/* ============================================================================
   About page (design source: package/about.html). Consumes theme.css (semantic
   tokens) and chrome.css (.container, .btn*) only — no root-selector block, no hex
   literals, no named CSS colours live here (see theme.css for the token
   contract). This file is entirely separate from wwwroot/css/pages/about.css
   (the Our History single-article template) — the two never load on the same
   page, so shared class names like ".team-grid" or ".history-event" here do
   not collide with team.css / milestones.css either, same convention as
   software.css/bpo.css both defining ".software-jump-nav".

   Colour families, same convention as software.css:
   - "Fixed dark" (--on-dark, --green-950 etc.): the hero and the history
     section are always a saturated/dark brand surface regardless of the site
     theme toggle — branded moments, not theme-reactive content.
   - "Fixed brand-green" (--surface-brand / --on-brand): the closing CTA card.
   - Everything else (jump nav, story, team) is the reactive semantic family
     (--bg, --surface, --fg, --fg-muted, --accent*, --border*).
   ========================================================================= */

html { scroll-behavior: smooth; }

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ============================================================================
   Hero — fixed saturated-green surface (body.has-dark-hero contract, same as
   Software/Home).
   ========================================================================= */
.about-hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 158px 0 108px;
  color: var(--on-dark);
  background:
    radial-gradient(circle at 78% 22%, color-mix(in srgb, var(--green-300) 23%, transparent), transparent 26%),
    radial-gradient(circle at 15% 88%, color-mix(in srgb, var(--green-700) 30%, transparent), transparent 34%),
    linear-gradient(135deg, var(--green-600) 0%, var(--green-700) 48%, var(--green-600) 100%);
}
.about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.09;
  background-image: linear-gradient(color-mix(in srgb, var(--on-dark) 28%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--on-dark) 28%, transparent) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(90deg, black, transparent 82%);
}
.about-hero::after {
  content: "";
  position: absolute;
  right: -170px;
  top: -230px;
  width: 620px;
  height: 620px;
  border: 1px solid color-mix(in srgb, var(--green-300) 13%, transparent);
  border-radius: 50%;
  box-shadow:
    0 0 0 90px color-mix(in srgb, var(--green-300) 3.5%, transparent),
    0 0 0 180px color-mix(in srgb, var(--green-300) 2%, transparent);
}
.about-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.7fr);
  align-items: center;
  gap: clamp(70px, 10vw, 150px);
}
.about-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding-left: 4px;
  color: var(--on-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.about-hero-copy h1 {
  max-width: 820px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(52px, 6.3vw, 90px);
  line-height: 0.97;
  letter-spacing: -0.035em;
  color: var(--on-dark);
  text-wrap: balance;
}
.about-hero-copy > p {
  max-width: 700px;
  margin-top: var(--space-6);
  color: color-mix(in srgb, var(--on-dark) 72%, transparent);
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.72;
}
.about-text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-7);
  padding-bottom: 7px;
  border-bottom: 1px solid color-mix(in srgb, var(--on-dark) 34%, transparent);
  color: var(--on-dark);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition: border-color var(--transition-fast), gap var(--transition-fast);
}
.about-text-link:hover,
.about-text-link:focus-visible {
  gap: var(--space-4);
  border-color: var(--on-dark);
}
.about-at-a-glance {
  position: relative;
  padding: 32px 34px 18px;
  border: 1px solid color-mix(in srgb, var(--on-dark) 17%, transparent);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--on-dark) 7%, transparent);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
}
.about-card-label {
  display: block;
  padding-bottom: var(--space-5);
  color: var(--green-300);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.about-fact {
  display: grid;
  grid-template-columns: minmax(110px, auto) 1fr;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-6) 0;
  border-top: 1px solid color-mix(in srgb, var(--on-dark) 13%, transparent);
}
.about-fact strong {
  color: var(--on-dark);
  font-family: var(--font-display);
  font-size: clamp(25px, 2.25vw, 34px);
  letter-spacing: -0.04em;
}
.about-fact span {
  color: color-mix(in srgb, var(--on-dark) 62%, transparent);
  font-size: 13px;
  line-height: 1.55;
}

/* ============================================================================
   Jump nav — reactive, same pattern as .software-jump-nav.
   ========================================================================= */
.about-jump-nav {
  position: sticky;
  z-index: 20;
  top: var(--header-height);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
  backdrop-filter: blur(16px);
}
.about-jump-nav .container {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  scrollbar-width: none;
}
.about-jump-nav .container::-webkit-scrollbar { display: none; }
.about-jump-nav a {
  flex: 0 0 auto;
  padding: 10px 15px;
  border-radius: var(--radius-pill);
  color: var(--fg-muted);
  font-size: 12px;
  font-weight: 750;
  text-decoration: none;
}
.about-jump-nav a:hover,
.about-jump-nav a:focus-visible {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

/* ============================================================================
   Our story — reactive.
   ========================================================================= */
.about-story {
  padding: 116px 0 110px;
  scroll-margin-top: 142px;
  background: var(--bg);
}
.about-story-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(70px, 10vw, 150px);
  align-items: start;
}
.about-section-heading h2 {
  max-width: 610px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 1.04;
  color: var(--fg);
  text-wrap: balance;
}
.about-story-content { padding-top: 42px; }
.about-story-content p {
  max-width: 760px;
  margin: 0;
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.85;
}
.about-story-content .about-story-lead {
  margin-bottom: var(--space-6);
  color: var(--fg);
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -0.025em;
}

/* ============================================================================
   Team — reactive.
   ========================================================================= */
.about-team {
  padding: 116px 0 124px;
  scroll-margin-top: 142px;
  background: var(--surface);
}
.about-team-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  align-items: end;
  gap: var(--space-8);
}
.about-team-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(46px, 5vw, 70px);
  line-height: 1;
  color: var(--fg);
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-6);
  margin-top: 62px;
  /* Was `align-items: start`, which let every card size to its own bio and left
     the grid visibly ragged. Stretching makes each row share a height; the
     three-line bio clamp below keeps that height sensible. */
  align-items: stretch;
}

/* Bios vary from one line to a full paragraph. Clamp to three lines so the cards
   read as a uniform grid; about-landing.js adds a Show more/less toggle to any
   bio that is actually overflowing, so nothing becomes unreachable. */
.team-bio {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.team-bio.is-expanded {
  display: block;
  overflow: visible;
}
.team-bio-toggle {
  margin-top: var(--space-3);
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.team-bio-toggle:hover,
.team-bio-toggle:focus-visible {
  color: var(--accent-strong);
  text-decoration: underline;
}
.team-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.team-photo {
  position: relative;
  aspect-ratio: 4 / 3.1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--on-brand);
  background: var(--surface-brand);
}
.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.team-photo-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.team-photo-placeholder::before {
  content: "";
  position: absolute;
  width: 54%;
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--on-brand) 20%, transparent);
  border-radius: 50%;
  box-shadow:
    0 0 0 42px color-mix(in srgb, var(--on-brand) 3.5%, transparent),
    0 0 0 84px color-mix(in srgb, var(--on-brand) 2.5%, transparent);
}
.team-photo-placeholder span {
  position: relative;
  z-index: 1;
  padding: 9px 13px;
  border: 1px solid color-mix(in srgb, var(--on-brand) 28%, transparent);
  border-radius: var(--radius-pill);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.team-card-copy { padding: 27px 28px 31px; }
.team-card-copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 23px;
  color: var(--fg);
}
.team-role {
  display: block;
  margin-top: 5px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.team-card-copy p {
  margin-top: var(--space-4);
  margin-bottom: 0;
  color: var(--fg-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ============================================================================
   History — fixed dark surface (same family as the hero), dual-timeline grid.
   See AboutHistorySection.cshtml's comment for why the row layout differs
   structurally from the reference markup's explicit grid-row list.
   ========================================================================= */
.about-history {
  position: relative;
  overflow: hidden;
  padding: 124px 0 132px;
  scroll-margin-top: 142px;
  color: var(--on-dark);
  background:
    radial-gradient(circle at 78% 30%, color-mix(in srgb, var(--grey-500) 20%, transparent), transparent 28%),
    radial-gradient(circle at 10% 90%, color-mix(in srgb, var(--green-600) 55%, transparent), transparent 34%),
    linear-gradient(135deg, var(--green-700) 0%, var(--ink) 52%, var(--green-950) 100%);
}
.about-history::before {
  content: "";
  position: absolute;
  left: -210px;
  bottom: -270px;
  width: 640px;
  height: 640px;
  border: 1px solid color-mix(in srgb, var(--green-300) 12%, transparent);
  border-radius: 50%;
  box-shadow: 0 0 0 100px color-mix(in srgb, var(--green-300) 2.5%, transparent);
  pointer-events: none;
}
.about-history-heading {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.75fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: end;
  margin-bottom: clamp(70px, 8vw, 108px);
  z-index: 0;
}
.about-history .section-kicker { color: var(--green-300); }
.about-history-heading h2 {
  max-width: 760px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(46px, 5.5vw, 76px);
  line-height: 0.98;
  color: var(--on-dark);
  text-wrap: balance;
}
.about-history-heading > p {
  max-width: 600px;
  padding-bottom: 6px;
  margin: 0;
  color: color-mix(in srgb, var(--on-dark) 64%, transparent);
  font-size: 16px;
  line-height: 1.8;
}

.history-comparison { position: relative; }
.history-comparison__heads {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 60px minmax(0, 1fr);
  column-gap: clamp(30px, 4.5vw, 64px);
  align-items: end;
  margin-bottom: var(--space-8);
}
.history-comparison__head-line {
  width: 1px;
  height: 36px;
  justify-self: center;
  background: color-mix(in srgb, var(--on-dark) 20%, transparent);
}
.history-company {
  padding-bottom: var(--space-5);
  border-bottom: 1px solid color-mix(in srgb, var(--on-dark) 20%, transparent);
}
.history-company--left { text-align: right; }
.history-company span {
  display: block;
  margin-bottom: 7px;
  color: color-mix(in srgb, var(--on-dark) 48%, transparent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.history-company--left span { color: var(--green-300); }
.history-company strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(25px, 2.4vw, 35px);
  color: var(--on-dark);
  letter-spacing: -0.04em;
}

.history-comparison__grid {
  position: relative;
  margin: 0;
  padding: 0 0 var(--space-8);
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.history-comparison__grid::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(to bottom, var(--green-500), var(--green-300));
  transform: translateX(-50%);
}
.history-row {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 60px minmax(0, 1fr);
  column-gap: clamp(30px, 4.5vw, 64px);
  align-items: center;
}
.history-row__year {
  grid-column: 2;
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  justify-self: center;
  border: 8px solid var(--green-950);
  border-radius: 50%;
  background: var(--green-500);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--on-dark) 17%, transparent);
}
.history-row__year time {
  color: var(--on-dark);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
}
.history-row__cell { display: flex; flex-direction: column; gap: var(--space-4); }
.history-row__cell--left { grid-column: 1; align-items: flex-end; text-align: right; }
.history-row__cell--right { grid-column: 3; align-items: flex-start; text-align: left; }

.history-event {
  position: relative;
  width: 100%;
  padding: 27px 29px 30px;
  border: 1px solid color-mix(in srgb, var(--on-dark) 13%, transparent);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--on-dark) 5.5%, transparent);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.history-event--left { --event-colour: var(--green-500); }
.history-event--right { --event-colour: var(--accent); }
.history-event__brand {
  display: inline-flex;
  margin-bottom: var(--space-3);
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  color: var(--event-colour);
  background: color-mix(in srgb, var(--event-colour) 16%, transparent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.history-event h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2vw, 27px);
  line-height: 1.15;
  color: var(--on-dark);
}
.history-event p {
  margin-top: var(--space-3);
  margin-bottom: 0;
  color: color-mix(in srgb, var(--on-dark) 58%, transparent);
  font-size: 14px;
  line-height: 1.75;
}

/* ============================================================================
   Closing CTA — fixed brand-green card, same family as Software's.
   ========================================================================= */
.about-cta { padding: 104px 0; background: var(--bg); }
.about-cta-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: var(--space-8);
  padding: clamp(38px, 5.5vw, 72px);
  border-radius: var(--radius-lg);
  color: var(--on-brand);
  background: var(--surface-brand);
  box-shadow: var(--shadow-lg);
}
.about-cta-card::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -160px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--on-brand) 12%, transparent);
}
.about-cta-card > * { position: relative; z-index: 1; }
.about-cta-card span {
  display: block;
  margin-bottom: var(--space-4);
  color: color-mix(in srgb, var(--on-brand) 74%, transparent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.about-cta-card h2 {
  max-width: 820px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 55px);
  line-height: 1.04;
  color: var(--on-brand);
}
.about-cta-card p {
  max-width: 720px;
  margin-top: var(--space-4);
  color: color-mix(in srgb, var(--on-brand) 74%, transparent);
  line-height: 1.72;
}
.about-cta-card .btn { min-width: 198px; background: var(--paper); color: var(--green-800); }
.about-cta-card .btn:hover { color: var(--green-600); }

/* ============================================================================
   Responsive
   ========================================================================= */
@media (max-width: 980px) {
  .about-jump-nav { display: block; gap: 0; padding: 0; box-shadow: none; }
  .about-hero { min-height: auto; padding: 140px 0 92px; }
  .about-hero-grid,
  .about-story-grid,
  .about-team-heading,
  .about-history-heading {
    grid-template-columns: 1fr;
  }
  .about-hero-grid { gap: var(--space-8); }
  .about-at-a-glance { max-width: 680px; }
  .about-story-grid,
  .about-team-heading {
    gap: 46px;
  }
  .about-story-content { padding-top: 0; }
  .about-history-heading > p { max-width: 720px; }
}

@media (max-width: 760px) {
  .about-history { padding: 84px 0 90px; }
  .about-history-heading { margin-bottom: 54px; }
  .history-comparison__heads { display: none; }
  .history-comparison__grid::before { left: 30px; }
  .history-row {
    grid-template-columns: 60px minmax(0, 1fr);
    column-gap: var(--space-5);
  }
  .history-row__year { grid-column: 1; }
  .history-row__cell--left,
  .history-row__cell--right {
    grid-column: 2;
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 640px) {
  .about-hero { padding: 124px 0 72px; }
  .about-hero-copy h1 { font-size: 47px; }
  .about-hero-copy > p { font-size: 16px; }
  .about-at-a-glance { padding: 25px 24px 10px; border-radius: 22px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .about-cta-card { grid-template-columns: 1fr; }
  .about-cta-card .btn { justify-self: start; }
}