*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #111;
  --bg2: #1a1a1a;
  --bg3: #222;
  --border: #333;
  --text: #e8e8e8;
  --muted: #888;
  --accent: #4f8ef7;
  --accent-hover: #3a7de0;
  --danger: #d94040;
  --danger-hover: #bb3333;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-brand { font-size: 1.3rem; font-weight: 700; color: var(--text); }
.nav-brand:hover { text-decoration: none; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-lg { padding: 12px 28px; font-size: 15px; }
.nav-btn { background: var(--accent); color: #fff; padding: 7px 16px; border-radius: 6px; font-size: 14px; font-weight: 600; }
.nav-btn:hover { background: var(--accent-hover); text-decoration: none; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 32px 24px; }

/* Page header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}
.page-header h1 { font-size: 1.6rem; }
.back-link { color: var(--muted); font-size: 14px; }
.back-link:hover { color: var(--text); }

/* Video grid */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.video-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.15s, transform 0.15s;
}
.video-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card-link { display: block; color: inherit; }
.card-link:hover { text-decoration: none; }

.card-thumb {
  background: var(--bg3);
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.play-icon { font-size: 2.5rem; color: var(--accent); opacity: 0.8; }

.card-body { padding: 14px 16px; }
.card-title { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.card-date { font-size: 12px; color: var(--muted); margin-bottom: 8px; }

.lang-badges { display: flex; flex-wrap: wrap; gap: 5px; }
.badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--muted);
}
.empty-state p { font-size: 1.1rem; margin-bottom: 20px; }

/* Upload form */
.upload-form { max-width: 560px; }
.form-group { margin-bottom: 22px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.required { color: var(--danger); }
.optional { color: var(--muted); font-weight: 400; font-size: 13px; }

.form-group input[type="text"],
.form-group textarea {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}
.form-group input[type="text"]:focus,
.form-group textarea:focus { border-color: var(--accent); }

.form-group input[type="file"] {
  width: 100%;
  color: var(--text);
  font-size: 14px;
}
.hint { font-size: 12px; color: var(--muted); margin-top: 5px; }
.hint code { background: var(--bg3); padding: 1px 5px; border-radius: 3px; }

/* Progress bar */
.progress-wrap { margin-bottom: 20px; }
.progress-label { font-size: 13px; color: var(--muted); margin-bottom: 6px; display: flex; justify-content: space-between; }
.progress-bar-bg { background: var(--bg3); border-radius: 4px; height: 8px; overflow: hidden; }
.progress-bar-fill { height: 100%; width: 0; background: var(--accent); border-radius: 4px; transition: width 0.2s; }
.hidden { display: none !important; }

/* Alert */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 20px; font-size: 14px; }
.alert-error { background: #3a1a1a; border: 1px solid var(--danger); color: #f99; }

/* Player */
.player-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

.player-wrap {
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 12px;
}
.player-wrap video {
  width: 100%;
  max-height: 70vh;
  display: block;
}

/* Subtitle controls */
.subtitle-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.sub-label { font-size: 13px; color: var(--muted); margin-right: 4px; }
.sub-btn {
  padding: 5px 13px;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--muted);
  transition: all 0.15s;
}
.sub-btn:hover { border-color: var(--accent); color: var(--text); }
.sub-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Video info */
.video-info { padding: 4px 0 20px; }
.video-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 4px; }
.video-date { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.video-desc { color: #bbb; font-size: 14px; line-height: 1.6; }

@media (max-width: 600px) {
  .container { padding: 20px 16px; }
  .video-grid { grid-template-columns: 1fr; }
}