/* === PAGE AUTHENTICATION === */

.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

/* Fond animé */
.auth-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 119, 198, 0.2) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Container principal */
.auth-container {
    width: 100%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    padding: 2.5rem;
    position: relative;
    z-index: 10;
    animation: slideInUp 0.6s ease-out;
}

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

/* Logo */
.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo img {
    max-height: 60px;
    width: auto;
}

/* Titre */
.auth-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    text-align: center;
    color: #6b7280;
    margin-bottom: 2rem;
    font-size: 0.875rem;
}

/* Formulaire */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-label {
    display: block;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
}

.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input:invalid {
    border-color: #ef4444;
}

.form-input:invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Bouton de connexion */
.auth-button {
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 0.5rem;
}

.auth-button:hover {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    transform: translateY(-1px);
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.4);
}

.auth-button:active {
    transform: translateY(0);
}

.auth-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Options supplémentaires */
.auth-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6b7280;
}

.remember-checkbox {
    width: 1rem;
    height: 1rem;
    border-radius: 0.25rem;
}

.forgot-password {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: #2563eb;
}

/* Messages d'erreur */
.auth-error {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    border: 1px solid #f87171;
    color: #991b1b;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Messages de succès */
.auth-success {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    border: 1px solid #34d399;
    color: #065f46;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Loading state */
.auth-loading {
    position: relative;
    color: transparent;
}

.auth-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1rem;
    height: 1rem;
    margin: -0.5rem 0 0 -0.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Éléments décoratifs */
.auth-decoration {
    position: absolute;
    opacity: 0.1;
    pointer-events: none;
}

.auth-decoration.top-left {
    top: -2rem;
    left: -2rem;
    width: 6rem;
    height: 6rem;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6);
    border-radius: 50%;
}

.auth-decoration.bottom-right {
    bottom: -1rem;
    right: -1rem;
    width: 4rem;
    height: 4rem;
    background: linear-gradient(45deg, #f59e0b, #ef4444);
    border-radius: 50%;
}

/* Version large du container */
.auth-container-large {
    max-width: 1000px;
    padding: 0;
    background: white;
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
}

.auth-visual {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
}

.auth-visual-content {
    position: relative;
    z-index: 10;
}

.auth-visual-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.auth-visual-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.auth-form-section {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Responsive */
@media (max-width: 768px) {
    .auth-page {
        padding: 0.5rem;
    }
    
    .auth-container {
        padding: 2rem;
    }
    
    .auth-container-large {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .auth-visual {
        display: none;
    }
    
    .auth-form-section {
        padding: 2rem;
    }
}