/* ===== AUTHENTIFICATION STYLES - DESIGN ULTRA MODERNE ===== */

/* Variables CSS - Même charte graphique que index */
:root {
    /* Couleurs principales */
    --primary: #FFD700;
    --primary-dark: #FFB300;
    --secondary: #1a1a1a;
    --accent: #FF6B35;
    
    /* Couleurs de fond */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --bg-card: #1e1e1e;
    
    /* Couleurs de texte */
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;
    
    /* Couleurs d'état */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Ombres et effets */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Bordures */
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== ANIMATIONS GLOBALES ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===== CONTAINER PRINCIPAL ===== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    position: relative;
    background: var(--bg-primary);
    overflow: hidden;
}

/* Particules animées en arrière-plan */
.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

.auth-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="0.5" fill="%23ffffff" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

/* ===== CARTE PRINCIPALE ===== */
.auth-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 215, 0, 0.1);
    max-width: 450px;
    width: 100%;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
    z-index: 10;
}

/* Bordure animée */
.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
}

/* Effet de brillance */
.auth-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 70%
    );
    transform: rotate(45deg);
    animation: slideInLeft 2s ease-out;
    pointer-events: none;
}

/* ===== HEADER ===== */
.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.auth-logo {
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 1px;
}

.logo-main {
    color: var(--primary);
}

.logo-sub {
    color: var(--text-primary);
    margin-left: 4px;
}

.auth-header h2 {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.5px;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 1.08rem;
    margin-bottom: 0.5rem;
}

/* ===== MESSAGES ===== */
.auth-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(239, 68, 68, 0.1));
    color: #FEE2E2;
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--border-radius);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    font-weight: 600;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.2);
    animation: fadeInUp 0.5s ease-out;
}

.auth-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(16, 185, 129, 0.1));
    color: #D1FAE5;
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--border-radius);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    font-weight: 600;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
    animation: fadeInUp 0.5s ease-out;
}

/* ===== FORMULAIRE ===== */
.auth-form {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

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

.form-group input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

/* ===== OPTIONS ===== */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.checkbox-label:hover {
    color: var(--primary);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 215, 0, 0.4);
    border-radius: 6px;
    position: relative;
    transition: all var(--transition-fast);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.checkbox-label:hover .checkmark {
    border-color: var(--primary);
    background: rgba(255, 215, 0, 0.1);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--secondary);
    font-size: 12px;
    font-weight: bold;
}

.forgot-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.forgot-link:hover {
    color: var(--accent);
    background: rgba(255, 215, 0, 0.1);
    transform: translateY(-1px);
}

/* ===== BOUTON PRINCIPAL ===== */
.btn-auth {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #000;
    border: none;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.8s ease-out 0.8s both;
}



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

.btn-auth svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.btn-auth:hover svg {
    transform: translateX(3px);
}

/* ===== DIVISEUR ===== */
.auth-divider {
    position: relative;
    text-align: center;
    margin: var(--spacing-xl) 0;
    animation: fadeInUp 0.8s ease-out 1s both;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.auth-divider span {
    background: var(--bg-card);
    padding: 0 var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== SWITCH ===== */
.auth-switch {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 1.2s both;
}

.auth-switch p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.switch-btn {
    background: none;
    border: none;
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    transition: color var(--transition-fast);
    text-decoration: underline;
}

.switch-btn:hover {
    color: var(--primary-dark);
}

/* ===== RETOUR ===== */
.auth-back {
    text-align: center;
    animation: fadeInUp 0.8s ease-out 1.4s both;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--text-primary);
}

.back-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.back-link:hover svg {
    transform: translateX(-3px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .auth-container {
        padding: var(--spacing-md);
    }
    
    .auth-card {
        padding: var(--spacing-2xl);
        max-width: 100%;
    }
    
    .auth-header h2 {
        font-size: 2rem;
    }
    
    .auth-header p {
        font-size: 1rem;
    }
    
    .logo-main {
        font-size: 2rem;
    }
    
    .logo-sub {
        font-size: 1.5rem;
    }
    
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    .auth-form input {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.95rem;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .checkbox-label {
        font-size: 0.85rem;
    }
    
    .forgot-link {
        font-size: 0.85rem;
    }
    
    .btn-auth {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
    }
    
    .auth-divider span {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-md);
    }
    
    .auth-switch p {
        font-size: 0.9rem;
    }
    
    .switch-btn {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-md);
    }
    
    .back-link {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .auth-container {
        padding: var(--spacing-sm);
    }
    
    .auth-card {
        padding: var(--spacing-xl);
    }
    
    .auth-header h2 {
        font-size: 1.8rem;
    }
    
    .auth-header p {
        font-size: 0.9rem;
    }
    
    .logo-main {
        font-size: 1.8rem;
    }
    
    .logo-sub {
        font-size: 1.3rem;
    }
    
    .form-group label {
        font-size: 0.85rem;
    }
    
    .auth-form input {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .checkbox-label {
        font-size: 0.8rem;
    }
    
    .forgot-link {
        font-size: 0.8rem;
    }
    
    .btn-auth {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.95rem;
    }
    
    .auth-divider span {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .auth-switch p {
        font-size: 0.85rem;
    }
    
    .switch-btn {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .back-link {
        font-size: 0.8rem;
    }
}

@media (max-width: 360px) {
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    .auth-header h2 {
        font-size: 1.6rem;
    }
    
    .auth-header p {
        font-size: 0.85rem;
    }
    
    .logo-main {
        font-size: 1.6rem;
    }
    
    .logo-sub {
        font-size: 1.2rem;
    }
    
    .form-group label {
        font-size: 0.8rem;
    }
    
    .auth-form input {
        padding: var(--spacing-xs);
        font-size: 0.85rem;
    }
    
    .checkbox-label {
        font-size: 0.75rem;
    }
    
    .forgot-link {
        font-size: 0.75rem;
    }
    
    .btn-auth {
        padding: var(--spacing-xs);
        font-size: 0.9rem;
    }
    
    .auth-divider span {
        font-size: 0.75rem;
        padding: var(--spacing-xs);
    }
    
    .auth-switch p {
        font-size: 0.8rem;
    }
    
    .switch-btn {
        font-size: 0.8rem;
        padding: var(--spacing-xs);
    }
    
    .back-link {
        font-size: 0.75rem;
    }
}

/* ===== ANIMATIONS SPÉCIALES ===== */
@media (prefers-reduced-motion: no-preference) {
    .auth-card:hover {
        transform: translateY(-5px);
        box-shadow: 
            0 30px 60px rgba(0, 0, 0, 0.3),
            0 0 0 1px rgba(255, 255, 255, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
    
    .form-group input:focus {
        animation: pulse 0.3s ease-out;
    }
    
    .btn-auth:active {
        animation: pulse 0.2s ease-out;
    }
}

/* ===== MODE SOMBRE FORCÉ ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #0A0A0A;
        --bg-tertiary: #1A1A1A;
    }
}

/* ===== ACCESSIBILITÉ ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible pour l'accessibilité */
.btn-auth:focus-visible,
.auth-form input:focus-visible,
.forgot-link:focus-visible,
.switch-btn:focus-visible,
.back-link:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Styles compacts pour la page de login */
.auth-container.compact {
    padding: 0;
    min-height: 100vh;
    align-items: flex-start;
    justify-content: center;
}
.auth-card.compact {
    padding: var(--spacing-xl) var(--spacing-lg);
    max-width: 350px;
    margin-top: 6vh;
    min-height: unset;
}
.auth-header.compact {
    margin-bottom: var(--spacing-lg);
}
.auth-logo.compact {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}
.auth-header.compact h2 {
    font-size: 1.3rem;
    margin-bottom: 0.2rem;
}
.auth-form.compact {
    gap: var(--spacing-sm);
}
.form-group.compact {
    margin-bottom: var(--spacing-sm);
}
.form-group.compact label {
    font-size: 0.98rem;
}
.form-group.compact input {
    padding: 0.5rem 0.8rem;
    font-size: 1rem;
}
.form-options.compact {
    flex-direction: row;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}
.checkbox-label.compact {
    font-size: 0.95rem;
}
.forgot-link.compact {
    font-size: 0.95rem;
}
.btn-auth.compact {
    padding: 0.7rem 0;
    font-size: 1.08rem;
    margin-top: var(--spacing-sm);
}
.auth-switch.compact {
    margin-top: var(--spacing-md);
    text-align: center;
}
.switch-btn.compact {
    font-size: 1rem;
    padding: 0.3rem 0.8rem;
}
.auth-back.compact {
    margin-top: var(--spacing-md);
    text-align: center;
}
.back-link.compact {
    font-size: 0.98rem;
    padding: 0.2rem 0.5rem;
}
@media (max-width: 480px) {
    .auth-card.compact {
        padding: var(--spacing-lg) var(--spacing-md);
        max-width: 98vw;
        margin-top: 2vh;
    }
}