/* ============================================
   VideoChat 样式表
   ============================================ */

/* 重置和基础 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #22c55e;
    --warning: #f59e0b;
    --bg-dark: #0f172a;
    --bg-panel: #1e293b;
    --bg-card: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #475569;
    --radius: 8px;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--bg-card);
    color: var(--text-secondary);
}

.status-badge.live {
    background: var(--danger);
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.username {
    color: var(--text-secondary);
    font-size: 14px;
}

.online-count {
    color: var(--success);
    font-size: 14px;
    font-weight: 600;
}

/* ============================================
   按钮
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }

.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover:not(:disabled) { background: var(--danger-hover); }

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.btn-outline:hover { background: var(--bg-card); color: var(--text-primary); }

.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }

/* ============================================
   登录页面
   ============================================ */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h1 {
    font-size: 28px;
    margin-bottom: 8px;
}

.auth-header p {
    color: var(--text-secondary);
}

.auth-form {
    background: var(--bg-panel);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.auth-form h2 {
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.2s;
}

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

.form-error {
    color: var(--danger);
    font-size: 13px;
    min-height: 20px;
    margin-bottom: 8px;
}

.auth-form .btn {
    width: 100%;
    margin-top: 8px;
}

.auth-switch {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--primary);
    text-decoration: none;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 13px;
}

.auth-footer code {
    background: var(--bg-card);
    padding: 2px 6px;
    border-radius: 4px;
}

/* ============================================
   主播页面布局
   ============================================ */
.host-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 0;
    height: calc(100vh - 57px);
}

.video-section {
    display: flex;
    flex-direction: column;
    background: #000;
}

.video-container {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.8);
    color: var(--text-secondary);
    font-size: 18px;
}

.video-overlay img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay .overlay-content {
    text-align: center;
}

.video-overlay .overlay-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.video-controls {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--bg-panel);
    justify-content: center;
}

.control-section {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    border-left: 1px solid var(--border);
}

/* ============================================
   游客页面布局
   ============================================ */
.viewer-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 0;
    height: calc(100vh - 57px);
}

.chat-section {
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--border);
    background: var(--bg-panel);
}

.stream-info {
    display: flex;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-panel);
    font-size: 14px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
}

/* ============================================
   面板
   ============================================ */
.panel {
    border-bottom: 1px solid var(--border);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-card);
}

.panel-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.panel-body {
    padding: 12px 16px;
    max-height: 200px;
    overflow-y: auto;
}

.badge {
    background: var(--danger);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
}

/* ============================================
   控制面板
   ============================================ */
.control-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.control-row label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ============================================
   发言请求列表
   ============================================ */
.request-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.request-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-dark);
    border-radius: var(--radius);
}

.request-item .request-user {
    font-size: 14px;
    font-weight: 500;
}

.request-item .request-time {
    font-size: 11px;
    color: var(--text-secondary);
}

.request-actions {
    display: flex;
    gap: 6px;
}

.empty-text {
    color: var(--text-secondary);
    font-size: 13px;
    text-align: center;
    padding: 8px;
}

/* ============================================
   在线用户列表
   ============================================ */
.user-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px;
    background: var(--bg-dark);
    border-radius: var(--radius);
    font-size: 13px;
}

.user-item .user-name {
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-item .user-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
}

.user-item .user-actions {
    display: flex;
    gap: 4px;
}

.muted-badge {
    background: var(--danger);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
}

/* ============================================
   聊天
   ============================================ */
.chat-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-bottom: none;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 200px;
    max-height: none;
}

.chat-message {
    padding: 8px 12px;
    border-radius: var(--radius);
    background: var(--bg-dark);
    font-size: 13px;
    word-break: break-word;
}

.chat-message .msg-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
}

.chat-message .msg-user {
    font-weight: 600;
    color: var(--primary);
}

.chat-message .msg-user.host {
    color: var(--danger);
}

.chat-message .msg-user.system {
    color: var(--warning);
}

.chat-message .msg-time {
    font-size: 11px;
    color: var(--text-secondary);
}

.chat-message .msg-text {
    color: var(--text-primary);
}

.chat-message.system-msg {
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--warning);
}

/* ============================================
   游客聊天输入
   ============================================ */
.speak-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.speak-status span {
    font-size: 13px;
    color: var(--text-secondary);
}

.chat-input-area {
    padding: 12px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border);
}

.chat-input-row {
    display: flex;
    gap: 8px;
}

.chat-input-row input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
}

.chat-input-row input:focus {
    outline: none;
    border-color: var(--primary);
}

.chat-input-row input:disabled {
    opacity: 0.5;
}

.chat-hint {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.text-warning { color: var(--warning); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

/* ============================================
   滚动条
   ============================================ */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ============================================
   历史记录
   ============================================ */
.history-list {
    max-height: 300px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    border-radius: 6px;
    background: var(--bg-secondary);
    margin-bottom: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.history-item:hover {
    background: var(--bg-tertiary);
}

.history-info {
    flex: 1;
}

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

.history-count {
    font-size: 12px;
    color: var(--accent);
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 10px;
}

/* 弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    margin: 0;
    font-size: 16px;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 900px) {
    .host-layout,
    .viewer-layout {
        grid-template-columns: 1fr;
        grid-template-rows: 50vh 1fr;
        height: auto;
    }

    .control-section,
    .chat-section {
        border-left: none;
        border-top: 1px solid var(--border);
    }
}