:root {
  --bg: #eeefe9;
  --surface: #fdfdf8;
  --sunk: #e3e5dd;
  --fg: #151515;
  --muted: #5c5d56;
  --line: #cfd1c8;
  --edge: #151515;
  --shadow: #151515;
  --ink: #151515;
  --paper: #fdfdf8;
  --blue: #1d4aff;
  --red: #f54e00;
  --yellow: #f9bd2b;
  --yellow-edge: #151515;
  --accent: #1d4aff;
  --link: #b83a00;
  --band-ink: #151515;
  --band-pick: #f9bd2b;
  --on-pick: #151515;
  --warn-bg: #fbebc8;
  --warn-fg: #6a4500;
  --code-bg: #151515;
  --code-fg: #eeefe9;
  --slack-red: #e01e5a;
  --slack-blue: #36c5f0;
  --slack-green: #2eb67d;
  --slack-yellow: #ecb22e;
  --f-body: "IBM Plex Sans", "Helvetica Neue", Arial, system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151515;
    --surface: #212121;
    --sunk: #2c2c2c;
    --fg: #eeefe9;
    --muted: #a9aaa2;
    --line: #47473f;
    --edge: #eeefe9;
    --shadow: #000000;
    --yellow-edge: #8a6200;
    --accent: #8aa2ff;
    --link: #ff9a66;
    --band-ink: #0b0b0b;
    --band-pick: #171c3d;
    --on-pick: #eeefe9;
    --warn-bg: #3a2c10;
    --warn-fg: #f5d69a;
    --code-bg: #0b0b0b;
    color-scheme: dark;
  }
  html mark { background: none; color: var(--yellow); }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 20px; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 var(--f-body); overflow-wrap: anywhere; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
h1, h2, h3 { line-height: 1.08; text-wrap: balance; font-weight: 700; }
h1 { font-size: clamp(2.5rem, 6.2vw, 4.5rem); letter-spacing: -0.04em; line-height: 1; }
h2 { font-size: clamp(1.8rem, 3.8vw, 2.7rem); letter-spacing: -0.03em; }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
a { color: var(--link); font-weight: 600; text-underline-offset: 3px; }
code { font-family: var(--f-mono); font-size: 0.88em; background: var(--sunk); padding: 0.05em 0.35em; border-radius: 4px; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
img, svg { display: block; }
mark { color: inherit; background: linear-gradient(transparent 56%, var(--yellow) 56% 92%, transparent 92%); padding-inline: 0.06em; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 10; background: var(--surface); padding: 8px 12px; border-radius: 8px; border: 2px solid var(--edge); }
.skip:focus { top: 12px; }
.wrap { max-width: 1160px; margin-inline: auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.eyebrow { font: 600 0.74rem/1.2 var(--f-mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.lead { font-size: clamp(1.1rem, 1.7vw, 1.3rem); line-height: 1.45; max-width: 34ch; text-wrap: pretty; }
.muted { color: var(--muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 9px 16px; border: 2px solid var(--edge); border-radius: 10px; background: var(--surface); color: var(--fg); font-weight: 700; font-size: 0.95rem; line-height: 1.2; text-decoration: none; box-shadow: 0 4px 0 var(--shadow); transition: transform 0.1s, box-shadow 0.1s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 0 var(--shadow); }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--shadow); }
.btn svg { width: 16px; height: 16px; }
.btn-yellow { background: var(--yellow); color: var(--ink); border-color: var(--yellow-edge); box-shadow: 0 4px 0 var(--yellow-edge); }
.btn-yellow:hover { box-shadow: 0 6px 0 var(--yellow-edge); }
.btn-yellow:active { box-shadow: 0 1px 0 var(--yellow-edge); }
.btn-ghost { background: transparent; color: var(--code-fg); border-color: color-mix(in srgb, var(--code-fg) 55%, transparent); box-shadow: none; }
.btn-ghost:hover, .btn-ghost:active { box-shadow: none; border-color: var(--code-fg); }
.btn.big { padding: 13px 22px; font-size: 1.05rem; border-radius: 12px; }
.btn.small { padding: 6px 12px; font-size: 0.88rem; box-shadow: 0 3px 0 var(--yellow-edge); }
.link-arrow, .back, .more { display: inline-flex; align-items: center; gap: 6px; }
.link-arrow svg, .back svg, .more svg { width: 16px; height: 16px; transition: transform 0.15s; }
.link-arrow:hover svg, .more:hover svg { transform: translateX(3px); }
.back { font-size: 0.92rem; }
.back svg { transform: rotate(180deg); }
.back:hover svg { transform: rotate(180deg) translateX(3px); }
.tag { display: inline-block; font: 600 0.68rem/1 var(--f-mono); letter-spacing: 0.04em; text-transform: uppercase; padding: 5px 7px; border-radius: 6px; background: var(--sunk); color: var(--muted); white-space: nowrap; }
.tag.on { background: color-mix(in srgb, var(--yellow) 30%, var(--surface)); color: var(--fg); }

.icon { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--yellow); color: var(--ink); border: 1.5px solid var(--ink); flex: none; }
.icon svg { width: 22px; height: 22px; }
.icon.mini { width: 30px; height: 30px; border-radius: 8px; }
.icon.mini svg { width: 17px; height: 17px; }
.icon.big { width: 60px; height: 60px; border-radius: 15px; border-width: 2px; box-shadow: 0 4px 0 var(--shadow); }
.icon.big svg { width: 32px; height: 32px; }
.icon.brand { background: var(--paper); }

.top { padding-block: 16px; }
.top-in { display: flex; align-items: center; gap: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 700 1.4rem/1 var(--f-body); letter-spacing: -0.02em; color: var(--fg); text-decoration: none; }
.mark svg { width: 36px; height: 36px; }
.byline, .foot-note { display: inline-flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--muted); }
.byline { padding-left: 14px; border-left: 1.5px solid var(--line); white-space: nowrap; }
.posthog { width: auto; height: 17px; }
.top nav { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.top nav a:not(.btn) { color: var(--fg); text-decoration: none; font-size: 0.98rem; }
.top nav a:not(.btn):hover, .top nav a[aria-current] { text-decoration: underline; text-decoration-thickness: 2px; text-decoration-color: var(--yellow); }

.stage { --tone: var(--yellow); position: relative; display: grid; grid-template-rows: minmax(0, 1fr); place-items: end center; padding: 20px 20px 0; overflow: hidden; border: 2px solid var(--ink); border-radius: 22px; box-shadow: 0 7px 0 var(--shadow); background-color: var(--tone); background-image: radial-gradient(rgb(21 21 21 / 0.16) 1.4px, transparent 1.6px); background-size: 18px 18px; }
.stage img { width: 100%; height: 100%; min-height: 0; object-fit: contain; object-position: center bottom; }
.tone-blue { --tone: #1d4aff; background-image: radial-gradient(rgb(255 255 255 / 0.2) 1.4px, transparent 1.6px); }
.tone-red { --tone: #f54e00; }
.tone-yellow { --tone: #f9bd2b; }
.tone-sky { --tone: #b8d3ff; }
.tone-peach { --tone: #ffc9ae; }
.tone-lilac { --tone: #dccdff; }
.tone-mint { --tone: #bfe9d2; }
.tone-cream { --tone: #fff3cf; }

.hero { padding-block: 36px 84px; }
.hero-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 48px; align-items: center; }
.hero-text { display: grid; gap: 24px; justify-items: start; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.crew { grid-template-columns: 1fr 1.2fr 1fr; grid-template-rows: auto; align-items: end; gap: 0; padding: 40px 48px 18px; min-height: 440px; overflow: visible; }
.mate { display: grid; justify-items: center; gap: 12px; }
.mate img { width: 142%; max-width: none; height: auto; }
.mate:nth-child(2) { z-index: 1; }
.mate:nth-child(1) { transform: translateY(-64px) rotate(-4deg); }
.mate:nth-child(3) { transform: translateY(-64px) rotate(4deg); }
.bubble { position: relative; background: var(--paper); color: var(--ink); border: 2px solid var(--ink); border-radius: 12px; padding: 6px 10px; font: 500 0.8rem/1.25 var(--f-mono); text-align: center; white-space: nowrap; box-shadow: 0 3px 0 var(--ink); animation: bob 4s ease-in-out infinite; }
.bubble::after { content: ""; position: absolute; left: 50%; bottom: -8px; width: 12px; height: 12px; background: var(--paper); border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: translateX(-50%) rotate(45deg); }
.mate:nth-child(2) .bubble { animation-delay: -1.3s; }
.mate:nth-child(3) .bubble { animation-delay: -2.6s; }
@keyframes bob { 50% { transform: translateY(-5px); } }
.hero-small { padding-block: 20px 56px; }
.hero-small .hero-in { grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); }
.hero-small .stage { height: 300px; }
.hero-small .lead { max-width: 44ch; }

.band { padding-block: 84px; }
.band-tight { padding-block: 0 56px; }
.band-head { display: grid; gap: 12px; margin-bottom: 36px; }
.band-ink { background: var(--band-ink); color: #eeefe9; }
.band-ink .eyebrow { color: var(--yellow); }
.band-ink p { color: #c9cac2; }
.band-pick { background: var(--band-pick); color: var(--on-pick); padding-block: 84px; }
.band-pick.band-tight { padding-block: 56px 72px; }
.band-pick .eyebrow { color: inherit; opacity: 0.75; }
.band-pick .lead { max-width: none; }
.band-tight h2 { margin-bottom: 20px; font-size: clamp(1.4rem, 2.6vw, 1.8rem); }
.band-tight .band-head h2 { margin-bottom: 0; }

.problems { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.problem { display: grid; gap: 10px; align-content: start; }
.problem .stage { height: 230px; margin-bottom: 10px; box-shadow: 0 7px 0 #000; }
.problem:nth-child(1) .stage { transform: rotate(-1.5deg); }
.problem:nth-child(3) .stage { transform: rotate(1.5deg); }
.problem h3 { font-size: 1.3rem; }

.split { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr); gap: 64px; align-items: center; }
.split .stage { height: 380px; transform: rotate(-1.5deg); }
.split-text { display: grid; gap: 18px; }
.ticks { list-style: none; padding: 0; display: grid; gap: 14px; font-size: 1.15rem; line-height: 1.4; max-width: 34ch; }
.ticks li { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 12px; }
.ticks li::before { content: ""; width: 26px; height: 26px; margin-top: 2px; border-radius: 8px; border: 2px solid var(--ink); background: var(--yellow) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23151515' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 16px no-repeat; }

.boxes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.box { position: relative; display: grid; gap: 14px; align-content: start; padding: 18px; background: var(--surface); color: var(--fg); border: 2px solid color-mix(in srgb, var(--edge) 28%, transparent); border-radius: 22px; transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s; }
.box:has(input[name="where"]:checked) { border-color: var(--edge); box-shadow: 0 8px 0 var(--shadow); transform: translateY(-4px); }
.box:has(input[name="where"]:focus-visible) { outline: 3px solid var(--accent); outline-offset: 4px; }
.box-head { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.box-head::after { content: ""; position: absolute; inset: 0; border-radius: 22px; }
.box-name { font: 700 1.45rem/1.1 var(--f-body); letter-spacing: -0.02em; }
.pick { width: 26px; height: 26px; flex: none; border-radius: 50%; border: 2px solid var(--fg); background: var(--surface); display: grid; place-items: center; }
.pick::after { content: ""; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); transform: scale(0); transition: transform 0.18s cubic-bezier(0.3, 1.6, 0.5, 1); }
.box:has(input[name="where"]:checked) .pick::after { transform: scale(1); }
.sticker { margin-left: auto; font: 600 0.68rem/1 var(--f-mono); letter-spacing: 0.05em; text-transform: uppercase; padding: 6px 8px; border-radius: 6px; background: var(--sunk); color: var(--muted); transform: rotate(2deg); white-space: nowrap; }
.box:has(input[name="where"]:checked) .sticker { background: var(--yellow); color: var(--ink); }
.box .stage { height: 200px; border-radius: 14px; box-shadow: none; transition: filter 0.18s; }
.box:not(:has(input[name="where"]:checked)) .stage { filter: saturate(0.45); }
.box-fact { font-size: 1.02rem; }
.rows { list-style: none; padding: 0; border-top: 1.5px solid var(--line); }
.row { display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 10px 2px; border-bottom: 1.5px solid var(--line); min-height: 62px; }
.row:last-child { border-bottom: 0; padding-bottom: 0; }
.row-text { display: grid; line-height: 1.3; }
.row-text b { font-size: 1rem; }
.row-text span { font-size: 0.86rem; color: var(--muted); }
.row.ghost .icon, .row.ghost b { opacity: 0.45; }
.row.ghost .icon { background: transparent; border-style: dashed; }
.row .switch, .row .tag { position: relative; z-index: 1; }
.switch { appearance: none; -webkit-appearance: none; margin: 0; width: 48px; height: 28px; flex: none; border-radius: 999px; border: 2px solid var(--fg); background: var(--sunk); cursor: pointer; transition: background 0.18s; }
.switch::after { content: ""; display: block; width: 18px; height: 18px; margin: 3px; border-radius: 50%; background: var(--fg); transition: transform 0.18s cubic-bezier(0.3, 1.4, 0.5, 1), background 0.18s; }
.switch:checked { background: var(--accent); }
.switch:checked::after { transform: translateX(20px); background: var(--paper); }

.prompt { position: relative; background: var(--code-bg); color: var(--code-fg); border: 2px solid var(--ink); border-radius: 22px; box-shadow: 0 8px 0 var(--shadow); }
.chooser .prompt { margin-top: 30px; }
.chooser .prompt::before { content: ""; position: absolute; top: -12px; left: 25%; width: 20px; height: 20px; background: var(--code-bg); border-left: 2px solid var(--ink); border-top: 2px solid var(--ink); transform: translateX(-50%) rotate(45deg); transition: left 0.3s cubic-bezier(0.3, 1.3, 0.5, 1); }
.chooser:has(#where-hub:checked) .prompt::before { left: 75%; }
.prompt-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; padding: 18px 22px 0; }
.prompt-head h3 { font: 600 0.78rem/1.2 var(--f-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--yellow); }
.mini-steps { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 18px; counter-reset: step; font-size: 0.88rem; }
.mini-steps li { counter-increment: step; display: flex; align-items: center; gap: 7px; }
.mini-steps li::before { content: counter(step); width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; background: var(--code-fg); color: var(--code-bg); font: 600 0.72rem var(--f-mono); }
.mini-steps a { color: inherit; }
.prompt pre { margin: 0; padding: 16px 22px; font: 0.9rem/1.7 var(--f-mono); white-space: pre-wrap; word-break: break-word; }
.tok { color: var(--yellow); font-weight: 500; }
.fresh { border-radius: 4px; animation: flash 1.2s ease-out; }
@keyframes flash { from { background: rgb(249 189 43 / 0.4); } to { background: transparent; } }
.prompt-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 4px 22px 22px; }
.prompt .btn-yellow { border-color: var(--yellow); box-shadow: 0 4px 0 #8a6200; }
.prompt .btn-yellow:hover { box-shadow: 0 6px 0 #8a6200; }
.prompt .btn-yellow:active { box-shadow: 0 1px 0 #8a6200; }
.after { margin-top: 26px; }
.band-pick a:not(.btn) { color: inherit; }

.picker { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 400px); gap: 30px; align-items: start; }
.pack-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); gap: 18px; }
.pack-card { position: relative; display: grid; gap: 10px; align-content: start; padding: 12px 12px 14px; background: var(--surface); border: 2px solid var(--line); border-radius: 20px; transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s; }
.pack-card:hover { border-color: var(--muted); }
.pack-card:has(input:checked) { border-color: var(--edge); box-shadow: 0 7px 0 var(--shadow); transform: translateY(-3px); }
.pack-card:has(input:focus-visible) { outline: 3px solid var(--accent); outline-offset: 3px; }
.pack-card .stage { height: 150px; padding: 12px 12px 0; border-radius: 12px; border-width: 1.5px; box-shadow: none; }
.pack-main { display: flex; align-items: center; gap: 10px; min-height: 28px; }
label.pack-main { cursor: pointer; }
label.pack-main::after { content: ""; position: absolute; inset: 0; border-radius: 20px; }
.pack-name { font: 700 1.15rem/1.15 var(--f-body); letter-spacing: -0.01em; }
.check { margin-left: auto; width: 26px; height: 26px; flex: none; border-radius: 8px; border: 2px solid var(--fg); background: var(--surface); display: grid; place-items: center; transition: background 0.15s; }
.check::after { content: ""; width: 12px; height: 7px; margin-top: -3px; border-left: 3px solid var(--paper); border-bottom: 3px solid var(--paper); transform: rotate(-45deg) scale(0); transition: transform 0.18s cubic-bezier(0.3, 1.6, 0.5, 1); }
.pack-card:has(input:checked) .check { background: var(--blue); border-color: var(--blue); }
.pack-card:has(input:checked) .check::after { transform: rotate(-45deg) scale(1); }
.pack-line { font-size: 0.93rem; line-height: 1.4; color: var(--muted); }
.pack-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: auto; padding-top: 4px; font-size: 0.88rem; }
.more { margin-left: auto; position: relative; z-index: 1; }
.tray { position: sticky; top: 18px; display: grid; gap: 12px; }
.tray-empty { display: grid; justify-items: center; gap: 12px; padding: 30px 24px; text-align: center; border: 2px dashed var(--line); border-radius: 22px; }
.tray-empty img { width: 150px; height: auto; }
.tray-count { font: 600 0.78rem/1.2 var(--f-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.tray .prompt pre { max-height: 46vh; overflow-y: auto; font-size: 0.82rem; }
[hidden] { display: none !important; }

.pack-title { display: flex; align-items: center; gap: 18px; font-size: clamp(2.3rem, 5vw, 3.6rem); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.flow { list-style: none; padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.flow li { display: flex; align-items: center; gap: 12px; font: 600 0.95rem/1.3 var(--f-body); }
.flow li + li::before { content: ""; width: 22px; height: 12px; flex: none; background: var(--fg); clip-path: polygon(0 38%, 62% 38%, 62% 0, 100% 50%, 62% 100%, 62% 62%, 0 62%); }
.flow-step { background: var(--surface); border: 2px solid var(--edge); border-radius: 10px; padding: 9px 13px; box-shadow: 0 3px 0 var(--shadow); }
.flow li:last-child .flow-step { background: var(--yellow); color: var(--ink); border-color: var(--yellow-edge); box-shadow: 0 3px 0 var(--yellow-edge); }
.wfs { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 330px), 1fr)); gap: 14px; }
.wf { display: grid; gap: 8px; align-content: start; padding: 16px 18px; background: var(--surface); border: 1.5px solid var(--line); border-radius: 16px; font-size: 0.97rem; }
.wf-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; }
.wf-head h3 { margin-right: auto; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 14px; align-items: start; }
.fact { display: grid; gap: 8px; padding: 16px 18px; background: var(--surface); border: 1.5px solid var(--line); border-radius: 16px; font-size: 0.97rem; }
.fact.warn { background: var(--warn-bg); color: var(--warn-fg); border-color: transparent; }
.fact.warn .eyebrow { color: inherit; }
details > summary { cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
.settings summary { display: grid; gap: 8px; }
.settings summary span:last-child::after, .sub > summary::after { content: ""; display: inline-block; width: 7px; height: 7px; margin-left: 10px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateY(-3px) rotate(45deg); transition: transform 0.15s; }
.settings[open] summary span:last-child::after, .sub[open] > summary::after { transform: translateY(1px) rotate(-135deg); }
.settings ul { list-style: none; padding: 8px 0 0; display: grid; gap: 12px; font-size: 0.92rem; }
.settings li { display: grid; gap: 2px; justify-items: start; }
.sub > summary { font-weight: 600; font-size: 0.9rem; color: var(--warn-fg); }
.sub p { margin-top: 6px; font-size: 0.92rem; }
.note { font-size: 1.1rem; padding: 18px 20px; border: 2px dashed var(--line); border-radius: 16px; }

.foot { border-top: 1.5px solid var(--line); padding-block: 36px 60px; font-size: 0.92rem; color: var(--muted); }
.foot-in { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 22px 40px; align-items: start; }
.foot-brand { display: grid; gap: 8px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.foot nav a { color: var(--fg); }
.foot-note { grid-column: 1 / -1; flex-wrap: wrap; }
.jump { display: none; }

@media (max-width: 900px) {
  .hero { padding-block: 16px 56px; }
  .hero-in, .hero-small .hero-in, .split { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .hero-small .stage { height: 220px; }
  .band, .band-pick { padding-block: 56px; }
  .band-tight { padding-block: 0 44px; }
  .problems { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .problem .stage { height: 200px; }
  .split .stage { height: 280px; }
  .boxes { grid-template-columns: minmax(0, 1fr); }
  .chooser .prompt::before, .chooser:has(#where-hub:checked) .prompt::before { left: 50%; }
  .picker { grid-template-columns: minmax(0, 1fr); }
  .tray { position: static; }
  .tray .prompt pre { max-height: none; }
  .jump:not([hidden]) { display: inline-flex; position: fixed; left: 50%; bottom: max(16px, env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); z-index: 5; }
  .jump:hover, .jump:active { transform: translateX(-50%); }
  .foot-in { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .byline, .top nav a[href^="https://github.com"] { display: none; }
  .top nav { gap: 16px; }
  .crew { min-height: 0; padding: 26px 22px 10px; }
  .mate:nth-child(1) { transform: translateY(-30px) rotate(-4deg); }
  .mate:nth-child(3) { transform: translateY(-30px) rotate(4deg); }
  .bubble { font-size: 0.58rem; padding: 3px 5px; border-radius: 8px; border-width: 1.5px; box-shadow: 0 2px 0 var(--ink); }
  .bubble::after { width: 8px; height: 8px; bottom: -5px; border-width: 1.5px; }
  .mate { gap: 8px; }
  .box { padding: 14px; }
  .box .stage { height: 150px; }
  .box-name { font-size: 1.25rem; }
  .prompt-head, .prompt pre { padding-inline: 16px; }
  .prompt-foot { padding: 4px 16px 18px; }
  .prompt pre { font-size: 0.82rem; }
  .pack-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .pack-card { padding: 9px 9px 12px; border-radius: 16px; }
  .pack-card .stage { height: 104px; }
  .pack-name { font-size: 0.92rem; letter-spacing: -0.02em; }
  .jump { white-space: nowrap; }
  .pack-card .icon { display: none; }
  .pack-line { font-size: 0.85rem; }
  .pack-title { gap: 12px; }
  .icon.big { width: 46px; height: 46px; border-radius: 12px; }
  .icon.big svg { width: 25px; height: 25px; }
  .flow { flex-direction: column; align-items: flex-start; }
  .flow li { flex-direction: column; align-items: flex-start; }
  .flow li + li::before { transform: rotate(90deg); margin-left: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}