/*
Theme Name: BizFin
Theme URI: https://bizfin.net
Author: BizFin Media
Author URI: https://bizfin.net
Description: Минималистичная SEO-медиа тема для BizFin - бизнес, финансы, маркетинг, IT
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bizfin
Tags: blog, news, minimal, seo, business
*/

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

:root {
  --color-accent: #1a7fd4;
  --color-accent-dark: #155fa0;
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-text-light: #9ca3af;
  --color-border: #e5e7eb;
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-dark: #111827;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --max-width: 1200px;
  --content-width: 740px;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-dark); }

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

/* =============================================
   LAYOUT
   ============================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

.full-width { grid-column: 1 / -1; }

/* =============================================
   HEADER
   ============================================= */
#site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 32px;
}

.site-logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.site-logo span { color: var(--color-accent); }
.site-logo:hover { color: var(--color-text); }

/* Navigation */
#primary-nav ul {
  display: flex;
  list-style: none;
  gap: 4px;
}

#primary-nav a {
  display: block;
  padding: 6px 12px;
  font-size: 14px;
  color: var(--color-text-muted);
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}

#primary-nav a:hover,
#primary-nav .current-menu-item > a {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn-advertise {
  display: inline-block;
  padding: 8px 16px;
  background: var(--color-accent);
  color: #fff !important;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  transition: background 0.15s;
}

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

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
  color: var(--color-text);
}

/* =============================================
   HERO / FEATURED
   ============================================= */
.hero-section {
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 12px;
  max-width: 720px;
}

.hero-title a { color: inherit; }
.hero-title a:hover { color: var(--color-accent); }

.hero-excerpt {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 620px;
  margin-bottom: 16px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-light);
  flex-wrap: wrap;
}

.post-meta a { color: var(--color-text-light); }
.post-meta a:hover { color: var(--color-accent); }
.post-meta .sep { opacity: 0.4; }

/* =============================================
   SECTION HEADINGS
   ============================================= */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-link {
  font-size: 13px;
  color: var(--color-accent);
}

.section-link:hover { text-decoration: underline; }

/* =============================================
   ARTICLE CARDS
   ============================================= */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

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

.post-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
  transition: box-shadow 0.2s, transform 0.2s;
}

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

.post-card-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.post-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

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

.post-card-body { padding: 16px; }

.post-card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-title a { color: inherit; }
.post-card-title a:hover { color: var(--color-accent); }

.post-card-meta {
  font-size: 12px;
  color: var(--color-text-light);
}

/* Category badge */
.cat-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  background: #e8f3fc;
  color: #1558a0;
}

.cat-badge.cat-finance     { background: #e1f5ee; color: #0a6b4f; }
.cat-badge.cat-marketing   { background: #fdf3e7; color: #8a4e00; }
.cat-badge.cat-technology  { background: #f0eeff; color: #4a3ab5; }
.cat-badge.cat-reviews     { background: #fef0f0; color: #a02020; }
.cat-badge.cat-guides      { background: #f0fef4; color: #1a6b35; }

/* =============================================
   POPULAR / LIST STYLE POSTS
   ============================================= */
.posts-list { display: flex; flex-direction: column; gap: 0; }

.post-list-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
}

.post-list-item:last-child { border-bottom: none; }

.post-list-thumb {
  width: 80px;
  height: 56px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--color-bg-secondary);
  flex-shrink: 0;
}

.post-list-thumb img { width: 100%; height: 100%; object-fit: cover; }

.post-list-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 4px;
}

.post-list-title a { color: inherit; }
.post-list-title a:hover { color: var(--color-accent); }

/* =============================================
   RECOMMENDED / SIDEBAR WIDGET
   ============================================= */
.recommended-block {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 32px;
}

.recommended-block h3 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.recommended-list { list-style: none; }

.recommended-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.recommended-list li:last-child { border-bottom: none; }

.recommended-list a {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  display: block;
  margin-bottom: 2px;
}

.recommended-list a:hover { color: var(--color-accent); }

.recommended-list small {
  font-size: 11px;
  color: var(--color-text-light);
}

/* =============================================
   CATEGORIES PILLS
   ============================================= */
.categories-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.category-pill {
  display: inline-block;
  padding: 7px 16px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--color-text-muted);
  transition: all 0.15s;
}

.category-pill:hover,
.category-pill.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

/* =============================================
   SIDEBAR
   ============================================= */
.sidebar { position: sticky; top: 80px; }

.widget {
  margin-bottom: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.widget-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text);
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.widget-body { padding: 16px; }

/* About widget */
.widget-about {
  background: var(--color-accent);
  color: #fff;
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.widget-about .logo {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.widget-about p {
  font-size: 13px;
  opacity: 0.9;
  line-height: 1.6;
  margin-bottom: 14px;
}

.widget-about a {
  display: inline-block;
  padding: 7px 14px;
  background: rgba(255,255,255,0.2);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 5px;
  border: 1px solid rgba(255,255,255,0.3);
}

.widget-about a:hover { background: rgba(255,255,255,0.3); }

/* =============================================
   SINGLE POST / ARTICLE
   ============================================= */
.single-post { max-width: var(--content-width); }

.post-header { margin-bottom: 32px; }

.post-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 16px;
}

.post-lead {
  font-size: 18px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.post-featured-image {
  margin-bottom: 32px;
  border-radius: var(--radius);
  overflow: hidden;
}

.post-content {
  font-size: 17px;
  line-height: 1.75;
  color: #2d2d2d;
}

.post-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  margin: 40px 0 16px;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
}

.post-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin: 28px 0 12px;
}

.post-content p { margin-bottom: 20px; }

.post-content ul,
.post-content ol {
  margin: 16px 0 20px 24px;
}

.post-content li { margin-bottom: 8px; }

.post-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  margin: 28px 0;
  padding: 16px 24px;
  background: var(--color-bg-secondary);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 18px;
  color: var(--color-text-muted);
  font-style: italic;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}

.post-content th {
  background: var(--color-bg-secondary);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
}

.post-content td {
  padding: 10px 16px;
  border: 1px solid var(--color-border);
}

.post-content tr:nth-child(even) td { background: var(--color-bg-secondary); }

/* Info box */
.info-box {
  background: #e8f3fc;
  border: 1px solid #b5d4f4;
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 28px 0;
}

.info-box strong {
  display: block;
  font-size: 14px;
  color: #1558a0;
  margin-bottom: 6px;
}

.info-box p { color: #1a3a5c; margin: 0; font-size: 15px; }

/* =============================================
   TOC (Table of Contents)
   ============================================= */
.toc-box {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0 32px;
}

.toc-box h3 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.toc-box ol {
  margin-left: 20px;
}

.toc-box li {
  font-size: 14px;
  margin-bottom: 6px;
}

.toc-box a { color: var(--color-accent); }

/* =============================================
   TAGS
   ============================================= */
.post-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.tag-link {
  display: inline-block;
  padding: 5px 12px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 12px;
  color: var(--color-text-muted);
}

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

/* =============================================
   AUTHOR BOX
   ============================================= */
.author-box {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-top: 40px;
}

.author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  font-weight: 700;
}

.author-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.author-bio {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* =============================================
   RELATED POSTS
   ============================================= */
.related-posts { margin-top: 48px; }

.related-posts h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

/* =============================================
   PAGINATION
   ============================================= */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 40px 0;
}

.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--color-text-muted);
  transition: all 0.15s;
}

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

/* =============================================
   ADVERTISE BANNER
   ============================================= */
.advertise-banner {
  background: linear-gradient(135deg, var(--color-accent) 0%, #0f5ca0 100%);
  color: #fff;
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  margin: 48px 0;
}

.advertise-banner h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
}

.advertise-banner p {
  font-size: 15px;
  opacity: 0.9;
  margin-bottom: 20px;
}

.advertise-banner a {
  display: inline-block;
  padding: 12px 28px;
  background: #fff;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 700;
  border-radius: 6px;
}

/* =============================================
   FOOTER
   ============================================= */
#site-footer {
  margin-top: 64px;
  background: var(--color-bg-dark);
  color: #9ca3af;
}

.footer-top {
  padding: 48px 0 32px;
  display: grid;
  grid-template-columns: 240px 1fr 1fr 1fr;
  gap: 40px;
  border-bottom: 1px solid #1f2937;
}

.footer-brand .logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand .logo span { color: var(--color-accent); }

.footer-brand p {
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #e5e7eb;
  margin-bottom: 14px;
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 8px; }

.footer-col a {
  font-size: 13px;
  color: #9ca3af;
  transition: color 0.15s;
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
}

.footer-bottom a { color: #9ca3af; margin-left: 16px; }
.footer-bottom a:hover { color: #fff; }

/* =============================================
   CATEGORY / ARCHIVE PAGE
   ============================================= */
.archive-header {
  padding: 40px 0 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.archive-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

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

.archive-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 600px;
}

/* =============================================
   SEARCH
   ============================================= */
.search-form {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.search-form input[type="search"] {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s;
}

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

.search-form button {
  padding: 10px 20px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

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

/* =============================================
   STATIC PAGES (About, Contact, Privacy)
   ============================================= */
.page-header {
  padding: 48px 0 32px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.page-header h1 {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 12px;
}

.page-header p {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}

.page-content {
  max-width: var(--content-width);
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.75;
}

/* Contact form */
.contact-form { max-width: 560px; }

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus { border-color: var(--color-accent); }

.form-group textarea { min-height: 140px; resize: vertical; }

.btn-submit {
  display: inline-block;
  padding: 12px 28px;
  background: var(--color-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.15s;
}

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

/* =============================================
   REVIEW / RATING
   ============================================= */
.review-score-box {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin: 24px 0;
}

.review-score-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.review-score-stars { font-size: 24px; color: #f59e0b; letter-spacing: 2px; }

.review-score-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 4px;
}

/* Pros/Cons */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.pros, .cons {
  padding: 20px;
  border-radius: var(--radius);
}

.pros { background: #f0fef4; border: 1px solid #a7f3c5; }
.cons { background: #fff5f5; border: 1px solid #fca5a5; }

.pros h4 { color: #15803d; font-size: 14px; margin-bottom: 12px; }
.cons h4 { color: #dc2626; font-size: 14px; margin-bottom: 12px; }

.pros ul, .cons ul { list-style: none; }

.pros li, .cons li {
  font-size: 14px;
  padding: 4px 0;
  padding-left: 20px;
  position: relative;
  color: var(--color-text);
}

.pros li::before { content: '✓'; position: absolute; left: 0; color: #15803d; font-weight: 700; }
.cons li::before { content: '✗'; position: absolute; left: 0; color: #dc2626; font-weight: 700; }

/* =============================================
   BREADCRUMBS
   ============================================= */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-light);
  padding: 16px 0;
  flex-wrap: wrap;
}

.breadcrumbs a { color: var(--color-text-light); }
.breadcrumbs a:hover { color: var(--color-accent); }
.breadcrumbs .sep { opacity: 0.5; }
.breadcrumbs .current { color: var(--color-text-muted); }

/* =============================================
   UTILITIES
   ============================================= */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.hidden { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* Reading time label */
.reading-time { font-size: 12px; color: var(--color-text-light); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .site-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --max-width: 100%; }

  .header-inner { height: 56px; }
  .site-logo { font-size: 18px; }

  #primary-nav { display: none; }
  #primary-nav.open { display: block; position: absolute; top: 56px; left: 0; right: 0; background: var(--color-bg); border-bottom: 1px solid var(--color-border); padding: 16px 24px; }
  #primary-nav.open ul { flex-direction: column; gap: 4px; }
  .menu-toggle { display: block; }
  .btn-advertise { display: none; }

  .hero-title { font-size: 24px; }
  .hero-excerpt { font-size: 15px; }

  .posts-grid { grid-template-columns: 1fr; }
  .posts-grid-2col { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr; gap: 24px; padding: 32px 0 24px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

  .post-title { font-size: 26px; }
  .pros-cons { grid-template-columns: 1fr; }

  .advertise-banner { padding: 28px 20px; }
  .advertise-banner h2 { font-size: 20px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 20px; }
  .post-title { font-size: 22px; }
  .page-header h1 { font-size: 28px; }
}