/* ========================================================================
   HowToHub - Critical Styles (above-the-fold, inline in <head>)
   ======================================================================== */

/* ── CSS Variables ────────────────────────────────────────────────────── */
:root {
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-accent: #F59E0B;
  --color-accent-dark: #D97706;
  --color-text: #1E293B;
  --color-text-light: #475569;
  --color-muted: #64748B;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8FAFC;
  --color-border: #E2E8F0;
  --color-danger: #EF4444;
  --color-success: #22C55E;

  --font-body: 'Hind Siliguri', 'Noto Sans Bengali', 'Arial', sans-serif;
  --font-size-xs: 13px;
  --font-size-sm: 14px;
  --font-size-base: 17px;
  --font-size-lg: 20px;
  --font-size-xl: 26px;
  --font-size-2xl: 32px;
  --line-height: 1.8;
  --max-content: 720px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.1);
  --header-h: 64px;
  --transition: .2s ease;
}

/* ── Dark Mode Variables ──────────────────────────────────────────────── */
[data-theme="dark"] {
  --color-text: #F1F5F9;
  --color-text-light: #CBD5E1;
  --color-muted: #94A3B8;
  --color-bg: #0F172A;
  --color-bg-alt: #1E293B;
  --color-border: #334155;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,.3);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.4);
}

/* ── Reset ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video, canvas { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }
ul, ol { list-style: none; }

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

.skip-link:focus {
  position: fixed; top: 8px; left: 8px; z-index: 99999;
  padding: 12px 20px; background: var(--color-primary); color: #fff;
  border-radius: var(--radius-md); clip: auto; width: auto; height: auto;
  text-decoration: none; font-weight: 600;
}

/* ── Container ────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Reading Progress ─────────────────────────────────────────────────── */
.reading-progress {
  position: fixed; top: 0; left: 0; z-index: 9999;
  width: 0; height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width .1s linear;
}

/* ── Header ───────────────────────────────────────────────────────────── */
.header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: var(--header-h);
}

.header__logo-link {
  display: flex; align-items: center;
  text-decoration: none; color: var(--color-text);
}

.header__logo-text {
  font-size: 22px; font-weight: 700;
  color: var(--color-primary);
}

.header__logo img { max-height: 40px; width: auto; }

/* ── Search Form ──────────────────────────────────────────────────────── */
.search-form__wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.header__search {
  flex: 1;
  max-width: 360px;
}

.search-form__input {
  width: 100%;
  padding: 8px 40px 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.search-form__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

.search-form__input::placeholder {
  color: var(--color-muted);
}

.search-form__btn {
  position: absolute; right: 8px; top: 50%;
  transform: translateY(-50%);
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  background: none; border: none;
  color: var(--color-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.search-form__btn:hover { color: var(--color-primary); }

.search-form__results {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  display: none;
  max-height: 360px;
  overflow-y: auto;
}

.search-form__results.active { display: block; }

/* ── Hero Search Larger ─────────────────────────────────────────── */
.search-form__wrapper--hero .search-form__input {
  padding: 14px 48px 14px 20px;
  font-size: var(--font-size-base);
  border-radius: var(--radius-lg);
}

.search-form__wrapper--hero .search-form__btn {
  right: 12px; width: 32px; height: 32px;
}

/* ── Navigation ───────────────────────────────────────────────────────── */
.nav {
  display: flex; align-items: center;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none;
  cursor: pointer; padding: 8px;
}

.nav__toggle-bar {
  display: block;
  width: 22px; height: 2.5px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  display: block;
  padding: 8px 14px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-light);
  border-radius: var(--radius-md);
  transition: background var(--transition), color var(--transition);
}

.nav__link:hover,
.current-menu-item > .nav__link,
.current_page_item > .nav__link {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

/* ── Dark Toggle ──────────────────────────────────────────────────────── */
.dark-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: none; border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer; color: var(--color-text-light);
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}

.dark-toggle:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.dark-toggle__sun,
.dark-toggle__moon {
  position: absolute;
  transition: opacity var(--transition), transform var(--transition);
}

.dark-toggle__moon { opacity: 0; transform: scale(.5) rotate(-90deg); }
.dark-toggle__sun { opacity: 1; transform: scale(1) rotate(0); }

[data-theme="dark"] .dark-toggle__moon { opacity: 1; transform: scale(1) rotate(0); }
[data-theme="dark"] .dark-toggle__sun { opacity: 0; transform: scale(.5) rotate(90deg); }

.dark-toggle { position: relative; }

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 10px 24px;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: 1.4;
  border: none; border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.btn:active { transform: scale(.97); }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; }

.btn--lg { padding: 14px 32px; font-size: var(--font-size-base); }

/* ── Hero ─────────────────────────────────────────────────────────────── */
.hero {
  padding: 56px 0 40px;
  text-align: center;
}

.hero__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 16px;
  color: var(--color-text);
}

.hero__title br { display: none; }

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero__search {
  max-width: 520px;
  margin: 0 auto;
}

.hero__stats {
  display: flex; justify-content: center;
  gap: 32px; margin-top: 32px;
  flex-wrap: wrap;
}

.hero__stat {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.hero__stat strong {
  display: block;
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  font-weight: 700;
}

/* ── Sections ─────────────────────────────────────────────────────────── */
.section {
  padding: 40px 0;
}

.section__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--color-text);
}

/* ── Categories Grid ──────────────────────────────────────────────────── */
.categories__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}

.category-card {
  display: flex; flex-direction: column; align-items: center;
  gap: 6px;
  padding: 24px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.category-card:hover {
  border-color: var(--cat-color);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.category-card__icon {
  font-size: 36px; line-height: 1;
}

.category-card__name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
}

.category-card__count {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

/* ── Post Card Grid ───────────────────────────────────────────────────── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

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

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

.post-card__link { display: block; text-decoration: none; }

.post-card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.post-card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}

.post-card:hover .post-card__image img {
  transform: scale(1.03);
}

.post-card__image--placeholder {
  display: flex; align-items: center; justify-content: center;
  color: var(--color-muted);
}

.post-card__body {
  padding: 16px;
}

.post-card__cat {
  display: inline-flex;
  padding: 2px 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  background: var(--cat-bg, var(--color-bg-alt));
  color: var(--cat-color, var(--color-text));
  border-radius: 100px;
  margin-bottom: 8px;
}

.post-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__title a {
  color: var(--color-text);
  transition: color var(--transition);
}

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

.post-card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__meta {
  display: flex; gap: 12px; align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

/* ── Single Article ───────────────────────────────────────────────────── */
.single-article {
  max-width: var(--max-content);
  padding-top: 24px;
  padding-bottom: 48px;
}

.single-article__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
}

.single-article__meta {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-bottom: 24px;
}

.single-article__author {
  display: flex; align-items: center; gap: 8px;
  font-weight: 500; color: var(--color-text);
}

.single-article__avatar {
  width: 32px; height: 32px; border-radius: 50%; object-fit: cover;
}

.single-article__featured {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
}

/* ── Content Styles ───────────────────────────────────────────────────── */
.single-article__content {
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
}

.single-article__content > * { margin-bottom: 1.5em; }

.single-article__content h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-top: 1.8em;
  margin-bottom: .6em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.single-article__content h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-top: 1.5em;
  margin-bottom: .5em;
}

.single-article__content p { margin-bottom: 1.2em; }

.single-article__content ul,
.single-article__content ol {
  margin-bottom: 1.2em;
  padding-left: 24px;
}

.single-article__content ul { list-style: disc; }
.single-article__content ol { list-style: decimal; }
.single-article__content li { margin-bottom: .3em; }

.single-article__content a { text-decoration: underline; text-underline-offset: 3px; }

.single-article__content blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
}

.single-article__content pre {
  position: relative;
  background: #1E293B;
  color: #E2E8F0;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  margin-bottom: 1.5em;
  direction: ltr;
  text-align: left;
}

.single-article__content code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  background: var(--color-bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: .9em;
}

.single-article__content pre code {
  background: none;
  padding: 0;
}

/* ── Copy Code Button ─────────────────────────────────────────────────── */
.code-copy-btn {
  position: absolute; top: 8px; right: 8px;
  display: flex; align-items: center; gap: 4px;
  padding: 4px 10px;
  font-size: 12px;
  font-family: var(--font-body);
  background: rgba(255,255,255,.1);
  color: #CBD5E1;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.code-copy-btn:hover {
  background: rgba(255,255,255,.2);
  color: #fff;
}

.code-copy-btn.copied {
  background: var(--color-success);
  color: #fff;
  border-color: var(--color-success);
}

/* ── Table of Contents ────────────────────────────────────────────────── */
.toc {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 32px;
}

.toc__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: 12px;
}

.toc__list {
  list-style: none;
  padding: 0;
}

.toc__list li {
  margin-bottom: 4px;
}

.toc__list a {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-decoration: none;
  padding: 4px 8px;
  display: block;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.toc__list a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}

.toc__list .toc--h3 {
  padding-left: 24px;
  font-size: var(--font-size-xs);
}

.toc__list .toc--active a {
  color: var(--color-primary);
  font-weight: 600;
}

/* ── Breadcrumbs ──────────────────────────────────────────────────────── */
.breadcrumbs {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  margin-bottom: 16px;
}

.breadcrumbs__item a { color: var(--color-muted); }
.breadcrumbs__item a:hover { color: var(--color-primary); }
.breadcrumbs__sep { color: var(--color-border); }
.breadcrumbs__item--current { color: var(--color-text); font-weight: 500; }

/* ── Tags ─────────────────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: var(--font-size-xs);
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition);
}

.tag:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ── Share Buttons ────────────────────────────────────────────────────── */
.share-buttons {
  display: flex; align-items: center; gap: 10px;
  margin: 32px 0;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.share-buttons__label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-left: 0;
}

.share-btn {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  color: #fff;
  transition: transform var(--transition), opacity var(--transition);
}

.share-btn:hover { transform: scale(1.1); opacity: .9; }
.share-btn--facebook { background: #1877F2; }
.share-btn--twitter { background: #1DA1F2; }
.share-btn--whatsapp { background: #25D366; }

/* ── Author Box ───────────────────────────────────────────────────────── */
.author-box {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  margin: 24px 0;
}

.author-box__avatar img {
  width: 64px; height: 64px;
  border-radius: 50%;
  object-fit: cover;
}

.author-box__name {
  font-weight: 600;
  font-size: var(--font-size-base);
}

.author-box__name a { color: var(--color-text); }

.author-box__bio {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-top: 4px;
}

/* ── Archive Header ───────────────────────────────────────────────────── */
.archive-header {
  padding: 24px 0;
}

.archive-header__inner {
  text-align: center;
}

.archive-header__icon {
  font-size: 48px;
  display: block;
  margin-bottom: 8px;
}

.archive-header__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.archive-header__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Pagination ───────────────────────────────────────────────────────── */
.pagination {
  display: flex; justify-content: center; gap: 8px;
  margin: 32px 0;
  padding: 0;
}

.pagination .page-numbers {
  display: flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px;
  padding: 0 12px;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition);
}

.pagination .page-numbers:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.pagination .page-numbers.dots { border: none; background: none; }

/* ── Search Header ────────────────────────────────────────────────────── */
.search-header {
  padding: 32px 0 24px;
}

.search-header__title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.search-header__count {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

/* ── Empty State ──────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 64px 20px;
}

.empty-state__icon { font-size: 64px; margin-bottom: 16px; }
.empty-state__title { font-size: var(--font-size-xl); font-weight: 700; margin-bottom: 12px; }
.empty-state__text { color: var(--color-text-light); margin-bottom: 8px; }
.empty-state__search { max-width: 400px; margin: 24px auto; }

/* ── Error 404 ─────────────────────────────────────────────────────────── */
.error-404 { text-align: center; padding: 64px 20px; }
.error-404__code { font-size: 96px; font-weight: 800; color: var(--color-primary); line-height: 1; }
.error-404__title { font-size: var(--font-size-xl); font-weight: 700; margin: 16px 0; }
.error-404__text { color: var(--color-text-light); max-width: 500px; margin: 0 auto 24px; }
.error-404__search { max-width: 400px; margin: 0 auto 24px; }
.error-404__actions { margin-bottom: 40px; }
.error-404__popular h2 { font-size: var(--font-size-lg); font-weight: 600; margin-bottom: 16px; }

.posts-grid--mini .post-card { border: none; background: none; box-shadow: none; }
.posts-grid--mini .post-card:hover { transform: none; }

/* ── CTA Section ──────────────────────────────────────────────────────── */
.cta__inner {
  text-align: center;
  padding: 48px 20px;
  background: linear-gradient(135deg, var(--color-primary), #1D4ED8);
  border-radius: var(--radius-lg);
  color: #fff;
}

.cta__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 12px;
}

.cta__text {
  font-size: var(--font-size-base);
  margin-bottom: 24px;
  opacity: .9;
}

.cta__inner .btn--primary {
  background: var(--color-accent);
  color: #1E293B;
}

.cta__inner .btn--primary:hover {
  background: var(--color-accent-dark);
}

/* ── Footer ───────────────────────────────────────────────────────────── */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 40px 0 24px;
  margin-top: 48px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer__logo { font-size: 20px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; }
.footer__logo a { color: var(--color-primary); text-decoration: none; }
.footer__tagline { font-size: var(--font-size-sm); color: var(--color-text-light); }

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.footer__menu { list-style: none; padding: 0; }
.footer__menu li { margin-bottom: 6px; }
.footer__menu a {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-decoration: none;
  transition: color var(--transition);
}
.footer__menu a:hover { color: var(--color-primary); }

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  text-align: center;
}

.footer__copyright {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

.footer__copyright a { color: var(--color-muted); }
.footer__copyright a:hover { color: var(--color-primary); }

/* ── Back to Top ──────────────────────────────────────────────────────── */
.back-to-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 900;
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: var(--color-primary);
  color: #fff;
  border: none; border-radius: 50%;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-3px); background: var(--color-primary-dark); }

/* ── Related Posts ────────────────────────────────────────────────────── */
.related-posts {
  margin: 40px 0;
}

.related-posts__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 20px;
}

/* ── Single Article Tax ───────────────────────────────────────────────── */
.single-article__tax {
  display: flex; flex-wrap: wrap; gap: 16px;
  margin: 24px 0;
  font-size: var(--font-size-sm);
}

.single-article__tax-label {
  font-weight: 600;
  color: var(--color-text);
}

.single-article__cats,
.single-article__tags {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
}

.single-article__updated {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

/* ── Text utilities ───────────────────────────────────────────────────── */
.text-muted { color: var(--color-muted); }

/* ── Mobile (≤ 768) ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .header__search { display: none; }
  .header__search.is-visible-mobile { display: block; position: absolute; top: var(--header-h); left: 0; right: 0; padding: 12px 20px; background: var(--color-bg); border-bottom: 1px solid var(--color-border); z-index: 999; max-width: 100%; }

  .nav__toggle { display: flex; }

  .nav__menu {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    flex-direction: column;
    background: var(--color-bg);
    padding: 16px;
    gap: 0;
    transform: translateX(-100%);
    transition: transform .25s ease;
    overflow-y: auto;
    z-index: 999;
  }

  .nav__menu.nav__menu--open { transform: translateX(0); }

  .nav__link {
    padding: 14px 16px;
    font-size: var(--font-size-base);
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }

  .categories__grid { grid-template-columns: repeat(2, 1fr); }

  .posts-grid { grid-template-columns: 1fr; }

  .footer__grid { grid-template-columns: 1fr; gap: 24px; }

  .hero__stats { gap: 16px; }
  .hero__title br { display: block; }

  .toc { padding: 16px; }
}

/* ── Tablet (769-1024) ────────────────────────────────────────────────── */
@media (min-width: 769px) and (max-width: 1024px) {
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Desktop (≥ 1025) ─────────────────────────────────────────────────── */
@media (min-width: 1025px) {
  .nav__menu { display: flex; }
}

/* ===== PROFESSIONAL REDESIGN V2.0 ===== */
/* Hero Slider */
.hero-slider{position:relative;margin-top:var(--header-h);overflow:hidden;background:var(--dark);height:480px}
.hero-slider__track{display:flex;height:100%;transition:transform .5s ease}
.hero-slider__slide{min-width:100%;height:100%;position:relative;flex-shrink:0}
.hero-slider__image{width:100%;height:100%;background-size:cover;background-position:center;position:relative}
.hero-slider__overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,23,42,.85),rgba(15,23,42,.4))}
.hero-slider__content{position:absolute;bottom:60px;left:5%;max-width:600px;color:#fff;z-index:2}
.hero-slider__cat{display:inline-block;padding:4px 14px;background:var(--primary);border-radius:20px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px}
.hero-slider__title{font-size:32px;font-weight:700;line-height:1.2;margin-bottom:10px}
.hero-slider__excerpt{font-size:16px;opacity:.9;margin-bottom:8px;line-height:1.5}
.hero-slider__meta{font-size:13px;opacity:.7}
.hero-slider__arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;background:rgba(255,255,255,.15);border:none;cursor:pointer;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;backdrop-filter:blur(4px);transition:background .2s}
.hero-slider__arrow:hover{background:rgba(255,255,255,.3)}
.hero-slider__arrow--prev{left:20px}
.hero-slider__arrow--next{right:20px}
.hero-slider__dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.hero-slider__dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);border:none;cursor:pointer;transition:all .2s}
.hero-slider__dot.active{background:#fff;width:28px;border-radius:5px}

/* Category Grid */
.category-section{padding:60px 0}
.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.category-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:24px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center;transition:all .25s;color:var(--text);cursor:pointer}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--cat-color);color:var(--text)}
.category-card__icon{font-size:36px;line-height:1}
.category-card__name{font-size:14px;font-weight:600}
.category-card__count{font-size:12px;color:var(--text-light)}

/* Post Grid Cards */
.post-grid{display:grid;gap:24px}
.post-grid--popular{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.post-grid--latest{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.post-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.post-card__link{display:block;color:var(--text)}
.post-card__link:hover{color:var(--text)}
.post-card__thumb{position:relative;padding-top:56%;overflow:hidden}
.post-card__thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .3s}
.post-card:hover .post-card__thumb img{transform:scale(1.05)}
.post-card__body{padding:20px}
.post-card__title{font-size:18px;font-weight:600;line-height:1.3;margin-bottom:8px}
.post-card__excerpt{font-size:14px;color:var(--text-light);line-height:1.5;margin-bottom:12px}
.post-card__meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-light)}
.section__empty{text-align:center;padding:60px 20px;color:var(--text-light);font-size:18px}

/* Pagination */
.pagination{display:flex;justify-content:center;gap:8px;padding:40px 0}
.pagination a,.pagination span{padding:10px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-weight:500;transition:all .2s}
.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* Responsive */
@media(max-width:768px){
  .hero-slider{height:360px}
  .hero-slider__title{font-size:24px}
  .hero-slider__content{bottom:40px;left:20px;right:20px}
  .category-grid{grid-template-columns:repeat(3,1fr)}
  .post-grid--latest{grid-template-columns:1fr}
}
@media(max-width:480px){
  .hero-slider{height:300px}
  .hero-slider__title{font-size:20px}
  .category-grid{grid-template-columns:repeat(2,1fr)}
}
