/* Styles spécifiques pour la page de login */

.login-page {
    background: var(--background-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-hover);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.6s ease-out;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.login-logo:hover {
    transform: scale(1.05);
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--text-light);
    font-size: 0.95rem;
    font-weight: 400;
}

.login-form {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    background: white;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
    transform: translateY(-1px);
}

.form-group input::placeholder {
    color: #a0a8b0;
}

.login-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, #1e4a8c, #3b7bc9);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 2px solid white;
    animation: spin 1s linear infinite;
}

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

.error-message {
    background: #fee7e7;
    color: #d63031;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-top: 1rem;
    border: 1px solid #fbb5b5;
    animation: fadeIn 0.3s ease-out;
}

.login-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.login-footer p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.login-footer a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.login-footer a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .login-header h1 {
        font-size: 1.75rem;
    }
    
    .login-logo {
        width: 56px;
        height: 56px;
    }
}

/* Focus states améliorés pour l'accessibilité */
.login-btn:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

.form-group input:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* États de validation */
.form-group input:valid {
    border-color: var(--accent-color);
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: #d63031;
}

/* Animation du logo */
.login-logo {
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* Effet de particules en arrière-plan (optionnel) */
.login-page::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}