/* Internship Management System - CSS Stylesheet */

: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;
    --border-radius: 10px;
    --box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: #333;
}

.navbar-custom {
    box-shadow: var(--box-shadow);
    background: linear-gradient(90deg, #0d6efd 0%, #0b5ed7 100%) !important;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 0.5px;
}

.main-content {
    flex: 1;
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
}

/* Authentication Pages */
.auth-container {
    min-height: calc(100vh - 150px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.auth-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2.5rem;
    width: 100%;
    max-width: 450px;
    animation: slideIn 0.3s ease-in-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-card h2 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-weight: 700;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: #333;
    margin-bottom: 0.5rem;
}

.form-control {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

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

.form-select {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.btn {
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(90deg, #0d6efd 0%, #0b5ed7 100%);
}

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

.btn-success {
    background: linear-gradient(90deg, #198754 0%, #157347 100%);
}

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

.btn-danger {
    background: linear-gradient(90deg, #dc3545 0%, #c82333 100%);
}

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

.btn-warning {
    background: linear-gradient(90deg, #ffc107 0%, #ffb300 100%);
    color: #000;
}

.btn-info {
    background: linear-gradient(90deg, #0dcaf0 0%, #0bacf3 100%);
}

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid #e0e0e0;
}

.auth-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.auth-link a:hover {
    color: #0b5ed7;
}

/* Role Selection */
.role-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.role-card {
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.role-card:hover {
    border-color: var(--primary-color);
    background: #f0f7ff;
    transform: translateY(-5px);
}

.role-card input[type="radio"] {
    display: none;
}

.role-card input[type="radio"]:checked+.role-card-content {
    color: var(--primary-color);
}

.role-card input[type="radio"]:checked+.role-card-content i {
    color: var(--primary-color);
}

.role-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #999;
    transition: color 0.3s ease;
}

/* Dashboard */
.dashboard-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 0;
    margin-bottom: 2rem;
    border-radius: 0;
}

.dashboard-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.dashboard-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.25);
}

.card-header {
    background: linear-gradient(90deg, #0d6efd 0%, #0b5ed7 100%);
    color: white;
    font-weight: 700;
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.card-body {
    padding: 1.5rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    border-left: 5px solid var(--primary-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: #999;
    font-size: 1rem;
    margin-top: 0.5rem;
}

/* Table Styles */
.table {
    margin: 0;
    border-collapse: collapse;
}

.table-bordered,
.table-bordered th,
.table-bordered td {
    border: 1px solid #d0d7df;
}

.table thead th {
    background: linear-gradient(90deg, #0d6efd 0%, #0b5ed7 100%);
    color: white;
    border: 1px solid #c7d2df;
    font-weight: 700;
}

.table tbody tr {
    transition: background-color 0.3s ease;
}

.table tbody tr:hover {
    background-color: #f5f5f5;
}

.table td {
    vertical-align: middle;
    border-color: #e0e0e0;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.action-buttons .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

/* Alert Styles */
.alert {
    border-radius: 8px;
    border: none;
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: #d1e7dd;
    color: #0f5132;
}

.alert-danger {
    background-color: #f8d7da;
    color: #842029;
}

.alert-warning {
    background-color: #fff3cd;
    color: #664d03;
}

.alert-info {
    background-color: #cfe2ff;
    color: #084298;
}

/* Form Validation */
.invalid-feedback {
    display: block;
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-valid {
    border-color: var(--success-color);
}

/* Pagination */
.pagination {
    margin-top: 2rem;
}

.page-link {
    color: var(--primary-color);
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    margin: 0 0.25rem;
}

.page-link:hover {
    background-color: var(--primary-color);
    color: white;
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Footer */
.footer {
    background: linear-gradient(90deg, #212529 0%, #1a1e23 100%);
    margin-top: 5rem;
    border-top: 3px solid var(--primary-color);
}

.footer p {
    margin: 0.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-card {
        padding: 2rem 1.5rem;
    }

    .dashboard-title {
        font-size: 1.75rem;
    }

    .role-selection {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
    }
}

/* Loading Animation */
.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.custom-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

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

/* Utility Classes */
.text-primary {
    color: var(--primary-color) !important;
}

.text-success {
    color: var(--success-color) !important;
}

.text-danger {
    color: var(--danger-color) !important;
}

.text-warning {
    color: var(--warning-color) !important;
}

.bg-light-blue {
    background-color: #f0f7ff;
}

.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.no-data {
    text-align: center;
    padding: 3rem;
    color: #999;
}

.no-data i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #ddd;
}

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

.modal-header {
    background: linear-gradient(90deg, #0d6efd 0%, #0b5ed7 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-footer {
    border-top: 1px solid #e0e0e0;
}

/* Print Styles */
@media print {

    .navbar,
    .footer,
    .btn,
    .action-buttons {
        display: none !important;
    }
}