/* Global SDR Hub */
:root {
  --bg: #0b1220;
  --bg-card: #141e2e;
  --bg-hover: #1c2a40;
  --text: #e8eef7;
  --text-muted: #8b9cb3;
  --accent: #38bdf8;
  --accent-hover: #7dd3fc;
  --accent-dim: #0ea5e9;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --border: #243044;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: linear-gradient(180deg, #141e2e 0%, #0b1220 100%);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.2rem;
}
.logo span { color: var(--accent); }
.logo-icon { font-size: 1.5rem; }

nav { display: flex; gap: 0.2rem; flex-wrap: wrap; }
nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: all 0.15s;
}
nav a:hover, nav a.active {
  color: var(--text);
  background: var(--bg-hover);
}
nav a.active { color: var(--accent); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.1rem;
}

main {
  flex: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.hero {
  text-align: center;
  padding: 2.2rem 1rem 1.8rem;
  background: radial-gradient(ellipse at top, rgba(56,189,248,0.12) 0%, transparent 60%);
  border-radius: var(--radius);
  margin-bottom: 1.75rem;
}
.hero h1 { font-size: 2.1rem; margin-bottom: 0.5rem; line-height: 1.2; }
.hero h1 span { color: var(--accent); }
.hero p { color: var(--text-muted); font-size: 1.05rem; max-width: 560px; margin: 0 auto 1.4rem; }
.hero-buttons { display: flex; gap: 0.7rem; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.2rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-primary { background: var(--accent); color: #0b1220; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-hover); border-color: var(--accent); }
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.85rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.1rem;
  margin-bottom: 1.75rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--accent-dim); transform: translateY(-2px); }
.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.45rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.card p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 0.8rem; }
.card .icon { font-size: 1.3rem; }

.section { margin-bottom: 2.2rem; }
.section h2 {
  font-size: 1.4rem;
  margin-bottom: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.disclaimer {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 8px;
  padding: 0.85rem 1.05rem;
  font-size: 0.85rem;
  color: #fca5a5;
  margin: 1.1rem 0;
}
.disclaimer strong { color: #f87171; }

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td {
  padding: 0.65rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  background: var(--bg-card);
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}
tr:hover td { background: rgba(56,189,248,0.05); }
tr:last-child td { border-bottom: none; }

input[type="search"], select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.2);
}
.search-bar { margin-bottom: 1.1rem; }

.badge {
  display: inline-block;
  background: var(--accent);
  color: #0b1220;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.12rem 0.45rem;
  border-radius: 4px;
  text-transform: uppercase;
}
.badge-kiwi { background: #22c55e; }
.badge-websdr { background: #f59e0b; color: #111; }
.badge-owrx { background: #a78bfa; color: #111; }
.badge-wide { background: #38bdf8; }

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.1rem;
}

.dir-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.9rem;
}
.dir-link {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  text-decoration: none;
  color: var(--text);
  transition: all 0.15s;
  display: block;
}
.dir-link:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}
.dir-link strong { color: var(--accent); display: block; margin-bottom: 0.25rem; }
.dir-link span { color: var(--text-muted); font-size: 0.88rem; }

footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 1.75rem 1.25rem;
  margin-top: auto;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.3rem;
  font-size: 0.9rem;
}
.footer-inner h4 { color: var(--accent); margin-bottom: 0.5rem; font-size: 0.92rem; }
.footer-inner a {
  color: var(--text-muted);
  text-decoration: none;
  display: block;
  margin-bottom: 0.3rem;
}
.footer-inner a:hover { color: var(--accent); }
.footer-bottom {
  max-width: 1100px;
  margin: 1.3rem auto 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  nav { display: none; width: 100%; flex-direction: column; }
  nav.open { display: flex; }
  .hero h1 { font-size: 1.6rem; }
}

/* Our sites & share */
.our-sites {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}
.our-sites a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.55rem 1rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.15s;
}
.our-sites a:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}
.share-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 1.25rem 0;
}
.share-bar span {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-right: 0.25rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
}
.share-btn:hover { transform: translateY(-1px); }
.share-btn.x { border-color: #333; }
.share-btn.x:hover { background: #1a1a1a; border-color: #fff; }
.share-btn.fb { border-color: #1877f2; color: #1877f2; }
.share-btn.fb:hover { background: #1877f2; color: #fff; }
.share-btn.reddit { border-color: #ff4500; color: #ff4500; }
.share-btn.reddit:hover { background: #ff4500; color: #fff; }
.share-btn.copy { border-color: var(--accent); color: var(--accent); }
.share-btn.copy:hover { background: var(--accent); color: #0b1220; }