/* ============================================================
   Daedalus Wiki — typography + chrome for the encyclopedia
   Loaded after /website/styles.css on every wiki page.
   ============================================================ */

/* ---------- Subhero variant for the wiki ---------- */
.wk-hero {
  position: relative;
  padding: 80px 0 56px;
  border-bottom: 1px solid var(--border-subtle);
  background:
    radial-gradient(ellipse at 80% 20%, rgba(255,181,71,0.10), transparent 50%),
    radial-gradient(ellipse at 10% 90%, rgba(61,216,232,0.08), transparent 60%);
  overflow: hidden;
}
.wk-hero::before {
  /* faint sectional grid */
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(0deg, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse at center, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000, transparent 75%);
}
.wk-hero-inner { position: relative; }
.wk-hero h1 {
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin-top: 12px;
  text-wrap: balance;
}
.wk-hero h1 em { font-style: italic; color: var(--brand-cyan); }
.wk-hero p {
  margin-top: 14px;
  font-size: 17px;
  color: var(--fg-2);
  max-width: 640px;
  line-height: 1.55;
  text-wrap: pretty;
}

/* ---------- Search ---------- */
.wk-search {
  margin-top: 28px;
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 14px 10px 18px;
  max-width: 560px;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  transition: border-color var(--dur-state) var(--ease-out);
}
.wk-search:focus-within { border-color: var(--border-cyan); box-shadow: 0 0 0 3px rgba(61,216,232,0.12); }
.wk-search svg { width: 16px; height: 16px; color: var(--fg-3); flex-shrink: 0; }
.wk-search input {
  flex: 1; min-width: 0;
  background: transparent; border: 0; outline: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--fg-1);
}
.wk-search input::placeholder { color: var(--fg-4); }
.wk-search-kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  padding: 3px 7px;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background: var(--surface-inset);
}
.wk-stat-row {
  margin-top: 28px;
  display: flex; gap: 36px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--fg-3);
}
.wk-stat-row strong { color: var(--fg-1); font-weight: 600; }

/* ---------- Layout: sidebar + content ---------- */
.wk-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 56px;
  padding: 56px 0 96px;
  align-items: flex-start;
}
.wk-sidebar { position: sticky; top: 96px; }
.wk-side-h {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}
.wk-side-list { display: flex; flex-direction: column; gap: 2px; }
.wk-side-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--fg-2);
  transition: all var(--dur-state) var(--ease-out);
  cursor: pointer;
  border: 0;
  background: transparent;
  text-align: left;
  font-family: var(--font-sans);
  width: 100%;
}
.wk-side-item:hover { background: var(--surface-2); color: var(--fg-1); }
.wk-side-item.is-active {
  background: rgba(61,216,232,0.10);
  color: var(--brand-cyan);
  border-left: 2px solid var(--brand-cyan);
  padding-left: 10px;
}
.wk-side-item-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--fg-3);
}

/* ---------- Article cards (index page) ---------- */
.wk-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.wk-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  transition: all var(--dur-state) var(--ease-out);
  text-decoration: none;
  color: inherit;
  min-height: 200px;
}
.wk-card:hover {
  border-color: var(--border-cyan);
  transform: translateY(-2px);
  box-shadow: var(--e2);
}
.wk-card-tag {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--brand-cyan);
  margin-bottom: 12px;
}
.wk-card h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 8px;
}
.wk-card p {
  font-size: 14px;
  color: var(--fg-2);
  line-height: 1.55;
  flex: 1;
  text-wrap: pretty;
}
.wk-card-meta {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-subtle);
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-3);
}
.wk-card-meta-arrow {
  color: var(--brand-cyan);
  transition: transform var(--dur-state) var(--ease-out);
}
.wk-card:hover .wk-card-meta-arrow { transform: translateX(4px); }

.wk-section-h {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 18px;
}
.wk-section-h h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.wk-section-h .wk-side-h { margin: 0; padding: 0; border: 0; }

.wk-section + .wk-section { margin-top: 56px; }

.wk-empty {
  padding: 80px 24px;
  text-align: center;
  color: var(--fg-3);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
}

/* ---------- Article page ---------- */
.wk-article-head {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 36px;
}
.wk-article-crumbs {
  display: flex; gap: 8px; align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 18px;
}
.wk-article-crumbs a { color: var(--brand-cyan); }
.wk-article-crumbs span { color: var(--fg-4); }
.wk-article h1 {
  font-size: clamp(36px, 4.5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  text-wrap: balance;
  margin-bottom: 16px;
}
.wk-article-summary {
  font-size: 19px;
  color: var(--fg-2);
  line-height: 1.55;
  max-width: 720px;
  margin-bottom: 22px;
  text-wrap: pretty;
}
.wk-article-meta {
  display: flex; gap: 20px; flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.wk-article-meta strong { color: var(--fg-1); font-weight: 600; }

/* TOC + article body two-column */
.wk-article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 56px;
  align-items: flex-start;
}
.wk-toc { position: sticky; top: 96px; }
.wk-toc-h { 
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 12px;
}
.wk-toc-list { display: flex; flex-direction: column; gap: 4px; }
.wk-toc-list a {
  font-size: 13px;
  color: var(--fg-2);
  padding: 6px 10px;
  border-left: 2px solid var(--border-subtle);
  transition: all var(--dur-state) var(--ease-out);
}
.wk-toc-list a:hover { color: var(--brand-cyan); border-left-color: var(--brand-cyan); }

/* Article prose */
.wk-prose { max-width: 720px; }
.wk-prose h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 56px 0 16px;
  scroll-margin-top: 96px;
  text-wrap: balance;
}
.wk-prose h2:first-child { margin-top: 0; }
.wk-prose h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 32px 0 10px;
  color: var(--fg-1);
}
.wk-prose p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-2);
  margin-bottom: 16px;
  text-wrap: pretty;
}
.wk-prose strong { color: var(--fg-1); font-weight: 600; }
.wk-prose em { color: var(--fg-1); font-style: italic; }
.wk-prose ul, .wk-prose ol {
  margin: 0 0 18px 24px;
  padding: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-2);
}
.wk-prose li { margin-bottom: 8px; }
.wk-prose li::marker { color: var(--brand-cyan); }
.wk-prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 2px 6px;
  background: var(--surface-inset);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--brand-cyan);
}
.wk-prose a {
  color: var(--brand-cyan);
  border-bottom: 1px solid rgba(61,216,232,0.30);
  transition: border-color var(--dur-state) var(--ease-out);
}
.wk-prose a:hover { border-bottom-color: var(--brand-cyan); }

/* Student-pilot callout */
.wk-callout {
  margin: 28px 0;
  padding: 20px 24px;
  border-radius: var(--radius-lg);
  background: rgba(255,181,71,0.06);
  border: 1px solid rgba(255,181,71,0.22);
  border-left: 3px solid var(--brand-amber);
  position: relative;
}
.wk-callout-tag {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--brand-amber);
  font-weight: 600;
  margin-bottom: 8px;
}
.wk-callout p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-1);
  margin: 0;
  text-wrap: pretty;
}

/* Diagram block */
.wk-diagram {
  margin: 32px 0;
  padding: 28px 24px;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.wk-diagram svg { display: block; width: 100%; height: auto; max-width: 640px; margin: 0 auto; }
.wk-diagram-cap {
  margin-top: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.wk-diagram-cap strong { color: var(--fg-1); }

/* Definition table */
.wk-table {
  margin: 24px 0;
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.wk-table th, .wk-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
}
.wk-table th {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--fg-3);
  font-weight: 500;
  background: var(--surface-1);
  border-bottom: 1px solid var(--border-default);
}
.wk-table td { color: var(--fg-2); }
.wk-table td:first-child { color: var(--fg-1); font-weight: 500; }

/* "Ask the AI tutor" CTA chip */
.wk-ask {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 24px 0 0;
  padding: 12px 16px 12px 14px;
  background: linear-gradient(135deg, rgba(61,216,232,0.10), rgba(61,216,232,0.03));
  border: 1px solid rgba(61,216,232,0.30);
  border-radius: var(--radius-pill);
  cursor: pointer;
  color: var(--fg-1);
  font-size: 14px;
  transition: all var(--dur-state) var(--ease-out);
  font-family: var(--font-sans);
}
.wk-ask:hover {
  background: linear-gradient(135deg, rgba(61,216,232,0.18), rgba(61,216,232,0.06));
  transform: translateY(-1px);
}
.wk-ask-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--brand-cyan);
  color: var(--fg-on-cyan);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.wk-ask-icon svg { width: 14px; height: 14px; }
.wk-ask-text strong { display: block; font-weight: 600; line-height: 1.3; }
.wk-ask-text small { display: block; font-size: 12px; color: var(--fg-3); margin-top: 2px; }

/* References */
.wk-refs {
  margin: 56px 0 0;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}
.wk-refs h3 {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 16px;
  font-weight: 500;
}
.wk-refs ol {
  list-style: decimal;
  margin: 0 0 0 22px;
  padding: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg-2);
  font-family: var(--font-sans);
}
.wk-refs li { margin-bottom: 6px; }
.wk-refs li::marker { color: var(--fg-4); font-family: var(--font-mono); }

/* Related articles */
.wk-related {
  margin: 56px 0 0;
  padding-top: 40px;
  border-top: 1px solid var(--border-subtle);
}
.wk-related-h {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 18px;
}
.wk-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.wk-related-card {
  padding: 18px;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--dur-state) var(--ease-out);
}
.wk-related-card:hover { border-color: var(--border-cyan); }
.wk-related-tag {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--brand-cyan);
  margin-bottom: 6px;
}
.wk-related-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .wk-layout { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 64px; }
  .wk-sidebar { position: static; }
  .wk-side-list { flex-direction: row; flex-wrap: wrap; }
  .wk-side-item { width: auto; flex: 1 1 calc(50% - 4px); }
  .wk-article-grid { grid-template-columns: 1fr; gap: 32px; }
  .wk-toc { position: static; }
  .wk-grid { grid-template-columns: 1fr; }
  .wk-related-grid { grid-template-columns: 1fr; }
}