body {
  --bs-dark-rgb: 0, 0, 0;
  --bs-body-font-size: 0.8rem;
  min-height: 100vh;
}

.main-container {
  padding-top: 110px;
}

.card {
  margin-top: 15px;
  margin-bottom: 15px;
}

.profile-photo {
  max-width: 190px;
  width: 100%;
  border-radius: 20%;
  border: 3px solid white;
  opacity: 0.8;
  margin: 5px;
}

.navbar.fixed-top {
  border-width: 2px;
  top: 5px;
}

.navbar {
  text-align: center;
  --bs-navbar-padding-y: 0.45rem;
  --bs-navbar-brand-font-size: 0.9rem;
  --bs-nav-link-font-size: 0.9rem;
}

.navbar-nav {
  --bs-nav-link-padding-y: 0.4rem;
  --bs-nav-link-padding-x: 0.6rem;
}

.nav-link {
  display: inline-block;
  margin: 1px;
  border-radius: 5px;
}

.navbar-main-nav .nav-link:hover,
.navbar-main-nav .nav-link.active {
  background-color: black;
  color: white;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23000000' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.navbar-toggler {
  border-color: rgba(0, 0, 0, 0.3);
}

.sidebar-role-rotator {
  display: block;
  line-height: 1.25;
}

.sidebar-role-rotator-text {
  white-space: normal;
}

.sidebar-role-rotator-cursor {
  display: inline-block;
  width: 0.7ch;
  margin-left: 0.08rem;
  animation: sidebar-cursor-blink 0.8s steps(1, end) infinite;
}

@keyframes sidebar-cursor-blink {

  0%,
  45% {
    opacity: 1;
  }

  46%,
  100% {
    opacity: 0;
  }
}

.ukya-group-photo {
  max-width: 80%;
  border-radius: 20px;
}

.footer-logo {
  opacity: 0.7;
}

.amn-reveal-ready .card {
  opacity: 0;
}

.card.animate__animated {
  --animate-duration: 0.7s;
}

.sidebar-logo {
  max-height: 40px;
  margin: 5px;
}

/* ===== Experience timeline ===== */
.xp-timeline {
  --xp-col: 2rem;
  --xp-gap: 0.85rem;
  position: relative;
  margin: 0.25rem 0 1.5rem;
}

/* the vertical rail running down the marker column */
.xp-timeline::before {
  content: "";
  position: absolute;
  top: 0.6rem;
  bottom: 0.6rem;
  left: calc(var(--xp-col) / 2);
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(to bottom,
      rgba(var(--bs-primary-rgb), 0.9) 0%,
      rgba(var(--bs-primary-rgb), 0.45) 65%,
      rgba(var(--bs-primary-rgb), 0.05) 100%);
  border-radius: 2px;
}

.xp-group {
  margin-bottom: 1.25rem;
}

.xp-group-head,
.xp-item {
  display: grid;
  grid-template-columns: var(--xp-col) 1fr;
  column-gap: var(--xp-gap);
}

.xp-group-head {
  align-items: center;
  margin: 1.75rem 0 0.5rem;
}

.xp-group:first-child .xp-group-head {
  margin-top: 0.25rem;
}

.xp-group-title {
  margin: 0;
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.01em;
}

/* marker column keeps dots perfectly centred on the rail */
.xp-marker {
  position: relative;
  display: flex;
  justify-content: center;
}

.xp-group-head .xp-marker {
  align-items: center;
}

.xp-item .xp-marker {
  align-items: flex-start;
  padding-top: 1.55rem;
}

/* large glowing node for each company / era */
.xp-node {
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  background: var(--bs-primary);
  box-shadow: 0 0 0 4px rgba(var(--bs-primary-rgb), 0.16),
    0 0 14px 2px rgba(var(--bs-primary-rgb), 0.5);
}

/* hollow ring dot for each role */
.xp-dot {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: var(--bs-body-bg);
  border: 2px solid var(--bs-primary);
  box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.1);
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

/* timeline cards (override the global .card spacing inside the rail) */
.xp-card {
  margin-top: 0;
  margin-bottom: 1rem;
  width: 100%;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.7rem;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.xp-card:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--bs-primary-rgb), 0.6);
  box-shadow: 0 12px 30px -14px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(var(--bs-primary-rgb), 0.25);
}

.xp-item:hover .xp-dot {
  background: var(--bs-primary);
  box-shadow: 0 0 0 4px rgba(var(--bs-primary-rgb), 0.18),
    0 0 12px rgba(var(--bs-primary-rgb), 0.55);
  transform: scale(1.08);
}

/* role title + year pill row */
.xp-role-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.3rem 0.75rem;
  margin-bottom: 0.35rem;
}

.xp-role-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
}

.xp-year {
  flex: 0 0 auto;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
  color: var(--bs-primary);
  background: rgba(var(--bs-primary-rgb), 0.12);
  border: 1px solid rgba(var(--bs-primary-rgb), 0.35);
  border-radius: 999px;
  padding: 0.12rem 0.6rem;
}

.xp-place {
  display: flex;
  align-items: center;
  gap: 0.32rem;
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  font-weight: 500;
  opacity: 0.72;
}

.xp-place-icon {
  width: 0.82rem;
  height: 0.82rem;
  flex: 0 0 auto;
  color: var(--bs-primary);
}

.xp-body {
  margin: 0;
}

.xp-list {
  margin: 0;
  padding-left: 1.1rem;
}

.xp-list li + li {
  margin-top: 0.45rem;
}

.xp-btn {
  margin-top: 0.85rem;
}

/* a media figure inside a timeline card (e.g. the PhD group photo) */
.xp-figure {
  margin: 0.35rem 0 0.85rem;
}

.xp-figure img {
  max-height: 240px;
  max-width: 100%;
  width: auto;
}

/* a row of action buttons inside a timeline card */
.xp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.xp-actions .btn {
  margin: 0;
}

/* certifications */
.xp-cert-heading {
  margin-top: 2.75rem;
  font-weight: 700;
}

.xp-certs {
  margin-top: 0.5rem;
}

.xp-cert {
  border: 1px solid var(--bs-border-color);
  border-top: 3px solid var(--bs-primary);
  border-radius: 0.7rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.xp-cert:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -14px rgba(0, 0, 0, 0.6);
}

.xp-cert-meta {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 500;
  opacity: 0.72;
}

@media (max-width: 575.98px) {
  .xp-timeline {
    --xp-col: 1.55rem;
    --xp-gap: 0.65rem;
  }

  .xp-group-title {
    font-size: 1.2rem;
  }

  .xp-node {
    width: 0.95rem;
    height: 0.95rem;
  }
}

/* respect reduced-motion: no lift/scale transforms */
@media (prefers-reduced-motion: reduce) {

  .xp-card,
  .xp-cert,
  .xp-dot {
    transition: none;
  }

  .xp-card:hover,
  .xp-cert:hover,
  .xp-item:hover .xp-dot {
    transform: none;
  }
}