:root{--bg:#0a0d12;--bg-2:#0d1219;--surface:#121924;--surface-2:#18212e;--glass:rgba(14,19,27,.72);--ink:#e9eef6;--muted:#97a4b8;--faint:#66738a;--line:hsla(0,0%,100%,.085);--line-strong:hsla(0,0%,100%,.16);--brand:#1273e0;--primary:#3f7cff;--primary-lift:#6188ff;--primary-ink:#a9c4ff;--primary-soft:rgba(63,124,255,.13);--cyan:#00bad2;--safe:#00d294;--safe-ink:#5ee9bd;--safe-soft:rgba(0,210,148,.12);--warn:#f99c00;--warn-ink:#ffc45c;--warn-soft:rgba(249,156,0,.12);--danger:#ff6568;--danger-ink:#ffa3a3;--danger-soft:rgba(255,101,104,.12);--cobalt:var(--primary);--cobalt-soft:var(--primary-soft);--verified:var(--safe-ink);--verified-soft:var(--safe-soft);--amber:var(--warn-ink);--amber-soft:var(--warn-soft);--oxide:var(--danger-ink);--oxide-soft:var(--danger-soft);--sunk:var(--bg-2);--grid:hsla(0,0%,100%,.034);--glow-a:rgba(63,124,255,.2);--glow-b:rgba(0,186,210,.13);--sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--mono:"Geist Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;--cond:var(--sans);--r-sm:6px;--r:10px;--r-lg:14px;--r-xl:20px;--gutter:clamp(16px,3.4vw,26px);--mast-h:62px;--sh-1:0 1px 2px rgba(0,0,0,.32);--sh-2:0 4px 14px -6px rgba(0,0,0,.5),0 1px 2px rgba(0,0,0,.3);--sh-3:0 18px 44px -22px rgba(0,0,0,.72),0 2px 8px rgba(0,0,0,.34);--ring:0 0 0 1px var(--line-strong)}@media (prefers-color-scheme:light){:root:not([data-theme=dark]){--bg:#f6f8fc;--bg-2:#eef2f8;--surface:#fff;--surface-2:#f7f9fd;--glass:hsla(0,0%,100%,.78);--ink:#0e1622;--muted:#55637a;--faint:#8492a8;--line:rgba(14,22,34,.09);--line-strong:rgba(14,22,34,.17);--primary:#2b62e8;--primary-lift:#3f7cff;--primary-ink:#1d4ed8;--primary-soft:rgba(43,98,232,.09);--safe:#00976a;--safe-ink:#00795a;--safe-soft:rgba(0,151,106,.1);--warn:#c07500;--warn-ink:#9a5d00;--warn-soft:rgba(192,117,0,.11);--danger:#d8453f;--danger-ink:#b3302c;--danger-soft:rgba(216,69,63,.1);--grid:rgba(14,22,34,.045);--glow-a:rgba(63,124,255,.13);--glow-b:rgba(0,186,210,.1);--sh-1:0 1px 2px rgba(14,22,34,.05);--sh-2:0 4px 14px -8px rgba(14,22,34,.16),0 1px 2px rgba(14,22,34,.05);--sh-3:0 18px 44px -24px rgba(14,22,34,.24),0 2px 8px rgba(14,22,34,.06)}}:root[data-theme=light]{--bg:#f6f8fc;--bg-2:#eef2f8;--surface:#fff;--surface-2:#f7f9fd;--glass:hsla(0,0%,100%,.78);--ink:#0e1622;--muted:#55637a;--faint:#8492a8;--line:rgba(14,22,34,.09);--line-strong:rgba(14,22,34,.17);--primary:#2b62e8;--primary-lift:#3f7cff;--primary-ink:#1d4ed8;--primary-soft:rgba(43,98,232,.09);--safe:#00976a;--safe-ink:#00795a;--safe-soft:rgba(0,151,106,.1);--warn:#c07500;--warn-ink:#9a5d00;--warn-soft:rgba(192,117,0,.11);--danger:#d8453f;--danger-ink:#b3302c;--danger-soft:rgba(216,69,63,.1);--grid:rgba(14,22,34,.045);--glow-a:rgba(63,124,255,.13);--glow-b:rgba(0,186,210,.1);--sh-1:0 1px 2px rgba(14,22,34,.05);--sh-2:0 4px 14px -8px rgba(14,22,34,.16),0 1px 2px rgba(14,22,34,.05);--sh-3:0 18px 44px -24px rgba(14,22,34,.24),0 2px 8px rgba(14,22,34,.06)}*{box-sizing:border-box}html{text-size-adjust:100%;overflow-x:clip}body{margin:0;color:var(--ink);font-family:var(--sans);font-size:15.5px;line-height:1.65;letter-spacing:-.005em;-webkit-font-smoothing:antialiased;background:radial-gradient(58rem 34rem at 78% -10%,var(--glow-a),transparent 62%),radial-gradient(46rem 30rem at 8% 8%,var(--glow-b),transparent 60%),linear-gradient(var(--grid) 1px,transparent 1px) 0 0 /48px 48px,linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0 /48px 48px,var(--bg);background-attachment:fixed,fixed,fixed,fixed,fixed;-webkit-tap-highlight-color:transparent}a{color:var(--primary-ink);-webkit-text-decoration-color:color-mix(in srgb,var(--primary-ink) 38%,transparent);text-decoration-color:color-mix(in srgb,var(--primary-ink) 38%,transparent);text-underline-offset:2px}a:hover{-webkit-text-decoration-color:currentColor;text-decoration-color:currentColor}button{font:inherit}:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:var(--r-sm)}::selection{background:var(--primary-soft)}@media (prefers-reduced-motion:reduce){*,:after,:before{transition:none!important;animation:none!important}}.wrap{max-width:1400px;margin:0 auto;padding-left:calc(var(--gutter) + env(safe-area-inset-left));padding-right:calc(var(--gutter) + env(safe-area-inset-right))}.site-footer{display:none;border-top:1px solid var(--line);margin-top:60px}@media (max-width:619px){.site-footer{display:block}}.footer-in{padding-top:22px;padding-bottom:calc(44px + env(safe-area-inset-bottom))}.stack{flex-direction:column}.row,.stack{display:flex}.row{align-items:center}.scroll-x{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}.mast{position:-webkit-sticky;position:sticky;top:0;z-index:40;background:var(--glass);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}.mast-in{min-height:var(--mast-h);gap:clamp(10px,1.6vw,26px)}.mast-bell,.mast-in{display:flex;align-items:center}.mast-bell{order:3}.mast-prefs{order:4;display:flex}.mast-prefs,.prefs-footer{align-items:center;gap:9px}.prefs-footer{display:none;flex-wrap:wrap;max-width:100%}.prefs-footer .ctl{min-width:0;max-width:min(46vw,220px)}.mast-account{order:5;display:flex;align-items:center;gap:9px}.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:18px;letter-spacing:-.025em;text-decoration:none;color:var(--ink)}.brand-mark{flex:none;border-radius:7px;box-shadow:0 4px 12px -5px color-mix(in srgb,var(--brand) 78%,transparent)}.brand-text{letter-spacing:-.03em}.brand-accent{background:linear-gradient(100deg,var(--primary-lift),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}.nav{display:flex;gap:3px;flex:0 0 auto;min-width:0;overflow-x:auto;scrollbar-width:none;overscroll-behavior-x:contain}.nav::-webkit-scrollbar{display:none}.nav a{white-space:nowrap;font-size:13.8px;font-weight:500;padding:7px 13px;border-radius:999px;text-decoration:none;color:var(--muted);border:1px solid transparent;transition:color .14s ease,background .14s ease,border-color .14s ease}.nav a:hover{color:var(--ink);background:var(--surface);border-color:var(--line)}.nav a[data-on="1"]{color:var(--primary-ink);background:var(--primary-soft);border-color:color-mix(in srgb,var(--primary) 34%,transparent);font-weight:600}.ctl{font:inherit;font-size:12.6px;padding:6px 9px;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);transition:border-color .14s ease}.ctl:hover{border-color:var(--primary)}.eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}.h1{font-size:clamp(24px,4.4vw,32px);font-weight:700;line-height:1.12;letter-spacing:-.03em;margin:8px 0 0}.h1,.h2{text-wrap:balance}.h2{font-size:clamp(18px,2.4vw,21px);font-weight:650;line-height:1.25;letter-spacing:-.022em;margin:0 0 11px}.h3{font-size:clamp(15px,1.6vw,16.5px);font-weight:600;letter-spacing:-.015em;margin:0 0 8px}.muted{color:var(--muted)}.faint{color:var(--faint)}.small{font-size:13.2px}.mono{font-family:var(--mono);font-feature-settings:"tnum" 1}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.card[data-hover="1"]:hover,a.card:hover{border-color:color-mix(in srgb,var(--primary) 42%,var(--line-strong));box-shadow:var(--sh-3);transform:translateY(-2px)}.card-glow{position:relative;overflow:hidden;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 9%,transparent),color-mix(in srgb,var(--cyan) 7%,transparent)),var(--surface)}.sep{border:0;border-top:1px solid var(--line);margin:30px 0}.chip{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:10.6px;letter-spacing:.04em;padding:3px 9px;border-radius:999px;white-space:nowrap;border:1px solid var(--line-strong);color:var(--muted);background:var(--surface-2);max-width:100%}.chip[data-tone=cobalt]{color:var(--primary-ink);border-color:color-mix(in srgb,var(--primary) 40%,transparent);background:var(--primary-soft)}.chip[data-tone=amber]{color:var(--warn-ink);border-color:color-mix(in srgb,var(--warn) 40%,transparent);background:var(--warn-soft)}.chip[data-tone=oxide]{color:var(--danger-ink);border-color:color-mix(in srgb,var(--danger) 40%,transparent);background:var(--danger-soft)}.chip[data-tone=verified]{color:var(--safe-ink);border-color:color-mix(in srgb,var(--safe) 40%,transparent);background:var(--safe-soft)}.chips{display:flex;flex-wrap:wrap;gap:6px}.btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer;white-space:nowrap;font-size:13.8px;font-weight:550;padding:9px 16px;border:1px solid var(--line-strong);border-radius:999px;background:var(--surface);color:var(--ink);text-decoration:none;transition:border-color .14s ease,background .14s ease,transform .12s ease,box-shadow .14s ease}.btn:hover{border-color:var(--primary);transform:translateY(-1px)}.btn:active{transform:none}.btn[data-variant=primary]{background:linear-gradient(140deg,var(--primary-lift),var(--primary));border-color:transparent;color:#fff;box-shadow:0 6px 18px -8px var(--primary),inset 0 1px 0 hsla(0,0%,100%,.22)}.btn[data-variant=primary]:hover{filter:brightness(1.07);box-shadow:0 10px 26px -10px var(--primary),inset 0 1px 0 hsla(0,0%,100%,.28)}.btn[data-size=sm]{padding:6px 12px;font-size:12.4px}.btn:disabled{opacity:.42;cursor:not-allowed;transform:none}.btn[data-variant=primary]:disabled{opacity:1;background:var(--surface-2);border-color:var(--line-strong);color:var(--muted);box-shadow:none}.prose{max-width:none}.prose>*{max-width:var(--measure,72ch)}.read-col{--measure:100%;--read:92ch;--rail:232px;--rail-gap:40px}.read-col>*{max-width:var(--read)}.read-col .prose>*{max-width:100%}.read-col>.doc-grid{max-width:var(--read)}@media (min-width:1120px){.read-col>.doc-grid{max-width:calc(var(--read) + var(--rail) + var(--rail-gap))}}.read-col .diagram{--bleed:min(calc(var(--read) + var(--rail) + var(--rail-gap)),calc(100vw - 2 * var(--gutter)));width:var(--bleed);margin-right:calc(100% - var(--bleed))}.prose p{margin:0 0 15px}.prose ol,.prose ul{margin:0 0 15px;padding-left:22px}.prose li{margin:0 0 6px}.prose code{font-family:var(--mono);font-size:.85em;padding:2px 6px;border-radius:var(--r-sm);background:var(--surface-2);border:1px solid var(--line);color:var(--primary-ink)}.prose strong{font-weight:650}.code{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh-1)}.code-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 14px;border-bottom:1px solid var(--line);background:var(--surface);font-family:var(--mono);font-size:10.6px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}.code-head[data-tone=bad]{color:var(--danger-ink);background:linear-gradient(90deg,var(--danger-soft),transparent 70%),var(--surface)}.code-head[data-tone=good]{color:var(--safe-ink);background:linear-gradient(90deg,var(--safe-soft),transparent 70%),var(--surface)}.code pre{margin:0;padding:14px 0;overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}.code code{display:block;font-family:var(--mono);font-size:12.6px;line-height:1.75;white-space:pre}.ln{display:block;padding:0 16px}.ln[data-hl="1"]{background:var(--danger-soft);box-shadow:inset 3px 0 0 var(--danger)}.ln[data-hl=good]{background:var(--safe-soft);box-shadow:inset 3px 0 0 var(--safe)}.diagram{margin:0 0 18px}.prose>.diagram{max-width:none}.diagram-body{padding:16px 14px}.diagram-body>svg{max-width:none;height:auto;display:block;margin:0 auto}.diagram-body .edgeLabel,.diagram-body .nodeLabel,.diagram-body foreignObject div{font-family:var(--sans)!important;letter-spacing:-.005em}.diagram[data-phase=loading] pre{opacity:.5;transition:opacity .15s}.diagram-toggle{font:inherit;letter-spacing:inherit;text-transform:inherit;color:var(--primary-ink);background:none;border:0;padding:0;cursor:pointer;border-bottom:1px dashed}.diagram-toggle:hover{color:var(--primary-lift)}table{border-collapse:separate;border-spacing:0;font-size:13.4px;width:100%;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}td,th{border-bottom:1px solid var(--line);padding:9px 13px;text-align:left;vertical-align:top}tbody tr:last-child td{border-bottom:0}th{font-weight:600;font-size:12.4px;letter-spacing:-.01em;color:var(--muted)}tbody tr:hover,th{background:var(--surface-2)}.callout{border:1px solid color-mix(in srgb,var(--warn) 34%,transparent);background:var(--warn-soft);padding:13px 16px;border-radius:var(--r);margin:0 0 18px}.callout[data-tone=oxide]{border-color:color-mix(in srgb,var(--danger) 34%,transparent);background:var(--danger-soft)}.callout[data-tone=verified]{border-color:color-mix(in srgb,var(--safe) 34%,transparent);background:var(--safe-soft)}.callout>:last-child{margin-bottom:0}.rail{gap:14px;padding-bottom:12px;overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}.rail,.rail-g{display:flex;align-items:flex-end}.rail-g{gap:4px;position:relative;padding-top:15px}.rail-g:before{content:attr(data-label);position:absolute;top:0;left:0;font-family:var(--mono);font-size:9px;letter-spacing:.13em;color:var(--faint)}.cell{width:17px;height:26px;padding:0;border-radius:4px;cursor:pointer;border:1px solid var(--line-strong);background:var(--surface-2);transition:transform .12s ease,box-shadow .12s ease}.cell:hover{transform:translateY(-2px)}.cell[data-s=done]{background:linear-gradient(160deg,var(--safe),color-mix(in srgb,var(--safe) 62%,#000));border-color:transparent}.cell[data-s=now]{background:linear-gradient(160deg,var(--primary-lift),var(--primary));border-color:transparent;box-shadow:0 0 0 3px var(--primary-soft),0 6px 14px -6px var(--primary)}.cell[data-s=gap]{border-color:var(--warn);box-shadow:inset 0 -3px 0 var(--warn)}.hero{position:relative;padding:64px 0 44px}.hero:before{content:"";position:absolute;inset:-20% -10% auto -10%;height:420px;pointer-events:none;background:radial-gradient(46rem 22rem at 30% 40%,var(--glow-a),transparent 72%);z-index:-1}.hero h1{font-size:clamp(27px,7vw,52px);font-weight:700;line-height:1.06;letter-spacing:-.038em;margin:12px 0 16px;text-wrap:balance}.grad{background:linear-gradient(104deg,var(--primary-lift) 6%,var(--cyan) 92%);-webkit-background-clip:text;background-clip:text;color:transparent}.doc-grid{display:grid;grid-template-columns:minmax(0,1fr);grid-gap:40px;gap:40px;padding-top:26px}@media (min-width:1120px){.doc-grid{grid-template-columns:minmax(0,1fr) 232px}}.onthispage{display:none}@media (min-width:1120px){.onthispage{display:block;position:-webkit-sticky;position:sticky;top:calc(var(--mast-h) + 22px);align-self:start;max-height:calc(100dvh - var(--mast-h) - 58px);overflow-y:auto}}.onthispage a:hover{color:var(--primary-ink)}.prose.md .md-h{scroll-margin-top:calc(var(--mast-h) + 22px)}.prose.md h2.md-h{margin:34px 0 12px;padding-top:16px;border-top:1px solid var(--line)}.prose.md h3.md-h{margin:24px 0 9px}.prose.md .md-p{margin:0 0 15px}.prose.md .md-list{margin:0 0 16px;padding-left:22px}.prose.md .md-list li{margin:0 0 7px}.prose.md h2.md-h:first-child,.prose.md>:first-child{margin-top:0;padding-top:0;border-top:0}.prose.md .code pre{padding:12px 0}.filterbar{position:-webkit-sticky;position:sticky;top:var(--mast-h);z-index:5;display:flex;flex-direction:column;gap:11px;padding:13px 15px;margin:0 0 18px;border:1px solid var(--line);border-radius:var(--r);background:color-mix(in srgb,var(--surface) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.filterbar[data-pending=true]{opacity:.72}.fb-search{flex:1 1 320px;min-width:210px}.fb-groups{display:flex;flex-direction:column;gap:9px}.fb-toggle{display:none}.fb-group{display:flex;align-items:center;gap:10px}.fb-group>.eyebrow{flex:none;min-width:80px}.chip.tog{cursor:pointer;font:inherit;font-family:var(--mono);font-size:10.6px;letter-spacing:.04em;transition:border-color .14s ease,background .14s ease,color .14s ease}.chip.tog:hover{border-color:var(--primary)}.chip.tog[aria-pressed=true]{font-weight:600}.chip.tog[aria-pressed=false]{opacity:.82}.tog-n{opacity:.6;font-size:9.6px}.navbar-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;pointer-events:none}.navbar-progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--cyan));box-shadow:0 0 8px -1px var(--primary);border-radius:0 999px 999px 0}.navbar-progress[data-phase=idle]{opacity:0}.navbar-progress[data-phase=idle]>span{width:0;transition:none}.navbar-progress[data-phase=run]{opacity:1}.navbar-progress[data-phase=run]>span{width:88%;transition:width 9s cubic-bezier(.06,.72,.16,1)}.navbar-progress[data-phase=done]{opacity:0;transition:opacity .18s ease .1s}.navbar-progress[data-phase=done]>span{width:100%;transition:width .16s ease-out}.notif-panel{position:absolute;right:0;top:calc(100% + 10px);width:372px;max-width:88vw}.notif-list{max-height:420px;overflow-y:auto;overscroll-behavior-y:contain}.scroll-top{position:fixed;z-index:35;right:calc(clamp(14px, 2vw, 22px) + env(safe-area-inset-right));bottom:calc(clamp(14px, 2vw, 22px) + env(safe-area-inset-bottom));display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:1px solid var(--line-strong);border-radius:999px;background:color-mix(in srgb,var(--surface) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--muted);cursor:pointer;box-shadow:0 10px 26px -14px rgba(0,0,0,.55);opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .16s ease,transform .16s ease,color .14s ease,border-color .14s ease}.scroll-top[data-show]{opacity:1;pointer-events:auto;transform:none}.scroll-top:hover{color:var(--ink);border-color:var(--primary)}.scroll-top:active{transform:translateY(1px)}.scroll-top:focus-visible{outline:2px solid var(--primary);outline-offset:2px}@media (max-width:1119px){.nav a{padding:7px 11px}:root{--mast-h:114px}body{font-size:15px}.mast-in{flex-wrap:wrap;row-gap:10px;column-gap:12px;padding-top:8px;padding-bottom:8px;min-height:0}.brand{order:1;margin-right:auto;font-size:17px}.mast-bell{order:2}.mast-account{order:3}.mast-in:after{content:"";order:4;flex:0 0 100%;height:0;margin:0}.nav{order:5;flex:1 1;-webkit-overflow-scrolling:touch}.mast-prefs{order:6;flex:none;gap:7px}.mast-prefs .ctl{max-width:30vw}.hero{padding:40px 0 30px}.sep{margin:24px 0}.doc-grid{gap:28px;padding-top:20px}.filterbar{position:static;backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--surface)}.fb-groups{gap:8px}}@media (max-width:619px){.mast-prefs{display:none}.prefs-footer{display:flex}.chip{white-space:normal;overflow-wrap:anywhere;border-radius:var(--r);text-align:left}.chips{gap:5px}.fb-group{flex-direction:column;align-items:flex-start;gap:6px}.fb-group>.eyebrow{min-width:0}.fb-toggle{display:inline-flex}.fb-groups{flex-direction:column;gap:14px;margin-top:11px;padding-top:12px;border-top:1px solid var(--line)}.fb-groups[data-open=false],.fb-sort .eyebrow,.fb-spacer{display:none}.fb-sort{flex:1 1 auto;min-width:0}.fb-sort .ctl{width:100%;font-size:14px}.fb-search{flex:1 1 100%}.fb-toggle{order:3}.fb-count{order:4}.notif-panel{position:fixed;top:calc(var(--mast-h) + 6px);left:max(10px,env(safe-area-inset-left));right:max(10px,env(safe-area-inset-right));width:auto;max-width:none;max-height:calc(100dvh - var(--mast-h) - 24px);display:flex;flex-direction:column}.notif-list{max-height:none;flex:1 1 auto;min-height:0}.fb-groups .chip.tog{white-space:nowrap;border-radius:999px}.mast-prefs .ctl{max-width:36vw}.hero{padding:28px 0 22px}.sep{margin:20px 0}table{font-size:12.8px}td,th{padding:8px 10px;white-space:nowrap}td.wrapcell{white-space:normal}.code code{font-size:12px}.code-head{padding:7px 11px}.ln{padding:0 12px}.diagram-body{padding:12px 10px}body{background:linear-gradient(var(--grid) 1px,transparent 1px) 0 0 /42px 42px,linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0 /42px 42px,var(--bg);background-attachment:scroll,scroll,scroll}body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(28rem 18rem at 92% -4%,var(--glow-a),transparent 66%),radial-gradient(24rem 16rem at 2% 6%,var(--glow-b),transparent 64%)}.hero:before{display:none}}@media (max-width:374px){.brand-text{display:none}.mast-account{gap:6px}.mast-account .btn{padding:8px 11px;font-size:12.4px}}@media (max-height:460px) and (orientation:landscape){.hero{padding:18px 0 16px}.hero h1{font-size:clamp(24px,3.6vw,34px);margin:8px 0 10px}.mast-in{row-gap:6px}}.lens-btn{padding:5px 10px}.textbtn{padding:0}@media (pointer:coarse){.tap-check{width:20px;height:20px;accent-color:var(--primary);flex:none}.tap-label{min-height:40px;padding:4px 0}.lens-btn{padding:9px 14px;min-height:40px}.btn{padding:11px 18px;min-height:44px}.btn[data-size=sm]{padding:8px 14px;min-height:38px}.ctl{padding:8px 11px}.ctl,.nav a{min-height:40px}.nav a{display:inline-flex;align-items:center}.chip.tog{padding:8px 13px;min-height:36px}.cell{width:22px;height:30px}.diagram-toggle{padding:8px 0;min-height:34px}.textbtn{padding:7px 0;min-height:34px}.scroll-top{width:46px;height:46px}.ctl,input,select,textarea{font-size:16px}.mast-prefs .ctl{font-size:13px}}@media (hover:none){.card[data-hover="1"]:hover,a.card:hover{border-color:var(--line);box-shadow:var(--sh-1);transform:none}.btn:hover{transform:none;border-color:var(--line-strong)}.btn[data-variant=primary]:hover{filter:none}.cell:hover{transform:none}.nav a:hover{color:var(--muted);background:transparent;border-color:transparent}.nav a[data-on="1"]:hover{color:var(--primary-ink);background:var(--primary-soft)}tbody tr:hover{background:transparent}.card[data-hover="1"]:active,a.card:active{border-color:color-mix(in srgb,var(--primary) 42%,var(--line-strong))}.btn:active{background:var(--surface-2)}.btn[data-variant=primary]:active{filter:brightness(.94)}}.auth-shell{max-width:468px;margin:0 auto;padding:40px 0 80px}.auth-card{position:relative;padding:26px 26px 24px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);box-shadow:var(--sh-2)}.auth-card:before{content:"";position:absolute;inset:-1px -1px auto;height:140px;border-radius:var(--r) var(--r) 0 0;background:radial-gradient(420px 120px at 50% 0,var(--glow-a),transparent 72%);pointer-events:none}.auth-form{display:grid;grid-gap:15px;gap:15px;margin-top:20px}.auth-field{display:grid;grid-gap:6px;gap:6px}.auth-field label{font-size:12.6px;font-weight:600;color:var(--muted)}.auth-label-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.auth-input{font:inherit;font-size:15px;width:100%;padding:11px 13px;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:var(--bg);color:var(--ink);transition:border-color .14s ease,box-shadow .14s ease}.auth-input::placeholder{color:var(--faint)}.auth-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.auth-input:disabled{opacity:.55;cursor:not-allowed}.auth-with-toggle{position:relative;display:block}.auth-with-toggle .auth-input{padding-right:62px}.auth-toggle{position:absolute;top:50%;right:6px;transform:translateY(-50%);border:0;background:none;cursor:pointer;padding:6px 9px;border-radius:var(--r-sm);font:inherit;font-size:12.6px;font-weight:600;color:var(--primary-ink)}.auth-toggle:hover{background:var(--primary-soft)}.auth-alert{margin:0;padding:11px 13px;border-radius:var(--r-sm);border:1px solid;font-size:13.2px;line-height:1.55}.auth-alert[data-tone=err]{border-color:color-mix(in srgb,var(--danger) 40%,transparent);background:var(--danger-soft);color:var(--danger-ink)}.auth-alert[data-tone=ok]{border-color:color-mix(in srgb,var(--safe) 40%,transparent);background:var(--safe-soft);color:var(--safe-ink)}.auth-alert[data-tone=warn]{border-color:color-mix(in srgb,var(--warn) 40%,transparent);background:var(--warn-soft);color:var(--warn-ink)}.auth-alert-hint{display:block;margin-top:4px;font-weight:400;opacity:.92}.auth-meter{display:grid;grid-gap:5px;gap:5px}.auth-meter-track{height:4px;border-radius:999px;background:var(--line-strong);overflow:hidden}.auth-meter-fill{height:100%;width:0;border-radius:999px;transition:width .25s ease,background-color .25s ease}.auth-meter-fill[data-level="1"]{width:34%;background:var(--danger)}.auth-meter-fill[data-level="2"]{width:67%;background:var(--warn)}.auth-meter-fill[data-level="3"]{width:100%;background:var(--safe)}.auth-submit{width:100%;justify-content:center}.auth-foot{margin:20px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:13.2px;color:var(--muted)}.auth-tick{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--safe-soft);color:var(--safe-ink);font-size:21px;font-weight:700;margin-bottom:14px}@media (max-width:520px){.auth-shell{padding:24px 0 60px}.auth-card{padding:20px 18px}}.sec-facts{display:grid;grid-gap:12px 26px;gap:12px 26px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin:0 0 16px;padding:0}.sec-facts dt{font-size:11.4px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.sec-facts dd{margin:3px 0 0;font-size:13.4px;word-break:break-all}.sec-list{list-style:none;margin:0;padding:0;display:grid;grid-gap:0;gap:0}.sec-list>li{padding:12px 0;border-top:1px solid var(--line)}.sec-list>li:first-child{border-top:0;padding-top:0}@media (max-width:560px){.sec-list>li .btn{margin-left:0!important;width:100%;justify-content:center;margin-top:8px}}.sec-submit{display:flex;justify-content:center;margin-top:4px}.sec-submit .btn{padding:10px 24px}@media (max-width:560px){.sec-submit .btn{width:100%;justify-content:center}}.cmdk-trigger{display:inline-flex;align-items:center;gap:8px;padding:5px 8px 5px 10px;border:1px solid var(--line-strong);border-radius:var(--r);background:var(--surface-2);color:var(--muted);font:inherit;font-size:13px;cursor:pointer;min-width:0}.cmdk-trigger:hover{color:var(--ink);border-color:var(--primary)}.cmdk-trigger-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:26ch}.cmdk-trigger kbd{font-family:var(--mono);font-size:10.5px;padding:1px 5px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--faint,var(--muted))}@media (max-width:900px){.cmdk-trigger kbd,.cmdk-trigger-label{display:none}}.cmdk-backdrop{position:fixed;inset:0;z-index:90;background:rgba(4,7,12,.58);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;justify-content:center;padding:clamp(12px,8vh,90px) var(--gutter) 24px}.cmdk{width:min(780px,100%);max-height:min(70vh,640px);display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--r-lg);box-shadow:var(--sh-3);overflow:hidden}@media (max-width:640px){.cmdk-backdrop{padding:0}.cmdk{width:100%;max-height:100dvh;height:100dvh;border-radius:0;border:none}}.cmdk-row{display:flex;align-items:center;gap:10px;padding:11px 14px;border-bottom:1px solid var(--line)}.cmdk-glyph{color:var(--muted);font-size:16px}.cmdk-input{flex:1 1;min-width:0;background:none;border:none;outline:none;color:var(--ink);font:inherit;font-size:15.5px}.cmdk-input::placeholder{color:var(--faint,var(--muted))}.cmdk-busy{font-family:var(--mono);font-size:11px;color:var(--muted)}.cmdk-scopes{display:flex;align-items:center;gap:16px;overflow-x:auto;scrollbar-width:none}.cmdk-scopes::-webkit-scrollbar{display:none}.cmdk-scopes button{background:none;border:none;padding:2px 0 4px;font:inherit;font-size:13px;color:var(--muted);cursor:pointer;white-space:nowrap}.cmdk-scopes button[data-on=true]{color:var(--ink);font-weight:600;box-shadow:inset 0 -2px 0 var(--primary)}.cmdk-chips{gap:6px;flex-wrap:wrap}.cmdk-chips .chip{cursor:pointer}.cmdk-chips .chip[data-on=true]{color:var(--primary-ink);border-color:color-mix(in srgb,var(--primary) 42%,transparent);background:var(--primary-soft)}.chip-n{font-family:var(--mono);font-size:10.5px;opacity:.7;margin-left:5px}.cmdk-list{flex:1 1;overflow-y:auto;margin:0;padding:4px 0 8px;list-style:none}.cmdk-group{display:flex;align-items:baseline;gap:8px;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint,var(--muted));padding:12px 14px 4px}.cmdk-group em{font-style:normal;font-size:11.5px}.cmdk-clear,.cmdk-group em{text-transform:none;letter-spacing:0}.cmdk-clear{margin-left:auto;background:none;border:none;color:var(--muted);cursor:pointer;font:inherit;font-size:11px}.cmdk-clear:hover{color:var(--danger,#ff6568)}.cmdk-item{display:flex;gap:11px;align-items:flex-start;padding:8px 14px;cursor:pointer}.cmdk-item[data-active]{background:var(--primary-soft)}.cmdk-ic{flex:none;width:22px;height:22px;margin-top:1px;border-radius:var(--r-sm);display:grid;place-items:center;font-family:var(--mono);font-size:11px;background:var(--surface-2);border:1px solid var(--line);color:var(--muted)}.cmdk-ic[data-kind=topic]{color:var(--primary-ink)}.cmdk-ic[data-kind=advisory]{color:var(--danger-ink,#ff6568)}.cmdk-ic[data-kind=lab]{color:var(--warn-ink,#f99c00)}.cmdk-ic[data-kind=lesson]{color:var(--safe-ink,#00d294)}.cmdk-body{min-width:0;display:flex;flex-direction:column;gap:2px}.cmdk-title{font-size:14.5px;font-weight:550}.cmdk-snippet{font-size:13px;color:var(--muted);overflow-wrap:anywhere}.cmdk-snippet mark{background:color-mix(in srgb,var(--warn,#f99c00) 28%,transparent);color:inherit;border-radius:3px;padding:0 2px}.cmdk-meta{font-size:11.5px;color:var(--faint,var(--muted))}.cmdk-lang,.cmdk-meta{font-family:var(--mono)}.cmdk-lang{margin-left:auto;align-self:center;font-size:10px;letter-spacing:.1em;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:1px 5px}.cmdk-empty{display:flex;flex-direction:column;gap:4px;padding:26px 14px;text-align:center;color:var(--muted)}.cmdk-foot{display:flex;gap:14px;align-items:center;padding:9px 14px;border-top:1px solid var(--line);background:var(--surface-2);font-family:var(--mono);font-size:11px;color:var(--faint,var(--muted))}.cmdk-seeall{margin-left:auto;color:var(--primary);text-decoration:none}.cmdk-ms{color:var(--safe-ink,var(--muted))}.srch-head{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}.srch-count{font-family:var(--mono);font-size:12px;color:var(--muted)}.srch-list{display:flex;flex-direction:column;gap:2px;list-style:none;margin:0;padding:0}.srch-item{display:flex;gap:12px;padding:13px 12px;border-radius:var(--r);border:1px solid transparent;text-decoration:none;color:inherit}.srch-item:hover{border-color:var(--line-strong);background:var(--surface-2)}.srch-jump{border-color:color-mix(in srgb,var(--primary) 40%,transparent);background:var(--primary-soft)}.srch-facets{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.mast-search{order:2;display:flex;flex:1 1 200px;min-width:0;max-width:420px}.mast-search .cmdk-trigger{flex:1 1 auto;min-width:0}@media (max-width:640px){.mast-search{order:3;flex-basis:auto}}.notif-dot{flex:none;width:7px;height:7px;margin-top:6px;border-radius:50%;background:transparent}.notif-dot[data-unread=true]{background:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 22%,transparent)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;-webkit-clip-path:inset(50%);clip-path:inset(50%);white-space:nowrap;border:0}.post-editor{display:flex;flex-direction:column;gap:0}.pe-field{width:100%;font:inherit;font-size:14.5px;padding:10px 12px;border-radius:var(--r);border:1px solid var(--line-strong);background:var(--bg-2);color:var(--ink);resize:vertical}.pe-field::placeholder{color:var(--faint)}.editor-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:8px 10px;border:1px solid var(--line-strong);border-bottom:0;border-radius:var(--r) var(--r) 0 0;background:var(--bg-2)}.editor-bar .sep{width:1px;height:18px;background:var(--line-strong);margin:0 4px}.pe-tool{font:inherit;font-size:12.5px;line-height:1;padding:6px 9px;border:1px solid var(--line);border-radius:var(--r-sm,4px);background:var(--bg);color:var(--ink);cursor:pointer;min-width:30px}.pe-tool:hover{border-color:var(--primary)}.editor-panes{display:grid;grid-template-columns:1fr 1fr;grid-gap:0;gap:0;border:1px solid var(--line-strong);border-radius:0 0 var(--r) var(--r);overflow:hidden;background:var(--bg-2)}.editor-panes[data-pane=preview],.editor-panes[data-pane=write]{grid-template-columns:1fr}.editor-pane{min-width:0;overflow:auto;max-height:min(62vh,720px);padding:0 12px}.editor-pane+.editor-pane{border-left:1px solid var(--line)}.editor-pane.preview{padding:12px 16px;background:var(--bg)}.editor-pane.preview .prose{font-size:14.5px}.cm-host{min-height:320px}.lintbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 2px 0;font-size:12.5px}@media (max-width:760px){.editor-panes{grid-template-columns:1fr}.editor-pane+.editor-pane{border-left:0;border-top:1px solid var(--line)}}.diff{margin:0;padding:10px 12px;overflow-x:auto;max-height:420px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg-2);font-family:var(--mono);font-size:12.3px;line-height:1.6}.diff-line{display:block;white-space:pre-wrap}.diff-line.add{background:var(--safe-soft);color:var(--safe-ink)}.diff-line.del{background:var(--danger-soft);color:var(--danger-ink)}.diff-line.skip{color:var(--faint)}