/**
 * Emissio Research - Public Styles
 * Uses Pagelayer theme color variables
 */

/* Research Heading */
.emissio-research-heading {
  margin-bottom: 4rem;
}
.emissio-research-main-heading {
  color: var(--pagelayer-color-primary, #8cc63f);
  font-family: var(--pagelayer-font-primary-font-family, 'Open Sans'), sans-serif;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  padding: 0;
  border: none;
  display: block;
  line-height: 1.25;
  letter-spacing: -0.5px;
}

/* Research Preamble */
.emissio-research-preamble {
  margin-bottom: 40px;
  font-size: 1rem;
  line-height: 1.8;
  color: #333;
}
.emissio-research-preamble p {
  margin-bottom: 1em;
}
.emissio-research-preamble ul,
.emissio-research-preamble ol {
  margin: 1em 0;
  padding-left: 2em;
}
.emissio-research-preamble li {
  margin-bottom: 0.5em;
}

/* ===================================
   GRID LAYOUT
   =================================== */

.emissio-research-grid {
  display: grid;
  gap: 30px;
  margin: 60px 0;
}
.emissio-research-grid[data-columns="1"] { grid-template-columns: 1fr; }
.emissio-research-grid[data-columns="2"] { grid-template-columns: repeat(2, 1fr); }
.emissio-research-grid[data-columns="3"] { grid-template-columns: repeat(3, 1fr); }
.emissio-research-grid[data-columns="4"] { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .emissio-research-grid[data-columns="3"],
  .emissio-research-grid[data-columns="4"] {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .emissio-research-grid {
    grid-template-columns: 1fr !important;
  }
}

.emissio-research-grid-item {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.emissio-research-grid-item:hover {
  box-shadow: 0 8px 20px rgba(140,198,63,0.25);
  transform: translateY(-5px);
}

.research-grid-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.research-grid-thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--pagelayer-color-accent, rgba(178,216,125,0.57)) 0%, var(--pagelayer-color-primary, #8cc63f) 100%);
}

.research-grid-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.research-grid-link:hover .research-grid-thumbnail img {
  transform: scale(1.05);
}

.research-status-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 5px 12px;
  color: #fff;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
}

.research-grid-content {
  padding: 25px;
}

.research-type-badge {
  display: inline-block;
  padding: 4px 12px;
  background: #e0e0e0;
  color: #666;
  border-radius: 3px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.research-grid-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--pagelayer-color-text, #1d1d1d);
  margin: 0 0 12px 0;
  line-height: 1.4;
}

.research-grid-authors {
  color: #666;
  font-size: 0.95rem;
  margin-bottom: 8px;
  font-style: italic;
}

.research-grid-date {
  color: #999;
  font-size: 0.9rem;
  margin-bottom: 15px;
}

.research-grid-excerpt {
  color: #666;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 15px;
}

.research-grid-download {
  color: var(--pagelayer-color-primary, #8cc63f);
  font-weight: 600;
  font-size: 0.9rem;
}

.download-icon {
  margin-right: 5px;
}

/* ===================================
   LIST LAYOUT
   =================================== */

.emissio-research-list {
  margin: 40px 0;
}

.emissio-research-list-item {
  background: #fff;
  padding: 35px;
  margin-bottom: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
}

.emissio-research-list-item:hover {
  box-shadow: 0 6px 16px rgba(140,198,63,0.2);
  transform: translateX(5px);
}

.research-list-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 15px;
  gap: 20px;
}

.research-list-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0;
  flex: 1;
}

.research-list-title a {
  color: var(--pagelayer-color-text, #1d1d1d);
  text-decoration: none;
  transition: color 0.3s;
}

.research-list-title a:hover {
  color: var(--pagelayer-color-primary, #8cc63f);
}

.research-list-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 15px;
  color: #666;
  font-size: 0.95rem;
}

.research-meta-item {
  display: inline-block;
}

.research-meta-item strong {
  color: var(--pagelayer-color-text, #1d1d1d);
}

.research-list-abstract {
  color: #666;
  line-height: 1.8;
  margin-bottom: 20px;
}

.research-list-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  align-items: center;
}

.research-read-more {
  color: var(--pagelayer-color-primary, #8cc63f);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s;
}

.research-read-more:hover {
  color: #6fa830;
}

.research-download-pdf,
.research-doi-link {
  display: inline-block;
  padding: 8px 18px;
  background: var(--pagelayer-color-primary, #8cc63f);
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  transition: all 0.3s;
  font-size: 0.9rem;
}

.research-download-pdf:hover,
.research-doi-link:hover {
  background: #6fa830;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(140,198,63,0.3);
}

@media (max-width: 768px) {
  .research-list-header {
    flex-direction: column;
  }
  .research-list-meta {
    flex-direction: column;
    gap: 8px;
  }
}

/* ===================================
   CARDS LAYOUT
   =================================== */

.emissio-research-cards {
  display: grid;
  gap: 30px;
  margin: 40px 0;
}
.emissio-research-cards[data-columns="1"] { grid-template-columns: 1fr; }
.emissio-research-cards[data-columns="2"] { grid-template-columns: repeat(2, 1fr); }
.emissio-research-cards[data-columns="3"] { grid-template-columns: repeat(3, 1fr); }
.emissio-research-cards[data-columns="4"] { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .emissio-research-cards[data-columns="3"],
  .emissio-research-cards[data-columns="4"] {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .emissio-research-cards {
    grid-template-columns: 1fr !important;
  }
}

.emissio-research-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.emissio-research-card:hover {
  box-shadow: 0 12px 28px rgba(140,198,63,0.3);
  transform: translateY(-8px);
}

.research-card-header {
  height: 180px;
  overflow: hidden;
  position: relative;
}

.research-card-header img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.research-card-header-gradient {
  background: linear-gradient(135deg, var(--pagelayer-color-accent, rgba(178,216,125,0.57)) 0%, var(--pagelayer-color-primary, #8cc63f) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.research-card-icon {
  font-size: 4rem;
  opacity: 0.3;
}

.research-card-body {
  padding: 30px;
}

.research-card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}

.research-type-badge,
.research-status-badge,
.research-oa-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.research-type-badge {
  background: #e0e0e0;
  color: #666;
}

.research-oa-badge {
  background: var(--pagelayer-color-primary, #8cc63f);
  color: #fff;
}

.research-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 12px 0;
  line-height: 1.4;
}

.research-card-title a {
  color: var(--pagelayer-color-text, #1d1d1d);
  text-decoration: none;
  transition: color 0.3s;
}

.research-card-title a:hover {
  color: var(--pagelayer-color-primary, #8cc63f);
}

.research-card-authors {
  color: #666;
  font-size: 0.95rem;
  margin-bottom: 8px;
  font-style: italic;
}

.research-card-journal {
  color: #777;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.research-card-date {
  color: #999;
  font-size: 0.9rem;
  margin-bottom: 15px;
}

.research-card-abstract {
  color: #666;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 15px;
}

.research-card-citations {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.research-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.research-card-button {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s;
  text-align: center;
}

.research-card-button-primary {
  background: var(--pagelayer-color-primary, #8cc63f);
  color: #fff;
}

.research-card-button-primary:hover {
  background: #6fa830;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(140,198,63,0.3);
}

.research-card-button-secondary {
  background: #e0e0e0;
  color: #666;
}

.research-card-button-secondary:hover {
  background: #ccc;
}

/* ===================================
   ACCORDION LAYOUT
   =================================== */

.emissio-research-accordion {
  margin: 40px 0;
}

.research-accordion-item {
  margin-bottom: 15px;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.research-accordion-item:hover {
  border-color: var(--pagelayer-color-primary, #8cc63f);
  box-shadow: 0 2px 8px rgba(140,198,63,0.1);
}

.research-accordion-item.active {
  border-color: var(--pagelayer-color-primary, #8cc63f);
  box-shadow: 0 4px 12px rgba(140,198,63,0.15);
}

.research-accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  background: #fff;
  transition: background 0.3s;
  gap: 20px;
}

.research-accordion-header:hover {
  background: #f8f9fa;
}

.research-accordion-title-section {
  flex: 1;
}

.research-accordion-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--pagelayer-color-text, #1d1d1d);
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.research-accordion-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  color: #666;
  font-size: 0.9rem;
}

.research-accordion-badges-section {
  display: flex;
  align-items: center;
  gap: 10px;
}

.research-status-badge-small,
.research-type-badge-small {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: #fff;
}

.research-type-badge-small {
  background: #999;
}

.research-accordion-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--pagelayer-color-primary, #8cc63f);
  color: #fff;
  border-radius: 50%;
  transition: all 0.3s;
}

.toggle-icon {
  transition: transform 0.3s;
  display: block;
}

.research-accordion-item.active .toggle-icon {
  transform: rotate(180deg);
}

.research-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.research-accordion-item.active .research-accordion-content {
  border-top: 1px solid #e0e0e0;
}

.research-accordion-inner {
  padding: 25px;
}

.research-accordion-journal,
.research-accordion-abstract,
.research-accordion-findings,
.research-accordion-keywords {
  margin-bottom: 20px;
  line-height: 1.8;
  color: #666;
}

.research-accordion-journal strong,
.research-accordion-abstract strong,
.research-accordion-findings strong,
.research-accordion-keywords strong {
  color: var(--pagelayer-color-text, #1d1d1d);
  display: block;
  margin-bottom: 8px;
}

.research-accordion-findings ul {
  margin: 10px 0 0 0;
  padding-left: 20px;
}

.research-accordion-findings li {
  margin-bottom: 10px;
}

.research-accordion-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e0e0e0;
}

.research-accordion-link,
.research-accordion-download,
.research-accordion-doi {
  color: var(--pagelayer-color-primary, #8cc63f);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s;
}

.research-accordion-link:hover,
.research-accordion-download:hover,
.research-accordion-doi:hover {
  color: #6fa830;
}

@media (max-width: 768px) {
  .research-accordion-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .research-accordion-badges-section {
    width: 100%;
    justify-content: space-between;
  }
}

/* ===================================
   BREADCRUMBS
   =================================== */

.emissio-breadcrumbs {
  background: #f8f8f8;
  padding: 15px 0;
  border-bottom: 1px solid #e5e5e5;
  margin-bottom: 0;
}

.emissio-breadcrumbs ol {
  list-style: none;
  padding: 0 20px;
  margin: 0 auto;
  max-width: 1400px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.emissio-breadcrumbs li {
  display: flex;
  align-items: center;
  font-size: 0.9rem;
  color: #666;
}

.emissio-breadcrumbs li:not(:last-child)::after {
  content: "›";
  margin-left: 8px;
  color: #999;
  font-size: 1.2rem;
}

.emissio-breadcrumbs a {
  color: var(--pagelayer-color-primary, #8cc63f);
  text-decoration: none;
  transition: color 0.2s ease;
}

.emissio-breadcrumbs a:hover {
  color: #6fa830;
  text-decoration: underline;
}

@media (max-width: 1200px) {
  .emissio-breadcrumbs ol {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .emissio-breadcrumbs {
    padding: 12px 0;
  }

  .emissio-breadcrumbs ol {
    padding: 0 15px;
  }

  .emissio-breadcrumbs li {
    font-size: 0.85rem;
  }
}

/* ===================================
   SINGLE PAGE STYLES
   =================================== */

.emissio-single-research {
  background: #f8f9fa;
}

.research-metadata-bar .metadata-item {
  font-size: 0.95rem;
  color: #666;
}

@media (max-width: 768px) {
  .research-metadata-bar .container {
    flex-direction: column;
    align-items: flex-start !important;
  }
  .research-download-button {
    width: 100%;
  }
  .btn-download {
    width: 100%;
    text-align: center;
  }
}

.research-section h2 {
  font-family: var(--pagelayer-font-primary-font-family, 'Open Sans'), sans-serif;
}

@media (max-width: 768px) {
  .related-grid {
    grid-template-columns: 1fr !important;
  }
  .research-hero .container h1 {
    font-size: 2rem !important;
  }
}

/* Smooth scroll for anchor links */
html {
  scroll-behavior: smooth;
}