:root{--primary: #f97316;--bg: #f8fafc;--surface: #ffffff;--text: #0f172a}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.container{max-width:600px;margin:0 auto;padding:20px}.header{text-align:center;padding:40px 0}.header h1{color:var(--primary);font-size:2.5rem;margin-bottom:8px}.product-card{background:var(--surface);border-radius:16px;padding:40px 24px;box-shadow:0 10px 15px -3px #0000001a;text-align:center}.product-card h2{margin-bottom:8px;font-size:1.8rem}.product-card p{color:#64748b;margin-bottom:24px;line-height:1.5}.price{font-size:2rem;font-weight:900;margin-bottom:32px;color:var(--primary)}.btn{background:var(--primary);color:#fff;border:none;padding:18px 32px;border-radius:12px;font-size:1.2rem;font-weight:700;cursor:pointer;width:100%;transition:all .2s;box-shadow:0 4px 6px -1px var(--primary)}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px var(--primary)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}