:root {
    --primary-color: #2563eb;
    --primary-color-rgb: 37, 99, 235;
    --secondary-color: #7c3aed;
    --accent-color: #f59e0b;
    --text-color: #334155;
    --light-bg: #f8fafc;
    --error-color: #dc2626;
    --success-color: #10b981;
    --border-color: #d1d5db;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

/* Conteneur principal pour toutes les pages d'authentification */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
    padding: 3rem 1rem;
    background: var(--light-bg);
    position: relative;
}

/* Carte d'authentification */
.auth-card {
    width: 100%;
    max-width: 500px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
}

/* Effet de design sur la carte */
.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* En-tête de la carte */
.auth-card h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    position: relative;
}

.auth-card h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0.8rem auto 0;
    border-radius: 2px;
}

/* Description sous le titre */
.auth-desc {
    text-align: center;
    color: #6b7280;
    margin-bottom: 2rem;
    font-size: 1rem;
}

/* Groupes de formulaire */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    background-color: #f9fafb;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
    background-color: white;
}

/* Indicateur de champ requis */
.required-field {
    color: var(--error-color);
    margin-left: 3px;
}

/* Container pour le password avec bouton toggle */
.password-input-container {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6b7280;
    cursor: pointer;
    padding: 5px;
    font-size: 1rem;
    transition: color 0.2s ease;
}

.toggle-password:hover {
    color: var(--primary-color);
}

/* Rangées de formulaire */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

/* Messages */
.alert {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    position: relative;
}

.alert-danger {
    background-color: #fee2e2;
    color: var(--error-color);
    border: 1px solid #fecaca;
}

.alert-success {
    background-color: #d1fae5;
    color: var(--success-color);
    border: 1px solid #a7f3d0;
}

.alert-info {
    background-color: #e0f2fe;
    color: #0284c7;
    border: 1px solid #bae6fd;
}

.close-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 0;
    font-size: 1.1em;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.close-btn:hover {
    opacity: 1;
}

/* Bouton de soumission */
.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    filter: brightness(1.05);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: #f3f4f6;
    color: var(--text-color);
}

.btn-secondary:hover {
    background: #e5e7eb;
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Zone des actions */
.form-actions {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

/* Effet de ripple pour les boutons */
.btn::after {
    content: '';
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.4) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    pointer-events: none;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 1s;
}

.btn:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

/* Liens sous le formulaire */
.form-links {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: #6b7280;
}

.form-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.form-links a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.separator {
    margin: 0 0.5rem;
    color: #9ca3af;
}

/* Critères de mot de passe */
.password-criteria {
    margin-top: 0.75rem;
    background-color: #f9fafb;
    padding: 0.8rem;
    border-radius: var(--radius-md);
    border: 1px solid #e5e7eb;
}

.criteria-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.3rem;
    font-size: 0.85rem;
}

.criteria-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-right: 0.5rem;
    border-radius: 50%;
}

.criteria-valid {
    background-color: var(--success-color);
    color: white;
}

.criteria-invalid {
    background-color: #d1d5db;
    color: #6b7280;
}

.criteria-text {
    color: #4b5563;
}

/* Informations supplémentaires */
.form-info {
    font-size: 0.85rem;
    color: #6b7280;
    margin-top: 0.5rem;
}

/* Style pour ajuster le placeholder du code de vérification */
.verification-code-input input::placeholder {
    font-size: 0.9rem;
    letter-spacing: normal;
    opacity: 0.6;
}

/* Styles spécifiques pour différents navigateurs */
.verification-code-input input::-webkit-input-placeholder {
    font-size: 0.9rem;
    letter-spacing: normal;
}

.verification-code-input input::-moz-placeholder {
    font-size: 0.9rem;
    letter-spacing: normal;
}

.verification-code-input input:-ms-input-placeholder {
    font-size: 0.9rem;
    letter-spacing: normal;
}