/* 微习惯 - 自定义样式 */

/* 全局样式 */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 0.375rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f8f9fa;
}

/* 导航栏样式 */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
}

/* 主要内容区域 */
.main-content {
    min-height: calc(100vh - 200px);
    padding-top: 0;
}

/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="1" fill="white" opacity="0.1"/><circle cx="10" cy="90" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.1;
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: rgba(0, 0, 0, 0.02);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-weight: 600;
}

/* 按钮样式 */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6fd8, #6a4190);
}

/* 表单样式 */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #e0e0e0;
    transition: all 0.2s ease-in-out;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* 徽章样式 */
.badge {
    border-radius: var(--border-radius);
    font-weight: 500;
}

/* 列表组样式 */
.list-group-item {
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: background-color 0.2s ease-in-out;
}

.list-group-item:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

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

/* 警告框样式 */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.alert-success {
    border-left-color: var(--success-color);
    background-color: rgba(40, 167, 69, 0.1);
    color: #155724;
}

.alert-danger {
    border-left-color: var(--danger-color);
    background-color: rgba(220, 53, 69, 0.1);
    color: #721c24;
}

.alert-warning {
    border-left-color: var(--warning-color);
    background-color: rgba(255, 193, 7, 0.1);
    color: #856404;
}

.alert-info {
    border-left-color: var(--info-color);
    background-color: rgba(23, 162, 184, 0.1);
    color: #0c5460;
}

/* 功能图标样式 */
.feature-icon {
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

/* 习惯颜色指示器 */
.habit-color {
    border-radius: 50%;
    flex-shrink: 0;
}

/* 时间线样式 */
.timeline {
    position: relative;
}

.timeline-item {
    position: relative;
    padding-bottom: 1rem;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 24px;
    bottom: -8px;
    width: 1px;
    background-color: #e0e0e0;
}

/* 统计卡片渐变背景 */
.bg-gradient {
    background-image: linear-gradient(45deg, rgba(255,255,255,0.1) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.1) 75%, transparent 75%, transparent);
    background-size: 1rem 1rem;
}

/* 下拉菜单样式 */
.dropdown-menu {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    border-radius: var(--border-radius);
}

.dropdown-item {
    transition: background-color 0.2s ease-in-out;
}

.dropdown-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* 页脚样式 */
footer {
    margin-top: auto;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .feature-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}

/* 加载状态 */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

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

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

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* 打印样式 */
@media print {
    .navbar,
    .btn,
    footer {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* 无障碍支持 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 焦点样式 */
.btn:focus,
.form-control:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --bs-body-bg: #212529;
        --bs-body-color: #fff;
    }
    
    body {
        background-color: #212529;
        color: #fff;
    }
    
    .card {
        background-color: #343a40;
        color: #fff;
    }
    
    .form-control {
        background-color: #495057;
        border-color: #6c757d;
        color: #fff;
    }
}