/*
 * Opsfleet Agent Bootcamp. Design system taken from the Opsfleet slide decks:
 * light theme = "AI Assessment Deep Dive" content slides (F8F9FD canvas, white cards with D9E4F5 borders,
 * 3626A7 titles with a vertical cyan-to-indigo bar, cyan numbered circles, Cabin + Open Sans);
 * hero = its title slide (diagonal 3626A7 -> 0EB8E5 gradient, 9FE8FA eyebrow, partner badges top right);
 * dark theme = the navy "Intro to GenAI and Amazon Bedrock" deck (2A1D63 canvas, 6FD3F0 accents).
 */
:root {
  --bg: #F8F9FD;
  --surface: #FFFFFF;
  --ink: #030213;
  --heading: #1C173B;
  --title: #3626A7;
  --muted: #717182;
  --border: #D9E4F5;
  --tint: #F4F3FB;
  --tint-cyan: #EAF8FD;
  --cyan: #0EB9E6;
  --cyan-text: #06708C;
  --on-cyan: #1C173B;
  --indigo: #3626A7;
  --sky: #9FE8FA;
  --link: #3626A7;
  --gradient: linear-gradient(135deg, #3626A7 0%, #226FC6 55%, #0EB8E5 100%);
  --bar: linear-gradient(180deg, #0EB9E6, #226FC6 50%, #3526A7);
  --rule: linear-gradient(90deg, #0EB9E6, #226FC6 50%, #3526A7);
  --code-bg: #1C173B;
  --code-head: #262052;
  --code-text: #E9E8F7;
  --shadow: 0 2px 8px rgba(54, 38, 167, .08);
  --shadow-hover: 0 6px 20px rgba(54, 38, 167, .14);
  --radius: 12px;
  --font: "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display: "Cabin", "Open Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --easy: #17734B;
  --easy-bg: #E4F6EE;
  --medium: #8A5A06;
  --medium-bg: #FBF1DD;
  --advanced: #3626A7;
  --advanced-bg: #E8E5FA;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1A1240;
    --surface: #2A1D63;
    --ink: #F5F6FA;
    --heading: #FFFFFF;
    --title: #6FD3F0;
    --muted: #9AA4C0;
    --border: #3F3488;
    --tint: #241A57;
    --tint-cyan: #173E63;
    --cyan-text: #6FD3F0;
    --link: #6FD3F0;
    --code-bg: #120C30;
    --code-head: #1E164A;
    --shadow: 0 2px 10px rgba(0, 0, 0, .3);
    --shadow-hover: 0 6px 22px rgba(0, 0, 0, .4);
    --easy: #7FE0B0;
    --easy-bg: #17402F;
    --medium: #F3C978;
    --medium-bg: #43330F;
    --advanced: #C9C2FF;
    --advanced-bg: #3A2C86;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (max-width: 720px) { html { scroll-padding-top: 16px; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 var(--font);
  overflow-x: hidden;
}
h1, h2, h3 { font-family: var(--display); color: var(--heading); line-height: 1.2; margin: 0 0 .6em; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.35rem, 3vw, 1.7rem); color: var(--title); }
h3 { font-size: 1.12rem; }
p { margin: 0 0 1em; }
a { color: var(--link); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
code { font-family: var(--mono); font-variant-ligatures: none; font-size: .86em; background: var(--tint); color: var(--title); padding: .1em .35em; border-radius: 6px; overflow-wrap: break-word; }
ul, ol { padding-left: 1.3em; }
li { margin: .3em 0; }
img { max-width: 100%; }

.wrap { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 16px; }
.wrap.narrow { max-width: 1040px; }
@media (min-width: 720px) { .wrap { padding: 0 40px; } }
.card p, .card li, .step p, .step li, .callout p, .section-lede, .lede, .challenge-goal, .details-body p, .details-body li { max-width: 75ch; }
.block { margin: 56px 0; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 10; background: var(--surface); padding: 8px 12px; border-radius: 8px; }

/* Deck motifs: vertical title bar, eyebrow label, gradient rule */
.bar-title, .section-head h2, .arch-section > h2, .setup > h2 { position: relative; padding-left: 18px; }
.bar-title::before, .section-head h2::before, .arch-section > h2::before, .setup > h2::before {
  content: ""; position: absolute; left: 0; top: .08em; bottom: .08em; width: 6px; border-radius: 3px; background: var(--bar);
}
.eyebrow-label { display: inline-block; font: 700 .78rem var(--display); text-transform: uppercase; letter-spacing: .1em; color: var(--cyan-text); margin: 0 0 6px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(10px); }
.site-header::after { content: ""; display: block; height: 3px; background: var(--rule); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { display: block; height: 28px; width: auto; }
.brand-tag { font: 700 .78rem var(--display); letter-spacing: .04em; color: var(--title); background: var(--tint); padding: 4px 10px; border-radius: 999px; white-space: nowrap; }
.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a { color: var(--heading); text-decoration: none; font: 600 .95rem var(--display); padding: 10px 16px; min-height: 44px; display: inline-flex; align-items: center; border-radius: 999px; white-space: nowrap; }
.main-nav a:hover { background: var(--tint); }
.main-nav a[aria-current="page"] { background: var(--indigo); color: #fff; }

/* Hero: the title-slide treatment */
.hero, .task-hero { background: var(--gradient); color: #fff; padding: 40px 0 56px; }
.hero h1, .task-hero h1 { color: #fff; }
.hero .hl { color: var(--sky); }
.hero .lede, .task-hero .lede { font-size: 1.12rem; max-width: 760px; color: rgba(255, 255, 255, .92); }
.hero code, .task-hero code { background: rgba(255, 255, 255, .16); color: #fff; }
.hero .bar-title::before, .task-hero .bar-title::before { background: linear-gradient(180deg, var(--sky), #fff); }
.eyebrow { font: 700 .8rem var(--display); text-transform: uppercase; letter-spacing: .12em; color: var(--sky); margin-bottom: .9em; }
.hero-lockup { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 44px; }
.lockup-logos { display: flex; align-items: center; gap: 16px; }
.lockup-logos img { height: 30px; width: auto; }
.lockup-logos img[alt="AWS"] { height: 34px; }
.lockup-x { color: var(--sky); font: 600 1.4rem var(--display); }
.badge-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.partner-badge { display: block; height: auto; }
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; font-size: .88rem; margin-bottom: 18px; color: rgba(255, 255, 255, .8); }
.crumbs a { color: #fff; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

/* Buttons and pills */
.btn { display: inline-block; background: var(--gradient); color: #fff; font: 700 1rem var(--display); text-decoration: none; padding: 12px 24px; border-radius: 999px; border: 0; box-shadow: var(--shadow); }
.btn:hover { box-shadow: var(--shadow-hover); }
.btn-light { background: #fff; color: var(--indigo); }
.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255, 255, 255, .75); box-shadow: none; }
.pill { display: inline-block; font: 700 .76rem var(--display); letter-spacing: .03em; padding: 4px 11px; border-radius: 999px; white-space: nowrap; }
.pill-time { background: var(--tint); color: var(--title); }
.pill-easy { background: var(--easy-bg); color: var(--easy); }
.pill-medium { background: var(--medium-bg); color: var(--medium); }
.pill-advanced { background: var(--advanced-bg); color: var(--advanced); }
.meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
.task-hero .pill-time { background: rgba(255, 255, 255, .18); color: #fff; }
.badge { display: inline-block; font: 700 .74rem var(--display); letter-spacing: .08em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; }
.badge-you { background: var(--cyan); color: var(--on-cyan); }
.badge-platform { background: var(--indigo); color: #fff; }

.complete-btn { display: inline-flex; align-items: center; gap: 10px; font: 700 .95rem var(--display); background: #fff; color: var(--indigo); border: 0; border-radius: 999px; padding: 10px 18px; cursor: pointer; }
.complete-btn .tick { width: 18px; height: 18px; border-radius: 50%; border: 2px solid currentColor; display: inline-block; position: relative; }
.complete-btn[aria-pressed="true"] { background: #1C173B; color: #fff; }
.complete-btn[aria-pressed="true"] .tick { background: var(--cyan); border-color: var(--cyan); }
.complete-btn[aria-pressed="true"] .tick::after { content: ""; position: absolute; left: 4px; top: 1px; width: 5px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }

/* Cards: white, D9E4F5 hairline, soft indigo shadow */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); margin: 0 0 40px; min-width: 0; }
@media (min-width: 720px) { .card { padding: 32px 40px; } }
.task-body { padding-top: 48px; padding-bottom: 72px; }
.task-hero .wrap, .task-body { max-width: 960px; }
.section-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.section-head h2 { margin: 0; order: 2; }
.section-head .badge { order: 1; }
.story { position: relative; overflow: hidden; padding-left: 34px; }
.story::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px; background: var(--bar); }
.story h2 { color: var(--heading); }
.story-head { margin-bottom: 10px; }
.tag-crisis { display: block; font: 700 .78rem var(--display); text-transform: uppercase; letter-spacing: .1em; color: var(--cyan-text); margin-bottom: 6px; }
.platform { background: var(--tint); border-color: transparent; box-shadow: none; }
.check { background: var(--tint-cyan); border-color: transparent; box-shadow: none; }
.check h2 { color: var(--heading); }
.check h2::before { content: "✓"; display: inline-grid; place-items: center; width: 30px; height: 30px; margin-right: 10px; border-radius: 50%; background: var(--cyan); color: var(--on-cyan); font-size: .9rem; vertical-align: 3px; }
.note { font-size: .92rem; color: var(--muted); }
main ul { list-style: none; padding-left: 0; }
main ul > li { position: relative; padding-left: 24px; }
main ul > li::before { content: ""; position: absolute; left: 4px; top: .62em; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.callout { border-radius: var(--radius); padding: 20px 24px 20px 30px; margin: 0 0 40px; background: var(--tint); position: relative; overflow: hidden; }
.callout::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--bar); }
.callout strong { display: block; font: 700 .8rem var(--display); text-transform: uppercase; letter-spacing: .1em; color: var(--cyan-text); margin-bottom: 6px; }
.callout p:last-child { margin-bottom: 0; }

/* Steps: cyan numbered circles, as on the deck's phase cards */
.steps-section { margin: 8px 0 40px; }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
.step { counter-increment: step; position: relative; padding: 0 0 8px 56px; margin: 0 0 36px; min-width: 0; }
.step::before { content: counter(step); position: absolute; left: 0; top: -4px; width: 38px; height: 38px; border-radius: 50%; background: var(--cyan); color: var(--on-cyan); font: 700 1rem var(--display); display: grid; place-items: center; }
.step::after { content: ""; position: absolute; left: 18px; top: 40px; bottom: -14px; width: 2px; background: var(--border); }
.step:last-child::after { display: none; }
.step h3 { padding-top: 4px; }

/* Code */
.code { margin: 14px 0 18px; border-radius: 10px; overflow: hidden; background: var(--code-bg); max-width: 100%; box-shadow: var(--shadow); }
.code::before { content: ""; display: block; height: 3px; background: var(--rule); }
.code-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; background: var(--code-head); padding: 8px 12px 8px 16px; font: 600 .78rem var(--mono); color: #AFAED0; }
.code-head span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.copy { font: 700 .78rem var(--display); background: rgba(255, 255, 255, .08); color: #fff; border: 1px solid rgba(255, 255, 255, .18); border-radius: 999px; padding: 6px 14px; min-height: 32px; cursor: pointer; flex-shrink: 0; }
.copy:hover { background: rgba(14, 185, 230, .3); }
.copy.copied { background: var(--cyan); border-color: var(--cyan); color: var(--on-cyan); }
.code pre { margin: 0; padding: 16px; overflow-x: auto; }
.code code { background: none; color: var(--code-text); padding: 0; font-size: .85rem; line-height: 1.6; white-space: pre; overflow-wrap: normal; display: block; }
.code-tag { font: 600 .72rem var(--display); color: #AFAED0; text-transform: uppercase; letter-spacing: .08em; }
.code-figure { margin: 0; }
.code-figure figcaption, .arch-card figcaption { font-size: .88rem; color: var(--muted); margin-top: 8px; max-width: 75ch; }

/* Details */
details.hood { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin: 0 0 40px; box-shadow: var(--shadow); }

/* Challenges: goal, progressive hints, collapsed solution */
.challenge { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; margin: 12px 0 8px; box-shadow: var(--shadow); }
.challenge .eyebrow-label { margin-bottom: 8px; }
.challenge-goal p:last-child { margin-bottom: 0; }
.reveal { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; margin-top: 18px; }
.reveal > details, .challenge, .details-body { min-width: 0; }
details.hint, details.solution, details.answer { border-radius: 10px; border: 1px solid var(--border); background: var(--tint); }
details.hint summary, details.solution summary, details.answer summary { cursor: pointer; list-style: none; padding: 10px 16px; font: 700 .92rem var(--display); color: var(--title); display: flex; align-items: center; gap: 10px; }
details.hint summary::-webkit-details-marker, details.solution summary::-webkit-details-marker, details.answer summary::-webkit-details-marker { display: none; }
details.hint summary::before, details.answer summary::before { content: "?"; display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--cyan); color: var(--on-cyan); font-size: .8rem; }
details.solution { background: var(--surface); border-style: dashed; }
details.solution summary::before { content: "</>"; display: inline-grid; place-items: center; min-width: 30px; height: 22px; padding: 0 4px; border-radius: 11px; background: var(--indigo); color: #fff; font: 700 .7rem var(--mono); }
details.hint[open] summary, details.solution[open] summary, details.answer[open] summary { border-bottom: 1px solid var(--border); }
details.hint .details-body, details.solution .details-body, details.answer .details-body { padding: 12px 16px 4px; }
details.answer { margin-top: 12px; }
details.hood summary { cursor: pointer; padding: 18px 24px; font: 700 1.05rem var(--display); color: var(--title); list-style: none; display: flex; align-items: center; gap: 12px; }
details.hood summary::-webkit-details-marker { display: none; }
details.hood summary::before { content: "+"; display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--tint); color: var(--title); font-weight: 800; flex-shrink: 0; }
details.hood[open] summary::before { content: "−"; }
.details-body { padding: 0 24px 20px; }

/* Tables: tinted header row like the deck's comparison tables */
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--title); font: 700 .8rem var(--display); text-transform: uppercase; letter-spacing: .06em; background: var(--tint); }
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); }
table.mini { margin: 10px 0 16px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: block; overflow-x: auto; }

/* Pager */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 36px; }
.pager a { display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; text-decoration: none; color: var(--heading); font: 700 1rem var(--display); box-shadow: var(--shadow); min-width: 0; }
.pager a span { display: block; font-size: .74rem; color: var(--cyan-text); text-transform: uppercase; letter-spacing: .1em; }
.pager-next { text-align: right; }
.pager a:hover { box-shadow: var(--shadow-hover); border-color: var(--cyan); }
@media (max-width: 560px) { .pager { grid-template-columns: 1fr; } .pager-next { text-align: left; } }

/* Overview pages */
.phase-pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 20px; margin: -32px 0 32px; position: relative; }
.phase-card, .task-card { display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s; min-width: 0; }
.phase-card:hover, .task-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.phase-card h2 { margin-top: 12px; color: var(--heading); }
.link-arrow { color: var(--link); font: 700 .95rem var(--display); }
.link-arrow::after { content: " →"; }
.task-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); gap: 18px; margin: 28px 0; }
.task-card { position: relative; display: flex; flex-direction: column; }
.task-card h3 { margin: 14px 0 4px; }
.task-card p { font-size: .92rem; margin-bottom: .8em; }
.task-card p { overflow-wrap: break-word; }
.task-card .crisis { margin-top: auto; font: 600 .84rem var(--display); color: var(--cyan-text); }
.card-top { display: flex; justify-content: space-between; align-items: center; }
.task-num { width: 38px; height: 38px; border-radius: 50%; background: var(--cyan); color: var(--on-cyan); font: 700 1rem var(--display); display: grid; place-items: center; }
.done-mark { font: 700 .74rem var(--display); color: var(--cyan-text); text-transform: uppercase; letter-spacing: .08em; }
.task-card.is-done .done-mark::before { content: "✓ Done"; }
.task-card.is-done { border-color: var(--cyan); }
.card-meta { display: flex; gap: 6px; flex-wrap: wrap; }
.progress { margin: 32px 0 20px; }
.progress-bar { height: 8px; background: var(--tint); border-radius: 999px; overflow: hidden; }
.progress-bar span { display: block; height: 100%; width: 0; background: var(--rule); transition: width .3s; }
.progress-label { font: 600 .88rem var(--display); color: var(--muted); margin: 8px 0 0; }
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 24px; align-items: start; margin: 12px 0 24px; }
.split > div { min-width: 0; }
.setup, .arch-section { margin: 64px 0; }
.section-lede { max-width: 760px; color: var(--muted); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 18px; margin: 40px 0; }
.fact { background: var(--surface); border: 1px solid var(--border); border-top: 4px solid var(--cyan); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.fact:nth-child(2) { border-top-color: #226FC6; }
.fact:nth-child(3) { border-top-color: var(--indigo); }
.next-phase { margin: 12px 0 56px; }

/* Partnerships */
.partnerships { margin: 56px 0 72px; }
.partner-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 18px; margin-top: 20px; }
.partner-card { display: flex; gap: 18px; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; box-shadow: var(--shadow); }
.partner-card img { flex-shrink: 0; width: 88px; height: auto; }
.partner-card h3 { margin-bottom: 4px; }
.partner-card p { margin: 0; color: var(--muted); font-size: .92rem; }

/* Architecture diagram */
.arch-card { padding: 20px; margin: 0; }
.arch-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.arch-card figcaption { font-size: .86rem; color: var(--muted); margin-top: 10px; }
@media (max-width: 760px) { .arch { min-width: 900px; } }
.arch .policy { fill: var(--tint); stroke: var(--indigo); stroke-width: 1.2; }
.arch .opt-group { fill: none; stroke: var(--muted); stroke-dasharray: 5 5; }
.arch .node-opt rect { stroke-dasharray: 5 4; stroke: var(--cyan); }
.arch .n-small { fill: var(--heading); font: 700 13.5px var(--display); }
.arch .edges-dashed path { fill: none; stroke: var(--cyan-text); stroke-width: 1.6; stroke-dasharray: 7 5; }
.arch .edges-telemetry path { fill: none; stroke: var(--muted); stroke-width: 1.6; stroke-dasharray: 1.5 4; stroke-linecap: round; }
.arch .arrowhead-muted { fill: var(--muted); }
.arch .e-label .e-muted { fill: var(--muted); }
.arch { width: 100%; height: auto; display: block; }
.arch .zone { fill: var(--tint); stroke: var(--border); stroke-dasharray: 6 5; }
.arch .zone-opsfleet { fill: var(--tint-cyan); }
.arch .zone-label { fill: var(--muted); font: 700 13px var(--display); letter-spacing: .06em; }
.arch .node rect { fill: var(--surface); stroke: var(--border); stroke-width: 1.5; }
.arch .node-accent rect { stroke: var(--cyan); stroke-width: 2; }
.arch .node-you rect { stroke: var(--indigo); stroke-width: 2; }
.arch .n-title { fill: var(--heading); font: 700 16px var(--display); }
.arch .n-sub { fill: var(--muted); font: 500 12.5px var(--font); }
.arch .edges path { fill: none; stroke: var(--indigo); stroke-width: 2; }
.arch .arrowhead { fill: var(--indigo); }
.arch .e-label text { fill: var(--cyan-text); font: 700 12px var(--display); }
@media (prefers-color-scheme: dark) {
  .arch .edges path { stroke: var(--cyan); }
  .arch .arrowhead { fill: var(--cyan); }
}

/* Footer: light, with the deck's gradient rule */
.site-footer { background: var(--surface); color: var(--muted); padding: 0 0 36px; margin-top: 24px; }
.site-footer::before { content: ""; display: block; height: 4px; background: var(--rule); margin-bottom: 36px; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 28px; }
.site-footer strong { color: var(--heading); font: 700 1.1rem var(--display); }
.site-footer p { margin: 6px 0 0; font-size: .92rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 14px; }
.site-footer a { color: var(--title); text-decoration: none; font: 600 .92rem var(--display); padding: 6px 0; display: inline-block; }
.site-footer a:hover { color: var(--cyan-text); }
.footer-partners .badge-row { margin-top: 4px; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

@media (max-width: 560px) {
  .step { padding-left: 0; }
  .step::before { position: static; margin-bottom: 10px; }
  .step::after { display: none; }
  .challenge { padding: 16px; }
  .card { padding: 20px; }
  .story { padding-left: 26px; }
  details.hint .details-body, details.solution .details-body { padding: 10px 12px 2px; }
}

/* Accessibility and small screens */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }
details > summary { min-height: 44px; }
[data-page="home"] .footer-partners .badge-row { display: none; }
.stage-table td:first-child a { font-weight: 700; }
.stage-table code { white-space: nowrap; }
@media (max-width: 720px) {
  .site-header { position: static; }
  .brand-tag { display: none; }
  .header-inner { flex-wrap: nowrap; gap: 8px; }
  .main-nav { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .main-nav::-webkit-scrollbar { display: none; }
  .main-nav a { padding: 10px 12px; }
}
@media (max-width: 560px) {
  .hero-lockup .badge-row { display: none; }
}