/* Base Styles */
:root {
    --primary: #4e73df;
    --primary-light: #e3ebf7;
    --secondary: #858796;
    --success: #1cc88a;
    --info: #36b9cc;
    --warning: #f6c23e;
    --danger: #e74a3b;
    --light: #f8f9fc;
    --dark: #5a5c69;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}

/* Hero Section */
.hero-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, #224abe 100%);
    color: white;
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-section .lead {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

/* Course Cards */
.course-card {
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    border-radius: 0.5rem;
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.course-card .card-img-top {
    height: 160px;
    object-fit: cover;
}

/* Icon Boxes */
.icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-bottom: 1rem;
}

/* Testimonials */
.testimonial-card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: #2e59d9;
    border-color: #2653d4;
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    color: white;
}

/* Forms */
.form-control, .form-select {
    padding: 0.75rem 1rem;
    border-radius: 0.35rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 2.25rem;
    }
    
    .hero-section .lead {
        font-size: 1.1rem;
    }
}