:root{color-scheme:dark;--bg:#0b1027;--panel:#121b38;--line:#2b395c;--muted:#b1bbd7;--ink:#f2f7ff;--cyan:#58e6e2;--gold:#ffe194;--pink:#ff81ba;--accent:var(--cyan)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 10% 0,#183044 0,transparent 45%),var(--bg);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,canvas:focus-visible{outline:3px solid #fff;outline-offset:4px}button{color:inherit}a{color:inherit}button:disabled{opacity:.5;cursor:default}[hidden]{display:none!important}.app{max-width:1280px;margin:auto;padding:0 36px}.topbar{height:92px;display:flex;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.back{text-decoration:none;font-size:14px;color:var(--muted);min-width:105px}.wordmark{display:flex;align-items:center;gap:10px;text-decoration:none;letter-spacing:2px;font-size:17px;font-weight:850}.wordmark b{color:var(--cyan)}.brand-prism{font-size:42px;font-weight:500;line-height:1;color:var(--cyan)}.top-actions{display:flex;gap:8px;margin-left:auto}.icon-btn,.text-btn,.secondary-btn{background:#192444;border:1px solid #425175;border-radius:9px;padding:9px 13px;font-weight:650;font-size:14px;min-height:42px}.icon-btn[aria-pressed=true]{color:var(--cyan);border-color:var(--cyan)}.text-btn{border-color:transparent;background:none;color:var(--muted)}.text-btn:hover{color:#fff}.icon-btn:hover,.secondary-btn:hover{background:#263557}.menu{padding:40px 0 14px}.menu-heading{display:grid;grid-template-columns:1.2fr 1fr;column-gap:40px;align-items:center}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:800;color:var(--cyan);margin:0 0 10px}.menu-heading .eyebrow{grid-column:1/-1}.menu h1{font-size:clamp(32px,4vw,48px);line-height:1.12;letter-spacing:-1.8px;margin:0 0 28px}.menu h1 span{color:var(--cyan)}.intro{font-size:17px;color:var(--muted);max-width:400px;margin-top:0}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.course-card{border:1px solid var(--line);background:linear-gradient(150deg,#172649,#101a34);border-radius:17px;padding:23px;text-align:left;position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:284px;transition:transform .18s,border-color .18s}.course-card:hover{transform:translateY(-3px);border-color:var(--card-color)}.course-card:nth-child(2){background:linear-gradient(150deg,#352649,#171a38)}.course-card:nth-child(3){background:linear-gradient(150deg,#323144,#131c32)}.course-num{font-size:12px;letter-spacing:2px;color:var(--card-color);font-weight:800}.course-card svg{position:absolute;width:146px;height:126px;right:14px;top:8px;opacity:.9}.course-card h2{font-size:25px;letter-spacing:-.5px;margin:72px 0 2px}.course-card p{font-size:14px;color:var(--muted);margin:0;max-width:230px}.course-card .launch{margin-top:20px;border-top:1px solid #45536b;padding-top:15px;color:var(--card-color);font-weight:750;display:flex;justify-content:space-between;gap:8px;font-size:14px}.course-card .best{font-size:12px;color:var(--muted);font-weight:400;white-space:nowrap}.mode-row{margin-top:26px;display:flex;align-items:center;justify-content:space-between;gap:24px}.mode-row fieldset{display:flex;gap:9px;margin:0;border:0;padding:0}.mode-row legend{font-size:14px;color:var(--muted);padding:0 0 8px}.mode-row label{display:flex;align-items:center;gap:8px;background:#101b35;border:1px solid var(--line);border-radius:10px;padding:12px;cursor:pointer}.mode-row label:has(input:checked){border-color:var(--cyan);background:#163138}.mode-row input{accent-color:var(--cyan)}.mode-row strong{font-size:14px}.mode-row small{display:block;font-size:12px;color:var(--muted)}.mode-row p{font-size:13px;color:var(--muted);margin:18px 0 0}.mode-row p span{color:#8292b5}.footer{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:#93a2c3;border-top:1px solid var(--line);padding:20px 0;margin-top:24px}.footer a{text-decoration:none}.run-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px}.course-title{text-align:center;display:flex;align-items:baseline;gap:12px}.course-title span{color:var(--accent);font-size:12px;font-weight:750;letter-spacing:1.2px;text-transform:uppercase}.course-title strong{font-size:17px}.hud{display:flex;gap:15px;align-items:center;padding:12px 0;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.progress-track{height:5px;background:#263455;flex:1;border-radius:3px}.progress-track span{display:block;height:100%;width:0;background:var(--accent);border-radius:3px}.mission{padding:13px 18px;display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-bottom:0;border-radius:13px 13px 0 0;background:#15213e}.mission-label{color:var(--accent);font-size:11px;font-weight:850;letter-spacing:1px}.mission strong{font-size:19px}.mission button{margin-left:auto;white-space:nowrap}.arena{height:350px;position:relative;border:1px solid var(--line);border-top:0;overflow:hidden;background:#0d1834;touch-action:none;user-select:none}.arena canvas{width:100%;height:100%;display:block;touch-action:none}.arena-prompt{position:absolute;inset:25px 12px auto;text-align:center;font-weight:800;font-size:24px;pointer-events:none;text-shadow:0 2px 10px #000;letter-spacing:-.5px}.beatbar{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);display:flex;gap:9px;pointer-events:none}.beatbar i{width:16px;height:4px;background:#4a617e;border-radius:3px}.beatbar i.on{background:var(--accent);box-shadow:0 0 10px var(--accent)}.attempt{position:absolute;bottom:9px;left:15px;color:#b6c4da;font-size:12px}.route-preview{border:1px solid var(--line);border-top:0;background:#111d38;border-radius:0 0 12px 12px;display:flex;align-items:center;justify-content:space-between;padding:10px 18px;gap:20px;min-height:106px}.route-heading{max-width:45%}.route-heading span{display:block;font-size:10px;font-weight:800;letter-spacing:1.5px;color:var(--accent)}.route-heading strong{font-size:16px}.route-options{display:flex;gap:18px}.route-options>div{display:grid;grid-template-columns:82px 70px;align-items:center;border-left:1px solid #354563;padding-left:16px}.route-options span{font-size:12px;font-weight:750;color:#d4e2f1}.route-options canvas{width:70px;height:60px}.route-options small{grid-column:1/-1;color:var(--muted);font-size:11px;max-width:160px}.play-bottom{display:flex;gap:20px;padding:16px 0;align-items:center}.feedback{font-size:15px;color:#d2dff2;flex:1;min-height:45px;display:flex;align-items:center;padding:0 14px;border-left:3px solid var(--accent)}.feedback.error{border-color:var(--gold);color:var(--gold)}.jump-btn{min-width:205px;border:0;border-bottom:4px solid #229b9c;border-radius:11px;background:var(--accent);color:#0b2030;font-size:23px;letter-spacing:1px;font-weight:850;padding:10px 26px;box-shadow:0 5px 20px #0003;touch-action:none;user-select:none}.jump-btn:active{transform:translateY(2px);border-bottom-width:2px}.jump-btn span{display:block;font-size:11px;font-weight:650;letter-spacing:0}.game-hint{margin:0;color:var(--muted);font-size:12px;max-width:920px}.overlay{position:fixed;inset:0;z-index:10;background:#050b1ccc;backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;padding:24px;overflow:auto}.lesson-panel,.result-panel,.small-panel{width:min(900px,100%);border:1px solid #455572;border-radius:22px;background:linear-gradient(145deg,#182746,#0c172e);padding:28px;box-shadow:0 25px 100px #0006}.lesson-top{display:flex;align-items:center;justify-content:space-between}.lesson-top .eyebrow{margin:0}.lesson-panel h2,.result-panel h2,.small-panel h2{font-size:32px;letter-spacing:-.8px;margin:14px 0 22px;line-height:1.1}.lesson-body{display:grid;grid-template-columns:1fr 1.1fr;gap:30px}.lab{border:1px solid #3c506f;border-radius:14px;background:#0c1932;padding:14px;text-align:center}.lab canvas{width:100%;height:200px}.lab-controls{display:flex;justify-content:center;gap:8px}.lab p{font-size:14px;margin:10px 0 0;color:var(--accent);min-height:42px}.lesson-copy p{font-size:17px;line-height:1.55;margin:0 0 14px}.lesson-copy ul{padding-left:21px;color:#b8c8e0;font-size:15px}.lesson-copy li{margin:9px 0}.route-tip{padding:15px;border-left:3px solid var(--accent);background:#20314c;margin-top:20px;border-radius:0 8px 8px 0}.route-tip strong{font-size:14px;color:var(--accent)}.route-tip p{font-size:14px;margin:5px 0 0;color:#d4e4f7}.lesson-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:25px;padding-top:20px;border-top:1px solid #3e4b65}.lesson-footer p{max-width:360px;color:var(--muted);font-size:13px;margin:0}.primary-btn{border:0;background:var(--accent);color:#0b2030;border-radius:10px;padding:13px 21px;min-height:48px;font-size:16px;font-weight:800}.secondary-btn{padding:12px 20px;font-size:15px}.small-panel{max-width:440px;text-align:center}.small-panel>button{display:block;margin:12px auto;width:100%}.small-panel p{color:var(--muted)}.pause-options{display:flex;gap:10px;justify-content:center}.pause-options div{flex:1}.pause-options canvas{width:100%;height:100px}.pause-options span{font-size:12px}.result-panel{max-width:660px;text-align:center}.result-panel h2{margin:10px 0}.result-orbit{font-size:82px;color:var(--accent);height:106px;line-height:1.1}.result-panel>p{color:var(--muted);font-size:16px}.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:25px 0}.result-stats div{background:#0b1830;border:1px solid #354560;border-radius:12px;padding:12px}.result-stats strong{display:block;color:var(--accent);font-size:27px}.result-stats span{font-size:12px;color:var(--muted)}.result-skills{text-align:left;font-size:14px}.result-skills div{border-top:1px solid #33435f;padding:10px 0;display:flex;justify-content:space-between;gap:12px}.result-skills strong{font-size:14px;color:var(--accent);white-space:nowrap}.result-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.result-panel .result-note{font-size:12px;margin:20px 0}.skip{position:fixed;top:-100px;left:10px;padding:12px;background:#fff;color:#000;z-index:100}.skip:focus{top:8px}@media(min-width:1400px){.arena{height:380px}}@media(max-width:800px){.app{padding:0 20px}.topbar{height:76px;gap:13px}.wordmark{font-size:14px;letter-spacing:1px}.back{min-width:0}.top-actions{gap:5px}.top-actions button{font-size:12px;padding:7px 9px;min-height:40px}.menu{padding-top:28px}.menu-heading{grid-template-columns:1fr}.intro{font-size:15px;max-width:620px}.menu h1{margin-bottom:12px}.course-grid{gap:10px}.course-card{padding:17px;min-height:273px}.course-card svg{width:118px;right:4px}.course-card h2{font-size:20px}.course-card p{font-size:13px}.course-card .launch{font-size:12px;flex-direction:column;gap:2px;margin-top:auto}.mode-row{align-items:flex-start;flex-direction:column;gap:0}.mode-row fieldset{width:100%}.mode-row label{flex:1}.footer{flex-wrap:wrap}.mission strong{font-size:17px}.mission-label{display:none}.arena{height:330px}.route-options>div{grid-template-columns:60px 55px;padding-left:10px}.route-options canvas{width:55px}.route-options span{font-size:10px}.route-options{gap:9px}.route-heading strong{font-size:14px}.route-options small{display:none}.lesson-body{gap:20px}.lesson-copy p{font-size:16px}.lesson-panel{padding:24px}.lesson-panel h2{font-size:29px}.lesson-copy li{font-size:14px}.lab canvas{height:175px}.lab-controls button{font-size:12px;padding:8px}.jump-btn{min-width:160px}.feedback{font-size:14px}.footer span:nth-child(2){display:none}}@media(max-width:540px){.app{padding:0 12px}.topbar{height:64px;gap:10px}.back{font-size:12px}.wordmark{font-size:12px;gap:5px}.brand-prism{font-size:29px}.top-actions button{font-size:10px;min-height:35px;padding:5px 7px}.top-actions{gap:4px}.menu{padding-top:23px}.menu h1{font-size:34px;letter-spacing:-1px}.menu .eyebrow{font-size:10px}.intro{font-size:14px;margin-bottom:20px}.course-grid{grid-template-columns:1fr;gap:10px}.course-card{min-height:135px;padding:17px 19px 13px}.course-card svg{width:94px;height:97px;right:17px;top:9px}.course-num{font-size:10px}.course-card h2{margin:3px 0;font-size:22px}.course-card p{font-size:12px;max-width:calc(100% - 80px)}.course-card .launch{margin-top:12px;padding-top:8px;flex-direction:row;font-size:12px}.course-card .best{font-size:11px}.mode-row{margin-top:19px}.mode-row label{padding:9px}.mode-row fieldset{gap:7px}.mode-row small{font-size:10px}.mode-row strong{font-size:12px}.mode-row p{font-size:12px}.footer{font-size:11px;padding:15px 0;margin-top:18px}.run-top{gap:6px;padding-top:9px}.run-top>.text-btn{padding-left:0}.course-title{flex-direction:column;gap:0;align-items:center}.course-title span{font-size:9px}.course-title strong{font-size:14px}.run-top button{font-size:12px;min-height:38px;padding:7px 10px}.hud{gap:9px;font-size:10px;padding:9px 0}.mission{padding:8px 11px;gap:5px;min-height:54px}.mission strong{font-size:15px}.mission button{font-size:11px;padding:5px;min-height:34px}.arena{height:300px}.arena-prompt{font-size:20px;top:20px}.route-preview{padding:7px 10px;gap:8px;min-height:84px}.route-heading{max-width:34%}.route-heading strong{font-size:12px;line-height:1.3;display:block}.route-heading span{font-size:8px}.route-options{gap:4px;flex:1;justify-content:flex-end}.route-options>div{grid-template-columns:1fr;padding:0 6px;text-align:center}.route-options canvas{width:64px;height:48px}.route-options span{font-size:9px}.play-bottom{padding:11px 0;gap:10px;align-items:stretch}.feedback{padding:0 8px;min-height:70px;font-size:12px}.jump-btn{min-width:118px;padding:8px 12px;font-size:22px}.jump-btn span{font-size:9px}.game-hint{font-size:10px;line-height:1.45}.overlay{padding:13px;align-items:center}.lesson-panel{padding:18px;max-height:calc(100dvh - 26px);overflow:auto;border-radius:17px}.lesson-panel h2{font-size:25px;margin:9px 0 14px}.lesson-body{grid-template-columns:1fr;gap:13px}.lab{padding:10px;display:grid;grid-template-columns:1fr 1fr;align-items:center}.lab canvas{height:130px;width:100%;grid-row:1/3}.lab-controls{flex-direction:column;gap:6px}.lab p{grid-column:1/-1;font-size:12px;min-height:0;margin-top:7px}.lab-controls button{padding:7px;font-size:11px;min-height:34px}.lesson-copy p{font-size:14px;margin:0 0 8px}.lesson-copy ul{margin:9px 0;font-size:12px}.lesson-copy li{margin:4px 0;font-size:12px}.route-tip{margin-top:12px;padding:10px}.route-tip strong{font-size:12px}.route-tip p{font-size:12px;margin-top:4px}.lesson-footer{margin-top:14px;padding-top:14px;gap:10px}.lesson-footer p{font-size:11px;max-width:150px}.lesson-footer .primary-btn{padding:11px 14px;font-size:13px}.lesson-top .eyebrow{font-size:10px}.lesson-top .text-btn{font-size:11px;padding:5px}.result-panel{padding:22px 18px;max-height:calc(100dvh - 26px);overflow:auto}.result-panel h2{font-size:26px}.result-panel>p{font-size:14px}.result-stats strong{font-size:25px}.result-stats span{font-size:10px}.result-stats{gap:7px}.result-skills div{font-size:12px}.result-skills strong{font-size:12px}.result-orbit{font-size:64px;height:78px}}@media(max-height:600px) and (min-width:541px){.topbar{height:55px}.arena{height:240px}.lesson-panel{max-height:94dvh;overflow:auto}.lesson-body{grid-template-columns:.9fr 1.1fr}.lab canvas{height:140px}.lesson-copy p{font-size:14px}.lesson-panel h2{margin:7px 0 13px}.lesson-footer{margin-top:12px;padding-top:12px}.footer{display:none}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.feedback-diagram{width:64px;height:58px;flex:0 0 64px;margin-right:8px}.feedback span{flex:1}@media(max-width:540px){.feedback-diagram{width:42px;height:48px;flex-basis:42px;margin-right:5px}}
/* Keep the action and jump control together on short laptop and phone screens. */
.app:has(#play:not([hidden])) .topbar{height:64px}.run-top{padding-top:8px}.run-top button{min-height:36px;padding:6px 10px}.hud{padding:8px 0}.mission{padding:6px 14px}.mission .text-btn{min-height:34px}.arena{height:clamp(240px,calc(100dvh - 480px),380px)}.route-options small{display:none}.route-preview{min-height:80px;padding:8px 15px}.play-bottom{padding:10px 0}.jump-btn{font-size:21px;line-height:1.2;padding:10px 24px}.jump-btn span{margin-top:3px}@media(max-width:540px){.arena{height:clamp(240px,calc(100dvh - 415px),300px)}.mission{padding:7px 10px}.route-preview{padding:7px 10px;min-height:80px}.jump-btn{min-width:118px;font-size:21px;padding:10px 12px}.run-top>.text-btn{padding-left:0}}@media(max-height:600px) and (min-width:541px){.app:has(#play:not([hidden])) .topbar{height:48px}.arena{height:240px}.route-preview{min-height:64px;padding:4px 12px}.route-options canvas{height:48px}.play-bottom{padding:6px 0}}
.safe-stay{margin-left:10px;white-space:nowrap;font-size:12px;padding:7px}.feedback.error:has(.safe-stay){flex-wrap:wrap;gap:6px}.feedback.error:has(.safe-stay) span{min-width:120px}

/* Endless run selection and readable, steady geometry previews. */
.mode-row{margin:0 0 24px;align-items:flex-end}.mode-row fieldset{display:grid;grid-template-columns:repeat(4,1fr);flex:1}.mode-row label{min-width:0}.mode-row p{max-width:260px}.course-card{min-height:308px}.course-card .launch{align-items:center}.start-world{color:var(--card-color);background:none;border:0;padding:8px 0;text-align:left;font-weight:800;min-height:44px;font-size:14px}.lab-link{background:none;border:0;text-align:left;padding:5px 0;color:var(--muted);font-size:12px;text-decoration:underline;min-height:36px}.endless-note{color:var(--muted);font-size:13px;margin:18px 0 0;max-width:900px}.hud{flex-wrap:wrap}.endless-badge{color:var(--accent);font-size:24px;line-height:1}.hud #pace-label{margin-left:auto}.hud #run-best{color:var(--accent)}.route-heading small{display:block;font-size:11px;color:var(--muted);margin-top:3px;line-height:1.3}.lesson-footer{flex-wrap:wrap}.lesson-footer p{max-width:240px}.course-card .best{white-space:normal;text-align:right}.result-panel .result-note{font-size:13px}.course-card:has(button:focus-visible){border-color:var(--card-color)}
@media(max-width:1000px){.mode-row{flex-direction:column;align-items:stretch;gap:8px}.mode-row p{max-width:none;margin:0}.course-card .launch{flex-direction:column;align-items:flex-start}.course-card .best{text-align:left}}
@media(max-width:540px){.mode-row fieldset{grid-template-columns:repeat(2,1fr)}.mode-row label{min-height:60px}.course-card{min-height:172px}.course-card .launch{flex-direction:row;align-items:center;margin-top:5px;padding-top:5px}.start-world{font-size:13px}.lab-link{min-height:32px;padding:3px 0}.endless-note{font-size:12px}.route-heading small{font-size:10px}.hud{gap:8px;font-size:10px}.hud #run-best{display:none}.lesson-footer p{display:none}.lesson-footer .text-btn{width:100%;text-align:left;padding:5px 0;min-height:32px}.lesson-footer button{flex:1;font-size:12px;padding:10px 8px;white-space:nowrap}.route-options canvas{width:64px;height:56px}.route-heading{max-width:38%}}

@media(min-width:801px){.route-options>div{grid-template-columns:82px 96px}.route-options canvas{width:96px;height:76px}}

/* Read a changed target at the center before the world starts moving again. */
.start-world{display:inline-flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid var(--card-color);border-radius:10px;background:#0b162e;padding:10px 14px;min-height:54px;font-size:23px;line-height:1.2;color:var(--ink);white-space:nowrap}
.start-world span{color:var(--card-color)}.start-world:hover{background:#223752}.course-card .launch{gap:12px;align-items:flex-start;flex-direction:column}.course-card .best{font-size:12px;text-align:left}.lesson-footer #lesson-run{font-size:22px;padding:12px 20px}
.target-cue{position:absolute;z-index:2;left:50%;top:10px;transform:translateX(-50%);width:max-content;max-width:calc(100% - 24px);border:1px solid #61728f;border-radius:11px;background:#081429f2;box-shadow:0 4px 20px #0003;text-align:center;pointer-events:none;padding:7px 15px;color:var(--ink);line-height:1.25}
.target-cue .target-lead{font-size:12px;color:#d5e0f2;margin-right:5px}.target-cue strong{font-size:19px;font-weight:900;letter-spacing:.3px}.target-rule,.target-controls,.target-ready{display:none}
.target-cue[data-state=intro]{top:50%;transform:translate(-50%,-50%);width:min(570px,calc(100% - 32px));padding:21px 25px;border:2px solid var(--accent);border-radius:17px;box-shadow:0 12px 50px #0008;background:#0b1631}
.target-cue[data-state=intro] .target-lead{display:block;font-size:17px;margin:0 0 6px;color:#d6e5fa}.target-cue[data-state=intro] strong{display:block;font-size:clamp(26px,3vw,35px);line-height:1.1;color:var(--accent);letter-spacing:.4px}.target-cue[data-state=intro] .target-rule{display:block;margin-top:9px;font-size:16px;color:#f1f6ff}.target-cue[data-state=intro] .target-controls{display:block;margin-top:15px;padding-top:12px;border-top:1px solid #415473;font-size:12px;color:#bacbe2}.target-controls b{margin:0 7px}.target-cue[data-state=intro] .target-ready{display:block;margin-top:8px;font-size:11px;font-weight:750;letter-spacing:1px;color:var(--accent)}
.arena-prompt{top:60px;font-size:18px}
@media(max-width:540px){.start-world{font-size:23px;min-height:52px;padding:10px 14px}.course-card .launch{flex-direction:row;align-items:center}.course-card .best{max-width:100px;text-align:right}.lesson-footer #lesson-run{font-size:20px}.target-cue{max-width:calc(100% - 16px);padding:6px 10px;line-height:1.15}.target-cue .target-lead{display:block;font-size:10px;margin:0 0 2px}.target-cue strong{font-size:16px}.target-cue[data-state=intro]{width:calc(100% - 28px);padding:17px 13px}.target-cue[data-state=intro] .target-lead{font-size:14px}.target-cue[data-state=intro] strong{font-size:27px}.target-cue[data-state=intro] .target-rule{font-size:13px}.target-cue[data-state=intro] .target-controls{font-size:10px;margin-top:11px;padding-top:10px}.target-controls b{margin:0 3px}.target-cue[data-state=intro] .target-ready{margin-top:6px;font-size:10px}.arena-prompt{top:62px;font-size:16px}}

/* The full card leaves the arena completely clear during play. The mission
   strip directly above it keeps the same explicit instruction in view. */
.target-cue[data-state=compact]{visibility:hidden}
.mission strong{font-size:18px;line-height:1.3}.mission-label{white-space:nowrap}
@media(max-width:540px){.mission strong{font-size:14px}}
@media(min-width:541px) and (max-width:1000px){.start-world{font-size:21px;gap:8px;padding:10px;max-width:100%}}
@media(min-width:541px) and (max-width:800px){.start-world{font-size:20px}.start-world span{display:none}}

/* Fixed courses share the existing world cards and leave Endless one tap away. */
.play-mode-switch{display:flex;gap:8px;padding:5px;background:var(--bg);border:1px solid var(--line);border-radius:14px;width:fit-content;max-width:100%;margin:0 0 24px}
.play-mode-switch button{background:transparent;border:1px solid transparent;border-radius:9px;padding:10px 24px;color:var(--muted);font-weight:800;font-size:17px;min-height:64px;text-align:left}
.play-mode-switch button span{display:block;font-size:12px;font-weight:500}
.play-mode-switch button[aria-pressed=true]{background:var(--panel);color:var(--cyan);border-color:var(--cyan)}
.play-mode-switch button:hover{color:var(--ink)}
.attempt-summary{margin:-12px 0 24px;color:var(--muted);font-size:13px;line-height:1.5;font-variant-numeric:tabular-nums}
.attempt-count{display:inline-block;padding:4px 9px;border:1px solid var(--accent);border-radius:6px;background:var(--panel);color:var(--accent);font-size:13px;font-weight:800;white-space:nowrap}
.result-stats:has(>div:nth-child(4)){grid-template-columns:repeat(4,minmax(0,1fr))}
.result-stats>div{min-width:0}
@media(max-width:540px){.attempt-summary{font-size:12px;margin:-8px 0 20px}.attempt-count{font-size:12px;padding:3px 7px}.result-stats:has(>div:nth-child(4)){grid-template-columns:repeat(2,minmax(0,1fr))}}
.obstacle-guide{padding:13px 16px;margin:0 0 24px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
.obstacle-guide h2{margin:0 0 10px;font-size:11px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted)}
.obstacle-guide ul{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px 16px;list-style:none;padding:0;margin:0}
.obstacle-guide li{display:flex;align-items:center;gap:10px;min-width:0}
.obstacle-guide svg{width:38px;height:34px;flex:0 0 38px}
.obstacle-guide .hazard-icon{color:var(--pink)}.obstacle-guide .surface-icon{color:var(--cyan)}.obstacle-guide .gap-icon{color:var(--gold)}
.obstacle-guide strong{display:block;font-size:12px;color:var(--ink)}.obstacle-guide small{display:block;font-size:11px;line-height:1.3;color:var(--muted)}
@media(max-width:800px){.obstacle-guide ul{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.obstacle-guide li{gap:8px}}
@media(max-width:540px){.obstacle-guide{padding:12px;margin-bottom:20px}.obstacle-guide ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.obstacle-guide svg{width:32px;height:30px;flex-basis:32px}.obstacle-guide strong{font-size:11px}.obstacle-guide small{font-size:10px}}
.levels-intro{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;margin:0 0 24px;color:var(--muted);font-size:13px}
.levels-intro p{margin:0;max-width:640px}
.levels-intro strong{color:var(--ink);font-size:14px}
.level-speed-row{max-width:820px}
.level-speed-row fieldset{min-width:0;width:100%}
.level-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.level-card{min-height:385px;--card-color:var(--cyan)}
.level-card p{max-width:none;margin-bottom:15px}
.level-card h2{line-height:1.2;margin-bottom:8px}
.level-meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;font-size:11px;color:var(--muted)}
.level-meta span{padding:3px 8px;border:1px solid var(--line);border-radius:6px;background:var(--bg)}
.level-best{font-size:12px;font-weight:650;color:var(--card-color);margin-bottom:6px}
.level-meter{height:5px;background:var(--line);border-radius:5px;overflow:hidden;margin-bottom:18px}
.level-meter span{display:block;height:100%;background:var(--card-color);border-radius:inherit}
.level-card .launch{margin-top:auto;padding-top:14px}
.level-card .start-world{font-size:20px;min-height:48px}
.level-card .lab-link{min-height:40px}
#level-progress{appearance:none;-webkit-appearance:none;border:0;border-radius:5px;overflow:hidden;background:var(--line);color:var(--accent);accent-color:var(--accent);height:6px;flex:1 1 90px;min-width:60px;max-width:200px;width:0}
#level-progress::-webkit-progress-bar{background:var(--line);border-radius:5px}
#level-progress::-webkit-progress-value{background:var(--accent);border-radius:5px}
#level-progress::-moz-progress-bar{background:var(--accent);border-radius:5px}
@media(max-width:1000px){.level-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.levels-intro{gap:24px}.level-card .launch{flex-direction:row;align-items:center;flex-wrap:wrap}.level-card .start-world{max-width:100%}}
@media(max-width:540px){.play-mode-switch{width:100%;margin-bottom:20px;gap:4px}.play-mode-switch button{flex:1;padding:9px 14px;min-width:0;font-size:16px}.play-mode-switch button span{font-size:11px}.levels-intro{grid-template-columns:1fr;gap:12px;margin-bottom:18px;font-size:12px}.levels-intro strong{font-size:13px}.level-grid{grid-template-columns:1fr;gap:12px}.level-card{min-height:270px;padding:18px}.level-card h2{max-width:calc(100% - 88px);margin:8px 0;font-size:23px}.level-card p{max-width:calc(100% - 80px);min-height:40px;margin-bottom:14px}.level-meta{margin-bottom:10px}.level-card .launch{margin-top:auto;gap:10px;padding-top:10px}.level-card .start-world{font-size:20px}.level-card .lab-link{font-size:12px}.level-meter{margin-bottom:14px}#level-progress{max-width:110px}}


.world-board-menu{display:flex;justify-content:flex-end;margin-bottom:18px}.world-board-menu .worldboard-launch{width:auto;max-width:100%}.result-panel{max-height:calc(100dvh - 48px);overflow:auto}#world-board-result{text-align:left}#world-board-result:empty{display:none}