:root {
  --bg: #0f1115;
  --surface: #191c23;
  --surface-2: #232733;
  --text: #f2f3f5;
  --muted: #9aa1ad;
  --accent: #ff5a36;
  --accent-2: #ffb020;
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.45;
}
a { color: inherit; }

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; gap: 16px; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  background: rgba(15, 17, 21, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--surface-2);
}
.brand { text-decoration: none; font-weight: 800; font-size: 1.3rem; white-space: nowrap; }
.brand span {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
#search {
  width: min(420px, 100%);
  padding: 10px 14px; border-radius: 999px; border: 1px solid var(--surface-2);
  background: var(--surface); color: var(--text); font-size: 1rem;
}

.menu {
  display: flex; gap: 8px; overflow-x: auto; padding: 14px 16px 6px;
  scrollbar-width: none;
}
.menu::-webkit-scrollbar { display: none; }
.menu button {
  flex: 0 0 auto;
  padding: 9px 16px; border-radius: 999px; border: 1px solid var(--surface-2);
  background: var(--surface); color: var(--text); font-size: .95rem; cursor: pointer;
}
.menu button:hover { border-color: var(--accent); }
.menu button.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }

.filters {
  display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center;
  padding: 8px 16px; color: var(--muted); font-size: .9rem;
}
.filters select {
  margin-left: 6px; padding: 6px 8px; border-radius: 8px;
  background: var(--surface); color: var(--text); border: 1px solid var(--surface-2);
}
.count { margin-left: auto; }

main { padding: 8px 16px 32px; max-width: 1400px; margin: 0 auto; }
h1 { font-size: 1.5rem; margin: 12px 0 18px; }

.grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.card {
  background: var(--surface); border-radius: var(--radius); overflow: hidden;
  cursor: pointer; border: 1px solid transparent; text-align: left; color: inherit;
  padding: 0; font: inherit;
  transition: transform .15s, border-color .15s;
}
.card:hover, .card:focus-visible { transform: translateY(-3px); border-color: var(--accent); outline: none; }
.thumb { position: relative; aspect-ratio: 16 / 9; background: #000; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb.portrait img { object-fit: contain; }
.badge {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(0,0,0,.75); padding: 2px 8px; border-radius: 6px; font-size: .8rem; font-weight: 600;
}
.play {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 2.6rem; opacity: 0; transition: opacity .15s; background: rgba(0,0,0,.25);
}
.card:hover .play { opacity: 1; }
.card-body { padding: 12px 14px 14px; }
.card-body h3 { margin: 0 0 6px; font-size: 1rem; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-size: .75rem; padding: 2px 8px; border-radius: 999px; background: var(--surface-2); color: var(--muted); }
.tag.lvl-Débutant { color: #5ee08a; }
.tag.lvl-Intermédiaire { color: var(--accent-2); }
.tag.lvl-Avancé { color: var(--accent); }
.empty { color: var(--muted); text-align: center; padding: 40px 0; }

dialog {
  width: min(1000px, 96vw); max-height: 96vh; padding: 16px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--surface-2); border-radius: var(--radius);
}
dialog::backdrop { background: rgba(0,0,0,.8); }
.player-head { display: flex; justify-content: space-between; gap: 12px; align-items: start; }
.player-head h2 { margin: 0 0 10px; font-size: 1.2rem; }
video { width: 100%; max-height: 70vh; background: #000; border-radius: 10px; display: block; }
.p-meta { color: var(--muted); font-size: .9rem; margin: 10px 0 4px; }
.player-nav { display: flex; justify-content: space-between; gap: 10px; margin-top: 8px; }
.btn, .icon-btn {
  background: var(--surface-2); color: var(--text); border: 0; border-radius: 10px;
  padding: 9px 14px; cursor: pointer; font-size: .95rem;
}
.btn:hover, .icon-btn:hover { background: var(--accent); }
.btn:disabled { opacity: .35; cursor: default; background: var(--surface-2); }

footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 24px 16px; border-top: 1px solid var(--surface-2); }

@media (max-width: 560px) {
  .brand { font-size: 1.1rem; }
  .grid { grid-template-columns: 1fr; }
  dialog { padding: 10px; }
}