/* =============================================================
   ABOUT — bio grid, quick facts, skills, principles, beyond
   ============================================================= */

/* ---------- Bio + quick facts ---------- */
.bio__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-10);
  align-items: start;
}

.bio__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.bio__content .section__title {
  margin-bottom: var(--space-2);
}

.bio__content p {
  max-width: 68ch;
}

.bio__facts {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-5));
}

.quick-facts {
  padding: var(--space-6);
}

.quick-facts__list {
  margin-top: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
}

.quick-facts__list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  color: var(--color-cyan);
}

.quick-facts__list li > div {
  display: flex;
  flex-direction: column;
}

.quick-facts__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.quick-facts__value {
  margin-top: 2px;
  color: var(--color-text);
  font-size: var(--fs-body-s);
  line-height: var(--lh-snug);
}

@media (max-width: 900px) {
  .bio__grid {
    grid-template-columns: 1fr;
    gap: var(--space-7);
  }
  .bio__facts {
    position: static;
  }
}

/* ---------- Skills ---------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}

.skill-group {
  padding: var(--space-6);
}

.skill-group__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-display-s);
  margin-bottom: var(--space-5);
}

.skill-group__index {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-s);
  color: var(--color-cyan);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-s);
  padding: 2px var(--space-2);
}

/* ---------- Working principles ---------- */
.principles__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.principle-card {
  position: relative;
}

.principle-card__index {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-s);
  color: var(--color-text-dim);
}

.principle-card__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-m);
  background: var(--color-cyan-dim);
  color: var(--color-cyan);
  margin-bottom: var(--space-4);
}

.principle-card h3 {
  font-size: var(--fs-display-s);
  margin-bottom: var(--space-2);
  padding-right: var(--space-6);
}

@media (max-width: 1100px) {
  .principles__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .principles__grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Beyond engineering ---------- */
.beyond__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.beyond-card {
  align-items: center;
  text-align: center;
}

.beyond-card__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

.beyond-card__icon.tag--cyan {
  color: var(--color-cyan);
  border-color: rgba(46, 230, 214, 0.3);
  background: var(--color-cyan-dim);
}

.beyond-card__icon.tag--amber {
  color: var(--color-amber);
  border-color: rgba(255, 180, 84, 0.3);
  background: var(--color-amber-dim);
}

.beyond-card__icon.tag--violet {
  color: var(--color-violet);
  border-color: rgba(180, 139, 255, 0.3);
  background: var(--color-violet-dim);
}

.beyond-card h3 {
  font-size: var(--fs-body-l);
  margin-bottom: var(--space-2);
}

.beyond-card p {
  font-size: var(--fs-body-s);
}

@media (max-width: 1100px) {
  .beyond__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .beyond__grid {
    grid-template-columns: 1fr;
  }
}