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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --border-focus: #3b82f6;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --radius-lg: 12px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    line-height: 1.6;
}

.container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1200px;
    width: 100%;
    background: var(--card-background);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    min-height: 600px;
}

.login-wrapper {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}

.logo i {
    font-size: 32px;
    color: var(--primary-color);
}

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.login-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group label i {
    color: var(--text-secondary);
    width: 16px;
}

.form-group input {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    transition: all 0.2s ease;
    background: #ffffff;
}

.form-group input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.form-group input::placeholder {
    color: var(--text-secondary);
}

.password-input {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s ease;
}

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

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 8px 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 14px;
}

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

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: white;
    font-size: 11px;
    font-weight: bold;
}

.forgot-password {
    font-size: 14px;
}

.login-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 8px;
}

.login-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.login-btn.loading .btn-text {
    opacity: 0;
}

.loading-spinner {
    position: absolute;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.login-btn.loading .loading-spinner {
    opacity: 1;
}

.divider {
    display: flex;
    align-items: center;
    margin: 24px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.divider span {
    padding: 0 16px;
}

.social-login {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 12px 24px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    background: white;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.social-btn:hover {
    border-color: var(--text-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.login-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 14px;
}

.link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.error-message {
    color: var(--error-color);
    font-size: 12px;
    margin-top: 4px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.error-message.show {
    opacity: 1;
}

.alert {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 16px 20px;
    max-width: 400px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.alert.show {
    transform: translateX(0);
}

.alert-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert.success {
    border-left: 4px solid var(--success-color);
}

.alert.error {
    border-left: 4px solid var(--error-color);
}

.alert.success .alert-icon::before {
    content: '✓';
    color: var(--success-color);
}

.alert.error .alert-icon::before {
    content: '✕';
    color: var(--error-color);
}

.alert-text {
    font-size: 14px;
    color: var(--text-primary);
}

/* Section d'accueil */
.welcome-section {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: white;
}

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

.welcome-content h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    line-height: 1.3;
}

.welcome-content > p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.6;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
    color: #60a5fa;
}

.stat-label {
    font-size: 12px;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.testimonial {
    background: rgba(255, 255, 255, 0.1);
    padding: 24px;
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.testimonial-content {
    position: relative;
}

.testimonial-content i {
    font-size: 20px;
    color: #60a5fa;
    margin-bottom: 12px;
}

.testimonial-content p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar i {
    font-size: 16px;
    color: white;
}

.author-info {
    text-align: left;
}

.author-name {
    font-weight: 600;
    font-size: 14px;
}

.author-title {
    font-size: 12px;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        margin: 10px;
    }
    
    .welcome-section {
        order: -1;
        padding: 30px 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .login-wrapper {
        padding: 30px 20px;
    }
    
    .logo h1 {
        font-size: 24px;
    }
    
    .login-header h2 {
        font-size: 20px;
    }
    
    .welcome-content h3 {
        font-size: 24px;
    }
    
    .form-options {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-wrapper {
        padding: 20px;
    }
    
    .welcome-section {
        padding: 20px;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .testimonial {
        padding: 20px;
    }
}