@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

:root {
  --bg: #080a0c;
  --panel: rgba(18, 21, 24, 0.82);
  --panel-hover: rgba(25, 29, 33, 0.95);
  --text: #eef2f3;
  --muted: #99a3aa;
  --line: rgba(255, 255, 255, 0.10);
  --accent: #d9ff4f;
  --accent-soft: rgba(217, 255, 79, 0.09);
  --max: 900px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, rgba(217,255,79,.08), transparent 30%),
    radial-gradient(circle at 90% 70%, rgba(80,140,255,.07), transparent 34%),
    var(--bg);
  font-family: "Inter", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
  z-index: 10;
}

a {
  color: inherit;
}

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.hero {
  padding: 86px 0 55px;
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.section-label,
.link-type,
.info-card span,
.contact-item span {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.eyebrow,
.section-label {
  color: var(--accent);
}

.callsign-row {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
}

h1 {
  margin: 0;
  font-size: clamp(4rem, 15vw, 8.5rem);
  line-height: .85;
  letter-spacing: -.075em;
  font-weight: 800;
}

.nickname {
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.nickname strong {
  color: var(--text);
}

.signal-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: .72rem;
  white-space: nowrap;
}

.signal-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(217,255,79,.55);
}

.hero-text {
  max-width: 700px;
  margin: 38px 0 0;
  color: #d8dfe2;
  font-size: 1.15rem;
}

.hero-text strong {
  color: var(--accent);
}

.scroll-hint {
  margin-top: 42px;
  color: #69737a;
  font-size: .7rem;
  letter-spacing: .16em;
}

main {
  padding: 28px 0 40px;
}

.panel {
  margin: 18px 0;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  backdrop-filter: blur(15px);
}

.panel h2 {
  margin: 5px 0 18px;
  font-size: 1.45rem;
  letter-spacing: -.02em;
}

.panel p {
  margin: 10px 0;
  color: #cbd2d6;
}

.emoji {
  white-space: nowrap;
}

.station-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.info-card,
.contact-item {
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.025);
}

.info-card span,
.contact-item span {
  display: block;
  color: var(--muted);
  margin-bottom: 3px;
}

.info-card strong,
.contact-item strong,
.contact-item a {
  font-size: 1rem;
  font-weight: 650;
  text-decoration: none;
}

.contact-item a:hover {
  color: var(--accent);
}

.update-note {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  padding: 13px 15px;
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  color: #cbd2d6;
  font-size: .9rem;
}

.note-mark {
  color: var(--accent);
  font-weight: 800;
}

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

.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  background: rgba(255,255,255,.025);
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.link-card:hover {
  transform: translateY(-2px);
  border-color: rgba(217,255,79,.42);
  background: var(--accent-soft);
}

.link-type {
  display: block;
  color: var(--muted);
  margin-bottom: 2px;
}

.link-card strong {
  font-size: .98rem;
}

.arrow {
  color: var(--accent);
  font-size: 1.2rem;
}

.contact-note {
  margin-top: 18px !important;
  color: var(--muted) !important;
}

.qsl-panel {
  border-color: rgba(217,255,79,.20);
}

.qsl-message {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
}

.qsl-icon {
  flex: 0 0 auto;
  padding: 7px 9px;
  border: 1px solid rgba(217,255,79,.45);
  border-radius: 7px;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .08em;
}

.muted {
  color: var(--muted) !important;
  font-size: .9rem;
}

.email-buttons {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.email-buttons a {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: .88rem;
  transition: background .18s ease, border-color .18s ease;
}

.email-buttons a:hover {
  border-color: rgba(217,255,79,.42);
  background: var(--accent-soft);
}

.farewell {
  padding: 48px 0 20px;
  text-align: center;
}

.radio-line {
  width: 80px;
  height: 1px;
  margin: 0 auto 25px;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(217,255,79,.4);
}

.farewell p {
  margin: 0;
  color: #dce2e5;
  font-size: 1.05rem;
}

.farewell strong {
  display: block;
  margin-top: 7px;
  color: var(--accent);
  font-size: 2.3rem;
  line-height: 1;
}

.farewell span {
  display: block;
  margin-top: 13px;
  color: var(--muted);
  font-size: .85rem;
}

footer {
  padding: 28px 0 50px;
  border-top: 1px solid var(--line);
  color: #667178;
  font-size: .75rem;
}

footer .container {
  display: flex;
  justify-content: center;
  gap: 9px;
}

@media (max-width: 680px) {
  .container {
    width: min(calc(100% - 28px), var(--max));
  }

  .hero {
    padding-top: 58px;
  }

  .callsign-row {
    display: block;
  }

  .signal-badge {
    margin-top: 24px;
  }

  .hero-text {
    font-size: 1rem;
  }

  .panel {
    padding: 22px;
    border-radius: 16px;
  }

  .station-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .qsl-message {
    display: block;
  }

  .qsl-icon {
    display: inline-block;
    margin-bottom: 7px;
  }

  footer .container {
    flex-wrap: wrap;
  }
}