:root{--bg:#fafafa;--surface:#fff;--text:#3f3f46;--text-strong:#18181b;--border:#e4e4e7;--accent:#2563eb;--accent-soft:#2563eb14;--radius:10px;--shadow:0 1px 2px #0000000a;color:var(--text);background-color:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--bg:#0c0c0e;--surface:#141416;--text:#a1a1aa;--text-strong:#fafafa;--border:#27272a;--accent:#60a5fa;--accent-soft:#60a5fa1f;--shadow:0 1px 2px #00000059}}*,:before,:after{box-sizing:border-box}body{min-height:100dvh;margin:0}#root{min-height:100dvh}.app{flex-direction:column;max-width:720px;min-height:100dvh;margin:0 auto;padding:0 1.25rem;display:flex}.header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:1rem;padding:1.25rem 0;display:flex}.logo{letter-spacing:-.02em;color:var(--text-strong);font-size:1.125rem;font-weight:700}.nav{flex-wrap:wrap;justify-content:flex-end;gap:.75rem 1rem;display:flex}.nav a{color:var(--accent);font-size:.875rem;font-weight:500;text-decoration:none}.nav a:hover{text-decoration:underline}.main{flex:1;padding:2.5rem 0 2rem}.converter-stack{flex-direction:column;gap:1.5rem;display:flex}.converter{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);margin-top:0;padding:1.5rem}.converter-title{color:var(--text-strong);margin:0 0 .5rem;font-size:1.125rem;font-weight:600}.converter-hint{color:var(--text);max-width:52ch;margin:0 0 1.25rem;font-size:.875rem}.converter-form{flex-direction:column;gap:1rem;display:flex}.field{grid-template-rows:auto auto;grid-template-columns:1fr auto;align-items:center;column-gap:.75rem;display:grid}.field label{color:var(--text-strong);grid-column:1/-1;font-size:.8125rem;font-weight:500}.field input{width:100%;min-width:0;font:inherit;color:var(--text-strong);background:var(--bg);border:1px solid var(--border);border-radius:8px;grid-column:1;padding:.5rem .65rem;font-size:1rem}.field input:focus{outline:2px solid var(--accent);outline-offset:1px}.field .unit{color:var(--text);font-variant-numeric:tabular-nums;grid-column:2;font-size:.8125rem;font-weight:600}.converter-actions{gap:.75rem;margin-top:.25rem;display:flex}.btn-reset{font:inherit;color:var(--text-strong);background:var(--bg);border:1px solid var(--border);cursor:pointer;border-radius:8px;padding:.4rem .85rem;font-size:.875rem;font-weight:500}.btn-reset:hover{border-color:var(--accent);color:var(--accent)}.btn-reset:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.converter-aside{border-top:1px dashed var(--border);color:var(--text);margin:1rem 0 0;padding-top:1rem;font-size:.875rem}.converter-aside strong{color:var(--text-strong);font-variant-numeric:tabular-nums}.footer{border-top:1px solid var(--border);color:var(--text);opacity:.85;padding:1.25rem 0 1.75rem}.footer small{font-size:.8125rem}