:root{--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px);--bg:#0b1d33;--panel:#0a182ad1;--panel-solid:#102440;--ink:#f2f6fb;--ink-dim:#9fb3c8;--accent:#ffa131;--accent-ink:#241503;--tracer-core:#fff3d6;--good:#46d17e;--bad:#ff6257;--line:#ffffff24;--tap:44px;font-size:16px}*{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}html,body{overscroll-behavior:none;height:100%}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;-webkit-user-select:none;user-select:none;touch-action:manipulation;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}#stage{background:linear-gradient(#0b1d33 0%,#17395f 34%,#7ba0c4 72%,#c3d6e6 100%);position:fixed;inset:0}#stage canvas{touch-action:none;display:block}#app{pointer-events:none;flex-direction:column;display:flex;position:fixed;inset:0}#app>*{pointer-events:auto}button{font:inherit;color:inherit;cursor:pointer;min-height:var(--tap);min-width:var(--tap);touch-action:manipulation;background:0 0;border:none}.screen{flex-direction:column;flex:1;min-height:0;display:flex}.topbar{padding:calc(8px + var(--safe-top)) calc(12px + var(--safe-right)) 8px calc(12px + var(--safe-left));justify-content:space-between;align-items:center;gap:8px;display:flex}.qtop-left{align-items:center;gap:8px;display:flex}.name-pill{background:var(--panel);border:1px solid var(--line);letter-spacing:.02em;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:999px;padding:10px 22px;font-size:18px;font-weight:700}.chip{background:var(--panel);border:1px solid var(--line);color:var(--ink);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:999px;padding:8px 14px;font-size:14px;font-weight:600}.bottom-panel{background:var(--panel);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:10px calc(16px + var(--safe-right)) calc(10px + var(--safe-bottom)) calc(16px + var(--safe-left));flex-direction:column;gap:6px;margin-top:auto;display:flex}.btn-row{gap:10px;display:flex}.btn-primary{background:var(--accent);color:var(--accent-ink);border-radius:14px;flex:1;min-height:52px;font-size:19px;font-weight:800}.btn-primary:disabled{opacity:.4}.btn-secondary{color:var(--ink);background:#1d3f66;border-radius:14px;min-height:52px;padding:0 18px;font-size:16px;font-weight:600}.dial{padding:2px 0}.dial-head{color:var(--ink-dim);justify-content:space-between;align-items:baseline;font-size:13px;display:flex}.dial-label i{border-radius:3px;width:10px;height:10px;margin-right:6px;display:inline-block}.dial-value{color:var(--ink);font-variant-numeric:tabular-nums;font-size:17px;font-weight:700}.dial input[type=range]{appearance:none;touch-action:pan-x;background:0 0;width:100%;height:44px;margin:0}.dial input[type=range]::-webkit-slider-runnable-track{background:linear-gradient(to right, transparent 0, transparent calc(50% - 1px), var(--ink-dim) calc(50% - 1px), var(--ink-dim) calc(50% + 1px), transparent calc(50% + 1px)), #0d2a4a;border-radius:4px;height:8px}.dial input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--ink);border:3px solid #0d2a4a;border-radius:50%;width:30px;height:30px;margin-top:-11px;box-shadow:0 2px 8px #0006}.dial-disabled{opacity:.45}.home-title{letter-spacing:.22em;color:var(--ink);font-size:15px;font-weight:800}.home-body{min-height:0;padding:0 calc(14px + var(--safe-right)) 0 calc(14px + var(--safe-left));flex-direction:column;flex:1;justify-content:safe center;gap:14px;display:flex;overflow-y:auto}.home-status{text-align:center;color:var(--ink-dim);min-height:20px;font-size:14px}.btn-ghost{color:var(--ink-dim);font-size:14px;font-weight:600}.home-credit{text-align:center;color:var(--ink-dim);margin-top:2px;font-size:12px}.home-credit a{color:var(--accent);font-weight:600;text-decoration:none}.mgrid{grid-template-rows:auto auto repeat(3,1fr);grid-template-columns:14px 34px repeat(3,1fr) 54px;align-items:stretch;gap:6px;display:grid}.mgrid-title-path{grid-area:1/3/auto/6;align-self:end;align-items:center;gap:8px;padding-bottom:4px;display:flex}.mgrid-title-path:before,.mgrid-title-path:after{content:"";background:var(--line);flex:1;height:1px}.mgrid-title-face{writing-mode:vertical-rl;white-space:nowrap;grid-area:3/1/6;place-self:stretch center;align-items:center;gap:8px;line-height:1;display:flex;transform:rotate(180deg)}.mgrid-title-face:before,.mgrid-title-face:after{content:"";background:var(--line);flex:1;width:1px}.mgrid-title-path,.mgrid-title-face{letter-spacing:.18em;text-transform:uppercase;color:var(--ink-dim);font-size:9px;font-weight:600}.mgrid-col{color:var(--ink-dim);text-align:center;grid-row:2;align-self:end;padding-bottom:2px;font-size:10.5px}.mgrid-row{color:var(--ink-dim);text-align:right;white-space:nowrap;grid-column:2;align-self:center;padding-right:2px;font-size:10.5px}.mgrid-cell{background:var(--panel-solid);border:1px solid var(--line);border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:7px;min-height:100px;padding:7px 4px;display:flex}@media (hover:hover){.mgrid-cell{transition:transform .12s,box-shadow .12s,border-color .12s}.mgrid-cell:hover{transform:translateY(-2px);box-shadow:0 4px 14px #00000059}.mgrid-cell:hover:not(.mgrid-mastered){border-color:var(--ink-dim)}}.mgrid-thumb{justify-content:center;display:flex}.mgrid-thumb svg{width:auto;height:44px;display:block;overflow:visible}.mgrid-arc-target{stroke:var(--ink-dim);stroke-width:1px;stroke-dasharray:2 3;opacity:.45}.mgrid-arc-glow{fill:none;stroke:var(--accent);stroke-width:5.5px;opacity:.33;stroke-linecap:round;stroke-linejoin:round}.mgrid-arc-core{fill:none;stroke:var(--tracer-core);stroke-width:2.4px;stroke-linecap:round;stroke-linejoin:round}.mgrid-arc-ball{fill:var(--tracer-core)}.mgrid-name{text-align:center;font-size:12.5px;font-weight:700;line-height:1.1}.mgrid-mastered{border-color:var(--good);background:#1f4d33}.mgrid-pips{gap:6px;display:flex}.dot{border:1.5px solid var(--ink-dim);box-sizing:border-box;background:0 0;border-radius:50%;flex:none;width:12px;height:12px}.dot.pip-learning{border-color:var(--accent);background:linear-gradient(to right, var(--accent) 0 50%, transparent 50% 100%)}.dot.pip-mastered{border-color:var(--good);background:var(--good)}.mgrid-legend{color:var(--ink-dim);flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-top:12px;font-size:11px;display:flex}.mgrid-legend span{align-items:center;gap:6px;display:inline-flex}.mgrid-legend .dot{width:11px;height:11px}.settings-sheet{gap:14px}.set-row{justify-content:space-between;align-items:center;gap:12px;font-size:15px;display:flex}.set-col{flex-direction:column;align-items:stretch}.set-note{color:var(--ink-dim);font-size:12px;font-style:normal}.set-about{border-top:1px solid var(--line);color:var(--ink-dim);flex-direction:column;align-items:center;gap:8px;margin-top:2px;padding-top:10px;font-size:13px;display:flex}.about-row{justify-content:space-between;align-items:center;gap:12px;width:100%;font-size:14px;display:flex}.about-row>span{color:var(--ink-dim)}.set-about a{color:var(--accent);font-weight:600;text-decoration:none}.about-links{align-items:center;gap:8px;display:flex}.linklike{min-width:0;min-height:0;color:var(--accent);padding:6px 2px;font-size:13px;font-weight:600;text-decoration:underline}.about-cta{flex:none;justify-content:center;align-self:stretch;align-items:center;margin-top:2px;text-decoration:none;display:flex}.about-copy{color:var(--ink-dim);text-align:center;font-size:12px}.seg{background:#0d2a4a;border-radius:12px;gap:3px;padding:3px;display:flex}.seg button{color:var(--ink-dim);border-radius:9px;padding:8px 18px;font-size:14px;font-weight:600}.seg .seg-on{background:var(--accent);color:var(--accent-ink)}.chip-danger{color:var(--bad);border-color:#ff625766}.chip-armed{background:var(--bad);color:#fff}.exrange{appearance:none;touch-action:pan-x;background:0 0;width:100%;height:44px}.exrange::-webkit-slider-runnable-track{background:#0d2a4a;border-radius:4px;height:8px}.exrange::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);border-radius:50%;width:30px;height:30px;margin-top:-11px}.learn-chips{justify-content:center;gap:8px;display:flex}.learn-lesson{color:var(--ink);flex-direction:column;gap:8px;font-size:14.5px;line-height:1.45;list-style:none;display:flex}.learn-lesson li{padding-left:14px;position:relative}.learn-lesson li:before{content:"·";color:var(--accent);font-weight:900;position:absolute;left:2px}.learn-alt{color:var(--ink-dim);text-align:center;min-height:16px;font-size:12.5px}.qpicker{grid-template-columns:34px repeat(3,1fr);gap:6px;display:grid}.qp-col{color:var(--ink-dim);text-align:center;align-self:end;font-size:10.5px}.qp-row{color:var(--ink-dim);writing-mode:vertical-rl;place-self:center;font-size:10px;transform:rotate(180deg)}.qp-cell{background:var(--panel-solid);border:1px solid var(--line);min-height:54px;color:var(--ink);border-radius:12px;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.qp-names .qp-cell{min-height:58px}.qp-dot{border:2px solid var(--ink-dim);border-radius:50%;width:14px;height:14px}.qp-disabled .qp-cell{opacity:.6}.qp-correct{border-color:var(--good);background:#1f4d33;opacity:1!important}.qp-wrong{border-color:var(--bad);background:#57231f;opacity:1!important}.qfeedback{flex-direction:column;gap:8px;display:flex}.qverdict{text-align:center;font-size:17px;font-weight:800}.q-good{color:var(--good)}.q-bad{color:var(--bad)}.qexplain{text-align:center;color:var(--ink-dim);min-height:18px;font-size:13.5px}.qsetup{min-height:0;padding:6px calc(16px + var(--safe-right)) calc(16px + var(--safe-bottom)) calc(16px + var(--safe-left));flex-direction:column;flex:1;gap:10px;display:flex;overflow-y:auto}.qsetup-hint{text-align:center;color:var(--ink-dim);font-size:14px}.qsetup-order{align-self:center}.qsetup-all{flex:none;margin-top:2px}.qsetup-label{letter-spacing:.14em;text-transform:uppercase;color:var(--ink-dim);margin-top:8px;font-size:11px;font-weight:700}.qsetup-row{gap:8px;display:flex}.qsetup-opt{background:var(--panel-solid);border:1px solid var(--line);color:var(--ink);border-radius:14px;flex:1;min-height:62px;padding:8px;font-size:15px;font-weight:600}@media (hover:hover){.qsetup-opt{transition:transform .12s,border-color .12s}.qsetup-opt:hover{border-color:var(--ink-dim);transform:translateY(-2px)}}.qsetup-upsell{background:var(--panel-solid);border:1px solid var(--line);text-align:center;border-radius:16px;flex-direction:column;gap:12px;margin-top:12px;padding:18px 16px;display:flex}.ups-title{color:var(--ink);font-size:17px;font-weight:800}.ups-body{color:var(--ink-dim);font-size:14px;line-height:1.45}.ups-body em{color:var(--ink);font-style:normal;font-weight:600}.ups-list{color:var(--ink);flex-direction:column;gap:6px;font-size:14px;list-style:none;display:flex}.ups-list li{text-align:left;padding-left:22px;position:relative}.ups-list li:before{content:"✦";color:var(--accent);position:absolute;left:4px}.ups-cta{flex:none;justify-content:center;align-items:center;margin-top:2px;text-decoration:none;display:flex}.ups-by{color:var(--ink-dim);font-size:12px}.ups-by a{color:var(--accent);font-weight:600;text-decoration:none}.legal-body{-webkit-overflow-scrolling:touch;background:var(--panel);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line);min-height:0;padding:18px calc(18px + var(--safe-right)) calc(24px + var(--safe-bottom)) calc(18px + var(--safe-left));color:var(--ink);flex:1;line-height:1.5;overflow-y:auto}.legal-body h1{margin-bottom:4px;font-size:22px;font-weight:800}.legal-body h2{margin:18px 0 6px;font-size:15px;font-weight:700}.legal-meta{color:var(--ink-dim);margin-bottom:14px;font-size:12px}.legal-body p{color:var(--ink-dim);margin-bottom:8px;font-size:14px}.legal-body strong{color:var(--ink)}.legal-body em{color:var(--ink);font-style:normal;font-weight:600}.legal-body ul{color:var(--ink-dim);margin:0 0 10px 18px;font-size:14px}.legal-body li{margin-bottom:4px}.legal-body a{color:var(--accent);font-weight:600;text-decoration:none}.home-body,.qsetup,.bottom-panel{width:100%;max-width:560px;margin-inline:auto}.legal-body{max-width:680px;margin-inline:auto}