:root{color-scheme:light;--bg: #f5f7fb;--card: #ffffff;--text: #1f2937;--muted: #6b7280;--accent: #0f766e;--accent-2: #115e59;--border: #d1d5db}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:linear-gradient(180deg,#f8fafc 0%,var(--bg) 100%);color:var(--text)}.container{max-width:900px;margin:40px auto;padding:0 16px}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:0 8px 24px #0f172a0f}h1{margin:0 0 8px;font-size:1.7rem}p{margin:0 0 20px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:16px}label{display:block;font-size:.92rem;margin-bottom:6px;color:#374151}input,select,button{width:100%;font:inherit}input,select{padding:10px;border-radius:10px;border:1px solid var(--border);background:#fff}button{border:none;border-radius:10px;padding:12px;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}button:hover:not(:disabled){background:var(--accent-2)}.progress{margin:14px 0;font-size:.95rem;color:#374151}.results{margin-top:20px}.result-item{display:flex;justify-content:space-between;gap:12px;align-items:center;border:1px solid var(--border);border-radius:10px;padding:10px;margin-bottom:8px;font-size:.92rem}a{color:#0b5cab;text-decoration:none}a:hover{text-decoration:underline}.error{color:#b91c1c;margin-top:10px}