/* About page specific styling.
   Shared layout tokens, callouts, typography, and section rhythm live in styles/site.css. */

.about-main {
  padding-bottom: 56px;
}

.about-hero-refactored {
  margin: 0;
}

.about-timeline {
  margin-top: 0;
}

#professional-arc {
  margin-top: 0;
}

.arc-timeline-wrapper {
  position: relative;
}

.arc-timeline-wrapper::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
  opacity: 0.9;
  z-index: 3;
}

.timeline-orb {
  position: absolute;
  left: -7px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #4f7cff, #1f3fa8);
  opacity: 0.9;
  z-index: 2;
}

.timeline-orb.orb-1,
.timeline-orb.orb-2,
.timeline-orb.orb-3 {
  transform: translateY(-50%);
}

.timeline-orb.orb-1 { top: var(--orb1, 0px); }
.timeline-orb.orb-2 { top: var(--orb2, 0px); }
.timeline-orb.orb-3 { top: var(--orb3, 0px); }

.about-philosophy {
  margin-top: 0;
}

.card-philosophy {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.card-philosophy:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.philosophy-card-title {
  margin: 0;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.1;
  color: var(--text-primary);
}

.philosophy-card-accent {
  width: 48px;
  height: 3px;
  background: var(--accent-blue);
  margin: 12px 0 28px 0;
}

.philosophy-stack {
  display: flex;
  flex-direction: column;
}

.philosophy-item {
  padding-bottom: 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
}

.philosophy-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.philosophy-item h3 {
  font-size: 24px;
  margin: 0 0 12px 0;
  color: var(--accent-blue);
}

.philosophy-item p {
  max-width: 760px;
  margin: 0 0 14px 0;
  color: var(--text-secondary);
}

.philosophy-insights-link-wrap {
  margin: 28px 0 0 0;
  text-align: right;
}

.philosophy-insights-link {
  font-size: 0.9rem;
  color: var(--accent-blue);
  text-decoration: none;
}

.philosophy-insights-link:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .card-philosophy {
    border-radius: 8px;
  }

  .philosophy-card-title {
    font-size: 28px;
  }

  .philosophy-item h3 {
    font-size: 22px;
  }
}

/* =====================================================
   EXECUTIVE BRIEFING - PROFESSIONAL ARC REFACTOR
   Asymmetric editorial layout aligned to site rhythm
   ===================================================== */

.arc-item {
  display: grid;
  grid-template-columns: 330px 1fr;
  column-gap: 48px;
  align-items: start;
  padding: 48px 0;
}

.arc-item:first-of-type {
  padding-top: 32px;
}

/* Sidebar Era Header */

.era-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  font-size: 19px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--accent-blue);
  line-height: 1.2;
  margin: 0;
}

.era-title {
  display: block;
  white-space: nowrap;
}

.era-sub {
  display: block;
  white-space: nowrap;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.025em;
  margin-top: 6px;
  color: var(--accent-blue);
  position: relative;
}

/* Add bracket styling via pseudo elements */
.era-sub::before {
  content: "[";
  margin-right: 4px;
}

.era-sub::after {
  content: "]";
  margin-left: 4px;
}

/* Narrative Column */

.arc-narrative {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.arc-item + .arc-item .arc-narrative {
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
}

.arc-narrative p {
  max-width: 680px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive Stack */

@media (max-width: 900px) {
  .arc-timeline-wrapper::before,
  .timeline-orb {
    display: none;
  }

  .arc-item {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 36px 0;
  }

  .era-header {
    margin-bottom: 8px;
  }

  .arc-narrative p {
    max-width: 100%;
  }
}