/* infiDive — shared design system */

:root {
  --surface-0: #060a14;
  --surface-1: #0b1224;
  --surface-2: #121b33;
  --surface-3: #1a2540;
  --border: rgba(255, 255, 255, 0.08);
  --text-0: #f4f6fb;
  --text-1: #c4cbdc;
  --text-2: #8993ac;
  --accent: #5ee6d0;
  --accent-2: #7c8cff;
  --gradient-surface: linear-gradient(180deg, #0e1830 0%, #060a14 55%, #030509 100%);
  --gradient-accent: linear-gradient(120deg, #5ee6d0, #7c8cff);
  --radius: 16px;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", sans-serif;
  background: var(--gradient-surface);
  color: var(--text-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---- Nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(6, 10, 20, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-accent);
  box-shadow: 0 0 12px var(--accent);
}
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--text-1); font-size: 14px; }
.nav-links a:hover { color: var(--text-0); }
.nav-links .cta {
  background: var(--gradient-accent);
  color: #06101a;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
}

/* ---- Hero ---- */
.hero {
  padding: 96px 0 72px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(94, 230, 208, 0.35);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(34px, 5.5vw, 60px);
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #ffffff, #b9c3dc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  font-size: 19px;
  color: var(--text-1);
  max-width: 620px;
  margin: 0 auto 36px;
}

/* ---- Buttons ---- */
.btn-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.appstore-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #0c1424;
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--text-0);
  padding: 12px 22px;
  border-radius: 12px;
  font-size: 15px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.appstore-badge:hover { transform: translateY(-2px); border-color: var(--accent); }
.appstore-badge .glyph { font-size: 22px; line-height: 1; }
.appstore-badge .label small { display: block; font-size: 11px; color: var(--text-2); }
.appstore-badge .label strong { display: block; font-size: 16px; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text-1);
  font-size: 15px;
}
.btn-secondary:hover { color: var(--text-0); border-color: rgba(255,255,255,0.28); }

/* ---- Sections ---- */
section { padding: 64px 0; scroll-margin-top: 88px; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: clamp(26px, 4vw, 38px); margin: 0 0 12px; letter-spacing: -0.01em; }
.section-head p { color: var(--text-1); margin: 0; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 860px) { .grid-3 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.card .icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--gradient-accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
}
.card h3 { font-size: 18px; margin: 0 0 8px; }
.card p { color: var(--text-1); font-size: 14.5px; margin: 0; }

/* ---- Social proof band ---- */
.proof-band {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 8px 0;
}
.proof-stars { color: var(--accent); font-size: 20px; letter-spacing: 6px; margin-bottom: 18px; }
.proof-band blockquote {
  margin: 0 0 14px;
  font-size: clamp(19px, 2.6vw, 25px);
  line-height: 1.45;
  color: var(--text-0);
  font-weight: 500;
}
.proof-band cite { color: var(--text-2); font-style: normal; font-size: 14px; }

/* ---- Cast gallery ---- */
.cast-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 860px) { .cast-grid { grid-template-columns: repeat(2, 1fr); } }
.cast-card {
  margin: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  position: relative;
}
.cast-quote {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translate(-50%, -6px);
  background: rgba(6, 10, 20, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 12.5px;
  color: var(--text-0);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}
.cast-card:hover .cast-quote { opacity: 1; transform: translate(-50%, 0); }
.cast-card figcaption small {
  display: block;
  color: var(--text-2);
  font-size: 11.5px;
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.cast-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: contain;
  object-position: bottom;
  background: linear-gradient(180deg, var(--surface-3), var(--surface-2));
  display: block;
}
.cast-card figcaption {
  padding: 12px;
  font-size: 13.5px;
  color: var(--text-1);
}

/* ---- Steps ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; } }
.step { position: relative; padding-top: 12px; }
.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--surface-3);
  border: 1px solid var(--border);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 14px;
}
.step h4 { margin: 0 0 6px; font-size: 15.5px; }
.step p { color: var(--text-2); font-size: 13.5px; margin: 0; }

/* ---- Download CTA band ---- */
.cta-band {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 56px 40px;
  text-align: center;
}
.cta-band h2 { font-size: clamp(24px, 3.5vw, 34px); margin: 0 0 12px; }
.cta-band p { color: var(--text-1); margin: 0 0 28px; }

/* ---- Footer ---- */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  color: var(--text-2);
  font-size: 13.5px;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
footer a:hover { color: var(--text-0); }

/* ---- Pricing ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}
@media (max-width: 860px) { .pricing-grid { grid-template-columns: 1fr; } }
.plan {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
}
.plan.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(94,230,208,0.3), 0 20px 60px rgba(94,230,208,0.08);
  position: relative;
}
.plan.featured .badge {
  position: absolute; top: -13px; left: 28px;
  background: var(--gradient-accent);
  color: #06101a;
  font-size: 11.5px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px;
}
.plan .name { font-size: 15px; color: var(--text-2); text-transform: uppercase; letter-spacing: 0.08em; }
.plan .price { font-size: 36px; font-weight: 700; margin: 8px 0 4px; }
.plan .price span { font-size: 14px; color: var(--text-2); font-weight: 400; }
.plan .tagline { color: var(--text-1); font-size: 14px; margin-bottom: 20px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 28px; flex: 1; }
.plan li {
  padding: 9px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 14px;
  color: var(--text-1);
  display: flex;
  gap: 10px;
}
.plan li::before { content: "✦"; color: var(--accent); flex-shrink: 0; }
.plan .btn-secondary, .plan .appstore-badge { justify-content: center; }

.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 56px;
  font-size: 14px;
}
.compare-table th, .compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.compare-table th { color: var(--text-2); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.06em; }
.compare-table td:not(:first-child), .compare-table th:not(:first-child) { text-align: center; color: var(--text-1); }

/* ---- Docs ---- */
.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
}
@media (max-width: 860px) { .docs-layout { grid-template-columns: 1fr; } }
.docs-nav { position: sticky; top: 88px; align-self: start; }
.docs-nav a {
  display: block;
  padding: 8px 0;
  color: var(--text-2);
  font-size: 14px;
  border-left: 2px solid transparent;
  padding-left: 12px;
}
.docs-nav a:hover, .docs-nav a.active { color: var(--text-0); border-color: var(--accent); }

.docs-content h2 { font-size: 22px; margin: 48px 0 16px; }
.docs-content h2:first-child { margin-top: 0; }
.docs-content p { color: var(--text-1); }
.docs-content ol, .docs-content ul { color: var(--text-1); padding-left: 20px; }
.docs-content li { margin-bottom: 8px; }
.docs-content code {
  background: var(--surface-3);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 13px;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.faq-item h4 { margin: 0 0 8px; font-size: 15.5px; }
.faq-item p { margin: 0; font-size: 14px; }