:root {
    --django-green: #0C4B33;
    --django-light-green: #44B78B;
    --django-dark-green: #082E20;
    --advanced-blue: #007bff;
    --advanced-purple: #6f42c1;
    --advanced-orange: #fd7e14;
    --advanced-teal: #20c997;
}

.bg-django {
    background-color: var(--django-green) !important;
}

.text-django {
    color: var(--django-green) !important;
}

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

.btn-django:hover {
    background-color: var(--django-dark-green);
    color: white;
}

.hero-section {
    background: linear-gradient(135deg, var(--django-green) 0%, var(--django-light-green) 100%);
    color: white;
    padding: 3rem 0;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: var(--django-light-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.card-hover {
    transition: transform 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
}

.code-block {
    background-color: #f8f9fa;
    border-radius: 5px;
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
}

.chapter-title {
    border-bottom: 2px solid var(--django-green);
    padding-bottom: 10px;
    margin-bottom: 30px;
}

.navbar-brand img {
    filter: brightness(0) invert(1);
}

.template-example {
    border: 1px solid #dee2e6;
    border-radius: 5px;
    margin: 20px 0;
}

.template-example .example-header {
    background-color: #e9ecef;
    padding: 10px 15px;
    border-bottom: 1px solid #dee2e6;
    font-weight: bold;
}

.template-example .example-content {
    padding: 15px;
}

.template-diagram {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    text-align: center;
}

.template-diagram .diagram-item {
    display: inline-block;
    margin: 10px;
    padding: 15px;
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    min-width: 150px;
}

.template-diagram .arrow {
    font-size: 24px;
    color: var(--django-green);
    margin: 0 10px;
}

.badge-django {
    background-color: var(--django-green);
    color: white;
}

/* 进阶主题特定样式 */
.advanced-level {
    padding: 8px 12px;
    border-radius: 4px;
    font-weight: bold;
    margin-right: 10px;
}

.level-rest { background-color: var(--advanced-blue); color: white; }
.level-async { background-color: var(--advanced-purple); color: white; }
.level-third-party { background-color: var(--advanced-orange); color: white; }
.level-advanced { background-color: var(--advanced-teal); color: white; }

.architecture-flow {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    text-align: center;
}

.flow-step {
    margin: 15px 0;
    padding: 15px;
    border-radius: 5px;
    background-color: white;
    position: relative;
}

.flow-step::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 15px solid white;
}

.flow-step:first-child::before {
    display: none;
}

.advanced-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-right: 5px;
    background-color: #6c757d;
    color: white;
}

.badge-drf { background-color: var(--advanced-blue); }
.badge-async { background-color: var(--advanced-purple); }
.badge-channels { background-color: var(--advanced-orange); }
.badge-celery { background-color: var(--advanced-teal); }
.badge-cache { background-color: #6f42c1; }
.badge-auth { background-color: #e83e8c; }

.package-card {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin: 15px 0;
    transition: all 0.3s ease;
}

.package-card:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.package-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: 15px;
}

.package-stats {
    display: flex;
    gap: 15px;
    font-size: 0.9rem;
    color: #6c757d;
}

.comparison-table {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.comparison-table th {
    background-color: var(--django-green);
    color: white;
    padding: 15px;
    text-align: left;
}

.comparison-table td {
    padding: 15px;
    border-bottom: 1px solid #dee2e6;
}

.comparison-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.async-diagram {
    background-color: #1e1e1e;
    color: #d4d4d4;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    font-family: 'Courier New', monospace;
}

.async-line {
    margin: 10px 0;
    padding: 5px;
}

.async-time {
    color: #569CD6;
    margin-right: 10px;
}

.async-event {
    color: #4EC9B0;
}

.config-file {
    background-color: #1e1e1e;
    color: #d4d4d4;
    border-radius: 5px;
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
    margin: 15px 0;
    position: relative;
}

.config-file .comment {
    color: #6A9955;
}

.config-file .keyword {
    color: #569CD6;
}

.config-file .string {
    color: #CE9178;
}

.config-file .number {
    color: #B5CEA8;
}

.copy-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.copy-btn:hover {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .package-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .package-stats {
        margin-top: 10px;
    }

    .template-diagram .diagram-item {
        display: block;
        margin: 10px auto;
    }

    .template-diagram .arrow {
        display: block;
        margin: 10px auto;
        transform: rotate(90deg);
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 代码示例增强 */
.code-example {
    position: relative;
    margin: 20px 0;
}

.code-tabs {
    display: flex;
    background-color: #f8f9fa;
    border-radius: 5px 5px 0 0;
    overflow: hidden;
}

.code-tab {
    padding: 10px 15px;
    background-color: #e9ecef;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.code-tab.active {
    background-color: white;
    border-bottom: 2px solid var(--django-green);
}

.code-content {
    display: none;
}

.code-content.active {
    display: block;
}