/* ========================================
   Hero Section
   ======================================== */
.hero-section {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.hero-content {
  flex: 1;
}

.hero-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-primary);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 48px;
  line-height: 1.1;
  color: var(--accent-secondary);
  margin-bottom: var(--space-3);
}

.hero-title strong {
  color: var(--accent-primary);
}

.hero-bio {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  max-width: 500px;
}

.hero-photo {
  width: 300px;
  height: 360px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: white;
}

.btn-primary:hover {
  background-color: #4a6dd4;
  color: white;
}

.btn-secondary {
  background-color: var(--accent-secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: #152a47;
  color: white;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-group {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* ========================================
   Cards
   ======================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
}

.card {
  background-color: var(--bg-surface);
  border-radius: 8px;
  padding: var(--space-4);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-2);
  color: var(--accent-primary);
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--accent-secondary);
}

.card-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================================
   Section Headings
   ======================================== */
.section-heading {
  margin-bottom: var(--space-5);
}

.section-heading h2 {
  font-family: var(--font-heading);
  font-size: 32px;
  margin-bottom: var(--space-2);
}

.section-divider {
  width: 60px;
  height: 3px;
  background-color: var(--accent-primary);
  margin-bottom: var(--space-3);
}

/* ========================================
   Publication Cards
   ======================================== */
.publication-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.publication-card {
  background-color: var(--bg-surface);
  border-radius: 8px;
  padding: var(--space-4);
  border-left: 4px solid var(--accent-primary);
}

.publication-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent-secondary);
  margin-bottom: var(--space-1);
}

.publication-title a {
  color: inherit;
  text-decoration: none;
}

.publication-title a:hover {
  color: var(--accent-primary);
}

.publication-meta {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.publication-meta .author-highlight {
  font-weight: 600;
  color: var(--accent-primary);
}

.publication-abstract {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border);
}

.publication-toggle {
  font-size: 12px;
  color: var(--accent-primary);
  cursor: pointer;
  margin-top: var(--space-1);
}

/* ========================================
   Timeline (CV Page)
   ======================================== */
.timeline {
  position: relative;
  padding-left: var(--space-5);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-5);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-5) + 4px);
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  border: 2px solid var(--bg-primary);
}

.timeline-date {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-primary);
  letter-spacing: 1px;
  margin-bottom: var(--space-1);
}

.timeline-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent-secondary);
  margin-bottom: var(--space-1);
}

.timeline-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.timeline-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.contact-icon {
  width: 24px;
  height: 24px;
  color: var(--accent-primary);
}

.contact-link {
  font-size: 16px;
  color: var(--text-primary);
}

.contact-link:hover {
  color: var(--accent-primary);
}

/* ========================================
   Focus States (Accessibility)
   ======================================== */
a:focus,
button:focus,
.btn:focus,
.theme-toggle:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 767px) {
  .hero-section {
    flex-direction: column-reverse;
    text-align: center;
  }

  .hero-photo {
    width: 200px;
    height: 240px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-bio {
    max-width: 100%;
  }

  .btn-group {
    justify-content: center;
  }

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

/* ========================================
   Wezen-Style Improvements
   ======================================== */

/* Hero section - two column layout with photo */
.hero-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
  min-height: 60vh;
}

.hero-content {
  order: 1;
}

.hero-image {
  order: 2;
  position: relative;
}

.hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(100%);
}

.hero-image-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--border) 100%);
  border-radius: 4px;
}

/* What I Do section */
.what-i-do {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}

.what-i-do h2 {
  font-family: var(--font-heading);
  font-size: 28px;
  margin-bottom: var(--space-5);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.service-item {
  display: flex;
  gap: var(--space-3);
}

.service-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border-radius: 4px;
  color: var(--accent-primary);
}

.service-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.service-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Responsive hero */
@media (max-width: 900px) {
  .hero-section {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  
  .hero-image {
    order: -1;
    max-width: 300px;
    margin: 0 auto;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
}