/* ============================================================
   Tech Leadership — Andrew Swerdlow
   "The cover, after dark" — circuit-board canvas, scarlet signal.
   Display: Archivo / Archivo Expanded · Body: IBM Plex Sans
   ============================================================ */

:root {
  --bg: #0E0F12;
  --surface: #16181D;
  --surface-2: #1E2127;
  --scarlet: #E2231A;
  --scarlet-hover: #F23A30;
  --scarlet-deep: #B41711;
  --ink: #000000;
  --text: #F2F0EC;
  --muted: #A8ABB4;
  --faint: #8E929C;
  --border: rgba(242, 240, 236, 0.10);
  --border-lit: rgba(226, 35, 26, 0.40);
  --success: #3FB67A;

  --glow-sm: 0 0 0 3px rgba(226, 35, 26, 0.18), 0 0 14px rgba(226, 35, 26, 0.5);
  --shadow: 0 30px 70px -32px rgba(0, 0, 0, 0.8);
  --shadow-scarlet: 0 40px 80px -30px rgba(226, 35, 26, 0.45);

  --display: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --maxw: 1140px;
  --gutter: clamp(1.25rem, 5vw, 4rem);

  --circuit: url("/assets/circuit.svg");
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 800;
  font-stretch: 125%;
  line-height: 0.98;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1.1em; }

/* ---------- layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(4rem, 10vw, 8rem); position: relative; }
.section--tight { padding-block: clamp(3rem, 7vw, 5.5rem); }
.center { text-align: center; }
.measure { max-width: 46ch; }
.measure-wide { max-width: 62ch; }

.eyebrow {
  font-family: var(--body);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--scarlet);
  margin: 0 0 1.25rem; display: inline-flex; align-items: center; gap: 0.6rem;
}
.eyebrow::before {
  content: ""; width: 7px; height: 7px; border-radius: 1px;
  background: var(--scarlet); box-shadow: var(--glow-sm); flex: none;
}

.lead { font-size: clamp(1.08rem, 1.7vw, 1.3rem); color: var(--muted); line-height: 1.6; }

.rule { height: 1px; background: var(--border); border: 0; margin: 0; }

.neon {
  color: transparent;
  -webkit-text-stroke: 2px var(--text);
  text-shadow: 0 0 22px rgba(226, 35, 26, 0.6);
  paint-order: stroke fill;
}
@supports not ((-webkit-text-stroke: 2px var(--text))) {
  .neon { color: var(--text); text-shadow: 0 0 22px rgba(226, 35, 26, 0.6); }
}

/* ---------- buttons ---------- */
.btn {
  --bg-btn: var(--scarlet); --fg-btn: #fff; --bd-btn: var(--scarlet);
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--display); font-size: 0.84rem; font-weight: 700;
  font-stretch: 110%; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none;
  padding: 0.95rem 1.8rem; border: 1.5px solid var(--bd-btn);
  background: var(--bg-btn); color: var(--fg-btn);
  border-radius: 2px; cursor: pointer;
  transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--scarlet:hover { background: var(--scarlet-hover); border-color: var(--scarlet-hover); box-shadow: var(--shadow-scarlet); }
.btn--ghost { --bg-btn: transparent; --fg-btn: var(--text); --bd-btn: rgba(242,240,236,0.45); }
.btn--ghost:hover { background: var(--text); color: var(--ink); border-color: var(--text); }

.textlink {
  color: var(--scarlet); text-decoration: none;
  border-bottom: 1px solid var(--border-lit); padding-bottom: 1px;
  transition: color .2s ease, border-color .2s ease;
}
.textlink:hover { color: var(--scarlet-hover); border-color: var(--scarlet-hover); }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14, 15, 18, 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
  border-bottom: 1px solid rgba(242, 240, 236, 0.08);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border-lit);
  box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.6);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand {
  font-family: var(--display); font-weight: 800; font-stretch: 110%;
  font-size: 1.02rem; text-transform: uppercase; letter-spacing: 0.04em;
  text-decoration: none; color: var(--text);
  display: inline-flex; align-items: center; gap: 0.6rem;
}
.brand .brand-mark {
  font-size: 0.6rem; letter-spacing: 0.2em; color: var(--scarlet);
  font-weight: 600; font-stretch: 100%; display: inline-flex; align-items: center; gap: 0.5rem;
}
.brand .brand-mark::before {
  content: ""; width: 6px; height: 6px; border-radius: 1px; background: var(--scarlet);
  box-shadow: var(--glow-sm);
}
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  text-decoration: none; color: var(--muted);
  font-size: 0.84rem; font-weight: 500; letter-spacing: 0.02em;
  position: relative; transition: color .2s ease;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1.5px; width: 0;
  background: var(--scarlet); transition: width .25s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.nav-cta {
  color: var(--text); border: 1.5px solid var(--scarlet);
  padding: 0.55rem 1.1rem; border-radius: 2px;
  font-family: var(--display); font-weight: 700; font-stretch: 110%;
  letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.74rem;
}
.nav-links a.nav-cta::after { display: none; }
.nav-links a.nav-cta:hover { background: var(--scarlet); color: #fff; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; width: 44px; height: 44px; padding: 10px; color: var(--text); }
.nav-toggle span { display: block; height: 2px; background: currentColor; margin: 5px 0; transition: transform .3s ease, opacity .3s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 76px 0 auto 0; flex-direction: column; gap: 0; align-items: stretch;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 1rem var(--gutter) 2rem;
    transform: translateY(-130%); transition: transform .35s ease; box-shadow: var(--shadow);
  }
  .nav-links.is-open { transform: translateY(0); }
  .nav-links a { padding: 1rem 0; border-bottom: 1px solid var(--border); font-size: 1.05rem; }
  .nav-links a::after { display: none; }
  .nav-links a.nav-cta { border: 1.5px solid var(--scarlet); text-align: center; margin-top: 1rem; padding: 0.9rem; }
}

/* ---------- circuit texture ---------- */
.circuit-bg { position: relative; }
.circuit-bg::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image: var(--circuit); background-size: 260px 260px;
  opacity: 0.9; pointer-events: none;
}
.circuit-bg > * { position: relative; z-index: 1; }

/* ---------- hero (RED — mirrors the book cover) ---------- */
.hero {
  position: relative; overflow: hidden; padding-block: clamp(2.25rem, 5.5vw, 4.5rem);
  background: var(--scarlet); color: #fff;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image: url("/assets/circuit-ink.svg"); background-size: 260px 260px;
  opacity: 1; pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; right: -8%; top: -20%; z-index: 0;
  width: 56vw; height: 56vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.12), transparent 60%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.hero .eyebrow { color: #fff; }
.hero .eyebrow::before { background: #fff; box-shadow: none; }
.hero h1 { font-size: clamp(2.7rem, 7vw, 5.6rem); line-height: 0.92; max-width: 14ch; color: #000; }
.hero h1 .neon {
  color: transparent; -webkit-text-stroke: 2.5px #fff;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.55); paint-order: stroke fill;
}
.hero .lead { max-width: 46ch; margin-top: 1.5rem; color: rgba(255, 255, 255, 0.94); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.4rem; }
/* buttons on red: primary becomes black, ghost becomes white-outline */
.hero .btn--scarlet { background: #0E0F12; border-color: #0E0F12; color: #fff; }
.hero .btn--scarlet:hover { background: #000; border-color: #000; box-shadow: 0 18px 40px -18px rgba(0,0,0,0.6); }
.hero .btn--ghost { border-color: rgba(255,255,255,0.75); color: #fff; }
.hero .btn--ghost:hover { background: #fff; color: var(--scarlet); border-color: #fff; }
.hero-cover { display: flex; justify-content: center; }
.hero-cover img {
  width: 100%; max-width: 340px; border-radius: 5px;
  transform: rotate(-3deg); border: 1px solid rgba(0,0,0,0.25);
  box-shadow: 0 40px 80px -26px rgba(0,0,0,0.65), 0 0 0 1px rgba(255,255,255,0.08);
  transition: transform .4s ease;
}
.hero-cover img:hover { transform: rotate(0deg) translateY(-4px); }
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-cover { order: -1; margin-bottom: 1rem; }
  .hero-cover img { max-width: 240px; }
}

.hero-meta { margin-top: 3.2rem; display: flex; flex-wrap: wrap; gap: 2.5rem; border-top: 1px solid rgba(255,255,255,0.28); padding-top: 2rem; }
.hero-meta div { min-width: 90px; }
.hero-meta .stat { font-family: var(--display); font-weight: 900; font-stretch: 125%; font-size: clamp(1.8rem, 3vw, 2.6rem); display: block; line-height: 1; color: #fff; }
.hero-meta .stat-label { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(255,255,255,0.88); }

/* hero wordmark — recreates the cover's neon T·E·C·H + black LEADERSHIP lockup */
.wordmark { margin: 0 0 0.1em; }
.wm-tech {
  display: inline-flex; align-items: center;
  font-family: var(--display); font-weight: 900; font-stretch: 125%;
  font-size: clamp(2.8rem, 8vw, 5.8rem); line-height: 0.92; letter-spacing: 0.06em;
  color: transparent; -webkit-text-stroke: 2.5px #fff;
  text-shadow: 0 0 24px rgba(255, 255, 255, 0.55); paint-order: stroke fill;
}
.wm-tech i {
  -webkit-text-stroke: 0; width: 0.13em; height: 0.13em; margin: 0 0.16em;
  background: #fff; border-radius: 1px; align-self: center;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.85); flex: none;
}
@supports not ((-webkit-text-stroke: 2px #fff)) { .wm-tech { color: #fff; } }
.wm-lead {
  display: block; font-family: var(--display); font-weight: 900; font-stretch: 125%;
  font-size: clamp(2.2rem, 6vw, 4.6rem); line-height: 0.9; letter-spacing: 0.02em; color: #000;
}

/* above-the-fold quick-buy row */
.hero-formats { display: flex; align-items: center; flex-wrap: wrap; gap: 0.85rem; margin-top: 1.4rem; font-size: 0.9rem; }
.hero-formats span { color: rgba(255,255,255,0.85); letter-spacing: 0.04em; }
.hero-formats a {
  color: #fff; text-decoration: none; font-weight: 600;
  border: 1px solid rgba(255,255,255,0.55); border-radius: 2px; padding: 0.4rem 0.9rem;
  transition: background .2s ease, color .2s ease;
}
.hero-formats a:hover { background: #fff; color: var(--scarlet); }

/* cover on a dark plate so the red book never camouflages on the red hero */
.hero-cover { align-self: center; }
.hero-cover .cover-plate {
  display: block; background: linear-gradient(160deg, #20232b, #0E0F12);
  padding: clamp(0.9rem, 2vw, 1.4rem); border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  box-shadow: 0 44px 90px -30px rgba(0, 0, 0, 0.75);
  transform: rotate(-3deg); width: 100%; max-width: 288px; margin-inline: auto;
}
.hero-cover .cover-plate img {
  transform: none; border: none; border-radius: 3px;
  box-shadow: 0 14px 34px -12px rgba(0, 0, 0, 0.7);
}
.hero-cover .cover-plate:hover { transform: rotate(0) translateY(-4px); transition: transform .4s ease; }

/* ---------- credibility strip ---------- */
.logos { background: var(--surface); border-block: 1px solid var(--border); }
.logos .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: clamp(1rem, 4vw, 2.5rem); padding-block: 2rem; }
.logos .logos-label { font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--faint); }
.logos .logo-name { font-family: var(--display); font-weight: 700; font-stretch: 110%; text-transform: uppercase; font-size: clamp(1rem, 1.8vw, 1.35rem); letter-spacing: 0.03em; color: var(--text); display: inline-flex; align-items: center; gap: clamp(1rem,4vw,2.5rem); }
.logos .logo-name::before { content: ""; width: 6px; height: 6px; border-radius: 1px; background: var(--scarlet); box-shadow: var(--glow-sm); }

/* ---------- generic two-col ---------- */
.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.split--reverse > :first-child { order: 2; }
@media (max-width: 820px) { .split, .split--reverse { grid-template-columns: 1fr; } .split--reverse > :first-child { order: 0; } }

/* ---------- cards ---------- */
.card-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 4px; padding: 2rem 1.9rem; position: relative; overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease, background .3s ease;
}
.card:hover { transform: translateY(-4px); background: var(--surface-2); border-color: var(--border-lit); box-shadow: 0 24px 50px -30px rgba(226,35,26,0.4); }
.card .card-num { font-family: var(--display); font-weight: 900; font-stretch: 125%; font-size: 1.1rem; color: var(--scarlet); }
.card h3 { font-size: 1.4rem; margin-top: 0.6rem; }
.card p { color: var(--muted); font-size: 0.98rem; margin-bottom: 0; }

/* ---------- book cover image ---------- */
.cover-shot { display: flex; justify-content: center; }
.cover-shot img {
  width: 100%; max-width: 360px; border-radius: 5px;
  box-shadow: var(--shadow-scarlet); transform: rotate(-2deg);
  transition: transform .4s ease;
}
.cover-shot img:hover { transform: rotate(0) translateY(-4px); }

/* ---------- format buy-box ---------- */
.formats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 2.5rem; }
@media (max-width: 760px) { .formats { grid-template-columns: 1fr; } }
.format-card {
  background: var(--surface); border: 1px solid var(--border); border-top: 3px solid var(--scarlet);
  border-radius: 4px; padding: 2rem 1.7rem; display: flex; flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease, background .3s ease;
}
.format-card:hover { transform: translateY(-4px); background: var(--surface-2); box-shadow: var(--shadow-scarlet); }
.format-card .f-icon { color: var(--scarlet); margin-bottom: 1rem; }
.format-card .f-icon svg { width: 30px; height: 30px; display: block; }
.format-card h3 { font-size: 1.35rem; margin: 0 0 0.5rem; }
.format-card p { color: var(--muted); font-size: 0.94rem; flex: 1; }
.format-card .btn { width: 100%; justify-content: center; margin-top: 1.2rem; }
.format-card .f-sub { font-family: var(--body); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); margin: 0.7rem 0 0; text-align: center; }
.also-at { margin-top: 1.6rem; font-size: 0.92rem; color: var(--faint); }
.also-at a { color: var(--muted); text-decoration: none; border-bottom: 1px solid var(--border); }
.also-at a:hover { color: var(--text); border-color: var(--text); }

/* ---------- inline endorsement ---------- */
.endorse {
  margin: 2rem 0 0; padding: 1.2rem 0 0 1.4rem;
  border-left: 3px solid var(--scarlet);
  font-family: var(--body); font-style: italic; font-size: 1.02rem; line-height: 1.55;
  color: var(--text);
}
.endorse cite {
  display: block; margin-top: 0.8rem; font-style: normal; font-size: 0.82rem;
  letter-spacing: 0.04em; color: var(--muted);
}
.endorse cite strong { color: var(--text); }

/* ---------- testimonial ---------- */
.quote { background: var(--surface); border-block: 1px solid var(--border); }
.quote blockquote {
  margin: 0; font-family: var(--display); font-weight: 700; font-stretch: 110%; text-transform: none;
  font-size: clamp(1.45rem, 3.2vw, 2.3rem); line-height: 1.22; letter-spacing: 0;
  max-width: 26ch; margin-inline: auto; text-align: center; color: var(--text);
}
.quote .attribution { text-align: center; margin-top: 2rem; }
.quote .attribution .name { font-family: var(--display); font-weight: 700; font-stretch: 110%; text-transform: uppercase; letter-spacing: 0.04em; }
.quote .attribution .role { color: var(--muted); font-size: 0.85rem; }
.quote .q-mark { font-family: var(--display); font-weight: 900; font-size: 4rem; color: var(--scarlet); line-height: 0.6; text-align: center; display: block; margin-bottom: 1rem; text-shadow: 0 0 24px rgba(226,35,26,0.5); }

/* ---------- node tick list ---------- */
.tick-list { list-style: none; margin: 0; padding: 0; }
.tick-list li { position: relative; padding-left: 1.9rem; margin-bottom: 0.95rem; color: var(--muted); }
.tick-list li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 8px; height: 8px; border-radius: 1px; background: var(--scarlet); box-shadow: var(--glow-sm);
}

/* ---------- bands ---------- */
.band { background: var(--surface); border-block: 1px solid var(--border); }
.band--scarlet { background: linear-gradient(135deg, var(--scarlet-deep), var(--scarlet)); color: #fff; }
.band--scarlet .eyebrow { color: #fff; }
.band--scarlet .eyebrow::before { background: #fff; box-shadow: none; }
.band--scarlet .lead { color: rgba(255,255,255,0.85); }
.band--scarlet .btn--ghost { --bd-btn: rgba(255,255,255,0.7); --fg-btn: #fff; }
.band--scarlet .btn--ghost:hover { background: #fff; color: var(--scarlet); border-color: #fff; }
.band--scarlet .btn--scarlet { --bg-btn: #fff; --fg-btn: var(--scarlet); --bd-btn: #fff; }
.band--scarlet .btn--scarlet:hover { --bg-btn: #0E0F12; --fg-btn: #fff; --bd-btn: #0E0F12; box-shadow: none; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 4rem); align-items: start; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.field { margin-bottom: 1.2rem; }
.field label { display: block; font-family: var(--body); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); margin-bottom: 0.5rem; }
.field input, .field textarea, .field select {
  width: 100%; font-family: var(--body); font-size: 1rem; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 3px;
  padding: 0.85rem 1rem; transition: border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--scarlet); box-shadow: 0 0 0 3px rgba(226,35,26,0.18);
}
.field textarea { min-height: 140px; resize: vertical; }
.field select { appearance: none; -webkit-appearance: none; }
.form-note { margin-top: 0.9rem; font-size: 0.85rem; color: var(--scarlet); }

/* ---------- footer ---------- */
.site-footer { background: var(--bg); border-top: 1px solid var(--border); padding-block: clamp(3rem, 6vw, 4.5rem); position: relative; overflow: hidden; }
.site-footer::before { content: ""; position: absolute; inset: 0; background-image: var(--circuit); background-size: 260px 260px; opacity: 0.5; pointer-events: none; }
.site-footer .wrap { position: relative; z-index: 1; }
.site-footer a { color: var(--muted); text-decoration: none; transition: color .2s ease; }
.site-footer a:hover { color: var(--text); }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; }
.footer-brand { font-family: var(--display); font-weight: 900; font-stretch: 125%; text-transform: uppercase; font-size: 1.4rem; color: var(--text); }
.footer-cols { display: flex; flex-wrap: wrap; gap: clamp(2rem, 6vw, 4rem); }
.footer-col h4 { font-family: var(--body); font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--faint); margin-bottom: 1rem; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.6rem; font-size: 0.95rem; }
.footer-bottom { margin-top: 3rem; padding-top: 1.6rem; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; font-size: 0.82rem; color: var(--faint); }
.footer-bottom .socials { display: flex; gap: 1.4rem; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- page hero (interior) ---------- */
.page-hero { padding-block: clamp(3.5rem, 9vw, 6.5rem) clamp(2rem, 5vw, 3.5rem); position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; z-index: 0; background-image: var(--circuit); background-size: 260px 260px; opacity: 0.8; pointer-events: none; }
.page-hero .wrap { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2.3rem, 5.5vw, 4rem); max-width: 20ch; }
.breadcrumb { font-family: var(--body); font-size: 0.76rem; letter-spacing: 0.06em; color: var(--faint); margin-bottom: 1.5rem; text-transform: uppercase; }
.breadcrumb a { text-decoration: none; color: var(--scarlet); }

/* ---------- prose ---------- */
.prose p { color: var(--muted); }
.prose strong { color: var(--text); }
.prose h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-top: 2.5rem; }
.prose h3 { font-size: 1.25rem; margin-top: 2rem; }

/* ---------- skip link & focus ---------- */
.skip-link { position: absolute; left: -999px; top: 0; z-index: 100; background: var(--scarlet); color: #fff; padding: 0.75rem 1.25rem; border-radius: 0 0 4px 0; }
.skip-link:focus { left: 0; }
:focus-visible { outline: 2px solid var(--scarlet); outline-offset: 3px; }