:root{--bg: #e9ebef;--bg-hi: #f7f8fa;--surface: #ffffff;--surface-2: #f0f2f5;--surface-3: #e4e7ec;--text: #0f1115;--text-2: #5a616f;--text-3: #8a91a0;--border: #d5d9e0;--grid-line: #e3e6eb;--accent: #e0301a;--accent-2: #d98a00;--accent-text: #ffffff;--glow: 0 0 0 transparent;--glow-a: rgba(224, 48, 26, .18);--sel: #1f6fd6;--c-ref: #8a8f99;--c-new: #e0301a;--warn: #c2410c;--bad: #c81e1e;--g1: #1f6fd6;--g2: #13936a;--g3: #c28100;--g4: #7c3aed;--g5: #0e8fa8;--g6: #d02b6a;--heat: #e0301a;--chart-glow: 0;--font-num: "Barlow Condensed", "DIN Alternate", "Arial Narrow", system-ui, sans-serif;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #07080a;--bg-hi: #12151b;--surface: #111318;--surface-2: #181b22;--surface-3: #20242d;--text: #f1f3f7;--text-2: #939aa9;--text-3: #626a79;--border: #232731;--grid-line: #1c2028;--accent: #ff3d1f;--accent-2: #ffb020;--glow-a: rgba(255, 61, 31, .35);--glow: 0 0 18px rgba(255, 61, 31, .45);--sel: #4aa8ff;--c-ref: #6f7686;--c-new: #ff3d1f;--warn: #fb923c;--bad: #f87171;--g1: #4aa8ff;--g2: #2ee6a0;--g3: #ffc233;--g4: #b28cff;--g5: #33d6f0;--g6: #ff5fa8;--heat: #ff3d1f;--chart-glow: 1;color-scheme:dark}}:root[data-theme=dark]{--bg: #07080a;--bg-hi: #12151b;--surface: #111318;--surface-2: #181b22;--surface-3: #20242d;--text: #f1f3f7;--text-2: #939aa9;--text-3: #626a79;--border: #232731;--grid-line: #1c2028;--accent: #ff3d1f;--accent-2: #ffb020;--glow-a: rgba(255, 61, 31, .35);--glow: 0 0 18px rgba(255, 61, 31, .45);--sel: #4aa8ff;--c-ref: #6f7686;--c-new: #ff3d1f;--warn: #fb923c;--bad: #f87171;--g1: #4aa8ff;--g2: #2ee6a0;--g3: #ffc233;--g4: #b28cff;--g5: #33d6f0;--g6: #ff5fa8;--heat: #ff3d1f;--chart-glow: 1;color-scheme:dark}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;color:var(--text);min-height:100vh;background:radial-gradient(1200px 500px at 85% -10%,var(--glow-a),transparent 60%),radial-gradient(900px 400px at -10% 110%,color-mix(in srgb,var(--accent-2) 10%,transparent),transparent 60%),var(--bg);background-attachment:fixed;font:14px/1.5 system-ui,-apple-system,Hiragino Sans,Noto Sans JP,sans-serif}h1,h2,h3{margin:0;line-height:1.3}h2{font-size:20px}h3{font-size:14px;margin-bottom:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.en{font-family:var(--font-num);font-style:italic;font-weight:700;letter-spacing:.12em;font-size:11px;color:var(--accent);text-transform:uppercase}h3 .en:before{content:"";display:inline-block;width:14px;height:3px;margin-right:6px;vertical-align:middle;background:var(--accent);transform:skew(-30deg);box-shadow:var(--glow)}h2 .en{display:block;font-size:12px}.muted{color:var(--text-2);font-size:12.5px;margin:4px 0 0}button,.button,select,input,textarea{font:inherit;color:var(--text);background:var(--surface-2);border:1px solid var(--border);border-radius:6px}input,select,textarea{transition:border-color .15s,box-shadow .15s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--glow-a)}button,.button{padding:5px 12px;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,box-shadow .15s}button:hover,.button:hover{background:var(--surface-3);border-color:color-mix(in srgb,var(--accent) 50%,var(--border))}button.primary{background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 85%,#fff),var(--accent));color:var(--accent-text);border-color:var(--accent);font-weight:700;letter-spacing:.03em;box-shadow:var(--glow)}button.primary:hover{filter:brightness(1.1)}button.ghost,.button.ghost{background:transparent}button.icon{width:34px;padding:5px 0;font-size:16px;line-height:1}select,input{padding:4px 8px}input[type=number]{font-family:var(--font-num);font-size:15px;font-weight:600;font-variant-numeric:tabular-nums}textarea{width:100%;padding:8px;font-family:ui-monospace,Menlo,monospace;font-size:12.5px;background:var(--surface-2)}.sticky-head{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 96%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 6px 18px #0000002e}.topbar{position:relative;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:12px 20px;background:color-mix(in srgb,var(--surface) 88%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.topbar:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,var(--accent) 0 22%,var(--accent-2) 22% 26%,transparent 26% 27%,var(--accent) 27% 28%,transparent 28%);box-shadow:var(--glow)}.brand{display:flex;gap:12px;align-items:center}.logo{width:38px;height:38px;color:var(--text);flex:none;filter:drop-shadow(0 0 6px var(--glow-a))}.brand h1{font-family:var(--font-num);font-style:italic;font-weight:800;font-size:26px;letter-spacing:.04em;line-height:1}.brand h1 b{color:var(--accent);text-shadow:var(--glow)}.actions{display:flex;gap:8px;align-items:center;min-width:0;max-width:100%}.menu{position:relative}.menu summary{list-style:none;display:inline-block;text-align:center}.menu summary::-webkit-details-marker{display:none}.menu-pop{position:absolute;right:0;top:calc(100% + 6px);z-index:20;min-width:180px;display:grid;gap:4px;padding:6px;border-radius:10px;background:var(--surface);border:1px solid var(--border);box-shadow:0 12px 32px #0000004d}.menu-pop button,.menu-pop .button{text-align:left;border-color:transparent}.menu-pop .muted{padding:2px 8px;font-size:11.5px}#preset{max-width:100%;min-width:0;text-overflow:ellipsis}.tabs{display:flex;gap:4px;padding:0 20px;background:color-mix(in srgb,var(--surface) 70%,transparent);border-bottom:1px solid var(--border);overflow-x:auto;scrollbar-width:none}.tabs button{position:relative;border:none;border-radius:0;background:none;padding:12px 16px 10px;color:var(--text-2);font-weight:600}.tabs button:hover{background:var(--surface-2)}.tabs button.active{color:var(--text)}.tabs button.active:after{content:"";position:absolute;left:10px;right:10px;bottom:-1px;height:3px;background:var(--accent);transform:skew(-30deg);box-shadow:var(--glow)}main{padding:18px 20px 48px;max-width:1560px;margin:0 auto}.tab{display:none}.tab.active{display:block;animation:tab-in .25s ease-out}@keyframes tab-in{0%{opacity:0;transform:translateY(4px)}}.card{position:relative;background:linear-gradient(180deg,var(--bg-hi),var(--surface) 80px);border:1px solid var(--border);border-radius:10px;padding:16px;box-shadow:0 1px color-mix(in srgb,#fff 4%,transparent) inset,0 8px 24px #0000001f}.calc-layout{display:grid;grid-template-columns:minmax(300px,380px) minmax(0,1fr);gap:18px;align-items:start}.calc-results{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;min-width:0}.spec-form{display:grid;gap:14px}.spec-form fieldset{margin:0;background:linear-gradient(180deg,var(--bg-hi),var(--surface) 60px);border:1px solid var(--border);border-radius:10px;padding:8px 16px 14px}.spec-form legend{font-weight:700;padding:2px 10px;font-size:12.5px;letter-spacing:.04em;background:var(--accent);color:var(--accent-text);border-radius:4px;transform:skew(-8deg);box-shadow:var(--glow)}.spec-row{display:grid;grid-template-columns:1fr 110px 40px 24px;gap:8px;align-items:center;padding:4px 0;border-bottom:1px dashed var(--grid-line)}.spec-row:last-child{border-bottom:none}.spec-row input,.spec-row select{width:100%;text-align:right}.spec-row select,.spec-row input[type=text]{text-align:left}.spec-row.wide{grid-template-columns:auto minmax(0,1fr) 24px}.spec-row>span:first-child{white-space:nowrap}.spec-row .unit{color:var(--text-3);font-size:12px;font-family:var(--font-num);font-weight:600;letter-spacing:.04em}.est{font-size:10.5px;color:var(--accent-2);border:1px solid currentColor;border-radius:4px;padding:0 4px;margin-left:6px;font-weight:600}input.invalid,textarea.invalid{border-color:var(--bad);box-shadow:0 0 0 2px color-mix(in srgb,var(--bad) 35%,transparent)}.hero-card{padding:12px 16px 10px;overflow:hidden}.hero{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px 16px}.hero-label{font-size:12px;color:var(--text-2);display:flex;align-items:center;gap:6px;flex-wrap:wrap}.hero-value{font-family:var(--font-num);font-style:italic;font-weight:800;font-size:50px;line-height:.95;font-variant-numeric:tabular-nums;color:var(--accent);text-shadow:var(--glow);letter-spacing:-.01em}.hero-value.secondary{color:var(--accent-2);font-size:50px;text-shadow:0 0 16px color-mix(in srgb,var(--accent-2) calc(var(--chart-glow) * 45%),transparent)}.hero-value small{font-size:16px;font-weight:700;color:var(--text-2);margin-left:6px;letter-spacing:.04em;text-shadow:none;font-style:normal}.hero-sub{font-size:12px;color:var(--text-2);margin-top:2px}.hero-sub>span{display:block}.more{margin-top:8px;border-top:1px solid var(--border);padding-top:6px}.more summary{cursor:pointer;color:var(--text-2);font-size:12.5px;width:max-content}.more summary:hover{color:var(--text)}.derived{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:10px 0 0;font-size:13px}.derived dt{color:var(--text-2)}.derived dd{margin:0;font-variant-numeric:tabular-nums;font-weight:600}.h3-sub{font-size:12px;font-weight:400;color:var(--text-2)}.hero-value.cruise-value{color:var(--g2);text-shadow:0 0 16px color-mix(in srgb,var(--g2) calc(var(--chart-glow) * 40%),transparent)}.hero-cruise.ng .cruise-value{color:var(--text-3);text-decoration:line-through;text-decoration-thickness:2px}.cruise-note{margin:2px 0 0;font-size:12px;color:var(--accent)}.cruise-note:empty{display:none}.table-wrap{overflow-x:auto}table.data{border-collapse:collapse;width:100%;font-size:13px;white-space:nowrap}table.data th,table.data td{padding:6px 10px;text-align:right;border-bottom:1px solid var(--grid-line)}table.data td{font-family:var(--font-num);font-size:15.5px;font-weight:600;font-variant-numeric:tabular-nums}table.data thead th{color:var(--text-2);font-weight:600;font-size:11.5px;vertical-align:bottom;background:var(--surface-2)}table.data thead th:first-child{border-radius:6px 0 0 6px;text-align:left}table.data thead th:last-child{border-radius:0 6px 6px 0}table.data thead th small{display:block;font-weight:600;font-size:12px;font-family:var(--font-num);color:var(--text-3)}table.data tbody th{text-align:left;font-family:var(--font-num);font-style:italic;font-weight:700;font-size:15px}table.data tbody tr{transition:background .12s}table.data tbody tr:hover{background:var(--surface-2)}table.data tr.hl td,table.data tr.hl th{background:color-mix(in srgb,var(--accent) 12%,transparent)}table.data tr.hl th{box-shadow:inset 3px 0 0 var(--accent)}.dot{display:inline-block;width:9px;height:9px;border-radius:2px;background:var(--c);margin-right:7px;vertical-align:1px;transform:skew(-15deg);box-shadow:0 0 8px color-mix(in srgb,var(--c) calc(var(--chart-glow) * 70%),transparent)}h3 .inline{margin-left:auto;font-weight:400;font-size:12.5px;color:var(--text-2);display:flex;gap:6px;align-items:center}#speed-table tbody th,#speed-table tbody td{padding-top:1px;padding-bottom:1px}table.data tfoot th{text-align:left;padding:6px 10px}table.data tfoot td{font-family:var(--font-num);font-size:15.5px;font-weight:700;color:var(--accent)}.rev-cap{display:flex;align-items:center;font-size:11px;color:var(--text-2);font-weight:600;white-space:nowrap}.rev-cap .info{width:14px;height:14px;font-size:10px;margin-left:4px}.rev-edit{display:flex;align-items:center;gap:2px;margin-top:3px}.rev-in{width:84px;text-align:right;padding:2px 6px}table.data tr.ratio-row th{background:color-mix(in srgb,var(--accent) 10%,var(--surface-2));color:var(--text);padding:4px 6px}table.data tr.ratio-row th:first-child{text-align:left;font-size:12px;white-space:nowrap;padding-left:10px}.ratio-in{width:70px;text-align:right;padding:2px 6px}.gear-btns{display:inline-flex;gap:2px;margin-left:6px;vertical-align:middle}.gear-btns button{width:22px;height:22px;padding:0;line-height:1;font-weight:700}.gear-btns button:disabled{opacity:.35;cursor:default}.map-head{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-bottom:14px}.map-head .toolbar{margin:0}.seg{display:flex;flex-wrap:wrap;gap:0;padding:3px;border-radius:8px;background:var(--surface-2);border:1px solid var(--border)}.seg button{border:none;background:none;border-radius:6px;color:var(--text-2);font-weight:600}.seg button.active{background:var(--accent);color:var(--accent-text);box-shadow:var(--glow)}.toolbar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:12px}.toolbar label{display:flex;gap:6px;align-items:center}input.num{width:64px;text-align:right}.legend{display:flex;flex-wrap:wrap;gap:16px;font-size:12px;color:var(--text-2);margin-top:10px}.lg{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-2px;border:1px solid var(--border)}.lg.cur{border:2px solid var(--text)}.lg.best{background:var(--accent);border-color:var(--accent);box-shadow:var(--glow)}.summary{font-size:12.5px;color:var(--text-2)}.grid-wrap{overflow:auto;max-width:100%;border:1px solid var(--border);border-radius:10px;background:var(--surface);box-shadow:0 8px 24px #0000001f}table.grid{border-collapse:separate;border-spacing:0;-webkit-user-select:none;user-select:none}table.grid th,table.grid td{padding:0 10px;height:34px;min-width:64px;text-align:right;border-right:1px solid var(--grid-line);border-bottom:1px solid var(--grid-line)}table.grid td{font-family:var(--font-num);font-size:16px;font-weight:600;font-variant-numeric:tabular-nums;cursor:pointer;position:relative;transition:filter .12s}table.grid td:hover{filter:brightness(1.25)}table.grid th{background:var(--surface-2);color:var(--text-2);font-family:var(--font-num);font-style:italic;font-weight:700;font-size:14px;position:sticky}table.grid thead th{top:0;z-index:2}table.grid tbody th{left:0;z-index:1}table.grid th.corner{left:0;z-index:3;font-size:11px;font-style:normal}table.grid td.cursor{outline:2px solid var(--sel);outline-offset:-2px;z-index:1}table.sweep td{background:color-mix(in srgb,var(--heat) calc(var(--t) * 55%),var(--surface))}table.sweep td.cur{box-shadow:inset 0 0 0 2px var(--text);font-weight:800}table.sweep td.best{background:var(--accent);color:var(--accent-text);font-weight:800;box-shadow:0 0 16px var(--glow-a),inset 0 0 0 1px color-mix(in srgb,#fff 40%,transparent);z-index:1}.result-layout{display:grid;grid-template-columns:minmax(0,max-content) 290px;gap:18px;align-items:start}.detail h3{margin-bottom:8px;font-family:var(--font-num);font-style:italic;font-size:22px;font-weight:800}.detail dl{display:grid;grid-template-columns:auto 1fr;gap:5px 10px;margin:0;font-size:12.5px}.detail dt{color:var(--text-2)}.detail dd{margin:0;text-align:right;font-variant-numeric:tabular-nums;font-weight:600}.detail button.block{width:100%;margin-top:14px;padding:8px}.charts{display:grid;grid-template-columns:minmax(0,1fr);gap:18px}.chart{width:100%;height:340px;display:block}.chart.small{height:180px;margin-top:10px}.chart-legend{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--text-2);margin-bottom:8px}.chart-legend span:before{content:"";display:inline-block;width:16px;height:3px;background:var(--c);margin-right:6px;vertical-align:middle;border-radius:2px;box-shadow:0 0 6px color-mix(in srgb,var(--c) calc(var(--chart-glow) * 80%),transparent)}.chart-legend span.dash:before{background:repeating-linear-gradient(90deg,var(--c) 0 4px,transparent 4px 7px);box-shadow:none}@media(max-width:750px){.hero{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-cruise{grid-column:1 / -1;padding-top:10px;border-top:1px dashed var(--border)}}@media(max-width:560px){.hero{grid-template-columns:minmax(0,1fr)}.topbar{padding:8px 12px;gap:6px}.logo{width:26px;height:26px}.brand{gap:8px}.brand h1{font-size:20px}.actions{width:100%}#preset{flex:1;padding:3px 6px}.actions .icon{width:30px;padding:3px 0}.tabs button{padding:8px 12px 7px}}@media(max-width:900px){.calc-layout,.result-layout,.charts{grid-template-columns:minmax(0,1fr)}.calc-results{order:-1}main{padding:14px 16px 36px}.topbar{padding:10px 16px}.tabs{padding:0 8px}.spec-row{grid-template-columns:minmax(0,1fr) 88px 36px 24px;gap:6px}.spec-row>span:first-child{white-space:normal}.derived{grid-template-columns:minmax(0,auto) minmax(0,1fr)}.derived dd{overflow-wrap:anywhere}.hero-value,.hero-value.secondary{font-size:48px}}@media(prefers-reduced-motion:reduce){.tab.active{animation:none}}.info{display:inline-grid;place-items:center;flex:none;width:16px;height:16px;margin-left:6px;vertical-align:1px;border-radius:50%;border:1px solid var(--text-3);color:var(--text-2);cursor:help;font:italic 700 11px/1 Georgia,serif;-webkit-user-select:none;user-select:none;transition:color .15s,border-color .15s,box-shadow .15s}.info:hover,.info:focus-visible{color:var(--accent);border-color:var(--accent);box-shadow:0 0 0 3px var(--glow-a);outline:none}#tip{position:fixed;z-index:100;max-width:min(300px,calc(100vw - 16px));padding:8px 11px;border-radius:8px;background:var(--surface-3);color:var(--text);border:1px solid var(--border);box-shadow:0 10px 28px #00000059;font-size:12.5px;line-height:1.6;pointer-events:none;opacity:0;transform:translateY(2px);transition:opacity .12s,transform .12s;left:-9999px;top:0}#tip.show{opacity:1;transform:none}.map-head>.info{margin-right:auto}.reset{width:24px;height:24px;padding:0;border-radius:6px;line-height:1;font-size:14px;background:transparent;border-color:transparent;color:var(--text-3)}.reset:disabled{opacity:.3;cursor:default}.reset:disabled:hover{background:transparent;border-color:transparent}.reset.changed{color:var(--accent-2);border-color:color-mix(in srgb,var(--accent-2) 45%,transparent)}.reset.changed:hover{background:color-mix(in srgb,var(--accent-2) 15%,transparent);border-color:var(--accent-2)}.gear-btns .reset{width:22px;height:22px}