:root {
  color-scheme: dark;
  --bg: #02050b;
  --bg-2: #09111b;
  --panel: rgba(10, 16, 24, 0.92);
  --panel-2: rgba(16, 24, 36, 0.96);
  --line: rgba(111, 255, 196, 0.14);
  --line-strong: rgba(111, 255, 196, 0.34);
  --text: #edf7ff;
  --muted: #98a9ba;
  --accent: #7dd3fc;
  --accent-2: #6fffc4;
  --warn: #ffcf70;
  --danger: #ff7b7b;
  --glow: 0 0 0 1px rgba(111,255,196,.06), 0 24px 60px rgba(0,0,0,.42);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(111,255,196,.05) 0%, transparent 18%),
    radial-gradient(circle at top, rgba(77, 128, 180, 0.18) 0%, transparent 24%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.02) 0 1px, transparent 1px 120px),
    linear-gradient(180deg, var(--bg-2), var(--bg));
}

a { color: var(--accent); }

.page {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
}

.card {
  background: linear-gradient(180deg, rgba(14, 20, 30, .96), rgba(9, 14, 22, .94));
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--glow);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(111,255,196,.42), rgba(125,211,252,.08), transparent 72%);
  pointer-events: none;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 97%, rgba(255,255,255,.02) 100%);
  background-size: 100% 44px;
  opacity: .18;
  pointer-events: none;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 20px;
  padding: 28px;
  margin-bottom: 22px;
  background:
    linear-gradient(135deg, rgba(111,255,196,.08), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0));
}

.hero-copy { min-width: 0; }
.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--accent-2);
  font-size: 12px;
  text-shadow: 0 0 12px rgba(111,255,196,.25);
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.02;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.subtitle {
  margin: 14px 0 0;
  max-width: 60ch;
  color: var(--muted);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .86rem;
}

.button.primary {
  background: linear-gradient(135deg, rgba(111,255,196,.22), rgba(125,211,252,.12));
  border-color: var(--line-strong);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.03), 0 0 18px rgba(111,255,196,.08);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-content: start;
  width: 100%;
}

.meta-card,
.summary-box,
.item,
.filter,
th,
tr td {
  transition: .18s ease;
}

.meta-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.02);
}

.meta-card span,
.summary-box span,
.card-head p {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.meta-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.05rem;
  line-height: 1.3;
}

.summary-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.summary-box {
  padding: 16px;
  position: relative;
}

.summary-box::before {
  content: 'SYS';
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 10px;
  letter-spacing: .18em;
  color: rgba(111,255,196,.42);
}

.summary-box strong {
  display: block;
  margin-top: 10px;
  font-size: 1.5rem;
  color: var(--accent-2);
}

.grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 22px;
  margin-top: 22px;
}

.card {
  padding: 22px;
  margin: 0;
}

.card-wide {
  grid-column: 1 / -1;
}

.hero + .card,
.hero + .card-wide {
  margin-top: 22px;
}

.glow-panel {
  background:
    linear-gradient(135deg, rgba(111,255,196,.08), transparent 22%),
    linear-gradient(135deg, rgba(18, 31, 49, .98), rgba(9, 15, 24, .95));
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.card-head-wrap {
  flex-wrap: wrap;
}

.card-head h2 {
  margin: 0;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.card-head h2::before {
  content: '// ';
  color: var(--accent-2);
}

.card-head p {
  margin: 6px 0 0;
  text-transform: none;
  letter-spacing: normal;
  font-size: .95rem;
}

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 11px 15px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(111,255,196,.08), rgba(255,255,255,.02));
  border: 1px solid var(--line);
}

.stack {
  display: grid;
  gap: 12px;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.item {
  padding: 14px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.item:hover,
.filter:hover,
.meta-card:hover,
.summary-box:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter {
  padding: 9px 13px;
  background: rgba(255,255,255,.02);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
}

.filter.active {
  background: rgba(111,184,255,.16);
  border-color: rgba(111,184,255,.46);
}

.table-wrap {
  overflow: auto;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.04);
}

.aircraft-list-mobile {
  display: none;
}

.mobile-aircraft-card {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  overflow: hidden;
}

.mobile-aircraft-card + .mobile-aircraft-card {
  margin-top: 10px;
}

.mobile-aircraft-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.mobile-aircraft-card p {
  margin: 8px 0 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.mobile-aircraft-card span {
  display: block;
  margin-bottom: 2px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--accent-2);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th, td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: rgba(5, 10, 18, .98);
  color: var(--accent-2);
  font-size: .84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
}

tr:hover td {
  background: rgba(255,255,255,.02);
}

.badge {
  display: inline-block;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  border: 1px solid var(--line);
}

.badge.flying {
  background: rgba(111,255,196,.12);
  color: var(--accent-2);
}

.badge.static {
  background: rgba(125,211,252,.12);
  color: var(--accent);
}

.badge.mixed {
  background: rgba(255,207,112,.12);
  color: var(--warn);
}

@media (max-width: 1024px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
  }
}

.mobile-nav {
  display: none;
  gap: 8px;
  padding: 10px;
  margin-bottom: 14px;
  overflow-x: auto;
  position: sticky;
  top: 8px;
  z-index: 10;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav::-webkit-scrollbar {
  display: none;
}

.mobile-nav a {
  color: var(--text);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(111,184,255,.18);
  background: rgba(255,255,255,.03);
  white-space: nowrap;
  flex: 0 0 auto;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
}

@media (max-width: 720px) {
  .page {
    padding: 14px;
  }

  .hero + .card,
  .hero + .card-wide {
    margin-top: 18px;
  }

  .hero {
    margin-bottom: 18px;
  }

  .grid {
    margin-top: 18px;
  }

  .grid {
    gap: 18px;
  }

  .aircraft-grid {
    gap: 18px;
  }

  .hero-meta {
    gap: 14px;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .hero,
  .card {
    padding: 18px;
  }

  .summary-row,
  .hero-meta {
    grid-template-columns: 1fr 1fr;
  }

  .mobile-nav {
    display: flex;
  }

  .pill-grid,
  .filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .pill-grid::-webkit-scrollbar,
  .filters::-webkit-scrollbar {
    display: none;
  }

  .pill {
    flex: 0 0 auto;
  }

  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

.guide-summary {
  margin: 0 0 16px;
  color: var(--muted);
}

.aircraft-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.aircraft-card {
  overflow: hidden;
  padding: 0;
}

.aircraft-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  background: rgba(255,255,255,.04);
}

.aircraft-image-fallback {
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: .95rem;
  border-bottom: 1px solid var(--line);
}

.aircraft-body {
  padding: 20px;
}

.aircraft-top {
  display: block;
}

.eyebrow.small {
  font-size: 11px;
  margin-bottom: 10px;
}

.aircraft-badges {
  margin: 12px 0 10px;
}

.aircraft-unit,
.aircraft-summary {
  color: var(--muted);
  line-height: 1.55;
}

.aircraft-unit {
  margin: 10px 0 8px;
}

.aircraft-summary {
  margin: 0;
}

.freq-list {
  display: grid;
  gap: 10px;
}

.freq-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.05);
}

.freq-row p {
  margin: 4px 0 0;
}

.freq-row code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 92px;
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(2,6,23,.88);
  border: 1px solid rgba(111,255,196,.18);
  color: #c7f0ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: inset 0 0 14px rgba(111,255,196,.04);
}

.tips-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.tips-list li + li {
  margin-top: 8px;
}

@media (max-width: 560px) {
  .summary-row,
  .hero-meta {
    grid-template-columns: 1fr;
  }

  .hero + .card,
  .hero + .card-wide {
    margin-top: 16px;
  }

  .hero-meta {
    gap: 12px;
  }

  .grid,
  .stack,
  .two-col {
    gap: 14px;
  }

  .page,
  .grid,
  .card,
  .aircraft-list-mobile {
    min-width: 0;
    max-width: 100%;
  }

  .page {
    padding: 10px;
    overflow-x: hidden;
  }

  body {
    overflow-x: hidden;
  }

  .hero,
  .card {
    padding: 16px;
    border-radius: 18px;
  }

  .hero {
    margin-bottom: 16px;
  }

  .grid {
    margin-top: 16px;
  }

  .hero {
    gap: 16px;
  }

  .eyebrow {
    font-size: 11px;
    letter-spacing: .14em;
  }

  .summary-row {
    gap: 10px;
  }

  .summary-box {
    padding: 14px;
  }

  .summary-box strong {
    font-size: 1.25rem;
  }

  .hero-actions,
  .card-head,
  .card-head-wrap,
  .mobile-aircraft-top {
    flex-direction: column;
    align-items: stretch;
  }

  .mobile-aircraft-top strong,
  .mobile-aircraft-card,
  .mobile-aircraft-card p {
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .button {
    width: 100%;
    min-height: 46px;
  }

  .freq-row {
    flex-direction: column;
    align-items: stretch;
  }

  .freq-row code {
    width: 100%;
  }

  .mobile-nav a,
  .filter {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
  }

  .pill {
    padding: 10px 13px;
    font-size: .92rem;
  }

  .card-head p,
  .subtitle,
  .item p,
  .mobile-aircraft-card p {
    font-size: 0.95rem;
  }

  .item,
  .mobile-aircraft-card {
    padding: 13px;
  }

  .aircraft-grid {
    gap: 16px;
  }

  .aircraft-body {
    padding: 16px;
  }

  .desktop-table {
    display: none;
  }

  .aircraft-list-mobile {
    display: block;
  }

  h1 {
    font-size: 2rem;
  }
}