/* ========================================
   HIE Lab Website — style.css
   ======================================== */

/* 1. CSS Custom Properties */
:root {
  --colour-dark-purple: #2E2A6A;
  --colour-teal: #43C4D9;
  --colour-pink: #EE447F;
  --colour-lavender: #8670B2;
  --colour-yellow: #FEC415;
  --colour-white: #FFFFFF;
  --colour-light-grey: #F5F5F7;
  --colour-dark-text: #1A1A2E;
  --colour-body-text: #333340;
  --colour-muted: #6B6B80;

  --font-heading: 'Ubuntu Bold', 'Ubuntu', sans-serif;
  --font-body: 'Poppins', sans-serif;

  --nav-height: 72px;
  --container-width: 1100px;
  --border-radius: 8px;
  --transition: 0.3s ease;
}

/* 2. Reset / Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--colour-body-text);
  background: var(--colour-white);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--colour-teal);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--colour-pink);
}

ul, ol {
  list-style: none;
}

/* 3. Typography */
@font-face {
  font-family: 'Ubuntu Bold';
  src: url('assets/fonts/Ubuntu-B.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('assets/fonts/Poppins-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--colour-dark-purple);
  line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.4rem; margin-bottom: 0.5rem; }
h4 { font-size: 1.1rem; }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 4. Navigation */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: var(--colour-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  z-index: 1000;
  transition: box-shadow var(--transition);
}

#navbar.scrolled {
  box-shadow: 0 2px 12px rgba(46, 42, 106, 0.1);
}

.nav-logo img {
  height: 44px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-links a {
  color: var(--colour-dark-purple);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: var(--border-radius);
  transition: background var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--colour-dark-purple);
  color: var(--colour-white);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--colour-dark-purple);
  cursor: pointer;
  padding: 8px;
}

/* 5. Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--colour-dark-purple);
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 40px) 24px 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('assets/patterns/uniform-pattern.svg');
  background-repeat: repeat;
  background-size: 600px;
  opacity: 0.06;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-logo {
  width: 320px;
  max-width: 80%;
  margin: 0 auto 32px;
}

.hero-tagline {
  color: var(--colour-white);
  font-size: 1.25rem;
  line-height: 1.8;
  margin-bottom: 24px;
  opacity: 0.95;
}

.hero-land-ack {
  color: var(--colour-yellow);
  font-size: 0.9rem;
  font-style: italic;
  opacity: 0.85;
}

.hero-icons {
  display: flex;
  gap: 32px;
  justify-content: center;
  margin-top: 48px;
  flex-wrap: wrap;
}

.hero-icons img {
  width: 56px;
  height: 56px;
  opacity: 0.85;
}

/* 6. Section Base */
.section {
  padding: 80px 0;
}

.section:nth-child(even) {
  background: var(--colour-light-grey);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--colour-teal);
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-subtitle {
  color: var(--colour-muted);
  margin-top: 8px;
  font-size: 1rem;
}

/* Pattern decoration on alternating sections */
.section-pattern {
  position: relative;
}

.section-pattern::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background-image: url('assets/patterns/alternate-pattern.svg');
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.04;
  pointer-events: none;
}

/* 7. Director Section */
.director-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

.director-photo-wrap {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.director-photo {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 24px rgba(46, 42, 106, 0.12);
}

.director-photo-placeholder {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: linear-gradient(135deg, var(--colour-lavender) 0%, var(--colour-dark-purple) 100%);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--colour-white);
  font-size: 3rem;
  font-family: var(--font-heading);
}

.director-name {
  font-size: 2rem;
  margin-bottom: 4px;
}

.director-credentials {
  color: var(--colour-lavender);
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.director-pronouns {
  color: var(--colour-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.director-title {
  font-family: var(--font-heading);
  color: var(--colour-dark-purple);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.director-identities {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.director-identities span {
  background: rgba(67, 196, 217, 0.1);
  color: var(--colour-dark-purple);
  font-size: 0.85rem;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(67, 196, 217, 0.3);
}

.director-bio {
  margin-bottom: 24px;
}

.director-bio p {
  margin-bottom: 12px;
}

.director-address {
  color: var(--colour-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
  line-height: 1.5;
}

.director-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.director-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border: 1px solid var(--colour-teal);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--colour-dark-purple);
  transition: all var(--transition);
}

.director-links a:hover {
  background: var(--colour-teal);
  color: var(--colour-white);
}

.affiliations-title {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.affiliations-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.affiliation-item {
  font-size: 0.9rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.affiliation-item a {
  font-weight: 400;
}

.funding-ack {
  margin-top: 24px;
  padding: 16px;
  background: rgba(134, 112, 178, 0.06);
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  color: var(--colour-muted);
}

/* 8. Research / Projects Section */
.projects-grid {
  display: grid;
  gap: 24px;
}

.project-card {
  background: var(--colour-white);
  border-radius: var(--border-radius);
  padding: 28px;
  border-left: 4px solid var(--colour-teal);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.project-card h3 {
  color: var(--colour-dark-purple);
  margin-bottom: 8px;
}

.project-status {
  display: inline-block;
  font-size: 0.8rem;
  padding: 2px 10px;
  border-radius: 12px;
  background: rgba(67, 196, 217, 0.1);
  color: var(--colour-teal);
  margin-bottom: 12px;
}

.project-meta {
  font-size: 0.85rem;
  color: var(--colour-muted);
  margin-bottom: 8px;
}

.project-description {
  font-size: 0.95rem;
  line-height: 1.7;
}

.past-projects-title {
  margin-top: 48px;
  margin-bottom: 24px;
  color: var(--colour-lavender);
}

.past-project-item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.past-project-item h4 {
  margin-bottom: 4px;
}

.past-project-item .project-meta {
  margin-bottom: 0;
}

/* 9. Team Section */
.team-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 16px;
}

.core-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}

.core-values span {
  background: var(--colour-dark-purple);
  color: var(--colour-white);
  font-size: 0.8rem;
  padding: 4px 14px;
  border-radius: 20px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 48px;
}

.team-card {
  background: var(--colour-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: row;
  transition: transform var(--transition), box-shadow var(--transition);
}

.team-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.team-photo {
  width: 100px;
  min-width: 100px;
  height: 100px;
  object-fit: cover;
}

.team-photo-placeholder {
  width: 100px;
  min-width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-family: var(--font-heading);
  color: var(--colour-white);
}

.team-card:nth-child(5n+1) .team-photo-placeholder { background: var(--colour-teal); }
.team-card:nth-child(5n+2) .team-photo-placeholder { background: var(--colour-pink); }
.team-card:nth-child(5n+3) .team-photo-placeholder { background: var(--colour-lavender); }
.team-card:nth-child(5n+4) .team-photo-placeholder { background: var(--colour-dark-purple); }
.team-card:nth-child(5n+5) .team-photo-placeholder { background: var(--colour-yellow); color: var(--colour-dark-purple); }

.team-info {
  padding: 12px 16px;
  min-width: 0;
}

.team-name {
  font-family: var(--font-heading);
  color: var(--colour-dark-purple);
  font-size: 0.95rem;
  margin-bottom: 1px;
}

.team-pronouns {
  color: var(--colour-muted);
  font-size: 0.8rem;
}

.team-role {
  color: var(--colour-teal);
  font-size: 0.8rem;
  font-weight: 400;
  margin-bottom: 6px;
}

.team-bio {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--colour-body-text);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Furry members */
.furry-section-title,
.alumni-section-title {
  margin-top: 48px;
  margin-bottom: 24px;
}

.furry-card {
  background: var(--colour-white);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  max-width: 500px;
}

.furry-card .team-role {
  color: var(--colour-pink);
  font-style: italic;
}

.alumni-list {
  columns: 2;
  column-gap: 32px;
}

.alumni-item {
  padding: 6px 0;
  font-size: 0.9rem;
  break-inside: avoid;
}

.alumni-item strong {
  color: var(--colour-dark-purple);
}

.alumni-item span {
  color: var(--colour-muted);
  font-size: 0.85rem;
}

/* 10. Publications Section */
.pub-year {
  color: var(--colour-dark-purple);
  font-size: 1.3rem;
  margin-top: 32px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--colour-teal);
}

.pub-year:first-child {
  margin-top: 0;
}

.pub-list {
  list-style: decimal;
  padding-left: 28px;
}

.pub-item {
  margin-bottom: 14px;
  font-size: 0.9rem;
  line-height: 1.6;
  padding-left: 4px;
}

.pub-citation {
  color: var(--colour-body-text);
}

.pub-doi,
.pub-link {
  color: var(--colour-teal);
  font-size: 0.85rem;
  margin-left: 4px;
  white-space: nowrap;
}

.pub-doi:hover,
.pub-link:hover {
  color: var(--colour-pink);
}

.pub-more {
  color: var(--colour-muted);
  font-size: 0.85rem;
  font-style: italic;
  margin: -4px 0 16px 28px;
}

.publications-loading,
.publications-error {
  text-align: center;
  padding: 40px;
  color: var(--colour-muted);
}

/* 11. News Section */
.news-list {
  max-width: 800px;
  margin: 0 auto;
}

.news-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.news-date {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--colour-teal);
  padding-top: 2px;
}

.news-text {
  font-size: 0.95rem;
}

.news-text a {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.85rem;
}

/* 12. Talks Section */
.talks-grid {
  display: grid;
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.talk-card {
  background: var(--colour-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.talk-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--colour-dark-purple);
}

.talk-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.talk-info {
  padding: 20px;
}

.talk-info h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.talk-info p {
  font-size: 0.9rem;
  color: var(--colour-muted);
}

/* 13. Opportunities Section */
.opportunities-content {
  max-width: 800px;
  margin: 0 auto;
}

.opportunities-content h3 {
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--colour-dark-purple);
}

.opportunities-content h3:first-child {
  margin-top: 0;
}

.opportunities-content p,
.opportunities-content ul {
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.opportunities-content ul {
  list-style: disc;
  padding-left: 24px;
}

.opportunities-content li {
  margin-bottom: 6px;
}

.grad-status {
  background: var(--colour-dark-purple);
  color: var(--colour-white);
  padding: 16px 24px;
  border-radius: var(--border-radius);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.teaching-list {
  margin-top: 12px;
}

.teaching-year {
  font-family: var(--font-heading);
  color: var(--colour-teal);
  font-size: 0.95rem;
  margin-top: 16px;
  margin-bottom: 4px;
}

.teaching-courses {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 8px;
}

.teaching-courses li {
  font-size: 0.9rem;
  margin-bottom: 4px;
}

/* 14. Footer */
footer {
  background: var(--colour-dark-purple);
  color: var(--colour-white);
  padding: 48px 0 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('assets/patterns/alternate-pattern.svg');
  background-repeat: repeat;
  background-size: 400px;
  opacity: 0.04;
  pointer-events: none;
}

.footer-content {
  position: relative;
  z-index: 1;
}

.footer-badge {
  width: 80px;
  margin: 0 auto 16px;
  opacity: 0.85;
}

.footer-affiliation {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-bottom: 8px;
}

.footer-copyright {
  font-size: 0.8rem;
  opacity: 0.5;
}

/* 15. Media Queries */
@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: var(--colour-white);
    flex-direction: column;
    padding: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  }

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

  .nav-links a {
    padding: 12px 16px;
    font-size: 1rem;
  }

  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }

  .hero {
    min-height: 80vh;
    padding: calc(var(--nav-height) + 32px) 20px 60px;
  }

  .hero-logo {
    width: 240px;
  }

  .hero-tagline {
    font-size: 1.05rem;
  }

  .director-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .director-photo-wrap {
    position: static;
    max-width: 240px;
    margin: 0 auto;
  }

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

  .alumni-list {
    columns: 1;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .section {
    padding: 56px 0;
  }
}

@media (max-width: 480px) {
  .hero-icons {
    gap: 20px;
  }

  .hero-icons img {
    width: 36px;
    height: 36px;
  }

  .director-links {
    flex-direction: column;
  }

  .director-links a {
    justify-content: center;
  }

  .core-values span {
    font-size: 0.75rem;
    padding: 3px 10px;
  }
}