/* ==========================================================================
   Kuration Docs — custom theme
   Tokens sourced from kuration-v3/src/styles/tokens.css
   ========================================================================== */

:root {
  /* Purple (newPrimary) */
  --k-purple-50:  oklch(0.97 0.015 290);
  --k-purple-100: oklch(0.93 0.035 290);
  --k-purple-200: oklch(0.86 0.07  290);
  --k-purple-300: oklch(0.74 0.11  290);
  --k-purple-400: oklch(0.62 0.14  290);
  --k-purple-500: oklch(0.48 0.16  290);
  --k-purple-600: oklch(0.41 0.15  290);

  /* Logo lime */
  --k-lime: #d8ff6e;

  /* Ink */
  --k-ink-0:   oklch(1.000 0     0);
  --k-ink-50:  oklch(0.985 0.003 85);
  --k-ink-100: oklch(0.965 0.005 85);
  --k-ink-200: oklch(0.925 0.007 85);
  --k-ink-500: oklch(0.620 0.010 85);
  --k-ink-600: oklch(0.500 0.010 85);
  --k-ink-700: oklch(0.380 0.010 85);
  --k-ink-800: oklch(0.260 0.010 85);

  /* Semantic */
  --k-green-500: oklch(0.55 0.14 150);
  --k-green-50:  oklch(0.96 0.025 150);
  --k-amber-500: oklch(0.72 0.14 75);
  --k-amber-50:  oklch(0.97 0.025 75);
  --k-red-500:   oklch(0.55 0.18 25);
  --k-red-50:    oklch(0.96 0.030 25);
  --k-blue-500:  oklch(0.55 0.14 250);
  --k-blue-50:   oklch(0.96 0.025 250);

  /* Layout */
  --kur-header-h: 3.5rem;
  --kur-tabs-h: 2.75rem;
  --kur-sidebar-w: 15rem;
  --kur-toc-w: 13rem;
  --kur-content-max: 46rem;

  --kur-bg: var(--k-ink-0);
  --kur-fg: var(--k-ink-800);
  --kur-fg-muted: var(--k-ink-600);
  --kur-border: var(--k-ink-200);
  --kur-primary: var(--k-purple-500);
  --kur-primary-light: var(--k-purple-50);

  --font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

[data-theme="dark"] {
  --k-purple-50:  oklch(0.22 0.05  290);
  --k-purple-100: oklch(0.26 0.07  290);
  --k-purple-200: oklch(0.32 0.09  290);
  --k-purple-400: oklch(0.55 0.14  290);
  --k-purple-500: oklch(0.66 0.16  290);
  --k-purple-600: oklch(0.74 0.16  290);

  --k-ink-0:   oklch(0.135 0.006 85);
  --k-ink-50:  oklch(0.165 0.007 85);
  --k-ink-100: oklch(0.205 0.008 85);
  --k-ink-200: oklch(0.250 0.009 85);
  --k-ink-500: oklch(0.560 0.010 85);
  --k-ink-600: oklch(0.660 0.010 85);
  --k-ink-700: oklch(0.780 0.009 85);
  --k-ink-800: oklch(0.880 0.008 85);

  --k-green-500: oklch(0.70 0.13 150);
  --k-green-50:  oklch(0.22 0.04 150);
  --k-amber-500: oklch(0.78 0.13 75);
  --k-amber-50:  oklch(0.24 0.04 75);
  --k-red-500:   oklch(0.68 0.16 25);
  --k-red-50:    oklch(0.24 0.05 25);
  --k-blue-500:  oklch(0.70 0.13 250);
  --k-blue-50:   oklch(0.22 0.04 250);

  --kur-bg: var(--k-ink-0);
  --kur-fg: var(--k-ink-800);
  --kur-fg-muted: var(--k-ink-600);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--kur-header-h) + var(--kur-tabs-h) + 1rem);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--kur-fg);
  background: var(--kur-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--kur-primary); text-decoration: none; }
a:hover { color: var(--k-purple-600); text-decoration: underline; }

img { max-width: 100%; height: auto; }

/* Header */
.kur-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--kur-bg);
  border-bottom: 1px solid var(--kur-border);
}

.kur-header__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: 90rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--kur-header-h);
}

.kur-logo__img {
  height: 2rem;
  width: auto;
}

.kur-logo__img--light { display: block; }
.kur-logo__img--dark { display: none; }

[data-theme="dark"] .kur-logo__img--light { display: none; }
[data-theme="dark"] .kur-logo__img--dark { display: block; }

.kur-search-trigger {
  flex: 1;
  max-width: 22rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 auto;
  padding: 0.45rem 0.75rem;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--kur-fg-muted);
  background: var(--k-ink-50);
  border: 1px solid var(--kur-border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.kur-search-trigger:hover {
  border-color: var(--k-purple-200);
}

.kur-search-trigger span { flex: 1; text-align: left; }

.kur-search-trigger kbd {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  border: 1px solid var(--kur-border);
  background: var(--kur-bg);
  color: var(--kur-fg-muted);
}

.kur-header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.kur-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--kur-border);
  border-radius: 8px;
  background: transparent;
  color: var(--kur-fg);
  cursor: pointer;
}

.kur-icon-btn:hover { background: var(--k-ink-100); }

[data-theme="dark"] .kur-icon-sun { display: none; }
[data-theme="dark"] .kur-icon-moon { display: block !important; }
[data-theme="light"] .kur-icon-moon { display: none; }

.kur-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.9rem;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: filter 0.15s;
}

.kur-btn--primary {
  background: var(--kur-primary);
  color: oklch(0.98 0 0);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.15), 0 1px 0 rgb(0 0 0 / 0.08);
}

.kur-btn--primary:hover {
  filter: brightness(1.08);
  color: oklch(0.98 0 0);
  text-decoration: none;
}

.kur-mobile-menu { display: none; }

/* Top tabs */
.kur-tabs {
  display: flex;
  gap: 0;
  max-width: 90rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--kur-tabs-h);
  border-top: 1px solid var(--kur-border);
  overflow-x: auto;
}

.kur-tab {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--kur-fg-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}

.kur-tab:hover {
  color: var(--kur-fg);
  text-decoration: none;
}

.kur-tab--active {
  color: var(--kur-primary);
  border-bottom-color: var(--kur-primary);
  font-weight: 600;
}

/* Layout */
.kur-layout {
  display: grid;
  grid-template-columns: var(--kur-sidebar-w) 1fr var(--kur-toc-w);
  gap: 0;
  max-width: 90rem;
  margin: 0 auto;
  min-height: calc(100vh - var(--kur-header-h) - var(--kur-tabs-h));
}

.kur-layout__sidebar {
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-right: 1px solid var(--kur-border);
  position: sticky;
  top: calc(var(--kur-header-h) + var(--kur-tabs-h));
  height: calc(100vh - var(--kur-header-h) - var(--kur-tabs-h));
  overflow-y: auto;
}

.kur-main {
  padding: 2rem 2.5rem 3rem;
  min-width: 0;
  max-width: calc(var(--kur-content-max) + 5rem);
}

.kur-layout__toc {
  padding: 1.5rem 1.5rem 1.5rem 0;
  position: sticky;
  top: calc(var(--kur-header-h) + var(--kur-tabs-h));
  height: calc(100vh - var(--kur-header-h) - var(--kur-tabs-h));
  overflow-y: auto;
}

/* Sidebar nav */
.kur-sidebar__label {
  margin: 0 0 0.75rem;
  padding: 0 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--kur-fg-muted);
}

.kur-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.kur-nav-list--depth-1 { padding-left: 0.5rem; }

.kur-nav-item { margin: 0.1rem 0; }

.kur-nav-section {
  display: block;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--kur-fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kur-nav-link {
  display: block;
  padding: 0.35rem 0.75rem;
  font-size: 0.875rem;
  color: var(--kur-fg-muted);
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.12s, color 0.12s;
}

.kur-nav-link:hover {
  background: var(--k-ink-100);
  color: var(--kur-fg);
  text-decoration: none;
}

.kur-nav-link--active {
  background: var(--kur-primary-light);
  color: var(--kur-primary);
  font-weight: 600;
}

/* Page header */
.kur-eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--kur-primary);
}

.kur-page-title {
  margin: 0 0 1.5rem;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--kur-fg);
}

/* Markdown starts with # Title — template already renders kur-page-title */
.kur-page-title ~ .kur-prose > h1:first-child {
  display: none;
}

/* Prose */
.kur-prose h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 2rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--kur-border);
}

.kur-prose h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--kur-border);
}

.kur-prose h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.kur-prose p { margin: 0 0 1rem; color: var(--k-ink-700); }
[data-theme="dark"] .kur-prose p { color: var(--k-ink-700); }

.kur-prose ul, .kur-prose ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

.kur-prose li { margin: 0.25rem 0; }

.kur-prose hr {
  border: none;
  border-top: 1px solid var(--kur-border);
  margin: 2rem 0;
}

.kur-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.875rem;
}

.kur-prose th,
.kur-prose td {
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--kur-border);
  text-align: left;
}

.kur-prose th {
  background: var(--k-ink-50);
  font-weight: 600;
}

.kur-prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  background: var(--k-ink-100);
  color: var(--kur-fg);
}

.kur-prose pre {
  position: relative;
  margin: 0.75rem 0 1rem;
  padding: 0.45rem 0.65rem;
  padding-right: 4.5rem;
  border-radius: 8px;
  border: 1px solid var(--kur-border);
  background: var(--k-ink-50);
  overflow-x: auto;
}

.kur-code-copy {
  position: absolute;
  top: 0.35rem;
  right: 0.35rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.55rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--kur-fg-muted);
  background: var(--kur-bg);
  border: 1px solid var(--kur-border);
  border-radius: 6px;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity 0.15s, color 0.15s, border-color 0.15s;
}

.kur-prose pre:hover .kur-code-copy,
.kur-code-copy:hover,
.kur-code-copy:focus-visible {
  opacity: 1;
}

.kur-code-copy:hover {
  color: var(--kur-primary);
  border-color: var(--k-purple-200);
}

.kur-code-copy--copied {
  color: var(--k-green-500);
  border-color: var(--k-green-500);
  opacity: 1;
}

.kur-prose pre code {
  display: block;
  padding: 0;
  background: none;
  font-size: 0.8125rem;
  line-height: 1.45;
}

/* highlight.js adds padding on .hljs — strip it inside our blocks */
.kur-prose pre code.hljs {
  padding: 0;
  background: transparent;
}

/* TOC */
.kur-toc__label {
  margin: 0 0 0.75rem;
  padding-left: 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--kur-fg-muted);
}

.kur-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.kur-toc-list--root { border-left: 1px solid var(--kur-border); }

.kur-toc-item--level-2 .kur-toc-link { padding-left: 0.75rem; }
.kur-toc-item--level-3 .kur-toc-link { padding-left: 1.25rem; font-size: 0.8rem; }

.kur-toc-link {
  display: block;
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--kur-fg-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: color 0.12s, border-color 0.12s;
}

.kur-toc-link:hover {
  color: var(--kur-fg);
  text-decoration: none;
}

.kur-toc-link--active,
.kur-toc-link:active {
  color: var(--kur-primary);
  border-left-color: var(--kur-primary);
  font-weight: 500;
}

/* Footer */
.kur-footer {
  max-width: 90rem;
  margin: 0 auto;
  padding: 1.5rem;
  border-top: 1px solid var(--kur-border);
  font-size: 0.8125rem;
  color: var(--kur-fg-muted);
}

.kur-footer p { margin: 0; }

/* Search modal */
.kur-search-modal[hidden] { display: none; }

.kur-search-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}

.kur-search-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgb(0 0 0 / 0.45);
}

.kur-search-modal__panel {
  position: relative;
  width: min(36rem, calc(100vw - 2rem));
  background: var(--kur-bg);
  border: 1px solid var(--kur-border);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgb(0 0 0 / 0.15);
  overflow: hidden;
}

.kur-search-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--kur-border);
}

.kur-search-modal__title {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

.kur-search-modal__close {
  display: flex;
  padding: 0.25rem;
  border: none;
  background: none;
  color: var(--kur-fg-muted);
  cursor: pointer;
  border-radius: 6px;
}

.kur-search-modal__close:hover { background: var(--k-ink-100); }

.kur-search-modal__body { padding: 0.75rem 1rem; }

.kur-search-input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-family: inherit;
  font-size: 0.9375rem;
  border: 1px solid var(--kur-border);
  border-radius: 8px;
  background: var(--k-ink-50);
  color: var(--kur-fg);
  outline: none;
}

.kur-search-input:focus {
  border-color: var(--kur-primary);
  box-shadow: 0 0 0 3px var(--kur-primary-light);
}

.kur-search-results {
  margin-top: 0.75rem;
  max-height: 20rem;
  overflow-y: auto;
}

.kur-search-results article {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--kur-border);
}

.kur-search-results article:last-child { border-bottom: none; }

.kur-search-results h3 {
  margin: 0 0 0.25rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.kur-search-results p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--kur-fg-muted);
}

.kur-search-modal__footer {
  padding: 0.5rem 1rem;
  border-top: 1px solid var(--kur-border);
  font-size: 0.75rem;
  color: var(--kur-fg-muted);
}

.kur-search-modal__footer kbd {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
  border: 1px solid var(--kur-border);
  background: var(--k-ink-50);
  margin-right: 0.15rem;
}

/* 404 */
.kur-404 { text-align: center; padding: 4rem 0; }
.kur-404__text { color: var(--kur-fg-muted); margin-bottom: 1.5rem; }

/* Responsive */
@media (max-width: 1100px) {
  .kur-layout {
    grid-template-columns: var(--kur-sidebar-w) 1fr;
  }
  .kur-layout__toc { display: none; }
}

@media (max-width: 768px) {
  .kur-search-trigger span,
  .kur-search-trigger kbd { display: none; }

  .kur-search-trigger {
    flex: 0;
    max-width: none;
    padding: 0.45rem;
  }

  .kur-mobile-menu { display: flex; }

  .kur-layout {
    grid-template-columns: 1fr;
  }

  .kur-layout__sidebar {
    display: none;
    position: fixed;
    inset: calc(var(--kur-header-h) + var(--kur-tabs-h)) 0 0 0;
    z-index: 90;
    background: var(--kur-bg);
    border-right: none;
    height: auto;
    padding: 1rem;
  }

  .kur-layout__sidebar.kur-sidebar--open {
    display: block;
  }

  .kur-main { padding: 1.5rem 1.25rem 2.5rem; }
  .kur-tabs { padding: 0 1rem; }
  .kur-header__inner { padding: 0 1rem; }
}