/* ============================================================
   ABOUT.CSS — About Us page specific styles
   ============================================================ */

/* ── ABOUT HERO ───────────────────────────────────────────── */
.about-hero {
  position: relative;
  height: 100vh;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 5vw;
  overflow: hidden;
}
/* Gradient bottom fade instead of hard border */
.about-hero::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 25vh;
  background: linear-gradient(to bottom, transparent 0%, var(--bg) 100%);
  pointer-events: none;
  z-index: 1;
}

.about-hero-heading {
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 10vw, 12rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-out) 0.1s, transform 0.9s var(--ease-out) 0.1s;
}
.about-loaded .about-hero-heading { opacity: 1; transform: translateY(0); }

.about-hero-sub {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.3vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 300;
  max-width: 52ch;
  opacity: 0;
  transition: opacity 0.7s ease 0.35s;
}
.about-loaded .about-hero-sub { opacity: 1; }

/* Side rule — subtle, fades at top and bottom */
.about-hero::after {
  content: '';
  position: absolute;
  right: 8vw;
  top: 15%;
  bottom: 30%;
  width: 1px;
  background: linear-gradient(to bottom, transparent 0%, var(--border) 20%, var(--border) 70%, transparent 100%);
  opacity: 0.5;
}

/* ── ABOUT SECTIONS ───────────────────────────────────────── */
.about-section {
  position: relative;
  padding: clamp(4rem, 8vh, 8rem) 5vw;
}
/* Gradient separator instead of hard border */
.about-section::after {
  content: '';
  position: absolute;
  bottom: 0; left: 5vw; right: 5vw;
  height: 1px;
  background: linear-gradient(to right, transparent 0%, var(--border) 20%, var(--border) 80%, transparent 100%);
  opacity: 0.4;
}

/* Every about section can accept align classes */
.about-section.align-left {
  display: flex;
  align-items: flex-start;
}
.about-section.align-left .about-content {
  max-width: 48ch;
}

/* ── MISSION ──────────────────────────────────────────────── */
.about-mission .section-heading { margin-bottom: 1.5rem; }
.about-mission .section-body + .section-body {
  margin-top: 1rem;
}

/* ── PHILOSOPHY ───────────────────────────────────────────── */
.about-philosophy {
  background: var(--bg-surface);
}
.about-philosophy .pull-quote {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 2rem;
  max-width: 24ch;
}
.about-philosophy .pull-quote em {
  color: var(--accent);
  font-style: normal;
}

/* ── DIFFERENCE GRID ──────────────────────────────────────── */
.about-difference {
  background: var(--bg);
}
.difference-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  max-width: 800px;
  margin-top: 3rem;
}
.difference-col {
  padding: 2.5rem;
}
.difference-col + .difference-col {
  border-left: 1px solid var(--border);
}
.difference-col-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: block;
}
.difference-col:first-child .difference-col-label { color: var(--text-muted); }
.difference-col:last-child  .difference-col-label { color: var(--accent); }

.difference-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.difference-list li {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 300;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.difference-col:first-child .difference-list li {
  color: var(--text-muted);
  text-decoration: line-through;
  text-decoration-color: rgba(74, 74, 72, 0.5);
}
.difference-col:last-child .difference-list li {
  color: var(--text-secondary);
}
.difference-col:last-child .difference-list li::before {
  content: '→';
  color: var(--accent);
  font-size: 0.7rem;
  font-family: var(--font-mono);
  flex-shrink: 0;
}

/* ── WHO WE SERVE ─────────────────────────────────────────── */
.about-serve {
  background: var(--bg);
}
.serve-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 2.5rem;
}
.serve-item {
  background: var(--bg);
  padding: 1.8rem;
  transition: background var(--transition-fast);
}
.serve-item:hover { background: var(--bg-surface); }
.serve-item-label {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  display: block;
  margin-bottom: 0.4rem;
}
.serve-item:hover .serve-item-label { color: var(--accent); }
.serve-item-desc {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.55;
}

/* ── SYSTEMS GRID ─────────────────────────────────────────── */
.about-systems {
  background: var(--bg-surface);
}
.systems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 3rem;
}
.system-item {
  background: var(--bg-surface);
  padding: 2rem 1.8rem;
  transition: background var(--transition-fast);
}
.system-item:hover { background: var(--bg); }
.system-item a { display: block; height: 100%; }
.system-item-num {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.6rem;
}
.system-item-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
  display: block;
}
.system-item:hover .system-item-name { color: var(--accent); }
.system-item-desc {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.5;
}
.system-item-coming {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--text-muted);
  padding: 0.2rem 0.6rem;
  display: inline-block;
  margin-top: 0.6rem;
}

/* Layer 1 badge — Front Desk */
.system-item-layer {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(124, 255, 168, 0.3);
  padding: 0.2rem 0.6rem;
  display: inline-block;
  margin-top: 0.6rem;
}

/* Additional infrastructure divider row */
.systems-additional-divider {
  grid-column: 1 / -1;
  background: var(--bg-surface);
  padding: 0.75rem 1.8rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.systems-additional-divider::before,
.systems-additional-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.systems-additional-divider span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ── ABOUT CTA ────────────────────────────────────────────── */
.about-cta-section {
  padding: clamp(4rem, 8vh, 8rem) 5vw;
  background: var(--bg);
}
.about-cta-section .section-heading {
  font-size: clamp(3rem, 6vw, 7rem);
  margin-bottom: 0.5rem;
}
.about-cta-section .section-body {
  margin-bottom: 0;
}

/* ── MOBILE ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .about-hero-heading { font-size: clamp(3.5rem, 14vw, 6rem); }
  .about-hero::after { display: none; }
  .difference-grid { grid-template-columns: 1fr; }
  .difference-col + .difference-col { border-left: none; border-top: 1px solid var(--border); }
  .systems-grid { grid-template-columns: 1fr 1fr; }
  .serve-grid { grid-template-columns: 1fr 1fr; }
  .about-section.align-left { padding-left: 6vw; padding-right: 6vw; }
  .about-section.align-left .about-content { max-width: 100%; }
}