/**
 * 云会议系统 - 样式文件
 * 简约风格
 */

:root {
    --primary: #4A90D9;
    --primary-dark: #357ABD;
    --primary-light: #6BA3E0;
    --success: #28A745;
    --danger: #DC3545;
    --warning: #FFC107;
    --info: #17A2B8;
    --light: #F8F9FA;
    --dark: #343A40;
    --gray: #6C757D;
    --gray-light: #E9ECEF;
    --white: #FFFFFF;
    --border: #DEE2E6;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
}

/* 通用样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    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);
    box-shadow: var(--shadow);
}

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

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

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

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

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

.btn-block {
    display: block;
    width: 100%;
}

/* 表单样式 */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

/* 卡片样式 */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* 导航栏 */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
}

.navbar-brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    gap: 8px;
}

.nav-item {
    padding: 8px 16px;
    border-radius: var(--radius);
    color: var(--gray);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.nav-item:hover,
.nav-item.active {
    background: var(--light);
    color: var(--primary);
}

/* 底部导航 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 -2px 8px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
    z-index: 100;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 16px;
    color: var(--gray);
    text-decoration: none;
    font-size: 12px;
    transition: color 0.2s;
}

.bottom-nav-item:hover,
.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-item svg {
    width: 24px;
    height: 24px;
    margin-bottom: 4px;
}

/* 页面内容 */
.page-content {
    padding: 20px;
    padding-bottom: 80px;
}

/* 欢迎卡片 */
.welcome-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}

.welcome-card h2 {
    font-size: 24px;
    margin-bottom: 8px;
}

.welcome-card p {
    opacity: 0.9;
    font-size: 14px;
}

/* 快捷操作 */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.quick-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.2s;
}

.quick-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.quick-action-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.quick-action-icon svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

.quick-action span {
    font-size: 12px;
    color: var(--gray);
}

/* 会议列表 */
.meeting-list {
    margin-top: 20px;
}

.meeting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 12px;
    box-shadow: var(--shadow);
}

.meeting-info h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.meeting-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--gray);
}

.meeting-status {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.meeting-status.active {
    background: #D4EDDA;
    color: var(--success);
}

.meeting-status.ended {
    background: var(--gray-light);
    color: var(--gray);
}

/* 登录页面 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo h1 {
    font-size: 28px;
    color: var(--primary);
    margin-top: 12px;
}

.login-logo p {
    color: var(--gray);
    font-size: 14px;
}

/* 会议页面 */
.meeting-page {
    min-height: 100vh;
    background: #1a1a2e;
    color: var(--white);
}

.meeting-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: rgba(0,0,0,0.3);
}

.meeting-title {
    font-size: 16px;
}

.meeting-code {
    font-size: 12px;
    opacity: 0.8;
}

/* 视频区域 */
.video-container {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px;
    align-items: center;
    justify-content: center;
}

.video-item {
    position: relative;
    background: #2d2d44;
    border-radius: var(--radius);
    overflow: hidden;
    min-width: 200px;
    min-height: 150px;
}

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

.video-label {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: rgba(0,0,0,0.6);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.screen-share {
    width: 100%;
    max-width: 800px;
}

/* 底部控制栏 */
.meeting-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 16px;
    background: rgba(0,0,0,0.3);
}

.control-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    background: rgba(255,255,255,0.1);
    color: var(--white);
}

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

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

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

.control-btn svg {
    width: 24px;
    height: 24px;
}

/* 聊天面板 */
.chat-panel {
    position: fixed;
    right: 0;
    top: 0;
    bottom: 0;
    width: 300px;
    background: var(--white);
    box-shadow: -2px 0 8px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s;
    z-index: 200;
}

.chat-panel.open {
    transform: translateX(0);
}

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

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.chat-message {
    margin-bottom: 12px;
}

.chat-message .sender {
    font-size: 12px;
    color: var(--gray);
    margin-bottom: 4px;
}

.chat-message .content {
    background: var(--light);
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 14px;
}

.chat-input {
    display: flex;
    gap: 8px;
    padding: 16px;
    border-top: 1px solid var(--border);
}

.chat-input input {
    flex: 1;
}

/* 成员列表 */
.member-list {
    padding: 16px;
}

.member-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.member-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.member-info {
    flex: 1;
}

.member-name {
    font-size: 14px;
    font-weight: 500;
}

.member-role {
    font-size: 12px;
    color: var(--gray);
}

/* 个人中心 */
.profile-header {
    text-align: center;
    padding: 32px 20px;
    background: var(--white);
    margin-bottom: 16px;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 600;
    margin: 0 auto 16px;
}

.profile-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.profile-role {
    font-size: 14px;
    color: var(--gray);
}

/* 设置列表 */
.settings-list {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
}

.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.2s;
}

.settings-item:hover {
    background: var(--light);
}

.settings-item:last-child {
    border-bottom: none;
}

.settings-item-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.settings-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.settings-icon svg {
    width: 20px;
    height: 20px;
    color: var(--white);
}

.settings-item span {
    font-size: 14px;
}

.settings-item .arrow {
    color: var(--gray);
}

/* 响应式 */
@media (max-width: 768px) {
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .meeting-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .chat-panel {
        width: 100%;
    }
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* 提示框 */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    background: var(--dark);
    color: var(--white);
    border-radius: var(--radius);
    font-size: 14px;
    z-index: 1000;
    animation: fadeIn 0.3s;
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--danger);
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
}

.modal {
    background: var(--white);
    border-radius: var(--radius);
    width: 100%;
    max-width: 400px;
    padding: 24px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray);
}

/* 表格 */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    background: var(--light);
    font-weight: 600;
    font-size: 14px;
}

.table td {
    font-size: 14px;
}

/* 工具类 */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.hidden { display: none; }