/* ============================================
   MotherboardCentral.com - Main Stylesheet
   Modern Tech Bright Theme
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --primary: #00d4ff;
  --primary-dark: #0099cc;
  --secondary: #7c3aed;
  --accent-green: #00ff88;
  --accent-orange: #ff6b35;
  --accent-pink: #ff3cac;
  --bg-dark: #0a0e17;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --bg-surface: #0f1520;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #1e293b;
  --border-glow: rgba(0, 212, 255, 0.3);
  --gradient-primary: linear-gradient(135deg, #00d4ff, #7c3aed);
  --gradient-hero: linear-gradient(135deg, #0a0e17 0%, #111827 50%, #0a0e17 100%);
  --gradient-card: linear-gradient(145deg, #111827, #0f1520);
  --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.15);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-width: 1340px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: #33ddff;
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0.75rem auto 0;
  font-size: 1.1rem;
}

/* --- Grid System --- */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-primary);
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.nav-logo span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(0, 212, 255, 0.08);
}

.nav-links a.active {
  color: var(--primary);
}

.nav-search {
  position: relative;
}

.nav-search input {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 0.5rem 1rem 0.5rem 2.5rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  width: 220px;
  transition: var(--transition);
  outline: none;
  font-family: var(--font-main);
}

.nav-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
  width: 280px;
}

.nav-search input::placeholder {
  color: var(--text-muted);
}

.nav-search .search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Mobile Menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-links a {
    width: 100%;
    padding: 0.75rem 1rem;
  }
  .nav-search {
    width: 100%;
  }
  .nav-search input {
    width: 100%;
  }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,14,23,0.4) 0%, rgba(10,14,23,0.85) 70%, var(--bg-dark) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
  font-size: clamp(2.5rem, 6vw, 4rem);
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat .stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Animated grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Floating circuit lines */
.hero-circuit {
  position: absolute;
  top: 20%;
  right: 5%;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 50%;
  z-index: 1;
  animation: float 6s ease-in-out infinite;
}

.hero-circuit::before {
  content: '';
  position: absolute;
  top: -30px;
  left: -30px;
  right: -30px;
  bottom: -30px;
  border: 1px solid rgba(124, 58, 237, 0.08);
  border-radius: 50%;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font-main);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
  color: #fff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  justify-content: center;
  border-radius: 50%;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
  background: var(--bg-surface);
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-img img {
  transform: scale(1.05);
}

.card-body {
  padding: 1.5rem;
}

.card-body h3 {
  margin-bottom: 0.5rem;
  font-size: 1.15rem;
}

.card-body p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

/* Review Card */
.review-card .card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--gradient-primary);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  z-index: 2;
}

.review-card .card-rating {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.review-card .stars {
  color: #fbbf24;
  font-size: 0.9rem;
}

.review-card .rating-number {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.review-card .card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.spec-tag {
  background: rgba(0, 212, 255, 0.08);
  color: var(--primary);
  padding: 0.2rem 0.65rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid rgba(0, 212, 255, 0.15);
}

.spec-tag.socket { border-color: rgba(124, 58, 237, 0.2); color: #a78bfa; background: rgba(124, 58, 237, 0.08); }
.spec-tag.chipset { border-color: rgba(0, 255, 136, 0.2); color: var(--accent-green); background: rgba(0, 255, 136, 0.08); }
.spec-tag.form-factor { border-color: rgba(255, 107, 53, 0.2); color: var(--accent-orange); background: rgba(255, 107, 53, 0.08); }

.review-card .card-price {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.review-card .price {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent-green);
}

.review-card .price .from {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* Guide Card */
.guide-card {
  position: relative;
}

.guide-card .card-img {
  height: 180px;
}

.guide-card .card-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}

.guide-card .read-time {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ============================================
   SEARCH & FILTER BAR
   ============================================ */
.filter-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin-bottom: 2.5rem;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.filter-group {
  flex: 1;
  min-width: 150px;
}

.filter-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.filter-group select,
.filter-group input[type="text"] {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-main);
  outline: none;
  transition: var(--transition);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.filter-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.filter-group select:focus,
.filter-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.filter-group select option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.search-large {
  position: relative;
  flex: 2;
  min-width: 250px;
}

.search-large input {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem 0.6rem 2.5rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-main);
  outline: none;
  transition: var(--transition);
}

.search-large input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.search-large .search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.filter-count {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.filter-count strong {
  color: var(--primary);
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--primary);
  padding: 0.3rem 0.75rem;
  border-radius: 50px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.filter-tag:hover {
  background: rgba(0, 212, 255, 0.2);
}

.filter-tag .remove {
  font-size: 1rem;
  line-height: 1;
}

/* ============================================
   COMPARISON TABLE
   ============================================ */
.compare-container {
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

.compare-table th,
.compare-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.compare-table thead th {
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: sticky;
  top: 72px;
  z-index: 10;
}

.compare-table tbody tr {
  transition: var(--transition);
}

.compare-table tbody tr:hover {
  background: rgba(0, 212, 255, 0.03);
}

.compare-table .spec-label {
  color: var(--text-secondary);
  font-weight: 500;
  min-width: 160px;
}

.compare-table .highlight {
  color: var(--accent-green);
  font-weight: 600;
}

.compare-selector {
  background: var(--bg-card);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  cursor: pointer;
}

.compare-selector:hover {
  border-color: var(--primary);
  background: rgba(0, 212, 255, 0.03);
}

.compare-selector .plus-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

/* ============================================
   PAGE HERO (Sub-pages)
   ============================================ */
.page-hero {
  position: relative;
  padding: 10rem 0 4rem;
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
}

.page-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,14,23,0.6) 0%, var(--bg-dark) 100%);
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero h1 {
  margin-bottom: 1rem;
}

.page-hero p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  max-width: 600px;
}

.page-hero-compact {
  padding: 5.5rem 0 1rem;
}

.page-hero-compact h1 {
  font-size: 1.6rem;
  margin-bottom: 0.2rem;
}

.page-hero-compact p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

.page-hero-compact + .section {
  padding-top: 1.5rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--text-muted);
}

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

.breadcrumb .separator {
  color: var(--text-muted);
}

.breadcrumb .current {
  color: var(--text-secondary);
}

/* ============================================
   GUIDE CONTENT
   ============================================ */
.guide-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
  align-items: start;
}

.guide-sidebar {
  position: sticky;
  top: 92px;
}

.guide-toc {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.guide-toc h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.guide-toc ul li {
  margin-bottom: 0.25rem;
}

.guide-toc ul li a {
  display: block;
  padding: 0.4rem 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: var(--transition);
}

.guide-toc ul li a:hover,
.guide-toc ul li a.active {
  color: var(--primary);
  background: rgba(0, 212, 255, 0.05);
  border-left-color: var(--primary);
}

.guide-content {
  max-width: 800px;
}

.guide-content h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.guide-content h2:first-child {
  margin-top: 0;
}

.guide-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--primary);
}

.guide-content p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.guide-content ul,
.guide-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.guide-content ul { list-style: disc; }
.guide-content ol { list-style: decimal; }

.guide-content li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.guide-content img {
  border-radius: var(--radius);
  margin: 2rem 0;
  border: 1px solid var(--border-color);
}

.guide-content strong {
  color: var(--text-primary);
}

/* Info Box */
.info-box {
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.info-box.warning {
  background: rgba(255, 107, 53, 0.05);
  border-color: rgba(255, 107, 53, 0.2);
  border-left-color: var(--accent-orange);
}

.info-box.tip {
  background: rgba(0, 255, 136, 0.05);
  border-color: rgba(0, 255, 136, 0.2);
  border-left-color: var(--accent-green);
}

.info-box h4 {
  color: var(--primary);
  margin-bottom: 0.4rem;
  font-size: 1rem;
}

.info-box.warning h4 { color: var(--accent-orange); }
.info-box.tip h4 { color: var(--accent-green); }

.info-box p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Spec Table in guides */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.spec-table th,
.spec-table td {
  padding: 0.85rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.spec-table thead th {
  background: var(--bg-card);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.spec-table tbody tr {
  transition: var(--transition);
}

.spec-table tbody tr:hover {
  background: rgba(0, 212, 255, 0.03);
}

.spec-table tbody td {
  color: var(--text-secondary);
}

.spec-table tbody td:first-child {
  color: var(--text-primary);
  font-weight: 500;
}

@media (max-width: 900px) {
  .guide-layout {
    grid-template-columns: 1fr;
  }
  .guide-sidebar {
    position: static;
    order: -1;
  }
}

/* ============================================
   CATEGORY CARDS (Homepage)
   ============================================ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.category-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

.category-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  color: inherit;
}

.category-card .cat-icon {
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.15);
}

.category-card .cat-icon.purple {
  background: rgba(124, 58, 237, 0.1);
  border-color: rgba(124, 58, 237, 0.15);
}

.category-card .cat-icon.green {
  background: rgba(0, 255, 136, 0.1);
  border-color: rgba(0, 255, 136, 0.15);
}

.category-card .cat-icon.orange {
  background: rgba(255, 107, 53, 0.1);
  border-color: rgba(255, 107, 53, 0.15);
}

.category-card .cat-icon.pink {
  background: rgba(255, 60, 172, 0.1);
  border-color: rgba(255, 60, 172, 0.15);
}

.category-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.category-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ============================================
   FEATURED SECTION
   ============================================ */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.featured-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(0, 212, 255, 0.3);
  color: inherit;
}

.featured-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.featured-card:hover img {
  transform: scale(1.05);
}

.featured-card .featured-overlay {
  position: relative;
  z-index: 2;
  padding: 2rem;
  background: linear-gradient(to top, rgba(10,14,23,0.95) 0%, transparent 100%);
  width: 100%;
}

.featured-card .featured-tag {
  display: inline-block;
  background: var(--gradient-primary);
  color: #fff;
  padding: 0.2rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.featured-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
}

.featured-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .featured-grid { grid-template-columns: 1fr; }
}

/* ============================================
   NEWSLETTER / CTA
   ============================================ */
.cta-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 212, 255, 0.05) 0%, transparent 60%);
}

.cta-section h2 {
  margin-bottom: 1rem;
  position: relative;
}

.cta-section p {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 2rem;
  position: relative;
}

.cta-form {
  display: flex;
  gap: 0.75rem;
  max-width: 450px;
  margin: 0 auto;
  position: relative;
}

.cta-form input {
  flex: 1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 0.75rem 1.5rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  font-family: var(--font-main);
}

.cta-form input:focus {
  border-color: var(--primary);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .nav-logo {
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary);
}

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

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Pulse glow for accent elements */
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 10px rgba(0, 212, 255, 0.2); }
  50% { box-shadow: 0 0 25px rgba(0, 212, 255, 0.4); }
}

/* ============================================
   REVIEW DETAIL PAGE
   ============================================ */
.review-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 2rem 0;
}

.review-hero-img {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.review-hero-img img {
  max-height: 400px;
  object-fit: contain;
}

.review-hero-info h1 {
  margin-bottom: 0.75rem;
}

.review-hero-info .brand {
  color: var(--primary);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.review-hero-info .rating-large {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
}

.review-hero-info .rating-large .score {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.review-hero-info .rating-large .out-of {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.pros, .cons {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

.pros h4 { color: var(--accent-green); margin-bottom: 1rem; }
.cons h4 { color: var(--accent-orange); margin-bottom: 1rem; }

.pros ul, .cons ul {
  list-style: none;
  padding: 0;
}

.pros li, .cons li {
  padding: 0.4rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.pros li::before {
  content: '+';
  color: var(--accent-green);
  font-weight: 700;
  font-size: 1.1rem;
}

.cons li::before {
  content: '-';
  color: var(--accent-orange);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Quick Specs Panel */
.quick-specs {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}

.quick-specs h3 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.quick-specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.quick-spec-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.quick-spec-item .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.quick-spec-item .value {
  font-weight: 600;
  color: var(--text-primary);
}

/* Amazon button */
.amazon-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: #ff9900;
  color: #111;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.amazon-btn:hover {
  background: #ffad33;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 153, 0, 0.3);
  color: #111;
}

/* ============================================
   COMPARISON PAGE SPECIFIC
   ============================================ */
.compare-section-top {
  padding-top: 7rem;
}

.compare-slots {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.compare-slot {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  flex: 1 1 180px;
  max-width: 240px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.compare-slot select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-main);
  cursor: pointer;
}

.compare-slot-info {
  text-align: center;
  padding: 0.25rem 0;
}

.compare-slot-info h4 {
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.compare-slot-info .slot-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.compare-remove-btn {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 59, 48, 0.15);
  color: #ff3b30;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.compare-remove-btn:hover {
  background: rgba(255, 59, 48, 0.3);
}

.compare-add-btn {
  background: transparent;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  padding: 1rem;
  flex: 1 1 180px;
  max-width: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 0.85rem;
}

.compare-add-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0, 212, 255, 0.03);
}

.compare-add-btn .plus-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
}

.compare-placeholder {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}

.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.compare-table-wrap table {
  width: 100%;
  border-collapse: collapse;
}

.compare-table-wrap thead th {
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
  white-space: nowrap;
}

.compare-table-wrap thead th:first-child {
  min-width: 140px;
  color: var(--text-secondary);
}

.compare-table-wrap tbody td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  font-size: 0.9rem;
  color: var(--text-primary);
}

.compare-table-wrap tbody tr:hover {
  background: rgba(0, 212, 255, 0.02);
}

.compare-table-wrap tbody td:first-child {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.85rem;
}

.compare-table-wrap tbody td.highlight {
  color: var(--accent-green);
  font-weight: 600;
}

.compare-table-wrap tbody tr:last-child td {
  border-bottom: none;
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.hidden { display: none; }

/* No results */
.no-results {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.no-results h3 {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  border: none;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
}

/* ============================================
   SEARCH RESULTS DROPDOWN
   ============================================ */
.search-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-top: 0.5rem;
  max-height: 400px;
  overflow-y: auto;
  z-index: 100;
  display: none;
  box-shadow: var(--shadow-card);
}

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

.search-result-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.search-result-item:hover {
  background: rgba(0, 212, 255, 0.05);
  color: inherit;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item .result-type {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  background: rgba(0, 212, 255, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  font-weight: 600;
}

.search-result-item .result-title {
  font-weight: 500;
}

.search-result-item .result-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
  .hero {
    min-height: 70vh;
  }
  .hero-content {
    padding: 2rem 1.5rem;
  }
  .hero-stats {
    gap: 1.5rem;
  }
  .section {
    padding: 3rem 0;
  }
  .cta-section {
    padding: 2.5rem 1.5rem;
  }
  .cta-form {
    flex-direction: column;
  }
  .review-hero {
    grid-template-columns: 1fr;
  }
  .pros-cons {
    grid-template-columns: 1fr;
  }
  .hero-circuit {
    display: none;
  }
  .compare-slots {
    flex-direction: column;
  }
  .compare-slot,
  .compare-add-btn {
    max-width: 100%;
  }
  .compare-table-wrap {
    font-size: 0.85rem;
  }
  .page-hero-compact {
    padding: 6rem 0 1.5rem;
  }
}

@media (max-width: 480px) {
  .nav-search { display: none; }
  .container { padding: 0 1rem; }
}

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