@font-face { font-family: Archivo; src: url('/assets/fonts/archivo-variable.ttf') format('truetype'); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('/assets/fonts/jetbrains-mono-variable.ttf') format('truetype'); font-weight: 100 800; font-display: swap; }
/* ---------- Tokens: the palette of the Comis architecture drawing ---------- */
:root {
  --paper: #ffffff; --wash: #f3f4f6;
  --ink: #111418; --ink-2: #414853; --ink-3: #69717d; --hair: #d7dbe1;
  --blue: #2458e6; --blue-ink: #1c46bd; --blue-bg: #e8eeff;
  --green: #12a05a; --green-ink: #0a7340; --green-bg: #e2f5ea;
  --coral: #e5493b; --coral-ink: #b3322a; --coral-bg: #fdebe8;
  --violet: #7a4fd8; --violet-bg: #f0eafc;
  --yellow: #f2b83c; --yellow-bg: #fdf3d9;
  --night: #111418; --night-rule: #343b46; --night-ink: #f1f3f5; --night-ink-2: #aeb6c2;
  --w: 1240px; --g: clamp(20px, 4vw, 40px);
  --display: "Archivo", "Arial Black", system-ui, sans-serif;
  --text: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.55 var(--text); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
:where(.grid) > * { min-width: 0; }
:where(p, h1, h2, h3, li, dd, figcaption) { overflow-wrap: anywhere; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; }
svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }
html:not(.js) [data-actions] { display: none; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.blue :focus-visible, .dark :focus-visible { outline-color: var(--yellow); }
.skip { position: fixed; top: 8px; left: 8px; z-index: 50; background: var(--ink); color: #fff; padding: 12px 20px; transform: translateY(-150%); }
.skip:focus { transform: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.wrap { max-width: var(--w); margin-inline: auto; padding-inline: var(--g); }
.mono { font-family: var(--mono); }
.display { font-family: var(--display); font-stretch: 125%; font-weight: 800; letter-spacing: -.022em; text-wrap: balance; }

/* ---------- Letterhead and header ---------- */
.letter { background: var(--ink); color: #fff; font: 500 .72rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.letter .wrap { display: flex; justify-content: space-between; gap: 24px; padding-block: 9px; }
.letter span { white-space: nowrap; }
.letter a { text-decoration: none; }
.letter a:hover { text-decoration: underline; }
.top { position: sticky; top: 0; z-index: 20; background: var(--paper); border-bottom: 1px solid var(--ink); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 62px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 800 1.3rem/1 var(--display); font-stretch: 125%; letter-spacing: -.02em; }
.brand svg { width: 24px; height: 24px; }
.nav { display: flex; gap: 26px; margin-left: auto; font-size: .93rem; font-weight: 500; }
.nav a { text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover { border-bottom-color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; background: var(--ink); color: #fff; border: 1px solid var(--ink); font-weight: 600; font-size: .95rem; text-decoration: none; transition: background .15s, border-color .15s, color .15s; }
.btn:hover { background: var(--blue); border-color: var(--blue); }
.btn.line { background: transparent; color: var(--ink); }
.btn.line:hover { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- Hero ---------- */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 72px); align-items: center; padding-block: clamp(40px, 6vw, 84px) clamp(48px, 6vw, 92px); }
.kicker { display: flex; align-items: center; gap: 10px; font: 500 .76rem/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.kicker::before { content: ""; width: 10px; height: 10px; background: var(--green); flex: none; }
h1 { font-size: clamp(2.9rem, 7.5vw, 6rem); line-height: .94; margin: 22px 0 26px; }
h1 span { display: block; }
h1 .keep { color: var(--green-ink); }
.lede { font-size: clamp(1.1rem, 1.5vw, 1.3rem); line-height: 1.5; color: var(--ink-2); max-width: 33em; text-wrap: pretty; }
.lede strong { color: var(--ink); font-weight: 600; }

/* ---------- The install block (used twice) ---------- */
.install { margin-top: 34px; border: 1px solid var(--ink); background: var(--paper); max-width: 640px; }
.install-top { display: flex; align-items: stretch; justify-content: space-between; border-bottom: 1px solid var(--ink); }
.install-title { padding: 11px 16px; font: 500 .74rem/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); align-self: center; }
.os { display: flex; }
.os button { border: 0; border-left: 1px solid var(--ink); background: transparent; padding: 0 16px; min-height: 42px; font: 500 .82rem/1 var(--text); color: var(--ink-2); white-space: nowrap; }
.os button[aria-pressed="true"] { background: var(--ink); color: #fff; }
.install-cmd { display: flex; align-items: stretch; }
.cmdline { flex: 1 1 auto; min-width: 0; padding: 20px 16px; font: 500 clamp(.86rem, 1.35vw, 1.06rem)/1.5 var(--mono); white-space: pre-wrap; overflow-wrap: anywhere; color: var(--ink); }
.cmdline .p { color: var(--green-ink); font-weight: 700; user-select: none; margin-right: .5ch; }
.copy { flex: none; border: 0; border-left: 1px solid var(--ink); background: var(--yellow); color: var(--ink); font: 700 .8rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 0 22px; min-width: 104px; transition: background .15s, color .15s; }
.copy:hover { background: var(--ink); color: #fff; }
.copy.done { background: var(--green); color: #fff; }
.install-note { border-top: 1px solid var(--hair); padding: 11px 16px; font-size: .88rem; color: var(--ink-2); }
.install-note a { text-underline-offset: 3px; }
.install-note.release-note { background: var(--yellow-bg); color: var(--ink); }
.release-note strong { font-weight: 700; }
html[data-os="unix"] [data-os-only="win"], html[data-os="win"] [data-os-only="unix"] { display: none; }
.status { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px 18px; font: 500 .74rem/1.4 var(--mono); letter-spacing: .04em; color: var(--ink-3); }
.status b { color: var(--coral-ink); font-weight: 700; }

/* ---------- Fig. 1: the Gate arch and the approval card ---------- */
.fig1 { justify-self: center; width: 100%; max-width: 460px; }
.arch { background: var(--green); border-radius: 999px 999px 0 0; padding: 0 18px 18px; }
.arch-cap { height: clamp(120px, 15vw, 164px); display: grid; place-content: center; justify-items: center; gap: 10px; color: #fff; padding-top: 18px; }
.arch-cap svg { width: 34px; height: 40px; }
.arch-cap span { font: 700 .74rem/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ink); }
.thread { background: var(--paper); font-size: .92rem; line-height: 1.42; }
.thread-head { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-bottom: 1px solid var(--hair); }
.ava { width: 34px; height: 34px; background: var(--ink); color: #fff; display: grid; place-items: center; font: 700 .72rem/1 var(--mono); flex: none; }
.thread-head strong { display: block; font-weight: 700; font-size: .95rem; line-height: 1.2; }
.thread-head small { color: var(--ink-3); font-size: .78rem; }
.thread-head .clock { margin-left: auto; font: 500 .74rem/1 var(--mono); color: var(--ink-3); }
.msgs { display: flex; flex-direction: column; gap: 10px; padding: 14px; }
.msg { max-width: 86%; padding: 9px 12px; }
.msg.me { align-self: flex-end; background: var(--blue); color: #fff; }
.msg.cs { align-self: flex-start; background: var(--wash); }
.sys { align-self: center; display: flex; align-items: center; gap: 8px; font: 500 .72rem/1.3 var(--mono); color: var(--ink-3); }
.sys i { width: 8px; height: 8px; background: var(--violet); flex: none; }
.card { border: 1px solid var(--ink); }
.card-band { display: flex; justify-content: space-between; gap: 12px; padding: 8px 12px; background: var(--coral-ink); color: #fff; font: 700 .7rem/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; transition: background .2s; }
.card[data-state="approved"] .card-band { background: var(--green-ink); }
.card[data-state="denied"] .card-band { background: var(--ink); }
.card-body { padding: 12px; }
.card-title { display: block; font-weight: 700; font-size: 1rem; line-height: 1.25; }
.card-dl { margin-top: 9px; border-top: 1px solid var(--hair); font: 400 .76rem/1.45 var(--mono); }
.card-dl div { display: grid; grid-template-columns: 5.4em minmax(0, 1fr); gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--hair); }
.card-dl dt { color: var(--ink-3); }
.card-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.card-actions button { min-height: 44px; border: 1px solid var(--ink); font-weight: 700; font-size: .92rem; transition: background .15s, color .15s; }
.card-actions .ok { background: var(--green-ink); border-color: var(--green-ink); color: #fff; }
.card-actions .ok:hover { background: var(--ink); border-color: var(--ink); }
.card-actions .no { background: var(--paper); }
.card-actions .no:hover { background: var(--ink); color: #fff; }
.card-result { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; margin-top: 12px; min-height: 44px; font: 500 .74rem/1.4 var(--mono); color: var(--ink-2); }
.stamp { display: inline-block; padding: 5px 9px 4px; border: 2px solid var(--green-ink); color: var(--green-ink); font: 700 .74rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; transform: rotate(-4deg); }
.card[data-state="denied"] .stamp { border-color: var(--ink); color: var(--ink); }
.again { margin-left: auto; border: 0; background: none; min-height: 44px; padding: 6px 0; font: 500 .74rem/1 var(--mono); text-decoration: underline; text-underline-offset: 3px; color: var(--ink-2); }
.fig1 figcaption, .figcap { margin-top: 12px; font: 400 .74rem/1.5 var(--mono); color: var(--ink-3); }
.figcap b, .fig1 figcaption b { color: var(--ink); font-weight: 700; margin-right: .6ch; }
/* Messages arrive one by one. Without scripts they are simply all there. */
.js .msgs [data-step] { opacity: 0; transform: translateY(8px); }
.js .msgs [data-step].on { opacity: 1; transform: none; transition: opacity .35s ease, transform .35s ease; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .msgs [data-step] { opacity: 1; transform: none; transition: none; }
}

/* ---------- Sections ---------- */
.sec > .wrap { padding-block: clamp(30px, 4vw, 56px) clamp(56px, 7vw, 104px); }
.hero + .sec > .wrap { padding-top: 0; }
.dark.sec > .wrap, .blue.sec > .wrap { padding-top: clamp(48px, 6vw, 84px); }
.sec > .wrap::before { content: ""; display: block; border-top: 1px solid var(--ink); margin-bottom: 18px; }
.sec-head { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); gap: 16px clamp(24px, 4vw, 48px); margin-bottom: clamp(32px, 4.5vw, 60px); }
.sec-no { display: flex; align-items: flex-start; gap: 12px; font: 500 .76rem/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); padding-top: 2px; }
.sec-no b { font-weight: 700; color: var(--ink); }
h2 { font-size: clamp(2rem, 4.6vw, 3.7rem); line-height: 1; }
.sec-lede { margin-top: 18px; font-size: clamp(1.05rem, 1.35vw, 1.2rem); color: var(--ink-2); max-width: 36em; text-wrap: pretty; }

/* 01 What it does: a ruled two-by-two, each cell with a specimen */
.does { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.cell { border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); display: flex; flex-direction: column; }
.spec { min-height: 272px; display: grid; place-items: center; padding: clamp(18px, 3vw, 34px); border-bottom: 1px solid var(--ink); }
.spec > * { width: 100%; max-width: 440px; }
.cell-a .spec { background: var(--blue-bg); } .cell-b .spec { background: var(--violet-bg); }
.cell-c .spec { background: var(--yellow-bg); } .cell-d .spec { background: var(--green-bg); }
.cell-text { padding: clamp(20px, 2.6vw, 32px); }
.cell-text .tag { font: 700 .74rem/1 var(--mono); letter-spacing: .1em; color: var(--ink-3); }
h3 { font: 700 1.42rem/1.2 var(--text); letter-spacing: -.012em; margin: 10px 0 10px; text-wrap: balance; }
.cell-text p { color: var(--ink-2); max-width: 34em; text-wrap: pretty; }
/* specimen: channels */
.ch text { font-family: var(--text); font-size: 16px; font-weight: 600; fill: var(--ink); }
.ch .w { fill: #fff; font-weight: 700; }
/* specimen: tasks */
.tasks { background: var(--paper); border: 1px solid var(--ink); font-size: .92rem; }
.tasks li { display: grid; grid-template-columns: 5.6rem minmax(0, 1fr); align-items: center; gap: 12px; padding: 10px 12px; border-top: 1px solid var(--hair); }
.tasks li:first-child { border-top: 0; }
.st { font: 700 .66rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 6px 0 5px; text-align: center; border: 1px solid var(--ink); }
.st.done { background: var(--green-ink); border-color: var(--green-ink); color: #fff; }
.st.run { background: var(--blue); border-color: var(--blue); color: #fff; }
.st.wait { background: var(--yellow); border-color: var(--yellow); }
/* specimen: hand-off browser */
.hb { background: var(--paper); border: 1px solid var(--ink); }
.hb-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; border-bottom: 1px solid var(--ink); font: 400 .74rem/1 var(--mono); color: var(--ink-2); }
.hb-bar i { width: 8px; height: 8px; border: 1px solid var(--ink); border-radius: 50%; flex: none; }
.hb-bar span { margin-left: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hb-body { padding: 16px 14px; }
.hb-body .hb-label { display: block; font-size: .8rem; font-weight: 600; margin-bottom: 6px; }
.hb-field { border: 1px solid var(--ink); padding: 9px 12px; font: 700 1rem/1 var(--mono); letter-spacing: .2em; }
.hb-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.hb-tags span { font: 700 .66rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 6px 8px 5px; }
.hb-tags .you { background: var(--ink); color: #fff; }
.hb-tags .agent { border: 1px solid var(--ink); }
/* specimen: memory file */
.file { background: var(--paper); border: 1px solid var(--ink); font: 400 .8rem/1.6 var(--mono); }
.file-bar { display: flex; justify-content: space-between; gap: 12px; padding: 8px 12px; border-bottom: 1px solid var(--ink); font-weight: 700; }
.file-bar span { color: var(--ink-3); font-weight: 400; }
.file pre { margin: 0; padding: 12px; font: inherit; white-space: pre-wrap; }
.file .h { font-weight: 700; }
.file-log { border-top: 1px solid var(--hair); padding: 8px 12px; color: var(--ink-2); }
.file-log b { color: var(--green-ink); }

/* 02 How it works */
.dg-frame { border: 1px solid var(--ink); padding: clamp(14px, 2.4vw, 30px); }
.dg text { font-family: var(--text); fill: var(--ink-2); font-size: 14px; }
.dg .nm { font-family: var(--display); font-stretch: 125%; font-weight: 800; letter-spacing: -.02em; fill: var(--ink); font-size: 23px; }
.dg .nm-s { font-size: 18px; }
.dg .lb { font-weight: 600; font-size: 13.5px; }
.dg .lb-b { fill: var(--blue-ink); } .dg .lb-c { fill: var(--coral-ink); }
.dg .o { fill: #fff; stroke: var(--ink); stroke-width: 3; stroke-linejoin: round; }
.dg .l { fill: none; stroke: var(--ink); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.dg .f-blue { fill: var(--blue); } .dg .f-green { fill: var(--green); } .dg .f-yellow { fill: var(--yellow); } .dg .f-violet { fill: var(--violet); } .dg .f-grey { fill: #c9ced6; } .dg .f-coral { fill: var(--coral); }
.dg .t-blue { fill: var(--blue-bg); } .dg .t-violet { fill: var(--violet-bg); } .dg .t-yellow { fill: var(--yellow-bg); }
.dg .a { fill: none; stroke: var(--blue); stroke-width: 3.5; stroke-linecap: round; }
.dg .a.c { stroke: var(--coral); }
.dg .a.d { stroke-dasharray: 8 8; }
.dg-v { display: none; margin-inline: auto; max-width: 400px; }
.stations { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--ink); border-top: 0; }
.stations li { padding: 20px 18px 22px; border-left: 1px solid var(--hair); font-size: .95rem; color: var(--ink-2); }
.stations li:first-child { border-left: 0; }
.stations strong, .notes strong { display: flex; align-items: center; gap: 9px; font-size: 1.05rem; color: var(--ink); margin-bottom: 6px; }
.stations strong::before, .notes strong::before { content: ""; width: 10px; height: 10px; background: var(--c, var(--ink)); flex: none; }
.notes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(24px, 4vw, 48px); margin-top: 28px; }
.notes li { border-top: 1px solid var(--ink); padding: 18px 0 0; color: var(--ink-2); max-width: 36em; }
.notes code, .sec-lede code, .steps code, .req code, .aside code { font: 500 .9em var(--mono); }

/* 03 Owner control: the one dark band */
.dark { background: var(--night); color: var(--night-ink); }
.dark.sec > .wrap::before { border-color: var(--night-ink); }
.dark .sec-no, .dark .sec-lede { color: var(--night-ink-2); }
.dark .sec-no b { color: #fff; }
.control { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.ledger li { display: grid; grid-template-columns: 2.6rem 11.5rem minmax(0, 1fr); gap: 4px 16px; padding: 18px 0; border-top: 1px solid var(--night-rule); }
.ledger li:last-child { border-bottom: 1px solid var(--night-rule); }
.ledger .n { font: 700 .78rem/1.9 var(--mono); color: #4fd193; }
.ledger strong { font-weight: 700; font-size: 1.06rem; color: #fff; }
.ledger p { color: var(--night-ink-2); font-size: .98rem; }
.more { display: inline-block; margin-top: 26px; font-weight: 600; color: #fff; text-underline-offset: 5px; text-decoration-thickness: 2px; text-decoration-color: #4fd193; }
.more:hover { color: #4fd193; }
.receipt-wrap { justify-self: center; width: 100%; max-width: 340px; position: sticky; top: 92px; }
.receipt { --z: 9px; background: #fff; color: var(--ink); padding: 22px 20px calc(24px + var(--z)); font: 400 .78rem/1.55 var(--mono);
  -webkit-mask: linear-gradient(#000 0 0) top / 100% calc(100% - var(--z)) no-repeat, conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / calc(2 * var(--z)) var(--z) repeat-x;
  mask: linear-gradient(#000 0 0) top / 100% calc(100% - var(--z)) no-repeat, conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / calc(2 * var(--z)) var(--z) repeat-x; }
.receipt .r-head { display: flex; justify-content: space-between; font-weight: 700; letter-spacing: .08em; }
.receipt hr { border: 0; border-top: 1px dashed var(--ink); margin: 10px 0; }
.receipt .row { display: grid; grid-template-columns: 3.4em minmax(0, 1fr) auto; gap: 8px; }
.receipt .row span:first-child { color: var(--ink-3); }
.receipt .row em { font-style: normal; color: var(--ink-3); }
.receipt .ok { color: var(--green-ink); font-weight: 700; }
.receipt .tot { display: flex; justify-content: space-between; }
.receipt .tot b { font-weight: 700; }
.receipt .r-stamp { margin-top: 14px; text-align: right; }
.receipt .r-stamp .stamp { border-color: var(--coral-ink); color: var(--coral-ink); transform: rotate(-5deg); }
.dark .figcap { color: var(--night-ink-2); }
.dark .figcap b { color: #fff; }

/* 04 Skills */
.skills { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.skills section { padding: 20px 20px 26px 0; border-left: 1px solid var(--hair); padding-left: 20px; }
.skills section:first-child { border-left: 0; padding-left: 0; }
.skills h3 { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; font-size: 1.06rem; margin: 0 0 12px; }
.skills h3 span { font: 500 .74rem/1 var(--mono); color: var(--ink-3); }
.skills li { font: 500 .92rem/1.2 var(--mono); padding: 7px 0; border-top: 1px solid var(--hair); }
.skills p { margin-top: 12px; font-size: .85rem; color: var(--ink-3); }
.cmds { margin-top: clamp(28px, 4vw, 44px); display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); gap: 14px clamp(24px, 4vw, 48px); align-items: start; border-top: 1px solid var(--ink); padding-top: 18px; }
.cmds h3 { margin: 0; font-size: 1.06rem; }
.cmds p { color: var(--ink-2); font-size: .95rem; margin-top: 12px; max-width: 36em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font: 500 .88rem/1 var(--mono); border: 1px solid var(--ink); padding: 8px 10px 7px; }

/* 05 Install: the blue band */
.blue { background: var(--blue); color: #fff; }
.blue.sec > .wrap::before { border-color: #fff; }
.blue .sec-no { color: #dbe4ff; } .blue .sec-no b { color: #fff; }
.blue .sec-lede { color: #e6ecff; }
.blue h2 { font-size: clamp(2.9rem, 8.6vw, 7rem); line-height: .92; }
.blue .install { margin-top: 0; max-width: 820px; border-color: var(--ink); color: var(--ink); }
.blue .cmdline { font-size: clamp(.9rem, 1.9vw, 1.35rem); padding-block: 26px; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 clamp(20px, 3vw, 40px); }
.steps li { border-top: 1px solid #fff; padding-top: 16px; }
.steps .n { font: 800 3.2rem/1 var(--display); font-stretch: 125%; letter-spacing: -.03em; }
.steps strong { display: block; font-size: 1.15rem; margin: 10px 0 6px; }
.steps p { color: #e6ecff; font-size: .98rem; }
.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(28px, 4vw, 48px); margin-top: clamp(40px, 5vw, 64px); }
.two h3 { font-size: 1.15rem; margin: 0 0 14px; }
.req div { display: grid; grid-template-columns: 6.2rem minmax(0, 1fr); gap: 14px; padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, .45); font-size: .96rem; }
.req div:last-child { border-bottom: 1px solid rgba(255, 255, 255, .45); }
.req dt { font: 700 .74rem/1.9 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.req dd { color: #eef2ff; }
.read { background: var(--ink); color: #e8ebf0; padding: 18px 18px 16px; font: 400 .78rem/1.75 var(--mono); }
.read pre { margin: 0; font: inherit; white-space: pre-wrap; overflow-wrap: anywhere; }
.read .c { color: #aeb6c2; }
.read .p { color: #4fd193; user-select: none; }
.aside { margin-top: 14px; font-size: .92rem; color: #e6ecff; }

/* Footer */
.foot .wrap { padding-block: 44px 56px; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 32px clamp(24px, 4vw, 48px); }
.foot p { color: var(--ink-2); font-size: .95rem; max-width: 30em; margin-top: 14px; }
.foot nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; font-size: .95rem; }
.foot h3 { font: 700 .74rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin: 6px 0 12px; }
.foot li { padding: 4px 0; }
.foot nav a { text-decoration: none; }
.foot nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.foot .small { max-width: none; margin: 0; grid-column: 1 / -1; border-top: 1px solid var(--ink); padding-top: 16px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; font: 500 .74rem/1.5 var(--mono); letter-spacing: .04em; color: var(--ink-3); }

/* ---------- Narrower screens ---------- */
@media (max-width: 1020px) {
  .stations { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stations li { border-left: 0; border-top: 1px solid var(--hair); }
  .stations li:nth-child(-n+2) { border-top: 0; }
  .stations li:nth-child(even) { border-left: 1px solid var(--hair); }
  .stations li:last-child { grid-column: 1 / -1; }
  .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skills section:nth-child(3) { border-left: 0; padding-left: 0; }
  .skills section:nth-child(n+3) { border-top: 1px solid var(--ink); }
}
@media (max-width: 900px) {
  .nav { display: none; }
  .top .btn { margin-left: auto; }
  .hero .wrap { grid-template-columns: minmax(0, 1fr); }
  h1 { font-size: clamp(2.7rem, 12.6vw, 5.6rem); font-stretch: 118%; }
  .sec-head, .cmds { grid-template-columns: minmax(0, 1fr); }
  .control { grid-template-columns: minmax(0, 1fr); }
  .receipt-wrap { position: static; }
  .dg-h { display: none; } .dg-v { display: block; }
  .two { grid-template-columns: minmax(0, 1fr); }
  .foot .wrap { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 680px) {
  .blue h2 { font-size: clamp(2.2rem, 11.5vw, 4.6rem); }
  .letter .wrap span:not(:first-child) { display: none; }
  .letter span { white-space: normal; line-height: 1.5; }
  .does { grid-template-columns: minmax(0, 1fr); }
  .spec { min-height: 0; }
  .stations, .notes { grid-template-columns: minmax(0, 1fr); }
  .stations li, .stations li:nth-child(even) { border-left: 0; border-top: 1px solid var(--hair); }
  .stations li:first-child { border-top: 0; }
  .notes { gap: 22px; }
  .ledger li { grid-template-columns: 2.2rem minmax(0, 1fr); }
  .ledger p { grid-column: 2; }
  .steps { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .install-top { flex-direction: column; }
  .install-title { align-self: flex-start; }
  .os { border-top: 1px solid var(--ink); }
  .os button { flex: 1; min-height: 44px; }
  .os button:first-child { border-left: 0; }
  .install-cmd { flex-direction: column; }
  .cmdline { padding: 16px 14px; }
  .copy { border-left: 0; border-top: 1px solid var(--ink); min-height: 48px; }
  .foot nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Navigation and public guides */
.menu-toggle { display: none; align-items: center; justify-content: center; gap: 8px; min-height: 44px; border: 1px solid var(--ink); background: #fff; padding: 8px 12px; font-size: .9rem; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.btn { min-height: 44px; gap: 12px; text-align: center; }
.btn.primary { background: var(--ink); color: #fff; }
.btn.primary:hover { background: var(--green-ink); border-color: var(--green-ink); }
.btn.secondary { background: #fff; color: var(--ink); border: 1px solid var(--ink); }
.btn.light { background: #fff; color: var(--blue-ink); border: 1px solid #fff; }
.btn.light:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.hero .status { max-width: 36em; line-height: 1.6; }
.faq-list { margin-left: 25%; border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--ink); }
.faq-list summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 24px 0; font-weight: 600; font-size: 1.15rem; cursor: pointer; min-height: 64px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; font: 400 28px/1 var(--mono); flex: none; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list details > div { padding: 0 48px 24px 0; color: var(--ink-2); max-width: 44em; }
.faq-list a { text-underline-offset: 4px; }
.closing { margin-left: 25%; }
.closing h2 { margin: 28px 0; }
.closing p:not(.sec-no) { font-size: 1.2rem; color: #eef2ff; }
.closing .btn { margin-top: 32px; }
.guide { padding-block: clamp(42px,6vw,80px) clamp(64px,8vw,112px); }
.guide-head { max-width: 900px; margin-bottom: clamp(40px,6vw,72px); }
.guide h1 { font-size: clamp(2.7rem,6vw,4.7rem); line-height: 1; max-width: 15ch; }
.guide .lede { max-width: 42em; }
.guide-body { display: grid; grid-template-columns: minmax(0,3fr) minmax(0,7fr); gap: clamp(30px,5vw,80px); }
.guide-aside { border-top: 1px solid var(--ink); padding-top: 18px; }
.guide-aside p { font: 500 .76rem/1.6 var(--mono); color: var(--ink-2); }
.prose { min-width: 0; }
.prose h2 { font: 800 clamp(1.6rem,3vw,2.2rem)/1.15 var(--display); font-stretch: 125%; margin: 38px 0 18px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 26px 0 12px; }
.prose p { color: var(--ink-2); margin: 14px 0; max-width: 44em; }
.prose ul, .prose ol { padding-left: 1.25em; margin: 16px 0; list-style: disc; color: var(--ink-2); }
.prose ol { list-style: decimal; }
.prose li { margin: 10px 0; }
.prose a { text-underline-offset: 4px; }
.notice { padding: 24px; border: 1px solid var(--ink); background: var(--yellow-bg); margin: 24px 0 32px; }
.notice p { color: var(--ink); margin: 8px 0 0; }
.notice strong { font-size: 1.15rem; }
.platforms { display: flex; flex-wrap: wrap; border: 1px solid var(--ink); margin-top: 24px; }
.platforms button { flex: 1; min-height: 48px; background: #fff; border: 0; padding: 12px 18px; font-weight: 600; }
.platforms button + button { border-left: 1px solid var(--ink); }
.platforms button[aria-pressed=true] { background: var(--ink); color: #fff; }
.platform-panel { border: 1px solid var(--ink); border-top: 0; padding: 24px; }
.platform-panel h3 { margin-top: 0; }
.platforms { display: none; }
.js .platforms { display: flex; }
.resource-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; margin: 32px 0; }
.resource { min-width: 0; border: 1px solid var(--ink); }
.resource-image { height: 200px; display: grid; place-items: center; padding: 32px; border-bottom: 1px solid var(--ink); background: var(--wash); }
.resource-image img { max-width: 100%; max-height: 140px; object-fit: contain; }
.resource-image.dark { background: var(--ink); }
.resource-info { padding: 20px; }
.resource-info h2 { font: 700 1.25rem/1.2 var(--text); margin: 0 0 12px; }
.resource-info a { display: inline-block; padding: 8px 0; margin-right: 16px; }
.brand-palette { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); margin: 24px 0; }
.brand-palette div { padding: 24px 14px 16px; border: 1px solid var(--hair); border-top: 48px solid var(--swatch); }
.brand-palette strong, .brand-palette code { display: block; font-size: .85rem; }
.brand-palette code { margin-top: 6px; font-family: var(--mono); }
.brand-editorial { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: center; gap: 32px; margin-top: 48px; }
.brand-editorial img { width: 100%; height: auto; }
.not-found { max-width: 760px; padding-block: 90px 120px; }
.not-found h1 { font-size: clamp(3rem,8vw,5rem); }
.not-found p { color: var(--ink-2); margin-bottom: 30px; }
@media(max-width:900px) {
  .top .wrap { flex-wrap: wrap; gap: 12px; padding-block: 12px; }
  .top .header-cta { margin-left: auto; font-size: .86rem; padding-inline: 12px; }
  .js .menu-toggle { display: inline-flex; }
  .top .nav { order: 4; flex-basis: 100%; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0; margin: 0; border-top: 1px solid var(--ink); padding-top: 8px; }
  .top .nav a { min-height: 44px; display: flex; align-items: center; padding: 10px 8px; }
  .js .top .nav:not([data-open]) { display: none; }
  .faq-list, .closing { margin-left: 0; }
  .guide-body { grid-template-columns: minmax(0,1fr); }
  .guide-aside { max-width: 35em; }
}
@media(max-width:620px) {
  .resource-grid, .brand-editorial { grid-template-columns: minmax(0,1fr); }
  .brand-palette { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .guide h1 { font-stretch: 115%; }
  .top .brand { font-size: 1.35rem; gap: 7px; }
  .top .brand svg { width: 23px; }
  .menu-toggle { padding-inline: 9px; }
  .menu-toggle svg { display: none; }
  .faq-list summary { font-size: 1.05rem; }
  .faq-list details > div { padding-right: 0; }
}