:root,:root[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f1f5f8;--bg-deep:#dce8f1;--ink:#152331;--muted:#637383;--muted-soft:#8796a4;--primary:#245b87;--primary-strong:#174568;--primary-bright:#367aac;--primary-soft:#245b871a;--cyan:#4d8ea8;--line:#224b6b24;--line-strong:#245b8740;--glass:#fafdffb3;--glass-strong:#fcfeffe6;--field:#ffffffb8;--code-bg:#10202e;--code-ink:#eaf4fa;--shadow:0 24px 80px #1947691f, inset 0 1px 0 #ffffffdb;--shadow-soft:0 10px 34px #19476914, inset 0 1px 0 #ffffffbf;--font-display:"Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;--font-ui:"Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;--font-code:"SFMono-Regular", Consolas, monospace;--ease:cubic-bezier(.22, .9, .3, 1);background:var(--bg);color:var(--ink);font-family:var(--font-ui)}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#07121d;--bg-deep:#0b2132;--ink:#eaf3f8;--muted:#9bb0bf;--muted-soft:#708695;--primary:#79afd0;--primary-strong:#4385ae;--primary-bright:#63a6d0;--primary-soft:#4991be29;--cyan:#6eb5c9;--line:#9bcce721;--line-strong:#7ab8da3d;--glass:#0b1e2cad;--glass-strong:#0a1c2ae6;--field:#040e177a;--code-bg:#030b12;--code-ink:#eaf4fa;--shadow:0 24px 90px #0000005c, inset 0 1px 0 #ffffff0f;--shadow-soft:0 12px 40px #0000003d, inset 0 1px 0 #ffffff0a}*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth;scroll-padding-top:104px}body{background:linear-gradient(180deg, color-mix(in srgb, var(--bg), transparent 1%), var(--bg));color:var(--ink);min-width:320px;min-height:100vh;margin:0;overflow-x:clip}body:before{background-image:radial-gradient(circle at center, color-mix(in srgb, var(--ink), transparent 94%) 0 .5px, transparent .7px);content:"";opacity:.18;pointer-events:none;z-index:-1;background-size:5px 5px;position:fixed;inset:0}.ambient-wash{background:radial-gradient(ellipse 62vw 55vh at -6% 4%, color-mix(in srgb, var(--primary) 21%, transparent), transparent 67%), radial-gradient(ellipse 52vw 60vh at 104% 29%, color-mix(in srgb, var(--cyan) 15%, transparent), transparent 70%), radial-gradient(ellipse 44vw 42vh at 55% 106%, color-mix(in srgb, var(--primary-bright) 10%, transparent), transparent 72%);pointer-events:none;z-index:-2;position:fixed;inset:0}button,input,textarea{font:inherit}button{color:inherit;cursor:pointer}button:disabled{cursor:default}a{color:inherit}::selection{background:var(--primary);color:#fff}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}:focus-visible{outline:3px solid color-mix(in srgb, var(--primary) 64%, transparent);outline-offset:3px}.site-shell{max-width:1240px;margin:0 auto;padding:14px 38px 0}.site-header{-webkit-backdrop-filter:blur(22px)saturate(1.18);backdrop-filter:blur(22px)saturate(1.18);background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-soft);z-index:50;border-radius:22px;justify-content:space-between;align-items:center;min-height:66px;padding:8px 10px 8px 13px;display:flex;position:sticky;top:14px}.brand{font-family:var(--font-display);letter-spacing:.01em;align-items:center;gap:10px;font-size:18px;font-weight:600;text-decoration:none;display:inline-flex}.brand-mark{background:var(--primary);box-shadow:0 8px 20px color-mix(in srgb, var(--primary) 28%, transparent);color:#fff;font-family:var(--font-display);border:1px solid #ffffff42;border-radius:14px;justify-content:center;align-items:center;width:40px;height:40px;font-size:27px;font-weight:500;line-height:1;display:inline-flex}.brand-integral{line-height:1;display:block;transform:translateY(-.04em)}.brand-name,.brand-product{line-height:1}.brand-product{color:var(--primary);font-weight:500}.header-actions{align-items:center;gap:14px;display:flex}.header-nav{align-items:center;gap:5px;display:flex}.header-nav a{color:var(--muted);border-radius:10px;padding:9px 11px;font-size:12px;text-decoration:none;transition:background .15s,color .15s}.header-nav a:hover,.header-nav a:focus-visible{background:var(--primary-soft);color:var(--primary)}.theme-toggle{background:var(--glass);border:1px solid var(--line);border-radius:999px;gap:2px;padding:3px;display:flex}.theme-toggle button{color:var(--muted);background:0 0;border:0;border-radius:999px;min-height:30px;padding:0 9px;font-size:10px}.theme-toggle button[aria-pressed=true]{background:var(--glass-strong);box-shadow:var(--shadow-soft);color:var(--primary);font-weight:600}.intro{text-align:center;max-width:920px;margin:clamp(70px,9vw,118px) auto 56px}.eyebrow{color:var(--primary);letter-spacing:.18em;text-transform:uppercase;font-size:11px;font-weight:600}.intro h1{font-family:var(--font-display);letter-spacing:-.04em;margin:20px 0 24px;font-size:clamp(38px,6vw,76px);font-weight:500;line-height:1.18}.intro h1 em{color:var(--primary);font-style:normal}.intro>p:last-child{color:var(--muted);max-width:680px;margin:0 auto;font-size:clamp(15px,1.5vw,18px);line-height:2}.workspace{-webkit-backdrop-filter:blur(24px)saturate(1.18);backdrop-filter:blur(24px)saturate(1.18);background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:30px;max-width:1040px;margin:0 auto;overflow:hidden}.workspace-topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:72px;padding:15px 20px 15px 26px;display:flex}.workspace-topbar>div{align-items:baseline;gap:12px;display:flex}.workspace-kicker{font-size:14px;font-weight:600}.save-state{color:var(--muted-soft);font-size:11px}.primary-actions{align-items:center!important;gap:8px!important;display:flex!important}.new-button{border:1px solid var(--line);color:var(--muted);background:0 0;border-radius:12px;min-height:40px;padding:0 13px;font-size:12px}.new-button:hover{background:var(--primary-soft);border-color:var(--line-strong);color:var(--primary)}.copy-primary{background:var(--primary);color:#fff;min-height:42px;transition:transform .18s var(--ease), background .18s var(--ease);border:0;border-radius:14px;align-items:center;gap:10px;padding:0 16px;font-size:13px;font-weight:600;display:inline-flex}.copy-primary:hover:not(:disabled){background:var(--primary-strong);transform:translateY(-1px)}.copy-primary:disabled{background:color-mix(in srgb, var(--muted) 44%, transparent);color:#ffffffbd}.workspace-notice{background:var(--primary-soft);border-bottom:1px solid var(--line);color:var(--primary);align-items:center;gap:10px;padding:10px 18px 10px 26px;font-size:12px;display:flex}.workspace-notice button{border:1px solid var(--line-strong);color:var(--primary);background:0 0;border-radius:999px;min-height:32px;padding:0 12px;font-size:11px}.workspace-notice button:hover{background:color-mix(in srgb, var(--primary) 12%, transparent)}.workspace-notice-close{min-width:32px;margin-left:auto;border:0!important;padding:0!important}.canvas-wrap{flex-direction:column;justify-content:center;align-items:center;min-height:300px;padding:44px 32px 30px;display:flex;position:relative}.loading-label{color:var(--muted-soft);font-size:12px;position:absolute;top:18px;left:24px}.editor-toolbar{justify-content:space-between;align-items:center;width:calc(100% - 36px);display:flex;position:absolute;top:14px}.tool-group,.mode-switch{align-items:center;gap:4px;display:flex}.editor-toolbar button{color:var(--muted);background:0 0;border:0;border-radius:9px;min-width:32px;min-height:32px;padding:0 9px;font-size:11px}.editor-toolbar button:hover{background:var(--primary-soft);color:var(--primary)}.mode-switch{background:color-mix(in srgb, var(--field) 72%, transparent);border:1px solid var(--line);border-radius:11px;padding:3px}.mode-switch button[aria-pressed=true]{background:var(--glass-strong);box-shadow:var(--shadow-soft);color:var(--primary)}.math-canvas{--caret-color:var(--primary);--contains-highlight-color:var(--ink);--contains-highlight-background-color:color-mix(in srgb, var(--primary) 11%, transparent);--placeholder-color:color-mix(in srgb, var(--ink) 64%, var(--primary));--placeholder-opacity:.68;--selection-color:var(--ink);--selection-background-color:color-mix(in srgb, var(--primary) 18%, transparent);--smart-fence-color:var(--ink);--smart-fence-opacity:.48;color:var(--ink);text-align:center;min-width:min(600px,88%);max-width:100%;transition:filter .18s var(--ease), transform .18s var(--ease);background:0 0;border:0;outline:none;padding:24px;font-size:clamp(34px,6vw,68px)}.math-canvas:focus-within{filter:drop-shadow(0 9px 20px color-mix(in srgb, var(--primary) 9%, transparent))}.math-canvas-hidden,.math-canvas::part(menu-toggle),.math-canvas::part(virtual-keyboard-toggle){display:none}.structure-navigator{animation:structure-navigator-in .18s var(--ease) both;background:color-mix(in srgb, var(--glass-strong) 88%, transparent);border:1px solid var(--line);box-shadow:0 10px 30px color-mix(in srgb, var(--primary) 7%, transparent);border-radius:16px;flex-wrap:wrap;align-items:center;gap:10px;max-width:calc(100% - 24px);margin:1px auto 0;padding:5px 6px 5px 11px;display:flex}.selection-status{color:var(--muted);letter-spacing:.02em;flex:none;align-items:center;gap:6px;font-size:10px;display:inline-flex}.selection-status small{background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:2px 5px;font-size:9px}.selection-status-dot{background:var(--primary);box-shadow:0 0 0 4px color-mix(in srgb, var(--primary) 10%, transparent);height:5px;transition:box-shadow .16s var(--ease), transform .16s var(--ease);border-radius:50%;width:5px}.structure-navigator-element .selection-status-dot,.structure-navigator-structure .selection-status-dot{box-shadow:0 0 0 5px color-mix(in srgb, var(--primary) 14%, transparent), 0 0 18px color-mix(in srgb, var(--primary) 24%, transparent);transform:scale(1.08)}.structure-navigator-actions{scrollbar-width:none;gap:3px;display:flex;overflow-x:auto}.structure-navigator-actions button{color:var(--muted);min-height:32px;transition:background .15s var(--ease), color .15s var(--ease), transform .15s var(--ease);background:0 0;border:0;border-radius:10px;flex:none;padding:0 9px;font-size:10px}.structure-navigator-actions button:hover:not(:disabled),.structure-navigator-actions button:focus-visible{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}.structure-navigator-actions button:disabled{opacity:.34}.semantic-navigator{border-top:1px solid var(--line);flex:1 0 100%;gap:4px;width:100%;padding:6px 1px 1px;display:grid}.semantic-navigator-row{grid-template-columns:48px minmax(0,1fr);align-items:center;gap:8px;display:grid}.semantic-navigator-row>span{color:var(--muted-soft);letter-spacing:.08em;text-transform:uppercase;font-size:9px;font-weight:600}.semantic-navigator-row>div{scrollbar-width:none;gap:3px;display:flex;overflow-x:auto}.semantic-navigator-row button{color:var(--muted);min-height:30px;transition:background .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease), transform .15s var(--ease);background:0 0;border:1px solid #0000;border-radius:9px;flex:none;padding:0 10px;font-size:10px}.semantic-navigator-row button:hover,.semantic-navigator-row button:focus-visible{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}.semantic-navigator-row button[aria-pressed=true]{background:var(--primary-soft);border-color:var(--line-strong);box-shadow:0 0 18px color-mix(in srgb, var(--primary) 10%, transparent);color:var(--primary)}@keyframes structure-navigator-in{0%{filter:blur(3px);opacity:0;transform:translateY(3px)scale(.985)}to{filter:blur();opacity:1;transform:translateY(0)scale(1)}}.latex-source{background:var(--field);border:1px solid var(--line-strong);color:var(--ink);font-family:var(--font-code);resize:vertical;border-radius:15px;outline:none;width:min(760px,94%);min-height:128px;margin:44px 0 0;padding:20px;font-size:14px;line-height:1.65}.latex-source:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.quick-start{text-align:center;width:100%;max-width:720px;margin:2px auto 0}.quick-start>p{color:var(--muted-soft);letter-spacing:.08em;margin:0 0 8px;font-size:10px}.quick-start-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.quick-start-options button{background:color-mix(in srgb, var(--field) 78%, transparent);border:1px solid var(--line);border-radius:13px;min-height:56px;padding:7px 10px;transition:border-color .15s,background .15s,transform .15s}.quick-start-options button:hover{background:var(--primary-soft);border-color:var(--line-strong);transform:translateY(-1px)}.quick-start-options button span{display:block}.quick-start-options button span:first-child{color:var(--primary);margin-bottom:4px;font-size:11px;font-weight:600}.quick-start-options button span:last-child{color:var(--ink);justify-content:center;align-items:center;display:flex}.quick-start-options .structure-glyph{max-width:100%;height:22px}.canvas-hint{color:var(--muted-soft);margin:22px 0 0;font-size:11px}.output-panel{background:color-mix(in srgb, var(--field) 74%, transparent);border-top:1px solid var(--line);padding:14px 18px 18px}.output-tabs,.keyboard-tabs{scrollbar-width:none;gap:4px;display:flex;overflow-x:auto}.output-tabs button,.keyboard-tabs button{color:var(--muted);background:0 0;border:0;border-radius:10px;flex:none;padding:9px 12px;font-size:12px}.output-tabs button[aria-selected=true],.keyboard-tabs button[aria-pressed=true]{background:var(--primary-soft);color:var(--primary);font-weight:600}.ai-actions{flex-wrap:wrap;gap:5px;margin:8px 2px 10px;display:flex}.ai-actions button{border:1px solid var(--line);color:var(--muted);background:0 0;border-radius:999px;padding:6px 10px;font-size:11px}.ai-actions button[aria-pressed=true]{background:var(--primary-soft);border-color:var(--line-strong);color:var(--primary)}.strict-note,.readable-note,.embed-note{color:var(--muted);margin:9px 4px 0;font-size:11px;line-height:1.7}.output-warning{color:var(--primary);margin:10px 4px 0;font-size:11px}.output-empty,.output-pending{background:color-mix(in srgb, var(--field) 62%, transparent);border:1px dashed var(--line-strong);color:var(--muted);text-align:center;border-radius:15px;justify-content:center;align-items:center;min-height:76px;margin:9px 0 0;padding:17px 18px;font-size:12px;display:flex}.output-value{background:var(--code-bg);color:var(--code-ink);font-family:var(--font-code);overflow-wrap:anywhere;white-space:pre-wrap;border-radius:15px;min-height:76px;margin:9px 0 0;padding:17px 18px;font-size:12px;line-height:1.65;overflow:auto}.keyboard{border-top:1px solid var(--line);padding:14px 18px 20px}.structure-bar{border-bottom:1px solid var(--line);grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;margin:-2px 0 12px;padding:0 2px 13px;display:grid}.structure-label{color:var(--muted-soft);letter-spacing:.1em;text-transform:uppercase;font-size:10px;font-weight:600}.structure-keys{grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;display:grid}.structure-keys button{background:color-mix(in srgb, var(--primary-soft) 58%, var(--glass-strong));border:1px solid var(--line);border-radius:12px;justify-content:center;align-items:center;min-height:48px;padding:5px 8px;transition:border-color .15s,transform .15s;display:flex}.structure-keys button:hover{border-color:var(--line-strong);transform:translateY(-1px)}.structure-keys button span:first-child{color:var(--ink);align-items:center;display:flex}.structure-keys .structure-glyph{max-width:100%;height:22px}.structure-glyph{width:auto;display:block}.glyph-slot{fill:color-mix(in srgb, currentColor 12%, transparent);opacity:.72;stroke:currentColor;stroke-width:1.1px}.glyph-label{fill:currentColor;font-family:var(--font-display);stroke:none}.structure-keys button span:last-child{color:var(--muted);margin-left:8px;font-size:10px}.keyboard-tabs{margin-bottom:4px}.keyboard-hint{color:var(--muted-soft);margin:4px 3px 12px;font-size:10px}.variant-tray{background:var(--primary-soft);border:1px solid var(--line-strong);border-radius:13px;align-items:center;gap:6px;min-height:50px;margin:0 0 10px;padding:6px 8px;display:flex;overflow-x:auto}.variant-tray>span{color:var(--primary);font-family:var(--font-display);flex:none;padding:0 5px;font-size:16px}.variant-tray button{background:var(--glass-strong);border:1px solid var(--line);color:var(--ink);font-family:var(--font-display);border-radius:9px;flex:none;min-width:42px;min-height:36px;padding:0 10px;font-size:16px}.variant-tray .variant-close{color:var(--muted);font-family:var(--font-ui);background:0 0;border-color:#0000;min-width:34px;margin-left:auto}.key-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:8px;display:grid}.math-key{min-width:0;position:relative}.math-key-main{-webkit-touch-callout:none;background:var(--glass-strong);border:1px solid var(--line);box-shadow:var(--shadow-soft);font-family:var(--font-display);touch-action:manipulation;-webkit-user-select:none;user-select:none;border-radius:12px;width:100%;min-height:48px;font-size:17px;transition:border .15s,transform .15s}.math-key-main:hover{border-color:var(--line-strong);transform:translateY(-1px)}.math-key-main:active{transform:translateY(1px)}.math-key .variant-disclosure{box-shadow:none;color:var(--muted-soft);font-family:var(--font-ui);background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;width:20px;min-width:0;height:18px;min-height:0;padding:0;font-size:11px;display:flex;position:absolute;top:1px;right:3px}.math-key .variant-disclosure:hover,.math-key .variant-disclosure[aria-expanded=true]{background:var(--primary-soft);color:var(--primary)}.ai-helper{background:color-mix(in srgb, var(--primary-soft) 54%, transparent);border:1px solid var(--line);border-radius:14px;margin:9px 0 0;padding:11px 13px}.ai-helper-heading{justify-content:space-between;align-items:center;gap:18px;display:flex}.ai-helper-heading>div{gap:3px;display:grid}.ai-helper-heading strong{color:var(--ink);font-size:12px}.ai-helper-heading span{color:var(--muted);font-size:10px;line-height:1.5}.ai-helper-heading label{color:var(--primary);cursor:pointer;flex:none;align-items:center;gap:7px;font-size:11px;display:flex}.ai-helper-heading input{accent-color:var(--primary);width:15px;height:15px;margin:0}.product-story{max-width:1040px;margin:clamp(110px,14vw,176px) auto 0}.section-heading{max-width:680px}.section-heading h2,.privacy-copy h2{font-family:var(--font-display);letter-spacing:-.03em;margin:16px 0 20px;font-size:clamp(29px,4vw,48px);font-weight:500;line-height:1.35}.section-title-tail{display:block}.section-heading>p:last-child,.privacy-copy>p:last-child{color:var(--muted);margin:0;font-size:14px;line-height:2}.use-case-grid{grid-template-columns:repeat(3,1fr);gap:1px;margin-top:58px;display:grid}.use-case-grid article{border-left:1px solid var(--line-strong);padding:8px 34px 18px}.use-case-grid article:first-child{border-left:0;padding-left:0}.use-case-number{color:var(--primary);font-family:var(--font-code);font-size:11px}.use-case-grid h3{font-family:var(--font-display);margin:18px 0 14px;font-size:21px;font-weight:500}.use-case-grid p{color:var(--muted);margin:0;font-size:13px;line-height:1.9}.use-case-grid .use-case-detail{border-top:1px solid var(--line);color:var(--muted-soft);margin-top:18px;padding-top:14px;font-size:11px}.privacy-section{background:color-mix(in srgb, var(--glass) 88%, transparent);border:1px solid var(--line);box-shadow:var(--shadow-soft);border-radius:28px;grid-template-columns:minmax(0,.9fr) minmax(360px,1fr);gap:clamp(36px,7vw,90px);max-width:1040px;margin:clamp(86px,12vw,146px) auto 0;padding:clamp(30px,5vw,58px);display:grid}.privacy-copy .eyebrow{margin:0}.privacy-copy h2{font-size:clamp(27px,3.4vw,40px)}.privacy-points{gap:0;margin:0;padding:0;list-style:none;display:grid}.privacy-points li{border-top:1px solid var(--line);gap:5px;padding:16px 0;display:grid}.privacy-points li:first-child{border-top:0;padding-top:2px}.privacy-points strong{color:var(--ink);font-size:13px}.privacy-points span{color:var(--muted);font-size:11px;line-height:1.6}.site-footer{border-top:1px solid var(--line);color:var(--muted);margin-top:clamp(100px,14vw,170px);padding:52px 0 34px}.footer-main{grid-template-columns:minmax(0,1fr) minmax(300px,.8fr);gap:clamp(38px,7vw,96px);display:grid}.footer-brand{justify-items:start;gap:13px;display:grid}.footer-brand .brand{color:var(--ink);font-size:17px}.footer-brand .brand-mark{border-radius:12px;width:34px;height:34px;font-size:22px}.footer-brand p{color:var(--ink);font-family:var(--font-display);letter-spacing:.02em;margin:0;font-size:16px}.footer-note{color:var(--muted-soft);letter-spacing:.09em;font-size:10px}.footer-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;display:grid}.footer-links nav{align-content:start;gap:10px;display:grid}.footer-heading{color:var(--primary);letter-spacing:.14em;text-transform:uppercase;margin:0 0 3px;font-size:10px;font-weight:700}.footer-links a{color:var(--muted);width:fit-content;font-size:12px;text-decoration:none}.footer-links a:hover,.footer-links a:focus-visible{color:var(--primary)}.footer-bottom{border-top:1px solid var(--line);color:var(--muted-soft);letter-spacing:.04em;flex-wrap:wrap;align-items:center;gap:10px;margin-top:42px;padding-top:20px;font-size:10px;display:flex}.footer-dot{opacity:.5;background:currentColor;border-radius:50%;width:3px;height:3px}.footer-credit{margin-left:auto}@media (max-width:800px){.site-shell{padding:10px 20px 0}.site-header{top:10px}.intro{margin-top:64px}.workspace{border-radius:24px}.canvas-wrap{min-height:260px;padding-inline:12px}.math-canvas{min-width:92%;padding-inline:10px}.key-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.use-case-grid{grid-template-columns:1fr}.use-case-grid article,.use-case-grid article:first-child{border-left:0;border-top:1px solid var(--line);padding:24px 0}.privacy-section{grid-template-columns:1fr}}@media (max-width:520px){.site-shell{padding:8px 12px 0}.site-header{border-radius:18px;min-height:58px;padding:7px 8px 7px 10px;top:8px}.brand{gap:7px;font-size:15px}.brand-mark{border-radius:11px;width:34px;height:34px;font-size:22px}.header-nav{display:none}.header-actions{gap:6px}.theme-toggle button{min-height:28px;padding-inline:7px}.intro{margin:22px auto 24px;padding:0 8px}.intro .eyebrow{display:none}.intro h1{letter-spacing:-.06em;margin:0 0 12px;font-size:clamp(29px,9vw,36px)}.intro-action{display:block}.intro>p:last-child{font-size:12px;line-height:1.7}.intro-detail{display:none}.workspace-topbar{min-height:64px;padding:11px 12px 11px 17px}.workspace-topbar>div:first-child{display:none}.primary-actions{flex:1;justify-content:flex-end}.save-state{display:none}.copy-primary{min-height:40px;padding:0 12px;font-size:12px}.workspace-notice{padding:9px 12px 9px 14px}.canvas-wrap{min-height:228px;padding-top:34px;padding-bottom:24px}.editor-toolbar{width:calc(100% - 12px);top:7px}.tool-group,.mode-switch{gap:2px}.editor-toolbar button{min-width:30px;min-height:30px;padding:0 5px;font-size:10px}.math-canvas{min-width:100%;font-size:36px}.structure-navigator{border-radius:14px;flex-direction:column;align-items:stretch;gap:4px;width:100%;max-width:calc(100% - 8px);padding:6px}.selection-status{min-height:22px;padding-inline:6px}.structure-navigator-actions{width:100%}.structure-navigator-actions button{flex:1 0 auto;min-height:38px;padding-inline:8px}.semantic-navigator{padding-inline:5px}.semantic-navigator-row{grid-template-columns:42px minmax(0,1fr)}.semantic-navigator-row button{min-height:38px;padding-inline:11px}.latex-source{width:100%;min-height:150px;margin-top:48px;padding:15px}.quick-start-options{gap:5px}.quick-start-options button{border-radius:11px;min-height:52px;padding:6px 4px}.quick-start-options .structure-glyph{height:20px}.canvas-hint{margin-top:16px;font-size:10px}.output-panel,.keyboard{padding-left:10px;padding-right:10px}.output-tabs button,.keyboard-tabs button{padding-inline:10px}.structure-bar{grid-template-columns:1fr;align-items:start;gap:7px}.structure-keys{gap:5px}.structure-keys button{border-radius:10px;flex-direction:column;min-height:48px;padding:4px 2px}.structure-keys .structure-glyph{height:20px}.structure-keys button span:last-child{margin:2px 0 0;font-size:9px}.ai-helper-heading{flex-direction:column;align-items:flex-start;gap:9px}.key-grid{gap:6px}.math-key-main{border-radius:10px;min-height:44px;font-size:16px}.product-story{margin-top:92px;padding:0 6px}.section-heading>p:last-child,.privacy-copy>p:last-child{font-size:12px}.use-case-grid{margin-top:36px}.privacy-section{border-radius:22px;margin-top:72px;padding:26px 22px}.footer-main{grid-template-columns:1fr}.footer-links{margin-top:8px}.footer-bottom{flex-direction:column;align-items:flex-start}.footer-dot{display:none}.footer-credit{margin-left:0}}@media (max-width:360px){.math-canvas{padding-inline:4px;font-size:30px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}@media (prefers-reduced-transparency:reduce){.workspace{-webkit-backdrop-filter:none;backdrop-filter:none;background:var(--glass-strong)}}
.selection-context{flex:1 0 100%;justify-content:space-between;align-items:center;gap:12px;width:100%;min-width:0;display:flex}.structure-breadcrumb{color:var(--muted-soft);scrollbar-width:none;white-space:nowrap;align-items:center;gap:0;min-width:0;margin:0;padding:0 2px;font-size:10px;list-style:none;display:flex;overflow-x:auto}.structure-breadcrumb li{flex:none;align-items:center;display:inline-flex}.structure-breadcrumb li+li:before{color:color-mix(in srgb, var(--muted-soft) 58%, transparent);content:"›";margin:0 7px}.structure-breadcrumb li[aria-current=location]{color:var(--primary);font-weight:650}.selection-context .selection-status{margin-left:auto}.semantic-navigator-row{grid-template-columns:56px minmax(0,1fr)}.output-format-groups{gap:6px;display:grid}.output-format-group{grid-template-columns:148px minmax(0,1fr);align-items:center;gap:14px;min-width:0;display:grid}.output-format-heading{gap:2px;padding-left:4px;display:grid}.output-format-heading strong{color:var(--ink);font-size:10px;font-weight:650}.output-format-heading span{color:var(--muted-soft);font-size:9px;line-height:1.45}.output-format-group .output-tabs{min-width:0}@media (max-width:720px){.selection-context{flex-direction:column;align-items:stretch;gap:4px;padding:2px 6px 4px}.selection-context .selection-status{margin-left:0}.structure-breadcrumb{width:100%;min-height:22px}.semantic-navigator-row{grid-template-columns:50px minmax(0,1fr)}.output-format-group{grid-template-columns:1fr;align-items:start;gap:3px}.output-format-heading{align-items:baseline;gap:7px;padding:4px 10px 0;display:flex}.output-format-heading span{font-size:8px}}
.primary-actions{flex-wrap:wrap;justify-content:flex-end}.workspace-utility-button{border:1px solid var(--line);color:var(--muted);min-height:40px;transition:background .16s var(--ease), border-color .16s var(--ease), color .16s var(--ease);background:0 0;border-radius:12px;padding:0 12px;font-size:12px}.workspace-utility-button:hover:not(:disabled),.workspace-utility-button[aria-expanded=true]{background:var(--primary-soft);border-color:var(--line-strong);color:var(--primary)}.workspace-utility-button:disabled{opacity:.38}.workspace-drawer{background:color-mix(in srgb, var(--field) 90%, var(--glass-strong));border-bottom:1px solid var(--line);gap:14px;padding:16px 22px 18px 26px;display:grid}.workspace-drawer-heading{justify-content:space-between;align-items:center;gap:18px;display:flex}.workspace-drawer-heading>div{gap:3px;display:grid}.workspace-drawer-heading strong{font-size:13px}.workspace-drawer-heading span,.history-empty{color:var(--muted);font-size:11px;line-height:1.65}.workspace-drawer-close{color:var(--muted);background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;width:34px;height:34px;font-size:18px;display:inline-flex}.workspace-drawer-close:hover{background:var(--primary-soft);color:var(--primary)}.import-source-field{gap:6px;display:grid}.import-source-field>span{color:var(--muted-soft);letter-spacing:.06em;font-size:10px}.import-source-field textarea{background:var(--glass-strong);border:1px solid var(--line);color:var(--ink);resize:vertical;border-radius:13px;outline:none;width:100%;min-height:92px;padding:12px 14px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;line-height:1.6}.import-source-field textarea:focus{border-color:var(--line-strong);box-shadow:0 0 0 3px var(--primary-soft)}.import-panel-actions{justify-content:space-between;align-items:center;gap:12px;display:flex}.import-detection{color:var(--primary);font-size:11px}.import-panel-actions button,.history-clear{background:var(--primary);color:#fff;border:0;border-radius:11px;min-height:36px;padding:0 13px;font-size:11px;font-weight:600}.import-panel-actions button:disabled{opacity:.45}.history-list{gap:6px;max-height:260px;display:grid;overflow-y:auto}.history-entry{background:color-mix(in srgb, var(--glass-strong) 82%, transparent);border:1px solid var(--line);border-radius:12px;grid-template-columns:minmax(0,1fr) 38px;align-items:stretch;display:grid;overflow:hidden}.history-open,.history-remove{background:0 0;border:0}.history-open{text-align:left;min-width:0;padding:10px 12px}.history-open code{color:var(--ink);text-overflow:ellipsis;white-space:nowrap;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:11px;display:block;overflow:hidden}.history-open:hover,.history-remove:hover{background:var(--primary-soft)}.history-remove{border-left:1px solid var(--line);color:var(--muted);font-size:16px}.history-clear{justify-self:start}@media (max-width:720px){.workspace-topbar{align-items:flex-start}.primary-actions{gap:6px;max-width:78%}.workspace-utility-button,.new-button,.copy-primary{min-height:38px}.workspace-drawer{padding:14px 16px 16px}.import-panel-actions{flex-direction:column;align-items:stretch}.import-panel-actions button,.history-clear{width:100%}}
.output-panel{background:color-mix(in srgb, var(--field) 76%, transparent);border-top:1px solid var(--line);padding:24px 26px 26px}.output-heading{justify-content:space-between;align-items:flex-start;gap:28px;display:flex}.output-heading-copy{gap:4px;display:grid}.output-kicker{color:var(--primary);font-family:var(--font-code);letter-spacing:.18em;text-transform:uppercase;margin:0;font-size:9px;font-weight:700}.output-heading h2{font-family:var(--font-display);margin:0;font-size:22px;font-weight:500}.output-heading-description{color:var(--muted);margin:0;font-size:10px;line-height:1.65}.ai-switch{background:color-mix(in srgb, var(--glass-strong) 84%, transparent);border:1px solid var(--line);color:var(--muted);cursor:pointer;border-radius:999px;flex:none;align-items:center;gap:8px;min-height:36px;padding:0 12px;font-size:10px;display:inline-flex}.ai-switch:has(input:checked){background:var(--primary-soft);border-color:var(--line-strong);color:var(--primary)}.ai-switch input{accent-color:var(--primary);margin:0}.output-format-groups{gap:7px;margin-top:20px;display:grid}.output-format-group{grid-template-columns:138px minmax(0,1fr);align-items:center;gap:14px;min-width:0;display:grid}.output-format-heading{gap:2px;padding-left:4px;display:grid}.output-format-heading strong{color:var(--ink);font-size:10px;font-weight:650}.output-format-heading span{color:var(--muted-soft);font-size:9px;line-height:1.45}.output-panel .output-tabs{scrollbar-width:none;border:0;flex-wrap:nowrap;gap:4px;min-width:0;margin:0;padding:0;display:flex;overflow-x:auto}.output-panel .output-tabs button{color:var(--muted);white-space:nowrap;background:0 0;border:0;border-radius:10px;flex:none;min-height:34px;margin:0;padding:0 11px;font-size:11px}.output-panel .output-tabs button[aria-selected=true]{background:var(--primary-soft);color:var(--primary);font-weight:650}.output-ai-panel{background:color-mix(in srgb, var(--glass-strong) 72%, transparent);border:1px solid var(--line);border-radius:15px;gap:10px;margin-top:20px;padding:13px 14px;display:grid}.output-ai-copy{gap:2px;display:grid}.output-ai-copy strong{font-size:11px}.output-ai-copy span{color:var(--muted);font-size:9px;line-height:1.55}.output-panel .ai-actions{flex-wrap:wrap;gap:5px;margin:0;display:flex}.output-panel .ai-actions button{border:1px solid var(--line);color:var(--muted);font-family:var(--font-ui);background:0 0;border-radius:999px;min-height:31px;padding:0 10px;font-size:10px}.output-panel .ai-actions button[aria-pressed=true]{background:var(--primary-soft);border-color:var(--line-strong);color:var(--primary);font-weight:650}.output-preview{margin-top:18px}.output-preview-heading{justify-content:space-between;align-items:baseline;gap:10px;padding:0 4px 7px;display:flex}.output-preview-heading strong{font-size:10px;font-weight:650}.output-preview-heading span{color:var(--muted-soft);font-size:9px}.output-preview-surface{background:var(--code-bg);color:var(--code-ink);overflow-wrap:anywhere;white-space:pre-wrap;border-radius:15px;min-height:96px;padding:18px 20px;line-height:1.7;overflow:auto}.output-preview-surface.is-empty{background:color-mix(in srgb, var(--field) 64%, transparent);border:1px dashed var(--line-strong);color:var(--muted);text-align:center;justify-content:center;align-items:center;display:flex}.output-preview-surface code,.output-preview-surface pre{font-family:var(--font-code);font-size:12px}.output-preview-surface pre{color:inherit;white-space:pre-wrap;background:0 0;min-height:0;margin:0;padding:0;overflow:visible}.output-preview-surface p{margin:0}.output-preview-surface .strict-note,.output-preview-surface .readable-note,.output-preview-surface .embed-note,.output-preview-surface .output-warning{color:color-mix(in srgb, var(--code-ink) 76%, transparent);margin:0 0 10px;font-size:10px;line-height:1.6}.output-preview-surface .output-warning{color:color-mix(in srgb, var(--primary) 72%, var(--code-ink))}.output-actions{justify-content:space-between;align-items:center;gap:12px;margin-top:12px;display:flex}.output-current-format{color:var(--muted);font-size:9px}.output-copy-button{background:var(--primary);color:var(--bg);border:0;border-radius:12px;align-items:center;gap:9px;min-height:40px;padding:0 16px;font-size:11px;font-weight:700;display:inline-flex}.output-copy-button:hover:not(:disabled){background:var(--primary-strong)}.output-copy-button:disabled{opacity:.38}.output-copy-button span[aria-hidden=true]{font-size:13px}.workspace-topbar .copy-primary{display:none}@media (max-width:720px){.output-panel{padding:20px 14px 22px}.output-heading{flex-direction:column;gap:13px}.ai-switch{justify-content:center;align-self:stretch}.output-format-group{grid-template-columns:1fr;align-items:start;gap:4px}.output-format-heading{align-items:baseline;gap:7px;padding:4px 8px 0;display:flex}.output-format-heading span{font-size:8px}.output-panel .output-tabs button{padding-inline:10px}.output-preview-heading{flex-direction:column;align-items:flex-start;gap:2px}.output-preview-surface{min-height:88px;padding:16px}.output-actions{flex-direction:column;align-items:stretch}.output-copy-button{justify-content:center;width:100%}}
