/* Page Header */
.page-header {
    background-color: var(--light);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.page-header h1 {
    color: var(--dark);
    font-weight: 700;
}

.page-header .lead {
    color: var(--secondary);
}

/* Program Navigation */
.program-nav {
    margin-top: -2rem;
}

.program-nav-item {
    display: block;
    text-decoration: none;
    color: var(--dark);
    background-color: #fff;
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.program-nav-item:hover,
.program-nav-item.active {
    color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.program-nav-item .icon-wrapper {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background-color: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.program-nav-item:hover .icon-wrapper,
.program-nav-item.active .icon-wrapper {
    background-color: var(--primary);
    color: #fff;
}

.program-nav-item i {
    font-size: 1.5rem;
}

.program-nav-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.program-nav-item p {
    color: var(--secondary);
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* Program Section */
.program-section {
    scroll-margin-top: 2rem;
}

.program-section .card {
    transition: all 0.3s ease;
}

.program-section .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1) !important;
}

.program-description p {
    color: var(--secondary);
    font-size: 1.1rem;
    line-height: 1.6;
}

.program-description ul li {
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.program-description ul li i {
    width: 20px;
    text-align: center;
}

/* Program Details */
.program-details .table th {
    font-weight: 600;
    color: var(--dark);
    width: 200px;
}

.program-details .table td {
    vertical-align: middle;
}

.program-details ul {
    margin-bottom: 0;
}

.program-details ul li {
    margin-bottom: 0.5rem;
}

.program-details ul li:last-child {
    margin-bottom: 0;
}

/* Program Sidebar */
.program-sidebar .card {
    transition: all 0.3s ease;
}

.program-sidebar .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1) !important;
}

.program-sidebar ul li {
    transition: all 0.3s ease;
}

.program-sidebar ul li:hover {
    transform: translateX(5px);
}

.program-sidebar ul li i {
    width: 20px;
    text-align: center;
}

.program-sidebar .btn {
    transition: all 0.3s ease;
}

.program-sidebar .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Course Cards */
.course-card {
    background-color: #fff;
    transition: all 0.3s ease;
    height: 100%;
}

.course-card:hover {
    background-color: var(--light);
}

.course-card h5 {
    color: var(--primary);
    font-weight: 600;
}

.course-card ul li {
    transition: all 0.3s ease;
}

.course-card ul li:hover {
    transform: translateX(5px);
}

.course-card ul li i {
    width: 20px;
    text-align: center;
}

/* Responsive Styles */
@media (max-width: 991.98px) {
    .page-header {
        padding: 3rem 0;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .program-nav {
        margin-top: 0;
    }

    .program-nav-item {
        margin-bottom: 1rem;
    }

    .program-sidebar {
        margin-top: 2rem;
    }
}

@media (max-width: 767.98px) {
    .page-header {
        padding: 2rem 0;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .program-nav-item {
        padding: 1rem;
    }

    .program-nav-item .icon-wrapper {
        width: 50px;
        height: 50px;
    }

    .program-nav-item i {
        font-size: 1.25rem;
    }

    .program-nav-item h3 {
        font-size: 1.1rem;
    }

    .program-description p {
        font-size: 1rem;
    }

    .card-body {
        padding: 1.5rem;
    }
}

@media (max-width: 575.98px) {
    .page-header h1 {
        font-size: 1.5rem;
    }

    .page-header .lead {
        font-size: 1rem;
    }

    .program-nav-item {
        padding: 0.75rem;
    }

    .program-nav-item .icon-wrapper {
        width: 40px;
        height: 40px;
        margin-bottom: 0.5rem;
    }

    .program-nav-item i {
        font-size: 1rem;
    }

    .program-nav-item h3 {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }

    .program-nav-item p {
        font-size: 0.8rem;
    }

    .card-body {
        padding: 1rem;
    }

    .program-details .table th,
    .program-details .table td {
        font-size: 0.9rem;
    }
}

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 1001;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}