/* Theme tokens shared across components */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --bg-quaternary: #3a3a3a;
    --border-primary: #333;
    --border-secondary: #444;
    --border-accent: #666;
    --text-primary: #e0e0e0;
    --text-secondary: #888;
    --text-tertiary: #aaa;
    --text-muted: #666;
    --bg-hover: #252525;
    --text-white: #fff;
    --text-disabled: #ccc;
    --error: #a61919;
    --error-dark: #7d0f0f;
    --accent-primary: #4d4d4d;
    --accent-primary-dark: #3b3b3b;
}

/* Global reset and body defaults */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    height: 100vh;
    overflow: hidden;
}

.main-layout--hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

/* Authentication overlay */
.auth-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.82);
    z-index: 9999;
    padding: 20px;
}

.auth-overlay--hidden {
    display: none;
}

.auth-card {
    width: min(360px, 100%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.auth-tabs {
    display: inline-flex;
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    overflow: hidden;
    align-self: center;
}

.auth-tab {
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.auth-tab.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.auth-input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border-secondary);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.95rem;
}

.auth-input:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: 0 0 0 2px rgba(102, 102, 102, 0.25);
}

.auth-error {
    min-height: 18px;
    color: var(--error);
    font-size: 0.85rem;
}

.auth-success {
    min-height: 18px;
    color: #36c275;
    font-size: 0.85rem;
}

.auth-submit-btn {
    background: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    color: var(--text-white);
    border-radius: 10px;
    padding: 11px 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.auth-submit-btn:hover:not([disabled]) {
    background: var(--accent-primary-dark);
    transform: translateY(-1px);
}

.auth-submit-btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-hidden {
    display: none !important;
}

.auth-group.auth-hidden {
    display: none;
}

.auth-link-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    text-decoration: underline;
    align-self: flex-end;
    padding: 0;
}

.auth-link-btn:hover {
    color: var(--text-primary);
}

.auth-link-btn--inline {
    align-self: flex-start;
}

.auth-secondary-card {
    width: min(360px, 100%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.auth-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-message {
    min-height: 18px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.auth-message--error {
    color: var(--error);
}

.auth-message--success,
.auth-error--success {
    color: #36c275;
}

.auth-password-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 10px;
    padding: 10px 14px;
    margin-top: 8px;
    background: rgba(255, 255, 255, 0.02);
}

.auth-password-hint__title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.auth-password-hint__list {
    margin: 0;
    padding-left: 18px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.auth-password-hint__item {
    position: relative;
    padding-left: 18px;
    line-height: 1.4;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.auth-password-hint__item::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.auth-password-hint__item--met {
    color: #1f873d;
}

.auth-password-hint__item--met::before {
    content: '✓';
    font-weight: 600;
    color: #1f873d;
}

/* Button styles */
.btn, .settings-btn, .backup-btn, .restore-btn, .new-playlist-btn, .load-playlist-btn, .import-btn, .delete-all-btn {
    padding: 8px 16px;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
    line-height: 1.2;
}

.btn:hover,
.settings-btn:hover,
.backup-btn:hover,
.restore-btn:hover,
.new-playlist-btn:hover,
.load-playlist-btn:hover,
.import-btn:hover,
.delete-all-btn:hover {
    background: var(--bg-quaternary);
    border-color: var(--border-accent);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 8px rgba(102, 102, 102, 0.3);
}

.delete-btn {
    background: var(--error);
    color: var(--text-white);
    border-color: var(--error);
}

.delete-btn:hover {
    background: var(--error-dark);
    border-color: var(--error-dark);
}

.backup-btn, .restore-btn {
    padding: 10px 16px;
}

.primary-btn {
    padding: 10px 20px;
    border-radius: 6px;
    border: 1px solid var(--accent-primary);
    background: var(--accent-primary);
    color: var(--text-white);
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s ease, border-color 0.3s ease;
}

.primary-btn:hover {
    background: var(--accent-primary-dark);
    border-color: var(--accent-primary-dark);
}

.primary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.delete-all-btn {
    background: var(--error);
    color: var(--text-white);
    border-color: var(--error);
}

.delete-all-btn:hover {
    background: var(--error-dark);
    border-color: var(--error-dark);
}

.import-btn {
    padding: 12px 24px;
    font-size: 1rem;
}

.video-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.timestamp-btn {
    padding: 0 12px;
    min-width: 36px;
    height: calc(0.9rem * 1.2 + 16px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.timestamp-btn[data-tooltip] {
    position: relative;
}

.timestamp-btn[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translate(-50%, 4px);
    background: var(--bg-quaternary);
    color: var(--text-white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    line-height: 1.2;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 20;
}

.timestamp-btn[data-tooltip]::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translate(-50%, 4px);
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--bg-quaternary);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 19;
}

.timestamp-btn[data-tooltip]:hover::after,
.timestamp-btn[data-tooltip]:focus-visible::after {
    opacity: 1;
    transform: translate(-50%, 0);
}

.timestamp-btn[data-tooltip]:hover::before,
.timestamp-btn[data-tooltip]:focus-visible::before {
    opacity: 1;
    transform: translate(-50%, 0);
}

.timestamp-btn .timestamp-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.timestamp-btn .timestamp-icon svg {
    width: 1.6em;
    height: 1.6em;
    fill: currentColor;
}

/* Inputs and selects */
.setting-group select, .setting-group input, #playlistSelect {
    padding: 12px;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.setting-group select, .setting-group input, #playlistSelect {
    width: 100%;
}

.setting-group select:focus, .setting-group input:focus, #playlistSelect:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: 0 0 8px rgba(102, 102, 102, 0.3);
}

#playlistSelect option {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
}

/* Main layout and video section */
.main-layout {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
}

.video-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 0;
    min-height: 100vh;
    width: 100%;
}

.video-player {
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-primary);
}

.video-stage {
    position: relative;
    flex: 1;
    display: flex;
    background: #000;
    overflow: hidden;
}

#playerContainer {
    flex: 1;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--border-accent);
    font-size: 1.2rem;
    min-height: 400px;
}

.player-overlays {
    pointer-events: none;
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    opacity: 0;
    transition: opacity 3000ms ease-in-out;
    z-index: 2;
}

.player-overlays.is-visible {
    opacity: 1;
}

.video-overlay {
    width: 100%;
    flex: 0 0 auto;
    pointer-events: none;
}

.video-overlay--top,
.video-overlay--bottom {
    position: relative;
    background: transparent;
}

.video-overlay--top {
    flex-basis: clamp(140px, 26%, 240px);
}

.video-overlay--bottom {
    flex-basis: clamp(160px, 28%, 260px);
}

.video-overlay--top::before,
.video-overlay--top::after,
.video-overlay--bottom::before,
.video-overlay--bottom::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    pointer-events: none;
}

.video-overlay--top::before {
    top: 0;
    height: 90px;
    background: rgba(0, 0, 0, 1);
}

.video-overlay--top::after {
    top: 90px;
    height: 120px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0));
}

.video-overlay--bottom::before {
    bottom: 0;
    height: 50px;
    background: rgba(0, 0, 0, 1);
}

.video-overlay--bottom::after {
    bottom: 50px;
    height: 120px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0));
}

.interaction-shim {
    position: absolute;
    inset: 0;
    pointer-events: auto;
    background: transparent;
}

.use-default-player-ui .interaction-shim {
    display: none !important;
    pointer-events: none !important;
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
}

.player-controls + .video-info {
    border-top: none;
}

.use-default-player-ui .player-controls {
    display: none !important;
}

.use-default-player-ui .player-overlays {
    display: none !important;
}

.control-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-primary);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.control-btn:hover {
    background: var(--bg-accent);
    color: var(--text-white);
    transform: scale(1.05);
}

.control-btn:active {
    transform: scale(0.98);
}

.control-icon svg {
    width: 20px;
    height: 20px;
}

.control-icon--pause,
.control-icon--volume-mute {
    display: none;
}

#playPauseBtn.is-playing .control-icon--play {
    display: none;
}

#playPauseBtn.is-playing .control-icon--pause {
    display: inline-flex;
}

#muteToggleBtn.is-muted .control-icon--volume-up {
    display: none;
}

#muteToggleBtn.is-muted .control-icon--volume-mute {
    display: inline-flex;
}

.progress-control {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.seek-slider-container {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    min-width: 0;
}

.time-display {
    min-width: 48px;
    text-align: center;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
    font-size: 0.85rem;
}

.seek-bar {
    flex: 1;
    appearance: none;
    height: 6px;
    border-radius: 999px;
    background: var(--border-primary);
    outline: none;
    cursor: pointer;
}

.seek-tooltip {
    position: absolute;
    top: -26px;
    left: 0;
    background: var(--bg-quaternary);
    color: var(--text-white);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, 0);
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 1;
}

.seek-tooltip.visible {
    opacity: 1;
    transform: translate(-50%, -4px);
}

.seek-bar::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--text-white);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.seek-bar::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.seek-bar::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--text-white);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.seek-bar::-moz-range-thumb:hover {
    transform: scale(1.1);
}

.seek-bar::-webkit-slider-runnable-track,
.seek-bar::-moz-range-track {
    height: 6px;
    border-radius: 999px;
    background: transparent;
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 12px;
}

.player-volume-slider {
    width: 110px;
    appearance: none;
    height: 6px;
    border-radius: 999px;
    background: var(--border-primary);
    outline: none;
    cursor: pointer;
}

.player-volume-slider::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--text-white);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.player-volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.player-volume-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--text-white);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.player-volume-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
}

.player-volume-slider::-webkit-slider-runnable-track,
.player-volume-slider::-moz-range-track {
    height: 6px;
    border-radius: 999px;
    background: transparent;
}

#videoStage:fullscreen,
#videoStage:-webkit-full-screen {
    background: #000;
}

#videoStage:fullscreen #playerContainer,
#videoStage:-webkit-full-screen #playerContainer {
    min-height: 100%;
}

.fullscreen-icon {
    width: 100%;
    height: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.fullscreen-icon svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 1.8;
    fill: none;
    transition: transform 200ms ease;
}

.fullscreen-icon__exit {
    display: none;
}

#fullscreenToggleBtn.is-fullscreen .fullscreen-icon__enter {
    display: none;
}

#fullscreenToggleBtn.is-fullscreen .fullscreen-icon__exit {
    display: block;
}

.video-info {
    padding: 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
}

.video-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.video-title-container {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.video-info h3 {
    color: var(--text-primary);
    margin: 0;
    font-size: 1.1rem;
    min-width: 0;
}

.youtube-link {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    padding: 6px;
    border-radius: 6px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.youtube-link:hover {
    color: #ff6b6b;
    background: var(--bg-tertiary);
    transform: scale(1.1);
}

.youtube-link svg {
    width: 14px;
    height: 14px;
}

.video-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.playlist-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.playlist-info-row p {
    margin: 0;
}

.playlist-settings-btn {
    flex-shrink: 0;
}

/* Playlist sidebar and cards */
.playlist-section {
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.playlist-section h3 {
    color: var(--text-primary);
    background: var(--bg-secondary);
    font-size: 1.1rem;
}

.playlist-container {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

/* Playlist & Video Items */
.playlist-item, .video-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-primary);
    cursor: grab;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
}

.video-item {
    padding: 16px;
    padding-top: 22px;
    padding-right: 48px;
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    margin-bottom: 12px;
    background: #222;
    border-bottom: 1px solid var(--border-primary);
    position: relative;
    align-items: stretch;
}

.playlist-item:hover, .video-item:hover {
    background: var(--bg-hover);
}

.video-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-accent);
}

.playlist-item.active {
    background: var(--bg-quaternary);
    border-left: 4px solid var(--border-accent);
}

.playlist-item img, .video-item img {
    object-fit: cover;
    border-radius: 4px;
    margin-right: 12px;
    border: 1px solid var(--border-primary);
}

.playlist-item img {
    width: 60px;
    height: 45px;
}

.video-item img {
    width: 80px;
    height: 60px;
    border-radius: 6px;
    margin-right: 16px;
    border: 1px solid var(--border-secondary);
    align-self: center;
}

.playlist-item-info, .video-item-info {
    flex: 1;
    min-width: 0;
}

.playlist-item-title, .video-item-title {
    font-weight: 500;
    margin-bottom: 4px;
    display: -webkit-box;
    line-clamp: 2;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.3;
}

.video-item-title {
    text-decoration: none;
    display: block;
    margin-bottom: 8px;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.video-item-title:hover {
    color: var(--text-disabled);
    text-decoration: underline;
}

.playlist-item-duration {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.playlist-item-meta,
.video-meta-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.video-meta-row {
    margin-bottom: 12px;
}

.empty-playlist, .empty-list {
    text-align: center;
    color: var(--border-accent);
    padding: 40px 20px;
    font-style: italic;
}

/* Modal Components */
.modal, .confirm-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.confirm-modal {
    z-index: 1500;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(6px);
    animation: fadeIn 0.2s ease-out;
}

.modal-content,
.confirm-modal-content {
    background-color: var(--bg-secondary);
    margin: 20px auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    border: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
}

.modal-content {
    width: 94%;
    max-width: 960px;
    height: calc(100vh - 40px);
    overflow: hidden;
}

.modal-footer {
    padding: 0 30px 30px;
}

.confirm-modal-content {
    margin: 25% auto;
    width: 90%;
    max-width: 400px;
    height: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
    animation: slideIn 0.3s ease-out;
}

.confirm-modal-content.popup-style {
    position: absolute;
    margin: 0;
    max-width: 320px;
    z-index: 2000;
    animation: popupSlideIn 0.2s ease-out;
}

.confirm-modal-content.popup-style .confirm-modal-header { display: none; }
.confirm-modal-content.popup-style .confirm-modal-body { padding: 16px 20px 12px; }
.confirm-modal-content.popup-style .confirm-modal-footer { padding: 0 20px 16px; }

.modal-header, .confirm-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 30px;
    border-bottom: 1px solid var(--border-primary);
    background: #222;
}

.confirm-modal-header {
    padding: 20px 24px 0 24px;
    text-align: center;
    justify-content: center;
}

.modal-header h2, .confirm-modal-header h3 {
    color: var(--text-primary);
    margin: 0;
    font-size: 1.3rem;
}

.confirm-modal-header h3 {
    font-size: 1.2rem;
    font-weight: 500;
}

.close-btn {
    background: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: none !important;
    outline: none;
    box-shadow: none;
    -webkit-appearance: none;
    appearance: none;
    position: relative;
    transition: all 0.3s ease;
}

#settingsModal.videos-tab-active .close-btn {
    border-radius: 0 0 7px 0;
}

.close-btn:hover {
    background: var(--error);
    color: var(--text-white);
    transform: scale(1.1);
}

.confirm-modal-body {
    padding: 16px 24px 24px 24px;
    text-align: center;
}

.confirm-modal-body p {
    color: var(--text-disabled);
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.4;
}

.confirm-input {
    width: 100%;
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-secondary);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.confirm-input:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: 0 0 0 2px rgba(100, 149, 237, 0.25);
}

.confirm-input-error {
    display: none;
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--error);
    text-align: center;
}

.confirm-input.input-error,
.confirm-input-error.visible {
    border-color: var(--error);
    display: block;
}


.confirm-modal-footer {
    display: flex;
    gap: 12px;
    padding: 0 24px 24px 24px;
    justify-content: center;
}

.confirm-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 80px;
}

.cancel-btn {
    background: var(--border-secondary);
    color: var(--text-primary);
}

.confirm-btn {
    background: var(--border-accent);
    color: var(--text-primary);
}

.cancel-btn:hover {
    background: #555;
    transform: translateY(-1px);
}

.confirm-btn:hover {
    background: #777;
    transform: translateY(-1px);
}

.delete-btn:hover {
    background: var(--error-dark);
    transform: translateY(-1px);
}

/* Tabs & Settings */
.tabs {
    display: flex;
    background: #222;
    border-bottom: 1px solid var(--border-primary);
}

.tab-btn {
    background: none;
    border: none;
    padding: 16px 28px;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    flex: 1;
}

.tab-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--border-accent);
    background: var(--bg-secondary);
}

.tab-content {
    padding: 30px;
    flex: 1;
    overflow-y: auto;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

#settingsTab.tab-panel.active {
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.faq-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
    color: var(--text-primary);
}

.faq-section a {
    color: var(--border-accent);
    text-decoration: none;
    border-bottom: 1px dotted var(--border-accent);
    padding-bottom: 1px;
}

.faq-section a:hover {
    color: var(--text-white);
    border-bottom-color: var(--text-white);
}

.faq-item h3 {
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.faq-item p {
    margin: 0;
    line-height: 1.6;
    color: var(--text-secondary);
}

.setting-group, .input-group {
    margin-bottom: 25px;
}

#settingsTab .settings-version {
    display: block;
    width: 100%;
    margin: auto 0 0;
    padding-top: 16px;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    line-height: 1.2;
    text-align: center;
}

.input-group {
    margin-bottom: 20px;
}

.setting-group label, .input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.import-options {
    display: flex;
    align-items: center;
    margin: 8px 0 0 0;
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.checkbox-option label {
    cursor: pointer;
    color: var(--text-primary);
    white-space: nowrap;
}

.checkbox-option .help-icon {
    font-size: 10px;
    min-width: 16px;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    font-size: 1rem;
    margin-bottom: 12px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.setting-row--split {
    justify-content: flex-start;
    gap: 12px;
    position: relative;
}

.setting-row--split .setting-label {
    min-width: auto;
}

.setting-toggle-wrapper {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.setting-toggle {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.setting-toggle-visual {
    display: inline-block;
    width: 44px;
    height: 22px;
    background: var(--border-primary);
    border-radius: 11px;
    position: relative;
    transition: background 0.25s ease;
}

.setting-toggle-visual::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 16px;
    height: 16px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: transform 0.25s ease, background 0.25s ease;
}

.setting-toggle:checked + .setting-toggle-visual {
    background: #4a4a4a;
}

.setting-toggle:checked + .setting-toggle-visual::after {
    transform: translateX(22px);
    background: var(--text-primary);
}

.setting-toggle:focus-visible + .setting-toggle-visual {
    outline: 2px solid var(--text-secondary);
    outline-offset: 2px;
}

.setting-label {
    min-width: 120px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
}

.setting-label-note {
    display: block;
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.setting-group h4 {
    color: var(--text-primary);
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.setting-group h4 .setting-label-note {
    display: inline;
    margin-top: 0;
    font-weight: 400;
}

.help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-quaternary);
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: normal;
    cursor: help;
    position: relative;
    transition: all 0.2s ease;
}

.help-icon:hover {
    background: var(--border-accent);
    color: var(--text-primary);
}

.help-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    background: rgba(42, 42, 42, 1) !important;
    color: #ffffff !important;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: normal;
    display: inline-block;
    white-space: normal;
    width: max-content;
    max-width: 220px;
    min-width: 160px;
    word-break: normal;
    overflow-wrap: normal;
    text-align: center;
    z-index: 10000;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    border: 2px solid #666666 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.8) !important;
    backdrop-filter: none;
    opacity: 1 !important;
}

.help-icon:hover::before {
    content: '';
    position: absolute;
    top: calc(100% + 2px);
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #666666;
    z-index: 10000;
    opacity: 1 !important;
}



.setting-group p {
    color: var(--text-tertiary);
    margin: 0 0 15px 0;
   font-size: 0.9rem;
    line-height: 1.4;
}

.share-token-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 12px;
    background: transparent;
    border: none;
    border-radius: 0;
}

.share-token-display {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.share-token-display--stacked {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}

.share-token-url-row {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.share-token-label {
    font-weight: 600;
    color: var(--text-primary);
}

.share-token-value {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.9rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--border-secondary);
    word-break: break-all;
    max-width: 100%;
    display: flex;
    align-items: center;
    min-height: 32px;
}

.share-token-url {
    flex: 1 1 auto;
    width: 100%;
}

.share-token-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.share-token-btn {
    padding: 6px 12px;
}

.share-token-btn--danger {
    border-color: var(--error);
    color: var(--text-white);
    background: var(--error);
}

.share-token-btn--danger:hover {
    background: var(--error-dark);
    border-color: var(--error-dark);
}

.share-token-copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: 1px solid var(--border-secondary);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    padding: 0;
}

.share-token-copy-btn:hover,
.share-token-copy-btn:focus-visible {
    background: var(--bg-quaternary);
    color: var(--text-white);
    border-color: var(--border-accent);
}

.share-token-copy-btn svg {
    width: 14px;
    height: 14px;
}

.share-token-status {
    min-height: 1.2em;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.share-token-status--success {
    color: #2ecc71;
}

.share-token-status--error {
    color: var(--error);
}

/* Time input with import button styling */
.time-input-with-import {
    display: flex;
    align-items: stretch;
    gap: 6px;
    justify-content: flex-end;
    justify-self: end;
}

.time-action-buttons {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-secondary);
    border-radius: 4px;
    overflow: hidden;
    min-width: 28px;
}

.time-action-btn {
    width: 100%;
    height: 24px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.2s ease;
    border: none;
    padding: 0;
}

.time-action-btn + .time-action-btn {
    border-top: 1px solid var(--border-secondary);
}

.time-action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.import-time-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: var(--bg-primary);
    color: var(--text-muted);
}

.import-time-btn.disabled:hover {
    background: var(--bg-primary);
    color: var(--text-muted);
}

.clear-time-btn {
    font-size: 12px;
    line-height: 1;
}


/* Specialized Components */
.video-item-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 180px;
}

.time-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.video-volume-inline {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: flex-start;
    margin: 8px 0 0;
}

.video-volume-icon svg {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
}

.volume-reset-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    transition: color 0.2s ease;
    position: relative;
}

.volume-reset-btn:hover {
    color: var(--text-white);
}

.volume-reset-btn[data-tooltip],
.video-copy-btn[data-tooltip],
.share-token-copy-btn[data-tooltip],
.remove-btn[data-tooltip],
.close-btn[data-tooltip] {
    position: relative;
}

.volume-reset-btn[data-tooltip]:not([data-tooltip-sub])::after,
.volume-reset-btn[data-tooltip]:not([data-tooltip-sub]):hover::after,
.volume-reset-btn[data-tooltip]:not([data-tooltip-sub]):focus-visible::after,
.video-copy-btn[data-tooltip]::after,
.video-copy-btn[data-tooltip]:hover::after,
.video-copy-btn[data-tooltip]:focus-visible::after,
.share-token-copy-btn[data-tooltip]::after,
.share-token-copy-btn[data-tooltip]:hover::after,
.share-token-copy-btn[data-tooltip]:focus-visible::after,
.remove-btn[data-tooltip]::after,
.remove-btn[data-tooltip]:hover::after,
.remove-btn[data-tooltip]:focus-visible::after,
.close-btn[data-tooltip]::after,
.close-btn[data-tooltip]:hover::after,
.close-btn[data-tooltip]:focus-visible::after {
    content: attr(data-tooltip);
    position: absolute;
    background: var(--bg-quaternary);
    color: var(--text-white);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.volume-reset-btn[data-tooltip]:not([data-tooltip-sub])::after {
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
}

.video-copy-btn[data-tooltip]::after,
.remove-btn[data-tooltip]::after {
    top: 50%;
    right: 105%;
    transform: translateY(-50%);
}

.share-token-copy-btn[data-tooltip]::after {
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
}

.close-btn[data-tooltip]::after {
    top: calc(100% + 8px);
    left: 50%;
    transform: translate(-50%, -4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 30;
}

.volume-reset-btn[data-tooltip]:not([data-tooltip-sub]):hover::after,
.volume-reset-btn[data-tooltip]:not([data-tooltip-sub]):focus-visible::after,
.video-copy-btn[data-tooltip]:hover::after,
.video-copy-btn[data-tooltip]:focus-visible::after,
.share-token-copy-btn[data-tooltip]:hover::after,
.share-token-copy-btn[data-tooltip]:focus-visible::after,
.remove-btn[data-tooltip]:hover::after,
.remove-btn[data-tooltip]:focus-visible::after,
.close-btn[data-tooltip]:hover::after,
.close-btn[data-tooltip]:focus-visible::after {
    opacity: 1;
}

.close-btn[data-tooltip]:hover::after,
.close-btn[data-tooltip]:focus-visible::after {
    transform: translate(-50%, 0);
}

.volume-reset-btn .volume-reset-tooltip {
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-quaternary);
    color: var(--text-white);
    padding: 4px 8px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    font-size: 0.7rem;
    line-height: 1.2;
    text-align: center;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 10;
}

.volume-reset-btn .volume-reset-tooltip .tooltip-sub {
    font-size: 0.6rem;
}

.volume-reset-btn:hover .volume-reset-tooltip,
.volume-reset-btn:focus-visible .volume-reset-tooltip {
    opacity: 1;
}

.volume-slider-container {
    position: relative;
    display: inline-flex;
    align-items: center;
    width: 100%;
}

.volume-slider-container input[type="range"] {
    width: 100%;
    display: block;
    flex: 1 1 auto;
}

.video-volume-inline .volume-slider-container {
    width: 70px;
}

.playlist-volume-control .volume-slider-container {
    width: 140px;
}

.video-volume-slider,
.playlist-volume-slider {
    accent-color: var(--border-accent);
    background: transparent;
    -webkit-appearance: none;
    appearance: none;
}

.video-volume-slider::-webkit-slider-thumb,
.playlist-volume-slider::-webkit-slider-thumb {
    width: 8px;
    height: 8px;
    background: var(--text-white);
    border: 1px solid transparent;
    border-radius: 50%;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: none;
    margin-top: -2px;
}

.video-volume-slider::-moz-range-thumb,
.playlist-volume-slider::-moz-range-thumb {
    width: 8px;
    height: 8px;
    background: var(--text-white);
    border: 1px solid transparent;
    border-radius: 50%;
    cursor: pointer;
}

.video-volume-slider::-webkit-slider-runnable-track,
.playlist-volume-slider::-webkit-slider-runnable-track {
    height: 4px;
    background: var(--slider-track, var(--border-primary));
    border-radius: 2px;
    border: none;
}

.video-volume-slider::-moz-range-track,
.playlist-volume-slider::-moz-range-track {
    height: 4px;
    background: var(--slider-track, var(--border-primary));
    border-radius: 2px;
    border: none;
}

.volume-tooltip {
    position: absolute;
    top: -24px;
    background: var(--bg-quaternary);
    color: var(--text-white);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transform: translateX(-50%);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.volume-tooltip.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(-2px);
}

.time-input-group {
    display: grid;
    grid-template-columns: max-content 1fr;
    align-items: center;
    column-gap: 8px;
    width: 100%;
}

.time-input-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    text-align: right;
    white-space: nowrap;
}

/* Custom Time Input */
.custom-time-input {
    display: flex;
    align-items: center;
    font-family: monospace;
    font-size: 0.9rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: 4px;
    padding: 6px 8px;
    min-width: 90px;
}

.time-segment {
    background: var(--border-primary);
    color: var(--text-primary);
    padding: 2px 4px;
    border-radius: 3px;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
    width: 28px;
    text-align: center;
    display: inline-block;
}

.time-segment:hover {
    background: var(--border-accent);
    color: var(--text-white);
    transform: scale(1.05);
}

.time-colon {
    color: var(--text-secondary);
    margin: 0 2px;
    user-select: none;
    font-weight: bold;
}

.time-segment-input {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-accent);
    border-radius: 3px;
    padding: 2px 4px;
    width: 28px;
    text-align: center;
    font-family: monospace;
    font-size: 0.9rem;
    outline: none;
    box-sizing: border-box;
}

.time-segment-input:focus {
    background: var(--bg-tertiary);
    box-shadow: 0 0 4px rgba(102, 102, 102, 0.3);
}


.video-drag-handle,
.playlist-drag-handle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    padding: 0 4px;
    border-radius: 6px;
    cursor: grab;
    user-select: none;
    transition: background 0.2s ease, box-shadow 0.2s ease;
    align-self: center;
    height: 62px;
    min-height: 62px;
    background: transparent;
    --drag-line-color: var(--border-accent);
}

.video-drag-handle::before,
.playlist-drag-handle::before {
    content: '';
    position: absolute;
    top: 5px;
    bottom: 5px;
    left: calc(50% - 3px);
    width: 2px;
    border-radius: 2px;
    background: var(--drag-line-color);
    box-shadow: 4px 0 0 var(--drag-line-color);
}

.video-drag-handle:hover,
.playlist-drag-handle:hover {
    background: var(--bg-tertiary);
    box-shadow: 0 0 0 1px var(--border-primary);
    --drag-line-color: var(--text-primary);
}

.video-drag-handle:active,
.playlist-drag-handle:active {
    cursor: grabbing;
}

.playlist-drag-handle {
    margin-left: -8px;
    padding-right: 6px;
}

.video-drag-handle {
    margin-left: -8px;
    padding-right: 6px;
}

.video-item-toolbar {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    width: 32px;
    height: 100%;
    z-index: 2;
}

.video-item-toolbar button {
    background: rgba(0, 0, 0, 0.45);
    color: var(--text-disabled);
    border: 1px solid rgba(255, 255, 255, 0.12);
    width: 100%;
    height: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background 0.2s ease, color 0.2s ease;
}

.video-item-toolbar button:not(.remove-btn):hover {
    background: rgba(255, 255, 255, 0.18);
    color: var(--text-white);
}

.video-item-toolbar .remove-btn {
    font-size: 16px;
    font-weight: normal;
    line-height: 1;
    color: var(--text-white);
    background: var(--error);
    border: none;
    border-left: 1px solid var(--border-primary);
    border-bottom: 1px solid var(--border-primary);
    border-top-right-radius: 8px;
    border-top-left-radius: 0;
}

.video-item-toolbar .remove-btn:hover {
    background: var(--error-dark);
    border-color: var(--border-primary);
}

.video-item-toolbar .video-copy-btn {
    border-top-right-radius: 0;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

#settingsModal.videos-tab-active #videosTab .video-item-toolbar .video-copy-btn {
    border-top: none;
    border-right: none;
}

.video-copy-btn svg {
    width: 12px;
    height: 12px;
}

/* Playlist Management */
.playlists-section {
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}

.playlist-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-primary);
}

.playlist-header h3 {
    margin: 0;
    color: var(--text-primary);
}

.playlist-totals {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
    color: var(--text-primary);
    gap: 24px;
}

.playlist-totals-left p {
    margin: 0;
    font-size: 12px;
    line-height: 1.5;
}

.playlist-totals-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
}

.global-volume-label {
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.5;
}

.global-volume-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.global-volume-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.global-volume-icon svg {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    display: block;
}

.global-volume-control .volume-slider-container {
    width: 160px;
}

.playback-mode-section {
    margin: 15px 0;
    padding: 15px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-primary);
}

.playback-mode-section label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.playback-mode-section select {
    width: 100%;
    padding: 10px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
    border-radius: 4px;
    font-size: 14px;
}

.saved-playlists-container, .videos-container {
    flex: 1;
    overflow-y: auto;
}

.saved-playlist-item {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    margin-bottom: 12px;
    background: #222;
    transition: all 0.3s ease;
}

.saved-playlist-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-accent);
}

.saved-playlist-item.active {
    background: var(--bg-quaternary);
    border-color: var(--border-accent);
    box-shadow: 0 0 8px rgba(102, 102, 102, 0.3);
}

.saved-playlist-item.playlist-scroll-target {
    box-shadow: 0 0 0 2px var(--border-accent), 0 0 12px rgba(102, 102, 102, 0.4);
}

.saved-playlist-item.disabled {
    opacity: 0.6;
}

.saved-playlist-item.disabled .playlist-name {
    text-decoration: line-through;
    color: var(--text-secondary);
}

.saved-playlist-item.played .playlist-name {
    color: #ff4a4a;
}

.playlist-info {
    flex: 1;
    min-width: 0;
}

/* Playlist scroll shortcuts */
.playlist-scroll-controls {
    position: sticky;
    bottom: -20px;
    width: 100%;
    height: 0;
    display: block;
    overflow: visible;
    z-index: 4;
    pointer-events: none;
}

.playlist-scroll-controls-stack {
    position: absolute;
    right: -26px;
    bottom: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: auto;
}

.playlist-scroll-btn {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    border: 1px solid var(--border-primary);
    background: #222;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.55);
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    padding: 0;
    pointer-events: auto;
}

.playlist-scroll-btn:hover:not(:disabled),
.playlist-scroll-btn:focus-visible:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--border-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.65);
    outline: none;
}

.playlist-scroll-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
}

.playlist-scroll-icon {
    width: 16px;
    height: 16px;
    display: block;
}

.playlist-scroll-icon--current {
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
}

@media (max-width: 768px) {
    .playlist-scroll-controls {
        bottom: 16px;
        width: 100%;
    }

    .playlist-scroll-controls-stack {
        gap: 6px;
        right: -22px;
    }

    .playlist-scroll-btn {
        width: 20px;
        height: 20px;
        border-radius: 5px;
    }

    .playlist-scroll-icon {
        width: 14px;
        height: 14px;
    }
}

.playlist-name {
    color: var(--text-primary);
    margin: 0 0 4px 0;
    font-size: 1rem;
    font-weight: 500;
}

.playlist-api-name-group {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 6px 0;
}

.playlist-api-name-input {
    flex: 0 0 110px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    color: var(--text-primary);
    padding: 2px 4px;
    font-size: 0.7rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.playlist-api-name-help {
    position: relative;
}

.playlist-api-name-input::placeholder {
    color: var(--text-tertiary);
}

.playlist-api-name-input:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: 0 0 4px rgba(102, 102, 102, 0.3);
}

.playlist-meta {
    color: var(--text-secondary);
    margin: 4px 0 2px 0;
    font-size: 0.85rem;
}

.playlist-time {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.8rem;
}

.playlist-time + .playlist-time {
    margin-top: 2px;
}

.playlist-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
    margin-left: auto;
}

.playlist-order-group,
.video-order-group {
    display: flex;
    align-items: center;
    gap: 8px;
    align-self: stretch;
}

.video-order-group {
    margin-right: 16px;
}

.playlist-order-controls,
.video-order-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    min-width: 28px;
}

.playlist-move-btn,
.video-move-btn {
    background: var(--bg-tertiary);
    border: none;
    width: 22px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    font-size: 0.75rem;
    line-height: 1;
    transition: background 0.2s ease, color 0.2s ease;
    position: relative;
    --order-icon-color: var(--text-secondary);
}

.playlist-order-controls .playlist-move-btn:first-of-type,
.video-order-controls .video-move-btn:first-of-type {
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
}

.playlist-order-controls .playlist-move-btn:last-of-type,
.video-order-controls .video-move-btn:last-of-type {
    border-bottom-left-radius: 4px;
    border-bottom-right-radius: 4px;
}

.playlist-order-controls .playlist-move-btn:not(:first-of-type):not(:last-of-type),
.video-order-controls .video-move-btn:not(:first-of-type):not(:last-of-type) {
    border-radius: 0;
}

.playlist-move-btn:hover:not(:disabled),
.video-move-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
    --order-icon-color: var(--text-primary);
}

.playlist-move-btn:disabled,
.video-move-btn:disabled {
    opacity: 0.4;
    cursor: default;
    background: var(--bg-tertiary);
    color: var(--text-disabled);
    --order-icon-color: var(--text-disabled);
}

/* Arrow glyphs */
.playlist-move-up::before,
.playlist-move-down::before,
.playlist-move-top::before,
.playlist-move-top::after,
.playlist-move-bottom::before,
.playlist-move-bottom::after,
.video-move-up::before,
.video-move-down::before,
.video-move-top::before,
.video-move-top::after,
.video-move-bottom::before,
.video-move-bottom::after {
    content: '';
    display: block;
    margin: 0 auto;
}

.playlist-move-up::before,
.playlist-move-top::after,
.video-move-up::before,
.video-move-top::after {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid var(--order-icon-color);
}

.playlist-move-down::before,
.playlist-move-bottom::before,
.video-move-down::before,
.video-move-bottom::before {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--order-icon-color);
}

.playlist-move-up::before,
.video-move-up::before {
    margin-top: 4px;
    margin-bottom: 3px;
}

.playlist-move-down::before,
.video-move-down::before {
    margin-top: 3px;
    margin-bottom: 4px;
}

.playlist-move-top::before,
.playlist-move-bottom::after,
.video-move-top::before,
.video-move-bottom::after {
    width: 12px;
    height: 2px;
    border-radius: 1px;
    background: var(--order-icon-color);
}

.playlist-move-top::before,
.video-move-top::before {
    margin-top: 3px;
    margin-bottom: 1px;
}

.playlist-move-top::after,
.video-move-top::after {
    margin-top: 1px;
    margin-bottom: 3px;
}

.playlist-move-bottom::before,
.video-move-bottom::before {
    margin-top: 3px;
    margin-bottom: 1px;
}

.playlist-move-bottom::after,
.video-move-bottom::after {
    margin-top: 1px;
    margin-bottom: 3px;
}

.playlist-position-input,
.video-position-input {
    width: 40px;
    height: 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    color: var(--text-primary);
    text-align: center;
    font-size: 0.8rem;
    padding: 0;
}

.playlist-position-input:focus,
.video-position-input:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: 0 0 4px rgba(102, 102, 102, 0.3);
}

.playlist-position-input::-webkit-outer-spin-button,
.playlist-position-input::-webkit-inner-spin-button,
.video-position-input::-webkit-outer-spin-button,
.video-position-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.playlist-position-input,
.video-position-input {
    -moz-appearance: textfield;
    appearance: textfield;
}

.playlist-volume-row {
    display: flex;
    align-items: center;
    gap: 12px;
    align-self: stretch;
    justify-content: flex-end;
}

.playlist-volume-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.playlist-volume-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.playlist-volume-icon svg {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    display: block;
}

.playlist-updated {
    margin: 4px 0 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: right;
}

.playlist-toggle-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 8px;
}

.playlist-toggle-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 0.75rem;
    color: var(--text-primary);
    line-height: 1.15;
}

.playlist-toggle {
    appearance: none;
    width: 34px;
    height: 18px;
    background: var(--border-primary);
    border-radius: 9px;
    position: relative;
    cursor: pointer;
    transition: background 0.3s ease;
    border: none;
    outline: none;
}

.playlist-toggle:checked {
    background: #4a4a4a;
}

.playlist-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.playlist-toggle:checked::after {
    transform: translateX(16px);
    background: var(--text-primary);
}

.playlist-toggle-text {
    min-width: 54px;
    text-align: left;
    font-weight: 500;
}

.playlist-toggle--played:not(:checked) + .playlist-toggle-text {
    color: var(--text-secondary);
}

.playlist-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.load-playlist-btn {
    background: #3d3d3d;
}

.load-playlist-btn:hover {
    background: #4a4a4a;
}

.load-playlist-btn.current {
    background: var(--bg-primary);
    color: var(--text-muted);
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: auto;
}

.load-playlist-btn, .copy-playlist-btn, .rename-playlist-btn, .delete-playlist-btn {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.load-playlist-btn:disabled {
    background: #555;
    cursor: not-allowed;
}

.copy-playlist-btn,
.rename-playlist-btn {
    background: var(--border-accent);
    color: var(--text-primary);
}

.copy-playlist-btn:hover,
.rename-playlist-btn:hover {
    background: #777;
}

.delete-playlist-btn {
    background: var(--error);
    color: var(--text-white);
}

.delete-playlist-btn:hover {
    background: var(--error-dark);
    color: var(--text-white);
}

.delete-playlist-btn.disabled {
    background: var(--bg-primary);
    color: var(--text-muted);
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: auto;
}

.delete-playlist-btn.disabled:hover {
    background: var(--bg-primary);
    color: var(--text-muted);
    cursor: not-allowed;
}

.backup-restore-section, .restore-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.restore-section {
    gap: 8px;
}

.import-btn:disabled {
    background: #555;
    cursor: not-allowed;
}

.import-status {
    padding: 12px;
    border-radius: 6px;
    margin-top: 15px;
    display: none;
    font-size: 0.9rem;
}

.import-status.success {
    background: #1e3a1e;
    color: #4caf50;
    border: 1px solid #2e7d32;
    display: block;
}

.import-status.error {
    background: #3a1e1e;
    color: #f44336;
    border: 1px solid #d32f2f;
    display: block;
}

.import-status.loading {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-accent);
    display: block;
}

/* Animations & Effects */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes popupSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.sortable-ghost {
    opacity: 0.4;
    background: var(--bg-secondary) !important;
}

.sortable-chosen {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.sortable-drag {
    transform: rotate(2deg);
    opacity: 0.6;
}

/* Scrollbar Styles */
.playlist-container::-webkit-scrollbar, .videos-container::-webkit-scrollbar, .tab-content::-webkit-scrollbar {
    width: 8px;
}

.playlist-container::-webkit-scrollbar-track, .videos-container::-webkit-scrollbar-track, .tab-content::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.playlist-container::-webkit-scrollbar-thumb, .videos-container::-webkit-scrollbar-thumb, .tab-content::-webkit-scrollbar-thumb {
    background: var(--border-secondary);
    border-radius: 4px;
}

.playlist-container::-webkit-scrollbar-thumb:hover, .videos-container::-webkit-scrollbar-thumb:hover, .tab-content::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        overflow-x: hidden;
        overflow-y: auto;
    }

    .main-layout {
        min-height: 100vh;
        height: auto;
        width: 100%;
    }

    .video-section {
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: auto minmax(260px, 45vh);
        min-height: 100vh;
        height: auto;
        width: 100%;
    }

    #playerContainer {
        min-height: 220px;
    }

    .playlist-section {
        height: auto;
        max-height: none;
    }

    .player-controls,
    .video-info {
        padding: 12px 16px;
    }

    .player-controls {
        flex-wrap: wrap;
        gap: 12px;
    }

    .progress-control {
        flex: 1 1 100%;
    }

    .modal-content {
        width: 95%;
        margin: 10px auto;
        height: calc(100vh - 20px);
    }

    .modal-header, .tab-content {
        padding: 20px;
    }

    .video-item {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .video-drag-handle {
        position: absolute;
        top: 8px;
        right: 8px;
        margin-right: 0;
    }

    .video-item img {
        width: 100%;
        height: 150px;
        margin-right: 0;
        margin-bottom: 12px;
    }

    .video-item-controls {
        width: 100%;
        align-items: flex-start;
        min-width: unset;
        flex-direction: column;
        gap: 10px;
    }

    .time-controls {
        width: 100%;
    }

    .time-input-group {
        justify-content: space-between;
    }

    .time-input-group label {
        text-align: left;
        min-width: unset;
        flex: 1;
    }

    .remove-btn {
        align-self: center;
    }

    .api-key-group {
        flex-direction: column;
        align-items: stretch;
    }

    .api-key-group input {
        min-width: unset;
        margin-bottom: 10px;
    }

    .save-api-key-btn, .test-api-key-btn {
        width: 100%;
    }
}

/* API Key Management */
.api-key-group {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.api-key-group input {
    flex: 1;
    min-width: 200px;
    padding: 10px 12px;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.save-api-key-btn, .test-api-key-btn {
    padding: 10px 16px;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    background: var(--bg-quaternary);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.save-api-key-btn:hover, .test-api-key-btn:hover {
    background: var(--border-accent);
    border-color: var(--border-accent);
}

.save-api-key-btn:disabled, .test-api-key-btn:disabled {
    background: var(--border-primary);
    color: var(--text-secondary);
    cursor: not-allowed;
}

.api-key-help {
    margin-top: 8px;
}

.account-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.account-note {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.reset-password-btn {
    align-self: flex-start;
    padding: 10px 18px;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    background: var(--accent-primary);
    color: var(--text-white);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.reset-password-btn:hover {
    background: var(--accent-primary-dark);
    transform: translateY(-1px);
}

.reset-password-btn:active {
    transform: translateY(0);
}

.api-key-help p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.api-key-help a,
.faq-section a {
    color: var(--border-accent);
    text-decoration: none;
    border-bottom: 1px dotted var(--border-accent);
    padding-bottom: 1px;
}

.api-key-help a:hover,
.faq-section a:hover {
    color: var(--text-white);
    border-bottom-color: var(--text-white);
}

/* Auth overlay styling */
.auth-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.82);
    z-index: 9999;
    padding: 20px;
}

.auth-overlay--hidden {
    display: none;
}

.auth-card {
    width: min(360px, 100%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.auth-tabs {
    display: inline-flex;
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    overflow: hidden;
    align-self: center;
}

.auth-tab {
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.auth-tab.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.auth-input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border-secondary);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.95rem;
}

.auth-input:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: 0 0 0 2px rgba(102, 102, 102, 0.25);
}

.auth-error {
    min-height: 18px;
    color: var(--error);
    font-size: 0.85rem;
}

.auth-submit-btn {
    background: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    color: var(--text-white);
    border-radius: 10px;
    padding: 11px 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.auth-submit-btn:hover:not([disabled]) {
    background: var(--accent-primary-dark);
    transform: translateY(-1px);
}

.auth-submit-btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-group.auth-hidden {
    display: none;
}
.playlist-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px 15px 20px;
    border-bottom: 1px solid var(--border-primary);
}

.playlist-section-header h3 {
    margin: 0;
}

.logout-btn {
    padding: 6px 14px;
}