:root {
  --bg-main: #0f0f0f;
  --bg-header: #0f0f0f;
  --bg-sidebar: #0f0f0f;
  --bg-card: #181818;
  --bg-chip: #272727;
  --bg-chip-active: #f1f1f1;
  --text-primary: #ffffff;
  --text-secondary: #aaaaaa;
  --border-subtle: #303030;
  --accent: #3ea6ff;
  --tooltip-bg: #282828;
  --brand-red: #ff0000;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  overflow-x: hidden;
}
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 56px;
  background-color: var(--bg-header);
}
.header-left,
.header-center,
.header-right {
  display: flex;
  align-items: center;
}
.header-left {
  gap: 16px;
}
.header-center {
  flex: 0 1 640px;
  justify-content: center;
  gap: 8px;
}
.header-right {
  gap: 8px;
}
.brand {
  display: flex;
  align-items: center;
  cursor: pointer;
  text-decoration: none;
}
.brand-svg {
  height: 20px;
  width: auto;
}
.icon-btn,
.mic-btn,
.menu-toggle-btn,
.account-btn,
.notification-btn {
  border: none;
  background: transparent;
  color: var(--text-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.icon-btn:hover,
.mic-btn:hover,
.menu-toggle-btn:hover,
.account-btn:hover,
.notification-btn:hover {
  background-color: #272727;
}
.notification-btn {
  position: relative;
}
.notification-btn::after {
  content: "";
  position: absolute;
  top: 8px;
  right: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ff0000;
}
.main {
  display: flex;
  min-height: calc(100vh - 56px);
}
.sidebar {
  position: sticky;
  top: 56px;
  align-self: flex-start;
  height: calc(100vh - 56px);
  background-color: var(--bg-sidebar);
  padding-top: 12px;
  padding-bottom: 12px;
  overflow-y: auto;
  border-right: 1px solid var(--border-subtle);
  transition: width 0.2s ease, transform 0.2s ease;
}
.sidebar-section {
  display: flex;
  flex-direction: column;
  padding: 0 12px;
}
.sidebar-divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 12px 0;
}
.sidebar-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 14px;
  cursor: pointer;
  position: relative;
}
.sidebar-item:hover {
  background-color: #272727;
}
.sidebar-item.active {
  background-color: #272727;
  font-weight: 500;
}
.sidebar-icon {
  font-size: 22px;
}
body.sidebar-full .sidebar {
  width: 240px;
}
body.sidebar-mini .sidebar {
  width: 72px;
}
body.sidebar-mini .sidebar-label {
  display: none;
}
body.sidebar-mini .sidebar-item {
  padding: 8px 0;
  justify-content: center;
  gap: 0;
}
body.sidebar-mini .sidebar-icon {
  margin: 0;
}
body.sidebar-mini .sidebar-item::after {
  content: attr(data-tooltip);
  position: fixed;
  left: 72px;
  background-color: var(--tooltip-bg);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
  z-index: 200;
}
body.sidebar-mini .sidebar-item:hover::after {
  opacity: 1;
  transform: translateX(0);
}
.content {
  flex: 1;
  padding: 24px 24px 40px;
  width: 100%;
}
.chips-row {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.chips-row::-webkit-scrollbar {
  display: none;
}
.chip {
  border: none;
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 500;
  background-color: var(--bg-chip);
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s;
}
.chip:hover {
  background-color: #3f3f3f;
}
.chip.active {
  background-color: var(--bg-chip-active);
  color: #0f0f0f;
}
.section-header {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  display: none;
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px 16px;
}
.video-card {
  cursor: pointer;
}
.thumbnail {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #333;
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  position: relative;
}
.thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}
.video-card:hover .thumbnail img {
  transform: scale(1.05);
}
.duration-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  font-size: 12px;
  padding: 2px 4px;
  border-radius: 4px;
  font-weight: 500;
}
.video-info {
  display: flex;
  gap: 12px;
}
.video-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #333;
  flex-shrink: 0;
  object-fit: cover;
}
.video-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.video-title {
  font-size: 16px;
  font-weight: 500;
  margin: 0;
  line-height: 1.2rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-channel,
.video-stats {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}
.shorts-grid {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 20px;
  scrollbar-width: none;
}
.shorts-grid::-webkit-scrollbar {
  display: none;
}
.shorts-card {
  min-width: 200px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.shorts-card .thumbnail {
  margin-bottom: 0;
  aspect-ratio: 9 / 16;
  border-radius: 16px;
}
.shorts-card .video-title {
  font-size: 14px;
  -webkit-line-clamp: 2;
}
.watch-layout {
  display: none;
  gap: 24px;
  max-width: 100%;
}
.watch-layout.active {
  display: grid;
  grid-template-columns: minmax(0, 2.5fr) minmax(0, 1fr);
  gap: 24px;
}
.watch-player {
  width: 100%;
}
.watch-player iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
  border-radius: 12px;
  background: #000;
}
.watch-title {
  font-size: 20px;
  margin: 12px 0 8px;
  font-weight: 600;
}
.watch-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid #303030;
  padding-bottom: 12px;
  margin-bottom: 12px;
}
.watch-channel {
  display: flex;
  align-items: center;
  gap: 12px;
}
.watch-channel-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #333;
}
.watch-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.pill-btn {
  border-radius: 999px;
  border: none;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  background: #272727;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.pill-btn:hover {
  background: #3a3a3a;
}
.pill-btn.liked {
  background: #3ea6ff;
  color: #0f0f0f;
}
.embed-toggle {
  display: inline-flex;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid #3a3a3a;
}
.embed-toggle button {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
}
.embed-toggle button.active {
  background: #ffffff;
  color: #000000;
}
.watch-description {
  margin-top: 12px;
  padding: 12px;
  background: #202020;
  border-radius: 12px;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.4;
}
.related-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.related-item {
  display: flex;
  gap: 8px;
  cursor: pointer;
}
.related-thumb {
  width: 168px;
  height: 94px;
  border-radius: 8px;
  overflow: hidden;
  background: #333;
  flex-shrink: 0;
  position: relative;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.related-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 14px;
}
.related-title {
  color: var(--text-primary);
  font-weight: 500;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-channel,
.related-stats {
  color: var(--text-secondary);
  font-size: 12px;
}
.home-section {
  display: block;
}
.home-section.hidden {
  display: none;
}
.watch-layout.hidden {
  display: none;
}
.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-secondary);
}
.empty-state span {
  font-size: 48px;
  display: block;
  margin-bottom: 16px;
  opacity: 0.5;
}
.loader {
  border: 3px solid #333;
  border-top: 3px solid #fff;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 60px auto;
}
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
.toast {
  position: fixed;
  bottom: 24px;
  left: 24px;
  background-color: #fff;
  color: #0f0f0f;
  padding: 12px 24px;
  border-radius: 4px;
  font-size: 14px;
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}
.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 90;
}
body.mobile-sidebar-open .backdrop {
  opacity: 1;
  pointer-events: auto;
}
.search-wrapper {
  display: flex;
  align-items: stretch;
  flex: 1;
  max-width: 600px;
  position: relative;
}
.search-input {
  flex: 1;
  background-color: #121212;
  border: 1px solid #303030;
  border-right: none;
  border-radius: 999px 0 0 999px;
  padding: 8px 16px;
  color: var(--text-primary);
  font-size: 16px;
  position: relative;
  z-index: 10;
}
.search-input:focus {
  outline: none;
  border-color: #3ea6ff;
}
.search-btn {
  border-radius: 0 999px 999px 0;
  background-color: #222222;
  border: 1px solid #303030;
  border-left: none;
  width: 64px;
  cursor: pointer;
  color: var(--text-primary);
}
.search-btn:hover {
  background-color: #333;
}
.autocomplete {
  position: absolute;
  top: 40px;
  left: 0;
  right: 64px;
  background-color: #212121;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
  max-height: 360px;
  overflow-y: auto;
  display: none;
  padding: 4px 0;
  z-index: 20;
}
.autocomplete-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 14px;
}
.autocomplete-item:hover,
.autocomplete-item.active {
  background-color: #333333;
}
@media (max-width: 1024px) {
  .watch-layout.active {
    grid-template-columns: 1fr;
  }
  .related-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 24px;
  }
  .related-item {
    flex-direction: column;
  }
  .related-thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
  }
}
@media (max-width: 960px) {
  .main {
    padding-top: 0;
  }
  .sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    height: calc(100vh - 56px);
    transform: translateX(-100%);
    width: 240px;
    z-index: 100;
  }
  body.mobile-sidebar-open .sidebar {
    transform: translateX(0);
  }
  body.sidebar-full .sidebar,
  body.sidebar-mini .sidebar {
    width: 240px;
  }
  .content {
    padding: 16px;
  }
  .header-center {
    flex: 1;
    margin: 0 8px;
  }
  .search-wrapper {
    max-width: none;
  }
  .autocomplete {
    right: 0;
  }
}
@media (max-width: 600px) {
  .header-right {
    gap: 4px;
  }
  .video-grid {
    grid-template-columns: 1fr;
  }
}