:root{color-scheme:light dark;--bg: #0f172a;--panel: #111827;--panel-2: #1f2937;--border: #334155;--text: #e5e7eb;--muted: #94a3b8;--accent: #f59e0b;--err: #f87171;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 600px at 20% -10%,#1e293b 0%,var(--bg) 60%);color:var(--text);min-height:100vh}main{max-width:860px;margin:0 auto;padding:2.5rem 1.25rem 4rem;display:grid;gap:1.25rem}header h1{margin:0 0 .4rem;font-size:1.9rem;letter-spacing:-.01em}header p{margin:0;color:var(--muted)}.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:1.25rem 1.25rem 1.4rem;box-shadow:0 10px 30px #00000040}.card h2{margin:0 0 .9rem;font-size:1.1rem;color:var(--accent)}.hint{margin:0 0 .75rem;color:var(--muted);font-size:.9rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.75rem 1rem}label{display:grid;gap:.3rem;font-size:.85rem;color:var(--muted)}input[type=number],textarea{background:var(--panel-2);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:.55rem .7rem;font:inherit;width:100%}textarea{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9rem;resize:vertical}input:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}.result{margin-top:1rem;padding:.85rem 1rem;background:var(--panel-2);border:1px dashed var(--border);border-radius:10px;display:flex;justify-content:space-between;align-items:baseline;gap:1rem}.result strong{font-size:1.3rem;color:var(--accent)}.output{margin-top:1rem}table{width:100%;border-collapse:collapse;font-size:.92rem}thead th{text-align:left;color:var(--muted);font-weight:500;padding:.4rem .6rem;border-bottom:1px solid var(--border)}tbody td{padding:.5rem .6rem;border-bottom:1px solid rgba(51,65,85,.5);vertical-align:top}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;color:#fde68a}.err{color:var(--err)}.muted{color:var(--muted)}footer{color:var(--muted);font-size:.9rem}details summary{cursor:pointer;color:var(--accent)}details p{margin-top:.5rem;line-height:1.5}