/**
 * Syed's World - High Performance Modern Stylesheet
 * Engineered for 100/100 Core Web Vitals, Responsive Design, and AdSense Integration
 */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --accent: #0ea5e9;
  --badge-bg: #eff6ff;
  --badge-text: #1d4ed8;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  
  --max-width: 1200px;
  --radius: 8px;
}

[data-theme="dark"] {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --accent: #38bdf8;
  --badge-bg: #1e293b;
  --badge-text: #93c5fd;
  --card-bg: #111827;
  --card-border: #1f2937;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 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-secondary);
  color: var(--text-primary);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease-in-out;
}
a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Navigation */
.site-header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-logo span {
  color: var(--primary);
}
.brand-logo:hover {
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 24px;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 0;
  transition: color 0.15s;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.search-form {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 14px 8px 34px;
  border-radius: 20px;
  font-size: 0.875rem;
  outline: none;
  width: 180px;
  transition: width 0.2s, border-color 0.2s;
}
.search-input:focus {
  width: 240px;
  border-color: var(--primary);
  background-color: var(--bg-primary);
}

.search-icon {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background-color 0.15s;
}
.theme-toggle-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* AdSense Containers (CLS Optimized) */
.adsense-container {
  margin: 25px auto;
  text-align: center;
  overflow: hidden;
  max-width: 100%;
}
.adsense-slot-placeholder {
  background-color: var(--bg-tertiary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}
.adsense-leaderboard {
  min-height: 90px;
  max-width: 728px;
}
.adsense-in-article {
  min-height: 250px;
  max-width: 100%;
  margin: 30px 0;
}
.adsense-sidebar {
  min-height: 250px;
  max-width: 300px;
}
.adsense-footer {
  min-height: 90px;
  max-width: 970px;
}

/* Main Layout Grid */
.main-wrapper {
  padding: 40px 0;
}
.content-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  align-items: start;
}
.full-width {
  grid-template-columns: 1fr;
}

/* Post Cards */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.post-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.post-card-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background-color: var(--bg-tertiary);
}
.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: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.category-badge {
  display: inline-block;
  background-color: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  width: fit-content;
}
.category-badge:hover {
  text-decoration: none;
  filter: brightness(0.95);
}

.post-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 10px;
}
.post-card-title a {
  color: var(--text-primary);
}
.post-card-title a:hover {
  color: var(--primary);
  text-decoration: none;
}

.post-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.55;
  margin-bottom: 16px;
  flex-grow: 1;
}

.post-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

/* Hero / Featured Section */
.featured-hero {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  margin-bottom: 40px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
}
.featured-hero-thumb {
  height: 100%;
  min-height: 340px;
  overflow: hidden;
}
.featured-hero-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.featured-hero-content {
  padding: 40px;
}
.featured-hero-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.25;
  margin: 14px 0 16px;
}
.featured-hero-title a {
  color: var(--text-primary);
}
.featured-hero-title a:hover {
  color: var(--primary);
  text-decoration: none;
}

/* Sidebar Widgets */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.widget {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--card-shadow);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.author-widget {
  text-align: center;
}
.author-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 16px;
  object-fit: cover;
  border: 3px solid var(--primary);
}
.author-widget h3 {
  font-size: 1.2rem;
  font-weight: 700;
}
.author-widget .author-role {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}
.author-widget p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.5;
}

.fiverr-badge-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #1dbf73;
  color: #ffffff !important;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 18px;
  border-radius: 6px;
  width: 100%;
  transition: background-color 0.15s;
}
.fiverr-badge-btn:hover {
  background-color: #179b5c;
  text-decoration: none;
}

.category-list {
  list-style: none;
}
.category-list li {
  border-bottom: 1px solid var(--border-color);
}
.category-list li:last-child {
  border-bottom: none;
}
.category-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  color: var(--text-primary);
  font-size: 0.925rem;
  font-weight: 500;
}
.category-list a:hover {
  color: var(--primary);
  text-decoration: none;
}
.category-count {
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
}

/* Single Article / Page View */
.article-header {
  margin-bottom: 30px;
}
.breadcrumbs {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.breadcrumbs a {
  color: var(--text-muted);
}
.breadcrumbs a:hover {
  color: var(--primary);
}

.article-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.875rem;
  color: var(--text-muted);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}
.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-featured-image {
  margin: 30px 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.article-featured-image img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
}

/* Rich Prose Typography */
.article-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-primary);
}
.article-content p {
  margin-bottom: 1.5em;
}
.article-content h2 {
  font-size: 1.7rem;
  font-weight: 700;
  margin: 1.8em 0 0.8em;
  line-height: 1.3;
}
.article-content h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 1.5em 0 0.6em;
  line-height: 1.35;
}
.article-content ul, .article-content ol {
  margin: 0 0 1.5em 1.5em;
}
.article-content li {
  margin-bottom: 0.5em;
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background-color: var(--bg-tertiary);
  padding: 18px 24px;
  margin: 2em 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--text-secondary);
}
.article-content pre {
  background-color: #0f172a;
  color: #f8fafc;
  padding: 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin: 1.8em 0;
}
.article-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--bg-tertiary);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: 4px;
}
.article-content pre code {
  color: inherit;
  background: none;
  padding: 0;
}
.article-content figure {
  margin: 2em 0;
}
.article-content figcaption {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
}

/* Author Box Below Article */
.author-box {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px;
  margin-top: 45px;
  display: flex;
  gap: 24px;
  align-items: center;
  box-shadow: var(--card-shadow);
}
.author-box-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
  border: 3px solid var(--primary);
}
.author-box-content h4 {
  font-size: 1.25rem;
  margin-bottom: 6px;
}
.author-box-content p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* Related Posts */
.related-posts-section {
  margin-top: 50px;
}
.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}
.page-btn {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
}
.page-btn.active, .page-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  text-decoration: none;
}

/* Contact & Static Page Styles */
.page-box {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--card-shadow);
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.9rem;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s;
}
.form-control:focus {
  border-color: var(--primary);
  background-color: var(--bg-primary);
}
.btn-submit {
  background-color: var(--primary);
  color: #ffffff;
  border: none;
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.15s;
}
.btn-submit:hover {
  background-color: var(--primary-hover);
}

/* Footer */
.site-footer {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  margin-top: 60px;
  padding: 60px 0 30px;
  color: var(--text-secondary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-col h4 {
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
  .featured-hero {
    grid-template-columns: 1fr;
  }
  .featured-hero-thumb {
    min-height: 240px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
  }
  .nav-menu.is-active {
    display: flex;
  }
  .mobile-menu-btn {
    display: block;
  }
  .article-title {
    font-size: 1.85rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .search-input {
    width: 130px;
  }
  .search-input:focus {
    width: 170px;
  }
}

/* ==========================================================================
   Answer Engine Optimization (AEO) UI Components
   Optimized for Google AI Overviews, Perplexity, ChatGPT Search, and Core UX
   ========================================================================== */
.aeo-direct-answer {
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
  border: 1px solid #bfdbfe;
  border-left: 4px solid var(--primary);
  border-radius: 12px;
  padding: 22px 24px;
  margin: 24px 0 30px;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.05);
}

[data-theme="dark"] .aeo-direct-answer {
  background: #111827;
  border-color: #1e3a8a;
  border-left-color: #3b82f6;
}

.aeo-answer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.aeo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.aeo-verified-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #ecfdf5;
  color: #059669;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
}

[data-theme="dark"] .aeo-verified-tag {
  background: #064e3b;
  color: #6ee7b7;
}

.aeo-summary-lead {
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.aeo-takeaways-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.aeo-summary-point {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
  position: relative;
  padding-left: 20px;
}

.aeo-summary-point::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: 800;
  font-size: 0.85rem;
}

.aeo-answer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* AEO FAQ Section */
.aeo-faq-container {
  margin: 40px 0;
  padding: 26px 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
}

.aeo-faq-header {
  margin-bottom: 18px;
}

.aeo-faq-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.aeo-faq-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.aeo-faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.aeo-faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.aeo-faq-item[open] {
  border-color: var(--primary);
}

.aeo-faq-question {
  padding: 14px 18px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  user-select: none;
}

.aeo-faq-question::-webkit-details-marker {
  display: none;
}

.aeo-faq-question .faq-icon {
  font-size: 1.1rem;
  color: var(--primary);
  font-weight: 700;
  transition: transform 0.2s ease;
}

.aeo-faq-item[open] .faq-icon {
  transform: rotate(45deg);
}

.aeo-faq-answer {
  padding: 0 18px 16px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  border-top: 1px dashed var(--border-color);
  margin-top: 4px;
  padding-top: 12px;
}