/* Charte graphique Université Félix Houphouët-Boigny */
:root {
    --primary-green: #1B6B3F;
    --secondary-green: #2E8B57;
    --light-green: #90EE90;
    --dark-green: #0F4D2A;
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --gray: #CCCCCC;
    --dark-gray: #333333;
    --error-red: #DC3545;
    --success-green: #28A745;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--light-green) 0%, var(--white) 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 999px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(27, 107, 63, 0.2);
    overflow: hidden;
}

/* En-tête */
.header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    color: var(--white);
    padding: 30px;
    text-align: center;
    position: relative;
}

.header img.logo {
    width: 150px;
    height: 95px;
    margin-bottom: 15px;
    background: var(--white);
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.header h1 {
    font-size: 28px;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
    font-size: 16px;
    opacity: 0.9;
}

/* Contenu principal */
.content {
    padding: 40px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-gray);
    font-size: 14px;
}

.form-group label .required {
    color: var(--error-red);
    margin-left: 3px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    background-color: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(27, 107, 63, 0.1);
}

.form-control:disabled {
    background-color: var(--light-gray);
    cursor: not-allowed;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Boutons */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(27, 107, 63, 0.3);
}

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

.btn-secondary:hover {
    background: var(--dark-gray);
    color: var(--white);
}

.btn-block {
    width: 100%;
}

.btn-group {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

/* Alertes */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background-color: #D4EDDA;
    border: 1px solid #C3E6CB;
    color: #155724;
}

.alert-error {
    background-color: #F8D7DA;
    border: 1px solid #F5C6CB;
    color: #721C24;
}

.alert-info {
    background-color: #D1ECF1;
    border: 1px solid #BEE5EB;
    color: #0C5460;
}

.alert-warning {
    background-color: #FFF3CD;
    border: 1px solid #FFEEBA;
    color: #856404;
}

/* Carte d'information étudiant */
.student-info {
    background: var(--light-gray);
    padding: 25px;
    border-radius: 10px;
    border-left: 5px solid var(--primary-green);
    margin-bottom: 30px;
}

.student-info h3 {
    color: var(--primary-green);
    margin-bottom: 20px;
    font-size: 20px;
}

.info-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: var(--dark-gray);
}

.info-value {
    color: var(--dark-gray);
}

/* Upload de photo */
.photo-upload {
    border: 3px dashed var(--primary-green);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    background: var(--light-gray);
    transition: all 0.3s ease;
    cursor: pointer;
}

.photo-upload:hover {
    background: rgba(27, 107, 63, 0.05);
    border-color: var(--secondary-green);
}

.photo-upload input[type="file"] {
    display: none;
}

.photo-preview {
    max-width: 300px;
    margin: 20px auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.photo-preview img {
    width: 100%;
    border-radius: 10px;
}

/* Instructions */
.instructions {
    background: rgba(27, 107, 63, 0.05);
    border-left: 4px solid var(--primary-green);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 25px;
}

.instructions h4 {
    color: var(--primary-green);
    margin-bottom: 15px;
    font-size: 16px;
}

.instructions ul {
    padding-left: 25px;
}

.instructions li {
    margin-bottom: 8px;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* Loader */
.loader {
    border: 4px solid var(--light-gray);
    border-top: 4px solid var(--primary-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Pied de page */
.footer {
    background: var(--dark-green);
    color: var(--white);
    text-align: center;
    padding: 20px;
    font-size: 14px;
}

/* Steps indicator */
.steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gray);
    z-index: 1;
}

.step {
    position: relative;
    text-align: center;
    flex: 1;
    z-index: 2;
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--white);
    border: 3px solid var(--gray);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-weight: 700;
    color: var(--gray);
    transition: all 0.3s ease;
}

.step.active .step-circle {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: var(--white);
}

.step.completed .step-circle {
    background: var(--success-green);
    border-color: var(--success-green);
    color: var(--white);
}

.step-label {
    font-size: 13px;
    color: var(--dark-gray);
    font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .steps {
        flex-direction: column;
        gap: 20px;
    }
    
    .steps::before {
        display: none;
    }
    
    .content {
        padding: 20px;
    }
    
    .header h1 {
        font-size: 22px;
    }
}