:root{--ozon-blue:#005bff;--ozon-magenta:#f91155;--ozon-bg-light:#fff;--ozon-bg-dark:#1a1a1a;--ozon-border:#e5e5e5;--ozon-text-primary:#001a34;--ozon-text-secondary:#808d9a}*{box-box-sizing:border-box;margin:0;padding:0}body{background-color:var(--ozon-bg-light);color:var(--ozon-text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.ozon-button{background-color:var(--ozon-blue);color:#fff;cursor:pointer;border:none;border-radius:12px;padding:12px 24px;font-size:16px;font-weight:600;transition:opacity .2s}.ozon-button:active{opacity:.8}.container{max-width:600px;margin:0 auto;padding:20px}.card{border:1px solid var(--ozon-border);border-radius:16px;margin-bottom:16px;padding:20px}