/**
 * common-styles.css - 统一的样式和颜色主题
 * 为所有页面提供一致的视觉体验
 */

/* ========== 颜色主题变量 ========== */
:root {
    /* 主色调 - Iceberg 深蓝色 */
    --primary-color: #0077B6;
    --primary-hover: #00B4D8;
    --primary-light: #90E0EF;
    --primary-dark: #03045E;
    
    /* 辅助色 */
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    
    /* 成功色 */
    --success-color: #28a745;
    --success-hover: #218838;
    
    /* 警告色 */
    --warning-color: #ffc107;
    --warning-hover: #e0a800;
    
    /* 危险色 */
    --danger-color: #dc3545;
    --danger-hover: #c82333;
    
    /* 信息色 */
    --info-color: #17a2b8;
    --info-hover: #138496;
    
    /* 背景色 */
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --bg-dark: #343a40;
    
    /* 文字颜色 */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-light: #cccccc;
    
    /* 边框颜色 */
    --border-color: #e0e0e0;
    --border-light: #f0f0f0;
    --border-dark: #d0d0d0;
    
    /* 阴影 */
    --shadow-sm: 0 0 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 0 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 15px 35px rgba(0, 0, 0, 0.2);
    
    /* 字体大小 */
    --font-size-base: 10px;
    --font-size-title: 14px;
    --font-size-heading: 18px;
    --font-size-large: 24px;
}

/* ========== 全局字体设置 ========== */
* {
    font-family: 'Hiragino Sans', sans-serif !important;
    font-size: var(--font-size-base);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

h1, h2, h3, h4, h5, h6 {
    font-size: var(--font-size-title) !important;
    font-weight: bold !important;
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-large) !important; }
h2 { font-size: var(--font-size-heading) !important; }

/* ========== 通用容器样式 ========== */
.page-container {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    max-width: 450px;
    width: 100%;
    margin: 0 auto;
}

.page-container-large {
    max-width: 800px;
}

/* ========== 表单样式 ========== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    color: var(--text-primary);
    font-size: var(--font-size-title);
    font-weight: bold;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-white);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: border-color 0.3s;
}

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

/* ========== 按钮样式 ========== */
.btn-custom {
    padding: 14px 30px;
    border: none;
    border-radius: 4px;
    font-size: var(--font-size-title);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

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

.btn-secondary-custom {
    background-color: var(--secondary-color);
    color: var(--bg-white);
}

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

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

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

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

/* ========== 语言切换按钮 ========== */
.language-switch {
    position: absolute;
    top: 20px;
    right: 20px;
    cursor: pointer;
    color: var(--primary-color);
    font-size: var(--font-size-base);
    font-weight: bold;
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all 0.3s;
}

.language-switch:hover {
    background: var(--bg-white);
    border-color: var(--primary-color);
    text-decoration: none;
}

/* ========== 链接样式 ========== */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.link-muted {
    color: var(--text-secondary);
}

.link-muted:hover {
    color: var(--primary-color);
}

/* ========== 标题样式 ========== */
.page-title {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 30px;
    font-size: var(--font-size-title);
    font-weight: bold;
}

/* ========== 卡片样式 ========== */
.card-custom {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.card-custom:hover {
    box-shadow: var(--shadow-md);
}

/* ========== 提示消息样式 ========== */
.message {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 15px;
    font-size: var(--font-size-base);
    text-align: center;
}

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

.message-error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    animation: fadeIn 0.3s ease-in;
}

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

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

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

/* ========== 导航链接样式 ========== */
.nav-links {
    text-align: center;
    margin-top: 20px;
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.nav-links a {
    color: var(--primary-color);
    font-weight: bold;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .page-container {
        padding: 30px 20px;
    }
    
    .language-switch {
        top: 10px;
        right: 10px;
        font-size: 9px;
        padding: 6px 12px;
    }
}

/* ========== AI 工具卡片统一样式 ========== */
.ai-tool-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
}

.ai-tool-card:hover {
    border-color: #0077B6;
    box-shadow: 0 4px 12px rgba(0, 119, 182, 0.15);
    transform: translateY(-2px);
}

.ai-tool-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.ai-tool-card h5 {
    color: var(--text-primary);
    font-size: var(--font-size-heading);
    font-weight: 600;
    margin-bottom: 10px;
}

.ai-tool-card p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.ai-tool-card button {
    font-weight: 600;
    padding: 12px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.ai-tool-card button:hover:not(:disabled) {
    transform: scale(1.05);
}

.ai-tool-card button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ========== 统一的渐变背景 ========== */
:root {
    --gradient-primary: linear-gradient(135deg, #0077B6 0%, #00B4D8 100%);
    --gradient-light: linear-gradient(180deg, #E3F2FD 0%, #90CAF9 30%, #42A5F5 60%, #1E88E5 100%);
}

body.auth-page {
    background: var(--gradient-light);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

body.welcome-page {
    background: var(--gradient-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

body.dashboard-page {
    background: var(--gradient-light);
    font-family: 'Hiragino Sans', sans-serif;
}

/* ========== Toast 通知样式 ========== */
.toast-custom {
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

/* ========== 加载动画 ========== */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ========== 统一的卡片阴影 ========== */
.card,
.card-custom,
.page-container,
.ai-tool-card {
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease;
}

.card:hover,
.card-custom:hover,
.ai-tool-card:hover {
    box-shadow: var(--shadow-md);
}

/* ========== 模态框统一样式 ========== */
.modal-content {
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    border: none;
}

.modal-header {
    border-radius: 15px 15px 0 0;
    padding: 20px 30px;
    border-bottom: 2px solid rgba(0,0,0,0.1);
}

.modal-header.bg-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%) !important;
}

.modal-header.bg-info {
    background: linear-gradient(135deg, #00B4D8 0%, #90E0EF 100%) !important;
}

.modal-header.bg-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%) !important;
}

.modal-body {
    padding: 30px;
    background-color: #fafbfc;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 2px solid rgba(0,0,0,0.1);
    background-color: #f8f9fa;
    border-radius: 0 0 15px 15px;
}

/* ========== 表格统一样式 ========== */
.table-hover tbody tr:hover {
    background-color: rgba(0, 119, 182, 0.05);
    cursor: pointer;
}

.table thead {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.table-bordered {
    border-color: var(--border-color);
}

/* ========== Badge 统一样式 ========== */
.badge {
    padding: 6px 12px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 10px;
}

.badge.bg-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%) !important;
}

.badge.bg-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%) !important;
}

.badge.bg-info {
    background: linear-gradient(135deg, #00B4D8 0%, #90E0EF 100%) !important;
}

.badge.bg-warning {
    background: linear-gradient(135deg, #ffc107 0%, #ffb300 100%) !important;
}

.badge.bg-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%) !important;
}

/* ========== 进度条统一样式 ========== */
.progress {
    height: 25px;
    border-radius: 12px;
    background-color: #e9ecef;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.progress-bar {
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.progress-bar.bg-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%) !important;
}

.progress-bar.bg-info {
    background: linear-gradient(135deg, #00B4D8 0%, #90E0EF 100%) !important;
}

/* ========== Alert 统一样式 ========== */
.alert {
    border-radius: 12px;
    border: none;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}