/* css/courses.css */

.courses-section {
    padding: 5rem 4%; /* py-20 px-4 md:px-8 lg:px-16 */
    background: rgba(0, 0, 0, 0.4); /* Semi-transparent black */
    backdrop-filter: blur(8px); /* Frosted glass effect */
    border-top-left-radius: 1.5rem;
    border-top-right-radius: 1.5rem;
    box-shadow: inset 0 4px 30px rgba(0, 0, 0, 0.2);
    margin-top: -1rem; /* Overlap slightly with hero for smooth transition */
    position: relative;
    z-index: 50; /* Ensure it's above hero blobs */
}

.courses-section h3 {
    font-size: 2.5rem; /* text-4xl */
    font-weight: 800; /* font-extrabold */
    text-align: center;
    margin-bottom: 4rem; /* mb-16 */
    color: #fff;
    text-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* Responsive grid */
    gap: 2.5rem; /* gap-10 */
    max-width: 72rem; /* max-w-6xl */
    margin: 0 auto;
}

.course-card {
    padding: 2rem; /* p-8 */
    border-radius: 1.5rem; /* rounded-2xl */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3); /* shadow-xl */
    transition: all 0.3s ease-in-out;
    border: 1px solid rgba(255, 255, 255, 0.1); /* Subtle border */
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-0.5rem); /* hover:-translate-y-2 */
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4); /* hover:shadow-2xl */
}

.course-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem; /* mb-6 */
}

.course-icon {
    width: 4rem; /* w-16 */
    height: 4rem; /* h-16 */
    border-radius: 9999px; /* rounded-full */
    margin-right: 1rem; /* mr-4 */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.course-card h4 {
    font-size: 1.875rem; /* text-3xl */
    font-weight: 700; /* font-bold */
    color: #fff;
    margin: 0;
}

.course-card p {
    font-size: 1.125rem; /* text-lg */
    color: #d1d5db; /* gray-200 */
    margin-bottom: 2rem; /* mb-8 */
    line-height: 1.75; /* leading-relaxed */
    flex-grow: 1; /* Makes paragraphs take available space */
}

.course-card .btn-secondary {
    display: block; /* block */
    width: fit-content; /* Adjust width to content */
    margin: 0 auto; /* Center the button */
    padding: 0.75rem 1.5rem; /* py-3 px-6 */
    font-weight: 600; /* font-semibold */
    border-radius: 9999px; /* rounded-full */
    transition: all 0.3s ease-in-out;
}

.course-card .btn-secondary:hover {
    transform: scale(1.05);
    background-color: #e5e7eb; /* gray-200 */
}

/* Specific Card Colors */
.flutter-card {
    background: linear-gradient(135deg, #1e3a8a, #172554); /* from-blue-700 to-blue-900 */
    border-color: #2563eb; /* blue-600 */
}
.flutter-card .btn-secondary {
    color: #1e3a8a; /* blue-800 */
}

.python-card {
    background: linear-gradient(135deg, #166534, #14532d); /* from-green-700 to-green-900 */
    border-color: #16a34a; /* green-600 */
}
.python-card .btn-secondary {
    color: #166534; /* green-800 */
}

.c-card {
    background: linear-gradient(135deg, #991b1b, #7f1d1d); /* from-red-700 to-red-900 */
    border-color: #dc2626; /* red-600 */
}
.c-card .btn-secondary {
    color: #991b1b; /* red-800 */
}

/* Responsive adjustments for smaller screens */
@media (max-width: 768px) {
    .courses-section {
        padding: 3rem 2%;
    }
    .courses-section h3 {
        font-size: 2rem;
        margin-bottom: 2.5rem;
    }
    .course-grid {
        grid-template-columns: 1fr; /* Stack cards on small screens */
        gap: 1.5rem;
    }
    .course-card {
        padding: 1.5rem;
    }
    .course-card h4 {
        font-size: 1.5rem;
    }
    .course-card p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    .course-card .btn-secondary {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }
}

.content-buttons-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.content-button-wrapper {
    background: rgba(255, 255, 255, 0.05); /* Very subtle background for the wrapper */
    border-radius: 0.75rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    overflow: hidden; /* Ensures border-radius applies to child */
    border: 1px solid rgba(255, 255, 255, 0.1); /* Subtle wrapper border */
}

.content-button-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.content-button {
    display: block;
    width: 100%;
    padding: 1rem 1.5rem;
    text-align: center;
    text-decoration: none;
    font-size: 1.15rem;
    font-weight: 500;
    color: #fff;
    /* Updated gradient for a more vibrant look */
    background: linear-gradient(135deg, #4a005a, #2a0050); /* Dark purple gradient */
    border: none; /* Remove previous border */
    border-radius: 0.75rem; /* Match parent wrapper */
    transition: all 0.3s ease-in-out; /* Smooth transition for all properties */
    box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.05), 0 5px 15px rgba(0, 0, 0, 0.3); /* Subtle inner shadow, stronger outer */
}

.content-button:hover {
    /* More pronounced hover effect */
    background: linear-gradient(135deg, #5a006a, #3a0060); /* Lighter purple gradient on hover */
    color: #93c5fd; /* Light blue on hover for contrast */
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.1), 0 8px 20px rgba(0, 0, 0, 0.5); /* Stronger shadows */
    transform: scale(1.02); /* Slight scale on hover */
}