/* ============================================================
   About Page — Component Styles
   Loaded on about.html only.
   Base design system (fonts, nav, footer, reset) from style.css.
   ============================================================ */

/* --- Hero --- */
.about-hero {
  padding: var(--sp-16) 0 var(--sp-20);
}

.about-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}

.about-hero__eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: var(--sp-4);
}

.about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: var(--sp-6);
}

.about-hero__subtitle {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--sp-8);
  max-width: 540px;
}

.about-hero__image {
  border-radius: 24px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 480px;
  margin-left: auto;
}

.about-hero__topmate {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 9999px;
  padding: var(--sp-2) var(--sp-4) var(--sp-2) var(--sp-2);
  transition: box-shadow 150ms, border-color 150ms;
}

.about-hero__topmate:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  border-color: var(--gray-300);
}

.about-hero__topmate img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
}

.about-hero__topmate-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-primary);
}

.about-hero__topmate-stats {
  font-size: var(--fs-xs);
  color: var(--text-light);
}

@media (max-width: 768px) {
  .about-hero__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }
  .about-hero__image {
    margin: 0 auto;
    max-width: 360px;
    order: -1;
  }
}

/* --- Timeline --- */
.about-timeline {
  position: relative;
  padding-left: 40px;
  max-width: 700px;
}

.about-timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}

.about-timeline__item {
  position: relative;
  margin-bottom: var(--sp-8);
}

.about-timeline__item:last-child { margin-bottom: 0; }

.about-timeline__dot {
  position: absolute;
  left: -40px;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.about-timeline__item--current .about-timeline__dot {
  border-color: var(--teal);
  background: var(--teal-light);
}

.about-timeline__item--current .about-timeline__dot::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
}

.about-timeline__date {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-1);
}

.about-timeline__role {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--navy);
  margin-bottom: var(--sp-2);
}

.about-timeline__desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.about-timeline__coda {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: var(--sp-10);
  max-width: 700px;
}

/* --- Credential cards --- */
.about-credentials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.about-credential {
  background: var(--white);
  border-radius: 16px;
  padding: var(--sp-6);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  border: 1px solid var(--gray-100);
}

.about-credential__icon {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-3);
}

.about-credential__title {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--navy);
  margin-bottom: var(--sp-2);
}

.about-credential__desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .about-credentials { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .about-credentials { grid-template-columns: 1fr; }
}

/* --- Belief cards --- */
.about-beliefs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.about-belief {
  background: var(--white);
  border-radius: 10px;
  padding: var(--sp-6) var(--sp-6) var(--sp-5);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  border: 1px solid rgba(13,148,136,0.12);
  position: relative;
  overflow: hidden;
}

.about-belief::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), rgba(13,148,136,0.3));
}

.about-belief__headline {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--navy);
  margin-bottom: var(--sp-3);
  line-height: 1.3;
}

.about-belief__body {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.75;
}

.about-belief__proof {
  display: inline-block;
  margin-top: var(--sp-3);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--teal);
  letter-spacing: 0.01em;
}

@media (max-width: 768px) {
  .about-beliefs { grid-template-columns: 1fr; }
}

/* --- Why-me cards --- */
.about-why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
}

.about-why-card {
  background: var(--white);
  border-radius: 16px;
  padding: var(--sp-8);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  border: 1px solid var(--gray-100);
}

.about-why-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--navy);
  margin-bottom: var(--sp-3);
}

.about-why-card__desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.about-why-cta {
  display: flex;
  gap: var(--sp-4);
  margin-top: var(--sp-10);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .about-why-grid { grid-template-columns: 1fr; }
}

/* --- PhD Admissions compact --- */
.about-phd-compact {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.about-phd-compact p {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--sp-8);
}

/* --- Newsletter --- */
.about-newsletter {
  text-align: center;
}

.about-newsletter__subtitle {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  margin-bottom: var(--sp-8);
}

/* --- Footer Topmate badge --- */
.about-footer-topmate {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
  text-decoration: none;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 9999px;
  padding: var(--sp-2) var(--sp-4) var(--sp-2) var(--sp-2);
  transition: background 150ms;
}

.about-footer-topmate:hover { background: rgba(255,255,255,0.1); }

.about-footer-topmate img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
}

.about-footer-topmate__title {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--white);
}

.about-footer-topmate__stats {
  font-size: var(--fs-xs);
  color: var(--gray-500);
}