/*
Theme Name: History Archives
Theme URI: https://historyarchives.com
Author: History Archives
Author URI: https://historyarchives.com
Description: A dark, scholarly WordPress theme for history education. Features continent-based categories, country subcategories, political figures, and built-in quizzes. Students can read and take quizzes without logging in.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: dark, education, history, blog, quiz, custom-menu, featured-images, threaded-comments
Text Domain: history-archives
*/

/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root {
  /* Dark mode (default) */
  --bg-primary:    #0d0f14;
  --bg-secondary:  #13161e;
  --bg-surface:    #1a1e2a;
  --bg-elevated:   #222736;
  --border:        #2c3245;
  --text-primary:  #e8eaf0;
  --text-secondary:#9aa0b4;
  --text-muted:    #5c6278;
  --accent:        #4a8fc4;
  --accent-hover:  #6aaee0;
  --accent-dim:    rgba(74,143,196,0.15);
  --accent-glow:   rgba(74,143,196,0.08);
  --danger:        #c44a4a;
  --success:       #4ac47a;
  --warning:       #c4a44a;
  --radius-sm:     4px;
  --radius-md:     8px;
  --radius-lg:     14px;
  --shadow-sm:     0 1px 4px rgba(0,0,0,0.4);
  --shadow-md:     0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:     0 8px 40px rgba(0,0,0,0.6);
  --font-display:  'Playfair Display', Georgia, serif;
  --font-body:     'Source Serif 4', 'Georgia', serif;
  --font-ui:       'Inter', system-ui, sans-serif;
  --transition:    0.22s ease;
}

[data-theme="light"] {
  --bg-primary:    #f5f3ef;
  --bg-secondary:  #edeae4;
  --bg-surface:    #ffffff;
  --bg-elevated:   #f9f8f5;
  --border:        #d8d3c8;
  --text-primary:  #1a1714;
  --text-secondary:#4a4540;
  --text-muted:    #8a8278;
  --accent:        #2c6fa0;
  --accent-hover:  #1a5480;
  --accent-dim:    rgba(44,111,160,0.1);
  --accent-glow:   rgba(44,111,160,0.05);
  --shadow-sm:     0 1px 4px rgba(0,0,0,0.08);
  --shadow-md:     0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg:     0 8px 40px rgba(0,0,0,0.15);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  transition: background-color var(--transition), color var(--transition);
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }
ul, ol { padding-left: 1.5rem; }

/* =========================================================
   TYPOGRAPHY
   ========================================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.25;
  color: var(--text-primary);
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.2rem; }
h5 { font-size: 1rem; font-family: var(--font-ui); letter-spacing: 0.08em; text-transform: uppercase; }

p { margin-bottom: 1.25rem; }
p:last-child { margin-bottom: 0; }

blockquote {
  border-left: 3px solid var(--accent);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: var(--accent-glow);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-secondary);
}

code {
  font-family: monospace;
  background: var(--bg-elevated);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  color: var(--accent);
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* =========================================================
   LAYOUT
   ========================================================= */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--narrow {
  max-width: 840px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1;
  padding: 3rem 0 5rem;
}

.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .content-with-sidebar {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   SKIP LINK
   ========================================================= */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  z-index: 9999;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.9rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.site-branding {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.site-branding__icon {
  width: 38px;
  height: 38px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
  font-weight: 900;
  font-family: var(--font-display);
  letter-spacing: -0.05em;
  flex-shrink: 0;
}

.site-branding__name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.site-branding__tagline {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-header__controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Toggle */
.theme-toggle {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.35rem 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.theme-toggle__icon { font-size: 0.9rem; }

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1.1rem;
}

@media (max-width: 768px) {
  .menu-toggle { display: flex; }
}

/* =========================================================
   NAVIGATION
   ========================================================= */
.main-navigation {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.main-navigation__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.main-navigation ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.main-navigation li {
  position: relative;
}

.main-navigation a {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.75rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a,
.main-navigation .current-menu-ancestor > a {
  color: var(--accent);
  background: var(--accent-glow);
}

/* Dropdown */
.main-navigation .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  min-width: 220px;
  padding: 0.5rem 0;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  flex-direction: column;
}

.main-navigation .sub-menu .sub-menu {
  top: 0;
  left: 100%;
}

.main-navigation li:hover > .sub-menu,
.main-navigation li:focus-within > .sub-menu {
  display: flex;
}

.main-navigation .sub-menu a {
  padding: 0.55rem 1.2rem;
  font-size: 0.82rem;
  width: 100%;
}

.main-navigation .menu-item-has-children > a::after {
  content: '›';
  font-size: 1rem;
  opacity: 0.5;
  margin-left: auto;
}

@media (max-width: 768px) {
  .main-navigation {
    display: none;
  }
  .main-navigation.is-open {
    display: block;
  }
  .main-navigation ul {
    flex-direction: column;
  }
  .main-navigation .sub-menu {
    position: static;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--accent-dim);
    border-radius: 0;
    padding-left: 1rem;
    margin-left: 1rem;
    display: flex;
    background: transparent;
  }
  .main-navigation .sub-menu .sub-menu {
    left: 0;
  }
}

/* =========================================================
   HERO / BANNER
   ========================================================= */
.site-hero {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 4rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.site-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, var(--accent-dim), transparent);
  pointer-events: none;
}

.site-hero__eyebrow {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.site-hero__eyebrow::before,
.site-hero__eyebrow::after {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.site-hero h1 { margin-bottom: 1rem; }
.site-hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 2rem;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
  line-height: 1;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-hover);
  color: #fff;
  box-shadow: 0 0 20px rgba(74,143,196,0.3);
}

.btn--outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn--outline:hover {
  background: var(--accent);
  color: #fff;
}

.btn--ghost {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
}

/* =========================================================
   CONTINENT CARDS (Homepage)
   ========================================================= */
.continent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.continent-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
  display: block;
}

.continent-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
  color: var(--text-primary);
}

.continent-card__banner {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.continent-card__banner::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(transparent, var(--bg-surface));
}

.continent-card__body { padding: 1.25rem; }
.continent-card__name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}
.continent-card__meta {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* =========================================================
   POST CARDS
   ========================================================= */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}

.post-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.post-card__thumbnail {
  aspect-ratio: 16/9;
  background: var(--bg-elevated);
  overflow: hidden;
  position: relative;
}

.post-card__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.post-card:hover .post-card__thumbnail img {
  transform: scale(1.04);
}

.post-card__thumbnail-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-muted);
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-secondary));
}

.post-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.post-card__cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.post-card__cat-tag {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.2rem 0.55rem;
  border-radius: 100px;
  text-decoration: none;
  transition: background var(--transition);
}

.post-card__cat-tag:hover {
  background: var(--accent);
  color: #fff;
}

.post-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
}

.post-card__title a {
  color: inherit;
  text-decoration: none;
}
.post-card__title a:hover { color: var(--accent); }

.post-card__excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.post-card__date-author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* =========================================================
   SINGLE POST
   ========================================================= */
.single-post {
  max-width: 840px;
}

.post-header {
  margin-bottom: 2.5rem;
}

.post-header__cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.breadcrumb {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb__sep { opacity: 0.4; }

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.post-meta__item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.post-featured-image {
  width: 100%;
  border-radius: var(--radius-lg);
  margin: 2rem 0;
  border: 1px solid var(--border);
  overflow: hidden;
}

.post-featured-image img {
  width: 100%;
  height: auto;
  max-height: 460px;
  object-fit: cover;
}

.post-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-primary);
}

.post-content h2 { margin: 2.5rem 0 1rem; }
.post-content h3 { margin: 2rem 0 0.75rem; }
.post-content h4 { margin: 1.5rem 0 0.5rem; }
.post-content p { margin-bottom: 1.5rem; }
.post-content ul, .post-content ol { margin-bottom: 1.5rem; }
.post-content li { margin-bottom: 0.35rem; }
.post-content img {
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin: 1.5rem 0;
}

.post-tags {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.post-tags__label {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tag-pill {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
  text-decoration: none;
  transition: all var(--transition);
}
.tag-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Author Box */
.author-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-top: 3rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.author-box__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg-elevated);
}

.author-box__avatar img { width: 100%; height: 100%; object-fit: cover; }

.author-box__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.author-box__role {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.author-box__bio { font-size: 0.9rem; color: var(--text-secondary); }

@media (max-width: 560px) {
  .author-box { flex-direction: column; }
}

/* =========================================================
   SIDEBAR
   ========================================================= */
.sidebar {
  position: sticky;
  top: 120px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.widget {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.widget__header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.widget__body { padding: 1.25rem; }

.category-tree { list-style: none; padding: 0; }

.category-tree > li { border-bottom: 1px solid var(--border); }
.category-tree > li:last-child { border-bottom: none; }

.category-tree__continent {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  gap: 0.5rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: color var(--transition);
}

.category-tree__continent:hover { color: var(--accent); }

.category-tree__toggle {
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.category-tree__continent.is-open .category-tree__toggle {
  transform: rotate(90deg);
}

.category-tree__countries {
  list-style: none;
  padding: 0 0 0.5rem 1rem;
  display: none;
}

.category-tree__countries.is-open { display: block; }

.category-tree__countries li { margin-bottom: 0.2rem; }

.category-tree__countries a {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 0.3rem 0;
  display: block;
  transition: color var(--transition);
  text-decoration: none;
}

.category-tree__countries a:hover { color: var(--accent); }

/* =========================================================
   QUIZ COMPONENT
   ========================================================= */
.quiz-section {
  margin: 4rem 0;
  padding: 2.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.quiz-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
}

.quiz-section__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.quiz-section__icon {
  width: 46px;
  height: 46px;
  background: var(--accent-dim);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.quiz-section__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0;
}

.quiz-section__subtitle {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.quiz-progress {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.quiz-progress__bar {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
}

.quiz-progress__fill {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  transition: width 0.4s ease;
}

.quiz-question {
  display: none;
}

.quiz-question.is-active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.quiz-question__text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  line-height: 1.4;
  color: var(--text-primary);
}

.quiz-options {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-align: left;
  width: 100%;
  line-height: 1.4;
}

.quiz-option:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--accent-glow);
}

.quiz-option__letter {
  width: 26px;
  height: 26px;
  min-width: 26px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: all var(--transition);
}

.quiz-option.is-correct {
  border-color: var(--success);
  background: rgba(74, 196, 122, 0.08);
  color: var(--success);
}

.quiz-option.is-correct .quiz-option__letter {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}

.quiz-option.is-wrong {
  border-color: var(--danger);
  background: rgba(196, 74, 74, 0.08);
  color: var(--danger);
}

.quiz-option.is-wrong .quiz-option__letter {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.quiz-option:disabled { cursor: default; }

.quiz-feedback {
  margin-top: 1rem;
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-size: 0.88rem;
  display: none;
  animation: fadeIn 0.3s ease;
}

.quiz-feedback.is-visible { display: flex; align-items: flex-start; gap: 0.6rem; }

.quiz-feedback--correct {
  background: rgba(74, 196, 122, 0.1);
  border: 1px solid rgba(74, 196, 122, 0.3);
  color: var(--success);
}

.quiz-feedback--wrong {
  background: rgba(196, 74, 74, 0.1);
  border: 1px solid rgba(196, 74, 74, 0.3);
  color: var(--danger);
}

.quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

/* Quiz Results */
.quiz-results {
  display: none;
  text-align: center;
  padding: 1rem 0;
  animation: fadeIn 0.4s ease;
}

.quiz-results.is-visible { display: block; }

.quiz-results__score {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.quiz-results__label {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.quiz-results__message {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.quiz-results__details {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

/* =========================================================
   PAGINATION
   ========================================================= */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3rem;
  font-family: var(--font-ui);
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition);
}

.pagination a:hover { border-color: var(--accent); color: var(--accent); }

.pagination .current {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

/* =========================================================
   SEARCH
   ========================================================= */
.search-form {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-elevated);
  transition: border-color var(--transition);
}

.search-form:focus-within { border-color: var(--accent); }

.search-form input[type="search"] {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.65rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
}

.search-form input[type="search"]::placeholder { color: var(--text-muted); }

.search-form button {
  background: var(--accent);
  border: none;
  padding: 0 1rem;
  color: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background var(--transition);
}

.search-form button:hover { background: var(--accent-hover); }

/* =========================================================
   NO COMMENTS NOTICE
   ========================================================= */
.no-comments-notice {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  margin-top: 3rem;
}

.no-comments-notice__icon { font-size: 2rem; margin-bottom: 0.75rem; }

.no-comments-notice h3 {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.no-comments-notice p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* =========================================================
   404 / EMPTY STATES
   ========================================================= */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
}

.empty-state__icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h2 { font-size: 1.5rem; margin-bottom: 0.75rem; }
.empty-state p { color: var(--text-secondary); max-width: 400px; margin: 0 auto 2rem; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 1.5rem 1.5rem;
}

.site-footer__grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
  .site-footer__grid { grid-template-columns: 1fr; gap: 2rem; }
}

.site-footer__about .site-branding { margin-bottom: 1rem; }
.site-footer__about p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }

.site-footer__col-title {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }

.site-footer__bottom {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* =========================================================
   SECTION HEADINGS
   ========================================================= */
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section-heading h2 { font-size: 1.5rem; margin: 0; }
.section-heading__link { font-family: var(--font-ui); font-size: 0.82rem; }

/* =========================================================
   ALERTS / NOTICES
   ========================================================= */
.notice {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border-left: 3px solid;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  margin: 1.5rem 0;
}

.notice--info {
  background: rgba(74, 143, 196, 0.1);
  border-color: var(--accent);
  color: var(--text-secondary);
}

/* =========================================================
   UTILITIES
   ========================================================= */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }

/* =========================================================
   WP CORE CLASSES
   ========================================================= */
.wp-block-image img { border-radius: var(--radius-md); }
.aligncenter { text-align: center; margin: 1.5rem auto; }
.alignleft { float: left; margin: 0.5rem 1.5rem 1rem 0; }
.alignright { float: right; margin: 0.5rem 0 1rem 1.5rem; }
.wp-caption-text { font-size: 0.82rem; color: var(--text-muted); text-align: center; margin-top: 0.35rem; font-family: var(--font-ui); }

/* Screen reader text */
.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}