.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.games-intro{position:relative;overflow:hidden;display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;margin-top:24px;padding:26px 32px;background:#f0edff;border:1px solid #e2ddf7;border-radius:25px}
.games-intro h1{font-size:clamp(38px,5vw,58px);line-height:.98;margin:12px 0 10px}
.games-intro p{color:#686c89;font-size:14px;max-width:460px;margin:0}
.legend{list-style:none;margin:0;padding:14px 16px;background:#fffefa;border:1px solid #e2ddf7;border-radius:16px;display:grid;gap:7px;font-size:12px;color:#565b7d}
.legend li{display:flex;align-items:center;gap:10px}
.sw{display:inline-block;width:16px;height:16px;border-radius:5px;border:2px solid #272c57;flex:none}
.sw-ground{background:#343b75}.sw-lava{background:#fa856c}.sw-coin{background:#ffcd68;border-radius:50%}.sw-goal{background:#53b398}.sw-player{background:#5b8def}.sw-erase{background:repeating-linear-gradient(45deg,#fff 0 3px,#e3e0e8 3px 6px)}
.studio{margin-top:18px;padding:16px 18px 14px}
.studio-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.mode-switch{display:inline-flex;gap:3px;padding:4px;background:#f3f1f8;border-radius:13px}
.mode-btn{border:0;background:transparent;border-radius:10px;padding:9px 16px;font-weight:700;font-size:13px;color:#6b6f8d;cursor:pointer}
.mode-btn.active{background:var(--ink);color:#fff}
.name-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.name-row input{border:1px solid #dedde7;border-radius:10px;padding:9px 12px;min-width:0;width:220px;background:#fff}
.button.small{min-height:38px;padding:0 13px}
.toolbar{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.tools{display:flex;gap:6px;flex-wrap:wrap}
.tool{display:inline-flex;align-items:center;gap:7px;border:1px solid #e3e0e8;background:#fff;border-radius:11px;padding:7px 11px;font-size:12px;font-weight:600;color:#565b7d;cursor:pointer}
.tool.active{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);background:#f6f4ff;color:var(--ink)}
.tool-actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.brush{font-size:12px;color:#6b6f8d;display:flex;align-items:center;gap:6px}.brush select{border:1px solid #dedde7;border-radius:9px;padding:6px 8px;background:#fff}
.photo-btn{cursor:pointer}
.hud{display:flex;gap:18px;align-items:center;flex-wrap:wrap;font-size:13px;color:#565b7d;margin-bottom:10px}.hud b{font-family:'Space Grotesk',Arial,sans-serif;font-size:18px;color:var(--ink)}.hud[hidden]{display:none}
.stage{position:relative;border-radius:16px;overflow:hidden;border:2px solid var(--ink);background:#f0edff;line-height:0}
#board{display:block;width:100%;height:auto;touch-action:none;cursor:crosshair}
.studio.playing #board{cursor:default}
.overlay{position:absolute;inset:0;display:grid;place-items:center;background:rgba(39,44,87,.35);line-height:1.5}.overlay[hidden]{display:none}
.overlay-card{background:#fffefa;border:2px solid var(--ink);border-radius:20px;padding:22px 26px;max-width:min(420px,90%);text-align:center;box-shadow:4px 5px 0 var(--ink)}
.overlay-card h3{font-size:26px;margin:0 0 6px}.overlay-card p{color:#5e6384;margin:0 0 16px;white-space:pre-line}
.overlay-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.touch{display:flex;justify-content:space-between;margin-top:10px;user-select:none;-webkit-user-select:none}.touch[hidden]{display:none}
.touch>div{display:flex;gap:10px}
.touch button{width:68px;height:58px;border-radius:16px;border:2px solid var(--ink);background:#fff;font-size:24px;color:var(--ink);box-shadow:2px 3px 0 var(--ink);touch-action:none}
.touch button.on{transform:translateY(2px);box-shadow:0 1px 0 var(--ink);background:#f0edff}
.touch .jump{background:#ffcd68}
.hint{font-size:11px;color:#81849a;margin:10px 2px 0}
.levels-section{padding-top:26px}
.level-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.level-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:0 5px 18px rgba(40,44,87,.035);display:flex;flex-direction:column;gap:8px}
.level-card img{width:100%;aspect-ratio:16/9;border-radius:10px;border:1px solid #e3e0e8;background:#f0edff;display:block}
.level-card h3{font-size:15px;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.level-card small{color:#8589a0;font-size:10px}
.level-card .row{display:flex;gap:6px;flex-wrap:wrap}.level-card .button{min-height:32px;padding:0 10px;font-size:11px}
.tag-sample{font-size:9px;font-weight:700;letter-spacing:.1em;color:#7367b4;background:#efeaff;border-radius:6px;padding:2px 6px;margin-left:6px;vertical-align:middle}
.paper-tips{margin-top:22px;padding:18px 22px}.paper-tips h2{font-size:19px;margin:0 0 8px}.paper-tips ol{margin:0;padding-left:20px;color:#5e6384;font-size:13px;display:grid;gap:4px}
.photo-dialog{border:2px solid var(--ink);border-radius:20px;padding:20px;max-width:min(860px,94vw);width:100%;background:#fffefa;color:var(--ink)}
.photo-dialog::backdrop{background:rgba(39,44,87,.45)}
.photo-dialog h3{margin:0 0 12px;font-size:21px}
.photo-compare{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.photo-compare figure{margin:0}.photo-compare img,.photo-compare canvas{width:100%;aspect-ratio:16/9;object-fit:contain;border:1px solid #e3e0e8;border-radius:10px;background:#f6f4ef;display:block}
.photo-compare figcaption{font-size:11px;color:#81849a;margin-top:4px}
.sens{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:14px 0 4px;font-size:13px;font-weight:600}.sens small{font-weight:400;color:#81849a}.sens input{accent-color:#7363c5}
.photo-msg{font-size:12px;color:#ba7055;min-height:18px;margin:4px 0 12px}
@media(max-width:760px){.games-intro{grid-template-columns:1fr;padding:22px 20px;margin-top:15px}.studio{padding:12px}.name-row input{width:150px}.photo-compare{grid-template-columns:1fr}}
@media(hover:none){.touch[data-auto]{display:flex}}
.button.photo-btn span{font-size:12px}.button.photo-btn span[aria-hidden]{font-size:15px}
.login-dialog{max-width:min(420px,94vw)}.login-help{color:#5e6384;font-size:13px;margin:0 0 12px}.login-field{display:grid;gap:6px;font-size:13px;font-weight:600}.login-field input{border:1px solid #dedde7;border-radius:10px;padding:10px 12px;font:inherit}#auth-btn[hidden]{display:none}

/* v2 */
.games-intro::before{content:"";position:absolute;inset:auto -40px -60px auto;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,#ffe3a3 0,#ffe3a300 70%);animation:floaty 6s ease-in-out infinite;pointer-events:none}
.games-intro h1{background:linear-gradient(90deg,#343b75,#7665c8 55%,#e46fd0);-webkit-background-clip:text;background-clip:text;color:transparent}
@keyframes floaty{50%{transform:translate(-20px,-14px) scale(1.06)}}
.legend-box{position:relative;background:#fffefa;border:1px solid #e2ddf7;border-radius:16px;padding:12px 16px;display:grid;gap:8px}
.legend-box .legend{background:none;border:0;padding:0;grid-template-columns:1fr 1fr;gap:6px 12px}
.legend b{font-weight:700;color:var(--ink)}
.legend-note{margin:0;font-size:11px;color:#8589a0}
.sw-spring{background:linear-gradient(#fa9a3c 0 45%,#343b75 45%)}.sw-enemy{background:#8a78df;border-radius:50% 50% 4px 4px}.sw-ice{background:linear-gradient(135deg,#e3f7ff,#bfe9f8)}.sw-break{background:#d9925a;background-image:linear-gradient(90deg,transparent 45%,rgba(90,45,20,.5) 45% 55%,transparent 55%),linear-gradient(transparent 45%,rgba(90,45,20,.5) 45% 55%,transparent 55%)}.sw-cloud{background:#fff;border-radius:8px}.sw-gem{background:#e46fd0;transform:rotate(45deg) scale(.85);border-radius:3px}
.sw-ground{box-shadow:2px -2px 0 #22275a}.sw-ice{box-shadow:2px -2px 0 #86c6df}.sw-break{box-shadow:2px -2px 0 #a5643a}
.tool{transition:transform .15s ease,box-shadow .15s ease}.tool:hover{transform:translateY(-2px);box-shadow:0 6px 12px rgba(40,44,87,.08)}.tool.active{transform:translateY(-2px)}
.stage{box-shadow:0 18px 40px rgba(39,44,87,.18),4px 5px 0 var(--ink)}
.studio.playing .stage{border-radius:18px}
.hud{gap:8px}.hud-pill{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #e3e0e8;border-radius:999px;padding:4px 12px 4px 6px;font-size:12px}
.hud-pill i{font-style:normal;display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:#efeaff;color:#5e4eb5;font-size:12px;font-weight:700}
.coin-pill i{background:#ffcd68;color:#7a5a33;box-shadow:0 2px 0 #c38d37}.coin-pill b{font-size:18px}
.coin-pill.pop{animation:pop .35s ease}@keyframes pop{40%{transform:scale(1.18)}}
.hud-spacer{flex:1}
.overlay{background:rgba(39,44,87,.4);backdrop-filter:blur(2px)}
.overlay-card{animation:cardin .45s cubic-bezier(.2,1.4,.4,1) both}@keyframes cardin{from{transform:scale(.6) rotate(-4deg);opacity:0}}
.trophy{width:64px;height:64px;margin:-50px auto 6px;border-radius:50%;background:#ffcd68;border:3px solid var(--ink);display:grid;place-items:center;font-size:34px;color:#fff;box-shadow:3px 4px 0 var(--ink);animation:spin 1.6s ease-in-out infinite alternate}@keyframes spin{to{transform:rotate(14deg) scale(1.06)}}
.level-card{transition:transform .2s ease,box-shadow .2s ease}.level-card:hover{transform:translateY(-4px) rotate(-.4deg);box-shadow:0 14px 28px rgba(40,44,87,.12)}
.photo-options{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin:14px 0 2px}.photo-options .sens{margin:0}
.check{display:inline-flex;align-items:center;gap:7px;font-size:13px}.check input{accent-color:#7363c5;width:16px;height:16px}
.sens-help{color:#81849a;font-size:11px}
.photo-compare canvas{aspect-ratio:auto}
@media(max-width:760px){.legend-box .legend{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.games-intro::before,.trophy,.overlay-card,.coin-pill.pop{animation:none}}

/* v3: character editor */
.sprites{margin-top:22px;padding:18px 20px}
.sprites-head{display:flex;justify-content:space-between;align-items:end;gap:14px;flex-wrap:wrap;margin-bottom:14px}.sprites-head h2{font-size:22px;margin:4px 0 4px}.sprites-head p{margin:0;color:#6e7190;font-size:13px}
.sprite-body{display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:20px;align-items:start}
#sprite-canvas{width:100%;aspect-ratio:1;border:2px solid var(--ink);border-radius:14px;box-shadow:4px 5px 0 var(--ink);touch-action:none;cursor:crosshair;image-rendering:pixelated;background:#fff}
.sprite-side{display:grid;gap:12px}
.palette{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px;max-width:360px}
.palette button{aspect-ratio:1;border-radius:10px;border:2px solid #e3e0e8;cursor:pointer;padding:0;transition:transform .12s ease}
.palette button.active{border-color:var(--ink);transform:scale(1.12);box-shadow:2px 2px 0 var(--ink)}
.palette button.clear-sw{background:repeating-conic-gradient(#e3e0e8 0 25%,#fff 0 50%) 0 0/12px 12px}
.sprite-tools,.sprite-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.sprite-preview{display:grid;gap:4px}.sprite-preview canvas{width:100%;max-width:360px;border-radius:12px;border:1px solid #e3e0e8;background:#efeaff}.sprite-preview small{color:#81849a;font-size:11px}
@media(max-width:760px){.sprite-body{grid-template-columns:1fr}}
.jump-row{display:flex;justify-content:flex-end;margin:-4px 0 10px}.jump-ctl{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#565b7d;background:#fff;border:1px solid #e3e0e8;border-radius:999px;padding:5px 14px}.jump-ctl input{accent-color:#7363c5;width:160px}.jump-ctl b{font-family:"Space Grotesk",Arial,sans-serif;font-size:16px;color:var(--ink);min-width:28px;text-align:right}
.jump-row{justify-content:space-between;gap:10px;flex-wrap:wrap}.players-switch{display:inline-flex;gap:3px;padding:3px;background:#f3f1f8;border-radius:999px}.players-switch button{border:0;background:transparent;border-radius:999px;padding:7px 14px;font-size:12px;font-weight:700;color:#6b6f8d;cursor:pointer}.players-switch button.active{background:var(--ink);color:#fff}
.toolbar[hidden]{display:none}