:root{--primary: #004080;--accent: #2080A0;--text: #333;--text-light: #666;--bg: #f5f7fa;--white: #fff;--border: #e0e0e0;--success: #28a745}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:40px 20px}.header{text-align:center;margin-bottom:40px}.logo{height:120px;margin-bottom:16px}.header h1{font-size:2.5rem;color:var(--primary);margin-bottom:8px}.brand-logo{font-size:2.5rem;font-weight:700;color:var(--primary);letter-spacing:-.5px}.brand-accent{color:var(--accent);font-weight:400;margin-left:4px}.tagline{font-size:1.25rem;color:var(--text-light)}.plans-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-bottom:40px;align-items:stretch}.plan-card{background:var(--white);border-radius:12px;padding:32px;box-shadow:0 2px 8px #00000014;border:2px solid transparent;transition:all .2s ease;position:relative;display:flex;flex-direction:column}.plan-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.plan-card.featured{border-color:var(--accent)}.plan-card.featured:before{content:"Most Popular";position:absolute;top:-12px;left:50%;transform:translate(-50%);background:var(--accent);color:var(--white);padding:4px 16px;border-radius:20px;font-size:.75rem;font-weight:600;text-transform:uppercase}.plan-name{font-size:1.5rem;font-weight:700;color:var(--primary);margin-bottom:8px;min-height:3.6rem;display:flex;align-items:center}.plan-description{color:var(--text-light);font-size:.9rem;margin-bottom:16px;min-height:40px}.license-selector{margin-bottom:16px}.license-selector label{display:block;font-size:.85rem;font-weight:600;color:var(--text-light);margin-bottom:6px}.license-selector select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-size:.95rem;background:var(--white);color:var(--text);cursor:pointer}.license-selector select:focus{outline:none;border-color:var(--accent)}.plan-price{font-size:2rem;font-weight:700;color:var(--text);margin-bottom:24px}.selected-license{text-align:center;color:var(--accent);font-weight:500;margin-bottom:16px}.plan-features{list-style:none;margin-bottom:24px;flex-grow:1}.plan-features li{padding:8px 0;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}.plan-features li:before{content:"✓";color:var(--success);font-weight:700}.btn{display:inline-block;padding:14px 28px;border-radius:8px;font-size:1rem;font-weight:600;text-decoration:none;border:none;cursor:pointer;transition:all .2s ease;width:100%;text-align:center}.btn-primary{background:var(--accent);color:var(--white)}.btn-primary:hover{background:var(--primary)}.btn-secondary{background:var(--bg);color:var(--text);margin-top:12px}.btn-lg{padding:16px 32px;font-size:1.125rem}.checkout-form{background:var(--white);border-radius:12px;padding:40px;max-width:500px;margin:0 auto 40px;box-shadow:0 2px 8px #00000014}.checkout-form h2{color:var(--primary);margin-bottom:24px;text-align:center}.form-group{margin-bottom:20px}.form-group label{display:block;font-weight:600;margin-bottom:6px;color:var(--text)}.form-group input{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:6px;font-size:1rem}.form-group input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #2080a01a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.hidden{display:none!important}.loading{text-align:center;padding:40px;color:var(--text-light)}.error{background:#fee;color:#c00;padding:16px;border-radius:8px;margin-bottom:20px;text-align:center}.footer{text-align:center;color:var(--text-light);font-size:.875rem}.footer a{color:var(--accent)}@media (max-width: 768px){.form-row{grid-template-columns:1fr}.header h1{font-size:2rem}.plan-price{font-size:1.5rem}}