:root{--ink: #1d1140;--ink-soft:#6d5a96;--cream: #fffaf0;--sun: #fff59a;--mint: #caf3e0;--lilac: #f4eeff;--pink: #ff5c7a;--orange: #ff8a3d;--green: #3fc97a;--blue: #3d7bff;--white: #ffffff;--radius-lg: 28px;--radius-md: 18px;--stack-shadow: 0 8px 0 var(--ink);--stack-shadow-sm: 0 4px 0 var(--ink)}*{box-sizing:border-box}html,body{margin:0;padding:0}#root{min-height:100vh}body{min-height:100vh;font-family:Fredoka,system-ui,-apple-system,sans-serif;color:var(--ink);background:linear-gradient(160deg,#ffe6f0,#fff6d9 45%,#d9f0ff);background-attachment:fixed;-webkit-font-smoothing:antialiased;overflow-x:hidden}button{font-family:inherit}:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}.app{max-width:1340px;margin:0 auto;padding:28px 32px 40px;display:grid;grid-template-columns:1fr 420px;grid-template-rows:auto 1fr;gap:22px;position:relative;min-height:100vh}.dots{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0}.dots b{position:absolute;border-radius:50%;box-shadow:0 2px #1d114038}.header{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1;gap:14px}.brand{display:flex;align-items:center;gap:14px}.logo{width:54px;height:54px;border-radius:14px;background:var(--ink);padding:5px;display:grid;grid-template-columns:repeat(3,1fr);gap:3px;box-shadow:0 6px 0 var(--blue);flex-shrink:0}.logo i{border-radius:3px;display:block}.avatar{width:58px;height:58px;border-radius:50%;background-color:#d9c5ff;background-repeat:no-repeat;background-size:180%;background-position:44% 22%;border:3px solid var(--ink);box-shadow:0 6px 0 var(--blue);flex-shrink:0;display:block}h1{margin:0;font-size:26px;font-weight:700;letter-spacing:-.5px;line-height:1.05}.tagline{margin:3px 0 0;font-size:14px;color:var(--ink-soft);font-weight:500}.streak{display:inline-flex;align-items:center;gap:8px;background:var(--white);border:3px solid var(--ink);border-radius:999px;padding:8px 16px;font-size:14px;font-weight:600;box-shadow:var(--stack-shadow-sm);flex-shrink:0}.streak-emoji{font-size:18px;line-height:1}.stage{position:relative;z-index:1;background:var(--white);border:3px solid var(--ink);border-radius:var(--radius-lg);padding:18px;box-shadow:var(--stack-shadow);display:flex;flex-direction:column;min-height:520px;overflow:hidden}.stage-head{display:flex;gap:10px;padding:2px 6px 12px;flex-wrap:wrap}.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--ink-soft);background:var(--lilac);padding:6px 14px;border-radius:999px}.chip.active{background:var(--sun);color:var(--ink);border:2px solid var(--ink);padding:4px 12px}.cube-play{flex:1;position:relative;border-radius:22px;background:radial-gradient(ellipse at 50% 30%,#fff9d9,#ffe0c2 55%,#ffc5cc);overflow:hidden;min-height:380px}.stripes{position:absolute;left:0;right:0;bottom:0;height:70px;background:repeating-linear-gradient(135deg,#ffb4c1 0,#ffb4c1 18px,#ffd5dc 18px,#ffd5dc 36px);border-top:3px solid var(--ink)}.puddle{position:absolute;left:50%;bottom:48px;transform:translate(-50%);width:260px;height:28px;border-radius:50%;background:radial-gradient(ellipse,#1d114052,#1d114000 70%);z-index:1}.cube-slot{position:absolute;top:6%;right:6%;bottom:24%;left:6%;z-index:2;touch-action:none}.drag-hint{position:absolute;bottom:18px;left:50%;transform:translate(-50%);background:var(--ink);color:var(--white);padding:8px 16px;border-radius:999px;font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:8px;z-index:3;white-space:nowrap}.popup{position:fixed;z-index:1000;background:var(--white);border:3px solid var(--ink);border-radius:18px;box-shadow:var(--stack-shadow);padding:10px 12px;animation:popIn .18s cubic-bezier(.2,1.2,.3,1)}@keyframes popIn{0%{opacity:0;transform:scale(.85) translateY(6px)}to{opacity:1;transform:scale(1) translateY(0)}}.popup-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.popup-sw{width:40px;height:40px;border:2.5px solid var(--ink);border-radius:10px;cursor:pointer;padding:0;box-shadow:0 2px 0 var(--ink);transition:transform .1s ease,box-shadow .1s ease}.popup-sw:hover{transform:translateY(-2px);box-shadow:0 4px 0 var(--ink)}.popup-sw:active{transform:translateY(0);box-shadow:0 1px 0 var(--ink)}.panel{position:relative;z-index:1;background:var(--white);border:3px solid var(--ink);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--stack-shadow);display:flex;flex-direction:column;gap:16px;align-self:start}.step-tag{display:inline-flex;align-items:center;gap:10px;background:var(--sun);border:2.5px solid var(--ink);padding:4px 14px 4px 6px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;align-self:flex-start}.step-tag.solve{background:var(--mint)}.step-num{width:22px;height:22px;border-radius:50%;background:var(--ink);color:var(--white);display:grid;place-items:center;font-size:12px;font-weight:700}.panel h2{margin:0;font-size:22px;font-weight:700;letter-spacing:-.3px;line-height:1.2}.panel p{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.5}.btn-row{display:flex;gap:10px}.btn{cursor:pointer;padding:14px 16px;border:3px solid var(--ink);border-radius:var(--radius-md);font-weight:700;font-family:inherit;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:transform .1s ease,box-shadow .1s ease;touch-action:manipulation}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--ink);color:var(--white);font-size:17px;box-shadow:0 6px 0 var(--blue);flex:1}.btn-primary.hot{box-shadow:0 6px 0 var(--orange)}.btn-primary.pink{box-shadow:0 6px 0 var(--pink)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 0 var(--blue)}.btn-primary.hot:hover:not(:disabled){box-shadow:0 8px 0 var(--orange)}.btn-primary.pink:hover:not(:disabled){box-shadow:0 8px 0 var(--pink)}.btn-primary:active:not(:disabled){transform:translateY(2px);box-shadow:0 2px 0 var(--blue)}.btn-ghost{background:var(--white);color:var(--ink);font-size:15px;flex:1;box-shadow:var(--stack-shadow-sm)}.btn-ghost:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 0 var(--ink)}.btn-ghost:active:not(:disabled){transform:translateY(2px);box-shadow:0 1px 0 var(--ink)}.btn-big{padding:18px 20px;font-size:19px}.scan-preview{padding:14px;border-radius:16px;background:#e8f9ef;border:2.5px solid var(--green);display:flex;flex-direction:column;gap:10px;animation:popIn .3s ease}.scan-label{font-size:13px;font-weight:700;color:var(--ink)}.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;width:72px;height:72px;padding:4px;background:var(--ink);border-radius:8px}.preview-grid i{border-radius:2px;display:block}.preview-actions{display:flex;gap:6px}.btn-mini{padding:6px 10px;font-size:12px;font-weight:700;border:2px solid var(--ink);border-radius:8px;cursor:pointer;font-family:inherit}.btn-mini.dark{background:var(--ink);color:var(--white)}.btn-mini.light{background:var(--white);color:var(--ink)}.progress{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--lilac);border-radius:16px}.bar{flex:1;height:10px;border-radius:999px;background:var(--white);border:2px solid var(--ink);overflow:hidden}.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--orange),var(--pink),var(--blue));transition:width .4s ease}.progress-text{font-size:13px;font-weight:700;flex-shrink:0}.move-card{background:linear-gradient(135deg,#f5f3ff,#fef3f7);border:3px solid var(--ink);border-radius:18px;padding:18px;text-align:center}.move-badge{display:inline-block;background:var(--ink);color:var(--white);padding:6px 16px;border-radius:10px;font-size:24px;font-weight:700;font-family:JetBrains Mono,Courier New,monospace;letter-spacing:2px;margin-bottom:10px}.move-desc{font-size:17px;font-weight:700;margin-bottom:12px;line-height:1.3}.move-arrow{font-size:48px;line-height:1;color:var(--blue);background:var(--white);border:2px solid var(--ink);border-radius:14px;padding:10px;display:inline-block}.moves-list{list-style:none;padding:0;margin:6px 0 0;max-height:200px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.moves-list li{display:flex;align-items:center;gap:8px;padding:5px 8px;border-radius:8px;font-size:13px;color:var(--ink-soft)}.moves-list li.done{color:var(--green);text-decoration:line-through}.moves-list li.current{background:var(--sun);color:var(--ink);font-weight:700}.move-chip{display:inline-block;min-width:36px;text-align:center;background:var(--lilac);padding:2px 8px;border-radius:6px;font-family:JetBrains Mono,monospace;font-weight:700}details summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--ink-soft);padding:4px 0}details[open] summary{color:var(--ink)}.tip{background:var(--cream);padding:12px 14px;border-radius:14px;border:2px dashed var(--ink);font-size:13px;color:var(--ink-soft);line-height:1.5}.tip b{color:var(--ink)}.error{background:#fee;color:#c0392b;padding:10px 14px;border-radius:10px;font-size:14px;font-weight:600;border:2px solid #f5b0b0}.scan-buttons{display:flex;gap:10px}.scan-buttons .btn{flex:1;min-width:0}.big-status{text-align:center;padding:32px 16px}.spinner{width:48px;height:48px;margin:0 auto 16px;border:5px solid var(--lilac);border-top-color:var(--blue);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.mini-spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;vertical-align:middle;animation:spin .9s linear infinite}.celebrate{text-align:center;padding:8px 0}.celebrate-emoji{font-size:44px;margin-bottom:6px}.celebrate p{font-size:17px;font-weight:700;color:var(--ink);margin:0}@media (max-width: 1080px){.app{grid-template-columns:1fr 380px;padding:24px;gap:20px}.stage{min-height:480px}}@media (max-width: 900px){.app{grid-template-columns:1fr;padding:20px;gap:18px;min-height:auto}.header h1{font-size:26px}.stage{min-height:auto}.cube-play{min-height:420px}.panel{padding:20px}}@media (max-width: 600px){.app{padding:14px 14px 28px;gap:14px}.header{flex-wrap:wrap;gap:12px}h1{font-size:24px}.tagline{font-size:13px}.logo{width:46px;height:46px}.avatar{width:48px;height:48px}h1{font-size:20px}.streak{font-size:13px;padding:6px 12px}.stage{padding:14px;border-radius:22px}.stage-head{padding:2px 2px 10px}.chip{font-size:12px;padding:5px 12px}.cube-play{min-height:340px;border-radius:16px}.cube-slot{top:4%;right:4%;bottom:22%;left:4%}.stripes{height:58px}.puddle{bottom:38px;width:200px;height:22px}.drag-hint{font-size:11px;padding:6px 12px;white-space:normal;text-align:center;max-width:88%}.panel{padding:18px;border-radius:22px;gap:14px}.panel h2{font-size:19px}.btn{padding:12px 14px;font-size:15px}.btn-big{padding:16px 18px;font-size:17px}.btn-primary{font-size:16px}.preview-grid{width:64px;height:64px}.move-card{padding:14px}.move-badge{font-size:20px;padding:5px 12px}.move-desc{font-size:15px}.move-arrow{font-size:40px;padding:8px}.popup-sw{width:44px;height:44px}}@media (max-width: 380px){.streak{display:none}h1{font-size:22px}}@supports (padding: max(0px)){.app{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right));padding-bottom:max(28px,env(safe-area-inset-bottom))}}@media (prefers-reduced-motion: reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}}.step-nav{display:flex;gap:10px;align-items:stretch}.step-nav .btn-ghost{flex:0 0 auto;padding:14px 16px}.step-nav .btn-big{flex:1}