/* ABOUTME: Stylesheet for MULTI research group website.
   ABOUTME: Contains reset, layout, and component styles. All classes prefixed with multi-. */

/* ========================================
   RESET & BASE
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: var(--line-height-heading);
  margin-top: 0;
}

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

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

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

/* ========================================
   UTILITIES
   ======================================== */
.multi-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.multi-skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: white;
  z-index: 1000;
  transition: top var(--transition-fast);
}

.multi-skip-link:focus {
  top: 0;
}

[hidden] {
  display: none !important;
}

/* ========================================
   LAYOUT
   ======================================== */
.multi-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.multi-section {
  padding: var(--space-lg) 0;
}

/* ========================================
   HEADER
   ======================================== */
.multi-site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  background: #000;
  color: #fff;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.multi-site-header__container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem var(--container-padding);
}

.multi-site-header__u-logo {
  flex-shrink: 0;
  display: block;
  transition: opacity 0.2s;
}

.multi-site-header__u-logo:hover {
  opacity: 0.8;
}

.multi-site-header__u-logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.multi-site-header__dept {
  flex: 1;
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  padding-left: 1.5rem;
}

.multi-site-header__dept-link {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s;
}

.multi-site-header__dept-link:hover {
  opacity: 0.8;
}

.multi-site-header__dept-name {
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  margin: 0;
}

/* Hamburger Menu Button */
.multi-hamburger {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
  transition: background-color 0.2s;
  border-radius: 4px;
}

.multi-hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.multi-hamburger__line {
  width: 28px;
  height: 3px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.multi-hamburger[aria-expanded="true"] .multi-hamburger__line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.multi-hamburger[aria-expanded="true"] .multi-hamburger__line:nth-child(2) {
  opacity: 0;
}

.multi-hamburger[aria-expanded="true"] .multi-hamburger__line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Side Navigation Panel */
.multi-sidenav {
  position: fixed;
  top: 0;
  right: -350px;
  width: 350px;
  height: 100vh;
  background: #000;
  box-shadow: -2px 0 8px rgba(0, 0, 0, 0.3);
  transition: right 0.3s ease-in-out;
  z-index: 101;
  overflow-y: auto;
}

.multi-sidenav[aria-hidden="false"] {
  right: 0;
}

.multi-sidenav__content {
  padding: 5rem 2rem 2rem;
}

.multi-sidenav__content ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.multi-sidenav__content li {
  margin-bottom: 0.5rem;
}

.multi-sidenav__content a {
  display: block;
  padding: 1rem;
  color: #fff;
  text-decoration: none;
  font-size: 1.125rem;
  font-weight: 600;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.multi-sidenav__content a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.multi-sidenav__content a[href^="http"]::after {
  content: " ↗";
  font-size: 0.75em;
  margin-left: 0.25em;
}

/* Overlay */
.multi-sidenav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  opacity: 0;
  transition: opacity 0.3s;
}

.multi-sidenav-overlay[aria-hidden="false"] {
  opacity: 1;
}

.multi-main {
  min-height: 60vh;
}

/* ========================================
   TEAM HEADER & VIEW TOGGLE
   ======================================== */
.multi-team-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
}

.multi-team-header h2 {
  margin-bottom: 0;
}

.multi-team-view-toggle {
  display: flex;
  gap: var(--space-xs);
}

.multi-view-btn {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  font-family: inherit;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.multi-view-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
}

.multi-view-btn--active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.multi-view-btn--active:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

/* ========================================
   TEAM CAROUSEL
   ======================================== */
.multi-team-carousel {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  padding: var(--space-md) 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.multi-team-carousel::-webkit-scrollbar {
  display: none;
}

/* ========================================
   TEAM CARD
   ======================================== */
.multi-team-card {
  flex-shrink: 0;
  width: 280px;
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.multi-team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.multi-team-card--selected {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.multi-team-card__photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
}

.multi-team-card__name {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  margin: var(--space-md) 0 var(--space-xs);
}

.multi-team-card__position {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin: 0 0 var(--space-xs);
}

.multi-team-card__affiliation {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  font-style: italic;
  margin: 0;
}

/* ========================================
   TEAM LIST VIEW
   ======================================== */
.multi-team-list {
  list-style: none;
  padding: 0;
  margin: 0;
  background: var(--color-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.multi-team-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.multi-team-list-item:last-child {
  border-bottom: none;
}

.multi-team-list-item:hover {
  background: var(--color-background);
}

.multi-team-list-item--selected {
  background: var(--color-background);
  border-left: 3px solid var(--color-primary);
}

.multi-team-list-item__name {
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: 600;
  margin: 0;
  min-width: 180px;
}

.multi-team-list-item__position {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin: 0;
  min-width: 200px;
}

.multi-team-list-item__affiliation {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  font-style: italic;
  margin: 0;
}

@media (max-width: 767px) {
  .multi-team-list-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .multi-team-list-item__name,
  .multi-team-list-item__position {
    min-width: auto;
  }
}

/* ========================================
   MEMBER DETAIL
   ======================================== */
.multi-member-detail-card {
  background: var(--color-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.multi-member-detail__banner {
  width: 100%;
  height: 180px;
  background: var(--color-border);
  overflow: hidden;
}

.multi-member-detail__banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.multi-member-detail__content {
  padding: var(--space-lg);
}

.multi-member-detail__header {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.multi-member-detail__photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.multi-member-detail__info {
  flex: 1;
}

.multi-member-detail__name {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.multi-member-detail__titles {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.multi-member-detail__titles li {
  margin-bottom: var(--space-xs);
}

.multi-member-detail__contact {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.multi-member-detail__contact a {
  font-size: var(--font-size-sm);
}

.multi-member-detail__background {
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.multi-member-detail__interests h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-sm);
}

.multi-member-detail__interests ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
  padding: 0;
  margin: 0;
}

.multi-member-detail__interests li {
  background: var(--color-background);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
}

@media (max-width: 575px) {
  .multi-member-detail__header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .multi-member-detail__contact {
    justify-content: center;
  }
}

/* ========================================
   PUBLICATIONS
   ======================================== */
.multi-search-box {
  margin-bottom: var(--space-lg);
}

.multi-search-box input {
  width: 100%;
  max-width: 400px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-base);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
}

.multi-search-box input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.multi-filter-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border-left: 3px solid var(--color-primary);
  margin-bottom: var(--space-md);
}

.multi-results-count {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.multi-publications-list {
  background: var(--color-surface);
  border-radius: var(--border-radius);
  max-height: 600px;
  overflow-y: auto;
}

.multi-publication-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.multi-publication-item:last-child {
  border-bottom: none;
}

.multi-publication-item__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  margin: 0 0 var(--space-xs);
}

.multi-publication-item__authors {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin: 0 0 var(--space-xs);
}

.multi-publication-item__venue {
  font-style: italic;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin: 0 0 var(--space-sm);
}

.multi-publication-item__links a,
.multi-publication-item__links button {
  margin-right: var(--space-md);
  font-size: var(--font-size-sm);
  font-family: inherit;
}

.multi-no-results {
  padding: var(--space-lg);
  text-align: center;
  color: var(--color-text-light);
}

/* ========================================
   BUTTONS
   ======================================== */
.multi-btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.multi-btn--primary {
  background: var(--color-primary);
  color: white;
  border: none;
}

.multi-btn--primary:hover {
  background: var(--color-primary-dark);
  color: white;
}

.multi-btn--text {
  background: none;
  border: none;
  color: var(--color-primary);
  padding: 0;
}

.multi-btn--text:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ========================================
   FOOTER
   ======================================== */
.multi-site-footer {
  background: #000;
  color: #fff;
  padding: 0;
}

.multi-site-footer__sci {
  background: #1a1a1a;
  padding: 2.5rem var(--container-padding);
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.multi-site-footer__sci-logo {
  display: inline-block;
  margin-bottom: 1rem;
  transition: opacity 0.2s;
}

.multi-site-footer__sci-logo:hover {
  opacity: 0.8;
}

.multi-site-footer__sci-logo img {
  height: 60px;
  width: auto;
  display: block;
}

.multi-site-footer__sci-info {
  text-align: center;
}

.multi-site-footer__dept-name {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.multi-site-footer__address {
  font-style: normal;
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
}

.multi-site-footer__address a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

.multi-site-footer__address a:hover {
  color: var(--color-primary);
}

.multi-site-footer__main {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem var(--container-padding);
  align-items: center;
}

.multi-site-footer__university-left {
  display: flex;
  justify-content: flex-start;
}

.multi-site-footer__university-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}

.multi-site-footer__university-right {
  display: flex;
  justify-content: flex-end;
}

.multi-site-footer__u-logo {
  display: block;
  transition: opacity 0.2s;
}

.multi-site-footer__u-logo:hover {
  opacity: 0.8;
}

.multi-site-footer__u-logo img {
  height: 38px;
  width: auto;
  display: block;
}

.multi-site-footer__copyright {
  margin: 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.05em;
  font-weight: 600;
}

.multi-site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  justify-content: center;
}

.multi-site-footer__legal a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.75rem;
  transition: color 0.2s;
  white-space: nowrap;
}

.multi-site-footer__legal a:hover {
  color: var(--color-primary);
}

.multi-site-footer__social {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

.multi-site-footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
  font-size: 1.25rem;
}

.multi-site-footer__social a:hover {
  background: var(--color-primary);
  color: #fff;
}

.multi-back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: background-color 0.2s, transform 0.2s;
  z-index: 50;
}

.multi-back-to-top:hover {
  background: var(--color-link-hover);
  transform: translateY(-2px);
}

.multi-back-to-top:active {
  transform: translateY(0);
}

/* ========================================
   ERROR
   ======================================== */
.multi-error-message {
  padding: var(--space-lg);
  background: #fee;
  border: 1px solid #c00;
  border-radius: var(--border-radius);
  color: #c00;
}

/* ========================================
   FOCUS STATES
   ======================================== */
a:focus,
button:focus,
input:focus,
.multi-team-card:focus {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ========================================
   RESPONSIVE
   ======================================== */

/* Tablet and below - Stack footer and simplify header */
@media (max-width: 1024px) {
  .multi-site-header__container {
    gap: 1rem;
  }
  
  .multi-site-footer__main {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .multi-site-footer__university-left,
  .multi-site-footer__university-center,
  .multi-site-footer__university-right {
    justify-content: center;
    text-align: center;
  }
  
  .multi-site-footer__social {
    justify-content: center;
  }
}

/* Mobile - Further simplify */
@media (max-width: 768px) {
  .multi-site-header__u-logo-img {
    height: 32px;
  }
  
  .multi-site-header__dept {
    border-left: none;
    padding-left: 0;
  }
  
  .multi-site-header__dept-name {
    font-size: 0.875rem;
  }
  
  .multi-hamburger {
    width: 44px;
    height: 44px;
  }
  
  .multi-sidenav {
    width: 280px;
    right: -280px;
  }
  
  .multi-site-footer__sci-logo img {
    height: 50px;
  }
  
  .multi-back-to-top {
    width: 40px;
    height: 40px;
    bottom: 1rem;
    right: 1rem;
  }
}

@media (min-width: 992px) {
  .multi-container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .multi-container {
    max-width: 1140px;
  }
}