/* ================================
   CAMPUSFLOW - MAIN STYLES
   ================================ */

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

    --font-family-sans-serif: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-monospace: 'Courier New', Courier, monospace;

    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 1rem;

    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);

    --transition: all 0.15s ease-in-out;
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-sans-serif);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #ffffff;
}

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

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
}

.display-1,
.display-2,
.display-3,
.display-4,
.display-5,
.display-6 {
    font-weight: 700;
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0b5ed7 100%);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0b5ed7 0%, #0a58ca 100%);
    transform: translateY(-1px);
    box-shadow: var(--box-shadow-lg);
}

.btn-outline-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--box-shadow);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

/* Cards */
.card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.feature-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

/* Forms */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #dee2e6;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.input-group-text {
    background-color: var(--light-color);
    border-color: #dee2e6;
}

/* Navigation */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Tables */
.table {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.table thead th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    border: none;
    padding: 1rem;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

.table td {
    padding: 1rem;
    vertical-align: middle;
}

/* Modals */
.modal-content {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
}

.modal-header {
    background-color: var(--primary-color);
    color: white;
    border-bottom: none;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.modal-header .btn-close {
    filter: invert(1);
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--border-radius-lg);
    font-weight: 500;
}

.alert-success {
    background-color: rgba(25, 135, 84, 0.1);
    color: var(--success-color);
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    color: #b45309;
}

.alert-info {
    background-color: rgba(13, 202, 240, 0.1);
    color: var(--info-color);
}

/* Badges */
.badge {
    font-weight: 500;
    border-radius: var(--border-radius);
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--light-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Custom Utility Classes */
.shadow-custom {
    box-shadow: var(--box-shadow-lg) !important;
}

.rounded-custom {
    border-radius: var(--border-radius-lg) !important;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0b5ed7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Avatar */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--light-color);
}

.avatar-lg {
    width: 80px;
    height: 80px;
}

.avatar-xl {
    width: 120px;
    height: 120px;
}

/* Status Indicators */
.status-active {
    color: var(--success-color);
}

.status-inactive {
    color: var(--secondary-color);
}

.status-pending {
    color: var(--warning-color);
}

.status-suspended {
    color: var(--danger-color);
}

/* Custom Dropdown */
.dropdown-menu {
    border: none;
    box-shadow: var(--box-shadow-lg);
    border-radius: var(--border-radius-lg);
}

.dropdown-item {
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .table-responsive {
        border-radius: var(--border-radius-lg);
    }

    .hero-buttons {
        text-align: center;
    }

    .hero-buttons .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .hero-buttons .btn:last-child {
        margin-bottom: 0;
    }
}

@media (max-width: 576px) {
    .display-4 {
        font-size: 2rem;
    }

    .lead {
        font-size: 1rem;
    }

    .btn-lg {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .btn {
        display: none;
    }
}