/*-------------------------------------------------------------------
  # GENERAL STYLES
-------------------------------------------------------------------*/

:root {
  --color-background: #ffffff;
  --color-surface: #FBF8C5;
  --color-surface-strong: #D3D0CB;
  --color-text: #071013;
  --color-heading: #071013;
  --color-muted: #33392D;
  --color-primary-accent: #8F250C;
  --color-secondary-accent: #EF8A17;
  --color-contrast: #ffffff;
  --color-hero-text: #ffffff;
  --color-card-background: #ffffff;
  --color-tag-background: rgba(211, 208, 203, 0.5);

  --default-font: "Lato", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --heading-font: "Raleway", sans-serif;
  --nav-font: "Lato", sans-serif;

  --color-accent: var(--color-secondary-accent);
  --color-accent-strong: var(--color-primary-accent);

  --background-color: var(--color-background);
  --surface-color: var(--color-surface);
  --default-color: var(--color-text);
  --heading-color: var(--color-heading);
  --accent-color: var(--color-accent);
  --contrast-color: var(--color-contrast);
  --offwhite: var(--color-surface);
  --grey: var(--color-muted);
  --offblack: var(--color-text);
  --sienna: var(--color-primary-accent);
  --timberwolf: var(--color-surface-strong, var(--color-surface));
  --tangerine: var(--color-secondary-accent);
  --charcoal: var(--color-heading);

  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--default-color);
  font-family: var(--default-font);
  background-color: var(--background-color);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: 0.3s ease;
}

a:hover,
a:focus {
  color: color-mix(in srgb, var(--accent-color), transparent 25%);
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--heading-font);
  font-weight: 600;
  color: var(--heading-color);
}

p,
li,
span {
  font-family: var(--default-font);
  font-weight: 400;
  color: inherit;
}

section,
.section {
  color: var(--default-color);
  background-color: var(--background-color);
  padding: 40px;
  overflow: clip;
}

.section .content-container {
  padding: 10px;
}

@media (min-width: 1200px) {
  body.database-page main {
    margin-left: 0;
  }
}

/* Light and Dark Theme Adjustments */
.light-background {
  --background-color: color-mix(in srgb, var(--accent-color) 20%, transparent);
  --surface-color: var(--offwhite);
}

.dark-background {
  --background-color: var(--sienna);
  --contrast-color: var(--color-contrast);
  --default-color: var(--contrast-color);
  --heading-color: var(--contrast-color);
  --surface-color: color-mix(in srgb, var(--sienna) 70%, black 10%);
}

/*-------------------------------------------------------------------
HERO SECTION
-------------------------------------------------------------------*/

.database-hero {
  width: 100%;
  min-height: 20vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end; /* Anchor content to the bottom */
  align-items: center;
  overflow: hidden;
  position: relative;
  z-index: 1;
  padding: 0;
}

.hero {
  position: relative; /* Ensures it behaves normally */
  z-index: 1;
}


/* Ensure the hero title is at the bottom of the container */
.database-hero .container {
  position: relative;
  z-index: 3;
  color: var(--color-hero-text);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end; /* Push title to the bottom */
  gap: 20px;
  text-align: center;
  padding: 20px;
  height: 100%;
  flex: 1 1 auto;
}

.database-hero .hero-title {
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0;
}

.database-hero .hero-subtitle {
  font-size: 1.125rem;
  margin: 0;
}

/*-------------------------------------------------------------------
  # FILTERS SECTION - COMPACT LAYOUT
-------------------------------------------------------------------*/

.filters-section {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: color-mix(in srgb, var(--color-card-background) 40%, transparent); /* Semi-transparent surface tone */
  backdrop-filter: blur(8px); /* Adds a slight blur effect */
  padding: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2); /* Keeps filters readable */
}

/* Filters Section */
.filters {
  display: grid;
  grid-template-columns: minmax(200px, 240px) 1fr;
  align-items: flex-start;
  padding: 15px;
  background-color: var(--timberwolf); /* Timberwolf background */
  border-radius: 8px;
  width: 100%;
  column-gap: 24px;
  row-gap: 20px;
  transition: all 0.3s ease; /* Smooth transition */
  z-index: -1;
}

.filter-toggle-list {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}

.filter-toggle-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 8px 12px;
  background-color: color-mix(in srgb, var(--color-card-background) 75%, transparent);
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--offblack) 8%, transparent);
}

.filter-toggle-row--disabled {
  opacity: 0.6;
}

.filter-toggle-name {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 600;
  color: var(--offblack);
}

.filter-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  width: 100%;
}

/* Dedicated styles for venue tags removed in favor of shared checkbox styling */

.venue-filter-card .filter-options {
  padding-top: 4px;
}

.venue-filter-card .venue-tags {
  justify-content: flex-start;
}

/* Each filter group */
.filter-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 14px;
  background-color: color-mix(in srgb, var(--color-card-background) 85%, transparent);
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--offblack) 12%, transparent);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
}

.filter-card-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  color: var(--offblack);
}

.filter-group.filter-group--empty {
  display: none;
}

/* Filter Headings */
.filter-group h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  text-align: left;
}

.filter-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 44px;
  height: 22px;
  flex-shrink: 0;
}

.filter-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.filter-toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: color-mix(in srgb, var(--offblack) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--offblack) 28%, transparent);
  border-radius: 9999px;
  transition: background-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.filter-toggle-slider::before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 2px;
  bottom: 2px;
  background-color: var(--contrast-color);
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

.filter-toggle input:checked + .filter-toggle-slider {
  background-color: var(--tangerine);
  border-color: var(--tangerine);
}

.filter-toggle input:focus-visible + .filter-toggle-slider {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-color) 35%, transparent);
}

.filter-toggle input:checked + .filter-toggle-slider::before {
  transform: translateX(22px);
}

.filter-group--collapsed {
  display: none;
}

/* Collapsed filters are hidden */
.filters.collapsed {
  display: none;
}




/* Additional styling for filter options and checkboxes (keep unchanged) */
.filter-options {
  display: flex;
  flex-direction: column;
  max-height: 150px;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 5px;
  border: 1px solid var(--grey);
  border-radius: 5px;
  background: color-mix(in srgb, var(--color-card-background) 80%, transparent);
}

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

  .filter-toggle-list {
    order: -1;
  }
}

/* Adjusting checkbox and other option styles (keep unchanged) */
.filter-options input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  min-height: 18px;
  flex: 0 0 18px;
  margin-right: 0;
  appearance: none;
  border: 0.5px solid var(--grey);
  border-radius: 3px;
  background-color: var(--timberwolf);
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: all 0.2s ease-in-out;
  box-sizing: border-box;
}

.filter-options label {
  display: flex;
  align-items: center;
  font-size: 14px;
  color: var(--grey);
  cursor: pointer;
  gap: 8px;
}

.filter-option-text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 14px;
  line-height: 1.5;
  white-space: nowrap;
}

.testing {
  color: red;
  background-color: yellow;
}

.filter-options .filter-count {
  flex: 0 0 auto;
  font-weight: 300;
  color: var(--grey);
  font-size: 0.9em;
  transition: color 0.3s ease-in-out;
}

/* Ensure the text color is greyed out */
.disabled-filter {
  color: grey !important;  /* Make text grey */
  opacity: 0.75 !important; /* Reduce opacity */
}

/* Ensure disabled checkboxes cannot be clicked */
.disabled-filter input[type="checkbox"] {
  pointer-events: none; /* Prevent clicks */
  opacity: 1.0; /* Slight transparency */
}



/* When Checkbox is Checked */
.filter-options input[type="checkbox"]:checked + span {
  color: var(--sienna);
  font-weight: 600;
}

.filter-options input[type="checkbox"]:checked + span + .filter-count {
  color: var(--sienna);
  font-weight: 600;
}

.filter-options input[type="checkbox"]:checked {
  background-color: var(--sienna);
  border-color: var(--sienna);
}

/* Checkmark Effect */
.filter-options input[type="checkbox"]::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 6px;
  height: 12px;
  border: solid white;
  border-width: 0 1px 1px 0;
  transform: rotate(45deg);
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

/* Show Checkmark When Checked */
.filter-options input[type="checkbox"]:checked::after {
  opacity: 1;
}

/* Hover Effect */
.filter-options input[type="checkbox"]:hover {
  background-color: color-mix(in srgb, var(--timberwolf) 50%, white 10%);
  border-color: var(--sienna);
}

/* Focus State for Accessibility */
.filter-options input[type="checkbox"]:focus {
  outline: 1px solid var(--sienna);
}



/* Button Container - Holds Reset & Toggle Buttons */
.filter-controls {
  display: flex;
  width: 100%;
  gap: 10px; /* Space between buttons */
  margin-bottom: 10px; /* Space below buttons */
  justify-content: space-between; /* Make sure buttons take up half the width each */
  z-index: 2;
}

/* Buttons for Reset & Toggle Filters */
.filter-button {
  flex: 1; /* Ensures each button takes up half of the container width */
  background-color: var(--sienna);
  color: white;
  border: 2px solid var(--sienna);
  padding: 10px 15px;
  font-size: 16px;
  font-weight: bold;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  text-align: center;
  width: 48%; /* Ensure buttons fit within container */
  white-space: nowrap; /* Prevent text from wrapping */
}

.filter-button:hover {
  background-color: color-mix(in srgb, var(--sienna) 80%, var(--timberwolf) 20%);
  border-color: var(--sienna);
  color: white;
}

.filter-button:focus {
  outline: 2px solid var(--sienna);
  outline-offset: 2px;
}

#toggle-filters i {
  margin-right: 10px; /* Space between the text and the icon */
  transition: transform 0.3s ease-in-out;
}

#toggle-filters.collapsed i {
  transform: rotate(180deg); /* Flip the icon when collapsed */
}


.reset-button {
  background-color: var(--sienna);
  color: white;
  border: 2px solid var(--sienna);
  padding: 10px 20px;
  font-size: 16px;
  font-weight: bold;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  margin-top: 10px;
}

.reset-button:hover {
  background-color: color-mix(in srgb, var(--sienna) 80%, var(--timberwolf) 20%);
  border-color: var(--sienna);
  color: white;
}

.reset-button:focus {
  outline: 2px solid var(--sienna);
  outline-offset: 2px;
}


/*-------------------------------------------------------------------
  # DATABASE CONTAINER
-------------------------------------------------------------------*/

.database-container {
  background: var(--background-color);
  padding: 10px;
  border-radius: 8px;
  box-shadow: 0px 2px 6px rgba(0, 0, 0, 0.15);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  /* text-align: center; */
}

.articles-header {
/* align-content: center; */
text-align: center;
padding-bottom: 10px;
}

/* Cards Layout */
.cards-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

/* Cards grid layout */
#database-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* Strict card sizing */
.database-card {
  width: 100%;
  min-width: 300px;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--color-card-background);
  padding: 10px;
  border-radius: 8px;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.3);
  border: 0.5px solid var(--grey);
  transition: 
    transform 0.2s ease-in-out, 
    box-shadow 0.2s ease-in-out,
    grid-column 0.2s,
    background-color 0.2s;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  position: relative;
}

/* Only the expanded card stretches across the row, but stays within the grid container */
.database-card.card-expanded {
  grid-column: 1 / -1;
  width: 100%;
  max-width: 100%; /* Fill the grid container, not the viewport */
  min-width: 0;
  z-index: 10;
  transform: none; /* No scale by default */
  box-shadow: 0px 8px 24px rgba(0,0,0,0.25);
  background-color: var(--color-card-background); /* Match normal card background */
}

/* HOVER EFFECT for all cards, including expanded */
.database-card:hover,
.database-card.card-expanded:hover {
  transform: translateY(-5px);
  box-shadow: 0px 6px 12px rgba(0, 0, 0, 0.2);
  background-color: color-mix(in srgb, var(--accent-color) 8%, var(--color-card-background) 92%);
}


/* Centered & Styled Title */
.card-header {
  display: grid;
  grid-template-columns: auto 100px; /* Left column for heading, right for tags */
  /* gap: 5px; */
  /* margin:5px; */
}

/* DOI FLAG (Access Paper) */
.doi-flag {
  width: 100px;
  height: 25px;
  text-align: center;
  background: color-mix(in srgb, var(--sienna) 60%, transparent);
  color: var(--contrast-color);
  /* padding: 4px 8px; */
  font-size: 10px;
  font-weight:bolder;
  border-radius: 4px;
  padding: 5px;
  text-transform: uppercase;
  margin: 0;
  cursor: pointer;
  text-decoration: underline;
  outline: none;
  /* Optional: visually indicate focus for accessibility */
}
.doi-flag:focus,
.doi-flag:hover {
  background: color-mix(in srgb, var(--sienna) 85%, transparent);
  box-shadow: 0 0 0 2px var(--accent-color);
}

/* Prevent pointer events from bubbling up to the card */
.doi-flag {
  pointer-events: auto;
  z-index: 20;
  position: relative;
}

/* Author & Year (No Bold) */
.card-meta {
  font-size: 11px;
  font-weight: 500;
  font-style: normal;
  color: var(--grey);
  margin: 0;
  padding: 0;
  line-height: 1.4;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.card-meta-venue {
  font-style: italic;
}

/* Centered & Styled Title */
.card-title {
  font-size: 15px;
  font-weight: 500;
  text-align: center;
  margin: 10px 0px;
  line-height: 1.35;
  color: var(--offblack);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.card-abstract {
  font-size: 12px;
  color: var(--grey);
  margin: 0 0 0.5rem 0;
  line-height: 1.4;
}

.database-card.card-expanded .card-abstract {
  display: none;
}

/*-------------------------------------------------------------------
  # DATABASE CARD TAG STYLES (SMALLER & CLEANER)
-------------------------------------------------------------------*/

.card-tags {
  padding: 6px 8px;
}

.card-tags div {
  font-size: 12px;  /* Smaller font size for tag headings */
  font-weight: normal; /* No bold */
  margin-bottom: 3px;
}


/* Container for Each Tag Section */
.tag-section {
  display: grid;
  grid-template-columns: 70px auto; /* Left column for heading, right for tags */
  align-items: right; /* Align heading to first tag */
  gap: 10px;
  margin-bottom: 8px; /* Space between sections */
}

/* Headings (Left Column) */
.tag-heading {
  font-size: xx-small; /* Smaller text */
  font-weight: 100;
  font-style: italic;
  text-align: right;
  color: var(--grey);
  white-space: nowrap;
}

/* Tags Container (Right Column) */
.tag-container {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* Individual Tags */
.tag {
  display: inline-block;
  background: var(--color-tag-background);
  color: var(--charcoal);
  font-size: 10px; /* Smaller text */
  font-weight: 400;
  padding: 3px 6px; /* Reduce padding */
  border-radius: 3px;
  margin: 1px; /* Reduce space between tags */
  /* white-space: nowrap; */
}

.detail-heading {
  font-size: xx-small; /* Smaller text */
  font-weight: lighter;
  font-style: italic;
  text-align: right;
  color: var(--charcoal);
  white-space: nowrap;
}

.detail-value {
  display: inline-block;
  color: var(--charcoal);
  font-size: 10px; /* Smaller text */
  font-weight: 400;
  padding: 3px 6px; /* Reduce padding */
  border-radius: 3px;
  margin: 1px; /* Reduce space between tags */
}

/*-------------------------------------------------------------------
MOBILE SCREEN RESPONSIVENESS
-------------------------------------------------------------------*/

@media (max-width: 768px) {
  .filters {
    flex-direction: column;  /* Stack filter groups vertically on mobile */
    gap: 10px;  /* Smaller gap between stacked filters */
    transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
    opacity: 1;  /* Make it visible by default */
    z-index: 0;  /* Ensure filters are on top of other elements */
  }

  .filters.collapsed {
    transform: translateY(-100%); /* Move the filters up out of view */
    opacity: 0;  /* Fade them out */
    z-index: -1; /* Keep the filters behind other elements when collapsed */
  }

  .filter-group {
    width: 100%; /* Ensure each filter group takes up the full width */
    z-index: 0; /* Ensure the filter groups remain in the correct stacking order */
  }

  .filter-group h3 {
      margin-bottom: 5px; /* Reduce spacing below filter headings */
      font-size: 14px; /* Slightly smaller text */
  }

  .filter-options  {
      max-height: 120px; /* Slightly smaller to save space */
      padding: 4px;
      font-size: 10px;
      display: grid;  
      /* Use grid for multi-column layout */
      grid-template-columns: repeat(2, 1fr);  /* Create 2 equal-width columns */
  }

  .filter-controls {
    z-index: 1;  /* Higher than the filters */
  }

  #toggle-filters, #reset-filters {
    z-index: 2; /* Ensure the buttons remain on top of the filters */
  }
  .filter-button {
    font-size: 14px; /* Shrink font size */
    padding: 8px 12px; /* Reduce padding */
  }

  .database-hero {
    padding: 10px;  /* Reduced padding for small screens */
    height: min-content;
  }

  .database-hero .hero-title {
    font-size: 1.5rem;  /* Smaller font size on narrow screens */
    line-height: 1.2;  /* Adjust line-height for smaller font size */
  }

  .database-hero .hero-subtitle {
    font-size: 1rem;
  }

  .filter-options label {
    font-size: 0.8rem;
  }


  .database-card {
    width: auto;
  }

  .filter-options input[type="checkbox"] {
    width: 14px;
    height: 14px;
  }
}

@media (max-width: 480px) {
  .database-hero .container {
    padding: 8px;  /* Even smaller padding */
  }
  .database-card {
    width: auto;
  }

  .database-hero .hero-title {
    font-size: 1.25rem;  /* Even smaller font size */
    line-height: 1.2;
  }

  .database-hero .hero-subtitle {
    font-size: 0.95rem;
  }
  .filter-options input[type="checkbox"] {
    width: 12px;
    height: 12px;
  }

  .filter-options  {
    /* Use grid for multi-column layout */
    grid-template-columns: repeat(1, 1fr);  /* Create 2 equal-width columns */
}
}


/* Ensure content scales on large screens */
@media (min-width: 1200px) {
  .database-card {
    width: auto;
  }

  .filter-options input[type="checkbox"] {
    width: 16px;
    height: 16px;
  }

}

/* Expanded details section */
.expanded-details {
  display: none;
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(0,0,0,0.06);
  border-radius: 6px;
  font-size: 0.98em;
  color: var(--offblack);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  animation: fadeIn 0.3s;
}

.database-card.card-expanded .expanded-details {
  display: block;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px);}
  to { opacity: 1; transform: translateY(0);}
}

.detail-text .tag-container {
  display: block;
  font-size: 11px;
  line-height: 1.4;
  color: var(--offblack);
}

.no-results {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--grey);
  font-size: 0.95rem;
}

/* Add Article Button */
.add-article-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--accent-color);
  color: var(--contrast-color);
  border: none;
  border-radius: 7px;
  padding: 6px 18px;
  font-size: 0.95rem;
  font-family: var(--default-font, Arial, sans-serif);
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, opacity 0.2s;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.add-article-btn:hover,
.add-article-btn:focus {
  opacity: 0.85;
  background: color-mix(in srgb, var(--accent-color) 85%, white 15%);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  outline: none;
}

.add-article-btn .add-article-text {
  display: inline;
}

@media (max-width: 600px) {
  .add-article-btn .add-article-text {
    display: none;
  }
  .add-article-btn {
    padding: 6px 10px;
    min-width: 0;
  }
}