:root {
  --gold: #f9c86f;
  --gold-hover: #ffdc80;
  --ink: #000510;
  --bg: #000510;
  --card: #1e2229;
  --card-border: #262b35;
  --muted: #9ca3af;
  --text: #ffffff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "DM Sans", sans-serif;
}

button,
a {
  font: inherit;
}

.app {
  min-height: 100vh;
}

.topbar {
  height: 80px;
  display: flex;
  align-items: center;
  padding: 0 2rem;
  border-bottom: 1px solid #20242c;
}

.logo {
  display: block;
}

.logo img {
  display: block;
  width: 132px;
  height: auto;
}

.main {
  min-width: 0;
  padding: 2rem 2rem 3rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #fff;
}

h1 span {
  color: var(--gold);
}

.intro {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 40rem;
  line-height: 1.5;
  font-size: 14px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.tab {
  border: 0;
  border-radius: 12px;
  padding: 0.45rem 0.9rem;
  background: rgba(30, 34, 41, 0.5);
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
}

.tab[aria-selected="true"] {
  background: var(--gold);
  color: var(--ink);
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.empty {
  background: rgba(30, 34, 41, 0.3);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 2rem 1.4rem;
  color: var(--muted);
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 1rem;
}

.file-card {
  background: rgba(30, 34, 41, 0.3);
  border: 1px solid transparent;
  border-radius: 12px;
  overflow: hidden;
}

.file-card:hover,
.file-card:focus-within {
  border-color: var(--gold);
  background: rgba(30, 34, 41, 0.5);
}

.thumb {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: #101318;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.thumb-media {
  position: relative;
  height: 210px;
  background: #000;
}

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

.thumb-media .play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 1.4rem;
  pointer-events: none;
}

.thumb-label {
  margin: 0;
  padding: 0.85rem 0.9rem 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
  color: #fff;
}

.card-langs {
  padding: 0.35rem 0.9rem 0.95rem;
}

.viewer {
  display: none;
}

.viewer.open {
  display: block;
}

.back {
  border: 0;
  background: transparent;
  color: var(--gold);
  padding: 0 0 0.85rem;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}

.viewer-frame {
  background: rgba(30, 34, 41, 0.3);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
}

.viewer-frame img,
.viewer-frame video,
.viewer-frame iframe {
  display: block;
  width: 100%;
  height: 70vh;
  max-height: 70vh;
  border: 0;
  background: #000;
}

.viewer-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem 0.35rem;
}

.viewer-bar strong {
  font-size: 1rem;
}

.download {
  display: inline-flex;
  align-items: center;
  background: var(--gold);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.82rem;
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  white-space: nowrap;
  border: 1px solid var(--gold);
}

.download:hover {
  background: var(--gold-hover);
}

.lang-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.5rem 1rem 1rem;
}

@media (max-width: 800px) {
  .topbar {
    height: 64px;
    padding: 0 1rem;
  }

  .main {
    padding: 1rem 1rem 2.5rem;
  }
}