:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f5f7;--surface:#fff;--surface-2:#f0f2f5;--border:#e1e4e8;--text:#16181d;--text-2:#4d5360;--muted:#7a808c;--accent:#2a78d6;--accent-strong:#1c5cab;--accent-soft:#e3eefb;--on-accent:#fff;--good:#0ca30c;--good-soft:#e3f5e3;--good-ink:#0a6e0a;--warn:#c98500;--warn-soft:#fdf1d8;--warn-ink:#8a5a00;--bad:#d03b3b;--bad-soft:#fbe6e6;--bad-ink:#a42a2a;--phase-0:#c9ccd2;--phase-1:#86b6ef;--phase-2:#5598e7;--phase-3:#2a78d6;--phase-4:#256abf;--phase-5:#184f95;--phase-6:#0d366b;--shadow:0 1px 2px #1018280f, 0 1px 3px #10182814;--radius:12px;--font:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: 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var(--font);-webkit-font-smoothing:antialiased;margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{margin:0;line-height:1.25}h1{font-size:1.6rem;font-weight:700}h2{font-size:1.15rem;font-weight:650}h3{font-size:1rem;font-weight:600}p{margin:0}.muted{color:var(--muted)}.small{font-size:.85rem}.nowrap{white-space:nowrap}.num{font-variant-numeric:tabular-nums}.topbar{z-index:10;background:color-mix(in srgb, var(--surface) 90%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);position:sticky;top:0}.topbar-inner{align-items:center;gap:24px;max-width:1040px;height:56px;margin:0 auto;padding:0 16px;display:flex}.brand{color:var(--text);align-items:center;gap:8px;font-size:1.1rem;font-weight:750;display:flex}.brand:hover{text-decoration:none}.brand img{width:28px;height:28px}.nav{flex:1;gap:4px;display:flex}.nav a{color:var(--text-2);border-radius:8px;align-items:center;gap:6px;padding:6px 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var(--border);padding:6px 4px calc(6px + env(safe-area-inset-bottom));justify-content:space-around;position:fixed;bottom:0;left:0;right:0}.nav a{flex-direction:column;gap:2px;padding:4px 6px;font-size:.7rem}.page{padding-top:16px}h1{font-size:1.35rem}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.card.link{color:inherit;gap:10px;transition:border-color .15s,transform .15s;display:grid}.card.link:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-1px)}.hero{background:linear-gradient(135deg, var(--accent-soft), var(--surface) 70%);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;padding:24px;display:flex}.hero .big{font-variant-numeric:tabular-nums;font-size:2.6rem;font-weight:750;line-height:1}.tiles{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;display:grid}.tile{gap:2px;display:grid}.tile .value{font-variant-numeric:tabular-nums;font-size:1.6rem;font-weight:700}.tile .label{color:var(--muted);font-size:.85rem}.empty{text-align:center;justify-items:center;gap:12px;padding:40px 16px;display:grid}button,.btn{font:inherit;cursor:pointer;border:1px solid var(--border);background:var(--surface);min-height:38px;color:var(--text);white-space:nowrap;border-radius:9px;justify-content:center;align-items:center;gap:6px;padding:0 14px;font-weight:550;transition:background .15s,border-color .15s;display:inline-flex}button:hover,.btn:hover{background:var(--surface-2);text-decoration:none}button:disabled{opacity:.5;cursor:default}button:focus-visible,.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:2px solid 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.hint{color:var(--muted);font-size:.8rem;font-weight:400}label.check{cursor:pointer;align-items:center;gap:8px;display:flex}.form{gap:14px;display:grid}.form-row{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;display:grid}.error{color:var(--bad-ink);background:var(--bad-soft);border-radius:8px;padding:8px 12px;font-size:.9rem}.badge{background:var(--surface-2);color:var(--text-2);white-space:nowrap;border-radius:99px;align-items:center;gap:4px;padding:1px 8px;font-size:.75rem;font-weight:600;display:inline-flex}.badge.accent{background:var(--accent-soft);color:var(--accent-strong)}.badge.good{background:var(--good-soft);color:var(--good-ink)}.badge.bad{background:var(--bad-soft);color:var(--bad-ink)}.phasebar{background:var(--surface-2);border-radius:5px;gap:2px;height:10px;display:flex;overflow:hidden}.phasebar span{min-width:3px}.phase-dot{border-radius:3px;flex:none;width:10px;height:10px;display:inline-block}.legend{color:var(--text-2);flex-wrap:wrap;gap:6px 14px;font-size:.8rem;display:flex}.legend span{align-items:center;gap:6px;display:inline-flex}.phase-badge{color:var(--text-2);white-space:nowrap;align-items:center;gap:5px;font-size:.75rem;display:inline-flex}.list{display:grid}.list-item{border-top:1px solid var(--border);align-items:center;gap:12px;padding:12px 4px;display:flex}.list-item:first-child{border-top:0}.list-item .grow{flex:1;gap:6px;min-width:0;display:grid}.table-wrap{margin:0 -16px;padding:0 16px;overflow-x:auto}table{border-collapse:collapse;width:100%}th{text-align:left;color:var(--muted);border-bottom:1px solid var(--border);padding:6px 8px;font-size:.8rem;font-weight:600}td{border-bottom:1px solid var(--border);vertical-align:top;padding:8px}tr:last-child td{border-bottom:0}tr.selected td{background:var(--accent-soft)}td.wrap{overflow-wrap:anywhere}.card-table td{vertical-align:middle}.card-table td:first-child,.card-table th:first-child{width:32px}.card-table 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14px;display:grid}.learn-meta{color:var(--muted);justify-content:space-between;align-items:center;gap:12px;min-height:24px;font-size:.8rem;display:flex}.truncate{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.prompt-zone{border-bottom:1px solid var(--border);grid-template-rows:auto 1fr auto;gap:6px;height:10.5rem;padding:12px 0 16px;display:grid}.hint-line{color:var(--text-2);text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:.9rem;font-style:italic;overflow:hidden}.direction{color:var(--muted);font-size:.8rem}.prompt-line{align-items:center;gap:8px;min-height:0;display:flex}.prompt-line 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var(--border);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:4px 0 0;padding-left:10px;font-size:.85rem;display:-webkit-box;overflow:hidden}.flip-placeholder{border:2px dashed var(--border);width:100%;min-height:7rem;color:var(--muted);background:0 0;border-radius:12px;font-weight:500}.flip-placeholder:hover{background:var(--surface-2);border-color:var(--accent)}.expect{color:var(--muted);min-height:1.25em;margin:0 0 -2px;font-size:.8rem}.link-btn{min-height:0;font:inherit;color:var(--accent);text-underline-offset:2px;cursor:pointer;background:0 0;border:0;padding:0;font-weight:500;text-decoration:underline}.link-btn:hover{color:var(--accent-strong);background:0 0}.help ul{gap:6px;margin:0;padding-left:1.2em;display:grid}.help p,.help li{font-size:.92rem}.learn-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.learn-actions>div{display:grid}.learn-actions button{white-space:normal;width:100%;min-height:56px;padding:6px 12px;line-height:1.2}.kbd{color:var(--muted);text-align:center;white-space:nowrap;text-overflow:ellipsis;margin:10px 0 0;font-size:.75rem;overflow:hidden}@media (hover:none){.kbd-keys{display:none}}.learn-done{text-align:center;grid-template-rows:none;justify-items:center;gap:14px;padding:40px 24px;display:grid}@media (width<=560px){.learn-card{padding:16px 16px 12px}.prompt-zone{height:8.5rem}.prompt.size-xl{font-size:1.85rem}.prompt.size-lg{font-size:1.45rem}.prompt.size-md{font-size:1.2rem}.prompt.size-sm{font-size:1rem}.answer-zone{min-height:16rem}.learn-count{display:none}.learn-actions button{font-size:.95rem}.learn-actions button svg{display:none}}.chart{position:relative}.chart svg{width:100%;height:auto;display:block;overflow:visible}.chart .axis{fill:var(--muted);font-size:11px}.chart .grid-line{stroke:var(--border);stroke-width:1px}.chart .hit{fill:#0000;cursor:default}.chart .hit:hover{fill:color-mix(in srgb, var(--text) 5%, transparent)}.tooltip{pointer-events:none;z-index:2;background:var(--text);color:var(--bg);white-space:nowrap;border-radius:8px;padding:6px 10px;font-size:.8rem;position:absolute;transform:translate(-50%,-100%);box-shadow:0 4px 12px #0003}details summary{cursor:pointer;color:var(--text-2);font-size:.85rem}.auth{place-items:center;min-height:100dvh;padding:16px;display:grid}.auth .card{gap:20px;width:min(400px,100%);padding:28px;display:grid}.auth-brand{align-items:center;gap:10px;display:flex}.auth-brand img{width:40px;height:40px}.toasts{z-index:100;gap:8px;width:min(420px,100vw - 32px);display:grid;position:fixed;top:16px;left:50%;transform:translate(-50%)}.toast{background:var(--text);color:var(--bg);border-radius:10px;padding:10px 14px;font-size:.9rem;box-shadow:0 8px 24px #0003}.toast.error{background:var(--bad);color:#fff}@media (width<=380px){.learn-actions button{padding:6px 8px;font-size:.88rem}}