/* Basic Styles for AK College Website */

/* Custom Variables */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Header */
header {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.logo img {
    transition: transform 0.3s ease;
}

.logo img:hover {
    transform: scale(1.05);
}

.contact-info {
    font-size: 0.9rem;
}

/* Navigation */
.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.nav-link.active {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0a58ca 100%);
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

/* Footer */
footer {
    background: #212529 !important;
}

footer a {
    color: #dee2e6;
    transition: color 0.3s ease;
}

footer a:hover {
    color: white;
    text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }

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

/* Utility Classes */
.rounded-lg {
    border-radius: 15px;
}

.shadow-sm {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.shadow {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.shadow-lg {
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

/* Button Styles */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0a58ca 100%);
    border: none;
}

.btn-outline-primary:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0a58ca 100%);
    color: white;
}

/* Badge Styles */
.badge {
    padding: 0.5em 0.8em;
    font-weight: 500;
}

/* Form Styles */
.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    padding: 0.75rem 1rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Table Styles */
.table {
    border-radius: 8px;
    overflow: hidden;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

/* Alert Styles */
.alert {
    border-radius: 8px;
    border: none;
}

/* Loading Spinner */
.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Lightbox Styles */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

.lightbox-overlay.fade-out {
    animation: fadeOut 0.3s ease forwards;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

.lightbox-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s ease;
}

.lightbox-close:hover {
    background: rgba(0, 0, 0, 0.9);
}

.lightbox-image-container {
    max-height: 70vh;
    overflow: hidden;
}

.lightbox-image {
    width: 100%;
    height: auto;
    display: block;
}

.lightbox-caption {
    padding: 20px;
    background: white;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    border: none;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #764ba2;
    transform: translateY(-5px);
}

/* Mobile Menu */
body.mobile-menu-open {
    overflow: hidden;
}

/* Loading animations */
.spinner-border {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    vertical-align: text-bottom;
    border: 0.2em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    to {
        transform: rotate(360deg);
    }
}

/* Form validation styles */
.was-validated .form-control:valid {
    border-color: #28a745;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
}

.was-validated .form-control:invalid {
    border-color: #dc3545;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23dc3545' viewBox='0 0 12 12'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
}

/* Responsive utilities */
@media (max-width: 768px) {
    .lightbox-content {
        max-width: 95%;
        max-height: 95%;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}