/* Pangenome Research Observatory - Design System
   Theme: Research Observatory (Dark)
   Aesthetic: Refined, precise, scientific
*/

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */

:root {
  /* Typography */
  --font-display: 'Newsreader', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Surface colors - Dark theme */
  --surface-base: #0d1117;
  --surface-raised: #161b22;
  --surface-overlay: #21262d;
  --surface-border: #30363d;
  --surface-border-light: #484f58;

  /* Text colors */
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-tertiary: #6e7681;
  --text-link: #58a6ff;
  --text-link-hover: #79b8ff;

  /* Accent - Cyan/Electric Blue */
  --accent-primary: #39d4e6;
  --accent-primary-muted: #1a6b75;
  --accent-primary-bg: rgba(57, 212, 230, 0.1);
  --accent-secondary: #f0883e;
  --accent-secondary-bg: rgba(240, 136, 62, 0.1);

  /* Data visualization palette */
  --viz-core: #39d4e6;
  --viz-auxiliary: #a371f7;
  --viz-novel: #f0883e;
  --viz-positive: #3fb950;
  --viz-negative: #f85149;

  /* Status colors */
  --status-completed: #3fb950;
  --status-completed-bg: rgba(63, 185, 80, 0.15);
  --status-in-progress: #58a6ff;
  --status-in-progress-bg: rgba(88, 166, 255, 0.15);
  --status-proposed: #8b949e;
  --status-proposed-bg: rgba(139, 148, 158, 0.15);

  /* Priority colors */
  --priority-high: #f85149;
  --priority-high-bg: rgba(248, 81, 73, 0.15);
  --priority-medium: #f0883e;
  --priority-medium-bg: rgba(240, 136, 62, 0.15);
  --priority-low: #3fb950;
  --priority-low-bg: rgba(63, 185, 80, 0.15);

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(57, 212, 230, 0.15);

  /* Layout */
  --max-width: 1200px;
  --header-height: 64px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--surface-base) !important;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Subtle vignette background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
  pointer-events: none;
  z-index: -1;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-top: 0;
}

h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
  margin-top: 0;
}

h1 { font-size: 3rem; margin-bottom: var(--space-6); }
h2 { font-size: 2rem; margin-bottom: var(--space-5); }
h3 { font-size: 1.5rem; margin-bottom: var(--space-4); }
h4 { font-size: 1.25rem; margin-bottom: var(--space-3); }

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--text-link-hover);
}

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-raised);
  border-bottom: 1px solid var(--surface-border);
  backdrop-filter: blur(8px);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.125rem;
}

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

.logo-kbase {
  height: 24px;
  width: 24px;
  border-radius: 50%;
}

.logo-separator {
  color: var(--text-tertiary);
  font-weight: 300;
}

.logo-icon {
  color: var(--accent-primary);
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-primary);
}

/* Dropdown menu */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--surface-overlay);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.15s ease;
  list-style: none;
  box-shadow: var(--shadow-lg);
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li a {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--text-secondary);
  border-bottom: none;
}

.dropdown-menu li a:hover {
  background: var(--surface-raised);
  color: var(--text-primary);
}

/* Auth widget */
.nav-auth {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: var(--space-4);
}

.nav-auth-user a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  white-space: nowrap;
}

.nav-auth-user a:hover {
  color: var(--text-primary);
}

.orcid-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  vertical-align: middle;
}

.btn-sm {
  font-size: 0.8rem;
  padding: var(--space-1) var(--space-3);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--surface-border);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.15s ease;
  white-space: nowrap;
}

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

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.15s ease;
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-12) var(--space-6);
}

.page-header {
  margin-bottom: var(--space-12);
}

.page-title {
  margin-bottom: var(--space-3);
}

.page-description {
  font-size: 1.125rem;
  max-width: 700px;
}

/* ============================================
   Sort Controls
   ============================================ */

.sort-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.sort-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-right: var(--space-1);
}

.sort-option {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.sort-option:hover {
  color: var(--text-primary);
  background: var(--surface-overlay);
  border-color: var(--surface-border);
}

.sort-option.active {
  color: var(--accent-primary);
  background: var(--accent-primary-bg);
  border-color: var(--accent-primary-muted);
}

.sort-arrow {
  font-size: 0.6em;
  margin-left: 2px;
}

.search-input {
  margin-left: auto;
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--surface-raised);
  color: var(--text-primary);
  min-width: 200px;
  transition: border-color 0.15s ease;
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary-muted);
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--surface-raised);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  border-color: var(--accent-primary-muted);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

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

.card-title a {
  color: var(--text-primary);
}

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

.card-meta {
  display: flex;
  gap: var(--space-4);
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.card-content {
  color: var(--text-secondary);
}

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ============================================
   Badges
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.badge-completed {
  background: var(--status-completed-bg);
  color: var(--status-completed);
}

.badge-in-progress {
  background: var(--status-in-progress-bg);
  color: var(--status-in-progress);
}

.badge-proposed {
  background: var(--status-proposed-bg);
  color: var(--status-proposed);
}

.badge-high {
  background: var(--priority-high-bg);
  color: var(--priority-high);
}

.badge-medium {
  background: var(--priority-medium-bg);
  color: var(--priority-medium);
}

.badge-low {
  background: var(--priority-low-bg);
  color: var(--priority-low);
}

.badge-project {
  background: var(--accent-primary-bg);
  color: var(--accent-primary);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  padding: var(--space-3) var(--space-5);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: #4de0f0;
  color: var(--surface-base);
}

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

.btn-secondary:hover {
  border-color: var(--accent-primary-muted);
  background: var(--accent-primary-bg);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  padding: var(--space-16) 0;
  position: relative;
}

.hero-content {
  max-width: 600px;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

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

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Stats overlay */
.hero-stats {
  position: absolute;
  top: var(--space-12);
  right: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stat-card {
  background: var(--surface-raised);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.stat-card:hover {
  border-color: var(--accent-primary-muted);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  color: var(--accent-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

/* ============================================
   Grid Layouts
   ============================================ */

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   Section
   ============================================ */

.section {
  margin-bottom: var(--space-16);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.section-title {
  margin: 0;
}

/* ============================================
   Code & Pre
   ============================================ */

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--surface-overlay);
  color: var(--accent-primary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

pre {
  background: var(--surface-overlay);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  overflow-x: auto;
  margin: var(--space-4) 0;
}

pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

/* ============================================
   Tables
   ============================================ */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th,
.data-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--surface-border);
}

.data-table th {
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--surface-overlay);
}

.data-table tbody tr:hover {
  background: var(--surface-raised);
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background: var(--surface-raised);
  border-top: 1px solid var(--surface-border);
  margin-top: auto;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-12) var(--space-6);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
}

.footer-section h4 {
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.footer-description {
  color: var(--text-secondary);
  max-width: 400px;
}

.footer-stats,
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-stats li,
.footer-links li {
  padding: var(--space-1) 0;
  color: var(--text-secondary);
}

.footer-stats .stat-value {
  font-size: 1rem;
  font-family: var(--font-body);
  font-weight: 600;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  border-top: 1px solid var(--surface-border);
  padding: var(--space-4) var(--space-6);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
  .hero-stats {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: var(--space-8);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--surface-raised);
    border-bottom: 1px solid var(--surface-border);
    flex-direction: column;
    padding: var(--space-4);
    gap: 0;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: var(--space-3) var(--space-4);
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: var(--space-4);
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-container {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Utility Classes
   ============================================ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-small { font-size: 0.875rem; }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }

/* ============================================
   Markdown Content Styling
   ============================================ */

/* ============================================
   Contributors
   ============================================ */

.contributors-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contributor-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: var(--surface-raised);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
}

.contributor-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.contributor-name {
  font-weight: 600;
  color: var(--text-primary);
}

.contributor-affiliation {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.contributor-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.contributor-roles {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.orcid-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-link);
}

.orcid-link:hover {
  color: var(--text-link-hover);
}

.orcid-link img {
  flex-shrink: 0;
}

/* Community page */
.community-stats {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.community-stat {
  background: var(--surface-raised);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  text-align: center;
}

.community-stat .stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  color: var(--accent-primary);
  line-height: 1;
}

.community-stat .stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

.contributor-grid-card {
  background: var(--surface-raised);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.contributor-grid-card:hover {
  border-color: var(--accent-primary-muted);
}

.contributor-projects {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

@media (max-width: 768px) {
  .contributor-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .community-stats {
    flex-direction: column;
  }
}

/* ============================================
   Markdown Content Styling
   ============================================ */

.markdown-content {
  line-height: 1.7;
  color: var(--text-primary);
}

.markdown-content p {
  margin-bottom: var(--space-4);
}

.markdown-content p:last-child {
  margin-bottom: 0;
}

.markdown-content ul,
.markdown-content ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.markdown-content li {
  margin-bottom: var(--space-2);
}

.markdown-content li:last-child {
  margin-bottom: 0;
}

.markdown-content code {
  background: var(--surface-overlay);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--accent-primary);
}

.markdown-content pre {
  background: var(--surface-overlay);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--space-4);
}

.markdown-content pre code {
  background: none;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--text-primary);
}

.markdown-content strong {
  font-weight: 600;
  color: var(--text-primary);
}

.markdown-content em {
  font-style: italic;
}

.markdown-content a {
  color: var(--text-link);
  text-decoration: none;
}

.markdown-content a:hover {
  text-decoration: underline;
}

.markdown-content img {
    max-width: min(600px, 100%);
    height: auto;
    display: block;
    border-radius: var(--radius-sm);
    margin: var(--space-4) 0;
    cursor: pointer;
    transition: opacity 0.15s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.markdown-content img:hover {
    opacity: 0.85;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.markdown-content blockquote {
  border-left: 4px solid var(--accent-primary);
  padding-left: var(--space-4);
  margin: var(--space-4) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* ============================================
   Anchor Links on Headings
   ============================================ */

.section h2[id] {
    position: relative;
    cursor: pointer;
}

.section h2[id]:hover::after {
    content: " #";
    color: var(--accent-primary-muted);
    font-weight: 400;
    font-size: 0.8em;
}

/* ============================================
   Team / About Page
   ============================================ */

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.team-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
}

.team-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.avatar-initials {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--accent-primary-muted);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.25rem;
}

.pi-card {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-6);
}

.pi-avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.pi-avatar-initials {
    width: 96px;
    height: 96px;
    font-size: 1.5rem;
}

@media (max-width: 900px) {
    .team-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .team-grid { grid-template-columns: 1fr; }
    .pi-card { flex-direction: column; text-align: center; }
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: var(--space-3);
  margin-top: var(--space-6);
  color: var(--text-primary);
}

.markdown-content h1:first-child,
.markdown-content h2:first-child,
.markdown-content h3:first-child,
.markdown-content h4:first-child {
  margin-top: 0;
}

/* ============================================
   Review Styles
   ============================================ */

.review-banner {
  display: flex;
  align-items: center;
  background: var(--surface-overlay);
  border-left: 4px solid var(--accent-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-6);
}

.review-ai-label {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--accent-secondary-bg);
  color: var(--accent-secondary);
}

.review-card {
  background: var(--surface-raised);
  border: 1px solid var(--surface-border);
  border-left: 4px solid var(--accent-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
}

.review-card:hover {
  border-color: var(--surface-border-light);
  border-left-color: var(--accent-secondary);
}

.badge-reviewed {
  background: var(--status-completed-bg);
  color: var(--status-completed);
}

.badge-needs-re-review {
  background: var(--accent-secondary-bg);
  color: var(--accent-secondary);
}

.markdown-content table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: var(--space-4);
}

.markdown-content th,
.markdown-content td {
  border: 1px solid var(--surface-border);
  padding: var(--space-2) var(--space-3);
  text-align: left;
}

.markdown-content th {
  background: var(--surface-overlay);
  font-weight: 600;
}

/* ============================================
   Lightbox
   ============================================ */

.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-overlay img {
  max-width: calc(100vw - 64px);
  max-height: calc(100vh - 64px);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.lightbox-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  padding: var(--space-2);
  opacity: 0.7;
  transition: opacity 0.15s ease;
}

.lightbox-close:hover {
  opacity: 1;
}

.lightbox-trigger {
  cursor: pointer;
}

/* Collapsible section toggle */
.collapse-toggle {
  background: none;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.7rem;
  padding: 2px 6px;
  line-height: 1;
  transition: color 0.15s ease, border-color 0.15s ease, transform 0.2s ease;
}

.collapse-toggle:hover {
  color: var(--text-primary);
  border-color: var(--surface-border-light);
}

.collapse-toggle.collapsed {
  transform: rotate(180deg);
}

.collapsible-section.collapsed > *:not(h3):not(h4):not(h5) {
  display: none;
}

.collapsible-section.collapsed > h3,
.collapsible-section.collapsed > h4,
.collapsible-section.collapsed > h5 {
  margin-bottom: var(--space-1);
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--surface-border);
  cursor: default;
}