:root {
  --bg: #081019;
  --bg-soft: #0d1723;
  --panel: rgba(10, 19, 30, 0.94);
  --panel-soft: rgba(16, 28, 42, 0.88);
  --line: rgba(149, 185, 214, 0.16);
  --text: #edf4fb;
  --muted: #90a7bd;
  --cyan: #89d0ff;
  --teal: #47d5c3;
  --amber: #f2c56a;
  --rose: #ff8f7d;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.34);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(71, 213, 195, 0.12), transparent 18%),
    radial-gradient(circle at 85% 12%, rgba(137, 208, 255, 0.12), transparent 22%),
    linear-gradient(180deg, #040912 0%, #081019 44%, #0b1420 100%);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(137, 208, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(137, 208, 255, 0.04) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.36), transparent 90%);
}
a { color: inherit; text-decoration: none; }
input, select { font: inherit; }

.site-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 46px;
}

.site-header, .section-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(18, 51, 90, 0.12);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(10, 18, 30, 0.96), rgba(12, 21, 33, 0.96));
  box-shadow: var(--shadow);
}
.site-header::before, .section-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(71, 213, 195, 0.08), transparent 30%),
    linear-gradient(315deg, rgba(137, 208, 255, 0.08), transparent 26%);
}
.section-card {
  margin-top: 22px;
  padding: 26px;
}
.compact { padding-bottom: 20px; }

.topbar, .hero, .section-heading, .toolbar, .aircraft-grid, .stats-grid, .history-list, .rankings {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px 0;
}
.brand, .eyebrow, .disclaimer-title {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: 0.08em;
}
.brand {
  font-size: 1.12rem;
  font-weight: 700;
  text-transform: uppercase;
}
.nav-links {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
}
.nav-links a[aria-current="page"] { color: var(--text); }

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  padding: 26px;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.74rem;
  text-transform: uppercase;
}
h1, h2, h3, p { margin: 0; }
h1 {
  max-width: 10ch;
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  line-height: 0.96;
}
h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.04;
}
.hero-text, .section-copy, .detail-copy, .disclaimer-card p {
  margin-top: 18px;
  color: var(--muted);
  line-height: 1.6;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.button-primary {
  color: #03111c;
  background: linear-gradient(135deg, #dff4ff, #89d0ff);
  box-shadow: 0 12px 28px rgba(137, 208, 255, 0.24);
}
.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}
.hero-panel {
  display: grid;
  gap: 16px;
}

.stats-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.stats-grid.wide {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.stat-card, .disclaimer-card, .aircraft-card, .detail-card, .history-item, .ranking-item, .field input, .field select {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
}
.stat-card, .disclaimer-card, .aircraft-card, .detail-card, .history-item, .ranking-item {
  padding: 18px;
}
.stat-label, .field span, .detail-meta span, .history-meta, .ranking-label {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.stat-value {
  display: block;
  margin-top: 10px;
  font-size: 1.7rem;
}
.disclaimer-title {
  color: var(--amber);
  text-transform: uppercase;
  font-size: 0.8rem;
}
.page-content { margin-top: 22px; }
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}
.toolbar {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 14px;
  margin-top: 22px;
}
.field { display: grid; gap: 10px; }
.field input, .field select {
  min-height: 48px;
  width: 100%;
  padding: 0 14px;
  color: var(--text);
  background: var(--panel-soft);
}

.aircraft-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}
.aircraft-card {
  display: grid;
  gap: 16px;
}
.card-head, .route-line, .detail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.status-airborne { color: var(--teal); }
.status-ground { color: var(--amber); }
.status-unknown { color: var(--rose); }

.route-line i {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(137, 208, 255, 0.24), rgba(71, 213, 195, 0.24));
}

.card-meta, .detail-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.card-meta strong, .detail-meta strong, .history-item strong, .ranking-item strong {
  display: block;
  margin-top: 6px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  font-weight: 700;
}

.history-list, .rankings {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}
.history-item, .ranking-item {
  background: var(--panel-soft);
}
.history-meta { margin-bottom: 10px; }
.ranking-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 12px;
}
.empty-state {
  padding: 22px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
}

@media (max-width: 1040px) {
  .hero, .aircraft-grid, .stats-grid.wide { grid-template-columns: 1fr; }
  .ranking-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .site-shell { width: min(100% - 20px, 1240px); }
  .topbar, .hero, .section-card { padding-left: 18px; padding-right: 18px; }
  .topbar, .section-heading, .toolbar, .card-meta, .detail-meta, .ranking-row, .stats-grid, .stats-grid.wide {
    grid-template-columns: 1fr;
  }
  .topbar { flex-direction: column; align-items: flex-start; }
  .route-line { flex-direction: column; align-items: flex-start; }
  .route-line i { width: 100%; }
}