/* ==========================================================
   FYDELIA KNOWLEDGE BASE — SHELL CSS
   Layout, search, sidebar, cards, buttons, and theme variables.
   ========================================================== */

:root {
  --fgw-kb-accent: #FF2B2B;
  --fgw-kb-text: #FFFFFF;
  --fgw-kb-muted: #A1A1AA;
  --fgw-kb-surface: #1E1E24;
  --fgw-kb-surface-hover: #282830;
  --fgw-kb-border: rgba(255, 255, 255, 0.1);
  --fgw-kb-border-hover: rgba(255, 255, 255, 0.2);
  --fgw-kb-radius: 12px;
  --fgw-kb-bg: #121214;
}

/* Base Page Layout */
.fgw-kb-page {
  background-color: var(--fgw-kb-bg);
  color: var(--fgw-kb-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
  padding-top: 100px; /* Space for fixed nav */
  padding-bottom: 60px;
}

.fgw-kb-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

/* Header */
.fgw-kb-header {
  margin-bottom: 32px;
}

.fgw-kb-back {
  display: inline-flex;
  align-items: center;
  color: var(--fgw-kb-accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
  transition: opacity 0.2s ease;
}

.fgw-kb-back:hover {
  opacity: 0.8;
}

.fgw-kb-header__title {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0 0 8px 0;
}

.fgw-kb-header__lead {
  font-size: 18px;
  color: var(--fgw-kb-muted);
  margin: 0;
}

/* Search Form */
.fgw-kb-search {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
  background: var(--fgw-kb-surface);
  border: 1px solid var(--fgw-kb-border);
  padding: 8px;
  border-radius: var(--fgw-kb-radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.fgw-kb-search__field {
  flex: 1;
}

.fgw-kb-search__input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--fgw-kb-text);
  font-size: 16px;
  padding: 12px 16px;
  box-sizing: border-box;
  outline: none;
}

.fgw-kb-search__input::placeholder {
  color: var(--fgw-kb-muted);
}

.fgw-kb-search__actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* Buttons */
.fgw-kb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.fgw-kb-btn--primary {
  background-color: var(--fgw-kb-accent);
  color: #FFFFFF;
}

.fgw-kb-btn--primary:hover {
  background-color: #E91E1E;
  box-shadow: 0 0 15px rgba(255, 43, 43, 0.4);
}

.fgw-kb-btn--ghost {
  background: transparent;
  color: var(--fgw-kb-muted);
  border: 1px solid var(--fgw-kb-border);
}

.fgw-kb-btn--ghost:hover {
  color: var(--fgw-kb-text);
  border-color: var(--fgw-kb-border-hover);
  background: rgba(255, 255, 255, 0.03);
}

/* Main Layout Grid */
.fgw-kb-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 992px) {
  .fgw-kb-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Sidebar & Category List */
.fgw-kb-sidebar {
  position: sticky;
  top: 120px;
}

.fgw-kb-category-list {
  list-style: none;
  padding: 16px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--fgw-kb-surface);
  border: 1px solid var(--fgw-kb-border);
  border-radius: var(--fgw-kb-radius);
}

@media (max-width: 992px) {
  .fgw-kb-category-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }
}

.fgw-kb-category-item {
  display: block;
}

.fgw-kb-category-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  color: var(--fgw-kb-muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s ease;
  background: rgba(255, 255, 255, 0.02);
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.fgw-kb-category-link:hover {
  color: var(--fgw-kb-text);
  background: rgba(255, 255, 255, 0.06);
}

.fgw-kb-category-link.active {
  color: #FFFFFF;
  background: var(--fgw-kb-accent);
  font-weight: 600;
}

.fgw-kb-category-count {
  font-size: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--fgw-kb-muted);
  padding: 2px 8px;
  border-radius: 20px;
  transition: all 0.2s ease;
}

.fgw-kb-category-link.active .fgw-kb-category-count {
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

/* Results & Article Cards */
.fgw-kb-results {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.fgw-kb-card {
  background: var(--fgw-kb-surface);
  border: 1px solid var(--fgw-kb-border);
  border-radius: var(--fgw-kb-radius);
  padding: 24px;
  transition: all 0.2s ease;
  text-decoration: none;
  display: block;
}

.fgw-kb-card:hover {
  border-color: var(--fgw-kb-border-hover);
  background: var(--fgw-kb-surface-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.fgw-kb-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--fgw-kb-text);
  margin: 0 0 8px 0;
  transition: color 0.2s ease;
}

.fgw-kb-card:hover .fgw-kb-card__title {
  color: var(--fgw-kb-accent);
}

.fgw-kb-card__excerpt {
  font-size: 15px;
  color: var(--fgw-kb-muted);
  line-height: 1.5;
  margin: 0 0 16px 0;
}

.fgw-kb-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--fgw-kb-muted);
}

.fgw-kb-card__category {
  color: var(--fgw-kb-accent);
  font-weight: 600;
}

/* Status / Empty States */
.fgw-kb-status {
  text-align: center;
  padding: 48px 24px;
  color: var(--fgw-kb-muted);
  font-size: 16px;
  background: var(--fgw-kb-surface);
  border: 1px solid var(--fgw-kb-border);
  border-radius: var(--fgw-kb-radius);
}

/* Breadcrumb */
.fgw-kb-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--fgw-kb-muted);
  margin-bottom: 24px;
}

.fgw-kb-breadcrumb a {
  color: var(--fgw-kb-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.fgw-kb-breadcrumb a:hover {
  color: var(--fgw-kb-text);
}

/* Category Chips */
.fgw-kb-category-chips {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.fgw-kb-chip {
  display: inline-block;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--fgw-kb-accent);
  background: rgba(255, 43, 43, 0.08);
  border: 1px solid rgba(255, 43, 43, 0.15);
  border-radius: 20px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.fgw-kb-chip:hover {
  background: rgba(255, 43, 43, 0.15);
  border-color: rgba(255, 43, 43, 0.3);
}