/**
 * WebCast 样式文件
 */

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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部 */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav {
    display: flex;
    gap: 8px;
    background: var(--bg-color);
    padding: 4px;
    border-radius: 8px;
}

.nav-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

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

.nav-btn.active {
    background: var(--card-bg);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

/* 主内容区 */
.main {
    flex: 1;
    padding: 40px 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

.mode-section {
    display: none;
}

.mode-section.active {
    display: block;
}

/* 卡片 */
.card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-md);
}

.card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    text-align: center;
}

.subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 32px;
}

/* 投屏码 */
.cast-code-container {
    text-align: center;
    margin-bottom: 32px;
}

.cast-code-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.cast-code {
    font-size: 48px;
    font-weight: 700;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    letter-spacing: 8px;
    color: var(--primary-color);
    padding: 20px;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border-radius: 12px;
    margin-bottom: 24px;
    user-select: all;
}

.qrcode-container {
    display: inline-block;
}

#qrcode {
    display: inline-block;
    padding: 16px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 8px;
}

#qrcode img, #qrcode canvas {
    display: block;
}

.qrcode-tip {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 使用说明 */
.instructions {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 12px;
}

.instructions h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
}

.instructions ol {
    padding-left: 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

.instructions li {
    margin-bottom: 8px;
}

/* 表单 */
.input-group, .device-name-group {
    margin-bottom: 20px;
}

.input-group label, .device-name-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.input-group input, .device-name-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    text-align: center;
    letter-spacing: 4px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    transition: border-color 0.2s;
}

.device-name-group input {
    text-align: left;
    letter-spacing: normal;
    font-family: inherit;
}

.input-group input:focus, .device-name-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.cast-options {
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

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

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-large {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
}

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

/* 错误提示 */
.error-message {
    margin-top: 16px;
    padding: 12px 16px;
    background: #fef2f2;
    color: var(--danger-color);
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
}

/* 连接中状态 */
.connecting-status {
    text-align: center;
    padding: 40px 20px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.connecting-status p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* 来电请求 */
.incoming-call {
    text-align: center;
}

.incoming-call h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.incoming-call p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.incoming-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.incoming-actions .btn {
    min-width: 120px;
}

/* 视频容器 */
.video-container {
    position: relative;
    background: #000;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

#remoteVideo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
}

.cast-toolbar {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    padding: 8px 12px;
    border-radius: 50px;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-container:hover .cast-toolbar {
    opacity: 1;
}

.tool-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: white;
    border-radius: 50px;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 14px;
}

.tool-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-disconnect {
    background: var(--danger-color);
    margin-left: 8px;
}

.btn-disconnect:hover {
    background: #dc2626;
}

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

.volume-control input[type="range"] {
    width: 80px;
    accent-color: white;
}

.connection-status {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.6);
    padding: 8px 14px;
    border-radius: 50px;
    color: white;
    font-size: 13px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

/* 旋转 */
.video-container.rotate-90 #remoteVideo {
    transform: rotate(90deg);
}
.video-container.rotate-180 #remoteVideo {
    transform: rotate(180deg);
}
.video-container.rotate-270 #remoteVideo {
    transform: rotate(270deg);
}

/* 全屏 */
.video-container:fullscreen {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    aspect-ratio: auto;
}

/* 投屏中状态 */
.casting-info {
    text-align: center;
}

.casting-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.status-indicator {
    width: 12px;
    height: 12px;
    background: var(--border-color);
    border-radius: 50%;
}

.status-indicator.active {
    background: var(--success-color);
    animation: pulse 2s infinite;
}

.casting-info h3 {
    font-size: 20px;
    font-weight: 600;
}

.casting-info > p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.local-preview {
    width: 100%;
    max-width: 400px;
    margin: 0 auto 24px;
    border-radius: 12px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 16 / 9;
}

.local-preview video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--text-secondary);
    font-size: 13px;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
}

/* Toast提示 */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--text-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* 响应式 */
@media (max-width: 640px) {
    .main {
        padding: 20px 16px;
    }
    
    .card {
        padding: 24px 20px;
    }
    
    .cast-code {
        font-size: 32px;
        letter-spacing: 4px;
        padding: 16px;
    }
    
    .nav-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .logo span {
        display: none;
    }
    
    .cast-toolbar {
        bottom: 10px;
        padding: 6px 8px;
    }
    
    .tool-btn {
        padding: 8px 10px;
    }
    
    .btn-disconnect span {
        display: none;
    }
    
    .volume-control input[type="range"] {
        width: 60px;
    }
}