:root {
  --navy: #004081; --navy-90: #1A5394; --navy-tint: #E6EEF5; --navy-line: #CCD9E6; --sky: #A8D8F0;
  --cyan: #00A9DC; --cyan-ink: #007AA3; --cyan-20: #CCEEF8; --band: #E8F6FC;
  --green: #57A11F; --green-20: #E3F0D6; --green-ink: #2F5A10;
  --amber-20: #FFF1D6; --amber-ink: #7A4A00; --coral-20: #FFE2D1; --coral-ink: #8A2E00;
  --rust: #C25E3D; --rust-20: #FDEEEC; --yellow: #F5C842; --term-cmd: #7DDFA8;
  --paper: #FFFFFF; --mist: #F4F6F8; --ink: #0A0A0A; --graphite: #4A4A4A; --line: #E0E4E8; --code-bg: #F3F7FB;
  --on-navy: #FFFFFF; --on-navy-soft: #CCD9E6;
  --sans: "Figtree", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --r-pill: 999px; --r-card: 24px; --r-callout: 16px; --r-item: 12px; --r-sheet: 22px; --r-code: 5px;
  --shadow-stage: 0 6px 30px rgba(0, 64, 129, 0.12);
  color-scheme: light;
}

* { box-sizing: border-box; min-width: 0; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--mist); color: var(--ink); font: 16px/1.6 var(--sans); }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--cyan-ink); }
code { font: 0.86em var(--mono); background: var(--code-bg); border: 1px solid var(--line); border-radius: var(--r-code); padding: 1px 5px; }
h1, h2, h3 { text-wrap: balance; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }
[hidden] { display: none !important; }
.wrap { max-width: 1240px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.muted { color: var(--graphite); }
.small { font-size: 14px; }

.top { position: sticky; top: 0; z-index: 40; background: var(--paper); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 20px; padding-block: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.brand svg { width: 96px; height: auto; display: block; }
.brand b { font-weight: 700; color: var(--navy); font-size: 15px; border-left: 1px solid var(--line); padding-left: 14px; }
.tabs { display: flex; gap: 4px; background: var(--mist); border: 1px solid var(--line); border-radius: var(--r-pill); padding: 4px; margin-left: auto; flex-wrap: wrap; }
.tab { border: 0; background: transparent; border-radius: var(--r-pill); padding: 6px 16px; font-weight: 600; font-size: 14px; color: var(--graphite); text-decoration: none; }
.tab:hover { color: var(--navy); }
.tab[aria-current="page"], .tab[aria-selected="true"] { background: var(--navy); color: var(--on-navy); }

.view { padding-block: 28px 80px; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--navy-90); margin: 0; }
.h-sec { font-size: 19px; font-weight: 600; color: var(--navy); margin: 0; }
.sec { display: grid; gap: 16px; margin-top: 48px; scroll-margin-top: 90px; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

.band { background: var(--band); border-radius: var(--r-callout); padding: 28px 32px; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.band h1 { font-size: clamp(26px, 4vw, 34px); line-height: 1.2; letter-spacing: -0.01em; color: var(--navy); margin: 8px 0 6px; }
.band p { margin: 0; max-width: 62ch; }
.brand-pill { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--navy); background: var(--paper); border-radius: var(--r-pill); padding: 4px 12px 4px 10px; }
.brand-pill i { width: 6px; height: 18px; display: inline-block; background: radial-gradient(circle at 3px 3px, #57A11F 2.6px, transparent 3px), radial-gradient(circle at 3px 9px, #00A9DC 2.6px, transparent 3px), radial-gradient(circle at 3px 15px, #004081 2.6px, transparent 3px); }
.facts { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.fact { font-size: 13px; font-weight: 600; background: var(--paper); color: var(--navy); border-radius: var(--r-pill); padding: 4px 12px; }
.band-art { width: 150px; height: auto; color: var(--navy); }
.band-img { display: block; width: clamp(240px, 30vw, 380px); max-width: 100%; height: auto; border-radius: var(--r-callout); }

.flow { display: flex; align-items: stretch; gap: 10px; overflow-x: auto; padding-bottom: 4px; }
.flow .arrow { align-self: center; color: var(--navy-line); font-size: 22px; flex: none; }
.fcard { flex: 1 1 0; min-width: 190px; background: var(--navy-tint); border-radius: var(--r-card); padding: 20px 22px; display: grid; gap: 4px; align-content: start; }
.fcard b { color: var(--navy); font-size: 17px; }
.fcard span { color: var(--graphite); font-size: 14px; }
.fcard .k { font: 600 12px var(--mono); color: var(--navy-90); }
.fcard.hl { background: var(--navy); }
.fcard.hl b { color: var(--on-navy); }
.fcard.hl span, .fcard.hl .k { color: var(--on-navy-soft); }

.rows { display: grid; gap: 10px; }
.drow { display: grid; grid-template-columns: 44px minmax(0, 1.4fr) minmax(0, 1fr) auto; align-items: center; gap: 16px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-item); padding: 14px 18px; }
.dnum-c { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--navy-tint); color: var(--navy); font-weight: 700; font-variant-numeric: tabular-nums; }
.drow b { color: var(--navy); display: block; font-size: 15px; }
.srow { grid-template-columns: 44px minmax(0, 1fr) auto auto; }
.rrow { grid-template-columns: minmax(0, 1fr) auto auto; }
.qrow { grid-template-columns: 52px minmax(0, 1fr) auto; }
.qrow .dnum-c { width: 44px; border-radius: var(--r-pill); font: 600 13px var(--mono); }
.srow .dnum-c { font: 600 13px var(--mono); }
.srow .chip { justify-self: end; }
.drow .muted { font-size: 13px; }
.bar { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; color: var(--navy); font-variant-numeric: tabular-nums; }
.bar-track { flex: 1; height: 10px; background: var(--navy-tint); border-radius: var(--r-pill); overflow: hidden; }
.bar-fill { height: 100%; background: var(--cyan); border-radius: var(--r-pill); }
.link-btn { color: var(--cyan-ink); font-weight: 600; font-size: 14px; padding: 4px 0; white-space: nowrap; text-decoration: none; }
.link-btn:hover { text-decoration: underline; }

.cgroups { display: grid; gap: 22px; }
.cgroup { display: grid; gap: 8px; }
.crow { display: grid; grid-template-columns: 70px minmax(0, 1fr) auto; gap: 16px; align-items: center; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-item); padding: 12px 16px; }
.cnum { font: 600 13px var(--mono); color: var(--navy-90); }
.crow b { font-weight: 600; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.chip { font-size: 12.5px; font-weight: 600; border-radius: var(--r-pill); padding: 3px 11px; border: 2px solid transparent; text-decoration: none; }
.chip.on { background: var(--cyan-20); color: var(--navy); border: 0; padding: 5px 13px; }
a.chip.on:hover { background: var(--navy); color: var(--on-navy); }
.chip.off { border: 2px dashed var(--line); color: var(--graphite); background: transparent; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.lcard { display: grid; gap: 4px; align-content: start; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-item); padding: 16px 18px; color: inherit; text-decoration: none; }
a.lcard:hover { border-color: var(--navy-90); }
.lcard .k { font: 600 12px var(--mono); color: var(--navy-90); }
.lcard b { color: var(--navy); font-size: 16px; }
.lcard span { color: var(--graphite); font-size: 14px; }

.sheet { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-sheet); padding: 28px clamp(18px, 4vw, 44px) 44px; display: grid; gap: 22px; }

.figure { margin: 0; background: var(--mist); border: 1px solid var(--line); border-radius: var(--r-card); padding: 18px; overflow-x: auto; }
.figure svg { display: block; width: 100%; min-width: 600px; height: auto; }
.figure figcaption { font-size: 13px; color: var(--graphite); margin-top: 8px; }
.fig-node { fill: var(--navy-tint); }
.fig-node.dec { fill: var(--navy); }
.fig-node.end { fill: var(--green-20); }
.fig-node.act { fill: var(--cyan-20); }
.fig-node.bad { fill: var(--rust-20); }
.fig-t { fill: var(--navy); font: 600 14px var(--sans); text-anchor: middle; }
.fig-t.inv { fill: var(--on-navy); }
.fig-s { fill: var(--graphite); font: 12px var(--mono); text-anchor: middle; }
.fig-s.inv { fill: var(--on-navy-soft); }
.fig-e { stroke: var(--navy-90); stroke-width: 2; fill: none; }
.fig-l { fill: var(--navy-90); font: 600 12px var(--mono); }
.fig-arrow { fill: var(--navy-90); }

.steps { display: grid; gap: 10px; counter-reset: st; }
.step { display: grid; grid-template-columns: 36px 1fr; gap: 14px; background: var(--navy-tint); border-radius: var(--r-item); padding: 14px 18px; }
.step::before { counter-increment: st; content: counter(st); width: 32px; height: 32px; border-radius: 50%; background: var(--navy); color: var(--on-navy); display: grid; place-items: center; font-weight: 700; }

.callout { border-radius: var(--r-callout); padding: 16px 20px; display: grid; gap: 4px; align-content: start; }
.callout .lbl { font-weight: 700; }
.c-key { background: var(--navy-tint); }
.c-key .lbl { color: var(--navy); }
.c-warn { background: var(--amber-20); }
.c-warn .lbl { color: var(--amber-ink); }
.c-break { background: var(--rust-20); }
.c-break .lbl { color: var(--rust); }

.compare { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-item); background: var(--paper); }
.compare table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 15px; }
.compare th, .compare td { text-align: left; vertical-align: top; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.compare tr:last-child td { border-bottom: 0; }
.compare th { background: var(--mist); color: var(--navy); font-size: 14px; }
.compare td:first-child { font-weight: 600; color: var(--navy-90); width: 130px; }
.pick { background: var(--green-20); color: var(--green-ink); border-radius: var(--r-pill); font-size: 12px; padding: 2px 9px; margin-left: 8px; }

.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.bugfix { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.bf { border-radius: var(--r-item); padding: 16px 18px; display: grid; gap: 10px; align-content: start; }
.bf.bug { background: var(--rust-20); }
.bf.fix { background: var(--green-20); }
.bf pre { margin: 0; background: var(--paper); border-radius: 8px; padding: 10px 12px; font: 13px/1.6 var(--mono); overflow-x: auto; }
.bf p { margin: 0; }

.tag { justify-self: start; display: inline-block; font-size: 12px; font-weight: 700; border-radius: var(--r-pill); padding: 3px 10px; }
.tag.rust { background: var(--rust-20); color: var(--rust); }
.tag.green { background: var(--green-20); color: var(--green-ink); }
.tag.cyan { background: var(--cyan-20); color: var(--navy); }
.tag.amber { background: var(--amber-20); color: var(--amber-ink); }
.tag.navy { background: var(--navy); color: var(--on-navy); }

.btn { border: 2px solid var(--navy-line); background: var(--paper); color: var(--navy-90); border-radius: var(--r-pill); padding: 6px 16px; font-weight: 600; font-size: 14px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.btn:hover:not(:disabled) { border-color: var(--navy-90); }
.btn.primary { background: var(--navy); border-color: var(--navy); color: var(--on-navy); }
.btn:disabled { opacity: 0.45; cursor: default; }

.next-card { display: flex; align-items: center; justify-content: space-between; gap: 16px; background: var(--navy); color: var(--on-navy); border-radius: var(--r-card); padding: 22px 26px; text-decoration: none; }
.next-card b { display: block; font-size: 18px; }
.next-card span { color: var(--on-navy-soft); font-size: 14px; }

.qcard { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-item); padding: 20px; display: grid; gap: 10px; }
.qcard .qtop { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font: 12px var(--mono); color: var(--graphite); }
.qcard .scenario { margin: 0; }
.qcard .stem { margin: 0; font-weight: 600; color: var(--navy); }
.qopt { display: grid; grid-template-columns: 28px 1fr; gap: 10px; text-align: left; width: 100%; background: var(--paper); border: 2px solid var(--line); border-radius: var(--r-item); padding: 10px 14px; }
.qopt .ql { font-weight: 700; color: var(--navy-90); }
.qopt:hover:not(:disabled) { border-color: var(--navy-90); }
.qopt:disabled { cursor: default; }
.qopt.right { border-color: var(--green); background: var(--green-20); }
.qopt.wrong { border-color: var(--rust); background: var(--rust-20); }
.qopt .why { grid-column: 2; font-size: 14px; color: var(--graphite); }
.explain { display: grid; gap: 8px; padding-top: 10px; border-top: 1px solid var(--line); }
.explain p { margin: 0; }
.why-not { margin: 0; padding-left: 18px; color: var(--graphite); font-size: 14px; }

.presenter { display: grid; width: 100%; max-width: max(320px, calc((100vh - 190px) * 1.7778)); margin-inline: auto; }
.stage-wrap { position: relative; width: 100%; overflow: hidden; border-radius: 12px 12px 0 0; box-shadow: var(--shadow-stage); background: #FFFFFF; }
.stage { position: absolute; top: 0; left: 0; width: 1920px; height: 1080px; transform-origin: 0 0; }
.ctrl { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; background: var(--paper); border: 1px solid var(--line); border-top: 0; border-radius: 0 0 12px 12px; padding: 14px 18px; position: relative; }
.ctrl .count { font: 600 14px var(--mono); color: var(--graphite); margin-left: auto; font-variant-numeric: tabular-nums; }
.ctrl .prog { position: absolute; left: 0; top: 0; width: 100%; height: 3px; background: var(--cyan); transform-origin: 0 50%; transition: transform 0.3s; }
.ctrl .hint { font-size: 13px; color: var(--graphite); }
.stage-wrap:fullscreen { border-radius: 0; box-shadow: none; background: var(--ink); }
.deck { background: var(--ink); overflow: hidden; }
.deck .presenter { position: fixed; inset: 0; max-width: none; display: block; background: var(--ink); }
.deck .stage-wrap { position: absolute; inset: 0; border-radius: 0; box-shadow: none; background: var(--ink); }
.deck .ctrl { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); border: 1px solid var(--line); border-radius: var(--r-pill); padding: 8px 10px 8px 12px; gap: 8px; flex-wrap: nowrap; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.25s; z-index: 5; }
.deck.show-ctrl .ctrl, .deck .ctrl:focus-within { opacity: 1; pointer-events: auto; }
.deck .prog { position: absolute; left: 0; bottom: 0; width: 100%; height: 4px; background: var(--cyan); transform-origin: 0 50%; transition: transform 0.3s; z-index: 6; }
.deck .ctrl .count { margin-left: 4px; }
@media (max-width: 760px) { .deck .ctrl { flex-wrap: wrap; justify-content: center; width: calc(100% - 24px); border-radius: 16px; } .deck .ctrl .hint { display: none; } }
.ov { position: fixed; inset: 0; z-index: 60; background: var(--mist); display: flex; flex-direction: column; }
.ov-head { display: flex; align-items: center; gap: 16px; padding: 14px 24px; background: var(--paper); border-bottom: 1px solid var(--line); }
.ov-head b { color: var(--navy); font-size: 17px; }
.ov-head .hint { font-size: 13px; color: var(--graphite); margin-right: auto; }
.ov-grid { flex: 1; overflow: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; padding: 24px; align-content: start; }
.ov-thumb { position: relative; border: 2px solid var(--line); border-radius: var(--r-item); background: var(--paper); padding: 0; overflow: hidden; text-align: left; }
.ov-thumb:hover { border-color: var(--navy-90); }
.ov-thumb.now { border-color: var(--cyan); outline: 2px solid var(--cyan); }
.ov-box { position: relative; width: 100%; aspect-ratio: 16 / 9; overflow: hidden; pointer-events: none; }
.ov-box > .sl { width: 1920px; height: 1080px; transform-origin: 0 0; }
.ov-n { position: absolute; left: 8px; bottom: 8px; font: 600 12px var(--mono); background: var(--navy); color: var(--on-navy); border-radius: var(--r-pill); padding: 2px 9px; }
.sl-num.s { font-size: 88px; letter-spacing: -2px; }

.sl { position: absolute; inset: 0; background: #FFFFFF; color: #0A0A0A; font-family: var(--sans); overflow: hidden; }
.sl.navy { background: #004081; }
.sl-pad { position: absolute; inset: 0; padding: 128px 128px 160px; display: flex; flex-direction: column; gap: 48px; }
.sl.navy .sl-pad, .sl-pad.c { justify-content: center; }
.sl-head { display: flex; flex-direction: column; gap: 16px; }
.sl-eb { font-size: 24px; font-weight: 700; line-height: 1.4; letter-spacing: 2px; text-transform: uppercase; color: #1A5394; }
.navy .sl-eb { color: #A8D8F0; }
.sl-disp { font-size: 112px; font-weight: 700; line-height: 1.05; letter-spacing: -2px; color: #FFFFFF; max-width: 1150px; margin: 0; }
.sl-title { font-size: 64px; font-weight: 700; line-height: 1.1; letter-spacing: -1px; color: #004081; margin: 0; max-width: 1500px; }
.sl-lead { font-size: 30px; line-height: 1.4; color: #0A0A0A; margin: 0; max-width: 1400px; }
.navy .sl-lead { color: #CCD9E6; max-width: 1000px; }
.sl-logo { position: absolute; left: 128px; bottom: 64px; width: 135px; height: 32px; }
.sl-logo svg { width: 100%; height: 100%; display: block; }
.sl-foot { position: absolute; right: 128px; bottom: 64px; font-size: 24px; color: #4A4A4A; }
.navy .sl-foot { color: #CCD9E6; }
.sl-mark { position: absolute; right: 128px; top: 250px; width: 600px; height: 560px; opacity: 0.16; }
.sl-tags { position: absolute; right: 128px; top: 52px; display: flex; gap: 12px; }
.sl-tag { border-radius: 999px; padding: 10px 24px; font: 700 24px/1.4 var(--sans); background: #CCEEF8; color: #004081; }
.sl-tag.o { background: #FFFFFF; border: 2px solid #CCD9E6; padding: 8px 22px; font-weight: 600; color: #1A5394; }
.sl-flow { display: flex; gap: 16px; align-items: center; }
.sl-flow .ar { font-size: 36px; color: #CCD9E6; }
.sl-row { display: flex; gap: 48px; align-items: center; }
.sl-meme { display: block; align-self: center; height: 440px; width: auto; border: 1px solid #E0E4E8; border-radius: 24px; }
.sl-meme.tall { height: 560px; }
.sl-reveal { opacity: 0; transform: scale(0.94); transition: opacity 0.4s ease, transform 0.4s ease; }
.sl-reveal.on, .ov-box .sl-reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .sl-reveal { transition: none; } }
.sl-card { background: #E6EEF5; border-radius: 24px; padding: 28px; display: flex; flex-direction: column; gap: 8px; }
.sl-card h3 { margin: 0; font-size: 28px; line-height: 1.2; font-weight: 700; color: #004081; }
.sl-card p { margin: 0; font-size: 24px; line-height: 1.4; color: #4A4A4A; }
.sl-card.hl { background: #004081; }
.sl-card.hl h3 { color: #FFFFFF; }
.sl-card.hl p { color: #CCD9E6; }
.sl-card.pain { background: #FDEEEC; }
.sl-card.pain h3 { color: #C25E3D; }
.sl-cols { display: grid; grid-template-columns: 820px 1fr; gap: 48px; }
.sl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.sl-term { background: #004081; border-radius: 24px; overflow: hidden; }
.sl-term .h { background: #1A5394; padding: 14px 32px; font: 400 24px/1.4 var(--mono); color: #CCD9E6; }
.sl-term pre { margin: 0; padding: 24px 36px; font: 400 24px/1.55 var(--mono); color: #FFFFFF; white-space: pre; }
.sl-term b { color: #7DDFA8; font-weight: 400; }
.sl-term i { color: #F5C842; font-style: normal; }
.sl-call { background: #E6EEF5; border-radius: 16px; padding: 24px 32px; font-size: 26px; line-height: 1.4; color: #004081; }
.sl-table { border-collapse: collapse; width: 100%; font-size: 26px; }
.sl-table th, .sl-table td { text-align: left; padding: 18px 24px; border-bottom: 1px solid #E0E4E8; vertical-align: top; }
.sl-table th { color: #1A5394; font-size: 22px; letter-spacing: 1px; text-transform: uppercase; }
.sl-table .rh { color: var(--navy); font-weight: 700; white-space: nowrap; }
.sl-table tr.hl td { background: var(--navy-tint); }
.sl-card .meta { font-size: 22px; font-weight: 600; color: var(--navy); }
.sl-steps.from4 { counter-reset: sst 3; }

.sl-num { font-size: 128px; font-weight: 700; line-height: 1; letter-spacing: -3px; color: var(--navy); }
.sl-card.hl .sl-num { color: var(--on-navy); }
.sl-card.todo { background: var(--paper); border: 3px dashed var(--navy-line); }
.sl-card.alert { flex-direction: row; align-items: center; gap: 36px; padding: 40px 48px; border: 4px solid var(--rust); }
.sl-card.alert svg { flex: none; width: 112px; height: 112px; color: var(--rust); }
.sl-card.alert svg .mk { fill: var(--paper); }
.sl-card.alert h3 { font-size: 48px; color: var(--rust); }
.sl-card.alert p { font-size: 30px; color: var(--ink); margin-top: 8px; }
.sl-card.todo h3 { color: var(--graphite); }
.sl-card a, .sl-call a { color: var(--cyan-ink); font-weight: 600; }
.sl-card.hl a { color: var(--sky); }
.sl-g3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sl-bars { display: grid; gap: 22px; }
.sl-brow { display: grid; grid-template-columns: 70px 520px 1fr 110px; gap: 28px; align-items: center; }
.sl-brow .n { width: 64px; height: 64px; border-radius: 50%; background: var(--navy-tint); color: var(--navy); display: grid; place-items: center; font-size: 28px; font-weight: 700; }
.sl-brow h3 { margin: 0; font-size: 28px; line-height: 1.2; color: var(--navy); }
.sl-brow p { margin: 4px 0 0; font-size: 21px; line-height: 1.35; color: var(--graphite); }
.sl-brow .track { height: 28px; background: var(--navy-tint); border-radius: var(--r-pill); overflow: hidden; }
.sl-brow .fill { height: 100%; background: var(--cyan); border-radius: var(--r-pill); }
.sl-brow .pct { font-size: 40px; font-weight: 700; color: var(--navy); text-align: right; font-variant-numeric: tabular-nums; }
.sl-steps { display: grid; gap: 18px; counter-reset: sst; }
.sl-step { display: grid; grid-template-columns: 64px 1fr; gap: 24px; align-items: center; background: var(--navy-tint); border-radius: 16px; padding: 18px 28px; }
.sl-step::before { counter-increment: sst; content: counter(sst); width: 56px; height: 56px; border-radius: 50%; background: var(--navy); color: var(--on-navy); display: grid; place-items: center; font-size: 26px; font-weight: 700; }
.sl-step h3 { margin: 0; font-size: 28px; color: var(--navy); }
.sl-step p { margin: 2px 0 0; font-size: 22px; color: var(--graphite); }
.sl-step a { color: var(--cyan-ink); font-weight: 600; }

.xm { position: relative; display: flex; flex-direction: column; background: var(--paper); color: var(--ink); border: 1px solid var(--ink); font: 13px/1.5 Verdana, Arial, Helvetica, sans-serif; container-type: inline-size; min-height: 560px; }
.xm button, .xm textarea { font-family: inherit; color: var(--ink); }
.xm [hidden] { display: none !important; }
.xm .sp { flex: 1; }
.xm-top { display: flex; align-items: center; gap: 1.25em; flex-wrap: wrap; padding: 0.6em 1.1em; border-bottom: 2px solid var(--ink); }
.xm-top .brand-t { font-weight: 700; font-size: 1.08em; letter-spacing: 0.5px; }
.xm-top .cand { font-size: 0.85em; }
.xm-meta { font-size: 0.92em; border: 1px solid var(--ink); border-radius: 3px; padding: 0.38em 0.77em; }
.xm-bar { display: flex; align-items: center; gap: 0.77em; padding: 0.46em 1.1em; border-bottom: 1px solid var(--ink); }
.xm-bar .ql { font-weight: 700; }
.xm-btn { font-size: 0.92em; padding: 0.46em 1.1em; border: 1px solid var(--ink); background: var(--paper); border-radius: 3px; }
.xm-btn:hover:not(:disabled) { background: var(--mist); }
.xm-btn:disabled { opacity: 0.45; cursor: default; }
.xm-btn.primary { background: var(--ink); color: var(--paper); font-weight: 700; }
.xm-btn.primary:hover:not(:disabled) { background: var(--graphite); }
.xm-btn.on { border-width: 2px; font-weight: 700; }
.xm-main { flex: 1; min-height: 0; display: flex; padding: 0.77em; }
.xm-pane { flex: 1; min-width: 0; overflow-y: auto; border: 1px solid var(--ink); padding: 1.2em 1.5em; }
.xm-left { flex: 0 0 46%; }
.xm-split { flex: 0 0 8px; }
.xm-pane h4 { margin: 0 0 0.77em; font-size: 0.92em; text-transform: uppercase; letter-spacing: 1px; border-bottom: 1px solid var(--ink); padding-bottom: 0.46em; }
.xm-pane p { margin: 0 0 0.92em; line-height: 1.6; }
.xm-stem { font-weight: 700; line-height: 1.6; margin-bottom: 1.1em; }
.xm-stem p { margin: 0 0 0.6em; }
.xm-hint { font-style: italic; }
.xm-opt { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 0.77em; border: 1px solid var(--ink); padding: 0.77em 0.92em; margin-bottom: 0.6em; cursor: pointer; line-height: 1.5; }
.xm-opt:hover { background: var(--mist); }
.xm-opt input { margin: 0.25em 0 0; }
.xm-opt .t { flex: 1; }
.xm-opt.sel { border-width: 2px; padding: calc(0.77em - 1px) calc(0.92em - 1px); font-weight: 700; }
.xm-opt.struck .t { text-decoration: line-through; opacity: 0.55; }
.xm-opt.right { border: 2px solid var(--green); background: var(--green-20); padding: calc(0.77em - 1px) calc(0.92em - 1px); }
.xm-opt.wrong { border: 2px solid var(--rust); background: var(--rust-20); padding: calc(0.77em - 1px) calc(0.92em - 1px); }
.xm-opt .why { flex: 0 0 100%; padding-left: 1.9em; font: 400 0.95em/1.45 var(--sans); color: var(--graphite); }
.xm-strike { flex: none; font-size: 0.92em; line-height: 1; font-weight: 700; border: 1px solid var(--ink); background: var(--paper); padding: 0.15em 0.46em; border-radius: 3px; cursor: pointer; text-decoration: line-through; }
.xm-strike:hover { background: var(--mist); }
.xm-strike.on { background: var(--ink); color: var(--paper); }
.xm-key { border-radius: 3px; transition: background 0.3s; }
.xm-key.lit { background: var(--yellow); padding: 0 0.15em; }
.xm-trap, .xm-tip { border-radius: 10px; padding: 0.7em 0.9em; margin-top: 0.8em; font: 1.02em/1.5 var(--sans); }
.xm-trap { background: var(--rust-20); }
.xm-trap b { color: var(--rust); }
.xm-tip { background: var(--amber-20); }
.xm-tip b { color: var(--amber-ink); }
.xm-bot { display: flex; align-items: center; gap: 0.6em; flex-wrap: wrap; padding: 0.6em 1.1em; border-top: 1px solid var(--ink); }
.xm-review { flex: 1; min-height: 0; overflow: auto; padding: 1.1em; }
.xm-review .card { border: 1px solid var(--ink); padding: 1.4em 1.5em; }
.xm-review h2 { margin: 0 0 0.46em; font-size: 1.23em; }
.xm-review .legend { font-size: 0.85em; margin: 0 0 1.1em; }
.xm-review table { border-collapse: collapse; width: 100%; }
.xm-review th, .xm-review td { border: 1px solid var(--ink); padding: 0.54em 0.77em; text-align: left; font-size: 0.92em; }
.xm-review a { text-decoration: underline; font-weight: 700; cursor: pointer; color: var(--ink); }
.xm-review .acts { margin-top: 1.2em; }
.xm-tag { display: inline-block; padding: 0.15em 0.6em; border-radius: 10px; font-size: 0.85em; border: 1px solid var(--ink); }
.xm-tag.no { font-weight: 700; }
.xm-tag.fl { border-width: 2px; font-weight: 700; }
.xm-ovl { position: absolute; inset: 0; z-index: 3; display: flex; align-items: center; justify-content: center; background: color-mix(in srgb, var(--ink) 45%, transparent); }
.xm-dlg { background: var(--paper); width: 36em; max-width: 92%; border: 2px solid var(--ink); }
.xm-dlg .hd { padding: 0.6em 1.1em; font-weight: 700; border-bottom: 1px solid var(--ink); }
.xm-dlg .bd { padding: 1.1em; }
.xm-dlg .bd p { margin: 0 0 0.6em; }
.xm-dlg textarea { width: 100%; height: 8em; font-size: 0.92em; padding: 0.6em; border: 1px solid var(--ink); resize: vertical; }
.xm-dlg .ft { padding: 0.77em 1.1em; border-top: 1px solid var(--ink); display: flex; justify-content: flex-end; gap: 0.6em; }
.sl.xm-slide { background: var(--paper); }
.xm-slide .xm { position: absolute; inset: 0 0 104px; border: 0; border-bottom: 1px solid var(--ink); min-height: 0; font-size: 20px; }
.xm-slide .xm-left { flex-basis: 36%; }
.xm-slide .xm-stem, .xm-slide .xm-opt .t { font-size: 23px; }
@container (max-width: 720px) { .xm-main { flex-direction: column; } .xm-left { flex: none; } .xm-split { flex: 0 0 8px; } .xm-top .cand { display: none; } }

.sim-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-item); padding: 10px 12px; }
.sim-title { display: grid; gap: 2px; margin-bottom: 14px; }
.embed header.top, .embed .sim-title { display: none; }
.embed .view { padding-top: 16px; }
.flow-cap { margin: 8px 0 0; font-size: 13px; line-height: 1.5; color: var(--graphite); }
.flow-cap b { color: var(--navy); }
.sim-title h1 { margin: 0; font-size: clamp(22px, 3vw, 28px); color: var(--navy); line-height: 1.25; }
.dot { flex: 1; height: 6px; border-radius: 3px; background: var(--navy-tint); border: 0; padding: 0; }
.dot.done { background: var(--navy-line); }
.dot.now { background: var(--cyan); }
.dots { display: flex; gap: 4px; }
.counter { font: 600 13px var(--mono); color: var(--graphite); font-variant-numeric: tabular-nums; }
.panel { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-item); }
.code-panel { display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.panel-head { display: flex; gap: 10px; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--graphite); }
.panel-head .file { font: 600 13px var(--mono); color: var(--navy); }
.panel-head .right { margin-left: auto; }
.code { flex: 1; overflow: auto; padding: 10px 0 40px; font: 12.5px/1.7 var(--mono); background: var(--code-bg); }
.ln { display: grid; grid-template-columns: 44px 1fr; padding-right: 14px; border-left: 3px solid transparent; transition: background 0.25s, opacity 0.25s; opacity: 0.5; }
.ln .no { color: var(--graphite); text-align: right; padding-right: 12px; user-select: none; }
.ln .tx { white-space: pre-wrap; word-break: break-word; }
.ln.hl { opacity: 1; background: var(--cyan-20); border-left-color: var(--cyan); }
.ln.hl .no { color: var(--navy); font-weight: 600; }
.pk { color: var(--navy-90); font-weight: 600; }
.ps { color: var(--green-ink); }
.pn { color: var(--coral-ink); }
.pf { color: var(--cyan-ink); }
.flowbox { padding: 8px 12px; background: var(--mist); }
.flowbox svg { display: block; width: 100%; height: auto; max-height: 220px; }
.node rect { fill: var(--paper); stroke: var(--line); stroke-width: 1.5; transition: fill 0.25s, stroke 0.25s; }
.node .nt { fill: var(--navy); font: 600 13px var(--sans); text-anchor: middle; }
.node .ns { fill: var(--graphite); font: 10.5px var(--mono); text-anchor: middle; }
.node.on rect { fill: var(--navy); stroke: var(--navy); }
.node.on .nt { fill: var(--on-navy); }
.node.on .ns { fill: var(--on-navy-soft); }
.node.pulse rect { animation: pulse 1.2s ease-in-out infinite; }
.edge { stroke: var(--navy-line); stroke-width: 2; }
.edge.on { stroke: var(--cyan); stroke-dasharray: 6 6; animation: dash 0.7s linear infinite; }
.edge.on.rev { animation-direction: reverse; }
.pkt { fill: var(--cyan); }
@keyframes dash { to { stroke-dashoffset: -12; } }
@keyframes pulse { 50% { stroke: var(--cyan); stroke-width: 4; } }
.scard { padding: 16px 18px; display: grid; gap: 8px; }
.scard-top { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.scard .edge-label { font: 12.5px var(--mono); color: var(--graphite); }
.scard .lat { margin-left: auto; font: 12px var(--mono); color: var(--graphite); }
.scard h2 { margin: 0; font-size: 21px; line-height: 1.3; color: var(--navy); }
.scard p { margin: 0; }
.tip { background: var(--amber-20); border-radius: var(--r-callout); padding: 10px 14px; font-size: 14.5px; }
.tip b { color: var(--amber-ink); margin-right: 6px; }
.k-user, .k-final { background: var(--green-20); color: var(--green-ink); }
.k-request, .k-response { background: var(--cyan-20); color: var(--navy); }
.k-decision { background: var(--navy); color: var(--on-navy); }
.k-tool { background: var(--amber-20); color: var(--amber-ink); }
.k-error { background: var(--rust-20); color: var(--rust); }
.k-warn { background: var(--coral-20); color: var(--coral-ink); }
.stbox { padding: 12px 16px; display: grid; gap: 8px; }
.st-head { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; font-size: 13px; color: var(--graphite); }
.st-head b { font-family: var(--mono); color: var(--navy); }
.st-head .tok { font: 12px var(--mono); }
.mchips { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.mchip { font: 12px var(--mono); padding: 3px 10px; border-radius: var(--r-pill); }
.mchip b { font-weight: 600; margin-right: 4px; }
.mchip.r-user { background: var(--green-20); color: var(--green-ink); }
.mchip.r-assistant { background: var(--cyan-20); color: var(--navy); }
.mchip.r-err { background: var(--rust-20); color: var(--rust); }
.mchip.new { animation: pop 0.4s ease-out; }
@keyframes pop { from { transform: scale(0.7); opacity: 0; } }
.empty { font: 12px var(--mono); color: var(--graphite); }
.paybox { display: flex; flex-direction: column; min-height: 200px; }
.paybox pre { margin: 0; padding: 12px 16px; overflow: auto; max-height: 40vh; font: 12px/1.6 var(--mono); white-space: pre-wrap; word-break: break-word; background: var(--code-bg); border-radius: 0 0 var(--r-item) var(--r-item); position: relative; }
.jk { color: var(--navy-90); }
.js { color: var(--green-ink); }
.jn { color: var(--coral-ink); }
.jb { color: var(--amber-ink); }
.paybox mark, .figure mark { background: var(--amber-20); color: inherit; border-radius: 3px; outline: 1px solid var(--amber-ink); }


.scn { background: var(--band); border-radius: var(--r-callout); padding: 18px 22px; display: grid; gap: 12px; }
.scn-runs { display: flex; gap: 8px; flex-wrap: wrap; }
.scn-pill { background: var(--paper); border: 2px solid var(--navy-line); border-radius: var(--r-pill); padding: 5px 14px; display: inline-flex; gap: 8px; align-items: baseline; }
.scn-pill b { color: var(--navy); font-size: 14px; font-weight: 600; }
.scn-pill span { font: 11.5px var(--mono); color: var(--graphite); }
.scn-pill[aria-selected="true"] { background: var(--navy); border-color: var(--navy); }
.scn-pill[aria-selected="true"] b { color: var(--on-navy); }
.scn-pill[aria-selected="true"] span { color: var(--on-navy-soft); }
.scn-body h2 { margin: 4px 0 4px; font-size: clamp(19px, 2.4vw, 23px); line-height: 1.3; color: var(--navy); }
.scn-body p { margin: 0; max-width: 78ch; }

#sim .sim-bar { margin-top: 12px; }
#sim .sim-bar .dots { order: 0; flex: 1 1 160px; }

.v2-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 12px; height: min(64vh, 680px); }
.chat { display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.chat-head { display: flex; gap: 12px; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.chat-head b { display: block; color: var(--navy); font-size: 15px; }
.chat-head span:not(.avatar) { font-size: 13px; color: var(--graphite); }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--navy); color: var(--on-navy); display: grid; place-items: center; font-weight: 700; font-size: 13px; flex: none; }
.chat-log { flex: 1; overflow: auto; padding: 18px 16px; display: flex; flex-direction: column; gap: 10px; background: var(--mist); scroll-behavior: smooth; }
.msg { display: grid; gap: 4px; max-width: 82%; }
.msg.cust { align-self: flex-end; justify-items: end; }
.msg.ai { align-self: flex-start; }
.msg .who { font-size: 12px; font-weight: 600; color: var(--graphite); }
.bub { padding: 10px 14px; border-radius: 16px; display: grid; gap: 2px; font-size: 15px; line-height: 1.5; }
.msg.cust .bub { background: var(--navy); color: var(--on-navy); border-bottom-right-radius: 4px; }
.msg.ai .bub { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg.ai .bub b { color: var(--navy); }
.md-gap { height: 6px; }
.md-h { color: var(--navy); }
.act { align-self: center; display: flex; gap: 8px; align-items: center; font: 12.5px/1.45 var(--mono); color: var(--graphite); background: var(--paper); border: 1px dashed var(--navy-line); border-radius: var(--r-pill); padding: 5px 14px; max-width: 94%; }
.act i { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); flex: none; }
.act.ok i { background: var(--green); }
.act.err { background: var(--rust-20); border-color: transparent; color: var(--rust); }
.act.err i { background: var(--rust); }
.act.warn { background: var(--amber-20); border-color: transparent; color: var(--amber-ink); }
.act.warn i { background: var(--amber-ink); }
.act.now, .msg.now .bub { outline: 2px solid var(--cyan); outline-offset: 3px; }
.typing { align-self: flex-start; display: flex; gap: 5px; padding: 12px 14px; background: var(--paper); border: 1px solid var(--line); border-radius: 16px; border-bottom-left-radius: 4px; }
.typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--navy-line); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: 0.2s; }
.typing i:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 50% { background: var(--navy-90); } }
.chat-input { border-top: 1px solid var(--line); padding: 12px 16px; color: var(--graphite); font-size: 14px; }

.behind { display: flex; flex-direction: column; gap: 12px; overflow: auto; min-height: 0; padding-right: 2px; }
.behind .scard-top .eyebrow { margin-right: 2px; }
.behind .stbox { padding: 14px 16px; }
.deep-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.deep { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 16px; margin-top: 12px; height: min(64vh, 620px); }
.deep .code-panel, .deep .paybox { min-height: 0; display: flex; flex-direction: column; overflow: hidden; }
.deep .code { font-size: 14px; line-height: 1.75; }
.deep .paybox pre { flex: 1; max-height: none; font-size: 13.5px; line-height: 1.65; }

@media (max-width: 960px) {
  .code { max-height: 55vh; }
  .grid3, .bugfix { grid-template-columns: 1fr; }
  .drow { grid-template-columns: 40px minmax(0, 1fr); }
  .drow .bar, .drow .link-btn { grid-column: 2; }
  .band { grid-template-columns: 1fr; }
  .band-art { display: none; }
  .band-img { width: 100%; }
  .crow { grid-template-columns: 60px minmax(0, 1fr); }
  .crow .chips { grid-column: 2; justify-content: flex-start; }
  .tabs { margin-left: 0; }
  .v2-grid { grid-template-columns: 1fr; height: auto; }
  .chat-log { max-height: 60vh; }
  .deep { grid-template-columns: 1fr; height: auto; }
  .deep .code, .deep .paybox pre { max-height: 60vh; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

.live-pill { display: inline-flex; align-items: center; gap: 6px; border-radius: var(--r-pill); padding: 4px 12px; font: 600 13px var(--sans); background: var(--mist); color: var(--graphite); }
.live-pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--graphite); }
.live-pill.on { background: var(--green-20); color: var(--green-ink); }
.live-pill.on::before { background: var(--green); }
.live-pill.err { background: var(--rust-20); color: var(--coral-ink); white-space: normal; }
.live-pill.err::before { background: var(--rust); }
.live-panel { position: fixed; right: 24px; bottom: 84px; z-index: 70; width: min(340px, calc(100% - 32px)); display: grid; gap: 12px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-callout); padding: 18px; font-family: var(--sans); color: var(--ink); }
.live-panel b { color: var(--navy); font-size: 17px; }
.live-panel label { display: grid; gap: 6px; font-size: 14px; color: var(--graphite); }
.live-panel input { font: 15px var(--mono); padding: 8px 10px; border: 2px solid var(--navy-line); border-radius: var(--r-item); }
.live-panel input:focus { outline: none; border-color: var(--cyan); }
.live-panel .acts { display: flex; gap: 8px; flex-wrap: wrap; }
.live-panel .hint { margin: 0; font-size: 13px; color: var(--graphite); }
.live-bars { position: absolute; left: 0; right: 0; bottom: 0; height: 104px; display: flex; align-items: center; gap: 36px; padding: 0 48px; background: var(--paper); font: 600 24px var(--sans); color: var(--navy); z-index: 2; }
.live-bars-t { font-size: 22px; color: var(--graphite); white-space: nowrap; }
.live-bars .lb { flex: 1; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; }
.live-bars .lb-track { height: 22px; background: var(--navy-tint); border-radius: var(--r-pill); overflow: hidden; }
.live-bars .lb-fill { display: block; height: 100%; background: var(--cyan); border-radius: var(--r-pill); }
.live-bars .lb-n { font: 600 20px var(--mono); color: var(--graphite); white-space: nowrap; }
.live-embed { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; min-height: 240px; background: var(--mist); border: 2px dashed var(--navy-line); border-radius: var(--r-card); font: 600 32px var(--sans); color: var(--graphite); }