/* ──────────────────────────────────────────
   Fonts & Reset
────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=Inter:wght@300;400;500;600&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ──────────────────────────────────────────
   Tokens
────────────────────────────────────────── */
:root {
  --bg:            #FDFCFF;
  --bg-card:       #F2EDF9;
  --bg-card-hover: #EAE2F4;
  --lavender:      #9B84C8;
  --lavender-dark: #6B5594;
  --lavender-pale: #E4DCF2;
  --text:          #2C2438;
  --text-muted:    #7B6E8A;
  --border:        #DDD5ED;
  --radius-card:   16px;
  --radius-pill:   50px;
  --max-w:         780px;
  --nav-h:         68px;
}

/* ──────────────────────────────────────────
   Base
────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'DM Serif Display', serif;
  line-height: 1.2;
  color: var(--text);
}

a {
  color: var(--lavender-dark);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

/* ──────────────────────────────────────────
   Navigation
────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253, 252, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.nav-inner {
  width: 100%;
  max-width: calc(var(--max-w) + 80px);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-name {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem;
  color: var(--text);
  white-space: nowrap;
  text-decoration: none;
}
.nav-name:hover { text-decoration: none; color: var(--lavender-dark); }

.nav-links {
  display: flex;
  gap: 6px;
  list-style: none;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
}

.nav-links a:hover {
  background: var(--lavender-pale);
  color: var(--lavender-dark);
  text-decoration: none;
}

.nav-links a.active {
  background: var(--lavender);
  color: #fff;
}

/* ──────────────────────────────────────────
   Page wrapper
────────────────────────────────────────── */
.page {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 64px 40px 96px;
}

/* ──────────────────────────────────────────
   Section titles
────────────────────────────────────────── */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lavender);
  margin-bottom: 10px;
}

.page-title {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

.page-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 48px;
  max-width: 560px;
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* ──────────────────────────────────────────
   Buttons
────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--lavender);
  color: #fff;
  border: none;
}
.btn-primary:hover {
  background: var(--lavender-dark);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(107, 85, 148, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--lavender-dark);
  border: 1.5px solid var(--lavender);
}
.btn-outline:hover {
  background: var(--lavender-pale);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(107, 85, 148, 0.12);
}

/* ──────────────────────────────────────────
   Cards
────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 28px 32px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  transition: background 0.2s, box-shadow 0.2s;
}

.card:hover {
  background: var(--bg-card-hover);
  box-shadow: 0 6px 24px rgba(107, 85, 148, 0.09);
}

.card-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.card-meta {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lavender);
  margin-bottom: 8px;
}

.card-body {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  background: var(--lavender-pale);
  color: var(--lavender-dark);
}

/* ──────────────────────────────────────────
   Divider
────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* ──────────────────────────────────────────
   About / Hero
────────────────────────────────────────── */
.about-hero {
  display: flex;
  align-items: flex-start;
  gap: 48px;
  margin-bottom: 56px;
}

.about-avatar {
  flex-shrink: 0;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: var(--lavender-pale);
  border: 3px solid var(--lavender);
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lavender);
  font-size: 3rem;
  overflow: hidden;
}

.about-avatar-placeholder {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: var(--lavender-pale);
  border: 3px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-avatar-placeholder svg {
  width: 64px;
  height: 64px;
  color: var(--lavender);
  fill: var(--lavender);
  opacity: 0.5;
}

.about-text h1 {
  font-size: 2.6rem;
  margin-bottom: 4px;
}

.about-role {
  font-size: 1rem;
  color: var(--lavender-dark);
  font-weight: 500;
  margin-bottom: 4px;
}

.about-institution {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.about-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ──────────────────────────────────────────
   CV
────────────────────────────────────────── */
.cv-section {
  margin-bottom: 48px;
}

.cv-entry {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 0 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.cv-year {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-top: 2px;
}

.cv-entry-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.cv-entry-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ──────────────────────────────────────────
   Teaching
────────────────────────────────────────── */
.course-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.course-name {
  font-weight: 500;
  font-size: 0.95rem;
}

.course-detail {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ──────────────────────────────────────────
   Contact
────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.contact-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px 28px;
}

.contact-item-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lavender);
  margin-bottom: 6px;
}

.contact-item-value {
  font-size: 0.95rem;
  color: var(--text);
  word-break: break-all;
}

/* ──────────────────────────────────────────
   Responsive
────────────────────────────────────────── */
@media (max-width: 640px) {
  .page { padding: 40px 24px 72px; }

  .site-nav { height: auto; padding: 10px 0; }

  .nav-inner {
    padding: 0 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .about-hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 28px;
  }

  .about-links { justify-content: center; }

  .about-text h1 { font-size: 2rem; }

  .cv-entry {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .contact-grid { grid-template-columns: 1fr; }

  .course-row { flex-direction: column; gap: 4px; }
}