.about-hero {
  max-width: var(--max-width);
  margin: 0 auto;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 60px;
  padding-bottom: 56px;
}

.about-portrait {
  display: flex;
  justify-content: center;
  align-items: center;
}

.portrait-wrapper {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  border: 6px solid rgba(0, 184, 169, 0.4);
  box-shadow: var(--shadow-lg);
}

.about-meta {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: grid;
  gap: 12px;
}

.about-meta li {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--color-text-muted);
}

.about-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.timeline {
  background: rgba(255, 255, 255, 0.03);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.timeline-list {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 96px;
  display: grid;
  gap: 16px;
}

.timeline-item {
  background: #222322;
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.timeline-item header {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.timeline-period {
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.timeline-org {
  color: var(--color-text-muted);
}

.timeline-toggle {
  margin-top: 10px;
  align-self: flex-start;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent;
  color: var(--color-text-muted);
  border-radius: 999px;
  padding: 8px 14px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.timeline-toggle[aria-expanded="true"] {
  background: rgba(0, 184, 169, 0.2);
  color: var(--color-text);
}

.timeline-body {
  margin-top: 16px;
  display: none;
}

.timeline-body ul {
  margin: 0;
  padding-left: 18px;
}

.timeline-body li {
  margin-bottom: 8px;
}

.timeline-item.is-open .timeline-body {
  display: block;
}

.skills-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 32px;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.skill-item {
  background: #222322;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.skill-percent {
  font-weight: 600;
  color: var(--color-accent);
}

.skill-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

.skill-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, var(--color-accent), var(--color-accent-2));
  transition: width 1.1s ease-out;
}

.education-grid,
.project-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 96px;
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.education-card,
.project-card {
  background: #222322;
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.project-card img {
  border-radius: var(--radius-md);
  margin-bottom: 18px;
}

.project-content {
  display: grid;
  gap: 12px;
}