/* =============================================================
   22 SEO — Main Theme Styles
   Mobile-first, zero CLS, Bootstrap 5 base
   ============================================================= */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--sseo-font-base);
  font-size: var(--sseo-font-size);
  line-height: var(--sseo-line-height);
  color: var(--sseo-text);
  background-color: var(--sseo-bg);
  margin: 0;
  padding: 0;
  transition: background-color var(--sseo-transition), color var(--sseo-transition);
  overflow-x: hidden;
}

img, video, picture {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--sseo-accent);
  text-decoration: none;
  transition: color var(--sseo-transition), opacity var(--sseo-transition);
}
a:hover { color: var(--sseo-primary); }
a:focus-visible {
  outline: 2px solid var(--sseo-accent);
  outline-offset: 2px;
  border-radius: var(--sseo-radius-sm);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--sseo-text);
  line-height: 1.3;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: var(--sseo-space-md);
}

p { margin-top: 0; margin-bottom: var(--sseo-space-md); }

/* ---------------------------------------------------------------
   Container & layout
--------------------------------------------------------------- */
.sseo-container,
.container,
.container-fluid {
  width: 100%;
  max-width: var(--sseo-max-width);
  margin-inline: auto;
  padding-inline: var(--sseo-gutter);
}

.container-fluid {
  max-width: 100%;
}

/* ---------------------------------------------------------------
   Site wrapper
--------------------------------------------------------------- */
.sseo-site {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.sseo-main {
  flex: 1;
  padding-block: var(--sseo-space-xl);
}

/* ---------------------------------------------------------------
   Header
--------------------------------------------------------------- */
.sseo-header {
  position: sticky;
  top: 0;
  z-index: var(--sseo-z-sticky);
  background: var(--sseo-surface);
  border-bottom: 1px solid var(--sseo-border);
  box-shadow: var(--sseo-shadow-sm);
  transition: background var(--sseo-transition), border-color var(--sseo-transition);
}

.sseo-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sseo-space-lg);
  height: 64px;
  max-width: var(--sseo-max-width);
  margin-inline: auto;
  padding-inline: var(--sseo-gutter);
}

/* ---------------------------------------------------------------
   Logo
--------------------------------------------------------------- */
.sseo-logo-wrap {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.sseo-logo {
  height: 40px;
  width: auto;
}

/* Dark/light logo visibility */
[data-theme="dark"]  .sseo-logo--light,
[data-theme="light"] .sseo-logo--dark  { display: none; }
[data-theme="dark"]  .sseo-logo--dark,
[data-theme="light"] .sseo-logo--light { display: block; }

/* Default (no theme set) — show dark logo */
:root:not([data-theme]) .sseo-logo--light { display: none; }
:root:not([data-theme]) .sseo-logo--dark  { display: block; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .sseo-logo--dark  { display: none; }
  :root:not([data-theme]) .sseo-logo--light { display: block; }
}

/* ---------------------------------------------------------------
   Navigation
--------------------------------------------------------------- */
.sseo-nav {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--sseo-space-xs);
}

@media (min-width: 992px) {
  .sseo-nav { display: flex; align-items: center; }
}

.sseo-nav__item { position: relative; }

.sseo-nav__link {
  display: block;
  padding: var(--sseo-space-sm) var(--sseo-space-md);
  color: var(--sseo-text);
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: var(--sseo-radius);
  transition: color var(--sseo-transition), background var(--sseo-transition);
  white-space: nowrap;
}

.sseo-nav__link:hover,
.sseo-nav__link:focus-visible,
.sseo-nav__item.current-menu-item > .sseo-nav__link {
  color: var(--sseo-primary);
  background: var(--sseo-surface-hover);
}

/* Dropdown */
.sseo-nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: var(--sseo-surface);
  border: 1px solid var(--sseo-border);
  border-radius: var(--sseo-radius);
  box-shadow: var(--sseo-shadow);
  padding: var(--sseo-space-sm);
  list-style: none;
  margin: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity var(--sseo-transition), transform var(--sseo-transition);
  z-index: var(--sseo-z-dropdown);
}

.sseo-nav__item:hover > .sseo-nav__dropdown,
.sseo-nav__item:focus-within > .sseo-nav__dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ---------------------------------------------------------------
   Header actions (toggle + mobile menu btn)
--------------------------------------------------------------- */
.sseo-header__actions {
  display: flex;
  align-items: center;
  gap: var(--sseo-space-sm);
}

/* ---------------------------------------------------------------
   Dark/Light Mode Toggle
--------------------------------------------------------------- */
.sseo-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--sseo-space-xs);
  padding: var(--sseo-space-sm) var(--sseo-space-md);
  background: var(--sseo-surface-hover);
  border: 1px solid var(--sseo-border);
  border-radius: var(--sseo-radius-full);
  color: var(--sseo-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--sseo-transition), border-color var(--sseo-transition);
  line-height: 1;
}

.sseo-theme-toggle:hover {
  background: var(--sseo-primary);
  color: #fff;
  border-color: var(--sseo-primary);
}

.sseo-theme-toggle__icon { font-size: 1rem; line-height: 1; }

/* ---------------------------------------------------------------
   Mobile hamburger
--------------------------------------------------------------- */
.sseo-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.sseo-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--sseo-text);
  border-radius: 2px;
  transition: transform var(--sseo-transition), opacity var(--sseo-transition);
}

.sseo-menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.sseo-menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.sseo-menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (min-width: 992px) { .sseo-menu-toggle { display: none; } }

/* ---------------------------------------------------------------
   Mobile nav drawer
--------------------------------------------------------------- */
.sseo-mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--sseo-bg);
  z-index: calc(var(--sseo-z-sticky) - 1);
  padding: 80px var(--sseo-gutter) var(--sseo-gutter);
  transform: translateX(100%);
  transition: transform var(--sseo-transition-slow);
  overflow-y: auto;
}

.sseo-mobile-nav.is-open {
  transform: translateX(0);
}

.sseo-mobile-nav .sseo-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sseo-mobile-nav .sseo-nav__link {
  font-size: 1.125rem;
  padding: var(--sseo-space-md);
  border-radius: 0;
  border-bottom: 1px solid var(--sseo-border);
}

/* ---------------------------------------------------------------
   Footer
--------------------------------------------------------------- */
.sseo-footer {
  background: var(--sseo-surface);
  border-top: 1px solid var(--sseo-border);
  padding-block: var(--sseo-space-2xl);
  margin-top: auto;
}

.sseo-footer__inner {
  max-width: var(--sseo-max-width);
  margin-inline: auto;
  padding-inline: var(--sseo-gutter);
}

.sseo-footer__bottom {
  padding-top: var(--sseo-space-lg);
  border-top: 1px solid var(--sseo-border);
  color: var(--sseo-text-muted);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sseo-space-sm);
}

/* ---------------------------------------------------------------
   Cards
--------------------------------------------------------------- */
.sseo-card {
  background: var(--sseo-surface);
  border: 1px solid var(--sseo-border);
  border-radius: var(--sseo-radius-lg);
  overflow: hidden;
  transition: box-shadow var(--sseo-transition), transform var(--sseo-transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.sseo-card:hover {
  box-shadow: var(--sseo-shadow);
  transform: translateY(-2px);
}

.sseo-card__img-wrap {
  display: block;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.sseo-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--sseo-transition-slow);
}

.sseo-card:hover .sseo-card__img { transform: scale(1.04); }

.sseo-card__body {
  padding: var(--sseo-space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.sseo-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sseo-space-sm);
  margin-bottom: var(--sseo-space-sm);
  font-size: 0.8125rem;
  color: var(--sseo-text-muted);
}

.sseo-card__cat {
  display: inline-block;
  padding: 2px 10px;
  background: var(--sseo-primary);
  color: #fff;
  border-radius: var(--sseo-radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sseo-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--sseo-space-sm);
  line-height: 1.35;
}

.sseo-card__title a { color: var(--sseo-text); }
.sseo-card__title a:hover { color: var(--sseo-primary); }

.sseo-card__excerpt {
  font-size: 0.875rem;
  color: var(--sseo-text-muted);
  line-height: 1.55;
  margin-bottom: 0;
  flex: 1;
}

/* ---------------------------------------------------------------
   Badges & labels
--------------------------------------------------------------- */
.sseo-badge {
  display: inline-block;
  padding: 2px 10px;
  background: var(--sseo-surface-hover);
  border: 1px solid var(--sseo-border);
  border-radius: var(--sseo-radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--sseo-text-muted);
}

/* ---------------------------------------------------------------
   Buttons
--------------------------------------------------------------- */
.sseo-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sseo-space-sm);
  padding: 0.625rem 1.25rem;
  border-radius: var(--sseo-radius);
  font-weight: 600;
  font-size: 0.9375rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--sseo-transition), color var(--sseo-transition), border-color var(--sseo-transition), box-shadow var(--sseo-transition);
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}

.sseo-btn--primary {
  background: var(--sseo-primary);
  color: #fff;
}
.sseo-btn--primary:hover {
  background: var(--sseo-accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(59,111,245,.4);
}

.sseo-btn--cta {
  background: var(--sseo-cta);
  color: #1a2332;
  font-weight: 700;
}
.sseo-btn--cta:hover {
  background: #e5a020;
  color: #1a2332;
  box-shadow: 0 4px 20px rgba(244,184,64,.4);
}

.sseo-btn--outline {
  background: transparent;
  color: var(--sseo-primary);
  border-color: var(--sseo-primary);
}
.sseo-btn--outline:hover {
  background: var(--sseo-primary);
  color: #fff;
}

/* ---------------------------------------------------------------
   Breadcrumb
--------------------------------------------------------------- */
.sseo-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0 0 var(--sseo-space-lg);
  padding: 0;
  font-size: 0.875rem;
  color: var(--sseo-text-muted);
}

.sseo-breadcrumb li + li::before {
  content: '/';
  margin-inline: var(--sseo-space-sm);
  opacity: 0.5;
}

.sseo-breadcrumb a { color: var(--sseo-text-muted); }
.sseo-breadcrumb a:hover { color: var(--sseo-accent); }
.sseo-breadcrumb li:last-child { color: var(--sseo-text); }

/* ---------------------------------------------------------------
   Pagination
--------------------------------------------------------------- */
.sseo-pagination {
  display: flex;
  justify-content: center;
  gap: var(--sseo-space-sm);
  margin-top: var(--sseo-space-2xl);
  flex-wrap: wrap;
}

.sseo-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding-inline: var(--sseo-space-sm);
  border-radius: var(--sseo-radius);
  background: var(--sseo-surface);
  border: 1px solid var(--sseo-border);
  color: var(--sseo-text);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: background var(--sseo-transition), color var(--sseo-transition);
}

.sseo-pagination .page-numbers:hover,
.sseo-pagination .page-numbers.current {
  background: var(--sseo-primary);
  color: #fff;
  border-color: var(--sseo-primary);
}

/* ---------------------------------------------------------------
   Picture with CLS prevention
--------------------------------------------------------------- */
.sseo-picture {
  display: block;
  line-height: 0;
}

.sseo-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

/* ---------------------------------------------------------------
   Dark mode images switch
--------------------------------------------------------------- */
[data-theme="dark"]  img.sseo-img--light { display: none; }
[data-theme="dark"]  img.sseo-img--dark  { display: block; }
[data-theme="light"] img.sseo-img--dark  { display: none; }
[data-theme="light"] img.sseo-img--light { display: block; }

/* ---------------------------------------------------------------
   Skip to content (accessibility)
--------------------------------------------------------------- */
.sseo-skip-link {
  position: absolute;
  top: -999px;
  left: var(--sseo-gutter);
  background: var(--sseo-primary);
  color: #fff;
  padding: var(--sseo-space-sm) var(--sseo-space-md);
  border-radius: 0 0 var(--sseo-radius) var(--sseo-radius);
  font-weight: 700;
  z-index: 9999;
  transition: top 0s;
}

.sseo-skip-link:focus { top: 0; }

/* ---------------------------------------------------------------
   Archive header
--------------------------------------------------------------- */
.sseo-archive-header {
  padding-block: var(--sseo-space-xl);
  border-bottom: 1px solid var(--sseo-border);
}

.sseo-archive-header__title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 800;
  margin-bottom: var(--sseo-space-sm);
  color: var(--sseo-text);
}

.sseo-archive-header__desc {
  font-size: 1rem;
  color: var(--sseo-text-muted);
  max-width: 700px;
}

/* Block paragraph sizes */
.sseo-block-paragraph--small { font-size: 0.875rem; }
.sseo-block-paragraph--large { font-size: 1.125rem; }

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