/* ============================================================
   GoodSeat — Stratosphere Dark marketing + legal site
   Shared design system. Dark base #0A0A0A, "Glow" accent #A5F5F5.
   System fonts (matches the app); mono used only as an aviation
   departure-board motif on labels/codes.
   ============================================================ */

:root {
  /* Neutrals tinted toward the teal/cyan brand hue */
  --bg:        #070a0b;
  --bg-elev:   #0d1214;
  --bg-card:   #10171a;
  --line:      color-mix(in oklab, #a5f5f5 14%, transparent);
  --line-soft: color-mix(in oklab, #a5f5f5 8%, transparent);

  --glow:      #a5f5f5;   /* the signature "Glow" */
  --glow-deep: #58c9c9;
  --glow-ink:  #052426;   /* text that sits ON the glow */

  --text:      #e8f1f1;
  --text-dim:  #a7bcbc;
  --muted:     #6f8788;

  --amber:     #f5c77e;   /* boarding-board secondary accent */

  --radius:    16px;
  --radius-sm: 10px;
  --maxw:      1120px;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Roboto Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, system-ui, sans-serif;

  --step--1: clamp(0.82rem, 0.79rem + 0.15vw, 0.9rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.5vw, 1.45rem);
  --step-2:  clamp(1.55rem, 1.35rem + 1vw, 2.1rem);
  --step-3:  clamp(2.1rem, 1.7rem + 2vw, 3.2rem);
  --step-4:  clamp(2.8rem, 2.1rem + 3.6vw, 5.2rem);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

/* Ambient glow field behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 45% at 78% -5%, color-mix(in oklab, var(--glow) 16%, transparent), transparent 70%),
    radial-gradient(50% 40% at 8% 8%, color-mix(in oklab, var(--glow-deep) 10%, transparent), transparent 65%);
  pointer-events: none;
}
/* Faint flight-grid texture */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 20%, transparent 80%);
  opacity: 0.5;
  pointer-events: none;
}

a { color: var(--glow); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.wrap { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }

/* ---------- Departure-board eyebrow label ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--glow);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--glow);
  box-shadow: 0 0 8px var(--glow);
}

/* ---------- Header ---------- */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--line-soft);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-weight: 700; letter-spacing: 0.02em; font-size: 1.12rem;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 30px; height: 30px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 9px;
  background: color-mix(in oklab, var(--glow) 8%, transparent);
}
.brand .mark svg { width: 17px; height: 17px; }
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { color: var(--text-dim); font-size: var(--step--1); letter-spacing: 0.04em; }
.nav-links a:hover { color: var(--glow); text-decoration: none; }
@media (max-width: 720px){ .nav-links { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: var(--step--1); letter-spacing: 0.03em;
  padding: 0.7rem 1.2rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s, background .25s;
}
.btn-primary {
  background: var(--glow); color: var(--glow-ink);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--glow) 60%, transparent);
}
.btn-primary:hover {
  text-decoration: none; transform: translateY(-2px);
  box-shadow: 0 10px 30px -8px color-mix(in oklab, var(--glow) 55%, transparent);
}
.btn-ghost {
  background: transparent; color: var(--text); border-color: var(--line);
}
.btn-ghost:hover { text-decoration: none; border-color: var(--glow); color: var(--glow); }

/* ---------- Hero ---------- */
.hero { padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(2.5rem, 5vw, 4rem); }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
@media (max-width: 900px){ .hero-grid { grid-template-columns: 1fr; } }

.hero h1 {
  font-size: var(--step-4);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 1.1rem 0 1.1rem;
}
.hero h1 .glow { color: var(--glow); text-shadow: 0 0 40px color-mix(in oklab, var(--glow) 45%, transparent); }
.hero p.lede { font-size: var(--step-1); color: var(--text-dim); max-width: 44ch; margin: 0 0 2rem; line-height: 1.5; }
.hero-cta { display: flex; gap: 0.9rem; flex-wrap: wrap; align-items: center; }
.store-row { display: flex; gap: 0.7rem; flex-wrap: wrap; margin-top: 1.6rem; }

.store-badge {
  display: inline-flex; align-items: center; gap: 0.6rem;
  border: 1px solid var(--line); border-radius: 12px;
  padding: 0.55rem 0.95rem; color: var(--text);
  background: color-mix(in oklab, var(--bg-elev) 70%, transparent);
  transition: border-color .25s, transform .25s;
}
.store-badge:hover { text-decoration: none; border-color: var(--glow); transform: translateY(-2px); }
.store-badge small { display: block; font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.store-badge strong { font-size: 0.98rem; font-weight: 600; }
.store-badge svg { width: 22px; height: 22px; fill: var(--text); }

/* ---------- Boarding pass hero card ---------- */
.pass {
  position: relative;
  background: linear-gradient(160deg, var(--bg-card), color-mix(in oklab, var(--bg-card) 70%, #000));
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.5rem 1.6rem 1.3rem;
  box-shadow: 0 40px 90px -50px color-mix(in oklab, var(--glow) 50%, transparent),
              inset 0 1px 0 color-mix(in oklab, #fff 6%, transparent);
  overflow: hidden;
}
.pass::after { /* perforation */
  content: ""; position: absolute; left: 0; right: 0; bottom: 84px;
  border-top: 1.5px dashed var(--line);
}
.pass .route { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.pass .code { font-family: var(--mono); font-size: 2rem; font-weight: 700; color: var(--text); letter-spacing: 0.02em; }
.pass .city { font-size: 0.72rem; color: var(--muted); letter-spacing: 0.18em; text-transform: uppercase; }
.pass .arc { flex: 1; height: 40px; }
.pass-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.7rem; margin: 1.4rem 0 1rem; }
.pass-meta .k { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.pass-meta .v { font-size: 1rem; font-weight: 600; color: var(--text); margin-top: 2px; }
.pass-meta .v.hi { color: var(--glow); }
.seatmap { display: flex; gap: 5px; align-items: center; padding-top: 0.9rem; }
.seatmap i {
  width: 15px; height: 15px; border-radius: 4px; display: inline-block;
  background: color-mix(in oklab, var(--glow) 12%, transparent);
  border: 1px solid var(--line);
}
.seatmap i.taken { background: color-mix(in oklab, var(--text) 18%, transparent); border-color: transparent; }
.seatmap i.you { background: var(--glow); border-color: var(--glow); box-shadow: 0 0 14px var(--glow); }
.seatmap .gap { width: 10px; }

/* ---------- Section scaffolding ---------- */
section { padding: clamp(3rem, 7vw, 6rem) 0; }
.section-head { max-width: 60ch; margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.section-head h2 {
  font-size: var(--step-3); line-height: 1.06; letter-spacing: -0.02em; font-weight: 700;
  margin: 0.9rem 0 0.6rem;
}
.section-head p { color: var(--text-dim); font-size: var(--step-1); margin: 0; max-width: 48ch; }

/* ---------- Steps (how it works) ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; counter-reset: step; }
@media (max-width: 820px){ .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.step .no { font-family: var(--mono); color: var(--glow); font-size: 0.8rem; letter-spacing: 0.2em; }
.step h3 { font-size: var(--step-1); margin: 0.5rem 0 0.4rem; font-weight: 650; }
.step p { color: var(--text-dim); margin: 0; font-size: var(--step-0); }

/* ---------- Feature list (asymmetric, not identical cards) ---------- */
.features { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1.1rem; }
.feature {
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.6rem; background: color-mix(in oklab, var(--bg-elev) 55%, transparent);
  transition: border-color .3s, background .3s, transform .3s;
}
.feature:hover { border-color: var(--line); transform: translateY(-3px); background: var(--bg-elev); }
.feature .tag { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--glow); }
.feature h3 { font-size: var(--step-1); margin: 0.6rem 0 0.5rem; font-weight: 650; letter-spacing: -0.01em; }
.feature p { color: var(--text-dim); margin: 0; font-size: var(--step-0); }
.feature.lg { grid-column: span 3; }
.feature.md { grid-column: span 2; }
.feature.sm { grid-column: span 2; }
@media (max-width: 820px){ .feature, .feature.lg, .feature.md, .feature.sm { grid-column: 1 / -1; } .features { grid-template-columns: 1fr; } }

/* ---------- Trust strip ---------- */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; border-block: 1px solid var(--line); padding-block: 2.2rem; }
@media (max-width: 720px){ .trust { grid-template-columns: repeat(2, 1fr); } }
.trust .t .k { font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.trust .t .v { font-size: var(--step-2); font-weight: 700; letter-spacing: -0.02em; margin-top: 0.3rem; }
.trust .t .v em { color: var(--glow); font-style: normal; }

/* ---------- CTA band ---------- */
.cta {
  text-align: center; border: 1px solid var(--line); border-radius: 24px;
  padding: clamp(2.5rem, 6vw, 4.5rem) 1.5rem;
  background:
    radial-gradient(80% 120% at 50% -20%, color-mix(in oklab, var(--glow) 16%, transparent), transparent 70%),
    var(--bg-elev);
}
.cta h2 { font-size: var(--step-3); letter-spacing: -0.02em; margin: 0.4rem 0 0.7rem; }
.cta p { color: var(--text-dim); font-size: var(--step-1); margin: 0 auto 1.8rem; max-width: 42ch; }

/* ---------- Footer ---------- */
footer.site { border-top: 1px solid var(--line); padding: 3rem 0 2.5rem; margin-top: 2rem; }
.foot-grid { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; align-items: flex-start; }
.foot-links { display: flex; gap: 2.4rem; flex-wrap: wrap; }
.foot-col h4 { font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin: 0 0 0.9rem; }
.foot-col a { display: block; color: var(--text-dim); font-size: var(--step--1); margin-bottom: 0.55rem; }
.foot-col a:hover { color: var(--glow); text-decoration: none; }
.foot-bottom { margin-top: 2.5rem; padding-top: 1.6rem; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: var(--muted); font-size: var(--step--1); }

/* ============================================================
   LEGAL PAGES (privacy / terms)
   ============================================================ */
.legal-hero { padding: clamp(3rem, 7vw, 5rem) 0 1.5rem; border-bottom: 1px solid var(--line-soft); }
.legal-hero h1 { font-size: var(--step-3); letter-spacing: -0.02em; margin: 0.9rem 0 0.6rem; }
.legal-hero .updated { color: var(--muted); font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; }

.legal-layout { display: grid; grid-template-columns: 240px 1fr; gap: clamp(2rem, 5vw, 4rem); padding-top: 2.5rem; align-items: start; }
@media (max-width: 880px){ .legal-layout { grid-template-columns: 1fr; } .toc { position: static !important; } }

.toc { position: sticky; top: 90px; }
.toc h4 { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin: 0 0 0.9rem; }
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; }
.toc li { margin-bottom: 0.15rem; }
.toc a { counter-increment: toc; color: var(--text-dim); font-size: var(--step--1); display: block; padding: 0.4rem 0.7rem; border-radius: 8px; transition: color .2s, background .2s; }
.toc a::before { content: counter(toc, decimal-leading-zero) "  "; font-family: var(--mono); color: var(--muted); font-size: 0.75em; transition: color .2s; }
.toc a:hover { color: var(--glow); text-decoration: none; background: color-mix(in oklab, var(--glow) 8%, transparent); }
.toc a:hover::before { color: var(--glow); }

.legal-body { max-width: 68ch; }
.legal-body h2 { font-size: var(--step-2); letter-spacing: -0.01em; margin: 2.6rem 0 0.8rem; padding-top: 0.6rem; scroll-margin-top: 90px; }
.legal-body h2:first-child { margin-top: 0; }
.legal-body h2 .idx { font-family: var(--mono); color: var(--glow); font-size: 0.62em; margin-right: 0.55em; letter-spacing: 0.05em; }
.legal-body h2 .idx::before { content: "§"; opacity: 0.75; margin-right: 0.12em; }
.legal-body h3 { font-size: var(--step-1); margin: 1.6rem 0 0.5rem; font-weight: 620; }
.legal-body p, .legal-body li { color: var(--text-dim); }
.legal-body ul { padding-left: 1.2rem; }
.legal-body li { margin-bottom: 0.5rem; }
.legal-body strong { color: var(--text); font-weight: 620; }
.legal-body a { text-decoration: underline; text-underline-offset: 2px; }

.callout {
  position: relative;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--glow) 6%, transparent);
  border-radius: var(--radius-sm);
  padding: 1.15rem 1.3rem 1.15rem 2.9rem;
  margin: 1.6rem 0; color: var(--text-dim);
}
.callout::before { /* glowing marker instead of a side bar */
  content: "";
  position: absolute; left: 1.25rem; top: 1.55rem;
  width: 8px; height: 8px; border-radius: 2px;
  background: var(--glow);
  box-shadow: 0 0 12px var(--glow);
  transform: rotate(45deg);
}
.callout strong { color: var(--glow); }

.data-table { width: 100%; border-collapse: collapse; margin: 1.3rem 0; font-size: var(--step--1); }
.data-table th, .data-table td { text-align: left; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.data-table th { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.data-table td { color: var(--text-dim); }
.data-table td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }

/* ---------- Motion: staggered reveal on load ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(18px); animation: rise .9s cubic-bezier(.2,.8,.2,1) forwards; }
  .reveal.d1 { animation-delay: .05s; } .reveal.d2 { animation-delay: .13s; }
  .reveal.d3 { animation-delay: .21s; } .reveal.d4 { animation-delay: .29s; } .reveal.d5 { animation-delay: .37s; }
  @keyframes rise { to { opacity: 1; transform: none; } }
  .arc-path { stroke-dasharray: 220; stroke-dashoffset: 220; animation: draw 1.6s .3s cubic-bezier(.2,.8,.2,1) forwards; }
  @keyframes draw { to { stroke-dashoffset: 0; } }
}