:root {
   -primary: #166db4;
    --primary-dark:#023350;
    --primary-light: #4aaeff;
    --secondary: #4aaeff;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-700: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --radius: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body.register-page {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #166db4 0%, #023350 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark);
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
}

/* Wrapper principal */
.register-wrapper {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

/* Container centré */
.register-center-container {
    position: relative;
    width: 100%;
    max-width: 520px;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Effets de fond */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}

.gradient-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.1;
}

.circle-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    top: -200px;
    right: -200px;
    animation: float-1 20s ease-in-out infinite;
}

.circle-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(45deg, var(--secondary), #ec4899);
    bottom: -150px;
    left: -150px;
    animation: float-2 25s ease-in-out infinite;
}

.circle-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(45deg, var(--accent), #10b981);
    top: 50%;
    left: 80%;
    animation: float-3 30s ease-in-out infinite;
}

/* Carte d'inscription */
.register-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: 3rem;
    width: 100%;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transform: translateY(0);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.register-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

.register-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* En-tête */
.register-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.logo-glow {
    position: absolute;
    inset: -8px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border-radius: 24px;
    filter: blur(12px);
    opacity: 0.3;
    z-index: 1;
}

.logo-image {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 2;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.register-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    background:var(--primary);
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.register-subtitle {
    font-size: 0.875rem;
    color: var(--gray-700);
    font-weight: 500;
    margin-bottom: 1rem;
}

.register-nav {
    margin-top: 1rem;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
    background: var(--gray-100);
}

.nav-link:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-1px);
}

/* Alertes */
.alert {
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    animation: slideIn 0.3s ease-out;
}

.alert-error {
    background: linear-gradient(135deg, #fee, #fcc);
    border-left: 4px solid var(--error);
}

.alert-success {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    border-left: 4px solid var(--success);
}

.alert-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert-error .alert-icon {
    color: var(--error);
}

.alert-success .alert-icon {
    color: var(--success);
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.alert-error .alert-title {
    color: var(--error);
}

.alert-success .alert-title {
    color: var(--success);
}

.alert-message {
    color: var(--gray-700);
    font-size: 0.875rem;
}

.alert-close {
    background: none;
    border: none;
    color: var(--gray-700);
    cursor: pointer;
    padding: 0.25rem;
    opacity: 0.7;
    transition: var(--transition);
    flex-shrink: 0;
}

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

/* Sections du formulaire */
.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

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

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title i {
    color: var(--primary);
}

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

.form-group:last-child {
    margin-bottom: 0;
}

.input-icon {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    display: flex;
    align-items: center;
    padding-left: 1rem;
    color: var(--gray-700);
    z-index: 2;
    transition: var(--transition);
}

.form-group input {
   width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    font-size: 0.9375rem;
    background: var(--gray-100);
    border: 2px solid transparent;
    border-radius: var(--radius);
    color: var(--dark);
    transition: var(--transition);
    position: relative;
    z-index: 1;

}

.form-group input:focus {
    outline: none;
    background: white;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(22, 109, 180, 0.1);
}

.form-group input:invalid:not(:focus):not(:placeholder-shown) {
    border-color: var(--error);
}
.form-group input:focus + label::before,
.form-group input:not(:placeholder-shown) + label::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: white;
    z-index: -1;
    transform: translateY(-50%);
}


.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    transform: translateY(-28px) scale(0.85); /* Ajuster la valeur Y */
    color: var(--primary);
    background: white; /* Ajouter un fond blanc */
    padding: 0 4px; /* Ajouter du padding pour éviter l'effet barré */
    z-index: 4; /* Assurer qu'il est au-dessus de l'input */
}

.form-group label {
       position: absolute;
    left: 3rem;
    top: 1rem;
    color: var(--gray-700);
    font-size: 0.9375rem;
    pointer-events: none;
    transition: var(--transition);
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transform-origin: 0 0; /* Définir l'origine de la transformation */

}

.required-mark {
    color: var(--error);
    font-size: 0.875rem;
}

.input-border {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: transform 0.3s ease;
    z-index: 3;
}

.form-group input:focus ~ .input-border {
    transform: scaleX(1);
}

.input-hint {
    font-size: 0.75rem;
    color: var(--gray-700);
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.input-hint i {
    color: var(--primary);
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-700);
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition);
    z-index: 2;
}

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

/* Indicateur de force du mot de passe */
.password-strength {
    margin-top: 0.75rem;
}

.strength-bar {
    height: 4px;
    background: var(--gray-300);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.strength-level {
    height: 100%;
    width: 0%;
    background: var(--error);
    border-radius: 2px;
    transition: width 0.3s ease, background 0.3s ease;
}

.strength-text {
    font-size: 0.75rem;
    color: var(--gray-700);
    text-align: right;
}

/* Règles du mot de passe */
.password-rules {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--radius);
    border-left: 3px solid var(--primary);
}

.rule {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.rule:last-child {
    margin-bottom: 0;
}

.rule i {
    font-size: 0.5rem;
    color: var(--gray-400);
}

.rule.valid i {
    color: var(--success);
}

.rule.invalid i {
    color: var(--error);
}

.rule.valid span {
    color: var(--success);
    font-weight: 500;
}

/* Correspondance des mots de passe */
.password-match {
    font-size: 0.75rem;
    color: var(--error);
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transition: var(--transition);
}

.password-match.valid {
    color: var(--success);
    opacity: 1;
}

.password-match i {
    font-size: 0.875rem;
}

/* Cases à cocher */
.checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-wrapper input {
    display: none;
}

.checkbox-custom {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--gray-300);
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.checkbox-custom i {
    color: white;
    font-size: 0.75rem;
    opacity: 0;
    transition: var(--transition);
}

.checkbox-wrapper input:checked + .checkbox-custom {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-wrapper input:checked + .checkbox-custom i {
    opacity: 1;
}

.checkbox-label {
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.4;
}

.terms-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.terms-link:hover {
    text-decoration: underline;
}

.terms-group, .newsletter-group {
    margin-bottom: 1rem;
}

/* Bouton d'inscription */
.register-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    margin: 2rem 0;
}

.register-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: 0.5s;
}

.register-btn:hover:not(:disabled)::before {
    left: 100%;
}

.register-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(22, 109, 180, 0.3);
}

.register-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-icon {
    transition: var(--transition);
}

.register-btn:hover:not(:disabled) .btn-icon {
    transform: translateX(4px);
}

.btn-loading {
    display: none;
}

.register-btn.loading .btn-text,
.register-btn.loading .btn-icon {
    display: none;
}

.register-btn.loading .btn-loading {
    display: block;
}

/* Séparateur */
.separator {
    display: flex;
    align-items: center;
    margin: 2rem 0;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.separator::before,
.separator::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-300);
}

.separator span {
    padding: 0 1rem;
}

/* Connexion sociale */
.social-login {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-btn {
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    background: white;
    color: var(--dark);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
}

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

.social-btn.google:hover {
    border-color: #DB4437;
    color: #DB4437;
}

.social-btn.facebook:hover {
    border-color: #4267B2;
    color: #4267B2;
}

.social-btn.github:hover {
    border-color: #333;
    color: #333;
}

/* Note de sécurité */
.security-note {
    text-align: center;
    font-size: 0.75rem;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);
}

/* Pied de page */
.register-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

.help-text {
    text-align: center;
    font-size: 0.875rem;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.help-text a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.help-text a:hover {
    text-decoration: underline;
}

.register-footer-bottom {
    margin-top: 2rem;
    text-align: center;
    color: white;
    opacity: 0.9;
}

.copyright {
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.brand {
    font-weight: 600;
    color: white;
}

.legal {
    font-size: 0.75rem;
    opacity: 0.8;
}

.legal a {
    color: white;
    text-decoration: none;
    margin: 0 0.5rem;
    transition: var(--transition);
}

.legal a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Overlay de chargement */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
}

.spinner {
    width: 100%;
    height: 100%;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 1rem;
    color: var(--dark);
    font-weight: 500;
}

/* Animations */
@keyframes float-1 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(30px, -30px) rotate(180deg); }
}

@keyframes float-2 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-20px, 20px) rotate(-180deg); }
}

@keyframes float-3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-40px, -40px) scale(1.1); }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 640px) {
    .register-wrapper {
        padding: 1rem;
    }
    
    .register-card {
        padding: 2rem 1.5rem;
        border-radius: var(--radius-lg);
    }
    
    .social-login {
        grid-template-columns: 1fr;
    }
    
    .register-footer-bottom {
        margin-top: 1rem;
    }
}

@media (max-height: 800px) {
    .register-wrapper {
        align-items: flex-start;
        padding-top: 2rem;
    }
    
    .register-card {
        margin-top: 1rem;
        margin-bottom: 2rem;
    }
}