:root{--bg:#12151c;--bg2:#1a1f29;--card:#202634;--line:#2e3646;--fg:#eef1f6;--dim:#97a1b3;--accent:#f2b544;--accent2:#4fb0ff;--ok:#4caf50;--bad:#ef5350;--warn:#ffb74d;--safe-b:env(safe-area-inset-bottom,0px);--safe-t:env(safe-area-inset-top,0px);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{background:var(--bg);height:100%;color:var(--fg);margin:0}body{overscroll-behavior:none;-webkit-user-select:none;user-select:none;font:16px/1.4 -apple-system,BlinkMacSystemFont,SF Pro Text,Inter,system-ui,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0}h1,h2,h3,h4{margin:0}p{margin:6px 0}.app{flex-direction:column;min-height:100%;display:flex}main{padding-bottom:calc(64px + var(--safe-b));flex:1}.screen{padding:calc(12px + var(--safe-t)) 16px 24px;max-width:560px;margin:0 auto}.screen:not(.home){padding-bottom:calc(24px + var(--safe-b))}.tabs{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--line);padding-bottom:var(--safe-b);z-index:10;background:#141820eb;display:flex;position:fixed;bottom:0;left:0;right:0}.tabs button{color:var(--dim);flex-direction:column;flex:1;align-items:center;gap:2px;padding:8px 0 6px;font-size:11px;display:flex}.tabs button.on{color:var(--accent)}.tabs .ti{font-size:20px;line-height:1}.hero{justify-content:space-between;align-items:flex-end;margin:8px 0 14px;display:flex}.hero h1{letter-spacing:-.01em;font-size:26px}.streak{background:var(--card);border-radius:12px;padding:6px 12px;font-size:20px;font-weight:700}.dim{color:var(--dim);font-size:14px}.intro{margin-bottom:8px}.section{text-transform:uppercase;letter-spacing:.06em;color:var(--dim);margin:18px 0 8px;font-size:13px}.card{background:var(--card);border-radius:16px;margin-bottom:10px;padding:14px 16px}.ring-card{cursor:pointer;border:1px solid #0000;align-items:center;gap:14px;display:flex}.ring-card:active{border-color:var(--accent)}.ring-card h3{font-size:17px}.ring{flex:none}.link{color:var(--accent);font-size:14px;font-weight:600}.grid2{grid-template-columns:1fr 1fr;gap:10px;display:grid}.card.mini{flex-direction:column;gap:4px;margin:0;display:flex}.card.mini b{font-size:24px}.bar{background:var(--line);border-radius:4px;height:8px;overflow:hidden}.bar i{background:var(--accent);border-radius:4px;height:100%;transition:width .4s;display:block}.bar.thin{width:90px;height:4px;margin-top:4px}.row-item{background:var(--card);cursor:pointer;border-radius:14px;align-items:center;gap:12px;margin-bottom:8px;padding:12px 14px;display:flex}.row-item:active{background:var(--bg2)}.row-item.locked{opacity:.45;cursor:default}.row-item .icon{text-align:center;width:28px;font-size:22px}.row-item .grow{flex-direction:column;flex:1;min-width:0;display:flex}.row-item .grow b{font-size:15px}.row-item .chev{color:var(--dim);font-size:22px}.skill-right{flex-direction:column;align-items:flex-end;gap:2px;font-size:12px;display:flex}.medal{background:var(--line);color:var(--dim);border-radius:999px;padding:2px 8px;font-size:11px;font-weight:700}.medal.m1{color:#f5c58c;background:#6d4c2a}.medal.m2{color:#e6ebf2;background:#4d5561}.medal.m3{color:#ffe08a;background:#7a5b12}.due{color:var(--accent2);font-weight:600}.topbar{justify-content:space-between;align-items:center;min-height:40px;margin-bottom:8px;display:flex}.topbar h2{font-size:17px}.topbar .back{color:var(--accent);padding:0 10px 4px 0;font-size:30px;line-height:1}.pill{background:var(--card);border-radius:999px;padding:4px 10px;font-size:13px;font-weight:600}.goal{color:var(--dim);margin:0 0 8px;font-size:14px}.puzzle-meta{flex-wrap:wrap;gap:6px;min-height:22px;margin-bottom:8px;display:flex}.tag{background:var(--card);color:var(--dim);border-radius:6px;padding:2px 8px;font-size:12px}.tag-new{color:#8fe0a8;background:#1f3b2a}.tag-rev{color:#8fc4ff;background:#1f2e46}.tag-var{color:#d3b8ff;background:#3a2f4f}.tag-dim{opacity:.7}.board-wrap{touch-action:none;width:100%;max-width:min(560px,100dvh - 330px);margin:0 auto;position:relative}.promo{z-index:5;background:#000000b3;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:8px;display:flex;position:absolute;top:0;bottom:0;left:0;right:0}.promo button{background:var(--card);border-radius:10px;min-width:160px;padding:10px 22px;font-size:17px}.panel{background:var(--card);border-radius:16px;margin-top:12px;padding:14px 16px}.turn{align-items:center;gap:8px;margin:0 0 6px;font-weight:600;display:flex}.dot{border:2px solid var(--dim);border-radius:50%;width:14px;height:14px;display:inline-block}.dot.white{background:#fff}.dot.black{background:#111}.warn{color:var(--warn);font-size:14px}.row{gap:8px;margin-top:10px;display:flex}.row>*{flex:1}button.primary{background:var(--accent);color:#1a1a1a;border-radius:12px;padding:12px;font-size:16px;font-weight:700}button.ghost,.btn-like{background:var(--bg2);border:1px solid var(--line);text-align:center;border-radius:12px;padding:11px;font-size:15px}button.ghost:disabled{opacity:.4}button.danger{color:var(--bad)}.chip{background:var(--bg2);border:1px solid var(--line);border-radius:999px;margin-left:6px;padding:4px 12px}.chip.on{border-color:var(--accent);color:var(--accent)}.result h3{margin-bottom:8px;font-size:18px}.result.g0 h3{color:var(--bad)}.result.g1 h3{color:var(--warn)}.result.g2 h3,.result.g3 h3{color:var(--ok)}.stats-row{gap:8px;margin:8px 0;display:flex}.stats-row>div{background:var(--bg2);text-align:center;border-radius:10px;flex-direction:column;flex:1;padding:8px;display:flex}.stats-row b{font-size:20px}.stats-row span{color:var(--dim);font-size:11px}.solution,.moves{word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px}.themes{color:var(--dim);font-size:13px}.chart{align-items:flex-end;gap:4px;height:120px;padding-top:18px;display:flex}.bar-col{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;gap:4px;height:100%;display:flex}.bar-v{background:var(--accent);border-radius:4px 4px 0 0;width:100%;min-height:2px}.bar-col span{color:var(--dim);font-size:9px}.credits{margin-top:20px;font-size:12px}label{align-items:center;gap:8px;display:inline-flex}