@font-face{font-family:Inter;src:url('/inter.woff2') format('woff2');font-display:swap;font-weight:100 900}@font-face{font-family:'Instrument Serif';src:url('/instrument-serif.woff2') format('woff2');font-display:swap;font-weight:400}
:root{color-scheme:light;--bg:#f2eee8;--paper:#fffdf8;--ink:#272d38;--soft:#57616f;--deep:#242e43;--warm:#f9bb84;--accent:#943d23;--line:#d6cdc3}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--ink);font:500 1rem/1.55 Inter,system-ui,sans-serif}a{color:var(--accent);text-underline-offset:4px}button,input{font:inherit}button{cursor:pointer}:focus-visible{outline:2px solid #b95c3c;outline-offset:3px}
.wrap{width:min(1160px,calc(100% - 48px));margin:auto}.top,.bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0;font-size:.87rem}.brand{display:flex;align-items:center;gap:8px;color:var(--ink);font-weight:800;text-decoration:none}.brand span{display:inline-block;position:relative;width:25px;height:25px;background:var(--deep);border-radius:5px}.brand span::before,.brand span::after{content:'';position:absolute;width:8px;height:6px;left:5px;top:6px;background:var(--warm);border-radius:1px}.brand span::after{left:12px;top:14px}
.hero{background:var(--deep);color:#fff8ee;border-radius:12px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);align-items:end;gap:26px;padding:clamp(25px,6vw,65px);margin-bottom:14px}.hero h1,.guide h1{margin:0;font:400 clamp(3.35rem,8vw,7rem)/.87 'Instrument Serif',Georgia,serif;letter-spacing:-.025em}.hero p{color:#eee1d5;max-width:48ch;margin:13px 0 0}.hero-tools{border-left:1px solid #706975;padding-left:16px}.hero-tools p{margin:8px 0 0;font-size:.84rem}.hero button{background:var(--warm);color:#472b21;border:0;border-radius:6px;padding:8px 12px;font-weight:800;font-size:.8rem}.hero button:focus-visible{outline-color:#ffd6b0}
.panel{padding:clamp(12px,2vw,22px);border:1px solid var(--line);border-radius:10px;background:var(--paper);margin-bottom:11px}.section-head{display:flex;justify-content:space-between;align-items:start;gap:15px;margin-bottom:10px}.section-head h2,.learn h2{font-size:1.05rem;letter-spacing:-.018em;margin:0}.section-head p,.hint,.chosen,.message,.error{margin:3px 0 0;color:var(--soft);font-size:.78rem}.message:empty{display:none}.error{color:#9a361c;font-weight:700}.panel button:not(.node){color:var(--accent);background:#fffaf3;border:1px solid #d1b9a8;border-radius:6px;padding:6px 9px;font-size:.78rem;font-weight:750;min-height:34px}.panel button:not(.node):hover{background:#f8ede3}
.row{display:grid;grid-template-columns:minmax(0,.52fr) minmax(0,1.7fr) minmax(0,.6fr) minmax(0,1.1fr) 66px;gap:7px;align-items:center;margin-bottom:6px}.labels{font-size:.77rem;color:var(--soft);font-weight:760}.row input{width:100%;min-width:0;background:#fffcf8;color:var(--ink);border:1px solid #bbafa7;border-radius:6px;font-size:.83rem;padding:7px;min-height:36px}.row input::placeholder{color:#74685f}.hint{margin-top:9px}
.stats{display:flex;gap:6px;flex-wrap:wrap}.stats div{display:grid;padding:6px 9px;border-radius:6px;background:#f5e9db}.stats output{font-size:1.25rem;font-weight:800;line-height:1.1}.stats span{color:var(--soft);font-size:.72rem}.diagram{overflow:auto;border:1px solid #d4c7bc;border-radius:8px;background:#f7eee2;min-height:137px;max-height:470px}.scene{position:relative;min-height:137px}.scene canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.node{position:absolute;display:grid;align-content:center;gap:2px;text-align:left;overflow:hidden;background:#fffaf3;border:1px solid #c6b9ac;border-radius:7px;padding:5px 7px;color:var(--ink);white-space:nowrap}.node.critical{background:#ffe9d7;border-color:#c66841}.node[aria-pressed=true]{box-shadow:0 0 0 2px #923c22}.node strong{font-size:.76rem;overflow:hidden;text-overflow:ellipsis}.node span{font-size:.66rem;color:var(--soft);overflow:hidden;text-overflow:ellipsis}
.diagram-key{display:flex;gap:14px;align-items:center;margin-top:7px;font-size:.73rem;color:var(--soft)}.diagram-key span{display:flex;gap:4px;align-items:center}.diagram-key i{width:11px;height:3px;background:#a8512b}.diagram-key span+span i{background:#8d98a8}.chosen{margin-top:5px}.table-scroll{overflow:auto;max-height:450px}.timing table{width:100%;border-collapse:collapse;font-size:.81rem;text-align:left;font-variant-numeric:tabular-nums;min-width:475px}.timing th,.timing td{padding:7px;border-bottom:1px solid var(--line)}.timing th{font-size:.73rem;color:var(--soft)}.timing td:last-child{font-weight:740}.timing tr[data-critical=true] td:first-child{color:var(--accent);font-weight:730}
.learn,.bottom{border-top:1px solid var(--line)}.learn{margin-top:23px;padding:15px 0}.learn p{color:var(--soft);max-width:65ch;margin:6px 0}.bottom{margin-top:9px}.guide{width:min(730px,100%);margin:43px auto}.guide h1{font-size:clamp(3rem,8vw,5.9rem);margin:14px 0 22px}.guide h2{font-size:1.15rem;margin:24px 0 3px}.guide p{color:var(--soft)}.example{padding:10px 13px;border:1px solid var(--line);border-radius:7px;background:var(--paper)}
@media(max-width:700px){.hero{grid-template-columns:1fr;gap:14px}.hero-tools{border:0;padding-left:0}.row{grid-template-columns:minmax(0,.55fr) minmax(0,1.5fr) minmax(0,.75fr) minmax(0,1fr) 62px}.labels{font-size:.7rem}.section-head{align-items:flex-start}}
@media(max-width:430px){.wrap{width:calc(100% - 24px)}.hero h1{font-size:clamp(3rem,12vw,4rem)}.top,.bottom{font-size:.75rem}.row.labels{display:none}.row{grid-template-columns:minmax(0,.55fr) minmax(0,1fr) minmax(0,.65fr);border-bottom:1px solid var(--line);padding-bottom:7px}.row input:nth-child(2){grid-column:2/-1}.row input:nth-child(4){grid-column:2/-1}.row button{grid-column:3}.results .section-head{display:grid}.panel{padding:11px}}