:root{--paper:#f7f5ed;--ink:#243438;--muted:#6e7878;--blue:#255de9;--orange:#ff925b;--mint:#27a582;--peach:#e16d85;--line:#d6dad3;--white:#fffef9;--shadow:5px 6px 0 #253538;--font:"Yu Gothic","Hiragino Kaku Gothic ProN","Meiryo",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-weight:500;line-height:1.6;background-image:radial-gradient(#24343812 .8px,transparent .8px);background-size:8px 8px}button,a,input{font:inherit}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible{outline:3px solid var(--blue);outline-offset:4px}button{transition:transform .15s,background .15s}button:not(:disabled):active{transform:translateY(2px)}[hidden]{display:none!important}h1,h2,p{margin:0}button{border:0}a{text-decoration:none;color:inherit}.site-header{max-width:1240px;margin:0 auto;padding:27px 28px 21px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-family:"Arial Black",Arial,sans-serif;font-size:13px;font-weight:900;letter-spacing:1px;line-height:1.1}.brand strong{display:block;font-size:22px;letter-spacing:3px}.brand-wheel{font-size:43px;line-height:1;transform:rotate(-15deg)}.header-actions{display:flex;gap:13px;align-items:center}.small-tag{font-size:11px;font-weight:700;margin-right:12px;letter-spacing:1px}.icon-button{min-width:39px;height:39px;border:1.5px solid var(--ink);border-radius:50%;background:transparent;font-size:12px;font-weight:800;padding:0 8px}.icon-button:hover{background:#fff}main{max-width:1184px;margin:auto;padding:35px 28px 0}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:33px}.eyebrow{font-family:Arial,sans-serif;font-size:10px;font-weight:800;letter-spacing:2px;display:flex;align-items:center;gap:8px}.eyebrow>span{width:8px;height:8px;background:var(--orange);border-radius:50%}h1{font-size:56px;letter-spacing:-2px;line-height:1.22;font-weight:900;margin:12px 0 14px}h1 br{display:none}.title-mark{position:relative;z-index:0}.title-mark:after{content:"";position:absolute;left:0;right:-5px;bottom:4px;height:17px;background:#ffb38b;transform:rotate(-2deg);z-index:-1}.intro-copy{font-size:13px;color:var(--muted);line-height:1.8}.intro-copy br{display:none}.intro-doodle{width:220px;transform:rotate(-6deg);margin-right:50px;text-align:center}.intro-doodle svg{width:205px;fill:#a5c5ed28;stroke:var(--ink);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.intro-doodle span{display:block;font-size:12px;font-weight:800;letter-spacing:1px;margin-top:-10px}.workshop{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(280px,1fr);gap:40px;align-items:start}.drawing-panel{background:var(--white);border:2px solid var(--ink);border-radius:5px 7px 6px 10px;box-shadow:var(--shadow);transform:rotate(-.3deg);overflow:hidden}.paper-heading{padding:17px 19px 14px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);font-size:13px;font-weight:800;gap:8px}.step-number{font-family:Arial,sans-serif;font-size:11px;border:1.5px solid var(--ink);padding:3px 5px;margin-right:7px;display:inline-block;line-height:1.3;transform:rotate(-5deg)}.draw-tools{display:flex;gap:10px}.tool{background:transparent;font-size:11px;border-bottom:1px solid transparent;padding:5px 3px;font-weight:700}.tool:hover{border-color:var(--ink)}.drawing-wrap{position:relative;margin:0 12px;background-color:var(--white);background-image:linear-gradient(#95b0c52b 1px,transparent 1px),linear-gradient(90deg,#95b0c52b 1px,transparent 1px);background-size:24px 24px}#drawing{width:100%;display:block;aspect-ratio:640/360;touch-action:none;cursor:crosshair}.empty-hint{position:absolute;left:0;right:0;top:40%;text-align:center;color:#8a9492;pointer-events:none;font-size:18px;font-weight:700}.empty-hint small{display:block;font-size:11px;margin-top:10px;font-weight:500}.paper-corner{position:absolute;right:11px;bottom:10px;font-family:Arial,sans-serif;font-size:9px;letter-spacing:1.5px;font-weight:800;color:#87948c;pointer-events:none}.sample-row{padding:12px 16px;border-top:1px dashed var(--line);display:flex;align-items:center;gap:7px;font-size:10px}.sample-row>span{color:var(--muted);margin-right:7px}.sample-row button{border:1px solid #cbd1ca;background:transparent;border-radius:20px;padding:5px 11px;font-size:10px;font-weight:700}.sample-row button:hover{background:#edf3ff;border-color:var(--blue)}.shape-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:12px 19px 0}.shape-stats>div{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:7px;font-size:10px}.shape-stats b{font-family:Arial,sans-serif;font-size:11px;width:18px}.stat-track{height:5px;background:#e5e9e1;border-radius:3px;overflow:hidden}.stat-track i{height:100%;background:var(--blue);display:block;border-radius:3px;transition:width .2s}#balance{background:var(--mint)}#reach{background:var(--peach)}.shape-description{padding:10px 19px 15px;font-size:10px;color:var(--muted);min-height:41px}.section-label{font-size:13px;font-weight:800;margin:0 0 17px}.courses{display:flex;flex-direction:column;gap:9px}.course{display:flex;align-items:center;gap:14px;width:100%;padding:12px 13px;text-align:left;background:#fffef970;border:1.5px solid #cfd4cb;border-radius:4px}.course.selected{border-color:var(--ink);box-shadow:3px 3px 0 var(--ink);background:#fffef9}.course:hover{background:#fff}.course>span:nth-child(2){flex:1}.course strong{display:block;font-size:13px;font-weight:800}.course small{display:block;font-size:9px;color:var(--muted);margin-top:2px;letter-spacing:.5px}.course>b{font-family:Arial,sans-serif;font-size:10px;font-weight:800;color:#9ba39c}.course-illustration{width:45px;height:39px;display:grid;place-items:center;font-size:42px;font-family:Arial,sans-serif;font-weight:600;line-height:1;border-radius:2px}.course-illustration.park{background:#dcecdf;color:#649976}.course-illustration.works{background:#f6ead3;color:#c99643}.course-illustration.hills{background:#e9e3f3;color:#9680bf}.course-description{font-size:10px;color:var(--muted);margin-top:12px;min-height:18px}.cpu-selection{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:6px;font-size:10px}.cpu-selection>div{display:flex;border:1px solid #c5ccc2;border-radius:25px;padding:3px;gap:2px}.cpu-selection button{background:transparent;font-size:10px;padding:5px 12px;border-radius:20px}.cpu-selection button.selected{background:var(--ink);color:var(--white)}.best-line{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--muted);margin:17px 0 13px}.best-line strong{font-size:13px;color:var(--ink);font-family:Arial,sans-serif}.primary{border:2px solid var(--ink);background:var(--orange);color:var(--ink);font-size:14px;font-weight:900;padding:14px 19px;box-shadow:3px 4px 0 var(--ink);border-radius:3px}.primary:hover{background:#ffa370;transform:translateY(-1px)}.start-button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:15px 19px}.start-button>span:last-child{font-size:29px;line-height:1}.start-note{font-size:9px;text-align:center;color:var(--muted);margin-top:12px}.little-lessons{display:flex;justify-content:space-between;gap:18px;margin:32px 0 25px;font-size:10px;color:var(--muted)}.little-lessons strong{color:var(--ink)}.little-lessons p>span{font-size:21px;font-family:Arial,sans-serif;margin-right:5px;color:var(--ink)}footer{max-width:1240px;padding:24px 28px;margin:24px auto 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:9px;color:var(--muted)}footer>span:first-child{font-family:Arial,sans-serif;font-weight:800;letter-spacing:1px;font-size:9px}.status{font-size:11px;color:#b6552b;margin-top:14px;min-height:18px}.race-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.race-heading h2{font-size:25px;margin-top:4px;font-weight:900}.race-menu{display:flex;gap:17px;align-items:center}.race-menu .icon-button{border-radius:20px;padding:0 13px}.race-frame{position:relative;border:2px solid var(--ink);border-radius:7px;overflow:hidden;box-shadow:var(--shadow);background:#e6f1f3;height:clamp(330px,56vw,570px)}#game{width:100%;height:100%}#game canvas{display:block}.hud{position:absolute;left:22px;top:20px;right:22px;display:flex;justify-content:space-between;align-items:center;pointer-events:none}.hud>span:first-child{background:var(--white);border:2px solid var(--ink);padding:6px 13px;box-shadow:2px 2px 0 var(--ink);font-size:12px;font-weight:900}.hud>span:last-child{font-family:Arial,sans-serif;background:var(--white);border:1.5px solid var(--ink);padding:7px 12px;border-radius:3px;min-width:96px;text-align:right}.hud b{font-size:23px;line-height:1;font-variant-numeric:tabular-nums}.hud small{font-family:var(--font);font-size:9px;padding-left:5px}.race-progress{position:absolute;top:29px;left:25%;right:25%;height:18px}.track-line{display:block;position:absolute;top:7px;left:0;right:0;border-top:2px dashed #688d96}.race-progress i{position:absolute;left:0;top:4px;width:9px;height:9px;border-radius:50%;border:1px solid var(--ink);transition:left .1s}.race-progress i.mint{background:var(--mint);top:0}.race-progress i.peach{background:var(--peach);top:10px}.race-progress i.blue{background:var(--blue);width:12px;height:12px;top:3px;z-index:2}.race-progress>b{position:absolute;right:-20px;top:-5px;font-size:20px}.countdown{position:absolute;left:50%;top:36%;transform:translate(-50%,-50%) rotate(-7deg);font-family:"Arial Black",Arial,sans-serif;font-size:105px;color:var(--ink);text-shadow:4px 4px 0 var(--orange);pointer-events:none;font-weight:900;line-height:1}.paused-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:25px;background:#f7f5edda}.paused-overlay>span{font-size:30px;font-weight:900}.race-callout{position:absolute;left:50%;top:22%;transform:translateX(-50%) rotate(-3deg);font-size:17px;font-weight:900;background:#fffef9df;padding:2px 12px;border-radius:3px;pointer-events:none;white-space:nowrap}.race-callout:empty{display:none}.race-bottom{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:20px;font-size:11px}.race-bottom p{color:var(--muted)}.recover-button{background:var(--white);border:1.5px solid var(--ink);border-radius:3px;box-shadow:2px 2px 0 var(--ink);padding:9px 16px;font-size:13px;font-weight:800;white-space:nowrap}.recover-button small{font-size:9px;margin-left:7px;color:var(--muted)}dialog{background:var(--white);border:2px solid var(--ink);border-radius:8px;box-shadow:7px 8px 0 #24343875;color:var(--ink);padding:34px;width:min(550px,calc(100% - 36px));max-height:calc(100dvh - 36px);overflow:auto}dialog::backdrop{background:#24343880;backdrop-filter:blur(3px)}dialog h2{font-size:27px;font-weight:900;margin:9px 0 18px}dialog ol{font-size:12px;padding-left:20px}dialog li{margin:12px 0}dialog p:not(.eyebrow){font-size:11px;color:var(--muted);margin-top:18px}.dialog-close{position:absolute;right:14px;top:10px;font-size:25px;background:transparent;padding:3px 8px}.result-dialog{text-align:center;width:min(480px,calc(100% - 30px));padding:25px 29px}.result-dialog .eyebrow{justify-content:center}.result-dialog h2{font-size:36px;margin:7px 0 0}.result-drawing{position:relative;margin:5px 0 -15px}.result-drawing canvas{width:100%;display:block}.result-drawing>span{position:absolute;right:6px;top:12px;background:var(--orange);border:2px solid var(--ink);border-radius:50%;width:61px;height:61px;display:grid;place-items:center;font-size:19px;font-weight:900;transform:rotate(9deg)}.result-time{display:flex;justify-content:center;align-items:baseline;gap:8px}.result-time strong{font-family:"Arial Black",Arial,sans-serif;font-size:49px;line-height:1.1;font-variant-numeric:tabular-nums}.result-time>span{font-size:12px;font-weight:800}.result-dialog p#result-message{margin:10px 0;font-size:11px;min-height:18px}.result-ranking{list-style:none;padding:0;margin:15px 0 20px;text-align:left;border-top:1px solid var(--line)}.result-ranking li{margin:0;display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--line);font-size:11px}.result-ranking li.player{font-weight:900;color:var(--blue)}.result-ranking span:last-child{font-family:Arial,sans-serif;font-weight:700}.result-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-actions button{font-size:12px;padding:12px 8px}.secondary{border:1.5px solid var(--ink);border-radius:3px;background:var(--white);font-weight:800}.text-button{background:transparent;font-size:10px;margin-top:20px;border-bottom:1px solid #b1bab1;padding:3px 2px}.result-dialog p.download-status{font-size:10px;margin:5px 0 0;min-height:15px}.result-dialog:focus-visible{outline:none}
@media(min-width:1350px){main{padding-top:47px}.intro{margin-bottom:40px}h1{font-size:61px}.drawing-wrap{margin:0 17px}.sample-row{padding-top:16px;padding-bottom:16px}}
@media(max-width:900px){.workshop{gap:25px;grid-template-columns:minmax(0,1.5fr) minmax(250px,1fr)}h1{font-size:43px}.intro-doodle{width:155px;margin-right:15px}.intro-doodle svg{width:150px}.intro-doodle span{font-size:10px}.little-lessons{font-size:9px}.little-lessons p>span{display:none}.shape-stats{gap:8px;padding-left:12px;padding-right:12px}.sample-row{gap:4px;padding-left:11px;padding-right:11px}.sample-row>span{margin-right:0}.sample-row button{padding:5px 8px}.paper-heading{padding-left:12px;padding-right:12px}.draw-tools{gap:6px}}
@media(max-width:680px){.site-header{padding:18px 20px 15px}.brand strong{font-size:17px}.brand{font-size:10px;gap:8px}.brand-wheel{font-size:33px}.header-actions{gap:8px}.small-tag{display:none}.icon-button{min-width:34px;height:34px;font-size:10px}main{padding:25px 19px 0}.intro{margin-bottom:22px;gap:10px}h1{font-size:36px;letter-spacing:-1px;margin-top:10px;line-height:1.25}h1 br{display:block}.eyebrow{font-size:8px;letter-spacing:1.1px}.intro-copy{font-size:10px;line-height:1.9}.intro-copy br{display:block}.intro-doodle{width:110px;margin:0 -3px 10px 0}.intro-doodle svg{width:110px;stroke-width:3.5}.intro-doodle span{font-size:8px;margin-top:0;letter-spacing:0}.title-mark:after{height:12px;bottom:2px}.workshop{grid-template-columns:1fr;gap:28px}.paper-heading{font-size:11px;padding-top:12px;padding-bottom:12px}.tool{font-size:10px}.drawing-wrap{margin:0 8px}.shape-stats{padding:12px 14px 0;gap:12px}.shape-description{padding:9px 14px 12px;font-size:9px}.sample-row{padding:10px 12px;gap:7px}.sample-row>span{font-size:9px;margin-right:3px}.sample-row button{padding:4px 9px;font-size:9px}.section-label{font-size:12px;margin-bottom:12px}.courses{gap:7px}.course{padding:9px 11px;gap:12px}.course-illustration{height:34px;width:39px;font-size:35px}.course strong{font-size:12px}.course small{font-size:8px}.course-description{font-size:9px}.cpu-selection{margin-top:13px}.best-line{margin:14px 0 12px}.little-lessons{margin:26px 0 10px;display:block;font-size:9px}.little-lessons p{margin:7px 0}.little-lessons p>span{display:inline-block;font-size:16px;width:19px}.start-note{font-size:9px}.start-button{font-size:13px;padding:14px 17px}footer{margin-top:20px;padding:19px 20px;font-size:8px;flex-wrap:wrap;gap:6px}footer>p{display:none}footer>span:first-child{font-size:8px}.race-heading h2{font-size:20px}.race-menu{gap:9px}.race-menu .tool{font-size:9px}.race-frame{height:clamp(330px,65dvh,500px);box-shadow:3px 4px 0 var(--ink)}.hud{left:12px;right:12px;top:14px}.hud>span:first-child{font-size:10px;padding:5px 9px}.hud>span:last-child{min-width:76px;padding:5px 8px}.hud b{font-size:19px}.race-progress{top:67px;left:15%;right:18%}.race-bottom{align-items:center;font-size:9px;gap:8px}.recover-button{font-size:11px;padding:9px 11px}.recover-button small{margin-left:2px;font-size:8px}.countdown{font-size:80px}.race-callout{font-size:13px;top:25%}.result-dialog{padding:23px 22px}.result-dialog h2{font-size:30px}.result-time strong{font-size:43px}.result-drawing>span{width:50px;height:50px;font-size:16px}.result-ranking li{font-size:10px}dialog{padding:29px 24px}dialog h2{font-size:23px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}.intro-doodle{transform:none}}