/* ==========================================================================
   DigitalTechWriter.com - Modern Technical Blog Design System
   Optimized for Developer Experience, Core Web Vitals & AdSense Monetization
   ========================================================================== */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Light Theme Variables */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --border-subtle: #edf2f7;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-subtle: #eff6ff;
  --accent: #0ea5e9;
  --accent-light: #e0f2fe;

  --code-bg: #0f172a;
  --code-header-bg: #1e293b;
  --code-text: #f8fafc;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --container-max: 1240px;
}

[data-theme="dark"] {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --bg-card: #151d30;
  --border-color: #26334d;
  --border-subtle: #1c263b;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0b0f19;

  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-subtle: rgba(59, 130, 246, 0.15);
  --accent: #38bdf8;
  --accent-light: rgba(56, 189, 248, 0.15);

  --code-bg: #080c14;
  --code-header-bg: #121929;
  --code-text: #f1f5f9;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  font-size: 16px;
  transition: background-color 0.25s ease, color 0.25s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

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

.header-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.28rem;
  color: var(--text-primary);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
}

.brand-text span {
  color: var(--primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: var(--primary-subtle);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.search-btn, .theme-toggle-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.search-btn:hover, .theme-toggle-btn:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

/* ==========================================================================
   Ad Spaces & Banner Containers
   ========================================================================== */

.ad-placeholder-box {
  background: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1.75rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}

.ad-placeholder-box:hover {
  border-color: var(--primary);
}

.ad-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.ad-tag {
  background: var(--bg-tertiary);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
}

.ad-placeholder-body {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.75rem 0;
}

.ad-icon {
  color: var(--accent);
}

.ad-placeholder-text strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.ad-placeholder-text p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

.ad-container {
  margin: 2rem 0;
  text-align: center;
  overflow: hidden;
}

.ad-label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.header-ad-banner {
  max-width: var(--container-max);
  margin: 1rem auto 0;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border-color);
  padding: 3.5rem 1.5rem;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: var(--primary-subtle);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.18rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-search-form {
  max-width: 580px;
  margin: 0 auto 1.5rem;
  display: flex;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 50px;
  padding: 0.35rem;
  box-shadow: var(--shadow-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.hero-search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.hero-search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  color: var(--text-primary);
  outline: none;
}

.hero-search-submit {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s;
}

.hero-search-submit:hover {
  background: var(--primary-hover);
}

.hero-topics {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.topic-chip {
  padding: 0.25rem 0.75rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: 50px;
  font-weight: 500;
  transition: all 0.2s;
}

.topic-chip:hover {
  background: var(--primary);
  color: #fff;
}

/* ==========================================================================
   Layout Containers & Grid
   ========================================================================== */

.main-content {
  flex: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  width: 100%;
}

.page-layout-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2.5rem;
  align-items: start;
}

.full-width-layout {
  max-width: 860px;
  margin: 0 auto;
}

/* ==========================================================================
   Article Cards & Grids
   ========================================================================== */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border-color);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: var(--shadow-sm);
  position: relative;
}

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

.article-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.card-category-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: var(--primary-subtle);
  color: var(--primary);
}

.card-read-time {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.card-title a {
  color: inherit;
}

.card-title a:hover {
  color: var(--primary);
}

.card-summary {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.card-author-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.avatar-mini {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
}

/* ==========================================================================
   Article Detail View
   ========================================================================== */

.article-view-container {
  max-width: 820px;
}

.article-breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.article-header {
  margin-bottom: 2rem;
}

.article-meta-badges {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.article-view-title {
  font-size: 2.65rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.article-author-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 1rem;
}

.author-detail-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-avatar-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
}

.author-meta-name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.98rem;
}

.author-meta-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.share-buttons-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.share-btn {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all 0.2s;
}

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

/* Table of Contents */
.toc-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
}

.toc-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-list {
  list-style: none;
  padding-left: 0;
}

.toc-list li {
  margin-bottom: 0.4rem;
  line-height: 1.4;
}

.toc-list li.toc-level-3 {
  padding-left: 1.25rem;
  font-size: 0.92rem;
}

.toc-list a {
  color: var(--text-secondary);
}

.toc-list a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* Article Markdown Typography */
.article-body {
  font-size: 1.12rem;
  line-height: 1.78;
  color: var(--text-primary);
  margin-bottom: 2.5rem;
}

.article-body h2 {
  font-size: 1.85rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  scroll-margin-top: 80px;
}

.article-body h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  scroll-margin-top: 80px;
}

.article-body p {
  margin-bottom: 1.4rem;
}

.article-body ul, .article-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.75rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg-secondary);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* Callouts / Alerts */
.callout {
  padding: 1.15rem 1.4rem;
  margin: 1.75rem 0;
  border-radius: var(--radius-md);
  border-left: 4px solid;
}

.callout-title {
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.callout-note {
  background: rgba(37, 99, 235, 0.08);
  border-color: #2563eb;
  color: var(--text-primary);
}
.callout-note .callout-title { color: #2563eb; }

.callout-tip {
  background: rgba(16, 185, 129, 0.08);
  border-color: #10b981;
  color: var(--text-primary);
}
.callout-tip .callout-title { color: #10b981; }

.callout-important {
  background: rgba(139, 92, 246, 0.08);
  border-color: #8b5cf6;
  color: var(--text-primary);
}
.callout-important .callout-title { color: #8b5cf6; }

.callout-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: #f59e0b;
  color: var(--text-primary);
}
.callout-warning .callout-title { color: #d97706; }

/* Code Blocks */
.code-block-wrapper {
  margin: 1.75rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--code-bg);
}

.code-header {
  background: var(--code-header-bg);
  padding: 0.45rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #94a3b8;
  font-family: var(--font-mono);
}

.code-lang {
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent);
}

.copy-code-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #f1f5f9;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-code-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
}

pre {
  margin: 0;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--code-text);
}

code {
  font-family: var(--font-mono);
}

p code, li code {
  background: var(--bg-tertiary);
  color: var(--primary);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.88em;
}

/* Tables */
.table-container {
  overflow-x: auto;
  margin: 1.75rem 0;
}

.markdown-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.markdown-table th, .markdown-table td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
}

.markdown-table th {
  background: var(--bg-secondary);
  font-weight: 700;
  color: var(--text-primary);
}

.markdown-table tr:nth-child(even) {
  background: var(--bg-tertiary);
}

/* Author Box */
.author-box-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 3rem 0;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.author-big-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.author-box-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.author-box-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
  margin-bottom: 0.85rem;
}

.author-credentials-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8rem;
}

.author-tag {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

/* ==========================================================================
   Sidebar Widgets
   ========================================================================== */

.sidebar-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.widget-categories-list {
  list-style: none;
}

.widget-category-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.92rem;
}

.widget-category-item:last-child {
  border-bottom: none;
}

.widget-category-item a {
  color: var(--text-secondary);
  font-weight: 500;
}

.widget-category-item a:hover {
  color: var(--primary);
}

.category-count {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  font-weight: 600;
}

.widget-recent-posts {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mini-post-card h4 {
  font-size: 0.95rem;
  line-height: 1.4;
  margin-bottom: 0.25rem;
}

.mini-post-card h4 a {
  color: var(--text-primary);
}

.mini-post-card h4 a:hover {
  color: var(--primary);
}

.mini-post-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Newsletter Box
   ========================================================================== */

.newsletter-box {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(14, 165, 233, 0.08) 100%);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  margin: 3.5rem 0;
}

.newsletter-box h3 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.newsletter-box p {
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 1.5rem;
  font-size: 1rem;
}

.newsletter-form {
  display: flex;
  max-width: 460px;
  margin: 0 auto;
  gap: 0.5rem;
}

.newsletter-input {
  flex: 1;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  outline: none;
}

.newsletter-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.newsletter-btn:hover {
  background: var(--primary-hover);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 1.5rem 2rem;
  margin-top: auto;
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 1rem 0 1.25rem;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-contact-info p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-legal-links {
  display: flex;
  gap: 1.25rem;
}

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

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

/* ==========================================================================
   Cookie Consent Banner
   ========================================================================== */

.cookie-consent-bar {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  max-width: 650px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.75rem;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  transform: translateY(150%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-consent-bar.show {
  transform: translateY(0);
}

.cookie-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.cookie-actions {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
}

.cookie-btn-accept {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.cookie-btn-decline {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 992px) {
  .page-layout-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.1rem;
  }
  .article-view-title {
    font-size: 2rem;
  }
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
  .cookie-consent-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .cookie-actions {
    justify-content: flex-end;
  }
  .author-box-card {
    flex-direction: column;
    text-align: center;
  }
}