.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(17rem, 0.85fr);
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

.about-intro {
  display: grid;
  gap: var(--space-5);
}

.about-intro__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.about-intro__role {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.about-intro__lead {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  max-width: 42rem;
}

.about-intro__body {
  display: grid;
  gap: var(--space-4);
}

.about-intro__body p {
  margin: 0;
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.about-stat {
  padding: var(--space-4);
  border-top: 2px solid rgb(var(--accent-rgb) / 0.45);
  background: rgb(var(--surface-rgb) / max(0.4, var(--glass-min)));
}

.about-stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.about-stat__label {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.about-aside {
  display: grid;
  gap: var(--space-5);
  position: sticky;
  top: 6rem;
}

.about-portrait {
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 60% at 30% 20%, rgb(var(--accent-rgb) / 0.18), transparent 55%),
    var(--color-bg-secondary);
  aspect-ratio: 4 / 5;
}

.about-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
}

.about-panel {
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgb(var(--surface-rgb) / max(0.45, var(--glass-min)));
  display: grid;
  gap: var(--space-3);
}

.about-panel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.about-panel__row {
  display: grid;
  gap: 0.15rem;
}

.about-panel__row strong {
  font-size: var(--fs-sm);
  color: var(--color-text);
}

.about-panel__row span,
.about-panel__row a {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  word-break: break-word;
}

.about-panel__row a:hover {
  color: var(--color-primary);
}

.about-panel__actions {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.about-section {
  padding-block: clamp(3rem, 7vw, 5rem);
}

.about-section--alt {
  background: rgb(var(--surface-rgb) / max(0.35, var(--glass-min)));
  border-block: 1px solid var(--color-border);
}

.about-section__header {
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
  max-width: 40rem;
}

.about-section__header .eyebrow {
  margin-bottom: var(--space-3);
}

.about-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.about-edu-grid,
.about-honor-grid,
.about-why-grid {
  display: grid;
  gap: var(--space-4);
}

.about-edu-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.about-honor-grid,
.about-why-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.about-edu,
.about-honor,
.about-why {
  padding: var(--space-5);
  border-left: 2px solid rgb(var(--accent-rgb) / 0.45);
  background: rgb(var(--bg-rgb) / 0.35);
  display: grid;
  gap: var(--space-3);
}

.about-edu h3,
.about-honor h3,
.about-why h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.about-edu__field {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--color-text);
}

.about-edu__field span {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-right: 0.4rem;
}

.about-edu__meta,
.about-edu p,
.about-honor p,
.about-why p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
}

.about-highlights {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.about-highlights li {
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgb(var(--surface-rgb) / max(0.35, var(--glass-min)));
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  position: relative;
  padding-left: 1.75rem;
}

.about-highlights li::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 1.25rem;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--color-primary);
}

.about-lang {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.about-lang__item {
  padding: 0.65rem 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.about-lang__item strong {
  color: var(--color-text);
  margin-right: 0.35rem;
}

.about-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: end;
  gap: var(--space-6);
  padding-block: clamp(3.5rem, 8vw, 5.5rem);
}

.about-cta__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.about-cta__text {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 32rem;
}

.about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (max-width: 980px) {
  .about-layout {
    grid-template-columns: 1fr;
  }

  .about-aside {
    position: static;
    grid-template-columns: 0.9fr 1.1fr;
    align-items: stretch;
  }

  .about-portrait {
    aspect-ratio: 1;
  }
}

@media (max-width: 720px) {
  .about-aside,
  .about-edu-grid,
  .about-honor-grid,
  .about-why-grid,
  .about-highlights,
  .about-stats {
    grid-template-columns: 1fr;
  }

  .about-cta {
    align-items: start;
  }

  .about-cta__actions {
    width: 100%;
    flex-direction: column;
  }

  .about-cta__actions .btn {
    width: 100%;
  }
}

/* Abstract "stack" visual (replaces portrait) */
.about-visual { position: relative; margin: 0; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-soft); overflow: hidden; }
.about-visual__bar { display: flex; align-items: center; gap: 0.75rem; padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--color-border); font-family: var(--font-mono); font-size: 0.72rem; color: var(--color-text-muted); }
.about-visual__stack { list-style: none; margin: 0; padding: 1rem; display: grid; gap: 0.6rem;
  background-image: linear-gradient(rgb(var(--ink-rgb) / 0.04) 1px, transparent 1px), linear-gradient(90deg, rgb(var(--ink-rgb) / 0.04) 1px, transparent 1px); background-size: 22px 22px; }
.about-visual__stack li { position: relative; display: grid; gap: 0.15rem; padding: 0.8rem 0.9rem; border: 1px solid var(--color-border); border-radius: 0.65rem; background: var(--color-bg); }
.about-visual__stack li + li::before { content: ""; position: absolute; left: 1.4rem; top: -0.62rem; width: 1px; height: 0.6rem; background: rgb(var(--accent-rgb) / 0.55); }
.about-visual__stack li:nth-child(3) { border-color: rgb(var(--accent-rgb) / 0.45); box-shadow: 0 0 0 3px rgb(var(--accent-rgb) / 0.08); }
.about-visual__stack b { font-size: 0.9rem; font-weight: 600; color: var(--color-text); }
.about-visual__stack small { font-family: var(--font-mono); font-size: 0.68rem; color: var(--color-text-muted); }
.about-visual__mark { position: absolute; right: 0.9rem; top: 0.55rem; font-family: var(--font-display); font-weight: 700; font-size: 0.8rem; color: var(--color-primary); }

/* UX refresh */
.about-panel__chips { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.about-section__header--split { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.about-exp { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-4); }
.about-exp__item { display: grid; grid-template-columns: 12rem 1fr; gap: var(--space-5); padding: var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.about-exp__when { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--color-text-muted); padding-top: 0.3rem; }
.about-exp__role { margin: 0; font-family: var(--font-display); font-size: var(--fs-lg); font-weight: var(--fw-semibold); }
.about-exp__org { margin: var(--space-1) 0 var(--space-3); color: var(--color-primary); font-size: var(--fs-sm); font-weight: 500; }
.about-exp__points { margin: 0; padding-left: 1.1rem; display: grid; gap: var(--space-2); color: var(--color-text-muted); font-size: var(--fs-sm); line-height: var(--lh-relaxed); }
@media (max-width: 720px) { .about-exp__item { grid-template-columns: 1fr; gap: var(--space-2); } }
.about-certs { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr)); }
.about-cert { padding: var(--space-4) var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.about-cert__issuer { margin: 0; font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--color-primary); }
.about-cert__title { margin: var(--space-2) 0 var(--space-1); font-weight: var(--fw-semibold); line-height: var(--lh-tight); }
.about-cert__meta { margin: 0; font-size: var(--fs-xs); color: var(--color-text-muted); font-family: var(--font-mono); }