:root{--bg:#f6f4ef;--surface:#fff;--surface-2:#efece5;--text:#1d1c1a;--text-2:#6b6760;--line:#e2ded5;--accent:#2f5d50;--accent-text:#fff;--fail:#c8473d;--fail-bg:#fbe9e7;--mid:#c08a1e;--mid-bg:#fbf2dc;--perfect:#2f7d5b;--perfect-bg:#e3f3ea;--review:#c8473d;--new:#2f6fb0;--shadow:0 1px 2px #0000000a, 0 8px 24px #0000000f;--radius:20px;--font:"Noto Sans JP", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;--font-jp:"Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#16171a;--surface:#212226;--surface-2:#2a2b30;--text:#ecebe8;--text-2:#9b9993;--line:#34353a;--accent:#7cc4a8;--accent-text:#0f1a16;--fail:#f0857b;--fail-bg:#3a2422;--mid:#e8b85a;--mid-bg:#3a3020;--perfect:#6fd0a0;--perfect-bg:#1f3529;--review:#f0857b;--new:#7fb3ea;--shadow:0 1px 2px #0000004d, 0 8px 24px #0000004d}}:root{--grid:color-mix(in srgb, var(--accent) 22%, transparent);--s:#8a5cc8;--a:var(--perfect);--b:var(--new);--c:var(--mid);--d:var(--fail)}@media (prefers-color-scheme:dark){:root{--s:#c7a2f2}}*{box-sizing:border-box}[hidden]{display:none!important}html,body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;margin:0}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}.jp{font-family:var(--font-jp)}.page{max-width:560px;padding:calc(4px + env(safe-area-inset-top)) 16px calc(32px + env(safe-area-inset-bottom));min-height:100dvh;margin:0 auto}.topbar{align-items:center;gap:4px;min-height:52px;margin:0 -8px 4px;display:flex}.topbar h1{text-overflow:ellipsis;white-space:nowrap;flex:1;margin:0;font-size:20px;font-weight:700;overflow:hidden}.top-actions{align-items:center;display:flex}.icon-btn,.icon-btn-space{cursor:pointer;touch-action:manipulation;background:0 0;border:0;border-radius:12px;flex:none;place-items:center;width:44px;height:44px;font-size:26px;line-height:1;display:inline-grid}.icon-btn-space{width:8px}.icon-btn:active{background:var(--surface-2)}.icon-btn.small,.icon-btn.gear{font-size:20px}.sync-dot{place-items:center;width:32px;height:44px;display:inline-grid}.sync-dot:after{content:"";background:var(--line);border-radius:50%;width:8px;height:8px}.sync-dot[data-state=ok]:after{background:var(--perfect)}.sync-dot[data-state=error]:after{background:var(--fail)}.stack{gap:12px;display:grid}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;display:block}.card.pad{gap:10px;display:grid}.card-kicker{color:var(--accent);font-size:13px;font-weight:700}.card-title{margin-top:2px;font-size:18px;display:block}.card-meta,.meta{color:var(--text-2);margin-top:4px;font-size:13px;display:block}.hint{color:var(--text-2);margin:0;font-size:13px;line-height:1.5}.notice{background:var(--surface-2);border-radius:14px;margin:0;padding:12px 14px;font-size:14px;line-height:1.55}.notice.error{background:var(--fail-bg);color:var(--fail)}.notice.ok{background:var(--perfect-bg);color:var(--perfect)}.notice.muted{color:var(--text-2);text-align:center;background:0 0;font-size:12px}.block{gap:8px;margin-top:12px;display:grid}.block-title{color:var(--text-2);margin:8px 4px 0;font-size:15px;font-weight:500}.tag{background:var(--surface-2);color:var(--text-2);vertical-align:1px;border-radius:99px;margin-right:6px;padding:2px 8px;font-size:12px;display:inline-block}.btn-primary,.btn-ghost,.btn-outline{cursor:pointer;text-align:center;touch-action:manipulation;border:0;border-radius:16px;place-items:center;min-height:52px;padding:0 20px;font-size:17px;font-weight:700;display:grid}.btn-primary{background:var(--accent);color:var(--accent-text)}.btn-primary:disabled{opacity:.55}.btn-outline{background:var(--surface);border:1px solid var(--line);color:var(--text)}.btn-ghost{color:var(--text-2);background:0 0;font-size:15px;font-weight:500}.btn-ghost.danger{color:var(--fail)}.big{min-height:60px;font-size:18px}.btn-primary:active,.btn-outline:active,.chip:active{transform:scale(.97)}.chip{background:var(--accent);height:36px;color:var(--accent-text);cursor:pointer;border:0;border-radius:99px;padding:0 14px;font-size:14px;font-weight:700}.chip.muted{background:var(--surface-2);color:var(--text-2)}.update-banner{background:var(--accent);width:100%;height:44px;color:var(--accent-text);border:0;border-radius:14px;margin-bottom:8px;font-weight:700}.start-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.stat-card{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.stat-num{font-variant-numeric:tabular-nums;font-size:30px;font-weight:700;line-height:1.1}.stat-label{color:var(--text-2);margin-top:4px;font-size:12px}.list{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.list-row{align-items:center;gap:12px;min-height:64px;padding:10px 16px;display:flex}.list-row+.list-row{border-top:1px solid var(--line)}.list-row:active{background:var(--surface-2)}.list-main{flex:1;gap:2px;min-width:0;display:grid}.list-main strong{text-overflow:ellipsis;white-space:nowrap;font-weight:500;overflow:hidden}.list-main small{color:var(--text-2);font-size:12px}.level{font-variant-numeric:tabular-nums;--lv:var(--text-2);color:var(--lv);background:color-mix(in srgb, var(--lv) 14%, transparent);border-radius:99px;flex:none;padding:4px 10px;font-size:14px;font-weight:700}.lv-S{--lv:var(--s)}.lv-A{--lv:var(--a)}.lv-B{--lv:var(--b)}.lv-C{--lv:var(--c)}.lv-D,.lv-NA{--lv:var(--d)}.level.big{margin-left:auto;padding:4px 16px;font-size:22px}.topic-card{gap:10px;display:grid}.topic-prompt{white-space:pre-wrap;margin:0;font-size:16px;line-height:1.8}.loading{color:var(--text-2);justify-items:center;gap:8px;padding:48px 0;display:grid}.loading.inline{padding:8px 0}.loading p{margin:0;font-size:14px}.spinner{border:3px solid var(--surface-2);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2.4s}}.field{gap:4px;display:grid}.field-label{color:var(--text-2);font-size:13px}.field-input{font:inherit;border:1px solid var(--line);background:var(--bg);min-height:46px;color:var(--text);border-radius:12px;outline:none;width:100%;padding:0 12px;font-size:17px}.field-input.area{resize:vertical;padding:10px 12px;line-height:1.7}.field-input.jp{font-family:var(--font-jp)}.field-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent)}.form-error{color:var(--fail);min-height:1.2em;margin:0;font-size:14px}.prompt-card summary{color:var(--text-2);cursor:pointer;font-size:14px}.prompt-card .topic-prompt{margin-top:8px}.timer-bar{justify-content:space-between;align-items:center;margin:12px 2px 8px;display:flex}.clock{font-variant-numeric:tabular-nums;font-size:24px}.clock[data-state=low]{color:var(--mid)}.clock[data-state=over]{color:var(--fail);font-size:18px}.timer-actions{gap:6px;display:flex}.genko-wrap{--cell:clamp(16px, calc((min(100vw, 560px) - 34px) / 20), 24px);--row:calc(var(--cell) * 1.6);width:calc(var(--cell) * 20 + 2px);max-width:100%;margin:8px auto 0}.genko{box-sizing:content-box;width:calc(var(--cell) * 20);min-height:calc(var(--row) * 12);border:1px solid var(--grid);resize:none;font-size:var(--cell);line-height:var(--row);letter-spacing:0;font-kerning:none;font-feature-settings:normal;line-break:anywhere;word-break:break-all;overflow-wrap:anywhere;white-space:pre-wrap;color:var(--text);background-color:var(--surface);background-image:linear-gradient(to right, var(--grid) 1px, transparent 1px), linear-gradient(to bottom, transparent calc(var(--row) - 1px), var(--grid) calc(var(--row) - 1px));background-size:var(--cell) var(--row), 100% var(--row);caret-color:var(--accent);background-attachment:local;border-radius:4px;outline:none;margin:0;padding:0;display:block;overflow:hidden}.genko:focus{border-color:var(--accent)}.genko::placeholder{color:var(--text-2);opacity:.6}.genko:read-only{opacity:.7}.write-foot{padding:10px 0 calc(8px + env(safe-area-inset-bottom));background:linear-gradient(to bottom, transparent, var(--bg) 14px);gap:8px;margin-top:8px;display:grid;position:sticky;bottom:0}.count-line{align-items:baseline;gap:2px;padding:0 4px;display:flex}.count{font-variant-numeric:tabular-nums;font-size:20px}.count[data-state=short]{color:var(--text-2)}.count[data-state=ok]{color:var(--perfect)}.count[data-state=over]{color:var(--fail)}.lines{color:var(--text-2);font-size:13px}.saved{color:var(--text-2);margin-left:auto;font-size:12px}.score-card{gap:6px;display:grid}.score-row{align-items:baseline;gap:6px;display:flex}.score{font-variant-numeric:tabular-nums;font-size:56px;font-weight:700;line-height:1}.score-max{color:var(--text-2);font-size:18px}.summary{margin:4px 0 0;font-size:16px;line-height:1.6}.axes{grid-template-columns:1fr;gap:8px;display:grid}.axis strong{color:var(--accent);font-size:14px}.axis p{margin:4px 0 0;font-size:15px;line-height:1.6}.corrections,.exprs{gap:8px;margin:0;padding:0;list-style:none;display:grid}.corr p{margin:0;line-height:1.8}.corr-orig{color:var(--text-2);font-size:15px}.corr-orig del{color:var(--fail);background:var(--fail-bg);border-radius:3px;text-decoration-thickness:1px}.corr-rev{font-size:16px;margin-top:4px!important}.corr-rev:before{content:"→ ";color:var(--text-2)}.corr-rev ins{color:var(--perfect);background:var(--perfect-bg);border-radius:3px;font-weight:700;text-decoration:none}.corr-reason{border-top:1px solid var(--line);padding-top:8px;font-size:14px;margin-top:8px!important;line-height:1.65!important}.model-answer{white-space:pre-wrap;margin:0;font-size:16px;line-height:1.9}.checks{gap:10px;margin:0;list-style:none;display:grid}.check{gap:10px;display:flex}.check .mark{border-radius:50%;flex:none;place-items:center;width:24px;height:24px;font-size:14px;font-weight:700;display:grid}.check.ok .mark{color:var(--perfect);background:var(--perfect-bg)}.check.ng .mark{color:var(--fail);background:var(--fail-bg)}.check strong{font-size:15px;font-weight:500}.check p{color:var(--text-2);margin:2px 0 0;font-size:14px;line-height:1.55}.expr{gap:4px;display:grid}.expr p{margin:0;line-height:1.6}.expr-head{cursor:pointer;flex-wrap:wrap;align-items:center;gap:8px;display:flex}.check-input{width:22px;height:22px;accent-color:var(--accent);margin:0}.expr-word{font-size:19px;font-weight:700}.expr-reading{color:var(--text-2);font-size:14px}.tag.sent{background:var(--perfect-bg);color:var(--perfect)}.expr-meaning{font-weight:500}.expr-orig,.expr-why{color:var(--text-2);font-size:14px}.expr-ex{font-size:15px}.send-msg:empty{display:none}.my-essay summary{cursor:pointer;color:var(--text-2);font-size:14px}.essay-text{white-space:pre-wrap;margin:8px 0 0;line-height:1.8}.result-actions{gap:8px;margin-top:16px;display:grid}.chart-card{padding:12px 12px 10px}.chart{touch-action:pan-y;width:100%;height:auto;display:block;overflow:visible}.chart .grid{stroke:var(--line);stroke-width:1px}.chart .axis{stroke:var(--text-2);stroke-width:1px;opacity:.5}.chart .tick{fill:var(--text-2);font-size:11px;font-family:var(--font)}.chart .line{fill:none;stroke:var(--accent);stroke-width:2px;stroke-linejoin:round;stroke-linecap:round}.chart .dot{fill:var(--accent);stroke:var(--surface);stroke-width:2px}.chart .dot.on{r:6}.chart .cross{stroke:var(--text-2);stroke-width:1px;stroke-dasharray:3 3}.chart-tip{min-height:1.4em;color:var(--text-2);text-overflow:ellipsis;white-space:nowrap;margin-top:6px;font-size:13px;overflow:hidden}.chart-tip strong{color:var(--text)}.issues{gap:10px;margin:0;list-style:none;display:grid}.issue{grid-template-columns:8.5em 1fr auto;align-items:center;gap:10px;font-size:14px;display:grid}.issue-bar{background:var(--surface-2);border-radius:99px;height:8px;overflow:hidden}.issue-fill{background:var(--accent);transform-origin:0;height:100%;transform:scaleX(var(--w));border-radius:99px;display:block}.issue-count{color:var(--text-2);font-variant-numeric:tabular-nums}.key-row{align-items:center;gap:8px;display:flex}.key-actions{display:grid}.settings-status{color:var(--text-2);margin:0;font-size:13px}.settings-status.error{color:var(--fail)}.settings-group{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}.setting-row{cursor:pointer;align-items:center;gap:12px;min-height:64px;padding:14px 16px;display:flex}.setting-row+.setting-row{border-top:1px solid var(--line)}.setting-text{flex:1;gap:3px;display:grid}.setting-text strong{font-size:16px;font-weight:500}.setting-text small{color:var(--text-2);font-size:13px;line-height:1.4}.num-input{width:76px;height:42px;font:inherit;text-align:center;border:1px solid var(--line);background:var(--bg);color:var(--text);border-radius:10px;font-size:17px}.switch{appearance:none;background:var(--surface-2);border:1px solid var(--line);cursor:pointer;border-radius:99px;flex:none;width:52px;height:32px;transition:background .15s;position:relative}.switch:after{content:"";background:var(--surface);border-radius:50%;width:24px;height:24px;transition:transform .15s;position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #00000040}.switch:checked{background:var(--accent);border-color:var(--accent)}.switch:checked:after{transform:translate(20px)}.paste-panel{gap:10px;display:grid}.step{grid-template-columns:28px 1fr;align-items:start;gap:12px;display:grid}.step-num{background:var(--accent);width:28px;height:28px;color:var(--accent-text);border-radius:50%;place-items:center;font-size:15px;font-weight:700;display:grid}.step-body{gap:10px;min-width:0;display:grid}.step-title{font-size:16px;line-height:28px}.copy-done{min-height:1.2em;font-size:13px}.copy-done.ok{color:var(--perfect)}.copy-done.error{color:var(--fail)}.copy-done:empty{display:none}.prompt-preview summary{color:var(--text-2);cursor:pointer;font-size:13px}.prompt-text{background:var(--bg);white-space:pre-wrap;word-break:break-all;-webkit-user-select:text;user-select:text;border-radius:10px;max-height:240px;margin:8px 0 0;padding:10px;font-size:12px;line-height:1.5;overflow:auto}.field-input.answer{min-height:140px;font-family:ui-monospace,Menlo,monospace;font-size:16px;line-height:1.45}.parse-errors:empty{display:none}.parse-errors{background:var(--fail-bg);color:var(--fail);border-radius:14px;padding:12px 14px;font-size:14px;line-height:1.55}.parse-errors p{margin:0}.parse-errors ul{word-break:break-all;margin:6px 0;padding-left:18px}.parse-title{font-weight:700}.parse-hint{color:var(--text-2);font-size:13px}.pad-x{padding:0 4px}