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