:root{--muted:var(--ink)}
p{color:var(--ink)}
.saving-card p{color:var(--paper)}
.fal-volume-intro{align-items:start}
.formula-line{min-height:100%;display:flex;align-items:center;padding:20px;border:2px solid var(--line);background:var(--accent);color:var(--ink);font-size:18px;font-weight:var(--weight-accent);line-height:1.35;text-decoration:none}
.formula-line:hover,.formula-line:focus-visible{text-decoration:underline}
.fal-calculator{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.75fr);gap:clamp(38px,7vw,92px);color:var(--ink);border-top:2px solid var(--line);border-bottom:2px solid var(--line)}
.calculator-controls{display:grid;align-content:start;gap:12px;padding:28px 0}
.calculator-label{color:var(--ink);font-size:15px;font-weight:var(--weight-accent)}
.calculator-controls select,.calculator-number-shell input{width:100%;min-height:58px;border:2px solid var(--line);border-radius:0;background:var(--paper);color:var(--ink);padding:12px 14px;font-weight:var(--weight-accent)}
.calculator-controls select:focus-visible,.calculator-number-shell input:focus-visible,.calculator-volume-control input[type="range"]:focus-visible{outline:4px solid var(--accent);outline-offset:3px}
.calculator-volume-control{display:grid;grid-template-columns:minmax(0,1fr) 190px;gap:22px;align-items:center}
.calculator-volume-control input[type="range"]{width:100%;accent-color:var(--ink)}
.calculator-number-shell{position:relative;display:block}
.calculator-number-shell input{padding-right:70px;font-variant-numeric:tabular-nums}
.calculator-number-shell span{position:absolute;right:14px;top:50%;color:var(--ink);font-size:13px;font-weight:var(--weight-accent);transform:translateY(-50%);pointer-events:none}
.calculator-results{padding:28px 0 28px 32px;border-left:2px solid var(--line)}
.calculator-period{display:flex;align-items:baseline;justify-content:space-between;gap:18px;color:var(--ink)}
.calculator-period strong{font-size:clamp(24px,3vw,34px);line-height:1;font-variant-numeric:tabular-nums}
.calculator-period span{color:var(--ink);font-size:14px;font-weight:var(--weight-accent);white-space:nowrap}
.calculator-results dl{margin:24px 0 0}
.calculator-results dl>div{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 12px;border-top:1px solid var(--line)}
.calculator-results dt{color:var(--ink);font-weight:var(--weight-copy)}
.calculator-results dd{margin:0;color:var(--ink);font-weight:var(--weight-accent);font-variant-numeric:tabular-nums;white-space:nowrap}
.calculator-results .volume-saving{margin-top:4px;background:var(--accent);border-top:2px solid var(--line)}
.calculator-note{margin-top:18px;color:var(--ink);font-size:14px;font-weight:var(--weight-copy)}
@media(max-width:900px){.fal-calculator{grid-template-columns:1fr;gap:0}.calculator-results{padding:26px 0;border-top:2px solid var(--line);border-left:0}}
@media(max-width:640px){.formula-line{min-height:0}.calculator-volume-control{grid-template-columns:1fr;gap:16px}.calculator-period{align-items:flex-start;flex-direction:column;gap:8px}.calculator-controls{padding:24px 0}.calculator-results{padding:24px 0}}