:root {
            --primary: #7c3aed;
            --primary-light: #8b5cf6;
            --secondary: #06b6d4;
            --success: #10b981;
            --warning: #f59e0b;
            --error: #ef4444;
            --gray-50: #f9fafb;
            --gray-100: #f3f4f6;
            --gray-200: #e5e7eb;
            --gray-600: #4b5563;
            --gray-800: #1f2937;
            --gray-900: #111827;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background: var(--gray-50);
            color: var(--gray-800);
            line-height: 1.6;
        }
        
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--secondary) 100%);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
        }
        
        .hero-title {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        
        .hero-subtitle {
            font-size: 1.125rem;
            opacity: 0.9;
        }
        
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 3rem 2rem;
        }
        
        .analyzer-panel {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--gray-200);
        }
        
        .password-input {
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--gray-200);
            border-radius: 12px;
            font-size: 1rem;
            transition: border-color 0.3s;
            margin-bottom: 2rem;
        }
        
        .password-input:focus {
            outline: none;
            border-color: var(--primary);
        }
        
        .security-shield {
            text-align: center;
            margin: 2rem 0;
        }
        
        .shield-icon {
            font-size: 4rem;
            margin-bottom: 1rem;
        }
        
        .security-level {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .strength-meter {
            background: var(--gray-200);
            border-radius: 8px;
            height: 8px;
            margin: 1rem 0;
            overflow: hidden;
        }
        
        .strength-fill {
            height: 100%;
            border-radius: 8px;
            transition: width 0.8s ease;
        }
        
        .criteria-list {
            display: grid;
            gap: 0.5rem;
            margin: 2rem 0;
        }
        
        .criterion {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem;
            background: var(--gray-50);
            border-radius: 8px;
        }
        
        .criterion.met {
            background: rgba(16, 185, 129, 0.1);
            color: var(--success);
        }
        
        .criterion.unmet {
            background: rgba(239, 68, 68, 0.1);
            color: var(--error);
        }
        
        @media (max-width: 768px) {
            .hero {
                padding: 2rem 1rem;
            }
            
            .hero-title {
                font-size: 2rem;
            }
            
            .container {
                padding: 2rem 1rem;
            }
        }