:root{--bg:#0f1117;--surface:#1a1d27;--surface2:#232735;--border:#2e3342;--text:#e8eaf0;--text-dim:#9aa0b4;--accent:#7c6cf8;--accent-hover:#9485ff;--green:#34d399;--red:#f87171;--yellow:#fbbf24}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:system-ui,Segoe UI,Roboto,sans-serif}button{color:inherit;cursor:pointer;background:0 0;border:none;font-family:inherit}.app{flex-direction:column;width:560px;max-width:100%;min-height:100svh;margin:0 auto;padding:16px;display:flex}.menu{flex-direction:column;gap:14px;display:flex}.menu-header{text-align:center;margin:24px 0 8px}.menu-title{letter-spacing:-1px;margin:0 0 4px;font-size:40px;font-weight:800}.menu-tagline{color:var(--text-dim);margin:0}.daily-banner{border:1px solid var(--border);background:linear-gradient(135deg, var(--surface2), var(--surface));text-align:left;border-radius:14px;align-items:center;gap:12px;padding:14px 16px;transition:border-color .15s;display:flex}.daily-banner:hover{border-color:var(--accent)}.daily-icon{font-size:24px}.daily-text{color:var(--text-dim);flex-direction:column;flex:1;font-size:14px;display:flex}.daily-text strong{color:var(--text);font-size:16px}.daily-arrow{color:var(--text-dim);font-size:22px}.menu-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.menu-card{border:1px solid var(--border);background:var(--surface);text-align:center;border-radius:14px;flex-direction:column;align-items:center;gap:4px;padding:18px 12px 12px;transition:border-color .15s,transform .1s;display:flex}.menu-card:hover{border-color:var(--accent);transform:translateY(-2px)}.menu-icon{font-size:30px}.menu-name{font-size:15px;font-weight:700}.menu-desc{color:var(--text-dim);min-height:30px;font-size:12px}.menu-best{color:var(--yellow);font-variant-numeric:tabular-nums;font-size:12px}.difficulty-row{justify-content:center;gap:8px;margin-top:4px;display:flex}.diff-pill{border:1px solid var(--border);background:var(--surface);color:var(--text-dim);text-transform:capitalize;border-radius:999px;padding:8px 18px;font-size:14px;font-weight:600}.diff-active{background:var(--accent);border-color:var(--accent);color:#fff}.game{flex-direction:column;flex:1;gap:14px;display:flex}.game-hud{justify-content:space-between;align-items:center;gap:8px;display:flex}.btn-quit{border:1px solid var(--border);background:var(--surface);border-radius:10px;width:40px;height:40px;font-size:16px}.btn-quit:hover{border-color:var(--accent)}.hud-stat{flex-direction:column;align-items:center;display:flex}.hud-label{color:var(--text-dim);text-transform:uppercase;letter-spacing:1px;font-size:12px}.hud-value{font-variant-numeric:tabular-nums;font-size:20px;font-weight:800}.question-area{background:var(--surface);border:1px solid var(--border);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:14px;min-height:220px;padding:20px 16px;display:flex}.question-area.flash-wrong{animation:.35s shake}.question-area.flash-correct{border-color:var(--green);animation:.4s pop}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}@keyframes pop{0%{transform:scale(.97)}50%{transform:scale(1.02)}to{transform:scale(1)}}.make24-hint{color:var(--text-dim);text-align:center;font-size:13px}.game-footer{color:var(--text-dim);justify-content:center;min-height:18px;font-size:13px;display:flex}.pyramid{flex-direction:column;align-items:center;gap:8px;display:flex}.pyramid-row{gap:8px;display:flex}.pyr-cell,.magic-cell{border:1px solid var(--border);font-variant-numeric:tabular-nums;border-radius:10px;justify-content:center;align-items:center;width:64px;height:52px;font-size:19px;font-weight:700;transition:border-color .15s;display:flex}.pyr-given{background:var(--surface2);color:var(--text-dim);cursor:default}.pyr-hidden{background:var(--bg);color:var(--text)}.pyr-hidden:hover{border-color:var(--accent)}.pyr-sel{border-color:var(--accent);box-shadow:0 0 0 2px #7c6cf859}.pyr-wrong{border-color:var(--red);color:var(--red)}.magic-grid{grid-template-columns:repeat(3,64px);gap:8px;display:grid}.magic-cell{width:64px;height:64px;font-size:22px}.opgap-eq{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;display:flex}.opgap-piece{align-items:center;gap:6px;display:flex}.opgap-num{font-variant-numeric:tabular-nums;font-size:28px;font-weight:800}.opgap-eq-sign{color:var(--accent);margin-left:6px;font-size:24px;font-weight:700}.gap-btn{border:1px solid var(--accent);background:#7c6cf826;border-radius:10px;width:44px;height:44px;font-size:22px;font-weight:800}.gap-empty{color:var(--text-dim);border-style:dashed}.gap-btn:hover{background:#7c6cf84d}.opgap-current{color:var(--text-dim);font-size:15px}.opgap-current strong{color:var(--text)}.target-big{color:var(--text-dim);font-size:22px}.target-big strong{color:var(--accent);font-variant-numeric:tabular-nums;font-size:34px}.cards24{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.card24{border:1px solid var(--border);background:var(--surface2);font-variant-numeric:tabular-nums;border-radius:12px;width:68px;height:68px;font-size:24px;font-weight:800;transition:border-color .15s,transform .1s}.card24:hover{border-color:var(--accent)}.card24-sel{border-color:var(--accent);background:#7c6cf833;transform:scale(1.06)}.op-row{justify-content:center;gap:8px;display:flex}.op-btn{border:1px solid var(--border);background:var(--surface);border-radius:12px;width:52px;height:52px;font-size:24px;font-weight:800}.op-btn:hover:not(:disabled){border-color:var(--accent)}.op-btn:disabled{opacity:.4;cursor:default}.op-sel{border-color:var(--accent);background:#7c6cf840}.op-util{font-size:18px}.numpad{grid-template-columns:repeat(3,1fr);gap:8px;margin-top:auto;display:grid}.numpad-key{border:1px solid var(--border);background:var(--surface);border-radius:12px;height:56px;font-size:22px;font-weight:700}.numpad-key:hover{border-color:var(--accent)}.numpad-key:active{background:var(--surface2)}.numpad-enter{background:var(--accent);border-color:var(--accent);color:#fff}.numpad-enter:hover{background:var(--accent-hover)}.btn-start{background:var(--accent);color:#fff;border-radius:12px;padding:14px 32px;font-size:17px;font-weight:700}.btn-start:hover:not(:disabled){background:var(--accent-hover)}.btn-start:disabled{opacity:.4;cursor:default}.btn-secondary{border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:14px 32px;font-size:17px;font-weight:600}.btn-secondary:hover{border-color:var(--accent)}.results{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;display:flex}.results-title{margin:0;font-size:34px;font-weight:800}.results-mode{color:var(--text-dim)}.results-score{color:var(--accent);font-variant-numeric:tabular-nums;font-size:56px;font-weight:800}.results-label{color:var(--text-dim);font-size:15px}.results-actions{gap:10px;margin-top:20px;display:flex}.daily-list{flex-direction:column;gap:6px;width:100%;max-width:320px;margin:16px 0;display:flex}.daily-row{background:var(--surface);border:1px solid var(--border);border-radius:10px;justify-content:space-between;padding:10px 14px;font-size:14px;display:flex}.daily-tomorrow{color:var(--text-dim);margin-top:20px;font-size:13px}.futo-board,.futo-band{flex-direction:column;display:flex}.futo-row,.futo-piece{align-items:center;display:flex}.futo-cell{border:1px solid var(--border);font-variant-numeric:tabular-nums;border-radius:8px;width:56px;height:56px;font-size:22px;font-weight:700}.futo-sign{text-align:center;width:18px;color:var(--yellow);font-size:18px;font-weight:800}.futo-vrow{display:flex}.futo-vsign{text-align:center;width:56px;color:var(--yellow);height:16px;margin-right:18px;font-size:15px;line-height:1}.futo-vsign:last-child{margin-right:0}.balance-eq{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;display:flex}.balance-ch{font-variant-numeric:tabular-nums;font-size:30px;font-weight:800}.balance-eqsign{color:var(--accent);font-size:30px;font-weight:800}.balance-cell{border:1px dashed var(--accent);background:#7c6cf81f;border-radius:8px;width:44px;height:52px;font-size:24px;font-weight:800}.cross-grid{grid-template-columns:repeat(5,52px);grid-auto-rows:40px;place-items:center;gap:4px;display:grid}.cross-cell{border:1px solid var(--border);font-variant-numeric:tabular-nums;border-radius:8px;width:52px;height:52px;font-size:20px;font-weight:700}.cross-op{color:var(--accent);font-size:20px;font-weight:800}.lights-grid{gap:8px;display:grid}.light-cell{border:1px solid var(--border);background:var(--surface2);border-radius:10px;width:56px;height:56px;transition:background .12s,box-shadow .12s}.light-on{background:var(--yellow);box-shadow:0 0 14px #fbbf2473}.kk-grid{gap:0;display:grid}.kk-cell{border:1px solid var(--border);background:var(--surface);font-variant-numeric:tabular-nums;width:64px;height:64px;font-size:22px;font-weight:700;position:relative}.kk-t{border-top:2px solid var(--accent)}.kk-b{border-bottom:2px solid var(--accent)}.kk-l{border-left:2px solid var(--accent)}.kk-r{border-right:2px solid var(--accent)}.kk-label{color:var(--text-dim);font-size:10px;font-weight:700;position:absolute;top:2px;left:4px}.leaderboard{background:var(--surface);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:10px;width:100%;max-width:320px;margin-top:18px;padding:14px;display:flex}.lb-title{text-transform:uppercase;letter-spacing:1px;color:var(--text-dim);font-size:13px;font-weight:700}.lb-submit{gap:8px;display:flex}.lb-name{border:1px solid var(--border);background:var(--bg);min-width:0;color:var(--text);border-radius:10px;flex:1;padding:10px 12px;font-family:inherit;font-size:15px}.lb-name:focus{border-color:var(--accent);outline:none}.lb-btn{white-space:nowrap;padding:10px 16px;font-size:14px}.lb-rank{color:var(--text-dim);font-size:15px}.lb-rank strong{color:var(--yellow)}.lb-list{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.lb-list li{background:var(--bg);border-radius:8px;align-items:center;gap:8px;padding:7px 10px;font-size:14px;display:flex}.lb-pos{color:var(--text-dim);width:20px}.lb-n{text-align:left;text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.lb-list strong{font-variant-numeric:tabular-nums}.lb-me{outline:1px solid var(--accent)}.lb-note{color:var(--text-dim);font-size:13px}.daily-progress{text-align:center;color:var(--text-dim);text-transform:uppercase;letter-spacing:1px;font-size:13px}@media (width<=400px){.pyr-cell,.magic-cell{width:56px;height:48px;font-size:17px}.magic-grid{grid-template-columns:repeat(3,56px)}.card24{width:60px;height:60px;font-size:21px}.menu-title{font-size:32px}.menu-desc{display:none}.futo-cell{width:48px;height:48px;font-size:19px}.futo-vsign{width:48px}.kk-grid{transform:scale(.88)}.cross-grid{grid-template-columns:repeat(5,46px)}.cross-cell{width:46px;height:46px;font-size:17px}.light-cell{width:48px;height:48px}}