/**
 * Apple Video Player - 样式文件
 * 苹果设计语言：简洁、流畅、毛玻璃效果
 */

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

:root {
    --primary-color: #007AFF;
    --bg-color: #000000;
    --control-bg: rgba(30, 30, 30, 0.95);
    --text-color: #FFFFFF;
    --accent-color: #007AFF;
    --danger-color: #FF3B30;
    --success-color: #34C759;
    --warning-color: #FF9500;
    --backdrop-blur: blur(20px);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', sans-serif;
    background: var(--bg-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#app {
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

/* ==================== 播放器容器 ==================== */
.player-wrapper {
    width: 100%;
    max-width: 1200px;
    position: relative;
}

.player-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.player-container.theater {
    max-width: 1600px;
}

.player-container.fullscreen {
    max-width: 100vw;
    max-height: 100vh;
    border-radius: 0;
    aspect-ratio: auto;
}

.player-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 视频元素 */
#video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
    display: block;
}

/* ==================== 顶部标题栏 ==================== */
.top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 16px 20px;
    background: linear-gradient(180deg, rgba(0,0,0,0.8) 0%, transparent 100%);
    display: flex;
    justify-content: space-between;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 10;
    pointer-events: none;
}

.player-container:hover .top-bar,
.player-container.controls-visible .top-bar,
.player-container.paused .top-bar {
    opacity: 1;
}

.video-title {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 70%;
    letter-spacing: -0.02em;
}

.source-indicator {
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    font-weight: 500;
    background: rgba(255,255,255,0.1);
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border: 1px solid rgba(255,255,255,0.1);
}

/* ==================== 中央播放按钮 ==================== */
.center-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    width: 80px;
    height: 80px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 5;
    border: 1px solid rgba(255,255,255,0.1);
}

.player-container.paused .center-play {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.center-play:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background: rgba(0,0,0,0.8);
}

.center-play svg {
    width: 32px;
    height: 32px;
    fill: #fff;
    margin-left: 4px;
}

/* ==================== 加载动画 ==================== */
.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255,255,255,0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;
    z-index: 5;
}

.player-container.loading .loading-spinner {
    display: block;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ==================== 错误提示 ==================== */
.error-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 59, 48, 0.9);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    color: #fff;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    display: none;
    align-items: center;
    gap: 12px;
    z-index: 20;
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow-md);
}

.error-message.show {
    display: flex;
}

.error-message svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* ==================== 快捷键提示 ==================== */
.shortcut-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.8);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    color: #fff;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 20;
    pointer-events: none;
    letter-spacing: -0.01em;
}

.shortcut-hint.show {
    opacity: 1;
}

/* ==================== 底部控制栏 ==================== */
.controls-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 20px 20px;
    background: linear-gradient(0deg, rgba(0,0,0,0.9) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 10;
    pointer-events: none;
}

.player-container:hover .controls-bar,
.player-container.controls-visible .controls-bar,
.player-container.paused .controls-bar {
    opacity: 1;
}

.controls-bar > * {
    pointer-events: auto;
}

/* 进度条 */
.progress-container {
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    cursor: pointer;
    margin-bottom: 12px;
    position: relative;
    transition: height var(--transition-fast);
    overflow: visible;
}

.progress-container:hover {
    height: 6px;
}

.progress-bar {
    height: 100%;
    background: #fff;
    border-radius: 2px;
    width: 0%;
    position: relative;
    transition: width 0.1s linear;
}

.progress-bar::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%) scale(0);
    width: 12px;
    height: 12px;
    background: #fff;
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.progress-container:hover .progress-bar::after {
    transform: translateY(-50%) scale(1);
}

.buffer-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    width: 0%;
    pointer-events: none;
}

.progress-tooltip {
    position: absolute;
    top: -40px;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.9);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    color: #fff;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--transition-fast);
    pointer-events: none;
    white-space: nowrap;
}

.progress-tooltip.show {
    opacity: 1;
}

/* 控制按钮行 */
.controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.controls-left,
.controls-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 控制按钮 */
.control-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    min-width: 36px;
    min-height: 36px;
    position: relative;
}

.control-btn:hover {
    background: rgba(255,255,255,0.15);
    transform: scale(1.05);
}

.control-btn:active {
    transform: scale(0.95);
}

.control-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* 播放按钮特殊样式 */
.play-btn {
    background: rgba(255,255,255,0.1);
}

.play-btn:hover {
    background: rgba(255,255,255,0.2);
}

/* 时间显示 */
.time-display {
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    min-width: 120px;
    text-align: center;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.live-indicator {
    color: var(--danger-color);
    font-size: 11px;
    font-weight: 600;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 音量滑块 */
.volume-container {
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
}

.volume-slider {
    width: 0;
    height: 4px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    cursor: pointer;
    transition: width var(--transition-normal);
    overflow: hidden;
}

.volume-container:hover .volume-slider {
    width: 80px;
}

.volume-level {
    height: 100%;
    background: #fff;
    border-radius: 2px;
    width: 100%;
    transition: width var(--transition-fast);
}

/* 下拉选择器 */
.dropdown-selector {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    bottom: 100%;
    right: 0;
    background: var(--control-bg);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-radius: var(--radius-md);
    padding: 6px;
    margin-bottom: 8px;
    display: none;
    flex-direction: column;
    gap: 2px;
    min-width: 100px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255,255,255,0.1);
    z-index: 100;
}

.dropdown-menu.show {
    display: flex;
}

.dropdown-menu.source-menu {
    min-width: 150px;
    max-height: 250px;
    overflow-y: auto;
}

.dropdown-option {
    padding: 10px 16px;
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    white-space: nowrap;
}

.dropdown-option:hover {
    background: rgba(255,255,255,0.15);
}

.dropdown-option.active {
    background: rgba(255,255,255,0.25);
    color: var(--accent-color);
}

.speed-btn {
    font-size: 13px;
    font-weight: 600;
    min-width: 50px;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    #app {
        padding: 0;
    }
    
    .player-container {
        border-radius: 0;
        aspect-ratio: 16/9;
    }
    
    .video-title {
        font-size: 14px;
        max-width: 60%;
    }
    
    .control-btn {
        min-width: 32px;
        min-height: 32px;
        padding: 6px;
    }
    
    .control-btn svg {
        width: 18px;
        height: 18px;
    }
    
    .time-display {
        font-size: 12px;
        min-width: 90px;
    }
    
    .volume-container:hover .volume-slider {
        width: 60px;
    }
    
    .center-play {
        width: 60px;
        height: 60px;
    }
    
    .center-play svg {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 480px) {
    .controls-row {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .controls-left,
    .controls-right {
        width: 100%;
        justify-content: center;
    }
    
    .controls-left {
        margin-bottom: 8px;
    }
}

/* ==================== 深色/浅色主题 ==================== */
[data-theme="light"] {
    --bg-color: #F5F5F7;
    --control-bg: rgba(255, 255, 255, 0.95);
    --text-color: #1D1D1F;
}

[data-theme="light"] .player-container {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .top-bar {
    background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, transparent 100%);
}

[data-theme="light"] .video-title {
    color: #1D1D1F;
    text-shadow: none;
}

[data-theme="light"] .controls-bar {
    background: linear-gradient(0deg, rgba(255,255,255,0.95) 0%, transparent 100%);
}

/* ==================== 滚动条样式 ==================== */
.dropdown-menu::-webkit-scrollbar {
    width: 6px;
}

.dropdown-menu::-webkit-scrollbar-track {
    background: transparent;
}

.dropdown-menu::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
}

.dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.5);
}