/*
 * Wikibulou — Material You (Material Design 3) stylesheet
 * =========================================================
 * Uses CSS custom properties (variables) for the colour system.
 * Material You uses "tonal" colours — everything derives from a primary seed colour.
 * No external CSS framework needed — this is pure vanilla CSS.
 *
 * Responsive: works on mobile (vertical) and desktop (wide) screens.
 */

/* ---------------------------------------------------------------
   1. COLOUR TOKENS (Material You tonal palette)
   --------------------------------------------------------------- */
:root {
  /* Primary — the main brand colour (teal/green vibe, earthy) */
  --md-primary:             #006A4E; /* deep teal */
  --md-on-primary:          #FFFFFF;
  --md-primary-container:   #7AF8C8; /* lighter tint of primary */
  --md-on-primary-container:#00201A;

  /* Secondary — supporting colour */
  --md-secondary:           #4D6B5E;
  --md-on-secondary:        #FFFFFF;
  --md-secondary-container: #CFE9D9;
  --md-on-secondary-container:#0A1F16;

  /* Tertiary — accent colour */
  --md-tertiary:            #3D6374;
  --md-on-tertiary:         #FFFFFF;
  --md-tertiary-container:  #C1E8FB;
  --md-on-tertiary-container:#001F2B;

  /* Error */
  --md-error:               #BA1A1A;
  --md-on-error:            #FFFFFF;
  --md-error-container:     #FFDAD6;
  --md-on-error-container:  #410002;

  /* Surface colours — backgrounds */
  --md-surface:             #F5FBF7;
  --md-on-surface:          #171D1A;
  --md-surface-variant:     #DBE5DD;
  --md-on-surface-variant:  #3F4945;
  --md-surface-container:   #E8F0EB;
  --md-surface-container-low: #EFF5F1;
  --md-surface-container-high: #DDE7E2;

  /* Outline */
  --md-outline:             #6F7975;
  --md-outline-variant:     #BFC9C3;

  /* Background */
  --md-background:          #F5FBF7;
  --md-on-background:       #171D1A;

  /* ---------------------------------------------------------------
     2. SHAPE (rounded corners — Material You loves rounding)
     --------------------------------------------------------------- */
  --md-shape-extra-small:   4px;
  --md-shape-small:         8px;
  --md-shape-medium:        12px;
  --md-shape-large:         16px;
  --md-shape-extra-large:   28px;
  --md-shape-full:          9999px;

  /* ---------------------------------------------------------------
     3. ELEVATION SHADOWS
     --------------------------------------------------------------- */
  --md-shadow-1: 0 1px 2px rgba(0,0,0,.15), 0 1px 3px 1px rgba(0,0,0,.10);
  --md-shadow-2: 0 1px 2px rgba(0,0,0,.15), 0 2px 6px 2px rgba(0,0,0,.10);
  --md-shadow-3: 0 4px 8px 3px rgba(0,0,0,.10), 0 1px 3px rgba(0,0,0,.15);

  /* ---------------------------------------------------------------
     4. TYPOGRAPHY
     Google Fonts loaded in base.html: Noto Serif + Noto Sans
     Noto gives good Malay/Latin support.
     --------------------------------------------------------------- */
  --md-font-display:  'Noto Serif', Georgia, serif;
  --md-font-body:     'Noto Sans', system-ui, sans-serif;
  --md-font-mono:     'Fira Code', 'Courier New', monospace;

  /* ---------------------------------------------------------------
     5. SPACING
     --------------------------------------------------------------- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
}

/* ---------------------------------------------------------------
   DARK MODE — flip colours automatically based on system pref
   --------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root {
    --md-primary:             #5CDBAD;
    --md-on-primary:          #003828;
    --md-primary-container:   #00513B;
    --md-on-primary-container:#7AF8C8;

    --md-secondary:           #B3CCBE;
    --md-on-secondary:        #1F352A;
    --md-secondary-container: #354B40;
    --md-on-secondary-container:#CFE9D9;

    --md-tertiary:            #A5CCDF;
    --md-on-tertiary:         #073546;
    --md-tertiary-container:  #244C5E;
    --md-on-tertiary-container:#C1E8FB;

    --md-error:               #FFB4AB;
    --md-on-error:            #690005;
    --md-error-container:     #93000A;
    --md-on-error-container:  #FFDAD6;

    --md-surface:             #0F1512;
    --md-on-surface:          #DEE4DF;
    --md-surface-variant:     #3F4945;
    --md-on-surface-variant:  #BFC9C3;
    --md-surface-container:   #1B2120;
    --md-surface-container-low: #171D1A;
    --md-surface-container-high:#252B28;

    --md-outline:             #899490;
    --md-outline-variant:     #3F4945;

    --md-background:          #0F1512;
    --md-on-background:       #DEE4DF;
  }
}

/* ---------------------------------------------------------------
   BASE RESET & BODY
   --------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--md-font-body);
  background-color: var(--md-background);
  color: var(--md-on-background);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------------------------------------------------------------
   TOP APP BAR (Material You Navigation Bar)
   --------------------------------------------------------------- */
.app-bar {
  background-color: var(--md-surface-container-low);
  border-bottom: 1px solid var(--md-outline-variant);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--md-shadow-1);
}

.app-bar__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.app-bar__logo {
  font-family: var(--md-font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--md-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.app-bar__logo span {
  color: var(--md-on-surface);
  font-weight: 400;
}

/* Search bar in top bar */
.app-bar__search {
  flex: 1;
  max-width: 480px;
  position: relative;
}

.app-bar__search input {
  width: 100%;
  padding: var(--space-2) var(--space-4) var(--space-2) 44px;
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-full);
  font-family: var(--md-font-body);
  font-size: 0.9rem;
  color: var(--md-on-surface);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.app-bar__search input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--md-primary) 20%, transparent);
}

.app-bar__search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--md-on-surface-variant);
  font-size: 1.2rem;
  pointer-events: none;
}

/* Nav links on the right */
.app-bar__nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.app-bar__nav a,
.app-bar__nav button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--md-shape-full);
  font-family: var(--md-font-body);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--md-on-surface-variant);
  border: none;
  background: transparent;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
}

.app-bar__nav a:hover,
.app-bar__nav button:hover {
  background-color: var(--md-surface-container);
  color: var(--md-on-surface);
}

/* ---------------------------------------------------------------
   MAIN LAYOUT
   --------------------------------------------------------------- */
.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5);
  width: 100%;
  flex: 1;
}

/* Two-column layout: sidebar + content */
.layout--two-col {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-6);
  align-items: start;
}

@media (max-width: 768px) {
  .layout--two-col {
    grid-template-columns: 1fr; /* stack on mobile */
  }
  .sidebar {
    order: 2; /* sidebar goes below content on mobile */
  }
}

/* ---------------------------------------------------------------
   SIDEBAR
   --------------------------------------------------------------- */
.sidebar {
  position: sticky;
  top: 80px;
}

.sidebar__section {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-large);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.sidebar__title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--md-on-surface-variant);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--md-outline-variant);
}

.sidebar__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--md-shape-small);
  font-size: 0.9rem;
  color: var(--md-on-surface);
  text-decoration: none;
  transition: background-color 0.15s;
  margin-bottom: var(--space-1);
}

.sidebar__link:hover {
  background-color: var(--md-surface-container);
}

.sidebar__link--active {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
  font-weight: 600;
}

/* ---------------------------------------------------------------
   CARDS (Material You surface containers)
   --------------------------------------------------------------- */
.card {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-large);
  padding: var(--space-5);
  box-shadow: var(--md-shadow-1);
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: var(--md-shadow-2);
}

.card--filled {
  background: var(--md-surface-container);
  border-color: transparent;
}

/* ---------------------------------------------------------------
   TYPOGRAPHY
   --------------------------------------------------------------- */
h1, h2, h3, h4, h5 {
  font-family: var(--md-font-display);
  color: var(--md-on-surface);
  line-height: 1.25;
}

h1 { font-size: 2rem; margin-bottom: var(--space-4); }
h2 { font-size: 1.5rem; margin-bottom: var(--space-3); }
h3 { font-size: 1.2rem; margin-bottom: var(--space-3); }

.page-title {
  font-size: 2.2rem;
  color: var(--md-on-surface);
  margin-bottom: var(--space-2);
  font-family: var(--md-font-display);
}

.page-subtitle {
  color: var(--md-on-surface-variant);
  font-size: 0.95rem;
  margin-bottom: var(--space-6);
}

/* ---------------------------------------------------------------
   BUTTONS (Material You style)
   --------------------------------------------------------------- */

/* Filled button — primary action */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px var(--space-5);
  border-radius: var(--md-shape-full);
  font-family: var(--md-font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background-color 0.15s, box-shadow 0.15s, transform 0.1s;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

/* Filled (primary) */
.btn--filled {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-shadow-1);
}

.btn--filled:hover {
  background-color: color-mix(in srgb, var(--md-primary) 90%, black);
  box-shadow: var(--md-shadow-2);
}

/* Tonal (secondary action) */
.btn--tonal {
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.btn--tonal:hover {
  background-color: color-mix(in srgb, var(--md-secondary-container) 85%, black);
}

/* Outlined (tertiary action) */
.btn--outlined {
  background-color: transparent;
  color: var(--md-primary);
  border: 1.5px solid var(--md-outline);
}

.btn--outlined:hover {
  background-color: var(--md-primary-container);
}

/* Danger */
.btn--danger {
  background-color: var(--md-error);
  color: var(--md-on-error);
}

.btn--danger:hover {
  background-color: color-mix(in srgb, var(--md-error) 85%, black);
}

/* Small variant */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: 0.8rem;
}

/* ---------------------------------------------------------------
   FORMS
   --------------------------------------------------------------- */
.form-field {
  margin-bottom: var(--space-4);
}

.form-field label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  margin-bottom: var(--space-2);
}

.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"],
.form-field textarea,
.form-field select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--md-surface);
  border: 1.5px solid var(--md-outline-variant);
  border-radius: var(--md-shape-medium);
  font-family: var(--md-font-body);
  font-size: 1rem;
  color: var(--md-on-surface);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-primary) 15%, transparent);
}

.form-field textarea {
  min-height: 320px;
  resize: vertical;
  font-family: var(--md-font-mono);
  font-size: 0.9rem;
  line-height: 1.7;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
  margin-top: var(--space-1);
}

/* Checkbox with label */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--md-surface-container);
  border-radius: var(--md-shape-medium);
  cursor: pointer;
  transition: background-color 0.15s;
}

.form-check:hover {
  background: var(--md-surface-container-high);
}

.form-check input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--md-primary);
  cursor: pointer;
}

/* Inline form actions (e.g. submit + cancel) */
.form-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-5);
  flex-wrap: wrap;
}

/* ---------------------------------------------------------------
   ALERTS / BANNERS
   --------------------------------------------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--md-shape-medium);
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
}

.alert--error {
  background-color: var(--md-error-container);
  color: var(--md-on-error-container);
  border: 1px solid color-mix(in srgb, var(--md-error) 30%, transparent);
}

.alert--success {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border: 1px solid color-mix(in srgb, var(--md-primary) 30%, transparent);
}

/* ---------------------------------------------------------------
   WIKI CONTENT — rendered Markdown HTML
   --------------------------------------------------------------- */
.wiki-content {
  line-height: 1.8;
  color: var(--md-on-surface);
}

.wiki-content h1,
.wiki-content h2,
.wiki-content h3,
.wiki-content h4 {
  font-family: var(--md-font-display);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--md-outline-variant);
}

.wiki-content p {
  margin-bottom: var(--space-4);
}

.wiki-content a {
  color: var(--md-primary);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--md-primary) 40%, transparent);
  text-underline-offset: 3px;
}

.wiki-content a:hover {
  text-decoration-color: var(--md-primary);
}

.wiki-content code {
  font-family: var(--md-font-mono);
  font-size: 0.875em;
  background: var(--md-surface-container);
  padding: 2px 6px;
  border-radius: var(--md-shape-extra-small);
  color: var(--md-tertiary);
}

.wiki-content pre {
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-medium);
  padding: var(--space-4);
  overflow-x: auto;
  margin-bottom: var(--space-4);
}

.wiki-content pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  color: var(--md-on-surface);
}

.wiki-content blockquote {
  border-left: 4px solid var(--md-primary);
  margin: var(--space-4) 0;
  padding: var(--space-3) var(--space-4);
  background: var(--md-surface-container);
  border-radius: 0 var(--md-shape-medium) var(--md-shape-medium) 0;
  color: var(--md-on-surface-variant);
  font-style: italic;
}

.wiki-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-5);
  font-size: 0.9rem;
  border-radius: var(--md-shape-medium);
  overflow: hidden;
  border: 1px solid var(--md-outline-variant);
}

.wiki-content th {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  font-weight: 700;
  padding: var(--space-3) var(--space-4);
  text-align: left;
}

.wiki-content td {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--md-outline-variant);
}

.wiki-content tr:nth-child(even) td {
  background: var(--md-surface-container-low);
}

.wiki-content img {
  max-width: 100%;
  border-radius: var(--md-shape-medium);
}

.wiki-content ul,
.wiki-content ol {
  margin: var(--space-3) 0 var(--space-4) var(--space-6);
}

.wiki-content li {
  margin-bottom: var(--space-2);
}

/* ---------------------------------------------------------------
   PAGE LIST (home page)
   --------------------------------------------------------------- */
.page-list {
  display: grid;
  gap: var(--space-3);
}

.page-list__item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-large);
  text-decoration: none;
  transition: background-color 0.15s, box-shadow 0.15s;
}

.page-list__item:hover {
  background-color: var(--md-surface-container);
  box-shadow: var(--md-shadow-1);
}

.page-list__title {
  font-family: var(--md-font-display);
  font-size: 1.05rem;
  color: var(--md-primary);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.page-list__meta {
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
}

/* ---------------------------------------------------------------
   HISTORY TABLE
   --------------------------------------------------------------- */
.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.history-table th {
  background: var(--md-surface-container);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.history-table td {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--md-outline-variant);
  vertical-align: middle;
}

/* ---------------------------------------------------------------
   CHIPS / BADGES
   --------------------------------------------------------------- */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--md-shape-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.chip--primary {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.chip--secondary {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.chip--public {
  background: #C8E6C9;
  color: #1B5E20;
}

.chip--private {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
}

/* ---------------------------------------------------------------
   FOOTER
   --------------------------------------------------------------- */
footer {
  background: var(--md-surface-container-low);
  border-top: 1px solid var(--md-outline-variant);
  padding: var(--space-5);
  text-align: center;
  font-size: 0.82rem;
  color: var(--md-on-surface-variant);
  margin-top: auto;
}

footer a {
  color: var(--md-primary);
  text-decoration: none;
}

/* ---------------------------------------------------------------
   UTILITY CLASSES
   --------------------------------------------------------------- */
.text-muted   { color: var(--md-on-surface-variant); }
.text-primary { color: var(--md-primary); }
.text-danger  { color: var(--md-error); }
.text-sm      { font-size: 0.875rem; }
.text-xs      { font-size: 0.78rem; }
.fw-bold      { font-weight: 700; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }

/* ---------------------------------------------------------------
   EMPTY STATE
   --------------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  color: var(--md-on-surface-variant);
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  display: block;
}

.empty-state__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--md-on-surface);
  margin-bottom: var(--space-2);
}

/* ---------------------------------------------------------------
   RESPONSIVE
   --------------------------------------------------------------- */
@media (max-width: 600px) {
  .app-bar__inner {
    flex-wrap: wrap;
    padding: var(--space-2) var(--space-3);
  }

  .app-bar__search {
    order: 3;
    flex: 100%;
    max-width: 100%;
  }

  .layout {
    padding: var(--space-4) var(--space-3);
  }

  .page-title {
    font-size: 1.6rem;
  }

  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.3rem; }
}