/* ===== Curriculum Page Styles ===== */

/* Curriculum Hero */
.curriculum-hero {
    margin-top: var(--header-height);
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8f8f8 0%, #ffffff 100%);
    text-align: center;
}

/* Overview Section */
.curriculum-overview {
    padding: 80px 0;
    background: var(--bg-white);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.overview-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-light);
    border-radius: 8px;
    transition: var(--transition);
}

.overview-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.overview-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-white);
    border-radius: 50%;
    font-size: 32px;
    color: var(--text-primary);
}

.overview-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.overview-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Year Tabs */
.curriculum-tabs-section {
    padding: 60px 0 100px;
    background: var(--bg-white);
}

.year-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0;
}

.year-tab {
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: var(--transition);
    cursor: pointer;
}

.year-tab:hover {
    color: var(--text-primary);
}

.year-tab.active {
    color: var(--text-primary);
    font-weight: 600;
    border-bottom-color: var(--text-primary);
}

/* Curriculum Content */
.curriculum-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

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

/* Semester Grid */
.semester-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
}

.semester-block {
    background: var(--bg-light);
    border-radius: 8px;
    padding: 40px;
    transition: var(--transition);
}

.semester-block:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.semester-title {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.semester-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--text-primary);
    color: var(--bg-white);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
}

/* Course List */
.course-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.course-category {
    padding: 0;
}

.course-category h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.course-category ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.course-category li {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-white);
    border-radius: 4px;
    transition: var(--transition);
}

.course-category li:hover {
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.course-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.course-name-en {
    font-size: 13px;
    color: var(--text-secondary);
    font-style: italic;
}

.course-credit {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-light);
    padding: 4px 12px;
    border-radius: 12px;
    white-space: nowrap;
}

/* Learning Outcomes */
.learning-outcomes {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f8f8 0%, #ffffff 100%);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.outcomes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.outcome-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.outcome-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.outcome-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--text-primary);
    color: var(--bg-white);
    border-radius: 50%;
    font-size: 24px;
}

.outcome-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.outcome-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .semester-grid {
        grid-template-columns: 1fr;
    }
    
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .curriculum-hero {
        padding: 80px 0 60px;
    }
    
    .year-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        gap: 8px;
    }
    
    .year-tab {
        padding: 12px 24px;
        font-size: 14px;
        white-space: nowrap;
    }
    
    .semester-block {
        padding: 24px;
    }
    
    .semester-title {
        font-size: 20px;
    }
    
    .course-category li {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .course-name-en {
        display: block;
        margin-top: 4px;
    }
    
    .course-credit {
        align-self: flex-start;
        margin-top: 8px;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .outcomes-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .semester-grid {
        gap: 24px;
    }
    
    .semester-block {
        padding: 20px;
    }
    
    .course-category h4 {
        font-size: 12px;
    }
    
    .course-name {
        font-size: 14px;
    }
    
    .course-name-en {
        font-size: 12px;
    }
    
    .section-title {
        font-size: 28px;
    }
}