:root{
  --bg:#f6f0ff;
  --panel:#fffdf8;
  --ink:#211a2f;
  --muted:#6e657a;
  --line:#d8cee7;
  --accent:#5a42b5;
  --accent-2:#f1cd55;
  --accent-soft:#ece5ff;
  --success:#2e7d5b;
  --danger:#a33d55;
  --shadow:0 14px 34px rgba(45,36,84,.12);
  --radius:18px;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.55}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
img{max-width:100%}
.wb-network-bar{background:#17131f;color:#fff;font-size:.78rem;letter-spacing:.04em}
.wb-network-inner{max-width:1240px;margin:auto;display:flex;align-items:center;gap:1rem;padding:.55rem 1rem}
.wb-network-brand{font-weight:850;text-decoration:none}
.wb-network-id{opacity:.65}
.wb-network-spacer{flex:1}
.wb-network-link{opacity:.88;text-decoration:none}
.site-header{max-width:1240px;margin:auto;padding:1rem;display:flex;align-items:center;gap:1rem}
.site-brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;font-weight:900;font-size:1.05rem}
.site-brand img{width:34px;height:34px}
.site-nav{margin-left:auto;display:flex;gap:.45rem;align-items:center}
.site-nav a{padding:.55rem .75rem;border-radius:999px;text-decoration:none;font-size:.92rem}
.site-nav a:hover,.site-nav a:focus-visible{background:var(--accent-soft)}
.menu-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:.55rem .75rem}
.shell{max-width:1240px;margin:auto;padding:0 1rem}
.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(260px,.7fr);gap:2rem;align-items:center;padding:3.4rem 0 2.2rem}
.kicker{text-transform:uppercase;letter-spacing:.12em;font-weight:800;font-size:.76rem;color:var(--accent);margin:0 0 .65rem}
h1,h2,h3{line-height:1.1;margin-top:0}
h1{font-size:clamp(2.5rem,6vw,5.4rem);letter-spacing:-.055em;margin-bottom:1rem}
h2{font-size:clamp(1.7rem,3vw,2.65rem);letter-spacing:-.035em}
h3{font-size:1.08rem}
.lede{font-size:1.15rem;max-width:760px;color:#4d435b}
.hero-card{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:1.25rem;box-shadow:var(--shadow)}
.hero-card strong{display:block;font-size:3rem;line-height:1;color:var(--accent)}
.pill{display:inline-flex;align-items:center;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-weight:800;font-size:.78rem;padding:.35rem .65rem}
.app-shell{background:rgba(255,255,255,.58);border:1px solid var(--line);border-radius:28px;padding:1rem;margin:1rem 0 2.5rem;box-shadow:var(--shadow)}
.mode-tabs{display:flex;gap:.45rem;flex-wrap:wrap;margin-bottom:1rem}
.mode-tab{border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:.68rem .95rem;font-weight:800}
.mode-tab[aria-selected="true"]{background:var(--accent);color:white;border-color:var(--accent)}
.app-grid{display:grid;grid-template-columns:310px minmax(0,1fr);gap:1rem;align-items:start}
.mobile-setup-toggle{display:none;width:100%;border:1px solid var(--line);background:var(--accent-soft);color:var(--accent);border-radius:12px;padding:.65rem;font-weight:850;margin-bottom:.75rem}
.control-panel{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:1rem;position:sticky;top:1rem;max-height:calc(100vh - 2rem);overflow:auto}
.control-section{padding:0 0 1rem;margin:0 0 1rem;border-bottom:1px solid var(--line)}
.control-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.control-section h3{margin-bottom:.7rem}
.field{display:block;margin:.75rem 0}
.field span{display:block;font-size:.78rem;font-weight:800;margin-bottom:.35rem;color:#4f4658}
.field input[type="text"],.field input[type="number"],.field textarea,.field select,.file-label{width:100%;border:1px solid var(--line);background:white;border-radius:12px;padding:.7rem .78rem}
.field textarea{min-height:76px;resize:vertical}
.file-label{display:flex;align-items:center;justify-content:center;font-weight:850;cursor:pointer}
.file-label input{position:absolute;opacity:0;pointer-events:none}
.preset-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.4rem}
.preset{border:1px solid var(--line);background:white;border-radius:10px;padding:.55rem .35rem;font-size:.78rem;font-weight:800}
.preset.is-active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.inline-fields{display:grid;grid-template-columns:1fr auto 1fr;gap:.45rem;align-items:end}
.inline-fields .times{padding-bottom:.7rem;color:var(--muted)}
.count-line{display:flex;justify-content:space-between;gap:.75rem;font-size:.84rem;margin-top:.45rem}
.count-line strong{color:var(--accent)}
.primary-btn,.secondary-btn,.ghost-btn{border-radius:12px;padding:.72rem .9rem;font-weight:850;border:1px solid var(--line)}
.primary-btn{background:var(--accent);color:#fff;border-color:var(--accent)}
.secondary-btn{background:var(--accent-2);color:#2b2410;border-color:#d4b744}
.ghost-btn{background:white}
.button-stack{display:grid;gap:.5rem}
.workspace-panel{min-width:0}
.workspace-toolbar{display:flex;align-items:center;gap:.4rem;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:.55rem;margin-bottom:.65rem}
.workspace-toolbar button{border:1px solid var(--line);background:white;border-radius:10px;padding:.52rem .66rem;font-weight:800;font-size:.82rem}
.workspace-toolbar button.is-on{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}
.toolbar-spacer{flex:1}
.stats{display:flex;gap:.65rem;align-items:center;font-size:.78rem;color:var(--muted)}
.stats strong{color:var(--ink)}
.stage-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:.65rem;min-height:620px}
.canvas-card{position:relative;background:#2c2635;border:1px solid #1c1822;border-radius:18px;overflow:hidden;min-height:620px;touch-action:none}
#puzzleCanvas,#miniCanvas{display:block;width:100%;height:100%;min-height:620px;touch-action:none}
.canvas-hint{position:absolute;left:.75rem;bottom:.75rem;background:rgba(20,16,27,.82);color:white;border-radius:999px;padding:.42rem .65rem;font-size:.72rem;pointer-events:none}
.tray{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:.75rem;display:flex;flex-direction:column;min-height:620px}
.tray-head{display:flex;align-items:center;gap:.4rem;margin-bottom:.55rem}
.tray-head h3{margin:0;font-size:.98rem}
.tray-count{margin-left:auto;color:var(--muted);font-size:.76rem}
.tray-filters{display:flex;gap:.35rem;flex-wrap:wrap;margin-bottom:.55rem}
.tray-filter{border:1px solid var(--line);background:white;border-radius:999px;padding:.35rem .55rem;font-size:.72rem;font-weight:800}
.tray-filter.is-on{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}
.tray-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.45rem;align-content:start;flex:1}
.tray-piece{position:relative;display:grid;place-items:center;aspect-ratio:1;border:1px solid var(--line);border-radius:12px;background:#f2edf7;overflow:hidden;touch-action:none}
.tray-piece canvas{width:92%;height:92%;pointer-events:none}
.tray-piece span{position:absolute;right:.2rem;bottom:.15rem;background:rgba(255,255,255,.82);border-radius:6px;padding:0 .22rem;font-size:.58rem;font-weight:800}
.tray-empty{grid-column:1/-1;color:var(--muted);font-size:.86rem;padding:2rem .3rem;text-align:center}
.tray-pages{display:flex;align-items:center;justify-content:space-between;gap:.35rem;margin-top:.55rem}
.tray-pages button{border:1px solid var(--line);background:white;border-radius:10px;padding:.45rem .6rem;font-weight:800}
.tray-pages span{font-size:.76rem;color:var(--muted)}
.drag-ghost{position:fixed;z-index:9999;pointer-events:none;width:84px;height:84px;filter:drop-shadow(0 8px 10px rgba(0,0,0,.3));transform:translate(-50%,-50%)}
.progress-bar{height:8px;border-radius:999px;background:#e4dced;overflow:hidden;margin-top:.55rem}
.progress-bar span{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
.status-line{min-height:1.4rem;font-size:.8rem;color:var(--muted);margin-top:.45rem}
.status-line.is-error{color:var(--danger)}
.status-line.is-success{color:var(--success)}
.mini-panel{display:none;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:1rem}
.mini-panel.is-visible{display:block}
.mini-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:1rem}
.mini-controls{display:grid;align-content:start;gap:.65rem}
.mini-canvas-wrap{min-height:620px;background:#282231;border-radius:18px;overflow:hidden;touch-action:none}
.completion{position:fixed;inset:0;background:rgba(24,18,33,.72);display:none;place-items:center;padding:1rem;z-index:10000}
.completion.is-open{display:grid}
.completion-card{max-width:500px;width:100%;background:var(--panel);border-radius:24px;padding:1.4rem;text-align:center;box-shadow:0 24px 70px rgba(0,0,0,.35)}
.completion-card h2{margin-bottom:.5rem}
.completion-actions{display:flex;justify-content:center;gap:.5rem;flex-wrap:wrap;margin-top:1rem}
.section{padding:3.2rem 0;border-top:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-bottom:1.35rem}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:1rem}
.card p:last-child{margin-bottom:0}
.note{border-left:4px solid var(--accent);background:var(--accent-soft);padding:.85rem 1rem;border-radius:0 12px 12px 0}
.content-page{max-width:900px;margin:auto;padding:3rem 1rem 5rem}
.content-page h1{font-size:clamp(2.4rem,6vw,4.5rem)}
.content-page h2{margin-top:2.5rem}
.content-page li{margin:.45rem 0}
.footer{border-top:1px solid var(--line);margin-top:3rem}
.footer-inner{max-width:1240px;margin:auto;padding:2rem 1rem;display:grid;grid-template-columns:1fr auto;gap:2rem}
.footer-links{display:grid;grid-template-columns:repeat(2,minmax(100px,1fr));gap:.45rem 1rem}
.footer-links a{text-decoration:none;font-size:.9rem}
.skip{position:absolute;left:-9999px}.skip:focus{left:1rem;top:1rem;background:white;padding:.7rem;z-index:10001}
@media(max-width:980px){
  .app-grid{grid-template-columns:1fr}
  .control-panel{position:static;max-height:none}
  .stage-layout{grid-template-columns:minmax(0,1fr) 220px}
  .hero{grid-template-columns:1fr}
}
@media(max-width:760px){
  .site-header{flex-wrap:wrap}
  .menu-toggle{display:block}
  .site-nav{display:none;width:100%;margin-left:0;flex-direction:column;align-items:stretch;padding:.5rem 0}
  .site-nav.is-open{display:flex}
  .site-nav a{border:1px solid var(--line);background:var(--panel)}
  .wb-network-id{display:none}
  .hero{padding:2.1rem 0 1.2rem;gap:1rem}
  h1{font-size:clamp(2.5rem,15vw,4.3rem)}
  .app-shell{border-radius:20px;padding:.65rem;margin-left:-.35rem;margin-right:-.35rem}
  .control-panel{padding:.85rem}
  .mobile-setup-toggle{display:block}
  .control-panel.is-collapsed .control-section{display:none}
  .control-panel.is-collapsed{padding:.65rem}
  .stage-layout{display:flex;flex-direction:column;min-height:0}
  .canvas-card,#puzzleCanvas{min-height:58vh;height:58vh}
  .tray{min-height:0;max-height:none}
  .tray-grid{grid-template-columns:repeat(4,1fr)}
  .tray-piece:nth-child(n+17){display:none}
  .workspace-toolbar{position:sticky;top:0;z-index:20}
  .workspace-toolbar button{padding:.55rem .62rem}
  .stats{width:100%;justify-content:space-between;border-top:1px solid var(--line);padding-top:.45rem}
  .mini-layout{grid-template-columns:1fr}
  .mini-canvas-wrap,#miniCanvas{min-height:58vh;height:58vh}
  .section-head{grid-template-columns:1fr;gap:.5rem}
  .card-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .preset-grid{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:420px){
  .tray-grid{grid-template-columns:repeat(3,1fr)}
  .mode-tab{flex:1 1 40%;text-align:center}
  .inline-fields{grid-template-columns:1fr auto 1fr}
}