:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;color:#203e37;background:#f3f6f3;font-synthesis:none}*{box-sizing:border-box}body{margin:0}header{max-width:1040px;margin:auto;padding:25px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dde5df;font-size:13px}.brand{font-weight:700;letter-spacing:.06em}.year{background:#e4eee7;border-radius:5px;padding:6px 10px;color:#356b52}main{max-width:1000px;margin:auto;padding:40px 24px 25px}.intro{margin-bottom:30px}.eyebrow{font-size:12px;color:#448275;letter-spacing:.12em;font-weight:700}h1{font-size:36px;line-height:1.4;letter-spacing:.04em;margin:12px 0}h1 br{display:none}.intro>p:last-child{font-size:14px;line-height:1.8;color:#62716b}.mobile{display:none}.layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.card{background:white;border:1px solid #dfe7df;border-radius:18px;padding:25px;box-shadow:0 5px 18px #203e3704}h2{font-size:18px;margin:0;display:flex;align-items:center;gap:9px}.step{font-size:12px;display:inline-grid;place-items:center;border:1px solid #b5cfc1;border-radius:50%;width:25px;height:25px;color:#437c63}.section-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.hint{font-size:12px;color:#68776f;line-height:1.8;margin:12px 0 18px}fieldset{border:0;padding:0;margin:24px 0}legend{font-size:14px;font-weight:700;margin-bottom:12px;line-height:1.7;padding:0}.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}label>span:first-child:not(.input-wrap){font-size:12px;color:#68776f;display:block;margin-bottom:7px}b{font-size:10px;background:#edf2ed;border-radius:3px;padding:2px 5px;font-weight:500}.input-wrap{border:1px solid #ccd7d0;border-radius:8px;display:flex;align-items:center;padding:0 12px;background:#fcfdfb;min-width:0}.input-wrap:focus-within{border-color:#176557;box-shadow:0 0 0 3px #17655718}input[type=text]{width:100%;min-width:0;border:0;background:transparent;color:#203e37;font-size:20px;text-align:right;padding:14px 7px 14px 0;outline:none;font-variant-numeric:tabular-nums}.input-wrap>span{font-size:12px;color:#67786c}.family{background:#f1f5ef;border-radius:10px;padding:16px}.family legend{float:left;width:100%;margin-bottom:0}.family .hint{clear:both;margin:0 0 12px;font-size:11px}.choices{display:flex;gap:8px}.choices label{flex:1;position:relative;cursor:pointer}.choices input{position:absolute;opacity:0}.choices span{display:block;text-align:center;background:white;border:1px solid #cad6cb;border-radius:7px;padding:11px;font-size:14px}.choices input:checked+span{background:#176557;color:white;border-color:#176557}.choices input:focus-visible+span{outline:3px solid #9fc5b5;outline-offset:2px}button{font:inherit;cursor:pointer;border:1px solid #ccd9d0;border-radius:8px;color:#285b4b;background:white;padding:11px 15px;min-height:44px}button:focus-visible,a:focus-visible{outline:3px solid #89b6a3;outline-offset:3px}.text-button{border:0;padding:0;font-size:12px;text-decoration:underline;min-width:44px}.primary{display:flex;justify-content:space-between;width:100%;background:#176557;color:white;border:0;font-size:15px;font-weight:600;padding:16px 19px}.total{margin:20px 0 26px;padding:22px;background:#eaf2e9;border-radius:12px}.total>span{font-size:13px;font-weight:600}.total>div{margin:6px 0}.total strong{font-size:42px;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.total small{font-size:11px;color:#617862}.group{margin-top:24px}.group h3{font-size:13px;margin:0 0 8px}.row{display:flex;align-items:center;gap:9px;border-bottom:1px solid #edf0eb;padding:10px 0;font-size:12px}.symbol{display:grid;place-items:center;min-width:27px;height:27px;border-radius:5px;background:#f0f4ed;font-weight:700;font-size:14px}.row .desc{color:#6b766d;font-size:11px}.row .value{margin-left:auto;white-space:nowrap;font-size:15px;font-weight:600;font-variant-numeric:tabular-nums}.row .value small{font-size:10px;font-weight:400}.row.subtotal{background:#f5f8f2;padding:10px 8px;border-radius:6px;margin-top:5px}.row.unused .value{font-size:11px;font-weight:400;color:#859087}.row.unused .symbol{color:#859087}.actions{display:flex;gap:10px}.actions button{font-size:12px;flex:1}#status{font-size:12px;margin:8px 0 0;min-height:16px;color:#397154}#error{font-size:12px;color:#a42f25;line-height:1.7}input[aria-invalid=true]{color:#a42f25}footer{font-size:11px;line-height:1.9;color:#6f7b70;margin-top:30px;text-align:center}footer a{color:#557663}footer p{margin:9px 0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:700px){header{padding:17px 20px}main{padding:25px 16px 20px}.intro{padding:0 4px;margin-bottom:22px}h1{font-size:29px}h1 br,.mobile{display:block}.layout{grid-template-columns:1fr;gap:20px}.card{padding:21px 19px;border-radius:14px}.intro>p:last-child{font-size:13px}#results{scroll-margin-top:16px}.total strong{font-size:40px}}@media print{header,.intro,.input-card,.actions,footer,#status{display:none}main{padding:0}.layout{display:block}.card{border:0;padding:0}.results{max-width:600px;margin:auto}.group{break-inside:avoid}.row{padding:5px 0}.total{margin:12px 0;padding:14px}}

/* Readable type and stronger contrast, including compact phone layouts. */
header{font-size:15px}
.eyebrow{font-size:15px;color:#285b4b}
.intro>p:last-child{font-size:17px;color:#354b41}
h2{font-size:21px}
.step{font-size:15px;width:29px;height:29px;color:#285b4b;flex-shrink:0}
.hint,.family .hint{font-size:16px;color:#354b41;line-height:1.75}
legend{font-size:18px}
label>span:first-child:not(.input-wrap){font-size:16px;color:#354b41}
b{font-size:14px;font-weight:600}
input[type=text]{font-size:24px;font-weight:600}
input[type=text]::placeholder{color:#506056;opacity:1;font-weight:400}
.input-wrap>span{font-size:16px;color:#354b41}
.choices span{font-size:18px;font-weight:600}
.text-button{font-size:16px;flex-shrink:0}
.primary{font-size:18px}
.total>span{font-size:18px}
.total small{font-size:15px;color:#354b41}
.group h3{font-size:18px}
.row{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:9px;padding:13px 0}
.symbol{font-size:18px;min-width:32px;height:32px}
.row .desc{font-size:16px;color:#354b41;line-height:1.6;overflow-wrap:anywhere}
.row .value{font-size:20px}
.row .value small{font-size:14px;color:#354b41}
.row.unused .value{font-size:16px;color:#43554a}
.row.unused .symbol{color:#43554a}
.actions button{font-size:16px}
#status,#error{font-size:16px}
footer{font-size:14px;color:#354b41}
footer a{color:#285b4b}
@media(max-width:700px){
 .intro>p:last-child{font-size:17px}
 .pair{gap:10px}
 .input-wrap{padding:0 8px}
 .family{padding:15px 12px}
 .family legend{font-size:17px}
 .row{grid-template-columns:32px minmax(0,1fr);column-gap:10px;row-gap:3px}
 .row .symbol{grid-column:1;grid-row:1 / span 2;align-self:start}
 .row .desc{grid-column:2}
 .row .value{grid-column:2;justify-self:end;font-size:22px}
 .row.unused .value{font-size:16px}
 .row.subtotal{padding:13px 8px}
}