:root {
  --bg0: #070A12;
  --bg1: #0B1020;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.08);
  --stroke: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.62);
  --brand: #7C5CFF;
  --brand2: #00D4FF;
  --warn: #FF5C7C;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% 10%, rgba(124, 92, 255, 0.28), transparent 60%),
              radial-gradient(900px 600px at 80% 0%, rgba(0, 212, 255, 0.18), transparent 55%),
              radial-gradient(900px 800px at 50% 100%, rgba(124, 92, 255, 0.12), transparent 60%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
}

.bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.10), transparent 45%),
                    radial-gradient(circle at 70% 30%, rgba(255,255,255,0.06), transparent 40%);
  filter: blur(0.3px);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--stroke);
  border-radius: 16px;
  background: rgba(0,0,0,0.22);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow: 0 20px 60px rgba(124, 92, 255, 0.25);
}

.title {
  font-weight: 750;
  letter-spacing: -0.02em;
  font-size: 18px;
}

.subtitle {
  font-size: 13px;
  color: var(--muted);
  margin-top: 2px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  color: var(--text);
  text-decoration: none;
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  cursor: pointer;
}

.btn:hover {
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-1px);
}

.banner {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
}

.banner.warn {
  border-color: rgba(255, 92, 124, 0.35);
  background: rgba(255, 92, 124, 0.10);
  color: rgba(255,255,255,0.86);
}

.grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

@media (max-width: 960px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .container { padding: 16px; }
}

.card {
  border: 1px solid var(--stroke);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(0,0,0,0.18);
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.22);
}

.media {
  position: relative;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
}

.media img,
.media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.overlay {
  position: absolute;
  left: 10px;
  right: 10px;
  top: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.16);
  font-weight: 650;
  font-size: 13px;
  line-height: 1.2;
  text-shadow: 0 2px 12px rgba(0,0,0,0.55);
  backdrop-filter: blur(10px);
}

.badge {
  position: absolute;
  right: 10px;
  bottom: 10px;
  padding: 6px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255,255,255,0.16);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.80);
}

.viewer {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
}

.viewerBackdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
}

.viewerPanel {
  position: relative;
  width: min(1100px, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(10, 14, 28, 0.92);
  overflow: hidden;
  box-shadow: 0 50px 130px rgba(0,0,0,0.55);
}

.viewerClose {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  z-index: 2;
}

.viewerBody {
  width: 100%;
  max-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.viewerBody img,
.viewerBody video {
  width: 100%;
  height: auto;
  max-height: calc(100vh - 160px);
  object-fit: contain;
  display: block;
}

.viewerCaption {
  padding: 14px 16px;
  color: rgba(255,255,255,0.78);
  border-top: 1px solid rgba(255,255,255,0.12);
}

.footer {
  margin-top: 16px;
  color: rgba(255,255,255,0.55);
  font-size: 12px;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: rgba(255,255,255,0.8);
}

.hidden { display: none !important; }
.noScroll { overflow: hidden; }