/* 首页重构样式 - home-styles.css */
[data-theme="dark"] {
    --primary-color: #818cf8;
    --primary-light: rgba(129, 140, 248, 0.15);
}

/* 局部布局微调 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    height: 72px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary-light) 0%, transparent 100%);
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* 课程地图布局 */
.curriculum-map {
    padding: 60px 0 100px;
}

.category-section {
    margin-bottom: 60px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.category-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.category-badge {
    padding: 4px 12px;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--primary-light);
    color: var(--primary-color);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* 课程卡片 */
.course-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: 32px;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
}

.course-card.active {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.course-card.active:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.course-card.locked {
    opacity: 0.6;
    cursor: not-allowed;
    filter: grayscale(0.5);
}

.course-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.course-card h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.course-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.status-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.active .status-tag {
    background: var(--secondary-color);
    color: white;
    content: 'OPEN';
}

.locked .status-tag {
    background: #94a3b8;
    color: white;
    content: 'SOON';
}

/* 响应式 */
.hamburger {
    display: none;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .hero {
        padding: 100px 0 60px;
    }
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 1.25rem;
}