.calc{background:var(--tm-bg-elevated);border-radius:var(--tm-radius-lg);box-shadow:var(--tm-shadow-2);overflow:hidden;position:relative}.calc,.calc *{min-width:0}.calc-head{background:var(--tm-primary);color:#fff;padding:14px 24px 26px;border-radius:0 0 32px 32px;margin-bottom:-16px;position:relative}.calc-head .tm-eyebrow{color:#fff}.calc-head h2{color:#fff;margin-top:2px}.calc-body{padding:32px 24px 24px;display:grid;gap:20px;position:relative;background:var(--tm-bg-elevated)}.field{display:grid;gap:6px}.field label{font-size:13px;font-weight:var(--tm-weight-bold);color:var(--tm-grey-800)}.field-help{font-size:12px;color:var(--tm-fg-muted)}.field-input{display:flex;align-items:center;height:56px;gap:8px;padding:0 14px;border:1.5px solid var(--tm-outline-soft);border-radius:var(--tm-radius-md);background:#fff;transition:border-color .15s,box-shadow .15s}.field-input:focus-within{border-color:var(--tm-primary);box-shadow:0 0 0 3px var(--tm-blue-100)}.field-input input{flex:1 1 0;width:100%;border:0;outline:0;background:transparent;padding:0;font:inherit;font-size:20px;font-weight:var(--tm-weight-bold);color:var(--tm-fg);font-variant-numeric:tabular-nums}.field-input .unit{color:var(--tm-fg-muted);font-weight:var(--tm-weight-bold);font-size:14px;flex-shrink:0}.field.derived .field-input{background:var(--tm-blue-50);border-color:var(--tm-blue-200)}.bidir{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:12px;align-items:end}.bidir .field-input{padding:0 12px}.bidir-swap{width:36px;height:36px;margin-bottom:8px;border-radius:50%;border:1.5px solid var(--tm-outline-soft);background:#fff;color:var(--tm-primary);display:grid;place-items:center;cursor:pointer;transition:background .15s,border-color .15s}.bidir-swap:hover{background:var(--tm-blue-50);border-color:var(--tm-primary)}.result{margin-top:4px;padding:18px 20px;background:var(--tm-blue-50);border:1.5px solid var(--tm-blue-200);border-radius:var(--tm-radius-md)}.result-label{font-size:12px;font-weight:var(--tm-weight-bold);letter-spacing:.08em;text-transform:uppercase;color:var(--tm-blue-700);margin-bottom:2px}.result-value{font-size:36px;font-weight:var(--tm-weight-black);color:var(--tm-blue-900);line-height:1.1;letter-spacing:-.01em;font-variant-numeric:tabular-nums}.result-unit{font-size:18px;font-weight:var(--tm-weight-bold);margin-left:6px}.result-sub{font-size:13px;color:var(--tm-grey-700);margin-top:6px}.formula{background:var(--tm-grey-100);border-radius:var(--tm-radius-sm);padding:12px 14px;font-size:13px;display:grid;gap:4px}.formula-row{display:flex;gap:8px;align-items:baseline;font-variant-numeric:tabular-nums}.formula-row .lhs{font-weight:var(--tm-weight-bold);color:var(--tm-grey-800);flex-shrink:0}.formula-row .rhs{color:var(--tm-grey-700)}.formula-row.eval .rhs{font-family:var(--tm-font-mono);color:var(--tm-grey-900)}.rounding{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;background:var(--tm-success-bg);border-radius:var(--tm-radius-md)}.rounding-check{color:var(--tm-success);flex-shrink:0;margin-top:2px}.rounding-strong{font-weight:var(--tm-weight-bold);color:var(--tm-grey-900);font-size:14px}.rounding-sub{font-size:13px;color:var(--tm-grey-700)}.rounding-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.opt{border:1.5px solid var(--tm-outline-soft);border-radius:var(--tm-radius-md);padding:12px 14px}.opt.preferred{border-color:var(--tm-blue);background:var(--tm-blue-50)}.opt-label{font-size:11px;font-weight:var(--tm-weight-bold);text-transform:uppercase;letter-spacing:.06em;color:var(--tm-grey-700)}.opt-value{font-size:18px;font-weight:var(--tm-weight-black);color:var(--tm-grey-900);margin:4px 0;font-variant-numeric:tabular-nums}.opt-note{font-size:12px;color:var(--tm-grey-700)}.validate{border:1.5px solid var(--tm-blue-100);border-radius:var(--tm-radius-md);overflow:hidden}.validate-head{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--tm-blue-50)}.badge{font-size:11px;font-weight:var(--tm-weight-bold);letter-spacing:.04em;color:var(--tm-on-primary);background:var(--tm-primary);padding:2px 8px;border-radius:var(--tm-radius-full)}.validate-title{font-weight:var(--tm-weight-bold)}.validate-body{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0;padding:14px;font-size:13px}.validate-body dt{color:var(--tm-grey-700)}.validate-body dd{margin:0;color:var(--tm-grey-900);font-weight:var(--tm-weight-bold)}.validate-foot{padding:0 14px 14px;font-size:12px;color:var(--tm-fg-muted)}.copy{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:var(--tm-weight-bold);font-size:13px;color:var(--tm-primary);background:#fff;border:1.5px solid var(--tm-outline-soft);border-radius:var(--tm-radius-md);padding:8px 12px;cursor:pointer}.btn:hover{border-color:var(--tm-primary);background:var(--tm-blue-50)}.copy-url{flex:1;min-width:0;font-size:12px;color:var(--tm-grey-700);background:var(--tm-grey-100);padding:6px 10px;border-radius:var(--tm-radius-sm);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.calc-host .calc-body{grid-template-columns:1fr 1fr;column-gap:20px;row-gap:20px;padding-left:32px;padding-right:32px}.calc-host .calc-body>:not(.field){grid-column:1 / -1}.calc-host .calc-head{padding-left:32px;padding-right:32px}.calc-host .result-value{font-size:44px}.calc-host .result{padding:22px 24px}@media(max-width:540px){.bidir{grid-template-columns:1fr}.bidir-swap{margin:0 auto;transform:rotate(90deg)}.formula-row{flex-direction:column;gap:2px}.rounding-options{grid-template-columns:1fr}.calc-host .calc-body{grid-template-columns:1fr;padding-left:18px;padding-right:18px}.calc-host .calc-head,.calc-body{padding-left:18px;padding-right:18px}.validate-body{grid-template-columns:1fr;gap:2px 0}.result-value{font-size:30px}.calc-host .result-value{font-size:32px}}