/* Study Materials Program Page Styles */

/* Hero Section */
.hero-section {
    position: relative;
    overflow: hidden;
    min-height: 400px;
    display: flex;
    align-items: center;
}

.bg-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.bg-gradient-tertiary {
    background: linear-gradient(135deg, #4c63d2 0%, #5a3a95 100%);
    color: white;
}

.hero-bg-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 1px, transparent 1px),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 50px 50px, 80px 80px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero-content .lead {
    font-size: 1.3rem;
    color: #ffffff;
    font-weight: 500;
    margin-bottom: 1rem;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.hero-content p {
    color: rgba(255, 255, 255, 0.9);
}

.hero-icon {
    position: relative;
    z-index: 1;
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-in-out;
}

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

/* Semester Section Header with Blue & Green Gradient */
.section-header {
    padding: 2.5rem 0;
    background: linear-gradient(135deg, #0066cc 0%, #00b386 100%);
    border-radius: 12px;
    margin-bottom: 3rem !important;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.2);
}

.section-header h2 {
    color: #ffffff;
    font-weight: 700;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.section-header p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.section-header i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        min-height: 350px;
    }

    .hero-content h1 {
        font-size: 2rem;
        text-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    }

    .hero-content .lead {
        font-size: 1.1rem;
    }

    .section-header {
        padding: 2rem 1.5rem;
        margin-bottom: 2rem !important;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .section-header p {
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        min-height: 300px;
        padding: 2rem 0;
    }

    .hero-content h1 {
        font-size: 1.5rem;
        text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
    }

    .hero-content .lead {
        font-size: 1rem;
    }

    .section-header {
        padding: 1.5rem 1rem;
        margin-bottom: 1.5rem !important;
        border-radius: 8px;
    }

    .section-header h2 {
        font-size: 1.3rem;
    }

    .section-header p {
        font-size: 0.9rem;
    }
}