/**
 * Base Theme — Layout
 *
 * Structural layout for all sites: containers, sections, header,
 * navigation (navbar system), footer, content areas, responsive.
 * All values via CSS variables — no hardcoded colors.
 */

/* ══════════════════════════════════════════════════════════════
   CONTAINERS & SECTIONS
   ══════════════════════════════════════════════════════════════ */

.container {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  width: 100%;
  padding: var(--space-xl) var(--space-md);
  background: var(--bg);
}

.section:nth-child(even) {
  background: var(--bg-alt);
}

.section--alt {
  background: var(--bg-alt);
}

.section__inner {
  max-width: var(--wide-width);
  margin: 0 auto;
}

.section__inner--narrow,
.section__inner--content {
  max-width: var(--content-width);
}

.section__inner--wide {
  max-width: var(--wide-width);
}

/* Section headers */
.section__header {
  margin-bottom: var(--space-lg);
}

.section__header--center {
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-xl);
}

.section__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-sm);
  font-weight: 700;
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--text-light);
  margin: 0;
  line-height: 1.6;
}

.section__title--accent {
  position: relative;
  padding-top: var(--space-md);
}

.section__title--accent::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--accent);
}

.section__header--center .section__title--accent::before {
  left: 50%;
  transform: translateX(-50%);
}

/* Layout variants */
.layout-content .container { max-width: var(--content-width); }
.layout-wide .container { max-width: var(--wide-width); }
.layout-full .container { max-width: none; padding: 0; }

/* ══════════════════════════════════════════════════════════════
   SITE HEADER
   ══════════════════════════════════════════════════════════════ */

.site-header {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  background: var(--header-bg);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
}

.site-header img {
  max-width: 150px;
  height: auto;
  display: block;
}

.site-header__text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  line-height: 1.2;
  margin: 0;
}

.site-title:hover {
  color: var(--accent);
}

.site-tagline {
  color: var(--text-light);
  font-size: var(--text-sm);
  margin: 0;
  line-height: 1.3;
}

@media (max-width: 767px) {
  .site-header .container {
    flex-direction: column;
    text-align: center;
  }
  .site-header__brand {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* ══════════════════════════════════════════════════════════════
   NAVBAR (navigation.php class system)
   ══════════════════════════════════════════════════════════════ */

.navbar {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  padding: var(--space-xs) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.navbar-logo {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.navbar-logo:visited,
.navbar-logo:hover,
.navbar-logo:active {
  color: var(--text);
  text-decoration: none;
}

.navbar-menu {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.navbar-link {
  color: var(--text-light);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
  text-align: left;
}

.navbar-link:visited {
  color: var(--text-light);
  text-decoration: none;
}

button.navbar-link {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--text);
  background: var(--bg-alt);
}

/* Dropdown toggle */
.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.dropdown-arrow {
  font-size: var(--text-xs);
  transition: transform var(--transition);
  display: inline-block;
}

.navbar-dropdown:hover .dropdown-arrow,
.navbar-dropdown:focus-within .dropdown-arrow,
.navbar-dropdown.active .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown container */
.navbar-dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  visibility: hidden;
  opacity: 0;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-xs) 0;
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  transition: opacity 0.15s ease, visibility 0.15s ease;
  z-index: 1000;
}

/* Gap bridge for hover */
.navbar-dropdown::before {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 4px;
  background: transparent;
}

/* Desktop hover */
@media (min-width: 769px) {
  .navbar-dropdown:hover .dropdown-menu,
  .navbar-dropdown:focus-within .dropdown-menu,
  .navbar-dropdown:hover::before,
  .navbar-dropdown:focus-within::before {
    display: block;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }
}

/* Mobile active state */
.dropdown-menu.active,
.navbar-dropdown.active .dropdown-menu {
  display: block;
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.navbar-dropdown.active::before {
  display: block;
}

.navbar-dropdown:hover .dropdown-toggle,
.navbar-dropdown:focus-within .dropdown-toggle {
  background: var(--bg-alt);
}

/* Dropdown items */
.dropdown-header {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  cursor: default;
  line-height: 1.4;
}

.dropdown-header.clickable-header {
  cursor: pointer;
  transition: color 0.15s ease;
}

.dropdown-header.clickable-header:hover {
  color: var(--accent);
  text-decoration: underline;
}

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  color: var(--text-light);
  font-size: var(--text-sm);
  text-decoration: none;
}

.dropdown-menu a:visited {
  color: var(--text-light);
  text-decoration: none;
}

.dropdown-menu a:hover {
  background: var(--bg-alt);
  color: var(--text);
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-xs) 0;
  border: none;
  padding: 0;
}

.dropdown-all {
  border-top: 1px solid var(--border);
  margin-top: var(--space-xs);
  padding-top: var(--space-xs);
}

/* Mega menu */
.mega-menu {
  min-width: 600px;
  max-width: 800px;
  padding: var(--space-sm) 0;
}

.mega-menu-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  padding: 0 var(--space-sm);
}

.learn-mega-menu {
  min-width: 800px;
  left: 50%;
  transform: translateX(-50%);
}

/* grid-template-columns set via inline style from navigation.php (adapts to column count) */
.learn-mega-menu .mega-menu-content.learn-grid {
  gap: var(--space-sm);
}

.mega-menu-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

/* Navbar toggle (mobile hamburger) */
.navbar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: none;
  border: none;
  color: var(--text);
  font-size: var(--text-sm);
  cursor: pointer;
  font-family: inherit;
}

.hamburger-icon {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 20px;
}

.hamburger-icon span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--transition);
}

/* Badge in nav */
.raised-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  background: var(--danger);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 9px;
  margin-left: 4px;
  line-height: 1;
}

/* Mobile navigation */
@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }

  .navbar-menu {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 0;
  }

  .navbar-menu.collapsed {
    display: none;
  }

  .navbar-content {
    flex-wrap: wrap;
    gap: var(--space-xs);
  }

  .navbar-link {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }

  .navbar-dropdown {
    width: 100%;
  }

  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    border-radius: 0;
    min-width: auto;
    padding-left: var(--space-md);
    background: var(--bg-alt);
  }

  .mega-menu {
    min-width: auto;
    max-width: none;
    left: auto;
    transform: none;
  }

  .mega-menu-content {
    grid-template-columns: 1fr;
  }

  .learn-mega-menu .mega-menu-content.learn-grid {
    grid-template-columns: 1fr;
  }
}

/* ══════════════════════════════════════════════════════════════
   LEGACY NAV (.nav-main — for backward compatibility)
   ══════════════════════════════════════════════════════════════ */

.nav-main {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
}

.nav-main ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-md);
}

.nav-main li {
  margin: 0;
}

.nav-main a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-main a:hover,
.nav-main a[aria-current] {
  color: var(--accent);
}

.menu-toggle {
  display: none;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
    color: var(--text);
  }

  .nav-main ul {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .nav-main ul.collapsed {
    display: none;
  }

  .nav-main a {
    padding: var(--space-sm) var(--space-md);
    width: 100%;
    text-align: center;
  }
}

/* ══════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════ */

.footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--border);
  padding: var(--space-lg) 0;
  margin-top: var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.footer-grid-5 {
  grid-template-columns: 1.5fr repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .footer-grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .footer-grid-5 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .footer-grid-5 { grid-template-columns: 1fr; }
}

.footer-section h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.footer-section p {
  color: var(--text-light);
  font-size: var(--text-sm);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: var(--text-light);
  font-size: var(--text-sm);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-links--simple {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.footer-social {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.footer-social a {
  color: var(--muted);
}

.footer-social a:hover {
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--muted);
  margin-bottom: var(--space-xs);
}

.footer-disclaimer {
  font-size: var(--text-xs);
}

/* Legacy footer (bare <footer> element) */
footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--border);
  padding: var(--space-lg) var(--space-md);
  margin-top: var(--space-xl);
  text-align: center;
}

.copyright {
  color: var(--muted);
  font-size: var(--text-sm);
  margin: 0;
}

/* ══════════════════════════════════════════════════════════════
   CONTENT AREAS
   ══════════════════════════════════════════════════════════════ */

main,
#main-content,
.main-content {
  display: block;
  width: 100%;
  min-height: auto;
}

main {
  min-height: 50vh;
}

/* Content blocks */
.content-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: center;
  padding: var(--space-lg) 0;
}

.content-block:has(.content-block__media) {
  grid-template-columns: 1.2fr 1fr;
}

.content-block--reversed:has(.content-block__media) {
  grid-template-columns: 1fr 1.2fr;
}

.content-block--reversed .content-block__media {
  order: -1;
}

@media (max-width: 768px) {
  .content-block:has(.content-block__media),
  .content-block--reversed:has(.content-block__media) {
    grid-template-columns: 1fr;
  }
  .content-block--reversed .content-block__media {
    order: 0;
  }
}

.content-block__media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* Prose (long-form content) */
.prose {
  max-width: 65ch;
  font-size: var(--text-lg);
  line-height: 1.7;
}

.prose > * + * { margin-top: 1.5rem; }
.prose h2 { font-size: var(--text-3xl); margin-top: var(--space-lg); margin-bottom: var(--space-sm); }
.prose h3 { font-size: var(--text-2xl); margin-top: var(--space-lg); margin-bottom: var(--space-sm); }
.prose ul, .prose ol { padding-left: var(--space-md); margin: 1.5em 0; }
.prose li + li { margin-top: var(--space-xs); }
.prose img { margin: var(--space-lg) 0; border-radius: var(--radius); }
.prose a { text-decoration: none; }
.prose a:hover { color: var(--accent-hover); }

/* Page title & meta */
.page-title {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-md);
}

.updated-date {
  font-size: var(--text-sm);
  color: var(--muted);
  margin: var(--space-xs) 0;
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */

@media (max-width: 767px) {
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  .section {
    padding: var(--space-lg) var(--space-md);
  }
}