.page-header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 40px 20px;
    text-align: center;
    margin-bottom: 40px;
}
.page-header h1 {
    font-size: 2.5em;
    font-weight: 900;
    margin: 0 0 10px 0;
}
.page-header p {
    font-size: 1.2em;
    opacity: 0.9;
    color: white;
}
.courses-catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto 40px auto;
}
.course-catalog-card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}
.course-catalog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}
.course-image img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}
.course-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.course-content h3 {
    font-size: 1.3em;
    font-weight: 700;
    margin: 0 0 10px 0;
}
.course-content p {
    font-size: 0.95em;
    color: var(--text-secondary);
    flex-grow: 1;
    margin-bottom: 20px;
}
.course-footer {
    padding-top: 15px;
    margin-top: auto;
}
.course-price {
    font-size: 1.4em;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 15px;
    display: block;
    text-align: center;
}
.course-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.course-actions .btn {
    width: 100%;
    padding: 10px;
    font-size: 0.9em;
}

/* ---== التعديل الجديد هنا ==--- */
.btn-primary {
    background-color: var(--primary);
    color: white;
}
.btn-secondary {
    background-color: #e9ecef;
    color: var(--dark);
}