/* ── AirshowWorld web pages ──────────────────────────────────────────────── */
/* Palette mirrors the iOS app: navy #1A3A6B · teal #009EC7 · bg #F0F4F8     */

:root {
  --navy:   #1A3A6B;
  --teal:   #009EC7;
  --bg:     #F0F4F8;
  --card:   #FFFFFF;
  --text:   #1A1A2E;
  --muted:  #6B7280;
  --border: #E5EAF2;
  --radius: 16px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
header {
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: 56px 24px 48px;
  text-align: center;
}

/* Chevron pattern (SVG data-uri) */
header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpolyline points='15,10 30,30 15,50' fill='none' stroke='%23009EC7' stroke-width='2.5' stroke-opacity='0.12'/%3E%3Cpolyline points='30,10 45,30 30,50' fill='none' stroke='%23009EC7' stroke-width='2.5' stroke-opacity='0.12'/%3E%3C/svg%3E");
  background-size: 60px 60px;
  pointer-events: none;
}

.header-inner { position: relative; max-width: 720px; margin: 0 auto; }

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  border-radius: 18px;
  background: var(--teal);
  margin-bottom: 18px;
  font-size: 30px;
  box-shadow: 0 8px 24px rgba(0,158,199,.45);
}

header h1 {
  font-size: clamp(24px, 5vw, 36px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.5px;
  margin-bottom: 6px;
}

header .subtitle {
  font-size: 15px;
  color: rgba(255,255,255,.65);
  font-weight: 400;
}

/* ── Nav ─────────────────────────────────────────────────────────────────── */
nav {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 0 16px 12px;
}

nav a {
  color: rgba(255,255,255,.6);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 20px;
  transition: background .2s, color .2s;
}

nav a:hover, nav a.active {
  background: rgba(0,158,199,.25);
  color: var(--teal);
}

/* ── Main layout ─────────────────────────────────────────────────────────── */
main {
  max-width: 760px;
  margin: 48px auto 80px;
  padding: 0 20px;
}

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 20px;
  box-shadow: 0 2px 12px rgba(26,58,107,.06);
}

/* ── Section heading ─────────────────────────────────────────────────────── */
.card h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card h2 .icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: rgba(0,158,199,.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  margin: 18px 0 6px;
}

.card p, .card li {
  font-size: 15px;
  color: #374151;
  margin-bottom: 8px;
}

.card ul, .card ol {
  padding-left: 20px;
  margin-bottom: 8px;
}

.card li { margin-bottom: 4px; }

.card a {
  color: var(--teal);
  text-decoration: none;
  font-weight: 500;
}
.card a:hover { text-decoration: underline; }

/* ── Badge / pill ────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  background: rgba(0,158,199,.12);
  color: var(--teal);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  margin-right: 4px;
  margin-bottom: 4px;
}

/* ── Callout (highlight box) ─────────────────────────────────────────────── */
.callout {
  background: rgba(0,158,199,.07);
  border-left: 3px solid var(--teal);
  border-radius: 0 8px 8px 0;
  padding: 12px 16px;
  margin: 12px 0;
  font-size: 14px;
  color: var(--navy);
}

/* ── Divider ─────────────────────────────────────────────────────────────── */
hr { border: none; border-top: 1px solid var(--border); margin: 18px 0; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 24px 20px 40px;
  font-size: 13px;
  color: var(--muted);
}

footer a { color: var(--teal); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ── Updated date chip ───────────────────────────────────────────────────── */
.meta {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 560px) {
  .card { padding: 20px 18px; }
  header { padding: 40px 16px 36px; }
}