.calc-head{max-width:760px;margin-bottom:28px}.calc-title{margin:0 0 14px}.calc-lede{color:var(--text-2);max-width:60ch;margin:0;font-size:clamp(15px,1.6vw,17px);line-height:1.55}.calc-shell{background:var(--bg);padding:22px}@media (width>=768px){.calc-shell{padding:32px}}.calc .calc-grid{grid-template-columns:1fr;gap:32px;display:grid}@media (width>=1024px){.calc .calc-grid{grid-template-columns:minmax(0,360px) 1fr;gap:48px}}.calc .calc-form{flex-direction:column;gap:22px;display:flex}.calc .calc-row-2{grid-template-columns:1fr;gap:14px;display:grid}@media (width>=768px){.calc .calc-row-2{grid-template-columns:1fr 1fr;gap:12px}}.calc .field{flex-direction:column;gap:8px;display:flex}.calc .field-label{color:var(--text-3)}.calc .input-wrap{border:1px solid var(--line);background:var(--bg-2);align-items:stretch;transition:border-color .12s;display:flex;position:relative}.calc .input-wrap:focus-within{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:1px}.calc .input-prefix-slot{border-right:1px dashed var(--line);flex-shrink:0;align-items:stretch;display:inline-flex}.calc .currency-selector{color:var(--text-3);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;cursor:pointer;background:0 0;border:0;align-items:center;padding:0 12px;font-size:11px;transition:color .12s,background .12s;display:inline-flex}.calc .currency-selector:hover{color:var(--accent);background:var(--bg-3)}.calc .currency-selector:focus-visible{outline:1px solid var(--accent);outline-offset:-1px}.calc .input-stepper{border-left:1px dashed var(--line);flex-direction:column;flex-shrink:0;display:flex}.calc .input-stepper button{width:26px;color:var(--text-3);cursor:pointer;background:0 0;border:0;flex:1;justify-content:center;align-items:center;padding:0;font-size:9px;line-height:1;transition:color .12s,background .12s;display:flex}.calc .input-stepper button:hover{color:var(--accent);background:var(--bg-3)}.calc .input-stepper button+button{border-top:1px dashed var(--line)}.calc .input-stepper button:focus-visible{outline:1px solid var(--accent);outline-offset:-1px}.calc .field-wide{width:100%}.calc .input-suffix{color:var(--text-3);border-left:1px dashed var(--line);align-items:center;padding:0 12px;display:inline-flex}.calc .input-wrap .input{font-family:var(--font-mono);color:var(--text);background:0 0;border:0;outline:0;flex:1;padding:12px 14px;font-size:18px}.calc .input-wrap .input:focus{outline:0}.calc .presets{flex-direction:column;gap:10px;display:flex}.calc .preset-list{flex-wrap:wrap;gap:6px;display:flex}.calc .preset-eyebrow{margin:0}.calc .chip-group{flex-wrap:wrap;gap:6px;display:flex}.calc .calc-output{padding:4px 0;display:block}.calc .state-idle{flex-direction:column;gap:12px;display:flex}.calc .state-display{font-family:var(--font-sans);letter-spacing:-.02em;color:var(--text-3);margin:0;font-size:clamp(28px,5vw,42px);font-weight:500}.calc .state-help{color:var(--text-3);margin:0;font-size:14px}.calc .state-error{flex-direction:column;gap:14px;display:flex}.calc .state-display--error{color:var(--danger);max-width:40ch;font-size:clamp(20px,3vw,28px)}.calc .state-ok{flex-direction:column;gap:16px;display:flex}.calc .result-display{align-items:baseline;gap:12px;margin:8px 0 0;display:flex}.calc .result-num{font-family:var(--font-sans);letter-spacing:-.03em;color:var(--accent);font-size:clamp(48px,9vw,88px);font-weight:500;line-height:1}[data-theme=light] .calc .result-num{color:var(--text)}.calc .result-unit{color:var(--text-3);font-size:12px}.calc .result-line{margin:0}.calc .result-explainer{color:var(--text-2);max-width:56ch;margin:0;font-size:14px;line-height:1.6}.calc .sequence{border-top:1px dashed var(--line);margin-top:14px;padding-top:14px}.calc .sequence-eyebrow{margin-bottom:8px}.calc .sequence-list{gap:0;margin:0;padding:0;list-style:none;display:grid}.calc .sequence-step{border-bottom:1px dashed var(--line);grid-template-columns:60px 1fr auto;align-items:center;gap:14px;padding:8px 0;display:grid}.calc .step-num{color:var(--text-3)}.calc .step-amount{font-family:var(--font-mono);color:var(--text);font-size:14px}.calc .step-delta{font-family:var(--font-mono);color:var(--text-3);font-size:12px}.calc .sequence-note{color:var(--text-3);margin-top:12px;font-size:12px}.calc-explain{max-width:880px;margin-top:56px;padding-top:28px}.explain-head{margin-bottom:18px}.explain-grid{grid-template-columns:1fr;gap:14px;margin:0;padding:0;display:grid}@media (width>=768px){.explain-grid{grid-template-columns:200px 1fr;gap:22px 32px}}.explain-row{display:contents}.explain-row dt{color:var(--text-3)}.explain-row dd{color:var(--text-2);margin:0 0 14px;font-size:14px;line-height:1.6}@media (width>=768px){.explain-row dd{margin:0}}.explain-row code{font-family:var(--font-mono);background:var(--bg-2);border:1px solid var(--line);color:var(--accent);padding:4px 8px;font-size:13px}@media (width<=767px){.calc .chip{min-height:44px}.calc .input-stepper{flex-direction:row}.calc .input-stepper button{width:44px;min-height:44px;font-size:11px}.calc .input-stepper button+button{border-top:0;border-left:1px dashed var(--line)}.calc .currency-selector{min-height:44px}}