:root {
  --bg-deep: #070a12;
  --bg-card: rgba(16, 22, 38, 0.78);
  --bg-card-solid: #121a2a;
  --border: rgba(255, 255, 255, 0.09);
  --text: #e8edf5;
  --muted: #8b96ab;
  --accent: #d4af37;
  --accent-dim: rgba(212, 175, 55, 0.22);
  --sky: #5a9fd4;
  --sky-dim: rgba(90, 159, 212, 0.2);
  --danger: #e85d5d;
  --ok: #4caf7a;
  --radius: 16px;
  --shadow: 0 24px 56px rgba(0, 0, 0, 0.5);
  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.35);
  --font: "Noto Sans SC", "DM Sans", system-ui, sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(ellipse 100% 80% at 50% -30%, rgba(90, 159, 212, 0.18), transparent 55%),
    radial-gradient(900px 520px at 100% 0%, rgba(212, 175, 55, 0.1), transparent 52%),
    radial-gradient(700px 400px at 0% 100%, rgba(61, 126, 166, 0.12), transparent 50%),
    var(--bg-deep);
  line-height: 1.6;
}

.bg-grid {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black, transparent);
  z-index: 0;
}

.container {
  width: min(1120px, 92vw);
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 14, 23, 0.82);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 10px;
  background: linear-gradient(135deg, #e8c85c, #9a7618);
  color: #0a0e17;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.25);
}

.brand-text {
  font-size: 0.95rem;
  opacity: 0.95;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem 1rem;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.35rem 0.25rem;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-admin {
  color: var(--accent) !important;
}

.nav-user {
  font-size: 0.85rem;
  color: var(--muted);
  padding-left: 0.5rem;
  border-left: 1px solid var(--border);
}

.main {
  padding: 2rem 0 4rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  background: rgba(0, 0, 0, 0.2);
}

.hero {
  padding: 2.5rem 0 1rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
}

.hero .lead {
  color: var(--muted);
  max-width: 52ch;
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
}

.motto {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  margin: 1.5rem 0;
  background: var(--accent-dim);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text);
  font-weight: 500;
}

.card {
  position: relative;
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.07) 0%, rgba(255, 255, 255, 0.02) 45%, transparent 100%),
    var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow-soft), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px) saturate(1.2);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.metar-page .card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.card + .card {
  margin-top: 1.25rem;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.grid-2 {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.2rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.12s, box-shadow 0.12s, background 0.12s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-primary {
  background: linear-gradient(135deg, #e0bc4a, #b8941f);
  color: #0a0e17;
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 28px rgba(212, 175, 55, 0.28);
}

.btn-primary:hover {
  box-shadow: 0 12px 32px rgba(212, 175, 55, 0.38);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-danger {
  background: rgba(232, 93, 93, 0.2);
  color: #ffb4b4;
  border-color: rgba(232, 93, 93, 0.4);
}

.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  max-width: 420px;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.4);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
  max-width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.flash {
  padding: 0.85rem 1rem;
  border-radius: 10px;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.flash.ok {
  background: rgba(76, 175, 122, 0.2);
  border: 1px solid rgba(76, 175, 122, 0.45);
  color: #b8e6c8;
}

.flash.err {
  background: rgba(232, 93, 93, 0.15);
  border: 1px solid rgba(232, 93, 93, 0.4);
  color: #ffc9c9;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.data th,
table.data td {
  text-align: left;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

table.data th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

table.data tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-gold {
  background: var(--accent-dim);
  color: var(--accent);
}

.badge-sky {
  background: rgba(61, 126, 166, 0.25);
  color: #9cc8e0;
}

.badge-muted {
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

a.inline-link {
  color: var(--sky);
  text-decoration: none;
  font-weight: 500;
}

a.inline-link:hover {
  text-decoration: underline;
}

.split {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: 1fr 320px;
    align-items: start;
  }
}

.roster-block h4 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.weather-result {
  margin-top: 1.25rem;
}

/* —— METAR 页面 —— */
.metar-page {
  max-width: 44rem;
  margin: 0 auto;
}

.metar-hero {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  margin-bottom: 1.75rem;
}

.metar-hero-icon {
  flex-shrink: 0;
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(90, 159, 212, 0.35), rgba(212, 175, 55, 0.12));
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--accent);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.metar-hero-icon svg {
  opacity: 0.95;
}

.metar-hero-text {
  min-width: 0;
}

.metar-page-title {
  font-size: clamp(1.45rem, 3.5vw, 1.85rem);
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: 0.03em;
  line-height: 1.25;
}

.metar-page-title .metar-slash {
  color: var(--muted);
  font-weight: 400;
  margin: 0 0.15em;
  opacity: 0.85;
}

.metar-page-title .metar-cn {
  font-weight: 600;
  background: linear-gradient(120deg, var(--text) 0%, rgba(232, 237, 245, 0.88) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@supports not (background-clip: text) {
  .metar-page-title .metar-cn {
    color: var(--text);
    background: none;
  }
}

.metar-lead {
  color: var(--muted);
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.65;
  max-width: 36rem;
}

.metar-search-card {
  margin-bottom: 1.35rem;
  padding: 1.25rem 1.35rem;
}

.metar-search-form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem 1.1rem;
}

.metar-icao-group {
  flex: 1;
  min-width: 11rem;
  margin-bottom: 0;
}

.metar-icao-group input {
  max-width: none;
  font-family: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.75rem 1rem;
}

.metar-search-btn {
  padding-left: 1.35rem;
  padding-right: 1.35rem;
  border-radius: 12px;
}

.metar-search-btn-icon {
  display: inline-block;
  margin-right: 0.35rem;
  opacity: 0.9;
  font-size: 1rem;
  transform: translateY(-1px);
}

.metar-flash {
  margin-top: 0;
  margin-bottom: 1.25rem;
  border-radius: 12px;
}

.metar-board.card {
  padding: 0;
  overflow: hidden;
  margin-top: 0.25rem;
}

.metar-board-accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sky), var(--accent), rgba(90, 159, 212, 0.5));
  opacity: 0.95;
  pointer-events: none;
}

.metar-board-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.25rem;
  padding: 1.35rem 1.5rem 1.15rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, transparent 100%);
}

.metar-board-id {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.metar-pipe {
  display: block;
  width: 4px;
  height: 2.25rem;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--accent), rgba(90, 159, 212, 0.85));
  box-shadow: 0 0 16px rgba(212, 175, 55, 0.35);
}

.metar-station-code {
  font-size: clamp(1.65rem, 4vw, 2rem);
  font-weight: 700;
  font-family: "JetBrains Mono", ui-monospace, Consolas, monospace;
  letter-spacing: 0.12em;
  color: var(--text);
  text-shadow: 0 0 40px rgba(90, 159, 212, 0.25);
}

.metar-board-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.metar-fc-pill {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  text-transform: none;
}

.metar-fc-vfr {
  color: #8eeda8;
  border-color: rgba(142, 237, 168, 0.45);
  background: linear-gradient(135deg, rgba(76, 175, 122, 0.22), rgba(76, 175, 122, 0.06));
  box-shadow: 0 0 24px rgba(76, 175, 122, 0.12);
}

.metar-fc-mvfr {
  color: #f0d060;
  border-color: rgba(240, 208, 96, 0.45);
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.28), rgba(212, 175, 55, 0.08));
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.1);
}

.metar-fc-ifr {
  color: #ff8a8a;
  border-color: rgba(255, 138, 138, 0.45);
  background: linear-gradient(135deg, rgba(232, 93, 93, 0.25), rgba(232, 93, 93, 0.06));
  box-shadow: 0 0 20px rgba(232, 93, 93, 0.1);
}

.metar-fc-lifr {
  color: #d4a5ff;
  border-color: rgba(212, 165, 255, 0.45);
  background: linear-gradient(135deg, rgba(196, 92, 255, 0.22), rgba(196, 92, 255, 0.06));
  box-shadow: 0 0 20px rgba(196, 92, 255, 0.1);
}

.metar-fc-unknown {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.metar-obs-time {
  font-size: 0.82rem;
  color: var(--muted);
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-variant-numeric: tabular-nums;
}

.metar-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  padding: 1.15rem 1.5rem 1.5rem;
}

.metar-tile {
  position: relative;
  padding: 1.05rem 1.15rem 1.15rem;
  border-radius: 14px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.metar-tile::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0.85rem;
  right: 0.85rem;
  height: 2px;
  border-radius: 2px;
  opacity: 0.9;
}

.metar-tile--wind::before {
  background: linear-gradient(90deg, transparent, rgba(90, 159, 212, 0.95), transparent);
}

.metar-tile--vis::before {
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.9), transparent);
}

.metar-tile--temp::before {
  background: linear-gradient(90deg, transparent, rgba(232, 150, 168, 0.85), transparent);
}

.metar-tile--qnh::before {
  background: linear-gradient(90deg, transparent, rgba(160, 170, 200, 0.85), transparent);
}

.metar-panel {
  grid-column: 1 / -1;
  padding: 1.05rem 1.15rem 1.2rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(0, 0, 0, 0.22);
}

.metar-panel--raw {
  border-left: 3px solid rgba(90, 159, 212, 0.55);
  box-shadow: inset 0 0 48px rgba(90, 159, 212, 0.04);
}

.metar-panel--clouds {
  border-left: 3px solid rgba(212, 175, 55, 0.45);
}

.metar-raw-block {
  margin: 0.35rem 0 0;
  padding: 1rem 1.1rem;
  font-family: "JetBrains Mono", ui-monospace, Consolas, monospace;
  font-size: 0.8125rem;
  line-height: 1.65;
  font-weight: 400;
  color: #c5e8d8;
  background: rgba(0, 0, 0, 0.45);
  border-radius: 10px;
  border: 1px solid rgba(90, 159, 212, 0.15);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

.metar-clouds-text {
  margin-top: 0.35rem;
  font-size: 1.02rem;
}

@media (max-width: 560px) {
  .metar-grid {
    grid-template-columns: 1fr;
    padding: 1rem 1.15rem 1.35rem;
  }

  .metar-board-header {
    padding: 1.15rem 1.15rem 1rem;
  }

  .metar-board-meta {
    width: 100%;
    justify-content: flex-start;
  }
}

.metar-block-h {
  margin: 0 0 0.5rem;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  line-height: 1.45;
}

.metar-block-h .metar-label-sep {
  margin: 0 0.4rem;
  opacity: 0.45;
  font-weight: 400;
}

.metar-block-v {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: rgba(248, 250, 255, 0.96);
}

.admin-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 1.5rem;
}

.admin-bar a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.admin-bar a:hover,
.admin-bar a.active {
  color: var(--accent);
}

h1.page-title {
  font-size: 1.65rem;
  margin: 0 0 1rem;
}

.empty {
  color: var(--muted);
  font-size: 0.95rem;
}