/* ============================================================
   WIKI LAYOUT — Shared styles for Phase 04 pages
   Extends the core wiki pattern from Phase 03
   ============================================================ */

/* ---- Scroll progress bar ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--exeter-yellow);
  z-index: 1001;
  width: 0%;
  transition: width 80ms linear;
}

/* ---- Site header (white, aligned with Phase 01/02) ---- */
.wiki-site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  height: var(--header-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-light);
}
.wiki-site-header__inner {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.wiki-site-header__logo { height: 32px; width: auto; }
.wiki-site-header__title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-left: var(--space-md);
  white-space: nowrap;
}
.wiki-site-header__hub {
  margin-left: auto;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.wiki-site-header__hub:hover { color: var(--text-primary); }

/* ---- Two-column wiki grid ---- */
.wiki-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - var(--header-height));
}

/* ---- Sidebar ---- */
.wiki-sidebar {
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  border-right: 1px solid var(--grey-100);
  background: var(--grey-50, #FCFCFB);
  padding: var(--space-lg) 0;
  scrollbar-width: thin;
  scrollbar-color: var(--grey-200) transparent;
}
.wiki-sidebar::-webkit-scrollbar { width: 4px; }
.wiki-sidebar::-webkit-scrollbar-thumb { background: var(--grey-200); border-radius: 2px; }

.wiki-toc { list-style: none; padding: 0; margin: 0; }
.wiki-toc__heading {
  font-family: var(--font-heading);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--grey-400);
  padding: var(--space-md) var(--space-lg) var(--space-xs);
}
.wiki-toc__link {
  display: block;
  padding: 6px var(--space-lg);
  font-size: 0.8125rem;
  color: var(--charcoal);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
  line-height: 1.4;
}
.wiki-toc__link:hover {
  background: rgba(0,0,0,0.03);
  color: var(--near-black);
}
.wiki-toc__link--active {
  border-left-color: var(--exeter-yellow);
  color: var(--near-black);
  font-weight: 600;
  background: rgba(255, 237, 0, 0.06);
}
.wiki-toc__link--nested {
  padding-left: calc(var(--space-lg) + 14px);
  font-size: 0.75rem;
  color: var(--grey-400);
}
.wiki-toc__link--nested:hover { color: var(--charcoal); }
.wiki-toc__link--nested.wiki-toc__link--active { color: var(--near-black); font-weight: 600; }
.wiki-toc__divider { height: 1px; background: var(--grey-100); margin: var(--space-sm) var(--space-lg); }

.wiki-toc__back {
  display: block;
  padding: 6px var(--space-lg);
  font-size: 0.7rem;
  color: var(--grey-400);
  text-decoration: none;
  margin-bottom: var(--space-xs);
}
.wiki-toc__back:hover { color: var(--charcoal); }

/* Mobile sidebar toggle */
.wiki-sidebar-toggle {
  display: none;
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  z-index: 200;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--near-black);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
  font-size: 1.2rem;
  line-height: 1;
  align-items: center;
  justify-content: center;
}
.wiki-sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 149;
  background: rgba(0,0,0,0.4);
}

/* ---- Content area ---- */
.wiki-content {
  min-width: 0;
  padding: 0 var(--space-2xl) var(--space-3xl);
  max-width: 960px;
}

/* ---- Compact page header ---- */
.wiki-header {
  padding: var(--space-2xl) 0 var(--space-xl);
  border-bottom: 1px solid var(--grey-100);
  margin-bottom: var(--space-2xl);
}
.wiki-header__breadcrumb {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--grey-400);
  text-decoration: none;
}
.wiki-header__breadcrumb:hover { color: var(--charcoal); }
.wiki-header__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: var(--near-black);
  margin: var(--space-sm) 0 var(--space-xs);
  line-height: 1.2;
}
.wiki-header__subtitle {
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---- Section headings ---- */
.wiki-section {
  padding-top: var(--space-2xl);
  margin-top: var(--space-xl);
}
.wiki-section:first-of-type { margin-top: 0; padding-top: 0; }
.wiki-section__heading {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--near-black);
  padding-left: var(--space-md);
  border-left: 4px solid var(--exeter-yellow);
  margin-bottom: var(--space-lg);
  line-height: 1.3;
  scroll-margin-top: 72px;
}
.wiki-section__intro {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: var(--space-xl);
}

/* ---- Stat row ---- */
.wiki-stat-row {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  margin: var(--space-xl) 0;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--grey-100);
  border-bottom: 1px solid var(--grey-100);
}
.wiki-stat-row__item { text-align: center; min-width: 100px; }
.wiki-stat-row__number {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--near-black);
  line-height: 1;
}
.wiki-stat-row__label {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--grey-400);
  margin-top: var(--space-xs);
}

/* ---- Text blocks ---- */
.wiki-text p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
  max-width: 680px;
}

/* ---- Key finding ---- */
.wiki-key-finding {
  background: var(--grey-50, #FCFCFB);
  border-left: 4px solid var(--exeter-yellow);
  border-radius: 4px;
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}
.wiki-key-finding__text {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--near-black);
  line-height: 1.6;
  max-width: 700px;
}

/* ---- Insight callout override ---- */
.insight-callout { margin-top: var(--space-xl); }

/* ---- Table scroll wrapper ---- */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ---- Compact comparison-table ---- */
.comparison-table--compact { font-size: 0.8125rem; }
.comparison-table--compact thead th { padding: var(--space-sm) var(--space-md); font-size: 0.7rem; }
.comparison-table--compact tbody td { padding: var(--space-sm) var(--space-md); font-size: 0.8125rem; line-height: 1.5; }
.comparison-table--compact tbody td:first-child { font-weight: 600; white-space: nowrap; }

/* ---- Page nav (prev/next) ---- */
.wiki-page-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--grey-100);
  margin-top: var(--space-3xl);
}
.wiki-page-nav__item { text-decoration: none; color: inherit; }
.wiki-page-nav__item--next { margin-left: auto; text-align: right; }
.wiki-page-nav__label {
  font-family: var(--font-heading);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--grey-400);
  margin-bottom: 4px;
}
.wiki-page-nav__title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--near-black);
}
.wiki-page-nav__item:hover .wiki-page-nav__title { color: var(--charcoal); }

/* ============================================================
   PHASE 04 SPECIFIC STYLES
   ============================================================ */

/* ---- Sortable table ---- */
.sortable-table { width: 100%; }
.sortable-table thead th {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 20px;
}
.sortable-table thead th::after {
  content: '\2195';
  position: absolute;
  right: 6px;
  font-size: 0.6rem;
  color: var(--grey-300);
}
.sortable-table thead th.sort-asc::after { content: '\25B2'; color: var(--near-black); }
.sortable-table thead th.sort-desc::after { content: '\25BC'; color: var(--near-black); }

/* ---- Priority badges ---- */
.priority-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.priority-badge--critical { background: #fce8e6; color: #c5221f; }
.priority-badge--high { background: #fef7e0; color: #b45309; }
.priority-badge--medium { background: #e8f0fe; color: #1a73e8; }
.priority-badge--low { background: #e6f4ea; color: #1e7e34; }

/* ---- Placeholder data indicator ---- */
.placeholder-note {
  display: inline-block;
  background: var(--exeter-yellow);
  color: var(--near-black);
  font-family: var(--font-heading);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 3px;
  margin-bottom: var(--space-md);
}

/* ---- Bar chart (CSS only) ---- */
.bar-chart { margin: var(--space-lg) 0; }
.bar-chart__row {
  display: grid;
  grid-template-columns: 160px 1fr 50px;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: 6px;
}
.bar-chart__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--charcoal);
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bar-chart__track {
  height: 24px;
  background: var(--grey-100);
  border-radius: 3px;
  overflow: hidden;
}
.bar-chart__fill {
  height: 100%;
  background: var(--exeter-yellow);
  border-radius: 3px;
  transition: width 0.4s ease;
  min-width: 2px;
}
.bar-chart__fill--accent { background: var(--near-black); }
.bar-chart__fill--muted { background: var(--grey-300); }
.bar-chart__value {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--charcoal);
}

/* ---- Process flow diagrams ---- */
.process-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  align-items: center;
  margin: var(--space-md) 0;
}
.process-flow__step {
  background: var(--grey-50, #FCFCFB);
  border: 1px solid var(--grey-200);
  border-radius: 4px;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.75rem;
  color: var(--charcoal);
  line-height: 1.4;
  max-width: 180px;
}
.process-flow__step--pain {
  border-color: #c5221f;
  background: #fce8e6;
  color: #c5221f;
}
.process-flow__step--improved {
  border-color: #1e7e34;
  background: #e6f4ea;
  color: #1e7e34;
}
.process-flow__step--auto {
  border-color: var(--exeter-yellow);
  background: rgba(255, 237, 0, 0.15);
  color: var(--near-black);
}
.process-flow__arrow {
  font-size: 1rem;
  color: var(--grey-300);
  padding: 0 4px;
}

/* ---- Redesign card ---- */
.redesign-card {
  border: 1px solid var(--grey-100);
  border-radius: 6px;
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  scroll-margin-top: 72px;
}
.redesign-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.redesign-card__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--near-black);
}
.redesign-card__group {
  font-family: var(--font-heading);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--grey-400);
  background: var(--grey-100);
  padding: 2px 8px;
  border-radius: 3px;
}
.redesign-card__section-title {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--grey-400);
  margin-bottom: var(--space-sm);
  margin-top: var(--space-lg);
}
.redesign-card__section-title:first-of-type { margin-top: 0; }
.redesign-card__pain-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md);
}
.redesign-card__pain-list li {
  font-size: 0.8125rem;
  color: #c5221f;
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.redesign-card__pain-list li::before {
  content: '\2716';
  position: absolute;
  left: 0;
  font-size: 0.6rem;
}
.redesign-card__gain-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md);
}
.redesign-card__gain-list li {
  font-size: 0.8125rem;
  color: #1e7e34;
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.redesign-card__gain-list li::before {
  content: '\2714';
  position: absolute;
  left: 0;
  font-size: 0.7rem;
}
.redesign-card__impact {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--grey-100);
}
.redesign-card__impact-item {}
.redesign-card__impact-number {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--near-black);
}
.redesign-card__impact-label {
  font-size: 0.6875rem;
  color: var(--grey-400);
}

/* ---- Dashboard grid ---- */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}
.dashboard-panel {
  border: 1px solid var(--grey-100);
  border-radius: 6px;
  padding: var(--space-lg);
}
.dashboard-panel--full { grid-column: 1 / -1; }
.dashboard-panel__title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--charcoal);
  margin-bottom: var(--space-md);
}

/* ---- Recommendation cards ---- */
.rec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}
.rec-card {
  border: 1px solid var(--grey-100);
  border-top: 3px solid var(--exeter-yellow);
  border-radius: 4px;
  padding: var(--space-lg);
}
.rec-card__number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--grey-200);
  margin-bottom: var(--space-xs);
}
.rec-card__title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--near-black);
  margin-bottom: var(--space-sm);
}
.rec-card__desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- Filter controls ---- */
.filter-bar {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}
.filter-btn {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 6px 12px;
  border: 1px solid var(--grey-200);
  border-radius: 4px;
  background: #fff;
  color: var(--charcoal);
  cursor: pointer;
  transition: all 0.15s ease;
}
.filter-btn:hover { border-color: var(--charcoal); }
.filter-btn--active {
  background: var(--near-black);
  color: #fff;
  border-color: var(--near-black);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .wiki-layout { grid-template-columns: 1fr; }
  .wiki-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 280px;
    z-index: 150;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: 2px 0 12px rgba(0,0,0,0.15);
  }
  .wiki-sidebar--open { transform: translateX(0); }
  .wiki-sidebar-toggle { display: flex; }
  .wiki-sidebar-overlay--visible { display: block; }
  .wiki-content { padding: 0 var(--space-lg) var(--space-2xl); }
}
@media (max-width: 768px) {
  .wiki-header__title { font-size: 1.5rem; }
  .wiki-stat-row { gap: var(--space-lg); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .bar-chart__row { grid-template-columns: 100px 1fr 40px; }
  .rec-grid { grid-template-columns: 1fr; }
}