/* Style pour le formulaire étudiant */
:root {
    --primary-color: #0056b3;
    --secondary-color: #17a2b8;
    --accent-color: #ffc107;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body.student-form-page {
    background-color: #f5f7fa;
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}

.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.5rem 0;
    margin-bottom: 2rem;
    border-bottom: 5px solid var(--accent-color);
    box-shadow: var(--box-shadow);
}

.page-header .logo-container {
    display: flex;
    align-items: center;
}

.page-header .logo-container img {
    margin-right: 1rem;
    border-radius: 50%;
    border: 2px solid white;
    padding: 2px;
    background-color: white;
}

.page-header h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 600;
}

.page-header .subtitle {
    opacity: 0.9;
    font-size: 1rem;
    margin-top: 0.3rem;
}

.form-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: var(--transition);
}

.form-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.form-card .card-header {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.5rem;
    border-bottom: none;
}

.form-card .card-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 500;
}

.form-card .card-body {
    padding: 2rem;
}

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #eee;
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section-title {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.form-section-title i {
    margin-right: 0.5rem;
}

.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #ddd;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-group label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #555;
}

.form-group label.required:after {
    content: " *";
    color: var(--danger-color);
}

.btn {
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #004494;
    border-color: #004494;
}

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: #138496;
    border-color: #138496;
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-success:hover {
    background-color: #218838;
    border-color: #218838;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-icon i {
    margin-right: 0.5rem;
}

.search-section {
    background-color: rgba(0, 86, 179, 0.05);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-color);
}

.search-section .form-group {
    margin-bottom: 0;
}

.search-button {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-upload-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.image-previewer {
    width: 150px;
    height: 150px;
    border: 2px dashed var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--light-bg);
    transition: all 0.3s ease;
}

.image-previewer img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
    width: 100%;
    height: 100%;
    opacity: 1;
}

.image-upload-help {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Styles pour la modale de rognage */
.crop-modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s;
}

.crop-modal-content {
    background-color: #fff;
    margin: 2% auto;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 800px;
    position: relative;
    animation: slideInDown 0.4s;
}

.crop-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.crop-modal-title {
    margin: 0;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.25rem;
}

.crop-modal-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.2s;
}

.crop-modal-close:hover {
    color: var(--danger-color);
}

.crop-container {
    max-height: 500px;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.crop-preview {
    overflow: hidden;
    width: 150px;
    height: 150px;
    margin: 10px auto;
    border: 1px solid #ddd;
    border-radius: 50%;
}

.crop-modal-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: 15px;
    border-top: 1px solid #e9ecef;
}

.crop-modal-footer button {
    margin-left: 10px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.animate__fadeIn {
    animation-duration: 0.8s;
}

.animate__fadeInDown {
    animation-duration: 0.6s;
}

.was-validated .form-control:valid {
    border-color: var(--success-color);
    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");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.was-validated .form-control:invalid {
    border-color: var(--danger-color);
    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");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-footer {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
}

.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.loading-spinner {
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 5px solid var(--primary-color);
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

.loading-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 500;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.alert {
    border-radius: var(--border-radius);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border: none;
}

.alert-info {
    background-color: rgba(23, 162, 184, 0.1);
    color: var(--secondary-color);
    border-left: 4px solid var(--secondary-color);
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.custom-file {
    position: relative;
    display: inline-block;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    margin-bottom: 0;
}

.custom-file-input {
    position: relative;
    z-index: 2;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    margin: 0;
    opacity: 0;
}

.custom-file-label {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1;
    height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 0.75rem;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.custom-file-label::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
    display: block;
    height: calc(1.5em + 0.75rem);
    padding: 0.375rem 0.75rem;
    line-height: 1.5;
    color: #fff;
    content: "Parcourir";
    background-color: var(--primary-color);
    border-left: inherit;
    border-radius: 0 0.25rem 0.25rem 0;
}

/* Style pour le fond */
.custom-background {
    background: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), url(/images/university.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

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

/* Responsive */
@media (max-width: 768px) {
    .page-header {
        padding: 1rem 0;
    }
    
    .form-card .card-body {
        padding: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
    }
    
    .image-previewer {
        height: 200px;
        width: 200px;
    }
}

/* Animation pour les transitions */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}