:root {
  --bg: #0b1220;
  --panel: rgba(255, 255, 255, 0.06);
  --panel2: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.65);
  --border: rgba(255, 255, 255, 0.12);
  --accent: #7c3aed;
  --accent2: #22c55e;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 700px at 20% 10%, rgba(124, 58, 237, 0.35), transparent 55%),
    radial-gradient(900px 600px at 90% 30%, rgba(34, 197, 94, 0.2), transparent 55%),
    var(--bg);
}

.app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.header {
  padding: 24px 20px 16px;
  background: linear-gradient(180deg, rgba(124, 58, 237, 0.08) 0%, transparent 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header__inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  max-width: 96%;
  margin: 0 auto;
}

.header__actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand__title {
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand__sub {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.main {
  flex: 1;
  display: grid;
  grid-template-columns: 420px minmax(0, 1fr);
  gap: 24px;
  padding: 0 2% 24px;
  max-width: 96%;
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 980px) {
  .main {
    grid-template-columns: 1fr;
  }
}

.main--single {
  grid-template-columns: 1fr;
}

.panel {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.08) 0%, rgba(34, 197, 94, 0.05) 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.panel:hover {
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
}

.panel__title {
  padding: 16px 18px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(34, 197, 94, 0.05));
}

.video-list {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
}

.video-list::-webkit-scrollbar {
  width: 6px;
}

.video-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

.video-list::-webkit-scrollbar-thumb {
  background: rgba(124, 58, 237, 0.4);
  border-radius: 3px;
}

.video-list::-webkit-scrollbar-thumb:hover {
  background: rgba(124, 58, 237, 0.6);
}

.video-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.05) 100%);
  cursor: pointer;
  user-select: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.video-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.video-card:hover {
  border-color: rgba(124, 58, 237, 0.5);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.12) 0%, rgba(34, 197, 94, 0.08) 100%);
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.2);
}

.video-card:hover::before {
  opacity: 1;
}

.video-card[aria-current="true"] {
  border-color: rgba(124, 58, 237, 0.7);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(34, 197, 94, 0.12) 100%);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.3), 0 8px 24px rgba(124, 58, 237, 0.3);
  transform: translateX(4px);
}

.video-card[aria-current="true"]::before {
  opacity: 1;
}

.video-card__title {
  font-weight: 600;
  font-size: 14px;
  line-height: 1.4;
  color: var(--text);
}

.video-card__meta {
  display: flex;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.player {
  padding: 16px;
}

.player__stage {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(0, 0, 0, 0.6);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.player__video {
  width: 100%;
  max-height: 68vh;
  display: block;
  background: #000;
}

.controls {
  margin-top: 10px;
  display: grid;
  grid-template-columns: auto auto auto 1fr 140px auto;
  gap: 10px;
  align-items: center;
}

@media (max-width: 980px) {
  .controls {
    grid-template-columns: auto auto 1fr;
    grid-auto-rows: auto;
  }

  .time {
    justify-self: end;
  }

  .range--seek {
    grid-column: 1 / -1;
  }

  .range--volume {
    grid-column: 1 / -2;
  }
}

.btn {
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid rgba(124, 58, 237, 0.5);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.3), rgba(124, 58, 237, 0.2));
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.2);
}

.btn:hover {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.4), rgba(124, 58, 237, 0.3));
  border-color: rgba(124, 58, 237, 0.6);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(124, 58, 237, 0.2);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.15);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.05));
  font-weight: 500;
}

.btn--ghost:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.08));
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.range {
  width: 100%;
  height: 6px;
  accent-color: var(--accent);
  cursor: pointer;
  transition: all 0.2s ease;
}

.range:hover {
  accent-color: var(--accent2);
}

.time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  user-select: none;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hint {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  min-height: 18px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 8px;
  border-left: 3px solid rgba(124, 58, 237, 0.5);
}

.panel--auth {
  max-width: 400px;
  margin: 0 auto;
  position: relative;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.12) 0%, rgba(34, 197, 94, 0.08) 100%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(124, 58, 237, 0.1) inset;
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel--auth::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 14px 14px 0 0;
}

.panel--auth .panel__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  padding: 32px 24px 24px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(34, 197, 94, 0.1));
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.auth {
  padding: 36px 36px 40px;
}

.auth__form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.auth__label {
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}

.auth__row {
  display: flex;
  gap: 10px;
  position: relative;
}

.input {
  flex: 1;
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  outline: none;
  font-size: 15px;
  transition: all 0.3s ease;
}

.input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.input:focus {
  border-color: rgba(124, 58, 237, 0.6);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.15),
    0 4px 12px rgba(124, 58, 237, 0.2);
  transform: translateY(-1px);
}

.input:hover:not(:focus) {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
}

.auth__row .btn--ghost {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 14px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.auth__row .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

.auth__submit {
  width: 100%;
  justify-content: center;
  padding: 14px 20px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.8), rgba(124, 58, 237, 0.6));
  border: 1px solid rgba(124, 58, 237, 0.7);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
  margin-top: 8px;
}

.auth__submit:hover {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.9), rgba(124, 58, 237, 0.7));
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
  transform: translateY(-2px);
}

.auth__submit:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
}

.auth .hint {
  margin-top: 4px;
  color: rgba(239, 68, 68, 0.9);
  font-size: 13px;
  min-height: 20px;
  text-align: center;
  font-weight: 500;
}

.main--single {
  grid-template-columns: 1fr;
  align-items: center;
  justify-content: center;
}

.footer {
  padding: 10px 18px 18px;
  color: var(--muted);
  font-size: 12px;
}

.footer__note {
  opacity: 0.92;
}