:root{font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:#192f30;background:#f3f5f4;font-synthesis:none;--ink:#142b2b;--muted:#5e6e6e;--lime:#d7f570;--line:#d9e0dc}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}button:focus-visible,summary:focus-visible{outline:3px solid #55770e;outline-offset:5px}.site-header{height:104px;max-width:1200px;margin:auto;padding:0 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:800;letter-spacing:.06em}.brand-mark{background:var(--ink);color:var(--lime);width:41px;height:41px;border-radius:50%;font:36px/41px Arial;text-align:center}.brand small{display:block;font-size:10px;letter-spacing:.18em;line-height:1.8}.felix{font-family:Arial,sans-serif;font-weight:900;font-style:italic;font-size:26px;letter-spacing:-1px}.felix span{display:block;text-align:right;font-size:9px;font-weight:600;font-style:normal;letter-spacing:3px}main{max-width:1056px;margin:auto;padding:53px 36px 42px}.eyebrow{font:700 12px/1.5 Arial,sans-serif;letter-spacing:.2em;color:#52715e}.intro h1{font-size:34px;letter-spacing:.02em;line-height:1.55;margin:9px 0 7px;font-weight:800}.intro p{font-size:15px;color:var(--muted);margin:0}.mobile-break{display:none}.calculator{display:grid;grid-template-columns:1.1fr 1fr;margin-top:30px;background:white;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 12px 45px #132d2810}.input-panel{padding:35px 38px 32px}fieldset{padding:0;margin:0;border:0;min-width:0}legend,.stats-field>label{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;padding:0}.step{font:500 12px/23px Arial,sans-serif;color:#5a6a65;border:1px solid var(--line);border-radius:50%;width:25px;height:25px;text-align:center}.game-switch{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.game-switch label{position:relative;cursor:pointer}.game-switch input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}.game-switch label>span{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;border:1px solid var(--line);background:#f8faf9;border-radius:10px;min-height:82px;transition:background .15s,border-color .15s}.game-switch b{font:700 23px/1.2 Arial,sans-serif;letter-spacing:.035em}.game-switch small{font-size:12px;color:var(--muted)}.game-switch input:checked+span{background:var(--lime);border-color:#a9ca46;box-shadow:inset 0 0 0 1px #a9ca46}.game-switch input:checked+span small{color:#364721}.game-switch input:focus-visible+span{outline:3px solid #55770e;outline-offset:3px}.stats-field{margin-top:28px}.input-wrap{position:relative;margin-top:14px}.input-wrap input{border:1.5px solid #aab9b2;border-radius:10px;width:100%;height:82px;padding:12px 74px 12px 20px;outline:none;font:500 36px/1.3 Arial,sans-serif;font-variant-numeric:tabular-nums;color:var(--ink);background:white;transition:box-shadow .15s}.input-wrap input::placeholder{font-family:Arial,"Yu Gothic",sans-serif;font-size:26px;color:#8d9a94}.input-wrap input:focus{border-color:#516d29;box-shadow:0 0 0 3px #d7f57070}.input-wrap input[aria-invalid=true]{border-color:#b34c39;box-shadow:0 0 0 3px #f9e7e1}.input-wrap>span{position:absolute;right:20px;top:32px;font:700 14px Arial;color:var(--muted);pointer-events:none}.input-meta{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-top:9px}.input-meta p{font-size:12px;color:var(--muted);margin:0;line-height:1.6}#clear{font-size:12px;background:transparent;color:#4c6156;border:0;text-decoration:underline;text-underline-offset:3px;min-height:32px;padding:4px}.error{font-size:14px;line-height:1.7;color:#a13625;margin:8px 0 0}.automatic{display:flex;gap:9px;align-items:center;margin-top:22px;padding-top:20px;border-top:1px solid #e5eae7;font-size:12px;color:var(--muted)}.automatic>span{font:22px Arial;color:#5d745b}.result-panel{position:relative;display:flex;flex-direction:column;background:var(--ink);color:#fff;padding:31px 34px 0;overflow:hidden}.result-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font:600 12px Arial;letter-spacing:.12em;color:#bdcebd}.game-tag{border:1px solid #607467;border-radius:5px;padding:7px 8px;font-size:10px;color:#e9efdf;white-space:nowrap}.rating-line{display:flex;align-items:baseline;gap:16px;margin-top:26px;min-height:116px}.rt{font:500 24px Arial;color:#bfd1bd}#rating{font:500 99px/1.15 Arial,sans-serif;color:var(--lime);letter-spacing:-.055em;font-variant-numeric:tabular-nums}.result-panel[data-state=empty] #rating,.result-panel[data-state=error] #rating{color:#748b7e}#result-caption{font-size:13px;line-height:1.65;min-height:22px;margin:3px 0 21px;color:#d0ddcf}.class-row{display:flex;align-items:center;justify-content:space-between;padding:13px 0;border-top:1px solid #466054;border-bottom:1px solid #466054}.class-row>span{font:600 11px Arial;letter-spacing:.14em;color:#bfd1bd}#rating-class{font:700 22px/1.2 Arial;letter-spacing:.02em}.rating-scale{padding:22px 0}.scale-track{height:5px;background:#3e5749;border-radius:10px;overflow:hidden}.scale-track>span{display:block;height:100%;width:0;background:var(--lime);border-radius:10px;transition:width .2s ease}.rating-scale>div:last-child{display:flex;justify-content:space-between;margin-top:8px;color:#b2c5b3;font:11px Arial}.result-bottom{display:flex;align-items:center;gap:10px;margin:auto -34px 0;background:#203d35;padding:15px 34px;min-height:52px}.result-icon{color:var(--lime);font-size:20px}#result-detail{font-size:12px;line-height:1.7;color:#e0e9d8;margin:0}.notes{margin-top:21px;color:#5a6c61;font-size:13px}.notes summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;padding:13px 3px;font-size:14px}.notes summary::-webkit-details-marker{display:none}.notes summary>span{font-size:22px;color:#687969}.notes[open] summary>span{transform:rotate(45deg)}.notes>div{padding:0 3px 4px;line-height:1.9;max-width:820px}.source-note{color:#66766b;font-size:12px}footer{max-width:1104px;margin:0 auto;padding:23px 0 28px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#5a6d62;font:600 11px Arial,sans-serif;letter-spacing:.05em}.footer-separator{padding:0 10px;color:#9eaaa1}footer>span:last-child{font-size:10px;letter-spacing:.13em}[hidden]{display:none!important}
@media(min-width:1300px){main{padding-top:65px;padding-bottom:50px}.site-header{height:110px}}
@media(max-width:760px){.site-header{height:78px;padding:0 24px}.brand{font-size:15px;gap:9px}.brand-mark{width:34px;height:34px;font-size:29px;line-height:34px}.brand small{font-size:9px}.felix{font-size:23px}main{padding:30px 22px 26px}.intro h1{font-size:27px}.intro p{font-size:14px}.eyebrow{font-size:11px}.calculator{grid-template-columns:1fr;margin-top:23px;border-radius:18px}.input-panel{padding:24px}.game-switch label>span{min-height:66px}.game-switch b{font-size:22px}.stats-field{margin-top:22px}.input-wrap input{height:70px;font-size:34px}.input-wrap>span{top:27px}.automatic{display:none}.result-panel{padding:23px 24px 0}.rating-line{margin-top:13px;min-height:90px}#rating{font-size:82px}#result-caption{margin:0 0 14px}.class-row{padding:10px 0}.rating-scale{padding:15px 0}.result-bottom{margin:0 -24px;padding:12px 24px;min-height:46px}.notes{margin-top:12px}footer{margin:0 24px;padding:22px 0;gap:12px;flex-wrap:wrap}}
@media(max-width:360px){.site-header{padding:0 18px}.brand{font-size:13px}.brand small{font-size:8px}.felix{font-size:21px}main{padding:24px 16px}.intro h1{font-size:24px}.input-panel{padding:20px}.input-meta{flex-wrap:wrap;gap:0}.result-panel{padding-left:20px;padding-right:20px}.result-bottom{margin-left:-20px;margin-right:-20px;padding-left:20px;padding-right:20px}.input-wrap input::placeholder{font-size:23px}}
@media(max-width:480px){.mobile-break{display:block}.intro h1{font-size:25px;line-height:1.5}main{padding-top:24px}.intro p{font-size:14px}.input-panel{padding-top:20px;padding-bottom:20px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}