:root,:root[data-theme=dark]{--bg:#14161b;--panel:#1c1f26;--panel-2:#242832;--border:#323744;--text:#e6e8ee;--muted:#98a0b2;--accent:#5b94ff;--accent-ink:#0b1220;--run:#26a85f;--run-hover:#2fbf6f;--run-btn:#187a40;--run-btn-hover:#136a37;--danger:#e5484d;--warn:#e0a030;--editor-bg:#1a1d24;--editor-active-line:#ffffff0a;--out-bg:#14161b;--code-bg:#242832;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}:root[data-theme=light]{--bg:#f4f5f8;--panel:#fff;--panel-2:#eef0f4;--border:#d9dde5;--text:#1b1e26;--muted:#5b6273;--accent:#2563eb;--accent-ink:#fff;--run:#1b8f4c;--run-hover:#16793f;--run-btn:#187a40;--run-btn-hover:#136a37;--danger:#cf2a30;--warn:#885200;--editor-bg:#fff;--editor-active-line:#0000000a;--out-bg:#fbfbfd;--code-bg:#eef0f4;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root{--mono:ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;--sans:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--rail-w:64px;--topbar-h:52px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--sans);margin:0;font-size:16px;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{margin:0;line-height:1.25}p{margin:0 0 1em}kbd{font-family:var(--mono);background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:0 5px;font-size:.85em}button{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.container{width:100%;max-width:1040px;margin:0 auto;padding:0 20px}.icon-btn{width:34px;height:34px;color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;display:inline-flex}.icon-btn:hover{background:var(--panel-2);color:var(--text)}.btn{cursor:pointer;border:0;border-radius:8px;align-items:center;gap:6px;height:34px;padding:0 14px;font-size:14px;font-weight:600;display:inline-flex}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-run{background:var(--run-btn);color:#fff}.btn-run:hover:not(:disabled){background:var(--run-btn-hover)}.btn-stop{background:var(--danger);color:#fff}.site-header{border-bottom:1px solid var(--border);background:var(--panel)}.site-header-inner{justify-content:space-between;align-items:center;height:60px;display:flex}.brand{color:var(--text);align-items:center;gap:10px;font-size:18px;font-weight:700;display:inline-flex}.brand:hover{text-decoration:none}.brand-mark,.rail-logo{background:var(--accent);width:34px;height:34px;color:var(--accent-ink);border-radius:9px;justify-content:center;align-items:center;font-size:14px;font-weight:800;display:inline-flex}.site-nav{align-items:center;gap:18px;display:flex}.site-nav a{color:var(--text);font-weight:500}.site-footer{border-top:1px solid var(--border);background:var(--panel);color:var(--muted);margin-top:56px;padding:22px 0;font-size:14px}.site-footer p{margin:0}.site-footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 24px;display:flex}.site-footer nav{flex-wrap:wrap;gap:8px 18px;display:flex}.site-footer a{color:var(--muted)}.hero{text-align:center;padding:64px 0 36px}.hero h1{letter-spacing:-.02em;font-size:clamp(30px,5vw,46px)}.hero p{max-width:640px;color:var(--muted);margin:16px auto 0;font-size:18px}.lang-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px;margin:28px 0 0;padding:0;list-style:none;display:grid}.lang-card{border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:12px;align-items:center;gap:12px;height:100%;padding:14px 16px;display:flex}a.lang-card:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-1px)}.lang-card.is-soon{opacity:.55}.lang-card-text{flex-direction:column;line-height:1.3;display:flex}.lang-card-name{font-weight:600}.lang-card-sub{color:var(--muted);font-size:13px}.section{padding:36px 0 0}.section h2{margin-bottom:14px;font-size:24px}.features{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.feature{border:1px solid var(--border);background:var(--panel);border-radius:12px;padding:18px}.feature h3{margin-bottom:6px;font-size:17px}.feature p{color:var(--muted);margin:0}.prose{max-width:760px;padding-top:40px}.prose h1{margin-bottom:8px;font-size:34px}.prose h2{margin:32px 0 10px;font-size:22px}.prose ul{margin:0 0 1em;padding-left:22px}.prose li{margin-bottom:6px}.prose a,.info p a{text-underline-offset:2px;text-decoration:underline}.prose .meta{color:var(--muted);font-size:14px}.app{border-bottom:1px solid var(--border);height:100dvh;min-height:560px;display:flex}.rail{flex:0 0 var(--rail-w);width:var(--rail-w);background:var(--panel);border-right:1px solid var(--border);scrollbar-width:thin;flex-direction:column;align-items:center;padding:10px 0;display:flex;overflow:hidden auto}.rail-logo:hover{text-decoration:none}.rail-list{flex-direction:column;align-items:center;gap:6px;width:100%;margin:14px 0 0;padding:0;list-style:none;display:flex}.rail-item{width:54px;color:var(--muted);border:1px solid #0000;border-radius:10px;flex-direction:column;align-items:center;gap:2px;padding:6px 0 4px;display:flex}a.rail-item:hover{background:var(--panel-2);color:var(--text);text-decoration:none}.rail-item.is-current{background:var(--panel-2);border-color:var(--border);color:var(--text)}.rail-item.is-soon{opacity:.4;cursor:not-allowed}.rail-logo[data-badge]:before,.rail-badge[data-badge]:before{content:attr(data-badge)}.rail-badge{color:#fff;letter-spacing:-.02em;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:12px;font-weight:800;display:inline-flex}.rail-label{text-overflow:ellipsis;white-space:nowrap;max-width:54px;font-size:10px;line-height:1.1;overflow:hidden}.workspace{flex-direction:column;flex:1;min-width:0;display:flex}.topbar{flex:0 0 var(--topbar-h);background:var(--panel);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:0 16px;display:flex}.topbar-title{white-space:nowrap;text-overflow:ellipsis;font-size:16px;font-weight:700;overflow:hidden}.topbar-nav{align-items:center;gap:16px;font-size:14px;display:flex}.topbar-nav a{color:var(--muted)}.topbar-nav a:hover{color:var(--text)}.ac-toggle{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px;align-items:center;gap:8px;padding:4px 6px;font-size:14px;display:inline-flex}.ac-toggle:hover,.ac-toggle.is-on{color:var(--text)}.ac-track{background:var(--panel-2);border:1px solid var(--border);border-radius:999px;flex:none;width:34px;height:20px;transition:background .15s,border-color .15s;position:relative}.ac-thumb{background:var(--muted);border-radius:50%;width:14px;height:14px;transition:transform .15s,background .15s;position:absolute;top:2px;left:2px}.ac-toggle.is-on .ac-track{background:var(--accent);border-color:var(--accent)}.ac-toggle.is-on .ac-thumb{background:var(--accent-ink);transform:translate(14px)}@media (max-width:600px){.topbar{min-height:var(--topbar-h);flex:none;gap:6px;padding:6px 10px}.topbar-title{white-space:normal;font-size:14px;line-height:1.25}.topbar-nav{gap:4px}.ac-toggle{gap:6px;padding:4px 2px;font-size:13px}}@media (prefers-reduced-motion:reduce){.ac-track,.ac-thumb{transition:none}}.panes{flex:1;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-height:0;display:grid}.pane{background:var(--panel);flex-direction:column;min-width:0;min-height:0;display:flex}.pane-editor{border-right:1px solid var(--border)}.pane-head{background:var(--panel);border-bottom:1px solid var(--border);flex:none;justify-content:space-between;align-items:center;gap:8px;height:46px;padding:0 10px 0 0;display:flex}.tab{height:100%;color:var(--muted);border-bottom:2px solid #0000;align-items:center;padding:0 16px;font-size:14px;font-weight:500;display:inline-flex}.tab.is-active{color:var(--text);border-bottom-color:var(--accent);background:var(--editor-bg)}.pane-actions{align-items:center;gap:4px;display:flex}.editor-body{background:var(--editor-bg);flex:1;min-height:0;position:relative}.cm-host{position:absolute;inset:0}.editor-fallback{height:100%;font-family:var(--mono);color:var(--muted);white-space:pre;margin:0;padding:10px 12px 10px 18px;font-size:14px;line-height:1.6;overflow:auto}.pane-output{background:var(--out-bg)}.pane-output .pane-head{background:var(--panel)}.pane-output .tab.is-active{background:0 0}.pane-output.is-full{z-index:50;position:fixed;inset:0}.out-body{min-height:0;font-family:var(--mono);flex:1;padding:12px 16px;font-size:14px;line-height:1.55;overflow:auto}.out-empty{color:var(--muted);font-family:var(--sans);margin:0;font-size:14px}.out-text{white-space:pre-wrap;word-break:break-word;font:inherit;margin:0}.out-stderr{color:var(--danger)}.out-system{color:var(--muted)}.out-table-wrap{margin:4px 0 14px;overflow-x:auto}.out-table{border-collapse:collapse;min-width:240px;font-size:13px}.out-table th,.out-table td{border:1px solid var(--border);text-align:left;white-space:nowrap;padding:5px 12px}.out-table th{background:var(--panel-2);font-weight:600}.out-table .is-null,.out-table-empty{color:var(--muted);font-style:italic}.out-note{font-family:var(--sans);color:var(--muted);margin:6px 0 0;font-size:13px}.html-preview{background:#fff;border:0;flex:1;width:100%;min-height:0}.input-box{border-top:1px solid var(--border);background:var(--panel);flex:none;padding:8px 12px 10px}.input-label{margin-bottom:6px;font-size:13px;font-weight:600;display:block}.input-hint{color:var(--muted);font-weight:400}.input-box.needs-input{box-shadow:inset 3px 0 0 var(--warn)}.input-box.needs-input .input-hint{color:var(--warn)}.input-area{resize:vertical;width:100%;min-height:56px;max-height:220px;font-family:var(--mono);color:var(--text);background:var(--editor-bg);border:1px solid var(--border);border-radius:8px;padding:8px 10px;font-size:14px;line-height:1.5;display:block}.statusbar{height:32px;color:var(--muted);background:var(--panel);border-top:1px solid var(--border);flex:none;align-items:center;gap:8px;padding:0 14px;font-size:13px;display:flex}.statusbar.is-good{color:var(--run)}.statusbar.is-bad{color:var(--danger)}.statusbar.is-warn{color:var(--warn)}.statusbar.is-busy{color:var(--accent)}.spinner{border:2px solid;border-right-color:#0000;border-radius:50%;width:12px;height:12px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.info{padding-top:44px}.info h2{margin-bottom:14px;font-size:26px}.info h3{margin:22px 0 6px;font-size:18px}.info section+section{margin-top:34px}.info ol,.info ul{margin:0 0 1em;padding-left:22px}.info li{margin-bottom:6px}.info-cols{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px 40px;display:grid}.others{flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none;display:flex}.others a{border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:999px;padding:7px 14px;font-size:14px;display:inline-block}.others a:hover{border-color:var(--accent);text-decoration:none}.cm-editor{height:100%}@media (max-width:860px){.app{flex-direction:column;height:auto;min-height:0}.rail{border-right:0;border-bottom:1px solid var(--border);flex-direction:row;flex:none;align-items:center;gap:10px;width:100%;padding:8px 10px;overflow:auto hidden}.rail-logo{flex:none}.rail-list{flex-direction:row;width:auto;margin:0}.rail-item,.workspace{flex:none}.topbar-nav a{display:none}.panes{flex-direction:column;display:flex}.pane-editor{border-right:0;border-bottom:1px solid var(--border);height:58vh;min-height:340px}.pane-output{min-height:320px}.pane-output.is-full{min-height:0}}@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2s}a.lang-card:hover{transform:none}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}button.tab{cursor:pointer;background:0 0;border-top:0;border-left:0;border-right:0;font-family:inherit}button.tab:hover:not(.is-active){color:var(--text)}.btn-viz{color:var(--text);border:1px solid var(--border);background:0 0}.btn-viz:hover:not(:disabled){background:var(--panel-2)}.viz{flex-direction:column;flex:1;gap:12px;min-height:0;padding:12px 16px 16px;font-size:14px;display:flex;overflow:auto}.viz-empty{color:var(--muted);font-family:var(--sans);flex-direction:row;align-items:flex-start;gap:8px}.viz-empty p{margin:0}.viz-controls{align-items:center;gap:4px;display:flex}.viz-controls .icon-btn{font-size:15px}.viz-controls .icon-btn:disabled{opacity:.4;cursor:default}.viz-slider{min-width:60px;accent-color:var(--accent);flex:1}.viz-count{color:var(--muted);margin-top:-6px;font-size:13px}.viz-note{color:var(--text)}.viz-note.is-bad,.viz-error{color:var(--danger)}.viz-warn{color:var(--warn)}.viz-error,.viz-warn{margin:0;font-weight:500}.viz-code{background:var(--editor-bg);border:1px solid var(--border);max-height:260px;font-family:var(--mono);border-radius:8px;flex:none;margin:0;padding:4px 0;font-size:13.5px;line-height:1.55;list-style:none;position:relative;overflow:auto}.viz-line{align-items:baseline;width:100%;min-width:max-content;display:flex}.viz-line.is-current{background:color-mix(in srgb, var(--accent) 22%, transparent)}.viz-line.is-prev{background:color-mix(in srgb, var(--muted) 14%, transparent)}.viz-line.is-current .viz-num,.viz-line.is-prev .viz-num{color:var(--text)}.viz-gutter{text-align:center;color:var(--accent);flex:0 0 18px;font-size:11px}.viz-num{text-align:right;color:var(--muted);-webkit-user-select:none;user-select:none;flex:0 0 30px;padding-right:10px}.viz-text{white-space:pre;font:inherit;padding-right:12px}.viz-frames{flex-direction:column;gap:8px;display:flex}.viz-frame{border:1px solid var(--border);background:var(--panel);border-radius:8px;padding:8px 10px}.viz-frame.is-top{border-color:var(--accent)}.viz-frame-title{font-size:13px;font-weight:600;font-family:var(--sans);justify-content:space-between;gap:8px;margin:0 0 6px;display:flex}.viz-frame-line{color:var(--muted);font-weight:400}.viz-none{color:var(--muted);font-family:var(--sans);margin:0;font-size:13px}.viz-vars{border-collapse:collapse;width:100%;font-family:var(--mono);font-size:13.5px}.viz-vars th,.viz-vars td{text-align:left;vertical-align:top;padding:3px 8px 3px 0;font-weight:400}.viz-vars th{color:var(--accent);white-space:nowrap;width:1%}.viz-value{word-break:break-word}.viz-type{color:var(--muted);white-space:nowrap;font-size:12px;text-align:right!important}.viz-vars tr.is-changed{background:color-mix(in srgb, var(--warn) 22%, transparent)}.viz-vars tr.is-changed th,.viz-vars tr.is-changed .viz-type{color:var(--text)}.viz-out-title{font-size:13px;font-weight:600;font-family:var(--sans);margin-bottom:4px}.viz-out-text{white-space:pre-wrap;word-break:break-word;background:var(--editor-bg);border:1px solid var(--border);min-height:2.2em;max-height:160px;font-family:var(--mono);border-radius:8px;margin:0;padding:8px 10px;font-size:13.5px;overflow:auto}@media (max-width:480px){.btn-viz .btn-label{display:none}}