:root{
  --bg:#0b1220; --bg2:#162447; --panel:rgba(18,27,46,.85); --card:rgba(18,27,46,.7);
  --muted:#a9b4cc; --text:#eef2ff; --accent:#6ee7ff; --border:rgba(255,255,255,.10); --input:#0f1830;
}
:root[data-theme="light"]{
  --bg:#f7f9ff; --bg2:#e9efff; --panel:rgba(255,255,255,.92); --card:rgba(255,255,255,.9);
  --muted:#4a5876; --text:#0b1220; --accent:#0066ff; --border:rgba(11,18,32,.12); --input:#f1f4ff;
}
*{box-sizing:border-box}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;background:radial-gradient(1200px 700px at 20% 0%,var(--bg2) 0%,var(--bg) 60%);color:var(--text)}
.container{max-width:1200px;margin:0 auto;padding:24px}
.header{margin-bottom:12px}
.headerRow{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
h1{margin:0 0 6px;font-size:30px}
.sub{margin:0;color:var(--muted)}
.homeLink{text-decoration:none;color:inherit}

.themeToggle{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--panel);color:var(--text);padding:10px 12px;border-radius:12px;cursor:pointer}
.themeText{font-size:13px;color:var(--muted)}

.adSlot{margin:14px 0}
.adPlaceholder{border:1px dashed color-mix(in srgb, var(--muted) 55%, transparent);border-radius:14px;padding:16px;color:var(--muted);background:color-mix(in srgb, var(--panel) 50%, transparent);text-align:center;font-size:13px}

.layout{display:grid;grid-template-columns:420px 1fr;gap:16px;align-items:start}
.controls{position:sticky;top:16px}
.output{max-height:80vh;overflow:auto}
@media(max-width:900px){.layout{grid-template-columns:1fr}.controls{position:static}.output{max-height:none;overflow:visible}}

.panel{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:16px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;margin-top:12px}
.rowCompact{align-items:center}
label{display:flex;flex-direction:column;gap:6px;min-width:220px;flex:1;color:var(--muted);font-size:14px}
.precisionLabel{min-width:260px;flex:0 0 260px}
.precisionHint{color:var(--muted);font-size:13px;flex:2;min-width:260px}
select,input[type="number"]{width:100%;padding:12px;border-radius:12px;border:1px solid var(--border);background:var(--input);color:var(--text);outline:none}
.valueBox{display:flex;gap:10px;align-items:center}
.badge{display:inline-flex;align-items:center;justify-content:center;min-width:72px;padding:10px 12px;border-radius:12px;border:1px solid var(--border);background:color-mix(in srgb, var(--accent) 10%, transparent);color:var(--accent)}
input[type="range"]{width:100%;accent-color:var(--accent)}
.sliderMeta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:6px}
.hint{color:var(--muted);font-size:13px;flex:2;min-width:260px}

.resultsHeader{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}
h2{margin:0;font-size:18px}
.meta{color:var(--muted);font-size:13px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(220px,1fr));gap:12px}
.grid.oneCol{grid-template-columns:1fr}
@media(max-width:1100px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px}
.unitName{color:var(--muted);font-size:13px;margin-bottom:6px}
.unitValue{font-size:18px;font-weight:650;letter-spacing:.2px;text-align:right;font-variant-numeric:tabular-nums}
.note{margin-top:12px;color:var(--muted);font-size:12.5px}
.footer{margin-top:18px;color:var(--muted);text-align:center}

.contextWrap{margin-bottom:14px}

.footerLinks{margin-top:14px}
.footerLinks h2{font-size:16px;margin:0 0 10px}
.footerLinks .cols{columns:2;column-gap:28px}
@media(max-width:900px){.footerLinks .cols{columns:1}}
.footerLinks ul{margin:0;padding-left:18px}
.footerLinks a{color:color-mix(in srgb, var(--accent) 90%, var(--text));text-decoration:none}
.footerLinks a:hover{text-decoration:underline}