frontend/src/index.css

:root {
  --yt-bg: #0f0f0f;
  --yt-surface: #212121;
  --yt-text: #f1f1f1;
  --yt-muted: #aaaaaa;
  --yt-accent: #3ea6ff;
  --yt-red: #ff4e45;
  --yt-green: #2ba640;
  font-family: Roboto, Arial, sans-serif;
  color: var(--yt-text);
  background: var(--yt-bg);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: #0f0f0f;
  border-right: 1px solid #303030;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex-shrink: 0;
}

.logo {
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.5rem 0.75rem 1rem;
  color: #fff;
  word-break: break-word;
}

.nav {
  color: var(--yt-muted);
  text-decoration: none;
  padding: 0.6rem 0.75rem;
  border-radius: 10px;
  font-size: 0.9rem;
}

.nav:hover,
.nav.active {
  background: #272727;
  color: #fff;
}

.main-content {
  flex: 1;
  overflow-x: hidden;
}

.watch-page {
  padding: 1.5rem 1.5rem 3rem;
}

.watch-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 1100px) {
  .watch-grid {
    grid-template-columns: 1fr;
  }
}

.staged-player {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
}

.player-poster {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.player-hint {
  color: var(--yt-muted);
  font-size: 0.9rem;
  margin: 0;
}

.player-iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.player-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
  position: relative;
  background: #000;
}

.player-fallback-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.75;
}

.player-fallback-cta {
  position: absolute;
  bottom: 1rem;
  background: rgba(0, 0, 0, 0.85);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--yt-accent);
}

.play-icon {
  width: 68px;
  height: 48px;
  background: rgba(255, 255, 255, 0.9);
  color: #000;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.video-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0.75rem 0 0.35rem;
  line-height: 1.4;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  color: var(--yt-muted);
  font-size: 0.85rem;
  margin: 0;
}

.channel-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
  padding-bottom: 1rem;
  border-bottom: 1px solid #303030;
}

.channel-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--yt-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.channel-name {
  margin: 0;
  font-weight: 500;
}

.info-banner {
  font-size: 0.85rem;
  color: var(--yt-muted);
  background: #1a2a3a;
  border: 1px solid #303030;
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  margin: 0.5rem 0 0.75rem;
}

.info-banner.dismissible {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--yt-text);
}

.btn-dismiss {
  background: transparent;
  border: none;
  color: var(--yt-muted);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 0.25rem;
}

.btn-dismiss:hover {
  color: var(--yt-text);
}

.loading-comments {
  color: var(--yt-muted);
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

.comments-header {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.toxic-count {
  color: var(--yt-red);
  font-weight: 500;
  font-size: 0.85rem;
}

.comment-compose textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid #303030;
  color: var(--yt-text);
  font-size: 0.95rem;
  resize: vertical;
  padding: 0.5rem 0;
  font-family: inherit;
}

.comment-compose textarea:focus {
  outline: none;
  border-bottom-color: var(--yt-accent);
}

.live-analysis {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  font-size: 0.85rem;
  margin: 0.5rem 0;
  color: var(--yt-muted);
}

.compose-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.btn-primary,
.btn-secondary,
.btn-danger {
  border: none;
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-weight: 500;
  cursor: pointer;
  font-size: 0.9rem;
}

.btn-primary {
  background: #3f3f3f;
  color: #fff;
}

.btn-primary:hover {
  background: #525252;
}

.btn-secondary {
  background: transparent;
  color: var(--yt-accent);
}

.btn-danger {
  background: var(--yt-red);
  color: #fff;
}

.badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.badge-safe {
  background: rgba(43, 166, 64, 0.2);
  color: var(--yt-green);
}

.badge-toxic {
  background: rgba(255, 78, 69, 0.2);
  color: var(--yt-red);
}

.comment-list {
  margin-top: 1.5rem;
}

.comment-row {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid #222;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #717171;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.avatar.toxic {
  background: #5c1a1a;
}

.comment-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  align-items: center;
  font-size: 0.8rem;
}

.comment-user {
  font-weight: 500;
  color: var(--yt-text);
}

.comment-time,
.comment-pct {
  color: var(--yt-muted);
}

.comment-text {
  margin: 0.35rem 0 0;
  line-height: 1.45;
  font-size: 0.9rem;
}

.flagged {
  color: var(--yt-red);
  font-size: 0.8rem;
  margin: 0.25rem 0 0;
}

.comment-labels {
  font-size: 0.75rem;
  color: var(--yt-muted);
  margin: 0.2rem 0 0;
}

.suggested-rail {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.rail-title {
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.suggested-card {
  display: flex;
  gap: 0.5rem;
  background: transparent;
  border: none;
  color: inherit;
  text-align: left;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 8px;
  width: 100%;
}

.suggested-card:hover,
.suggested-card.active {
  background: #272727;
}

.suggested-thumb {
  width: 168px;
  height: 94px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
  background: #333;
}

.suggested-title {
  font-size: 0.85rem;
  font-weight: 500;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.suggested-channel {
  font-size: 0.75rem;
  color: var(--yt-muted);
  margin: 0.25rem 0 0;
}

.loading-tag {
  font-size: 0.7rem;
  color: var(--yt-accent);
}

.embed-badge {
  display: inline-block;
  font-size: 0.65rem;
  color: var(--yt-muted);
  margin-top: 0.2rem;
}

.model-unavailable {
  opacity: 0.55;
  cursor: not-allowed;
}

.model-reason {
  font-size: 0.75rem;
  color: var(--yt-muted);
  font-weight: normal;
}

.error-banner,
.error-text {
  color: var(--yt-red);
  font-size: 0.85rem;
}

.settings-page,
.hub-page {
  padding: 1.5rem 2rem 3rem;
  max-width: 960px;
}

.settings-card,
.chart-box,
.hub-stat {
  background: var(--yt-surface);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.hint {
  color: var(--yt-muted);
  font-size: 0.85rem;
}

.model-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.model-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.settings-msg {
  color: var(--yt-accent);
  font-size: 0.9rem;
}

.hub-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.stat-label {
  display: block;
  color: var(--yt-muted);
  font-size: 0.8rem;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.hub-charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 800px) {
  .hub-charts,
  .hub-cards {
    grid-template-columns: 1fr;
  }
}

.hub-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.hub-table th,
.hub-table td {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 1px solid #333;
}

.hub-table-wrap {
  background: var(--yt-surface);
  border-radius: 12px;
  padding: 1rem;
}