@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,600;1,400&family=Lora:wght@400;600&display=swap');

:root {
  --plum-900: #2e1f47;
  --plum-800: #3d2a5c;
  --purple-700: #5b3d99;
  --purple-600: #7c4fd6;
  --purple-500: #8f5fe8;
  --lavender-400: #a78bfa;
  --lavender-300: #c4b5fd;
  --lavender-100: #f1ecfd;
  --lavender-50: #f8f5fe;
  --ink: #2b2438;
  --ink-soft: #5a5268;
}

body {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  color: var(--ink);
}

h1, h2, h3, h4 {
  font-family: 'Lora', serif;
  font-weight: 600;
  color: var(--plum-900);
}

.navbar {
  background-color: var(--plum-900) !important;
}

.navbar-brand, .navbar .nav-link {
  color: var(--lavender-100) !important;
}

.navbar .nav-link:hover {
  color: #ffffff !important;
}

.navbar .nav-link.active {
  color: #ffffff !important;
  border-bottom: 2px solid var(--lavender-400);
}

/* ---- TOC sidebar (overrides bootstrap's hardcoded blue) ---- */

.sidebar nav[role="doc-toc"] ul > li > a.active,
.sidebar nav[role="doc-toc"] ul > li > ul > li > a.active {
  border-left-color: var(--purple-600) !important;
  color: var(--purple-600) !important;
}

.sidebar nav[role="doc-toc"] ul > li > a:hover,
.sidebar nav[role="doc-toc"] ul > li > ul > li > a:hover {
  color: var(--purple-600) !important;
}

a {
  color: var(--purple-600);
}

a:hover {
  color: var(--plum-800);
}

::selection {
  background: var(--lavender-300);
}

code {
  font-size: 0.875em;
  color: var(--purple-700);
  background-color: var(--lavender-50);
}

/* ---- Hero / homepage ---- */

.hero-text {
  padding: 2rem 0 1rem 0;
}

.profile-photo {
  border-radius: 50%;
  width: 180px;
  height: 180px;
  object-fit: cover;
  object-position: center 20%;
  border: 4px solid var(--lavender-400);
  box-shadow: 0 8px 24px rgba(124, 79, 214, 0.25);
  display: block;
  margin: 0 auto 1.5rem auto;
}

.hero {
  text-align: center;
  padding: 1rem 0 2.5rem 0;
}

.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--purple-600);
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 0.25rem;
}

.hero .tagline {
  font-size: 1.15rem;
  color: var(--ink-soft);
  font-weight: 400;
  margin-bottom: 1.25rem;
}

.hero .intro {
  max-width: 640px;
  margin: 0 auto;
  color: var(--ink);
  line-height: 1.65;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.3rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none !important;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.btn-pill.primary {
  background-color: var(--purple-600);
  color: #ffffff !important;
}

.btn-pill.primary:hover {
  background-color: var(--plum-800);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(124, 79, 214, 0.35);
}

.btn-pill.secondary {
  background-color: var(--lavender-100);
  color: var(--plum-800) !important;
}

.btn-pill.secondary:hover {
  background-color: var(--lavender-300);
  transform: translateY(-1px);
}

/* ---- Focus / research tags ---- */

.section-label {
  text-align: center;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--purple-600);
  margin: 3rem 0 1rem 0;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.tag {
  display: inline-block;
  white-space: nowrap;
  background-color: var(--lavender-50);
  border: 1px solid var(--lavender-300);
  color: var(--plum-800);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ---- Cards ---- */

.card-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.1rem;
  margin: 1.5rem 0 2.5rem 0;
}

.info-card {
  display: block;
  padding: 1.4rem 1.3rem;
  border-radius: 14px;
  background-color: var(--lavender-50);
  border: 1px solid var(--lavender-100);
  text-decoration: none !important;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  color: var(--ink) !important;
}

.info-card:hover {
  transform: translateY(-3px);
  border-color: var(--lavender-400);
  box-shadow: 0 10px 24px rgba(124, 79, 214, 0.18);
}

.info-card .card-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  display: block;
}

.info-card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.35rem 0;
  color: var(--plum-800);
}

.info-card p {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0;
}