 0.82rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--blue-300);
  padding: 6px 14px; border: 1px solid var(--glass-brd); border-radius: 999px;
  background: var(--glass-bg); backdrop-filter: blur(8px);
}
.lead { color: var(--text-dim); font-size: clamp(1.05rem, 2.2vw, 1.22rem); max-width: 60ch; }
.gold { color: var(--gold-500); }

/* ---------- buttons (>=44px targets) ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 50px; padding: 0 26px; border-radius: 999px;
  font-family: var(--font-display); font-weight: 700; font-size: 1rem;
  cursor: pointer; border: 1px solid transparent; transition: transform .18s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500) 55%, var(--gold-700));
  color: #071A30; box-shadow: var(--shadow-gold);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 20px 44px -12px rgba(245, 185, 66, 0.62); }
.btn-ghost {
  background: var(--glass-bg); border-color: var(--glass-brd-strong); color: var(--text);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { border-color: var(--blue-300); transform: translateY(-2px); background: rgba(159, 212, 255, 0.10); }
.btn svg { width: 20px; height: 20px; }

/* focus visibility (a11y) */
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--blue-300); outline-offset: 3px; border-radius: 999px;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(7, 26, 48, 0.82), rgba(7, 26, 48, 0.42));
  border-bottom: 1px solid rgba(159, 212, 255, 0.10);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 70px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 800; font-size: 1.22rem; }
.brand .shield-mini { width: 34px; height: 34px; filter: drop-shadow(0 4px 12px rgba(31, 111, 192, 0.5)); }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 10px 14px; min-height: 44px; display: inline-flex; align-items: center;
  color: var(--text-dim); border-radius: 10px; font-weight: 600; font-size: 0.96rem; transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: rgba(159, 212, 255, 0.08); }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; }
.nav-toggle { display: none; background: var(--glass-bg); border: 1px solid var(--glass-brd); border-radius: 12px; width: 46px; height: 46px; color: var(--text); cursor: pointer; }
.nav-toggle svg { width: 24px; height: 24px; margin: auto; }

/* ---------- hero ---------- */
.hero { padding-top: clamp(40px, 7vw, 80px); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.hero h1 { margin-top: 18px; }
.hero .lead { margin-top: 22px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; font-size: 0.9rem; font-weight: 600; color: var(--text-dim);
  padding: 8px 14px; border-radius: 999px; border: 1px solid var(--glass-brd); background: var(--glass-bg);
}
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold-500); box-shadow: 0 0 10px var(--gold-500); }

/* feature tag pills */
.tags-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag-pill {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.82rem; font-weight: 600; color: var(--blue-300);
  padding: 5px 12px; border-radius: 999px;
  border: 1px solid rgba(159, 212, 255, 0.30);
  background: rgba(159, 212, 255, 0.06);
}

/* shield hero visual */
.shield-stage {
  position: relative; display: grid; place-items: center; min-height: 440px;
  border-radius: var(--radius-lg); overflow: hidden;
  background:
    radial-gradient(60% 60% at 50% 42%, rgba(31, 111, 192, 0.20), transparent 70%),
    radial-gradient(40% 40% at 72% 78%, rgba(245, 185, 66, 0.12), transparent 70%);
}
.shield-stage::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background-image: radial-gradient(rgba(159, 212, 255, 0.10) 1px, transparent 1.4px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 45%, #000 30%, transparent 75%);
          mask-image: radial-gradient(70% 70% at 50% 45%, #000 30%, transparent 75%);
}
.shield-glow {
  position: absolute; width: 70%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 124, 200, 0.55), transparent 62%);
  filter: blur(30px); animation: pulse 6s ease-in-out infinite;
}
.shield-art {
  position: relative; width: min(420px, 86%); filter: drop-shadow(0 30px 60px rgba(3, 14, 28, 0.6));
  animation: float 7s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes pulse { 0%,100% { opacity: .7; } 50% { opacity: 1; } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- section heading ---------- */
.sec-head { max-width: 720px; margin-bottom: clamp(34px, 5vw, 56px); }
.sec-head h2 { margin-top: 16px; }
.sec-head .lead { margin-top: 14px; }

/* ---------- feature cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--glass-bg); border: 1px solid var(--glass-brd); border-radius: var(--radius-md);
  padding: 26px 24px; backdrop-filter: blur(10px); box-shadow: var(--shadow-card);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--glass-brd-strong); background: rgba(159, 212, 255, 0.07); }
.card .ico {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(150deg, rgba(95, 176, 242, 0.25), rgba(31, 111, 192, 0.12));
  border: 1px solid var(--glass-brd); color: var(--blue-300); margin-bottom: 18px;
}
.card .ico svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--text-dim); font-size: 0.98rem; margin: 0; }

/* ---------- security split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 60px); align-items: center; }
.checklist { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 14px; align-items: flex-start; color: var(--text-dim); }
.checklist .ck {
  flex: none; width: 28px; height: 28px; border-radius: 9px; display: grid; place-items: center;
  background: rgba(245, 185, 66, 0.14); border: 1px solid rgba(245, 185, 66, 0.4); color: var(--gold-500); margin-top: 2px;
}
.checklist .ck svg { width: 16px; height: 16px; }
.checklist strong { color: var(--text); font-weight: 700; }
.security-visual {
  position: relative; border-radius: var(--radius-lg); padding: 30px; min-height: 300px;
  border: 1px solid var(--glass-brd); background: var(--glass-bg); backdrop-filter: blur(12px);
  display: grid; place-items: center; overflow: hidden;
}
.security-visual .lock { width: 130px; filter: drop-shadow(0 16px 30px rgba(3, 14, 28, 0.5)); }
.security-visual .tag {
  position: absolute; font-size: 0.78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 7px 13px; border-radius: 999px; border: 1px solid var(--glass-brd); background: rgba(7, 26, 48, 0.6); color: var(--blue-300);
}
.security-visual .tag.t1 { top: 22px; left: 22px; }
.security-visual .tag.t2 { bottom: 22px; right: 22px; color: var(--gold-500); border-color: rgba(245, 185, 66, 0.4); }

/* ---------- download CTA ---------- */
.cta-panel {
  position: relative; border-radius: var(--radius-lg); padding: clamp(34px, 5vw, 60px);
  border: 1px solid var(--glass-brd-strong); overflow: hidden;
  background:
    radial-gradient(600px 300px at 100% 0%, rgba(31, 111, 192, 0.30), transparent 60%),
    var(--glass-bg);
  backdrop-filter: blur(12px); text-align: center;
}
.cta-panel::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(120deg, transparent 40%, rgba(245, 185, 66, 0.10) 50%, transparent 60%);
}
.cta-panel h2 { position: relative; }
.cta-panel .lead { position: relative; margin-inline: auto; }
.cta-actions { position: relative; display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 30px; }
.note { position: relative; margin-top: 18px; font-size: 0.9rem; color: var(--text-faint); }

/* ---------- footer ---------- */
.footer { border-top: 1px solid rgba(159, 212, 255, 0.10); padding-block: 46px 60px; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.footer h4 { font-family: var(--font-display); font-size: 0.82rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); margin: 0 0 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer a { color: var(--text-dim); font-size: 0.95rem; transition: color .2s; }
.footer a:hover { color: var(--text); }
.footer .brand { margin-bottom: 14px; }
.footer .about { color: var(--text-dim); font-size: 0.95rem; max-width: 34ch; }
.footer-bottom { margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(159, 212, 255, 0.08); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; color: var(--text-faint); font-size: 0.88rem; }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .shield-stage { order: -1; min-height: 280px; }
  .split { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; align-items: stretch; gap: 4px;
    position: absolute; top: 70px; left: 0; right: 0; padding: 14px 22px 22px;
    background: rgba(7, 26, 48, 0.97); border-bottom: 1px solid var(--glass-brd);
  }
  .nav.open .nav-links a { min-height: 48px; }
  .cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .shield-stage { min-height: 220px; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; justify-content: center; }
  .chips { gap: 6px; }
  .tags-row { gap: 6px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* touch devices: disable hover-only transforms */
@media (hover: none) {
  .card:hover { transform: none; border-color: var(--glass-brd); background: var(--glass-bg); }
  .btn-gold:hover { transform: none; }
  .btn-ghost:hover { transform: none; border-color: var(--glass-brd-strong); background: var(--glass-bg); }
}