:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--bg: #f5f7fb;--card: #fff;--accent: #2196F3}*{box-sizing:border-box}body,html,#root{height:100%;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;background:var(--bg);color:#222}.app{display:flex;align-items:center;justify-content:center;padding:24px}.container{width:100%;max-width:820px;background:transparent}h1{margin:0 0 12px;font-size:22px;color:#222}.input{width:100%;padding:10px;border-radius:8px;border:1px solid #d0d7de;margin-top:6px;font-size:16px}.card{background:var(--card);border-radius:12px;padding:16px;margin-top:16px;box-shadow:0 6px 18px #1414140f}.countdown{font-size:36px;font-weight:700;text-align:center}.timer{font-size:22px;font-weight:700;margin:6px 0}.buttons{margin-top:16px;display:flex;gap:12px}.btn{padding:12px 20px;border-radius:8px;border:none;cursor:pointer;font-weight:600}.btn.primary{background:var(--accent);color:#fff}.resultsGrid{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.resultItem{background:#fff;padding:10px;border-radius:8px;width:calc(50% - 6px);box-shadow:0 2px 6px #0000000a}.label{color:#666;font-size:14px}.value{font-size:20px;font-weight:700;margin-top:6px}