/* ════════════════════════════════════════════════════════════════════
   ABOUT US — Steel & Ember Hero
   Isolated component (see about-hero.js). Full-bleed photographic
   hero for the About Us hub page: a dark brushed-steel scrim carrying
   the headline, an ember glow drifting behind it, and a jump-pillar
   nav (Our Story / What We Do / Leadership / Companies) that gives a
   hub page its most useful job, getting the visitor to the right
   section fast. Matches the site's established hero convention (see
   .oj-hero in journey-hero.css, .mvv-hero in vision-hero.css).

   Motion contract: only transform / opacity are animated on anything
   that runs continuously. Width, height, margin, left and top are
   never transitioned.
   ════════════════════════════════════════════════════════════════════ */

.au-hero {
  --steel-dark: #14171C;
  --steel-mid: #1E222A;
  --steel-deep: #0B0D11;
  --ink: #F5F7FB;
  --ink-dim: #C3C8D2;
  --accent: #FF6A1F;
  --accent-2: #FF7518;
  --accent-hot: #FFC24B;
  position: relative;
  min-height: 100vh;
  height: 100vh;
  min-height: 720px;
  max-height: 1180px;
  overflow: hidden;
  display: flex;
  align-items: center;
  background: var(--steel-dark);
  color: var(--ink);
}

@media (max-width: 900px) {
  .au-hero { height: auto; min-height: 100svh; max-height: none; padding-bottom: 2.5rem; }
}

.au-hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

/* ══ full-bleed photo ══ */
.au-hero-visual { position: absolute; inset: 0; overflow: hidden; }

.au-hero-visual picture,
.au-hero-visual-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.au-hero-visual-img {
  object-fit: cover;
  object-position: 62% 38%;
  transform: scale(1.06);
  opacity: 0;
  will-change: transform, opacity;
  backface-visibility: hidden;
}

/* dark steel scrim on the left carries the headline, fading into the
   photo on the right; faint top/bottom vignette blends into the nav
   above and the wave below */
.au-hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, var(--steel-deep) 0%, rgba(11, 13, 17, .95) 32%, rgba(11, 13, 17, .58) 56%, rgba(11, 13, 17, .16) 76%, transparent 94%),
    linear-gradient(180deg, rgba(11, 13, 17, .4) 0%, transparent 18%, transparent 78%, rgba(11, 13, 17, .58) 100%);
}

@media (max-width: 900px) {
  .au-hero-scrim {
    background:
      linear-gradient(180deg, rgba(11, 13, 17, .8) 0%, rgba(11, 13, 17, .42) 24%, rgba(11, 13, 17, .32) 44%, rgba(11, 13, 17, .6) 66%, rgba(11, 13, 17, .96) 100%),
      linear-gradient(90deg, rgba(11, 13, 17, .5) 0%, transparent 45%, transparent 60%, rgba(11, 13, 17, .35) 100%);
  }
}

/* ── ember glow drifting behind the headline ── */
.au-hero-glow {
  position: absolute;
  left: 4%;
  top: 12%;
  width: min(38vw, 460px);
  height: min(38vw, 460px);
  z-index: 1;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 194, 75, .32), rgba(255, 117, 24, .12) 45%, transparent 72%);
  filter: blur(10px);
  opacity: .75;
  animation: auGlowPulse 6.4s ease-in-out infinite;
}

@keyframes auGlowPulse {
  0%, 100% { opacity: .6; }
  50% { opacity: .85; }
}

@media (max-width: 900px) {
  .au-hero-glow { left: 50%; top: 6%; transform: translateX(-50%); width: 70vw; height: 70vw; }
}

/* ══ content ══ */
.au-hero-inner {
  position: relative;
  z-index: 5;
  width: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: calc(var(--nav-h) + 2rem) 1.75rem 4rem;
}

.au-hero-content { max-width: 720px; }

.au-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--accent-hot);
  opacity: 0;
}

.au-hero-eyebrow-line {
  width: 30px;
  height: 1.5px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hot));
}

.au-hero-heading {
  margin-top: 1.1rem;
  font-family: var(--font-display);
  text-transform: none;
  font-size: clamp(2.5rem, 4.2vw + 1vh, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.01em;
}

.au-hero-heading .line { display: block; opacity: 0; }
.au-hero-heading .ink { color: var(--ink); }
.au-hero-heading .accent {
  color: var(--accent);
  filter: drop-shadow(0 0 26px rgba(255, 106, 31, .32));
}

.au-hero-desc {
  margin-top: 1.1rem;
  max-width: 50ch;
  font-size: 1.04rem;
  line-height: 1.72;
  color: var(--ink-dim);
  opacity: 0;
}

/* ── CTA: orange pill, white text, arrow badge ── */
.au-hero-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .9rem;
  margin-top: 1.9rem;
  padding: .5rem .5rem .5rem 1.55rem;
  border-radius: 3rem;
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border: 1px solid rgba(255, 255, 255, .2);
  box-shadow: 0 10px 26px rgba(255, 106, 31, .28);
  opacity: 0;
  transition: box-shadow .3s ease, transform .3s cubic-bezier(.22, 1, .36, 1), background .3s ease;
}

.au-hero-cta:hover,
.au-hero-cta:focus-visible {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #E85D00, var(--accent));
  box-shadow: 0 16px 34px rgba(255, 106, 31, .4);
}

.au-hero-cta:focus-visible { outline: 2px solid var(--accent-hot); outline-offset: 3px; }

.au-hero-cta-label {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.au-hero-cta-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #fff;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform .3s cubic-bezier(.22, 1, .36, 1);
}

.au-hero-cta-arrow svg { width: 16px; height: 16px; }

.au-hero-cta:hover .au-hero-cta-arrow,
.au-hero-cta:focus-visible .au-hero-cta-arrow { transform: translateX(5px); }

/* ── jump-pillar nav: About Us being a hub page, the most useful
   thing its hero can do is get the visitor to the right section ── */
.au-hero-pillars {
  display: flex;
  align-items: stretch;
  gap: 1.6rem;
  margin-top: 2.6rem;
  opacity: 0;
  flex-wrap: wrap;
}

.au-hero-pillar {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  color: inherit;
}

.au-hero-pillar-icon {
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 117, 24, .4);
  color: var(--accent-hot);
  transition: transform .28s cubic-bezier(.22, 1, .36, 1), color .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.au-hero-pillar-icon svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.au-hero-pillar-text { display: flex; flex-direction: column; gap: .16rem; transition: transform .28s cubic-bezier(.22, 1, .36, 1); }

.au-hero-pillar-label {
  font-family: var(--font-display);
  font-size: .96rem;
  font-weight: 700;
  color: var(--ink);
}

.au-hero-pillar-sub {
  font-family: var(--font-mono);
  font-size: .64rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.au-hero-pillar:hover .au-hero-pillar-icon,
.au-hero-pillar:focus-visible .au-hero-pillar-icon {
  transform: scale(1.08);
  color: #fff;
  border-color: var(--accent-hot);
  box-shadow: 0 0 0 5px rgba(255, 117, 24, .14), 0 0 16px rgba(255, 194, 75, .35);
}

.au-hero-pillar:hover .au-hero-pillar-text,
.au-hero-pillar:focus-visible .au-hero-pillar-text { transform: translateY(-2px); }

.au-hero-pillar:focus-visible { outline: 2px solid var(--accent-hot); outline-offset: 4px; border-radius: .6rem; }

.au-hero-pillar-div { width: 1px; align-self: stretch; background: rgba(255, 255, 255, .14); }

@media (max-width: 560px) {
  .au-hero-pillars { justify-content: center; }
  .au-hero-pillar-div { display: none; }
}

/* ── bottom curved transition: steel-dark fill + thin orange accent line ── */
.au-hero-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 3;
  height: clamp(56px, 8vw, 100px);
  pointer-events: none;
}

.au-hero-wave svg { display: block; width: 100%; height: 100%; }

.au-hero-wave-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left;
}

.au-hero-wave-fill { fill: var(--surface, #fff); }

@media (max-width: 900px) {
  .au-hero-wave { display: none; }
}

/* ══ tablet ══ */
@media (max-width: 1100px) {
  .au-hero-content { max-width: 540px; }
  .au-hero-pillars { gap: 1.2rem; margin-top: 2.2rem; }
}

/* ══ mobile: text stacks centered over the same full-bleed photo ══ */
@media (max-width: 900px) {
  .au-hero-inner { padding: calc(var(--nav-h) + 1.6rem) 1.25rem 2.5rem; }
  .au-hero-content { max-width: none; text-align: center; }
  .au-hero-eyebrow { justify-content: center; }
  .au-hero-desc { margin-left: auto; margin-right: auto; }
  .au-hero-cta { margin-left: auto; margin-right: auto; }
  .au-hero-pillars { justify-content: center; margin-left: auto; margin-right: auto; width: fit-content; }
}

@media (prefers-reduced-motion: reduce) {
  .au-hero-glow { animation: none !important; }
}

/* ── drifting glow-dot particles (mirrors .oj-hero-particles on the
   journey page): plain spans injected once by about-hero.js with
   randomized CSS custom properties, animated purely by the keyframe
   below ── */
.au-hero-particles { position: absolute; inset: 0; z-index: 2; overflow: hidden; pointer-events: none; }

.au-hero-particle {
  position: absolute;
  bottom: -5%;
  left: var(--x, 50%);
  width: var(--size, 3px);
  height: var(--size, 3px);
  border-radius: 50%;
  background: var(--hue, var(--accent-2));
  box-shadow: 0 0 6px 1px var(--hue, rgba(255, 117, 24, .6));
  opacity: 0;
  animation: auHeroParticleFloat var(--dur, 16s) ease-in var(--delay, 0s) infinite;
}

@keyframes auHeroParticleFloat {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  12% { opacity: .7; }
  85% { opacity: .35; }
  100% { transform: translateY(-115vh) translateX(var(--drift, 20px)); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .au-hero-particle { animation: none !important; }
}