:root {
    --primary-color: #2E7D32;
    --secondary-color: #4CAF50;
    --accent-color: #FF9800;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --danger-color: #F44336;
    --info-color: #2196F3;
    --light-color: #F8F9FA;
    --dark-color: #2C3E50;
    --gradient-primary: linear-gradient(135deg, #2E7D32 0%, #4CAF50 100%);
    --gradient-secondary: linear-gradient(135deg, #FF9800 0%, #FFB74D 100%);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #E8F5E8 0%, #F1F8E9 100%);
    min-height: 100vh;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.card {
    border: none;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.method-card {
    cursor: pointer;
    border: 2px solid transparent;
    background: white;
}

.method-card:hover {
    border-color: var(--primary-color);
    background: var(--light-color);
}

.method-card.selected {
    border-color: var(--primary-color);
    background: var(--light-color);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.progress {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.2);
}

.progress-bar {
    background: var(--gradient-secondary);
    border-radius: 3px;
}

.form-control, .form-select {
    border: 2px solid #E0E0E0;
    border-radius: 8px;
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.password-strength {
    height: 4px;
    border-radius: 2px;
    margin-top: 8px;
    transition: all 0.3s ease;
}

.strength-weak { background: var(--danger-color); }
.strength-medium { background: var(--warning-color); }
.strength-strong { background: var(--success-color); }

.hero-section {
    background: var(--gradient-primary);
    color: white;
    padding: 80px 0;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2rem;
}

.toast {
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.toast-success {
    background: var(--success-color);
    color: white;
}

.toast-error {
    background: var(--danger-color);
    color: white;
}

.toast-warning {
    background: var(--warning-color);
    color: white;
}

.toast-info {
    background: var(--info-color);
    color: white;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0;
    }
    
    .card-body {
        padding: 1.5rem;
    }
}