@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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small{color:var(--green);letter-spacing:.2em;margin-top:4px;font-size:9px;font-weight:800}.line-mark,.result-line-mark{border:4px solid var(--green);width:42px;height:42px;color:var(--ink);letter-spacing:-.05em;box-shadow:0 3px 0 var(--shadow);background:#fff;border-radius:50%;place-items:center;font-size:14px;font-weight:950;display:grid}.daily-stamp{justify-items:end;line-height:1;display:grid}.daily-stamp span{background:var(--red);color:#fff;letter-spacing:.16em;border-radius:999px;padding:3px 6px;font-size:8px;font-weight:950}.daily-stamp b{letter-spacing:.06em;margin-top:7px;font-size:10px}.intro-screen,.game-screen,.result-screen{min-height:calc(100dvh - 126px);padding:18px}.intro-screen{padding-top:0}.ticker{border-block:2px solid var(--green-dark);background:var(--green);color:var(--ink);white-space:nowrap;margin:0 -18px 12px;padding:8px 18px 7px;overflow:hidden;transform:rotate(-1.5deg)}.ticker-track{width:max-content;animation:54s linear infinite 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0;width:45%;height:69px;position:absolute;top:1px;left:46%}.lag-arc:before{background:var(--pink);content:"";border-radius:50%;width:7px;height:7px;position:absolute;top:-4px;left:-3px}.lag-arc:after{content:"";border-top:8px solid #ff796ba8;border-left:4px solid #0000;border-right:4px solid #0000;position:absolute;bottom:-7px;right:-5px}.lag-arc span{color:var(--red);letter-spacing:.08em;background:#fff;border-radius:999px;padding:2px 5px;font-size:6px;font-weight:950;position:absolute;top:-10px;right:17px}.lag-arc .travel-dot{background:var(--red);offset-path:inset(0 round 0 42px 0 0);offset-distance:0%;offset-rotate:0deg;border:2px solid #fff;border-radius:50%;width:7px;height:7px;margin:0;animation:2.8s ease-in-out infinite ride-one-stop;display:block;position:absolute;top:0;left:0;box-shadow:0 0 0 3px #ff796b29}.lag-arc .travel-dot:before,.lag-arc .travel-dot:after{content:none}.answer-stop{background:var(--blue-soft)}.third-stop{background:var(--green-soft)}.second-track i,.second-track i:before,.second-track i:after{background:var(--blue)}.second-track i:before,.second-track i:after{box-shadow:0 0 0 1px #4f67bc}.second-track span{color:var(--blue)}.second-track .lag-arc{border-color:#6685f570}.second-track .lag-arc:before{background:#9aacfa}.second-track .lag-arc:after{border-top-color:#6685f5a3}.second-track .lag-arc span{color:var(--blue)}.second-track .lag-arc .travel-dot{background:var(--blue);animation-delay:.95s;box-shadow:0 0 0 3px #6685f526}@keyframes ride-one-stop{0%{offset-distance:0%;opacity:0}10%{opacity:1}88%{opacity:1}to{offset-distance:50%;opacity:0}}.demo-entry{border-left:2px solid var(--blue);background:#fff;align-content:center;justify-items:center;display:grid}.demo-entry b{color:var(--blue);margin-top:1px;font-size:34px;font-weight:950;line-height:1}.demo-entry em{color:var(--muted);margin-top:3px;font-size:7px;font-style:normal;font-weight:900}@media (max-width:390px){.demo-stop{grid-template-columns:41px minmax(0,1fr) 89px}.demo-problem strong{font-size:39px}.held-answer b,.demo-entry b{font-size:29px}}.primary-button{border:2px solid var(--ink);background:var(--green);width:100%;min-height:70px;color:var(--ink);text-align:left;cursor:pointer;box-shadow:5px 5px 0 var(--shadow);border-radius:18px;margin-top:24px;padding:13px 66px 13px 18px;transition:transform .14s,box-shadow .14s;display:grid;position:relative;overflow:hidden}.home-actions{grid-template-columns:minmax(112px,.72fr) minmax(0,1.28fr);gap:10px;margin-top:24px;display:grid}.home-actions .primary-button{min-width:0;margin-top:0}.tutorial-button{border:2px solid var(--ink);background:var(--blue-soft);min-width:0;color:var(--ink);cursor:pointer;touch-action:manipulation;border-radius:18px;align-content:center;justify-items:start;padding:11px 12px;transition:transform .14s,box-shadow .14s;display:grid;box-shadow:4px 4px #cdd6fa}.tutorial-button span{letter-spacing:-.01em;font-size:17px;font-weight:950}.tutorial-button b{color:var(--blue);letter-spacing:.08em;margin-top:4px;font-size:8px}.tutorial-button:active{transform:translate(3px,3px);box-shadow:1px 1px #cdd6fa}.primary-button:active{box-shadow:1px 1px 0 var(--shadow);transform:translate(4px,4px)}.primary-button span{letter-spacing:-.02em;font-size:17px;font-weight:950}.primary-button b{letter-spacing:.16em;margin-top:3px;font-size:10px}.primary-button i{border-left:2px solid var(--ink);background:#fff;place-items:center;width:60px;font-size:30px;font-style:normal;display:grid;position:absolute;inset:0 0 0 auto}.best-ticket{border:2px dashed var(--green-dark);border-left:7px solid var(--yellow);color:var(--ink);background:#fff;border-radius:12px;grid-template-columns:1fr auto auto;align-items:center;gap:12px;margin-top:22px;padding:10px 10px 10px 14px;display:grid}.best-ticket>div{gap:4px;display:grid}.best-ticket>div span{letter-spacing:.08em;font-size:8px;font-weight:900}.best-ticket>b{font-size:28px}.best-ticket>div small{color:#696b66;text-transform:uppercase;font-size:10px}.best-ticket button{border:2px solid var(--ink);background:var(--green);min-width:64px;min-height:43px;color:var(--ink);cursor:pointer;box-shadow:2px 2px 0 var(--shadow);border-radius:10px;place-content:center;display:grid}.best-ticket button span{letter-spacing:.05em;font-size:9px;font-weight:950}.best-ticket button small{margin-top:2px;font-size:7px;font-weight:900}.best-ticket button:active{box-shadow:none;transform:translate(2px,2px)}.route-status{margin-bottom:16px}.status-numbers{grid-template-columns:1fr 1fr 1fr;margin-bottom:13px;display:grid}.status-numbers span{border-right:1px solid var(--line);gap:3px;display:grid}.status-numbers span:nth-child(2){justify-content:center}.status-numbers span:last-child{border-right:0;justify-content:end}.status-numbers small{color:var(--muted);letter-spacing:.14em;font-size:7px;font-weight:900}.status-numbers b{font-variant-numeric:tabular-nums;letter-spacing:.02em;font-size:15px}.route-map,.route-complete{justify-content:space-between;align-items:center;display:flex}.route-map{background:linear-gradient(#0000 5px,#669d166b 5px 8px,#0000 8px);height:14px}.route-map i,.route-complete i{border:1px solid var(--green);background:#fff;border-radius:50%;width:5px;height:5px}.route-map i.passed,.route-complete i{background:var(--green)}.route-map i.active{background:var(--green);width:13px;height:13px;box-shadow:0 0 0 2px var(--green);border:3px solid #fff}.station-sign{border-right:2px solid var(--green);border-left:2px solid var(--green);border-block:5px solid var(--green);background:var(--paper);min-height:72px;color:var(--ink);border-radius:13px;grid-template-columns:58px 1fr 46px;align-items:stretch;display:grid;overflow:hidden}.station-code{border-right:1px solid #b9b8b2;place-items:center;font-size:12px;font-weight:950;display:grid}.station-sign>div{grid-template-columns:1fr 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49px;position:relative}.tutorial-guide:before{background:var(--blue);color:#fff;content:"i";border-radius:50%;place-items:center;width:25px;height:25px;font-family:Georgia,serif;font-size:15px;font-weight:900;display:grid;position:absolute;top:50%;left:13px;transform:translateY(-50%)}.tutorial-guide>span{color:var(--blue);letter-spacing:.1em;font-size:7px;font-weight:950}.tutorial-guide p{margin:3px 0 0;font-size:10px;font-weight:650;line-height:1.4}.tutorial-guide p b{font-weight:950}.tutorial-guide+.problem-card{margin-top:10px}.playing-guide{padding-block:9px}.playing-guide+.answer-panel{margin-top:9px}.problem-card:before{background:var(--pink);content:"";border-radius:0 0 8px 8px;width:45px;height:6px;position:absolute;top:-1px;right:18px}.card-kicker{color:var(--muted);letter-spacing:.12em;font-size:8px;font-weight:900}.card-kicker 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b{font-size:8px}.reveal-button:active:not(:disabled){box-shadow:none;transform:translate(2px,2px)}.reveal-button:disabled{border-color:var(--green-dark);background:var(--green-soft);color:var(--green-dark);cursor:default;box-shadow:none}.keypad{grid-template-columns:repeat(3,1fr);gap:7px;display:grid}.keypad button{border:2px solid var(--ink);min-height:52px;color:var(--ink);cursor:pointer;touch-action:manipulation;background:#fff;border-radius:14px;font-size:22px;font-weight:900;transition:background 80ms,transform 80ms}.keypad button:active{background:var(--green-soft);transform:scale(.96)}.keypad .delete-key{color:var(--muted);letter-spacing:.08em;font-size:10px}.keypad .go-key{border-color:var(--green);background:var(--green);color:var(--ink);letter-spacing:.08em;font-size:13px}.keypad .go-key:disabled{opacity:.35;cursor:not-allowed}.is-wrong .answer-display{border-color:var(--red);animation:.26s shake}.is-wrong .problem-card{animation:.26s shake}.terminal-card{grid-template-columns:auto 1fr;align-items:center;min-height:130px;padding-top:23px;display:grid}.terminal-card .card-kicker{grid-column:1/3}.finish-flag{background:var(--red);color:#fff;border-radius:50%;place-items:center;width:67px;height:67px;margin-top:8px;font-size:27px;font-weight:950;display:grid}.terminal-card>p{text-align:left;margin-left:17px}.result-screen{padding-top:30px}.arrival-banner{background:var(--yellow);color:var(--ink);letter-spacing:.1em;border:2px solid var(--ink);border-radius:999px;padding:9px 12px;font-size:14px;font-weight:950;transform:rotate(-1deg)}.result-card{border:2px solid var(--ink);background:linear-gradient(145deg, transparent 74%, var(--blue-soft) 74%), white;text-align:center;box-shadow:8px 8px 0 var(--green);border-radius:26px;margin-top:21px;padding:28px 20px 22px;position:relative;overflow:hidden}.tutorial-result-card{background:radial-gradient(circle at 85% 12%, var(--green-soft) 0 58px, transparent 59px), white}.tutorial-flower{border:2px solid var(--ink);background:var(--pink);color:#fff;width:54px;height:54px;box-shadow:4px 4px 0 var(--yellow);border-radius:50%;place-items:center;margin:0 auto 15px;font-size:30px;display:grid}.tutorial-result-card h2{margin-top:8px;font-size:clamp(66px,20vw,96px)}.tutorial-recap{text-align:left;gap:7px;margin:20px 0 15px;display:grid}.tutorial-recap span{background:var(--green-soft);color:var(--green-dark);border-radius:9px;padding:8px 10px;font-size:9px;font-weight:900}.tutorial-result-card .tutorial-transfer-note{color:var(--muted);margin:0;font-size:9px}.result-line-mark{margin:0 auto 20px}.result-card>small{color:var(--muted);letter-spacing:.15em;font-size:9px;font-weight:950}.result-card h2{color:var(--green-dark);letter-spacing:-.08em;margin:3px 0 0;font-size:clamp(74px,24vw,116px);font-weight:950;line-height:1}.result-card>p{letter-spacing:.06em;margin:5px 0 25px;font-size:10px;font-weight:900}.result-stats{border-block:1px solid var(--line);grid-template-columns:repeat(3,1fr);padding:13px 0;display:grid}.result-stats div{border-right:1px solid var(--line);gap:4px;display:grid}.result-stats div:last-child{border:0}.result-stats span{color:var(--muted);letter-spacing:.1em;font-size:7px;font-weight:900}.result-stats b{font-size:19px}.route-complete{margin-top:20px}.route-complete i{width:6px;height:6px}.text-button{border:0;border-bottom:1px solid var(--muted);color:var(--muted);cursor:pointer;background:0 0;margin:22px auto 0;padding:5px;font-size:11px;font-weight:800;display:block}.site-footer{border-top:1px solid var(--line);color:#8b948e;letter-spacing:.1em;justify-content:space-between;min-height:50px;padding:16px 18px;font-size:8px;font-weight:800;display:flex}@keyframes shake{0%,to{transform:translate(0)}33%{transform:translate(-7px)}66%{transform:translate(7px)}}@media (min-width:621px){body{background:radial-gradient(circle at 20% 10%, #6685f529, transparent 30%), radial-gradient(circle at 80% 80%, #9bd43b33, transparent 35%), var(--cream);padding:28px 0}.app-shell{border:1px solid var(--line);border-radius:28px;min-height:calc(100dvh - 56px);box-shadow:0 35px 100px #3d56452e}}@media (max-height:760px){.game-screen{padding-top:12px}.route-status{margin-bottom:10px}.problem-card{margin-top:12px}.compact-card .equation{padding-block:15px 8px;font-size:54px}.answer-display{height:60px;font-size:42px}.keypad button{min-height:44px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}