/*
 Theme Name:   LearnFun
 Theme URI:    https://learnfun.org
 Description:  Custom theme for LearnFun.org — Study Aids Made to Stick. Based on Stitch MD3 design system.
 Author:       MRP3 Labs
 Author URI:   https://github.com/mrp3-labs
 Version:      1.0.0
 Text Domain:  learnfun
 Requires at least: 6.0
 Requires PHP: 8.0
*/

/* ============================================================
   LearnFun Design System — Stitch MD3 Colors
   ============================================================ */

:root {
  /* Primary */
  --lf-primary: #24389c;
  --lf-primary-container: #3f51b5;
  --lf-on-primary: #ffffff;
  --lf-primary-fixed: #dee0ff;

  /* Secondary */
  --lf-secondary: #556158;
  --lf-secondary-container: #d9e6da;
  --lf-on-secondary: #ffffff;

  /* Tertiary / Accent */
  --lf-tertiary: #574000;
  --lf-tertiary-fixed: #ffdf9e;
  --lf-tertiary-fixed-dim: #fabd00;

  /* Surface */
  --lf-surface: #fbf8ff;
  --lf-surface-container-lowest: #ffffff;
  --lf-surface-container-low: #f4f2fc;
  --lf-surface-container: #efedf6;
  --lf-surface-container-high: #e9e7f0;
  --lf-on-surface: #1b1b22;
  --lf-on-surface-variant: #45454e;

  /* Outline */
  --lf-outline: #757684;
  --lf-outline-variant: #c5c5d4;

  /* Error */
  --lf-error: #ba1a1a;

  /* Font */
  --lf-font: 'Inter', system-ui, -apple-system, sans-serif;

  /* Shadows */
  --lf-shadow-card: 0 1px 3px rgba(36, 56, 156, 0.04);
  --lf-shadow-hover: 0 32px 48px -12px rgba(36, 56, 156, 0.06);
}

/* ============================================================
   Base
   ============================================================ */
body {
  font-family: var(--lf-font) !important;
  background-color: var(--lf-surface) !important;
  color: var(--lf-on-surface) !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--lf-font) !important;
  color: var(--lf-on-surface) !important;
  letter-spacing: -0.02em;
}

h1 { font-weight: 900; }
h2 { font-weight: 700; }
h3 { font-weight: 700; }

a {
  color: var(--lf-primary);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--lf-primary-container);
}

/* ============================================================
   Header / Navigation
   ============================================================ */
.site-header,
#masthead {
  background: rgba(255, 255, 255, 0.8) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--lf-outline-variant);
  box-shadow: none !important;
}

.site-branding .site-title a,
.main-title a {
  font-weight: 900 !important;
  font-size: 1.5rem !important;
  color: var(--lf-primary) !important;
  letter-spacing: -0.03em;
}

.main-navigation ul,
.primary-menu,
#primary-menu {
  list-style: none !important;
  display: flex !important;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  align-items: center;
}

.main-navigation li,
.primary-menu li {
  list-style: none !important;
  margin: 0;
  padding: 0;
}

.main-navigation a,
.menu-item a,
#primary-menu a {
  font-size: 0.875rem !important;
  font-weight: 600 !important;
  color: var(--lf-on-surface-variant) !important;
  letter-spacing: 0.02em;
  text-transform: none !important;
  transition: color 0.2s;
  text-decoration: none;
}

.main-navigation a:hover,
.menu-item a:hover,
#primary-menu a:hover {
  color: var(--lf-primary) !important;
}

.current-menu-item a {
  color: var(--lf-primary) !important;
}

/* Hide page title when it duplicates content */
.page .entry-title {
  display: none;
}

/* ============================================================
   Content Area
   ============================================================ */
.site-content,
.content-area,
#content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.entry-content {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--lf-on-surface);
}

/* ============================================================
   Cards (for blog posts and outline pages)
   ============================================================ */
article.post,
article.page {
  background: var(--lf-surface-container-lowest);
  border-radius: 1rem;
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--lf-shadow-card);
  transition: box-shadow 0.3s, transform 0.2s;
  border: none;
}

article.post:hover {
  box-shadow: var(--lf-shadow-hover);
}

.entry-title {
  font-size: 1.75rem;
  font-weight: 800;
}

.entry-title a {
  color: var(--lf-on-surface);
}

.entry-title a:hover {
  color: var(--lf-primary);
}

.entry-meta {
  font-size: 0.75rem;
  color: var(--lf-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

/* Category/tag badges */
.cat-links a,
.tag-links a,
.entry-categories a {
  display: inline-block;
  background: var(--lf-secondary-container);
  color: var(--lf-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   Sidebar
   ============================================================ */
.widget-area,
#secondary {
  background: var(--lf-surface-container-lowest);
  border-radius: 1rem;
  padding: 1.5rem;
}

.widget-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--lf-on-surface-variant);
  border-bottom: 2px solid var(--lf-primary);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

/* ============================================================
   Buttons
   ============================================================ */
.wp-block-button__link,
button,
input[type="submit"],
.button,
a.button {
  background: linear-gradient(135deg, var(--lf-primary), var(--lf-primary-container)) !important;
  color: var(--lf-on-primary) !important;
  border: none !important;
  border-radius: 999px !important;
  padding: 0.75rem 2rem !important;
  font-weight: 700 !important;
  font-size: 0.875rem !important;
  font-family: var(--lf-font) !important;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  text-transform: none !important;
  letter-spacing: 0;
}

.wp-block-button__link:hover,
button:hover,
input[type="submit"]:hover,
.button:hover {
  opacity: 0.9;
  transform: scale(0.98);
}

/* Secondary button */
.is-style-outline .wp-block-button__link {
  background: transparent !important;
  color: var(--lf-primary) !important;
  border: 2px solid var(--lf-primary) !important;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer,
#colophon {
  background: var(--lf-surface-container-lowest) !important;
  border-top: 1px solid var(--lf-outline-variant);
  color: var(--lf-on-surface-variant);
  font-size: 0.875rem;
}

.site-footer a {
  color: var(--lf-on-surface-variant);
}

.site-footer a:hover {
  color: var(--lf-primary);
}

/* ============================================================
   Bar Exam Outline Pages (hierarchical pages)
   ============================================================ */
.page-template-default .entry-content h1 {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.page-template-default .entry-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--lf-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--lf-primary-fixed);
}

.page-template-default .entry-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--lf-on-surface);
  margin-top: 1.5rem;
}

/* Exam tip callouts */
.page-template-default .entry-content blockquote {
  background: var(--lf-tertiary-fixed);
  border-left: 4px solid var(--lf-tertiary-fixed-dim);
  border-radius: 0 1rem 1rem 0;
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  font-style: normal;
  color: var(--lf-tertiary);
}

.page-template-default .entry-content blockquote strong {
  color: var(--lf-tertiary);
}

/* Bold terms */
.page-template-default .entry-content strong {
  color: var(--lf-on-surface);
  font-weight: 700;
}

/* Lists in outlines */
.page-template-default .entry-content ul,
.page-template-default .entry-content ol {
  padding-left: 1.5rem;
}

.page-template-default .entry-content li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

/* Subject badge at top of outline pages */
.lf-subject-badge {
  display: inline-block;
  background: var(--lf-secondary-container);
  color: var(--lf-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

/* Mastery/progress bar */
.lf-progress-bar {
  width: 100%;
  height: 0.5rem;
  background: var(--lf-surface-container-high);
  border-radius: 999px;
  overflow: hidden;
  margin: 0.5rem 0;
}

.lf-progress-fill {
  height: 100%;
  background: var(--lf-tertiary-fixed-dim);
  border-radius: 999px;
}

/* ============================================================
   Breadcrumb Navigation (for bar exam hierarchy)
   ============================================================ */
.lf-breadcrumb {
  font-size: 0.75rem;
  color: var(--lf-on-surface-variant);
  margin-bottom: 1rem;
}

.lf-breadcrumb a {
  color: var(--lf-on-surface-variant);
}

.lf-breadcrumb a:hover {
  color: var(--lf-primary);
}

.lf-breadcrumb .separator {
  margin: 0 0.5rem;
  opacity: 0.5;
}

/* ============================================================
   Search
   ============================================================ */
.search-form input[type="search"],
input.search-field {
  background: var(--lf-surface-container-high);
  border: none;
  border-radius: 999px;
  padding: 0.625rem 1.5rem;
  font-family: var(--lf-font);
  font-size: 0.875rem;
  color: var(--lf-on-surface);
}

.search-form input[type="search"]:focus {
  outline: 2px solid var(--lf-primary);
  outline-offset: 0;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .site-content,
  .content-area {
    padding: 1rem;
  }

  article.post,
  article.page {
    padding: 1.25rem;
    border-radius: 0.75rem;
  }

  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.25rem; }
}

/* ============================================================
   Hide Divi/WooCommerce remnants
   ============================================================ */
.et_pb_section,
.et_pb_row,
.et-db,
#et-boc,
.woocommerce-breadcrumb,
.woocommerce-result-count,
.woocommerce-ordering {
  display: none !important;
}