/* About section revamp: layered cards, two-column layout, animated timeline */

.about {
  position: relative;
  padding: clamp(4rem, 9vw, 7.5rem) 0;
  overflow: hidden;
}

.about .container {
  position: relative;
  z-index: 2;
}

.about__grid {
  display: grid;
  gap: clamp(2rem, 4.5vw, 3.5rem);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: start;
}

.about__profile {
  grid-column: 1 / -1;
  display: grid;
  gap: clamp(1.4rem, 3vw, 2rem);
  align-content: start;
}

.about__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.9rem;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--glow);
}

.about__title {
  font-size: clamp(2rem, 4.1vw, 3rem);
  line-height: 1.1;
  margin: 0;
}

.about__summary {
  margin: 0;
  color: var(--muted);
  max-width: 62ch;
  font-size: clamp(1rem, 1.1vw, 1.1rem);
}

.about__details {
  display: grid;
  gap: clamp(1rem, 2vw, 1.4rem);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.about__detail-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(19, 22, 34, 0));
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  padding: 1.1rem 1.3rem;
  box-shadow: 0 10px 30px rgba(3, 4, 9, 0.55);
  backdrop-filter: blur(12px);
}

.about__detail-label {
  margin: 0 0 0.35rem;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}

.about__detail-value {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text);
}

.about__highlights {
  display: grid;
  gap: clamp(1rem, 2vw, 1.25rem);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.about__highlight-title {
  margin: 0 0 0.45rem;
  font-size: 1.1rem;
}

.about__highlight-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.about__cta-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.6rem 1.75rem;
  background: linear-gradient(140deg, rgba(255, 77, 28, 0.22), rgba(10, 12, 20, 0.75));
  border: 1px solid rgba(255, 77, 28, 0.35);
  border-radius: 20px;
  box-shadow: 0 20px 44px rgba(9, 9, 16, 0.55);
  backdrop-filter: blur(14px);
}

.about__cta-copy {
  display: grid;
  gap: 0.35rem;
  font-size: 1rem;
}

.about__cta-copy p {
  margin: 0;
  font-weight: 600;
}

.about__cta-copy span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

.about__timeline {
  grid-column: 1 / -1;
  display: grid;
  gap: clamp(1.8rem, 3.5vw, 2.6rem);
}

.about__timeline-group {
  display: grid;
  gap: 1.35rem;
}

.about__timeline-heading {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}

.about__timeline-list {
  position: relative;
  display: grid;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.about__timeline-list::before {
  content: "";
  position: absolute;
  top: 0.4rem;
  bottom: 0.4rem;
  left: 1.1rem;
  width: 2px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
}

.about__timeline-card {
  position: relative;
  padding: 1.6rem 1.8rem 1.6rem 3.75rem;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.05), rgba(8, 9, 16, 0.88));
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  box-shadow: 0 18px 40px rgba(6, 7, 14, 0.6);
  backdrop-filter: blur(12px);
  transition:
    transform 260ms var(--ease-out-quick),
    border-color 260ms var(--ease-out-quick),
    box-shadow 260ms var(--ease-out-quick);
  outline: none;
}

.about__timeline-card:hover,
.about__timeline-card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(123, 111, 255, 0.4);
  box-shadow: 0 20px 46px rgba(6, 7, 14, 0.72);
}

.about__timeline-card:focus-visible {
  box-shadow:
    0 0 0 3px rgba(123, 111, 255, 0.32),
    0 20px 46px rgba(6, 7, 14, 0.72);
}

.about__timeline-node {
  position: absolute;
  top: 1.65rem;
  left: 0.6rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(123, 111, 255, 0.9);
  background: rgba(3, 4, 12, 0.88);
  display: grid;
  place-items: center;
  transition: transform 260ms var(--ease-out-quick), border-color 260ms var(--ease-out-quick);
}

.about__timeline-node-inner {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 213, 107, 0.86) 0%, rgba(255, 77, 28, 0.5) 100%);
  transition: transform 300ms var(--ease-out-quick);
}

.about__timeline-card:hover .about__timeline-node,
.about__timeline-card:focus-visible .about__timeline-node {
  transform: scale(1.08);
  border-color: rgba(255, 213, 107, 0.85);
}

.about__timeline-card:hover .about__timeline-node-inner,
.about__timeline-card:focus-visible .about__timeline-node-inner {
  transform: rotate(180deg) scale(1.1);
}

.about__timeline-content {
  display: grid;
  gap: 0.55rem;
}

.about__timeline-period {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.68);
}

.about__timeline-title {
  margin: 0;
  font-size: 1.25rem;
}

.about__timeline-link {
  width: fit-content;
  font-size: 0.95rem;
  color: var(--glow);
  text-decoration: none;
  position: relative;
  padding-bottom: 0.1rem;
}

.about__timeline-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms var(--ease-out-quick);
}

.about__timeline-card:hover .about__timeline-link::after,
.about__timeline-card:focus-visible .about__timeline-link::after {
  transform: scaleX(1);
  transform-origin: left;
}

.about__timeline-subtitle {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.02rem;
}

.about__timeline-body {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.6;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-height 320ms var(--ease-smooth),
    opacity 220ms var(--ease-smooth);
}

.about__timeline-card:hover .about__timeline-body,
.about__timeline-card:focus-visible .about__timeline-body {
  max-height: 240px;
  opacity: 1;
}

@media (max-width: 1200px) {
  .about__grid {
    gap: clamp(2.2rem, 4.5vw, 3.2rem);
  }

  .about__summary {
    max-width: 58ch;
  }
}

@media (max-width: 1024px) {
  .about__grid {
    gap: clamp(2rem, 6vw, 3rem);
  }
}

@media (max-width: 768px) {
  .about {
    padding: clamp(3rem, 12vw, 4.5rem) 0;
  }

  .about__timeline-card {
    padding-left: 3.25rem;
  }

  .about__timeline-node {
    left: 0.4rem;
  }

  .about__timeline-list::before {
    left: 0.85rem;
  }
}

@media (min-width: 1024px) {
  .about__profile {
    grid-column: 1 / span 5;
  }

  .about__timeline {
    grid-column: 7 / span 6;
  }
}

@media (min-width: 1440px) {
  .about {
    padding: clamp(4.5rem, 8vw, 8.5rem) 0;
  }

  .about__grid {
    gap: clamp(3rem, 4.5vw, 4.5rem);
  }

  .about__summary {
    max-width: 68ch;
  }

  .about__timeline-card {
    padding: 1.75rem 2rem 1.75rem 4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .about__timeline-card,
  .about__timeline-node,
  .about__timeline-node-inner,
  .about__timeline-body,
  .about__badge {
    transition: none !important;
  }

  .about__timeline-body {
    max-height: none;
    opacity: 1;
  }
}