:root {
  --bg: #0b1020;
  --panel: #121a2e;
  --panel-2: #17223a;
  --text: #eef4ff;
  --muted: #aab8d4;
  --accent: #7dd3fc;
  --accent-2: #c084fc;
  --border: rgba(255,255,255,.12);
  --shadow: 0 18px 45px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(125, 211, 252, .18), transparent 36rem),
    radial-gradient(circle at top right, rgba(192, 132, 252, .15), transparent 34rem),
    var(--bg);
  line-height: 1.55;
}

a { color: inherit; }

.wrapper {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 42px 0 20px;
}

.hero-card {
  background: linear-gradient(135deg, rgba(18,26,46,.96), rgba(23,34,58,.9));
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 32px;
  box-shadow: var(--shadow);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.subtitle {
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 0;
}

.tab {
  text-decoration: none;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 16px;
  color: var(--text);
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}

.tab:hover, .tab.active {
  transform: translateY(-2px);
  background: rgba(125,211,252,.16);
  border-color: rgba(125,211,252,.45);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
  gap: 18px;
  padding: 14px 0 42px;
}

.card {
  background: rgba(18,26,46,.88);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
}

.card h2, .card h3 {
  margin: 0 0 10px;
}

.card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.button {
  display: inline-block;
  text-decoration: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06101f;
  font-weight: 700;
  border-radius: 14px;
  padding: 10px 14px;
}

.file-list {
  display: grid;
  gap: 14px;
  padding: 12px 0 48px;
}

.file-item {
  background: rgba(18,26,46,.86);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 16px;
  box-shadow: 0 10px 24px rgba(0,0,0,.2);
}

.file-top {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.file-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.file-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.small-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted rgba(125,211,252,.65);
}

audio, video {
  width: 100%;
  margin-top: 8px;
  border-radius: 14px;
}

video {
  background: #000;
  max-height: 520px;
}

.search-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 8px 0 18px;
}

.search {
  flex: 1;
  min-width: 220px;
  padding: 13px 15px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.07);
  color: var(--text);
  font-size: 1rem;
}

.count {
  color: var(--muted);
  align-self: center;
}

.footer {
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
  margin-top: 10px;
  font-size: .95rem;
}

@media (max-width: 640px) {
  .hero-card { padding: 24px; }
  .tab { width: 100%; text-align: center; }
}