/* 多用户版本样式 */
/* multiuser.css */

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    background-color: #f8f9fa;
    color: #212529;
    margin: 0;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    color: #343a40;
    margin-top: 0;
    margin-bottom: 1rem;
}

h1, h2 {
    border-bottom: 2px solid #dee2e6;
    padding-bottom: 10px;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 25px;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #495057;
}

tr:hover {
    background-color: #f5f5f5;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    border: 1px solid transparent;
    border-radius: 0.375rem;
    transition: all 0.15s ease-in-out;
}

.btn-primary {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

.btn-danger {
    color: #fff;
    background-color: #dc3545;
    border-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
}

.btn-success {
    color: #fff;
    background-color: #28a745;
    border-color: #28a745;
}

.btn-success:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

.btn-warning {
    color: #212529;
    background-color: #ffc107;
    border-color: #ffc107;
}

.btn-warning:hover {
    background-color: #e0a800;
    border-color: #d39e00;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #495057;
}

input, select, textarea {
    display: block;
    width: 100%;
    padding: 0.5rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.375rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Flash消息样式 */
.flash {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flash-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.flash-error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.flash-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.flash-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.flash-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.5;
}

.flash-close:hover {
    opacity: 1;
}

/* 多用户版本的特殊样式 */

/* 多用户版本容器样式（覆盖基础样式） */
.container {
    max-width: none;
    margin: 0;
    padding: 2rem;
    background-color: #f8f9fa;
    border-radius: 0;
    box-shadow: none;
    min-height: calc(100vh - 80px);
}

/* 导航栏样式 */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links > a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.nav-links > a:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

/* 导航栏下拉菜单触发器样式 */
.nav-links .dropdown > .dropdown-toggle {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: block;
}

.nav-links .dropdown > .dropdown-toggle:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

.nav-user {
    position: relative;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.user-info:hover {
    background: rgba(255,255,255,0.1);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    padding: 0.5rem 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1001;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.25rem;
    color: #2c3e50;
    text-decoration: none;
    transition: background 0.2s ease;
}

.dropdown-menu a:hover {
    background: #f8f9fa;
}

/* Flash 消息样式 */
.flash {
    position: relative;
    padding: 1rem 1.5rem;
    margin: 1rem 0;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideInDown 0.3s ease;
}

.flash-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.flash-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.flash-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.flash-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.flash-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: currentColor;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.flash-close:hover {
    opacity: 1;
}

/* 按钮样式增强 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
    transform: translateY(-1px);
}

.btn-google {
    background: #4285F4;
    color: white;
    border: none;
}

.btn-google:hover {
    background: #357ae8;
}

/* 容器和卡片样式 */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.05);
}

.card-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #f0f0f0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.card-body {
    padding: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .container {
        margin: 1rem auto;
        padding: 0 0.5rem;
    }
    
    .dropdown-menu {
        position: fixed;
        top: auto;
        right: 1rem;
        left: 1rem;
        width: auto;
    }
}

/* 动画 */
@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 页面加载动画 */
.container > * {
    animation: slideInUp 0.4s ease;
}

/* 表格样式增强 */
.table-responsive {
    overflow-x: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.table {
    width: 100%;
    background: white;
    border-collapse: collapse;
    margin: 0;
}

.table th {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 1rem 1.5rem;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
}

.table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #f0f0f0;
    vertical-align: middle;
}

.table tbody tr:hover {
    background: #f8f9fa;
}

/* 工具提示 */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #2c3e50;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

/* 加载指示器 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 状态徽章 */
.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 0.75em;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.375rem;
}

.badge-success { background-color: #28a745; color: white; }
.badge-danger { background-color: #dc3545; color: white; }
.badge-warning { background-color: #ffc107; color: #212529; }
.badge-info { background-color: #17a2b8; color: white; }
.badge-secondary { background-color: #6c757d; color: white; }

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 2rem 0;
}

.pagination a,
.pagination span {
    padding: 0.5rem 1rem;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    text-decoration: none;
    color: #495057;
    transition: all 0.2s ease;
}

.pagination a:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.pagination .active {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

/* 进度条 */
.progress {
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

/* 模态框基础样式 */
.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: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.2s ease;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

/* 用户管理页面样式 */
.user-management {
    margin: 2rem 0;
}

.user-search {
    margin-bottom: 2rem;
}

.user-search input[type="text"] {
    width: 100%;
    max-width: 400px;
    padding: 0.75rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.user-search input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.user-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.user-item {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.2s ease;
}

.user-item:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.user-item h3 {
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
    font-size: 1.1rem;
}

.user-item p {
    margin: 0.25rem 0;
    color: #6c757d;
    font-size: 0.9rem;
}

.user-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.user-actions .btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* 系统设置页面样式 */
.settings-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #495057;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .user-list {
        grid-template-columns: 1fr;
    }
    
    .user-search input[type="text"] {
        max-width: 100%;
    }
    
    .user-actions {
        justify-content: center;
    }
    
    .settings-form {
        margin: 0;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .user-item {
        padding: 1rem;
    }
    
    .user-actions .btn {
        flex: 1;
        min-width: 80px;
    }
}

/* 邮箱更换功能样式 */
.email-change-section {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1rem 0;
    transition: all 0.3s ease;
}

.email-change-section:hover {
    border-color: #007bff;
    box-shadow: 0 2px 8px rgba(0,123,255,0.1);
}

.current-email {
    background: #e9ecef;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.95rem;
    color: #495057;
    margin-bottom: 1rem;
}

.email-input-group {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    margin-bottom: 1rem;
}

.email-input-group .form-group {
    flex: 1;
    margin-bottom: 0;
}

.verification-group {
    display: none;
    margin-top: 1rem;
    padding: 1rem;
    background: #e8f4f8;
    border: 1px solid #b8daff;
    border-radius: 6px;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.verification-group.show {
    opacity: 1;
    transform: translateY(0);
}

.verification-group .form-group {
    margin-bottom: 1rem;
}

.verification-group .form-group:last-child {
    margin-bottom: 0;
}

.verification-notice {
    color: #0c5460;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: #d1ecf1;
    border-radius: 4px;
}

.btn-verify {
    background: linear-gradient(135deg, #28a745, #20c997);
    border: none;
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: none;
}

.btn-verify:hover {
    background: linear-gradient(135deg, #218838, #1ea987);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.btn-verify:disabled {
    background: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-send-code {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border: none;
    color: white;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-send-code:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-send-code:disabled {
    background: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 验证码输入框样式 */
input[type="text"]#verification_code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 1.1rem;
    letter-spacing: 0.2rem;
    text-align: center;
    max-width: 150px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .email-input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .email-input-group .form-group {
        margin-bottom: 1rem;
    }
    
    .btn-send-code {
        width: 100%;
        margin-top: 0.5rem;
    }
    
    .verification-group {
        padding: 0.75rem;
    }
}