/* VeraGen Learn: the design system, ported from the approved prototype (ai-hub prototypes/learn-site/template.html,
   approved 2026-10-13). Change it here, not per page. Rules that are decisions, not taste (tests/design.test.mjs holds them):
   - one face, Outfit, vendored (no font CDN: the CSP is 'self'); a monospace only for certificate IDs and codes;
   - colour means level: Fundamentals blue #2A7FEA, Professional green #0E9F6E, Advanced rust #D97706;
   - boxes inside white panels are solid, never gradients: modules light blue #F4F8FF / #7FA9E6, AI sources light
     green #F3FBF6 / #7CC49A, each with dark text in its hue; the open module is white with the brand-blue border. */
@font-face { font-family: "Outfit"; src: url(/fonts/Outfit-Variable.woff2) format("woff2"); font-weight: 300 700; font-display: swap }
@font-face { font-family: "VG Mono"; src: url(/fonts/VGCertMono-Medium.woff2) format("woff2"); font-weight: 500; font-display: swap }

:root {
  --bg: #FFFFFF;
  --bg-2: #F4F6FA;          /* alternate band, side panels */
  --line: #E1E6EF;
  --ink: #0F1B2D;
  --muted: #5B6576;
  --blue: #2A7FEA;          /* the brand's blue: links and the one primary action */
  --blue-ink: #155FC0;
  --blue-soft: #E8F1FE;
  --hero: #071226;          /* the hero and the footer, in both themes */
  --hero-ink: #F2F6FC;
  --grad-a: #4199FE; --grad-b: #46D5F2; --grad-c: #A78BFA;
  --ok: #157A4A; --ok-soft: #E2F4EA;
  --box-blue: #E8F1FE; --box-blue-line: #7FA9E6; --box-green: #E9F7EF; --box-green-line: #7CC49A;
  --lb-blue: #F4F8FF; --lb-green: #F3FBF6;
  --lb-blue-ink: #133B7C; --lb-blue-sub: #4D6B9C; --lb-green-ink: #0D5A37; --lb-green-sub: #4C7A61;   /* text on the lightboxes */
  --lb-glow: 0 1px 2px rgba(15,27,45,.04), 0 4px 14px rgba(42,127,234,.06); --lb-glow-green: 0 1px 2px rgba(15,27,45,.04), 0 4px 14px rgba(21,122,74,.06);   /* soft boxes: modules (blue), AI sources (green) */
  --pro-soft: #DDF5EA; --pro-ink: #065F46; --adv-soft: #FDEBD7; --adv-ink: #92400E;   /* level colours: Professional green, Advanced rust */
  --soon: #8A5A00; --soon-soft: #FFF3D6;
  --sans: "Outfit", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "VG Mono", ui-monospace, Menlo, Consolas, monospace;
  --wrap: 1240px;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0B1220; --bg-2: #101A2C; --line: #22304A; --ink: #E8EDF5; --muted: #A2ADBF;
  --blue: #5AA2FF; --blue-ink: #8CC0FF; --blue-soft: #13284A; --ok: #6FD3A2; --ok-soft: #10291D; --box-blue: #13284A; --box-blue-line: #3D6AAE; --box-green: #10291D; --box-green-line: #3A8A5E; --lb-blue: #111F38; --lb-green: #0F211B; --lb-glow: 0 1px 2px rgba(0,0,0,.3); --lb-glow-green: 0 1px 2px rgba(0,0,0,.3); --lb-blue-ink: #B5D3FF; --lb-blue-sub: #8EABD6; --lb-green-ink: #A3E6C3; --lb-green-sub: #80B79A; --pro-soft: #0F2A20; --pro-ink: #6FD3A2; --adv-soft: #2E1C0B; --adv-ink: #F4B266; --soon: #F2C66B; --soon-soft: #2D2410;
  color-scheme: dark } }
:root[data-theme="dark"] {
  --bg: #0B1220; --bg-2: #101A2C; --line: #22304A; --ink: #E8EDF5; --muted: #A2ADBF;
  --blue: #5AA2FF; --blue-ink: #8CC0FF; --blue-soft: #13284A; --ok: #6FD3A2; --ok-soft: #10291D; --box-blue: #13284A; --box-blue-line: #3D6AAE; --box-green: #10291D; --box-green-line: #3A8A5E; --lb-blue: #111F38; --lb-green: #0F211B; --lb-glow: 0 1px 2px rgba(0,0,0,.3); --lb-glow-green: 0 1px 2px rgba(0,0,0,.3); --lb-blue-ink: #B5D3FF; --lb-blue-sub: #8EABD6; --lb-green-ink: #A3E6C3; --lb-green-sub: #80B79A; --pro-soft: #0F2A20; --pro-ink: #6FD3A2; --adv-soft: #2E1C0B; --adv-ink: #F4B266; --soon: #F2C66B; --soon-soft: #2D2410;
  color-scheme: dark }

* { box-sizing: border-box }
[hidden] { display: none !important }
body { background: var(--bg); color: var(--ink); font: 400 16px/1.6 var(--sans) }
a { color: var(--blue-ink); text-underline-offset: 3px }
a:hover { color: var(--blue) }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-radius: 4px }
h1, h2, h3 { margin: 0; line-height: 1.15; text-wrap: balance; font-weight: 600; letter-spacing: -.01em }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem) }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem) }
h3 { font-size: 1.15rem }
p { margin: 0 }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 24px }
@media (max-width: 560px) { .wrap { padding-inline: 16px } }
.muted { color: var(--muted) }
.mono { font-family: var(--mono); letter-spacing: .02em }
.kicker { font: 600 .78rem/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--blue-ink) }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 .95rem/1 var(--sans); padding: 12px 18px; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); text-decoration: none; cursor: pointer }
.btn:hover { border-color: var(--blue); color: var(--ink) }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff }
.btn.primary:hover { background: var(--blue-ink); border-color: var(--blue-ink); color: #fff }
.badge { display: inline-flex; align-items: center; gap: 6px; font: 600 .74rem/1 var(--sans); padding: 5px 9px; border-radius: 999px; white-space: nowrap }
.badge.ok { background: var(--ok-soft); color: var(--ok) }
.badge.soon { background: var(--soon-soft); color: var(--soon) }
.badge.lvl { background: var(--blue-soft); color: var(--blue-ink) }
.badge.lv-professional { background: var(--pro-soft); color: var(--pro-ink) }
.badge.lv-advanced { background: var(--adv-soft); color: var(--adv-ink) }

/* Top bar */
.top { background: var(--bg); border-bottom: 1px solid var(--line); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20 }
.top .wrap { display: flex; align-items: center; gap: 18px; min-height: 58px; flex-wrap: wrap; padding-block: 6px }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink) }
.brand svg { height: 24px; width: auto }
.brand .wm { font: 500 .95rem/1 var(--sans); letter-spacing: .3em }
.brand .wm b { color: #4199FE; font-weight: 500 }
.brand .sep { width: 1px; height: 22px; background: var(--line) }
.brand .lr { font: 600 1.15rem/1 var(--sans) }
.nav { display: flex; gap: 2px; flex-wrap: wrap }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; font-size: .95rem; padding: 8px 12px; border-radius: 6px; border-bottom: 2px solid transparent }
.nav a:hover { background: var(--bg-2); color: var(--ink) }
.nav a[aria-current="page"] { color: var(--blue-ink); background: var(--blue-soft) }
.top .right { margin-left: auto; display: flex; gap: 8px; align-items: center }
.top .right .btn { padding: 9px 14px; font-size: .9rem }
@media (max-width: 900px) { .nav { order: 3; width: 100%; overflow-x: auto; flex-wrap: nowrap } .nav a { white-space: nowrap } }

main { min-height: 60vh }
section { padding-block: 56px }
.band { background: var(--bg-2) }
.sec-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 24px }
.sec-head p { color: var(--muted); max-width: 64ch; margin-top: 8px }

/* Hero */
.hero { position: relative; color: var(--hero-ink); background: var(--hero) center/cover no-repeat; background-image: linear-gradient(100deg, rgba(7,18,38,.97) 0%, rgba(7,18,38,.86) 46%, rgba(7,18,38,.35) 100%), url(/img/hero.jpg); padding-block: 72px 64px }
.hero h1 { background: linear-gradient(90deg, var(--grad-a), var(--grad-b) 55%, var(--grad-c)); -webkit-background-clip: text; background-clip: text; color: transparent }
.hero p { margin-top: 18px; font-size: 1.15rem; color: #C9D4E6; max-width: 56ch }
.search { margin-top: 28px; display: flex; max-width: 680px; border-radius: 8px; overflow: hidden; background: #fff; box-shadow: 0 10px 30px rgba(0,0,0,.35) }
.search input { flex: 1; min-width: 0; border: 0; font: 400 1.05rem/1 var(--sans); padding: 17px 18px; color: #0F1B2D; background: #fff }
.search input::placeholder { color: #6B7586 }
.search button { border: 0; background: var(--blue); color: #fff; font: 600 1rem/1 var(--sans); padding: 0 22px; cursor: pointer; display: flex; align-items: center; gap: 8px }
.hero .quick { margin-top: 16px; display: flex; gap: 8px; flex-wrap: wrap; font-size: .9rem; color: #A9B6CC }
.hero .quick a { color: #DDE7F7 }

.nw { white-space: nowrap }
@media (max-width: 560px) { .nw { white-space: normal } }

/* Documentation welcome: its own AI search, over the documentation only */
.dwel h1 { font-size: clamp(1.9rem, 3.4vw, 2.5rem) }
.dwel .intro { color: var(--muted); font-size: 1.08rem; margin-top: 8px; max-width: 64ch }
.dask { margin-top: 22px; display: flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--bg); box-shadow: 0 6px 20px rgba(15,27,45,.07) }
.dask:focus-within { border-color: var(--blue) }
.dask input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); font: 400 1.05rem/1 var(--sans); padding: 16px 16px }
.dask button { border: 0; background: var(--blue); color: #fff; font: 600 .98rem/1 var(--sans); padding: 0 20px; cursor: pointer; display: flex; gap: 8px; align-items: center }
.dask button[disabled] { opacity: .6; cursor: default }
.scope { font-size: .84rem; color: var(--muted); margin-top: 8px }
.dout { margin-top: 22px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--bg) }
.dout .dh { display: flex; align-items: center; gap: 8px; padding: 12px 18px; background: var(--blue-soft); color: var(--blue-ink); font-weight: 600; font-size: .92rem }
.dout .db { padding: 18px 20px; line-height: 1.7 }
.dout .db p + p { margin-top: 10px }
.dout sup a { text-decoration: none; font-weight: 700; font-size: .75rem; padding: 0 2px }
.caret { display: inline-block; width: 8px; height: 1.1em; background: var(--blue); vertical-align: text-bottom; margin-left: 2px; animation: blink 1s steps(2) infinite }
@keyframes blink { 50% { opacity: 0 } }
.dsrc { border-top: 1px solid var(--line); padding: 14px 20px; display: grid; gap: 8px }
.dsrc a { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; text-decoration: none; color: var(--ink); padding: 10px 14px; border-radius: 14px; border: 1px solid var(--box-green-line); background: var(--lb-green) }
@media (prefers-reduced-motion: no-preference) { .dsrc a { transition: border-color .15s } }
.dsrc a:hover { border-color: var(--ok); color: var(--ink) }
.dsrc a b { color: var(--lb-green-ink) }
.dsrc a small { color: var(--lb-green-sub) !important }
.dsrc a:hover b { color: var(--ok) }
.dsrc .n { width: 24px; height: 24px; border-radius: 50%; background: var(--bg); color: var(--lb-green-ink); display: grid; place-items: center; font-weight: 700; font-size: .8rem }
.dsrc small { color: var(--muted) }
.qs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 30px }
@media (max-width: 900px) { .qs { grid-template-columns: 1fr } }

/* Once someone asks, the welcome becomes a conversation: answers stack upward, the newest at the bottom, the box sticks to the foot of the screen. */
.dwel.chat .welcome-only { display: none }
.dpanel { position: relative; overflow: hidden; border-radius: 14px; padding: 30px 30px 26px; color: #F2F6FC; background: linear-gradient(115deg, #071226 0%, #0B2A5C 58%, #12407F 100%) }
.dpanel::after { content: ""; position: absolute; right: -140px; top: -180px; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(70,213,242,.26), rgba(65,153,254,0) 65%); pointer-events: none }
.dpanel > * { position: relative; z-index: 1 }
.dpanel h1 { color: #fff }
.dpanel .kicker { color: #8CC0FF }
.dpanel .intro { color: #C9D4E6 }
.dpanel .scope { color: #A9B9D4 }
.dpanel .restart { color: #8CC0FF }
.dpanel .chip { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.22); color: #EAF1FB }
.dpanel .chip:hover { background: rgba(255,255,255,.16) }
.dpanel .dask { border-color: transparent; background: #fff; box-shadow: 0 10px 28px rgba(0,0,0,.35) }
.dpanel .dask input { color: #0F1B2D }
.dpanel .dask input::placeholder { color: #6B7586 }
.dwel.chat .dpanel { display: flex; flex-direction: column; height: calc(100vh - 92px); min-height: 440px; padding: 0 }
.dwel.chat .chathead { padding: 16px 22px; border-bottom: 1px solid rgba(255,255,255,.12) }
.dwel.chat .chathead b { color: #fff }
.dwel.chat .chathead .muted { color: #A9B9D4 }
.dwel.chat .dlog { background: var(--bg-2); color: var(--ink); padding: 20px 22px 12px }
.dwel.chat .dbar { padding: 16px 22px calc(12px + env(safe-area-inset-bottom, 0px)); border-top: 0; background: transparent }
.dlog { display: flex; flex-direction: column; gap: 18px; padding: 16px 4px 8px 0; flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain }
.dlog > :first-child { margin-top: auto }
.dwel:not(.chat) .dlog { display: none }
.qbub { align-self: flex-end; justify-self: end; max-width: 80%; background: var(--blue); color: #fff; padding: 10px 16px; border-radius: 16px 16px 4px 16px; font-weight: 500 }
.dlog .dout { margin-top: 0 }
.dbar { flex: none }
.dwel:not(.chat) .dbar { border-top: 0; padding: 0; margin-top: 24px }
.dbar .dask { margin-top: 0 }
.dbar .row2 { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: center }
.dwel:not(.chat) .dbar .restart { display: none }
.restart { background: none; border: 0; color: var(--blue-ink); font: 600 .86rem/1 var(--sans); cursor: pointer; padding: 6px 0 }
.chathead { display: none }
.dwel.chat .chathead { display: flex; flex: none; justify-content: space-between; align-items: baseline; gap: 12px; border-bottom: 1px solid var(--line); padding-bottom: 12px }
.chathead b { font-size: 1.1rem }

/* Ask: the conversation on the left, what it searches on the right */
.askgrid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start }
.askside { display: grid; gap: 12px; position: sticky; top: 84px }
.askside h2 { font-size: 1.15rem; margin: 4px 0 4px }
@media (max-width: 960px) { .askgrid { grid-template-columns: 1fr } .askside { position: static } }

/* Accounts: sign in, create an account, the code, account settings */
.authband { background: var(--bg-2); padding-block: 40px 64px }
.auth { max-width: 480px; margin: 0 auto; background: var(--bg); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: 0 10px 30px rgba(15,27,45,.06) }
.auth .ah { padding: 22px 26px; color: #F2F6FC; background: linear-gradient(115deg, #071226 0%, #0B2A5C 58%, #12407F 100%) }
.auth .ah h1 { font-size: 1.55rem; color: #fff }
.auth .ah p { color: #C9D4E6; margin-top: 6px; font-size: .95rem }
.auth .ab { padding: 22px 26px 26px; display: grid; gap: 12px }
.auth label { font-weight: 600; font-size: .92rem }
.auth .row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px }
@media (max-width: 480px) { .auth .row { grid-template-columns: 1fr } }
.vgbtn { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; padding: 13px 16px; border-radius: 8px; border: 1px solid #0B2A5C; background: #0B2A5C; color: #fff; font: 600 .98rem/1 var(--sans); cursor: pointer; text-decoration: none }
.vgbtn:hover { background: #12407F; color: #fff }
.vgbtn svg { height: 18px; width: auto }
.or { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .85rem }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--line) }
.note { font-size: .85rem; color: var(--muted); line-height: 1.5 }
.auth .foot { border-top: 1px solid var(--line); padding: 14px 26px; font-size: .92rem; background: var(--bg-2) }
.codebox { font: 600 1.6rem/1 var(--mono); letter-spacing: .5em; text-align: center; padding: 14px }
.err { color: #C2453A; font-size: .9rem }
.settings { display: grid; gap: 18px; max-width: 760px }
.settings .panel h2 { font-size: 1.2rem; margin-bottom: 4px }
.settings .panel .sub { color: var(--muted); font-size: .92rem; margin-bottom: 14px }
.fgrid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px }
@media (max-width: 560px) { .fgrid2 { grid-template-columns: 1fr } }
.fl { display: grid; gap: 6px } .fl label { font-weight: 600; font-size: .9rem } .fl small { color: var(--muted) }
.sw { display: flex; gap: 12px; align-items: flex-start; padding: 10px 0; border-top: 1px solid var(--line) }
.sw:first-of-type { border-top: 0 }
.sw input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--blue) }
.sw b { display: block } .sw small { color: var(--muted) }
.kv { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 8px 14px; font-size: .95rem }
.kv dt { color: var(--muted) } .kv dd { margin: 0 }
.danger { color: #B42318; border-color: #F1B5AE }
.danger:hover { border-color: #B42318; color: #B42318 }
.mechip { display: inline-flex; align-items: center; gap: 8px }
.mechip i { width: 26px; height: 26px; border-radius: 50%; background: linear-gradient(135deg, #4199FE, #12387A); color: #fff; font-style: normal; font-weight: 600; font-size: .78rem; display: grid; place-items: center }
.saved { color: var(--ok); font-size: .9rem; font-weight: 600 }

/* Cards */
.grid { display: grid; gap: 18px }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)) }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)) }
@media (max-width: 980px) { .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)) } .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)) } }
@media (max-width: 600px) { .g3, .g4 { grid-template-columns: 1fr } }
.card { display: flex; flex-direction: column; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; text-decoration: none; color: var(--ink); min-width: 0 }
a.card:hover { border-color: var(--blue); color: var(--ink); box-shadow: 0 6px 18px rgba(15,27,45,.08) }
.card img { display: block; width: 100%; aspect-ratio: 16 / 8; object-fit: cover; max-width: 100% }
.card .cb { padding: 18px 20px 20px; display: grid; gap: 8px }
.card .cb p { color: var(--muted); font-size: .95rem }
.card .more { margin-top: 4px; color: var(--blue-ink); font-weight: 600; font-size: .92rem }
.tile { display: flex; gap: 14px; align-items: flex-start; padding: 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); text-decoration: none; color: var(--ink); min-width: 0 }
a.tile:hover { border-color: var(--blue); color: var(--ink) }
.glyph { flex: none; width: 40px; height: 40px; border-radius: 9px; display: grid; place-items: center; font: 700 1rem/1 var(--sans); color: #fff }
.tile b { display: block; font-weight: 600 }
.tile small { color: var(--muted); font-size: .88rem; line-height: 1.45; display: block; margin-top: 2px }

/* Featured certification */
.feature { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--bg) }
.feature .fx { padding: 32px; display: grid; gap: 14px; align-content: center }
.feature .fx h2 { font-size: clamp(1.6rem, 3vw, 2.2rem) }
.feature .fx .acts { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px }
.feature .side { background: linear-gradient(135deg, #0B1F44, #12387A); display: grid; place-items: center; padding: 28px }
@media (max-width: 860px) { .feature { grid-template-columns: 1fr } }
.offer { display: flex; gap: 12px; padding: 12px 14px; background: var(--blue-soft); border-radius: 8px; font-size: .95rem }
.offer b { color: var(--ink) }

/* The sample certificate: an image of the approved design (the AI Hub's own certificate renderer), not a drawing of it */
.cert-img { display: block; width: 100%; max-width: 440px; height: auto; aspect-ratio: 1210 / 935; border-radius: 2px; box-shadow: 0 14px 34px rgba(0,0,0,.4) }

/* Benefits */
.benefits { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 44px; align-items: center }
.benefits img { width: 100%; border-radius: 12px; aspect-ratio: 4 / 3; object-fit: cover; max-width: 100% }
.blist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 28px; margin-top: 22px }
.blist b { display: block; font-weight: 600; margin-bottom: 4px }
.blist p { color: var(--muted); font-size: .95rem }
@media (max-width: 900px) { .benefits { grid-template-columns: 1fr } }
@media (max-width: 560px) { .blist { grid-template-columns: 1fr } }

/* Steps: a real sequence */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: s }
.step { counter-increment: s; padding: 18px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg) }
.step::before { content: counter(s); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--blue-soft); color: var(--blue-ink); font-weight: 700; margin-bottom: 10px }
.step b { display: block; margin-bottom: 4px }
.step p { color: var(--muted); font-size: .93rem }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)) } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr } }

/* Lists of certifications */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px }
.chip { font: 500 .9rem/1 var(--sans); padding: 9px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); cursor: pointer }
.chip[aria-pressed="true"] { background: var(--blue); border-color: var(--blue); color: #fff }
.cred-card .cb { gap: 6px }
.cred-card .tags { display: flex; gap: 6px; flex-wrap: wrap }
.cred-card .ti { font-weight: 600; font-size: 1.08rem }
.cred-card .code { font-family: var(--mono); font-size: .78rem; color: var(--muted) }

/* Certification page */
.crumbs { font-size: .88rem; color: var(--muted); padding-top: 22px }
.chero { background: linear-gradient(115deg, #071226 0%, #0B2A5C 58%, #12407F 100%); color: #F2F6FC; position: relative; overflow: hidden }
.chero::after { content: ""; position: absolute; right: -120px; top: -160px; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(70,213,242,.28), rgba(65,153,254,0) 65%) }
.chero .wrap { position: relative; z-index: 1 }
.chero .crumbs, .chero .crumbs a { color: #A9B9D4 }
.chero .chead { border-bottom: 0; padding-bottom: 40px }
.chero h1 { color: #fff }
.chero .sub { color: #DCE6F7 }
.chero .chead .lede { color: #D5DFEE }
.chero .chead .sub { color: #fff }
.chero .mono { color: #A9B9D4 !important }
.chero .badge.lvl { background: rgba(255,255,255,.14); color: #fff }
.chero .badge.ok { background: #1F9D61; color: #fff }
.chero .badge.soon { background: #F2C66B; color: #3A2A00 }
.cbody { background: var(--bg-2) }
.panel { background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 22px 24px; margin-bottom: 18px }
.panel > .h2s:first-child { margin-top: 0 }
.crumbs a { color: var(--muted) }
.chead { padding-block: 16px 30px; border-bottom: 1px solid var(--line) }
.chead .tags { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px }
.chead h1 { font-size: clamp(2rem, 4vw, 2.8rem) }
.chead .sub { font-size: 1.25rem; color: var(--ink); margin-top: 8px; font-weight: 500 }
.chead .lede { color: var(--muted); margin-top: 10px; font-size: 1.08rem; max-width: 70ch }
.cgrid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 44px; padding-block: 32px 56px }
@media (max-width: 960px) { .cgrid { grid-template-columns: 1fr } }
.prose { max-width: 70ch }
.prose p + p { margin-top: 12px }
.h2s { margin: 36px 0 10px; font-size: 1.45rem }
.who { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 26px; padding: 0; list-style: none }
.who li { padding-left: 26px; position: relative }
.who li::before { content: ""; position: absolute; left: 0; top: .32em; width: 16px; height: 16px; border-radius: 50%; background: var(--blue-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.2 2.2 4.8-4.8' fill='none' stroke='%232A7FEA' stroke-width='1.8'/%3E%3C/svg%3E") center/16px no-repeat }
@media (max-width: 640px) { .who { grid-template-columns: 1fr } }
.mod { border: 1px solid var(--line); border-radius: 10px; margin-top: 10px; background: var(--bg) }
/* Modules: a soft blue box with a thin border of the same hue and rounded corners. Hover deepens the border. */
.mod { background: var(--lb-blue); border: 1px solid var(--box-blue-line); border-radius: 14px }
.mod summary { border-radius: 14px }
.mod ul li { border-top-color: var(--line) }
@media (prefers-reduced-motion: no-preference) { .mod { transition: border-color .15s } }
.mod:hover { border-color: var(--blue) }
.mod .mt { color: var(--lb-blue-ink) }
.mod .mn { color: var(--lb-blue-sub) }
.mod .no { color: var(--lb-blue-ink) }
.mod .obj { color: var(--lb-blue-sub) }
.mod li { color: var(--lb-blue-ink) }
.mod summary:hover .mt { color: var(--blue) }
.mod[open] { background: var(--bg); border-color: var(--blue) }
.mod[open] .no { background: var(--blue-soft) }
.mod[open] ul li { border-top-color: var(--line) }
.mod summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 14px 16px }
.mod summary::-webkit-details-marker { display: none }
.mod .no { width: 30px; height: 30px; border-radius: 50%; background: var(--bg); color: var(--blue-ink); display: grid; place-items: center; font-weight: 700; font-size: .9rem }
.mod .mt { font-weight: 600; color: var(--lb-blue-ink) }
.mod .mn { font-size: .85rem; color: var(--lb-blue-sub); white-space: nowrap }
.mod .mn::after { content: "  +"; color: var(--blue) }
.mod[open] .mn::after { content: "  −" }
.mod ul { margin: 0; padding: 0 16px 14px 62px; list-style: none }
.mod li { padding: 7px 0; border-top: 1px solid var(--line); font-size: .96rem }
.mod .obj { padding: 0 16px 10px 62px; color: var(--lb-blue-sub); font-size: .92rem }
@media (max-width: 560px) { .mod ul, .mod .obj { padding-left: 16px } }
.exam { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px }
.exam div { padding: 16px; border-radius: 10px; background: var(--blue-soft) }
.exam b { display: block; font-size: 1.7rem; font-weight: 700; color: var(--blue-ink); font-variant-numeric: tabular-nums }
.exam span { font-size: .86rem; color: var(--muted) }
@media (max-width: 700px) { .exam { grid-template-columns: repeat(2, minmax(0, 1fr)) } }
.facts { border: 1px solid var(--line); border-radius: 12px; background: var(--bg); align-self: start; overflow: hidden; box-shadow: 0 8px 24px rgba(15,27,45,.06) }
.facts .fh { background: linear-gradient(115deg, #0B2A5C, #2A7FEA); color: #fff; padding: 14px 20px; font-weight: 600 }
.facts dl { margin: 0; padding: 4px 20px }
.facts .f { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: .93rem }
.facts .f:last-child { border-bottom: 0 }
.facts dt { color: var(--muted) }
.facts dd { margin: 0; font-weight: 500 }
.facts .act { padding: 18px 20px; background: var(--blue-soft); display: grid; gap: 10px; border-top: 1px solid var(--line) }
.facts .act p { font-size: .86rem; color: var(--muted) }

.rel { display: block; border-radius: 12px; overflow: hidden; text-decoration: none; color: #fff; min-width: 0; box-shadow: 0 6px 18px rgba(15,27,45,.10) }
.rel:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(15,27,45,.18) }
.rel .rt { padding: 18px; min-height: 132px; display: grid; gap: 8px; align-content: start }
.rel .rg { width: 38px; height: 38px; border-radius: 9px; background: rgba(255,255,255,.2); display: grid; place-items: center; font-weight: 700 }
.rel .ti { font-weight: 600; font-size: 1.08rem }
.rel .tags { display: flex; gap: 6px; flex-wrap: wrap }
.rel .badge { background: rgba(255,255,255,.2); color: #fff }
@media (prefers-reduced-motion: no-preference) { .rel { transition: transform .15s, box-shadow .15s } }

/* Documentation reader */
.reader { display: grid; grid-template-columns: 270px minmax(0, 1fr) 220px; gap: 36px; padding-block: 18px 56px }
.reader.two { grid-template-columns: 270px minmax(0, 1fr) }
@media (max-width: 1100px) { .reader, .reader.two { grid-template-columns: 250px minmax(0, 1fr) } .toc { display: none } }
@media (max-width: 800px) { .reader, .reader.two { grid-template-columns: 1fr } .dwel.chat .dpanel { height: calc(100vh - 120px) } .dpanel { padding: 22px 18px } .dnav { max-height: none; position: static } }
.dnav { position: sticky; top: 76px; align-self: start; max-height: calc(100vh - 96px); overflow: auto; font-size: .92rem; padding-right: 6px }
.dtog { display: none; width: 100%; justify-content: space-between; margin-bottom: 8px }
@media (max-width: 800px) { .dtog { display: flex } .dnav:not(.open) > :not(.dtog) { display: none } }
.dnav input { width: 100%; font: 400 .92rem/1 var(--sans); padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); margin-bottom: 10px }
.dnav details { border-bottom: 1px solid var(--line) }
.dnav summary { cursor: pointer; padding: 9px 4px; font-weight: 600; list-style: none; display: flex; justify-content: space-between }
.dnav summary::-webkit-details-marker { display: none }
.dnav summary::after { content: "›"; color: var(--muted); transition: transform .15s }
.dnav details[open] summary::after { transform: rotate(90deg) }
.dnav a { display: block; padding: 5px 10px; color: var(--ink); text-decoration: none; border-left: 2px solid var(--line); margin-left: 4px }
.dnav a:hover { color: var(--blue-ink) }
.dnav a.on { border-left-color: var(--blue); color: var(--blue-ink); font-weight: 600; background: var(--blue-soft) }
.article { min-width: 0; max-width: 78ch }
.article .meta { color: var(--muted); font-size: .88rem; display: flex; gap: 14px; flex-wrap: wrap; margin: 10px 0 22px }
.article h1 { font-size: clamp(1.9rem, 3.4vw, 2.5rem) }
.article h2 { font-size: 1.45rem; margin: 34px 0 10px; scroll-margin-top: 80px }
.article p { margin: 10px 0 }
.article figure { margin: 20px 0 }
.article figure img { width: 100%; border: 1px solid var(--line); border-radius: 8px; max-width: 100% }
.article figcaption { font-size: .86rem; color: var(--muted); margin-top: 6px }
.article dl { margin: 12px 0 }
.article dt { font-weight: 600; margin-top: 12px }
.article dd { margin: 2px 0 0 0; padding-left: 14px; border-left: 2px solid var(--line); color: var(--ink) }
.article .lead { font-size: 1.12rem; color: var(--muted) }
.helpful { margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; color: var(--muted); font-size: .93rem }
.toc { position: sticky; top: 76px; align-self: start; font-size: .88rem }
.toc b { display: block; margin-bottom: 8px }
.toc a { display: block; color: var(--muted); text-decoration: none; padding: 4px 0 4px 10px; border-left: 2px solid var(--line) }
.toc a:hover { color: var(--blue-ink); border-left-color: var(--blue) }

/* Ask */
.ask-box { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px }
.ask-box input { flex: 1 1 320px; min-width: 0; font: 400 1.08rem/1.2 var(--sans); padding: 16px 18px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink) }
.sugg { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px }
.answer { margin-top: 28px; display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 30px }
@media (max-width: 900px) { .answer { grid-template-columns: 1fr } }
.ans { border: 1px solid var(--line); border-radius: 12px; padding: 22px 24px; background: var(--bg) }
.ans .k { display: inline-flex; gap: 8px; align-items: center; font-weight: 600; color: var(--blue-ink); margin-bottom: 10px }
.ans p + p { margin-top: 10px }
.ans .src { margin-top: 14px; font-size: .86rem; color: var(--muted) }
.hits { display: grid; gap: 10px }
.hit { display: block; padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; color: var(--ink); background: var(--bg) }
.hit:hover { border-color: var(--blue); color: var(--ink) }
.hit .ty { font-size: .76rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted) }
.hit .ti { font-weight: 600; margin: 4px 0 2px }

/* Verify, start, profile */
.verify { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: center }
@media (max-width: 800px) { .verify { grid-template-columns: 1fr } }
.vform { display: flex; gap: 10px; flex-wrap: wrap }
.vform input, .field { flex: 1 1 220px; min-width: 0; font: 500 1rem/1 var(--sans); padding: 13px 14px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); width: 100% }
.vform input { font-family: var(--mono); text-transform: uppercase }
.vres { margin-top: 14px; padding: 14px 16px; border-radius: 8px; border: 1px solid var(--line); font-size: .95rem; background: var(--bg) }
.vres.good { border-color: var(--ok) } .vres.bad { border-color: #C2453A }
.url { font-family: var(--mono); font-size: .88rem; color: var(--muted); word-break: break-all }
.prof { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 36px; padding-block: 26px 56px }
@media (max-width: 860px) { .prof { grid-template-columns: 1fr } }
.idcard { border: 1px solid var(--line); border-radius: 12px; padding: 22px; align-self: start; background: var(--bg) }
.avatar { width: 68px; height: 68px; border-radius: 50%; background: linear-gradient(135deg, var(--grad-a), #12387A); color: #fff; display: grid; place-items: center; font-weight: 600; font-size: 1.5rem }
.idcard h2 { font-size: 1.5rem; margin-top: 12px }
.idcard dl { margin: 14px 0 0 }
.idcard dl div { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-top: 1px solid var(--line); font-size: .92rem }
.idcard dt { color: var(--muted) } .idcard dd { margin: 0; font-weight: 500; text-align: right }
.held { display: grid; gap: 10px; margin-top: 14px }
.credrow { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg) }
.ring2 { width: 46px; height: 46px; border-radius: 50%; background: #002F64; border: 3px solid #A8843A; display: grid; place-items: center }
.ring2 svg { width: 50% }
.credrow .ti { font-weight: 600 }
.credrow small { color: var(--muted) }
@media (max-width: 560px) { .credrow { grid-template-columns: 40px minmax(0, 1fr) } .credrow .badge { grid-column: 2 } }

footer { background: #061A36; color: #AFC0DA; font-size: .92rem }
footer a { color: #AFC0DA; text-decoration: none }
footer a:hover { color: #fff }
.fgrid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(4, minmax(0, 1fr)); gap: 28px; padding-block: 48px 36px }
.fgrid h4 { margin: 4px 0 12px; color: #fff; font: 600 .76rem/1 var(--sans); letter-spacing: .12em; text-transform: uppercase }
.fgrid > div > a { display: block; padding: 4px 0 }
.flogo { display: inline-flex; align-items: center; gap: 12px; color: #fff }
.flogo svg { height: 30px; width: auto }
.fwm { font: 500 1.05rem/1 var(--sans); letter-spacing: .3em; color: #fff }
.fwm b { color: #4199FE; font-weight: 500 }
.fsep { width: 1px; height: 22px; background: rgba(255,255,255,.3) }
.flr { font: 600 1.15rem/1 var(--sans); color: #fff }
.fbrand p { margin-top: 14px; max-width: 34ch; line-height: 1.55 }
.social { display: flex; gap: 14px; margin-top: 16px }
.social a { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 8px; background: rgba(255,255,255,.08); color: #fff }
.social a:hover { background: rgba(255,255,255,.16) }
.fbot { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding-block: 18px; border-top: 1px solid rgba(255,255,255,.1); font-size: .85rem; color: #8C9DB8 }
.fbot .sp { flex: 1 }
.fbot a { color: #AFC0DA }
@media (max-width: 900px) { .fgrid { grid-template-columns: 1fr 1fr } .fbrand { grid-column: 1 / -1 } }


/* Skeleton pages (slice 1): a page head band and a plain body until each slice fills its page */
.phead { background: linear-gradient(115deg, #071226 0%, #0B2A5C 58%, #12407F 100%); color: #F2F6FC; position: relative; overflow: hidden; padding-block: 44px 40px }
.phead::after { content: ""; position: absolute; right: -120px; top: -160px; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(70,213,242,.28), rgba(65,153,254,0) 65%) }
.phead .wrap { position: relative; z-index: 1 }
.phead h1 { color: #fff; font-size: clamp(2rem, 4vw, 2.8rem) }
.phead p { color: #C9D4E6; margin-top: 10px; font-size: 1.08rem; max-width: 64ch }
.phead .kicker { color: #8CC0FF }
.lvl-fundamentals { background: #2A7FEA } .lvl-professional { background: #0E9F6E } .lvl-advanced { background: #D97706 }
.skip { position: absolute; left: -999px; top: 8px; z-index: 50; background: var(--bg); padding: 8px 12px; border-radius: 6px }
.skip:focus { left: 8px }
/* Below 16px, iOS Safari zooms on focus and never zooms back */
@media (max-width: 800px) { input, select, textarea { font-size: 16px !important } }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap }
.mt8 { margin-top: 8px }
/* App glyph colours (documentation tiles) */
.gc-hub { background: #2A7FEA } .gc-chimp { background: #0E9F6E } .gc-mercato { background: #D97706 } .gc-tellagent { background: #7C3AED }
.gc-thrive { background: #DB2777 } .gc-ascend { background: #0891B2 } .gc-chat { background: #4F46E5 } .gc-data { background: #475569 }
/* A short page keeps its footer at the bottom of the window */
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column }
body > main { flex: 1 0 auto }
/* Certifications (VH-919): the level colour is the card's top stripe and the Related card's ground */
.h1-page { font-size: clamp(2rem, 4vw, 2.8rem) }
.mt12 { margin-top: 12px; max-width: 70ch }
.code-sm { font-size: .82rem }
.stripe { border-top: 4px solid #2A7FEA } .stripe.lv-professional { border-top-color: #0E9F6E } .stripe.lv-advanced { border-top-color: #D97706 }
.rel { background: linear-gradient(135deg, #2A7FEA, #0B2A5C) } .rel.lv-professional { background: linear-gradient(135deg, #0E9F6E, #065F46) } .rel.lv-advanced { background: linear-gradient(135deg, #D97706, #92400E) }
.h2-sub { font-size: 1.35rem; margin-bottom: 14px } .h2-sub.sp { margin-top: 40px }
.vthumb { aspect-ratio: 16 / 8; background: linear-gradient(135deg, #0B1F44, #2A7FEA); display: grid; place-items: center }
/* Verify (VH-919) */
.verify-one { max-width: 720px }
.verify .vlede { margin-top: 10px; max-width: 56ch }
.verify .vnote { margin-top: 12px; font-size: .88rem }
.verify .vnote .url { white-space: nowrap }
.small { font-size: .88rem; margin-top: 12px }
.vres .vname { font-size: 1.35rem; font-weight: 600; margin: 6px 0 2px }
.ok-mark { color: var(--ok) }
/* Accounts (VH-920) */
.ab0 { display: grid; gap: 10px }
.check { display: flex; gap: 10px; font-weight: 400; font-size: .9rem; align-items: flex-start }
.check input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--blue) }
.auth.wide { max-width: 640px }
.restart { color: var(--blue-ink) }
/* Profiles (VH-921) */
.pad-page { padding-block: 24px 56px }
.top0 { padding-top: 0; margin-top: 0 }
.h1-me { font-size: 2rem; margin: 10px 0 6px }
.row-act { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 14px }
.addr { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: var(--bg) }
.addr span { padding: 12px 0 12px 12px; font-size: .9rem; white-space: nowrap }
.addr .field { border: 0; border-radius: 0; padding-left: 2px }
.ok-text { color: var(--ok) }
.credrow { text-decoration: none; color: var(--ink) }
.credrow:hover { border-color: var(--blue); color: var(--ink) }
.ring2 { background: #002F64 url(/favicon.svg) center/50% no-repeat }
.h1-card { font-size: 1.5rem; margin-top: 12px }
/* Taking a course (VH-922) */
.on-navy { color: #8CC0FF }
.course { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 24px; align-items: start; margin-top: 18px }
@media (max-width: 860px) { .course { grid-template-columns: 1fr } }
.cnav { display: grid; gap: 10px }
.cnav .mod ul { padding-left: 16px }
.linkish { background: none; border: 0; padding: 2px 0; font: inherit; color: var(--lb-blue-ink); cursor: pointer; text-align: left }
.linkish:hover { color: var(--blue) }
.linkish.strong { font-weight: 600 }
.cmain { min-height: 320px }
.lesson h2, .lesson h3, .lesson h4 { margin: 18px 0 8px }
.lesson ul, .lesson ol { margin: 8px 0; padding-left: 22px }
.qform { display: grid; gap: 16px }
.q { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin: 0 }
.q legend { font-weight: 600; padding: 0 6px }
.opt { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; cursor: pointer }
.opt input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--blue) }
.big { font-size: 1.4rem; font-weight: 600 }
/* Documentation (VH-923): the Hub's Help article markup, in Learn's look */
.help .eye { font: 600 .78rem/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--blue-ink); margin: 0 0 8px }
.help table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: .95rem; display: block; overflow-x: auto }
.help th, .help td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top }
.help th { background: var(--bg-2); font-weight: 600 }
.help .kv td:first-child { font-weight: 600; white-space: nowrap }
.help ul, .help ol { padding-left: 22px } .help li { margin: 4px 0 }
.help .steps li { margin: 8px 0 }
.help code, .help .inl { font-family: var(--mono); font-size: .88em; background: var(--bg-2); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px }
.help .tip { border-left: 3px solid var(--blue); background: var(--blue-soft); padding: 10px 14px; border-radius: 0 8px 8px 0; margin: 14px 0 }
.help .tip.warn { border-left-color: #D97706; background: var(--soon-soft) }
.help .watch { margin: 16px 0; display: grid; gap: 8px } .help .wh { font-weight: 600; margin: 0 }
.help .wcard { display: flex; gap: 12px; align-items: center; padding: 10px 14px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; color: var(--ink) }
.help .wcard:hover { border-color: var(--blue) }
.help .wplay { width: 34px; height: 34px; border-radius: 50%; background: var(--blue); color: #fff; display: grid; place-items: center; flex: none; font-size: .8rem }
.help .wtxt { display: grid } .help .wdur { color: var(--muted); font-size: .85rem }
.help .prompt { position: relative; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-2); padding: 12px 14px; margin: 14px 0 }
.help .prompt pre { white-space: pre-wrap; margin: 0; font: 400 .92rem/1.5 var(--sans) }
.help .prompt .copy { float: right; margin: 0 0 6px 10px; font: 600 .82rem/1 var(--sans); padding: 7px 10px; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); cursor: pointer }
.help .pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: .82em; font-weight: 600; background: var(--blue-soft); color: var(--blue-ink) }
.help img { max-width: 100%; border: 1px solid var(--line); border-radius: 8px }
.dnav .field { margin-bottom: 10px }
.dnav > a { display: block; padding: 6px 4px; font-weight: 600 }
.dnav.open > :not(.dtog) { display: block }
/* Ask (VH-924) */
.ask-sec { padding-block: 28px 56px }
.dpanel .chathead .muted { font-size: .86rem }
.dpanel .sugg { margin-top: 18px }
.dout .db p { white-space: pre-wrap }
.offer.mt12 { flex-wrap: wrap; align-items: center }
/* The signed-in menu in the header (session.js). */
.mewrap { position: relative }
.memenu { position: absolute; right: 0; top: calc(100% + 8px); min-width: 240px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 12px 30px rgba(15,27,45,.16); padding: 6px; z-index: 60; display: grid }
.memenu[hidden] { display: none }
.memenu .mewho { padding: 10px 12px 8px; border-bottom: 1px solid var(--line); margin-bottom: 4px; display: grid; gap: 2px }
.memenu .mewho small { color: var(--muted); overflow-wrap: anywhere }
.memenu a, .memenu button { display: block; text-align: left; padding: 10px 12px; border-radius: 6px; font: 500 .95rem/1.2 var(--sans); color: var(--ink); background: none; border: 0; cursor: pointer; text-decoration: none }
.memenu a:hover, .memenu button:hover { background: var(--bg-2) }

/* The certificate on its page (/verify/<ID>): the AI Hub's artwork, its faces, and what to do with it. */
@font-face { font-family: "VG Garamond"; font-weight: 400; font-style: normal; font-display: swap; src: url(/fonts/EBGaramond-Regular.woff2) format("woff2") }
@font-face { font-family: "VG Garamond"; font-weight: 500; font-style: normal; font-display: swap; src: url(/fonts/EBGaramond-Medium.woff2) format("woff2") }
@font-face { font-family: "VG Garamond"; font-weight: 600; font-style: normal; font-display: swap; src: url(/fonts/EBGaramond-SemiBold.woff2) format("woff2") }
@font-face { font-family: "VG Garamond"; font-weight: 400; font-style: italic; font-display: swap; src: url(/fonts/EBGaramond-Italic.woff2) format("woff2") }
@font-face { font-family: "VG Cert Mono"; font-weight: 500; font-style: normal; font-display: swap; src: url(/fonts/VGCertMono-Medium.woff2) format("woff2") }
.cert-wrap { padding-top: 0 }
#vcert { max-width: 1000px; margin: 0 auto }
.cert-doc { background: #FBF8F0; border-radius: 6px; box-shadow: 0 18px 40px rgba(15,27,45,.18); overflow: hidden }
.cert-doc svg { display: block; width: 100%; height: auto }
.cert-doc text { font-variant-numeric: lining-nums }
.cert-probe { position: absolute; left: -9999px; top: 0; visibility: hidden }
.cert-share { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px }
.cert-say { min-height: 1.4em; margin-top: 10px; font-size: .95rem }
.cert-qr { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; margin-top: 8px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg) }
.cert-qr[hidden] { display: none }
.cert-qr-img svg { width: 180px; height: 180px; display: block }
.cert-qr .url { overflow-wrap: anywhere }
.cert-note { margin-top: 16px }
/* The course menu marks the lesson or test on screen (learn.js markNav). */
.linkish.on { color: var(--ink); font-weight: 600; box-shadow: inset 3px 0 0 var(--blue); padding-left: 10px }
.revisit { margin: 4px 0 12px 20px }
/* Video tutorials (scripts/videos.mjs, site/js/videos.js): click-to-load players, cards, chapters, the path. */
.vhero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 40px; align-items: center }
@media (max-width: 900px) { .vhero { grid-template-columns: 1fr } }
.vstats { display: flex; gap: 22px; list-style: none; padding: 0; margin: 18px 0 0; color: var(--muted) }
.vstats b { color: var(--ink); font-size: 1.3rem; margin-right: 4px }
.vcap { margin-top: 10px; font-size: .92rem; color: var(--muted) }
.vplayer { position: relative; aspect-ratio: 16 / 9; border-radius: 10px; overflow: hidden; background: #0B1220; box-shadow: 0 14px 34px rgba(15,27,45,.18) }
.vplayer iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0 }
.vplay { position: absolute; inset: 0; display: block }
.vplay img { width: 100%; height: 100%; object-fit: cover; display: block }
.vbig { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 72px; height: 72px; border-radius: 50%; background: rgba(42,127,234,.92); color: #fff; display: grid; place-items: center; box-shadow: 0 8px 24px rgba(0,0,0,.35) }
.vbig svg { width: 30px; height: 30px; margin-left: 3px }
.vplay:hover .vbig, .vplay:focus-visible .vbig { background: var(--blue) }
.vdur { position: absolute; right: 10px; bottom: 10px; background: rgba(0,0,0,.75); color: #fff; font-size: .8rem; font-weight: 600; padding: 3px 7px; border-radius: 4px }
.vcard { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column }
.vcard[hidden], .vgroup[hidden] { display: none }
.vthumbs { position: relative; display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #0B1220 }
.vthumbs img { width: 100%; height: 100%; object-fit: cover; display: block }
.vpi { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 46px; height: 46px; border-radius: 50%; background: rgba(0,0,0,.6); color: #fff; display: grid; place-items: center }
.vpi svg { margin-left: 2px }
.vthumbs:hover .vpi { background: var(--blue) }
.vstep { position: absolute; left: 10px; top: 10px; width: 28px; height: 28px; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 700; display: grid; place-items: center; font-size: .9rem }
.vcard h3 { font-size: 1.02rem; margin: 0 0 6px } .vcard h3 a { color: var(--ink); text-decoration: none } .vcard h3 a:hover { text-decoration: underline }
.vcard .cb p { margin: 0 0 6px; font-size: .92rem } .vmeta { color: var(--muted); font-size: .85rem }
.vsearch { max-width: 520px; margin: 6px 0 12px }
.vgroup { margin-top: 36px }
.vnone { margin-top: 20px }
.vgrid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr); gap: 28px; margin-top: 20px; align-items: start }
@media (max-width: 900px) { .vgrid { grid-template-columns: 1fr } }
.vchs h2 { font-size: 1.1rem; margin: 0 } .vchs ol { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 4px }
.vch { width: 100%; display: flex; gap: 12px; text-align: left; background: none; border: 0; border-radius: 6px; padding: 8px 10px; font: inherit; color: var(--ink); cursor: pointer }
.vch:hover, .vch[aria-current] { background: var(--bg-2) } .vch[aria-current] { box-shadow: inset 3px 0 0 var(--blue) }
.vt { font-family: var(--mono, ui-monospace, Menlo, monospace); color: var(--blue); min-width: 3.2em }
.vabout { max-width: 820px }
.vnavs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 26px }
@media (max-width: 700px) { .vnavs { grid-template-columns: 1fr } }
.vnav { display: flex; gap: 12px; align-items: center; border: 1px solid var(--line); border-radius: 10px; padding: 10px; text-decoration: none; color: var(--ink); background: var(--bg) }
.vnav.empty { border: 0; background: none }
.vnav img { width: 120px; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 6px; flex: none }
.vnav span { display: grid; gap: 2px; min-width: 0 } .vnav small { color: var(--muted) } .vnav.next { justify-content: flex-end; text-align: right }
.vnav.next img { order: 2 }
.vcard .cb { padding: 14px 16px 16px; flex: 1 }
.sec-head.sp { margin-top: 44px }