:root{--paper:#faf6eb;--white:#fffefb;--ink:#252a27;--muted:#64665e;--line:#dad6c9;--purple:#6053b5;--green:#356754;--orange:#cb5d37;--yellow:#efc276;--wash:#f0eedf;--accent:var(--green)}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.55}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}a{color:var(--green);text-underline-offset:3px}button{border:1px solid #a8ac9b;border-radius:9px;background:var(--white);padding:10px 15px;min-height:44px;line-height:1.35}button:hover{background:#eeeadd}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--purple);outline-offset:4px}h1,h2,h3,p{margin:0 0 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@media(max-width:760px){.sketch-sheet{padding:12px}.pie-sketch{padding:12px}.pie-sketch-steps{grid-template-columns:1fr}.sketch-text,.sketch-transfer{padding:10px}}
.demo-position{align-self:center;font-size:.82rem;color:var(--muted);padding:4px}
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@media(max-width:390px){.fields{grid-template-columns:1fr}.activity-head,.activity-body{padding:14px}.activity-top{flex-wrap:wrap}.slice-line{flex-wrap:wrap}.finish-grid{grid-template-columns:1fr}.finish-stat b{font-size:1.3rem;display:inline;margin-right:10px}}
@media(prefers-reduced-motion:no-preference){.point{animation:point-in .25s ease-out;transform-box:fill-box;transform-origin:center}.feedback{animation:feedback-in .18s ease-out}.trail button,.route-tabs button{transition:background .15s}@keyframes point-in{from{opacity:0;transform:scale(.3)}to{opacity:1;transform:scale(1)}}@keyframes feedback-in{from{opacity:.4;transform:translateY(4px)}to{opacity:1;transform:none}}}
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@media print{body:not(.interactive-ready)>main{display:block!important}body:not(.interactive-ready) #print-summary{display:none}body:not(.interactive-ready) .paper-stamp,body:not(.interactive-ready) footer{display:none}}

.how-to-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.how-to-tabs button{flex:1;min-width:100px}.how-to-tabs button[aria-pressed=true]{background:var(--green);color:var(--white);border-color:var(--green)}.how-to-sheet .sketch-figure{max-width:620px;margin:16px auto}.how-to-entry{padding:14px;margin-bottom:18px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}.how-to-entry p{margin:8px 0 0}

.demo-data{background:var(--white);margin:12px 0 18px}.demo-data .demo-active-row>th,.demo-data .demo-active-row>td{background:#fff0d2;font-weight:700}.demo-data .demo-active-row>th{border-left:4px solid var(--orange)}.demo-row-label{display:block;font-size:.72rem;font-weight:600;color:#704318}.demo-data th,.demo-data td{vertical-align:top}