/* PTMCO marketing site — hand-written design system.
   Ink/Signal/Mist palette, Source Serif 4 display + Public Sans text. */

@font-face { font-family: "Source Serif 4"; font-style: normal; font-weight: 200 900; font-display: swap;
  src: url("fonts/source-serif-4-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Source Serif 4"; font-style: normal; font-weight: 200 900; font-display: swap;
  src: url("fonts/source-serif-4-latin-ext-wght-normal.woff2") format("woff2");
  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Source Serif 4"; font-style: italic; font-weight: 200 900; font-display: swap;
  src: url("fonts/source-serif-4-latin-wght-italic.woff2") format("woff2"); }
@font-face { font-family: "Public Sans"; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url("fonts/public-sans-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Public Sans"; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url("fonts/public-sans-latin-ext-wght-normal.woff2") format("woff2");
  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
  --ink: #15223f;
  --ink-2: #22335a;
  --ink-soft: #3a4867;
  --signal: #c8202d;
  --signal-dark: #a3151f;
  --signal-tint: #fbeced;
  --paper: #ffffff;
  --mist: #f1f3f7;
  --slate: #56617a;
  --rule: #d8dde6;
  --rule-strong: #b9c1cf;

  --serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --sans: "Public Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

  /* type scale (≈1.25) */
  --t-xs: 0.8125rem;   /* 13 */
  --t-sm: 0.9375rem;   /* 15 */
  --t-md: 1.0625rem;   /* 17 body */
  --t-lg: 1.3125rem;   /* 21 */
  --t-xl: 1.6875rem;   /* 27 */
  --t-2xl: clamp(1.75rem, 1.2rem + 1.6vw, 2.25rem);   /* 36 */
  --t-3xl: clamp(2.125rem, 1.3rem + 2.6vw, 3rem);     /* 48 */
  --t-4xl: clamp(2.375rem, 1.4rem + 3.2vw, 3.625rem);  /* 58 */

  --wrap: 72rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --band: clamp(4rem, 3rem + 4vw, 7rem);
  --radius: 6px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 6rem; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 var(--t-md)/1.6 var(--sans);
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
p, ul, ol, dl, h1, h2, h3, h4, figure, blockquote { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--ink); color: #fff; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.012em; line-height: 1.12; text-wrap: balance; }
h1 { font-size: var(--t-4xl); font-variation-settings: "opsz" 60; letter-spacing: -0.02em; line-height: 1.04; }
h2 { font-size: var(--t-3xl); font-variation-settings: "opsz" 48; }
h3 { font-size: var(--t-lg); line-height: 1.25; font-variation-settings: "opsz" 20; }
h4 { font: 600 var(--t-md)/1.4 var(--sans); }
.lede { font-size: var(--t-lg); line-height: 1.5; color: var(--ink-soft); max-width: 36em; text-wrap: pretty; }
.muted { color: var(--slate); }
.small { font-size: var(--t-sm); }
.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; }
.skip { position: absolute; left: 1rem; top: -4rem; background: var(--ink); color: #fff; padding: .6rem 1rem; z-index: 100; border-radius: var(--radius); }
.skip:focus { top: 1rem; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
.band { padding-block: var(--band); }
.band--mist { background: var(--mist); }
.band--ink { background: var(--ink); color: #e9edf5; }
.band--ink h2, .band--ink h3 { color: #fff; }
.band:not(.band--mist):not(.band--ink) + .band:not(.band--mist):not(.band--ink) { padding-top: 0; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 3rem; padding: .7rem 1.35rem; border-radius: var(--radius);
  font: 600 var(--t-sm)/1.2 var(--sans); letter-spacing: .005em; text-decoration: none;
  border: 1.5px solid transparent; cursor: pointer; transition: background-color .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--signal); color: #fff; }
.btn-primary:hover { background: var(--signal-dark); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn-secondary:hover { border-color: var(--ink); }
.band--ink .btn-secondary { color: #fff; border-color: rgba(255,255,255,.35); }
.band--ink .btn-secondary:hover { border-color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }
.text-link { font-weight: 600; color: var(--signal); text-decoration: none; }
.text-link:hover { text-decoration: underline; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; gap: 2rem; min-height: 4.5rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--ink); flex-shrink: 0; }
.brand-mark { width: 2.25rem; height: 2.25rem; border-radius: 5px; background: var(--signal); display: grid; place-items: center; }
.brand-mark svg { width: 1.45rem; height: 1.45rem; }
.brand-name { font: 700 1.125rem/1 var(--sans); letter-spacing: .04em; }
.brand-sub { display: block; font: 400 var(--t-xs)/1.2 var(--sans); color: var(--slate); letter-spacing: 0; margin-top: .2rem; }
.nav { display: flex; align-items: center; gap: 1.75rem; margin-left: auto; }
.nav a { text-decoration: none; font-size: var(--t-sm); font-weight: 500; color: var(--ink-soft); padding-block: .5rem; border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--signal); }
.nav-actions { display: flex; align-items: center; gap: 1.25rem; }
.nav-actions .signin { font-size: var(--t-sm); font-weight: 600; text-decoration: none; color: var(--ink); }
.nav-actions .btn { min-height: 2.6rem; padding: .55rem 1.1rem; }
.menu-toggle { display: none; margin-left: auto; background: none; border: 1.5px solid var(--rule-strong); border-radius: var(--radius); padding: .5rem .75rem; font: 600 var(--t-sm)/1 var(--sans); color: var(--ink); cursor: pointer; }
@media (max-width: 60rem) {
  .menu-toggle { display: inline-flex; }
  .nav, .nav-actions { display: none; }
  .site-header.open .wrap { flex-wrap: wrap; padding-bottom: 1.25rem; }
  .site-header.open .nav { display: flex; flex-direction: column; align-items: stretch; gap: 0; width: 100%; order: 3; margin: 0; }
  .site-header.open .nav a { padding: .85rem 0; border-bottom: 1px solid var(--rule); font-size: var(--t-md); }
  .site-header.open .nav-actions { display: flex; width: 100%; order: 4; justify-content: space-between; padding-top: .5rem; }
}

/* ---------- hero ---------- */
.hero { padding-block: clamp(3rem, 2rem + 5vw, 6.5rem) clamp(3rem, 2rem + 3vw, 4.5rem); border-bottom: 1px solid var(--rule); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(2.5rem, 5vw, 5rem); align-items: center; }
.hero h1 { max-width: 13em; }
.hero .lede { margin-top: 1.5rem; }
.hero .btn-row { margin-top: 2.25rem; }
.verify { margin-top: 2.75rem; padding-top: 1.75rem; border-top: 1px solid var(--rule); max-width: 32rem; }
.verify label { display: block; font-weight: 600; font-size: var(--t-sm); margin-bottom: .2rem; }
.verify .hint { font-size: var(--t-sm); color: var(--slate); margin-bottom: .75rem; }
.verify-row { display: flex; gap: .5rem; }
.verify input {
  flex: 1; min-width: 0; min-height: 3rem; padding: .6rem .9rem; border: 1.5px solid var(--rule-strong); border-radius: var(--radius);
  font: 500 var(--t-md)/1 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--ink); background: #fff;
}
.verify input::placeholder { letter-spacing: .02em; text-transform: none; color: #8a93a6; }
.verify input:focus-visible { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(21,34,63,.15); }
.verify .btn { background: var(--ink); color: #fff; }
.verify .btn:hover { background: var(--ink-2); }
@media (max-width: 56rem) { .hero-grid { grid-template-columns: minmax(0, 1fr); } .specimen-stage { max-width: 34rem; } }

/* The specimen: a faithful miniature of the real PTMCO certificate */
.specimen-stage { position: relative; padding: 1.5rem 0 1.5rem 1.5rem; }
.specimen-stage::before { /* a second certificate peeking out behind */
  content: ""; position: absolute; inset: 2.6rem -.4rem .2rem 3.2rem; background: #fff; border: 1px solid var(--rule);
  transform: rotate(2.4deg); box-shadow: 0 10px 30px -12px rgba(21,34,63,.18);
}
.cert {
  position: relative; background: #fff; color: var(--ink); border: 1px solid var(--rule);
  box-shadow: 0 1px 1px rgba(21,34,63,.04), 0 12px 24px -8px rgba(21,34,63,.14), 0 40px 60px -30px rgba(21,34,63,.22);
  transform: rotate(-1.4deg); font-size: clamp(.5rem, .38rem + .45vw, .66rem); overflow: hidden;
}
.cert-stripe { height: .55em; background: linear-gradient(90deg, var(--ink) 0 33.3%, var(--signal) 33.3% 66.6%, var(--ink) 66.6%); }
.cert-head { display: flex; align-items: center; gap: .9em; padding: 1.8em 2.6em 1.4em; border-bottom: 1px solid #e5e7eb; }
.cert-head .brand-mark { width: 3.4em; height: 3.4em; border-radius: .4em; }
.cert-head .brand-mark svg { width: 2.2em; height: 2.2em; }
.cert-org b { display: block; font: 700 2em/1 var(--sans); letter-spacing: .01em; }
.cert-org { min-width: 0; }
.cert-org span { display: block; margin-top: .45em; font: 500 .68em/1.2 var(--sans); letter-spacing: .04em; color: var(--slate); white-space: nowrap; overflow: hidden; text-overflow: clip; }
.cert-seal { flex-shrink: 0; margin-left: auto; width: 3.1em; height: 3.1em; border: .3em solid var(--signal); border-radius: 50%; display: grid; place-items: center; color: var(--signal); }
.cert-seal svg { width: 1.7em; height: 1.7em; }
.cert-body { text-align: center; padding: 2.4em 2.6em 2.2em; }
.cert-kicker { font: 600 .9em/1 var(--sans); letter-spacing: .2em; color: var(--slate); }
.cert-certify { margin-top: 2.2em; font-size: 1.15em; color: var(--ink-soft); }
.cert-name { display: inline-block; margin-top: .45em; padding-bottom: .15em; border-bottom: .12em solid var(--ink); font: 700 3.3em/1.1 var(--serif); font-variation-settings: "opsz" 60; }
.cert-completed { margin-top: 1.5em; font-size: 1.05em; color: var(--ink-soft); }
.cert-box { display: inline-block; margin-top: 1.3em; padding: 1.2em 2.4em; border: .16em solid var(--ink); }
.cert-box-title { font: 700 1.22em/1.3 var(--sans); letter-spacing: .05em; }
.cert-box hr { border: 0; border-top: 1px solid #d1d5db; margin: .9em 0 .7em; }
.cert-box-code { font: 800 2.1em/1 var(--sans); color: var(--signal); letter-spacing: .02em; }
.cert-box-meta { margin-top: .75em; font: 600 .95em/1 var(--sans); color: var(--ink-soft); }
.cert-foot { display: grid; grid-template-columns: 1fr auto 1fr; align-items: end; gap: 1em; padding: 1.5em 2.6em 1.3em; background: #f9fafb; border-top: .16em solid var(--ink); }
.cert-foot small { display: block; font: 600 .78em/1 var(--sans); letter-spacing: .12em; color: var(--slate); margin-bottom: .55em; }
.cert-foot strong { font: 700 1.2em/1.1 var(--sans); white-space: nowrap; }
.cert-foot .sig { text-align: center; }
.cert-foot .sig img { width: 8.5em; margin: 0 auto -.4em; }
.cert-foot .sig small { margin: .6em 0 0; }
.cert-foot .id { text-align: right; }
.cert-foot .id strong { font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 1.05em; letter-spacing: .04em; }
.specimen-note { position: absolute; right: .25rem; bottom: -.25rem; font-size: var(--t-xs); color: var(--slate); }

/* facts strip below hero */
.facts-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: clamp(3rem, 5vw, 4.5rem); border-top: 1px solid var(--rule); }
.facts-strip div { padding: 1.25rem 1.5rem 0 0; }
.facts-strip div + div { padding-left: 1.5rem; border-left: 1px solid var(--rule); }
.facts-strip dt { font-size: var(--t-sm); color: var(--slate); margin-top: .35rem; }
.facts-strip dd { margin: 0; font: 600 var(--t-xl)/1.1 var(--serif); font-variant-numeric: lining-nums tabular-nums; order: -1; }
.facts-strip div { display: flex; flex-direction: column; }
@media (max-width: 44rem) {
  .facts-strip { grid-template-columns: 1fr 1fr; }
  .facts-strip div:nth-child(3) { padding-left: 0; border-left: 0; }
  .facts-strip div:nth-child(n+3) { border-top: 1px solid var(--rule); margin-top: 1.25rem; }
}

/* ---------- section heads ---------- */
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.25rem clamp(2rem, 6vw, 6rem); align-items: end; margin-bottom: clamp(2.5rem, 4vw, 3.75rem); }
.section-head p { color: var(--slate); max-width: 34em; text-wrap: pretty; }
.band--ink .section-head p { color: #b8c1d3; }
@media (max-width: 50rem) { .section-head { grid-template-columns: 1fr; } }

/* ---------- certification path ---------- */
.path { position: relative; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; counter-reset: level; }
.path::before, .path::after { content: ""; position: absolute; left: .55rem; right: calc(20% - .55rem); top: .55rem; height: 2px; background: var(--rule-strong); }
.path::after { background: var(--signal); transform-origin: left; transform: scaleX(var(--drawn, 1)); transition: transform 1.6s cubic-bezier(.2,.7,.1,1); }
.path.will-draw { --drawn: 0; }
.path-step { position: relative; padding-right: 1.5rem; }
.path-dot { position: relative; z-index: 1; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: #fff; border: 3px solid var(--signal); }
.path-step:first-child .path-dot { background: var(--signal); }
.path-level { margin-top: 1.4rem; font-size: var(--t-sm); color: var(--slate); }
.path-level::before { counter-increment: level; content: counter(level) ". "; }
.path-step h3 { margin-top: .3rem; font-size: var(--t-2xl); letter-spacing: -.01em; }
.path-step h3 a { text-decoration: none; }
.path-step h3 a:hover { color: var(--signal); }
.path-name { margin-top: .35rem; font-size: var(--t-sm); font-weight: 600; line-height: 1.35; min-height: 2.7em; }
.path-meta { margin-top: 1rem; display: grid; gap: .3rem; font-size: var(--t-sm); color: var(--slate); }
.path-meta div { display: flex; justify-content: space-between; gap: .75rem; padding-bottom: .3rem; border-bottom: 1px solid var(--rule); }
.path-meta dt { color: var(--slate); }
.path-meta dd { margin: 0; color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.path-price-free { color: var(--signal) !important; }
@media (max-width: 60rem) {
  .path::before, .path::after { right: auto; }
  ol.path { grid-template-columns: 1fr; gap: 2.25rem; padding-left: 2.25rem; }
  .path::before, .path::after { left: .5rem; right: auto; top: .3rem; bottom: .3rem; width: 2px; height: auto; transform: scaleY(var(--drawn, 1)); transform-origin: top; }
  .path-step { padding-right: 0; }
  .path-dot { position: absolute; left: -2.25rem; top: .15rem; }
  .path-level { margin-top: 0; }
  .path-name { min-height: 0; }
  .path-meta { max-width: 26rem; }
}
.path-note { margin-top: 2.5rem; color: var(--slate); font-size: var(--t-sm); max-width: 44em; }

/* ---------- steps (a real sequence) ---------- */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; counter-reset: step; }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 1.25rem; }
.steps li::before { content: counter(step); display: block; font: 600 var(--t-xl)/1 var(--serif); color: var(--signal); margin-bottom: .9rem; }
.steps h3 { margin-bottom: .5rem; }
.steps p { color: var(--slate); font-size: var(--t-sm); }
.band--ink .steps li { border-top-color: rgba(255,255,255,.3); }
.band--ink .steps p { color: #b8c1d3; }
@media (max-width: 56rem) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 34rem) { .steps { grid-template-columns: 1fr; } }

/* ---------- split (image + text) ---------- */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: center; }
.split--flip > :first-child { order: 2; }
.duotone { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--ink); aspect-ratio: 4 / 3.4; }
.duotone img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); mix-blend-mode: luminosity; opacity: .8; }
.duotone::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(21,34,63,0) 40%, rgba(21,34,63,.55)); }
.checklist { margin-top: 1.75rem; display: grid; gap: 1.1rem; }
.checklist li { display: grid; grid-template-columns: 1.5rem 1fr; gap: .8rem; }
.checklist li::before { content: ""; width: 1.25rem; height: 1.25rem; margin-top: .2rem; border-radius: 50%; background: var(--signal-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23c8202d'%3E%3Cpath fill-rule='evenodd' d='M16.7 5.3a1 1 0 010 1.4l-8 8a1 1 0 01-1.4 0l-4-4a1 1 0 011.4-1.4L8 12.6l7.3-7.3a1 1 0 011.4 0z'/%3E%3C/svg%3E") center / .8rem no-repeat; }
.checklist b { display: block; font-weight: 600; }
.checklist span { color: var(--slate); font-size: var(--t-sm); }
.band--ink .checklist span { color: #aeb8cc; }
.band--ink .lede { color: #c9d1e0; }
.split h2 + .lede { margin-top: 1.25rem; }
@media (max-width: 52rem) { .split { grid-template-columns: 1fr; } .split--flip > :first-child { order: 0; } }

/* ---------- row lists (guides, links) ---------- */
.rows { border-top: 1px solid var(--rule); }
.row { display: grid; grid-template-columns: 7rem minmax(0, 1fr) auto; gap: 1.5rem; align-items: baseline; padding: 1.5rem 0; border-bottom: 1px solid var(--rule); text-decoration: none; }
.row-code { font: 600 var(--t-xl)/1 var(--serif); }
.row h3 { font: 600 var(--t-md)/1.35 var(--sans); }
.row p { margin-top: .3rem; color: var(--slate); font-size: var(--t-sm); max-width: 44em; }
.row-go { font-weight: 600; font-size: var(--t-sm); color: var(--signal); white-space: nowrap; }
a.row:hover h3 { text-decoration: underline; text-underline-offset: .2em; }
@media (max-width: 40rem) { .row { grid-template-columns: 1fr; gap: .4rem; } }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--rule); max-width: 50rem; }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 1.5rem; padding: 1.35rem 0; font: 600 var(--t-lg)/1.3 var(--serif); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex-shrink: 0; width: .8rem; height: .8rem; margin-top: .35rem; border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: .7rem; }
.faq .answer { padding: 0 0 1.5rem; color: var(--ink-soft); max-width: 40em; }
.faq .answer p + p { margin-top: .75rem; }

/* ---------- tables ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--radius); }
.data-table { width: 100%; border-collapse: collapse; font-size: var(--t-sm); min-width: 40rem; background: #fff; }
.data-table th, .data-table td { text-align: left; padding: .9rem 1.1rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
.data-table thead th { font: 600 var(--t-lg)/1 var(--serif); background: var(--mist); }
.data-table thead th a { text-decoration: none; }
.data-table thead th a:hover { color: var(--signal); }
.data-table tbody th { font-weight: 600; color: var(--slate); width: 12rem; }
.data-table td { font-variant-numeric: tabular-nums; }
.data-table tr:last-child > * { border-bottom: 0; }

/* ---------- inner page head ---------- */
.page-head { padding-block: clamp(3rem, 2rem + 4vw, 5.5rem) clamp(2.5rem, 2rem + 2vw, 3.5rem); border-bottom: 1px solid var(--rule); }
.crumbs { font-size: var(--t-sm); color: var(--slate); margin-bottom: 1.25rem; }
.crumbs a { color: var(--slate); }
.page-head h1 { max-width: 16em; }
.page-head .lede { margin-top: 1.25rem; }
.page-head .btn-row { margin-top: 2rem; }

/* certification detail: title + facts panel */
.cert-head-grid { display: grid; grid-template-columns: minmax(0, 1fr) 22rem; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.code-title { display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
.code-title .code { font: 600 var(--t-4xl)/1 var(--serif); letter-spacing: -.02em; color: var(--signal); }
.facts { border: 1px solid var(--rule); border-radius: var(--radius); background: #fff; }
.facts div { display: flex; justify-content: space-between; gap: 1rem; padding: .85rem 1.25rem; border-bottom: 1px solid var(--rule); font-size: var(--t-sm); }
.facts div:last-of-type { border-bottom: 0; }
.facts dt { color: var(--slate); }
.facts dd { margin: 0; font-weight: 600; text-align: right; }
.facts-price { padding: 1.25rem; border-bottom: 1px solid var(--rule); }
.facts-price b { font: 600 var(--t-3xl)/1 var(--serif); }
.facts-price span { display: block; margin-top: .4rem; font-size: var(--t-sm); color: var(--slate); }
.facts .btn { margin: 1rem 1.25rem 1.25rem; width: calc(100% - 2.5rem); }
@media (max-width: 56rem) { .cert-head-grid { grid-template-columns: 1fr; } .facts { max-width: 28rem; } }

.topics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(2rem, 5vw, 4.5rem); }
.topic { padding: 1.75rem 0; border-top: 1px solid var(--rule); }
.topic p { margin-top: .5rem; color: var(--slate); font-size: var(--t-sm); }
.topic ul { margin-top: .85rem; padding-left: 1.1rem; font-size: var(--t-sm); display: grid; gap: .25rem; }
.topic li::marker { color: var(--signal); }
@media (max-width: 48rem) { .topics { grid-template-columns: 1fr; } }

.audience { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.audience h3 { margin-bottom: .5rem; }
.audience p { color: var(--slate); font-size: var(--t-sm); }
@media (max-width: 48rem) { .audience { grid-template-columns: 1fr; } }

.level-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; border-top: 1px solid var(--rule); padding-top: 1.5rem; }
.level-nav a { text-decoration: none; display: block; padding: 1rem 0; }
.level-nav a:hover b { color: var(--signal); }
.level-nav span { display: block; font-size: var(--t-sm); color: var(--slate); }
.level-nav b { font: 600 var(--t-lg)/1.3 var(--serif); }
.level-nav .next { text-align: right; grid-column: 2; }

/* ---------- long-form (guides, about, legal) ---------- */
.doc { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.toc { position: sticky; top: 6.5rem; font-size: var(--t-sm); max-height: calc(100vh - 8rem); overflow: auto; }
.toc p { font-weight: 600; margin-bottom: .75rem; }
.toc ol { list-style: none; padding: 0; border-left: 1px solid var(--rule); }
.toc a { display: block; padding: .35rem 0 .35rem 1rem; margin-left: -1px; border-left: 2px solid transparent; color: var(--slate); text-decoration: none; line-height: 1.35; }
.toc a:hover { color: var(--ink); }
.toc a.active { color: var(--ink); border-left-color: var(--signal); font-weight: 600; }
@media (max-width: 56rem) { .doc { grid-template-columns: 1fr; } .toc { position: static; max-height: none; } }

.prose { max-width: 42rem; font-size: 1.125rem; line-height: 1.7; }
.prose > * + * { margin-top: 1.15em; }
.prose h2 { font-size: var(--t-2xl); margin-top: 2.6em; padding-top: 1.6em; border-top: 1px solid var(--rule); }
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose h3 { font-size: var(--t-lg); margin-top: 1.9em; }
.prose h2 + *, .prose h3 + * { margin-top: .6em; }
.prose ul, .prose ol { padding-left: 1.25rem; }
.prose li + li { margin-top: .4em; }
.prose li::marker { color: var(--signal); }
.prose a { color: var(--signal); }
.prose .callout { border-left: 3px solid var(--signal); background: var(--mist); padding: 1.25rem 1.5rem; font-size: 1rem; border-radius: 0 var(--radius) var(--radius) 0; }

.end-cta { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: center; padding: clamp(2rem, 4vw, 3rem); background: var(--mist); border-radius: var(--radius); }
.end-cta h2 { font-size: var(--t-2xl); }
.end-cta p { margin-top: .6rem; color: var(--slate); max-width: 38em; }
@media (max-width: 44rem) { .end-cta { grid-template-columns: 1fr; } }

.values { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; }
.values div { border-top: 2px solid var(--ink); padding-top: 1rem; }
.values h3 { margin-bottom: .4rem; }
.values p { color: var(--slate); font-size: var(--t-sm); }
@media (max-width: 52rem) { .values { grid-template-columns: 1fr 1fr; } }
@media (max-width: 30rem) { .values { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #b8c1d3; padding-block: 4rem 2rem; font-size: var(--t-sm); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2.5rem; }
.site-footer .brand { color: #fff; }
.site-footer .brand-sub { color: #93a0b8; }
.footer-about { margin-top: 1.25rem; max-width: 26em; }
.site-footer h2 { font: 600 var(--t-sm)/1 var(--sans); color: #fff; margin-bottom: 1rem; }
.site-footer ul { list-style: none; padding: 0; display: grid; gap: .55rem; }
.site-footer a { color: #b8c1d3; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-top: 3.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.14); color: #93a0b8; }
@media (max-width: 52rem) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-grid > :first-child { grid-column: 1 / -1; } }

/* preview marker (only rendered while the preview cookie is set) */
.preview-pill { position: fixed; z-index: 90; left: 50%; bottom: 1rem; transform: translateX(-50%); display: flex; gap: .75rem; align-items: center; padding: .55rem .6rem .55rem 1rem; background: var(--ink); color: #fff; border-radius: 999px; font-size: var(--t-xs); box-shadow: 0 8px 24px rgba(21,34,63,.3); }
.preview-pill a { color: #fff; background: rgba(255,255,255,.14); padding: .3rem .7rem; border-radius: 999px; text-decoration: none; font-weight: 600; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .path.will-draw { --drawn: 1; }
}
@media print { .site-header, .site-footer, .preview-pill, .toc { display: none; } }