/* ==========================================================================
   Base & Variables
   ========================================================================== */
:root {
  --primary-color: #2980b9;
  --accent-color: #2ecc71;
  --text-color: #333333;
  --background-color: #f4f8fa;
  --surface-color: #ffffff;
  --border-color: #e0e0e0;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

html {
  scroll-padding-top: 140px;
  /* Offset for sticky header */
}

body {
  font-family: var(--font-body);
  margin: 0;
  padding: 0;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: #333;
  margin-top: 1em;
  margin-bottom: 0.5em;
  font-weight: 600;
  color: var(--primary-color);
}

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

a:hover {
  color: #3498db;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Header
   ========================================================================== */
.main-header {
  background-color: var(--surface-color);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.main-header .container {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
}

.header-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--primary-color);
}

.main-nav a {
  margin: 0 1rem;
  font-weight: 500;
  color: var(--text-color);
}

.main-nav a.button-primary {
  background-color: var(--primary-color);
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: 5px;
  transition: background-color 0.3s;
}

.main-nav a.button-primary:hover {
  background-color: #3498db;
  color: white;
}


/* ==========================================================================
   Main Content & Cards
   ========================================================================== */
main {
  padding: 2rem 0;
}

.card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.3s;
}

.card:hover {
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.07);
}

.inquiry-card {
  display: block;
  background-color: var(--surface-color);
}

.inquiry-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.inquiry-meta {
  display: flex;
  gap: 1.5rem;
  color: #777;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.inquiry-meta span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ==========================================================================
   Layout Utilities (Replacing missing Bootstrap)
   ========================================================================== */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -15px;
  margin-left: -15px;
}

.col-md-4,
.col-md-8,
.col-12 {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }

  .col-md-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
}

.mb-4 {
  margin-bottom: 1.5rem !important;
}

.mt-4 {
  margin-top: 1.5rem !important;
}

.shadow-sm {
  box-shadow: 0 .125rem .25rem rgba(0, 0, 0, .075) !important;
}

.rounded {
  border-radius: .25rem !important;
}

.border {
  border: 1px solid var(--border-color) !important;
}

.w-100 {
  width: 100% !important;
}

/* ==========================================================================
   Premium Card Component
   ========================================================================== */
.card-preview {
  display: block;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}


.card-preview .card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
  gap: 1rem;
}

.card-preview h3,
.card-preview h5 {
  margin: 0;
  color: var(--primary-color);
  font-size: 1.25rem;
  font-weight: 600;
}

.card-preview .meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: #666;
}

.card-preview .meta-tags i {
  color: var(--primary-color);
  width: 16px;
  text-align: center;
}

.card-preview .description {
  font-size: 0.95rem;
  color: #555;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-clamp: 2;
  overflow: hidden;
}

.card-preview .badge-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  flex-shrink: 0;
}

.badge-custom {
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  background: #f0f4f8;
  color: var(--text-color);
  border: 1px solid var(--border-color);
  white-space: nowrap;
}

/* ==========================================================================
   External Suggestion Styling
   ========================================================================== */
.card-preview-external {
  background: #f8fcfd;
  /* Very light cyan for emphasis */
  border-left: 4px solid #17a2b8;
}

.source-link {
  color: #007bff;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9em;
  margin-top: 0.5rem;
  display: inline-block;
}

.source-link:hover {
  text-decoration: underline;
}



.badge-external {
  background: #2196f3;
  color: white;
  border: none;
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-container {
  max-width: 800px;
  margin: 2rem auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-size: 1rem;
  box-sizing: border-box;
  /* Important for width: 100% */
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.filter-form {
  display: flex;
  flex-wrap: wrap;
  /* Changed to wrap */
  gap: 1rem;
  align-items: flex-end;
}

.main-header .filter-card {
  border: none;
  box-shadow: none;
  padding: 0;
  margin: 0;
}

.filter-form .form-group {
  flex: 1 1 180px;
  /* Flex grow, shrink, and basis */
  margin-bottom: 0;
}

/* Upravený selektor: skrýváme pouze přímé labely (nadpisy polí), 
   abychom neskryli labely uvnitř podkategorií (checkboxy) */
.filter-form .form-group>label {
  font-weight: normal;
  margin-bottom: 0;
  white-space: nowrap;
  /* Visually hide labels in the header search */
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Specifický styl pro kontejner podkategorií ve filtru, aby se zalomil na nový řádek */
#filter-subcategories-container {
  flex-basis: 100%;
  order: 10;
  /* Posunout na konec */
  margin-top: 0.5rem;
}

.filter-form .btn {
  flex-shrink: 0;
  /* Prevent button from shrinking */
}


/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-block;
  padding: 0.8rem 1.75rem;
  border: none;
  border-radius: 5px;
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s;
  text-align: center;
  box-sizing: border-box;
}

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

.btn-primary:hover {
  background-color: #3498db;
  color: white;
}

.btn-accent {
  background-color: var(--accent-color);
  color: white;
}

.btn-accent:hover {
  background-color: #27ae60;
}

.btn-block {
  display: block;
  width: 100%;
}


/* ==========================================================================
   Homepage Specifics
   ========================================================================== */
.hero {
  text-align: center;
  padding: 4rem 1rem;
  background-color: var(--surface-color);
  border-radius: 8px;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.hero p {
  font-size: 1.1rem;
  color: #555;
  margin-bottom: 2rem;
}

.category-grid {
  display: grid;
  /* Upraveno pro max 4 dlaždice na řádek */
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  grid-auto-rows: 120px;
}

.category-tile {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  transition: box-shadow 0.3s;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.category-tile:hover {
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.07);
}

.category-tile h3 {
  margin: 0;
  font-size: 1.2rem;
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */
.breadcrumb {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  list-style: none;
  background-color: #e9ecef;
  border-radius: 0.25rem;
}

.breadcrumb-item {
  display: inline-block;
}

.breadcrumb-item+.breadcrumb-item::before {
  display: inline-block;
  padding-right: 0.5rem;
  padding-left: 0.5rem;
  color: #6c757d;
  content: "/";
}

.breadcrumb-item.active {
  color: #6c757d;
}

/* ==========================================================================
   Autocomplete
   ========================================================================== */
.autocomplete-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 99;
  border: 1px solid #ced4da;
  border-top: none;
  background-color: #fff;
  max-height: 200px;
  overflow-y: auto;
}

/* Změna stylů pro sjednocení s chováním selectu */
.autocomplete-results div {
  padding: 8px 12px;
  cursor: default;
  /* Změna na šipku */
}

.autocomplete-results div:hover {
  background-color: var(--primary-color);
  /* Modré pozadí */
  color: white;
  /* Bílý text */
}

/* ==========================================================================
   Subcategory Tags
   ========================================================================== */
#subcategories-list,
#filter-subcategories-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.subcategory-item label {
  display: flex;
  align-items: center;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  color: var(--text-color);
  font-weight: normal;

  /* Oprava pro filter-form: resetovat absolutní pozici, kterou může zdědit, pokud není selektor specifický */
  position: static;
  width: auto;
  height: auto;
  clip: auto;
  margin: 0;
}

.subcategory-item input[type="checkbox"] {
  display: none;
  /* Hide original checkbox */
}

.subcategory-item label:hover {
  border-color: var(--primary-color);
}

/* Custom checkbox - base style */
.subcategory-item label::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 1px solid var(--primary-color);
  border-radius: 2px;
  margin-right: 0.75rem;
  background-color: white;
  flex-shrink: 0;
}

/* Activated state for the whole tag */
.subcategory-item input[type="checkbox"]:checked+label {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Custom checkbox - activated state */
.subcategory-item input[type="checkbox"]:checked+label::before {
  background-color: white;
  border-color: white;
  color: var(--primary-color);
  content: '✓';
  text-align: center;
  font-weight: bold;
  line-height: 14px;
  /* Adjust for vertical alignment */
}

/* ==========================================================================
   Loading Overlay
   ========================================================================== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  text-align: center;
}

.loading-overlay .spinner {
  width: 50px;
  height: 50px;
  border: 5px solid #f3f3f3;
  border-top: 5px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.loading-overlay h2 {
  margin-bottom: 10px;
  color: var(--primary-color);
}

.loading-overlay p {
  color: #666;
  font-size: 1.1rem;
}