/* ========== RESET & BASE ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg-main: #FAFBFC;
  --bg-card: #FFFFFF;
  --bg-section: #F0F2F5;
  --bg-hero: #F6F8FB;
  --text-heading: #1A1A2E;
  --text-body: #374151;
  --text-sub: #6B7280;
  --text-muted: #9CA3AF;
  --accent-primary: #2563EB;
  --accent-hover: #3B82F6;
  --accent-light: #DBEAFE;
  --accent-lighter: #EFF6FF;
  --tag-blue: #2563EB;
  --tag-blue-bg: #DBEAFE;
  --tag-teal: #0D9488;
  --tag-teal-bg: #CCFBF1;
  --tag-purple: #7C3AED;
  --tag-purple-bg: #EDE9FE;
  --rating-color: #F59E0B;
  --pros-color: #059669;
  --pros-bg: #ECFDF5;
  --cons-color: #DC2626;
  --cons-bg: #FEF2F2;
  --border-color: #E5E7EB;
  --border-light: #F3F4F6;
  --font-body: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-heading: 'Shippori Mincho', 'Yu Mincho', serif;
  --max-width: 1200px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 10px 30px rgba(0,0,0,0.08), 0 4px 8px rgba(0,0,0,0.04);
  --shadow-header: 0 1px 3px rgba(0,0,0,0.04);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-main);
  color: var(--text-body);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-section); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* ========== HEADER ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-header);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: opacity var(--transition);
}
.logo:hover { opacity: 0.8; }
.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  font-family: var(--font-heading);
}
.logo-icon-img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
}
.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-heading);
  letter-spacing: 0.02em;
}
.logo-text small {
  display: block;
  font-size: 0.6rem;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-sub);
  letter-spacing: 0.08em;
  margin-top: -2px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}
.nav-link {
  position: relative;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-sub);
  transition: color var(--transition);
  padding: 0.3rem 0;
}
.nav-link:hover { color: var(--accent-primary); }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav-link.active { color: var(--accent-primary); }

/* ========== HERO SECTION ========== */
.hero-section {
  background: var(--bg-hero);
  border-bottom: 1px solid var(--border-light);
  padding: 3.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--border-color) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
}
.hero-content {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 0.8rem;
  letter-spacing: 0.02em;
}
.hero-subtitle {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.8;
}
.hero-accent {
  display: inline-block;
  margin-top: 1.2rem;
  padding: 0.4rem 1.2rem;
  background: var(--accent-light);
  color: var(--accent-primary);
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: 20px;
  letter-spacing: 0.04em;
}

.hero-concept {
  margin-top: 0.8rem;
  font-size: 0.85rem;
  color: var(--text-sub);
  letter-spacing: 0.01em;
}

.site-concept-note {
  background: var(--bg-section);
  border-left: 3px solid var(--accent-primary);
  padding: 0.9rem 1.2rem;
  margin-bottom: 2rem;
  font-size: 0.82rem;
  color: var(--text-sub);
  line-height: 1.7;
  border-radius: 0 8px 8px 0;
}

/* ========== CONTAINER ========== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ========== SECTION TITLE ========== */
.section-heading {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 2rem;
  padding-top: 2.5rem;
}
.section-heading h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-heading);
}
.section-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* ========== ARTICLE GRID ========== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
  padding-bottom: 2rem;
}

/* ========== ARTICLE CARD ========== */
.article-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  animation: cardAppear 0.5s ease both;
}
.article-card:nth-child(1) { animation-delay: 0.04s; }
.article-card:nth-child(2) { animation-delay: 0.08s; }
.article-card:nth-child(3) { animation-delay: 0.12s; }
.article-card:nth-child(4) { animation-delay: 0.16s; }
.article-card:nth-child(5) { animation-delay: 0.20s; }
.article-card:nth-child(6) { animation-delay: 0.24s; }
@keyframes cardAppear {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}
.card-thumbnail {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
}
.card-category {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
  z-index: 2;
  letter-spacing: 0.02em;
}
.tag-blue { background: var(--tag-blue-bg); color: var(--tag-blue); }
.tag-teal { background: var(--tag-teal-bg); color: var(--tag-teal); }
.tag-purple { background: var(--tag-purple-bg); color: var(--tag-purple); }

.card-body {
  padding: 1.2rem 1.4rem 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}
.card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.card-meta-dot { color: var(--border-color); }
.card-excerpt {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.card-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--accent-primary);
  font-weight: 500;
  margin-top: 0.8rem;
  transition: gap var(--transition);
}
.article-card:hover .card-read-more { gap: 0.6rem; }

/* ========== CSS THUMBNAILS ========== */
/* Thumbnail backgrounds */
.card-thumbnail[data-visual="1"]  { background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #60a5fa 100%); }
.card-thumbnail[data-visual="2"]  { background: linear-gradient(160deg, #1f2937 0%, #4b5563 40%, #6366f1 100%); }
.card-thumbnail[data-visual="3"]  { background: linear-gradient(140deg, #0d4f4f 0%, #0d9488 60%, #5eead4 100%); }
.card-thumbnail[data-visual="4"]  { background: linear-gradient(135deg, #1e293b 0%, #2563eb 60%, #f97316 100%); }
.card-thumbnail[data-visual="5"]  { background: linear-gradient(135deg, #2e1065 0%, #7c3aed 50%, #c4b5fd 100%); }
.card-thumbnail[data-visual="6"]  { background: linear-gradient(160deg, #1a1a2e 0%, #6d28d9 50%, #a78bfa 100%); }
.card-thumbnail[data-visual="7"]  { background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 50%, #93c5fd 100%); }
.card-thumbnail[data-visual="8"]  { background: linear-gradient(140deg, #134e4a 0%, #0f766e 50%, #2dd4bf 100%); }
.card-thumbnail[data-visual="9"]  { background: linear-gradient(135deg, #064e3b 0%, #0d9488 60%, #6ee7b7 100%); }
.card-thumbnail[data-visual="10"] { background: linear-gradient(150deg, #1e3a5f 0%, #3b82f6 50%, #bfdbfe 100%); }
.card-thumbnail[data-visual="11"] { background: linear-gradient(135deg, #1e1b4b 0%, #6d28d9 60%, #ddd6fe 100%); }
.card-thumbnail[data-visual="12"] { background: linear-gradient(160deg, #0c4a4a 0%, #0f766e 40%, #99f6e4 100%); }
.card-thumbnail[data-visual="13"] { background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #64748b 100%); }

/* Shared glow behind icon */
.card-thumbnail::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

/* Shared Font Awesome icon base */
.card-thumbnail::after {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2.8rem;
  color: rgba(255,255,255,0.3);
  z-index: 1;
}

/* Individual icons */
.card-thumbnail[data-visual="1"]::after  { content: '\f109'; } /* laptop */
.card-thumbnail[data-visual="2"]::after  { content: '\f2db'; } /* microchip (GPU) */
.card-thumbnail[data-visual="3"]::after  { content: '\f1eb'; } /* wifi */
.card-thumbnail[data-visual="4"]::after  { content: '\f085'; } /* gears (CPU) */
.card-thumbnail[data-visual="5"]::after  { content: '\f11c'; } /* keyboard */
.card-thumbnail[data-visual="6"]::after  { content: '\f8cc'; } /* computer-mouse */
.card-thumbnail[data-visual="7"]::after  { content: '\f108'; } /* desktop (monitor) */
.card-thumbnail[data-visual="8"]::after  { content: '\f0a0'; } /* hard-drive (SSD) */
.card-thumbnail[data-visual="9"]::after  { content: '\f519'; } /* tower-broadcast (mesh wifi) */
.card-thumbnail[data-visual="10"]::after { content: '\f233'; } /* server (mini PC) */
.card-thumbnail[data-visual="11"]::after { content: '\f1b2'; } /* cube (PC case) */
.card-thumbnail[data-visual="12"]::after { content: '\f0e7'; } /* bolt (PSU) */
.card-thumbnail[data-visual="13"]::after { content: '\f03d'; } /* video (security camera) */

/* ========== DETAIL HERO (WIDE) ========== */
.detail-hero {
  aspect-ratio: 21 / 9;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 2rem;
}

/* ========== PAGINATION ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  padding: 2rem 0 3rem;
}
.pagination-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-primary);
  background: var(--bg-card);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.pagination-btn:hover:not(:disabled) {
  background: var(--accent-primary);
  color: #fff;
}
.pagination-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.pagination-info {
  font-size: 0.85rem;
  color: var(--text-sub);
  min-width: 80px;
  text-align: center;
}

/* ========== DETAIL PAGE ========== */
.detail-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem;
  animation: fadeSlideIn 0.4s ease both;
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-sub);
  transition: color var(--transition);
}
.breadcrumb a:hover { color: var(--accent-primary); }
.breadcrumb-sep { color: var(--border-color); }

/* Detail Header */
.detail-header { margin-bottom: 2rem; }
.detail-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.8rem;
  border-radius: 20px;
  margin-bottom: 0.8rem;
}
.detail-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.5;
  margin-bottom: 0.6rem;
}
.detail-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Detail Body */
.detail-body {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-body);
  margin-bottom: 2.5rem;
}
.detail-body p { margin-bottom: 1.2rem; }
.detail-body p:last-child { margin-bottom: 0; }

/* Specs Table */
.detail-section { margin-bottom: 2.5rem; }
.detail-section-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent-primary);
  display: inline-block;
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.specs-table tr { border-bottom: 1px solid var(--border-light); }
.specs-table tr:nth-child(even) { background: var(--bg-section); }
.specs-table th {
  text-align: left;
  padding: 0.8rem 1rem;
  font-weight: 500;
  color: var(--text-sub);
  width: 35%;
  border-left: 3px solid var(--accent-primary);
  background: transparent;
}
.specs-table td {
  padding: 0.8rem 1rem;
  color: var(--text-heading);
  font-weight: 500;
}

/* Rating */
.rating-display {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.rating-score {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--rating-color);
  line-height: 1;
}
.rating-stars { display: flex; gap: 0.15rem; }
.rating-star { font-size: 1.4rem; color: var(--text-muted); }
.rating-star.filled { color: var(--rating-color); }
.rating-label {
  font-size: 0.82rem;
  color: var(--text-sub);
  margin-top: 0.2rem;
}

/* Pros / Cons */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.pros-section, .cons-section {
  padding: 1.4rem;
  border-radius: var(--radius);
}
.pros-section { background: var(--pros-bg); border: 1px solid #D1FAE5; }
.cons-section { background: var(--cons-bg); border: 1px solid #FECACA; }
.pros-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--pros-color);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.cons-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--cons-color);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.pros-list li, .cons-list li {
  font-size: 0.88rem;
  padding: 0.35rem 0;
  padding-left: 1.2rem;
  position: relative;
  color: var(--text-body);
}
.pros-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--pros-color);
  font-weight: 700;
}
.cons-list li::before {
  content: '\2717';
  position: absolute;
  left: 0;
  color: var(--cons-color);
  font-weight: 700;
}

/* Related Articles */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow var(--transition), transform var(--transition);
}
.related-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.related-thumbnail { aspect-ratio: 16 / 9; position: relative; }
.related-body { padding: 0.8rem 1rem; }
.related-title {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-heading);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-cat {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--accent-primary);
  font-weight: 500;
  margin-top: 2rem;
  transition: gap var(--transition);
}
.back-link:hover { gap: 0.6rem; }

/* ========== CATEGORY GRID ========== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.8rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
}
.category-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}
.category-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--bg-section);
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
  text-align: center;
  margin-top: 2rem;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; }
.footer-copy { font-size: 0.78rem; color: var(--text-muted); }
.footer-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
  font-family: var(--font-heading);
}
.footer-affiliate {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border-color);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== PURCHASE SECTION ========== */
.purchase-section {
  background: var(--accent-lighter);
  border: 1px solid var(--accent-light);
  border-radius: var(--radius);
  padding: 1.6rem;
  margin-bottom: 2.5rem;
}
.purchase-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 0.6rem;
}
.purchase-price {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 1rem;
}
.purchase-price small {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-sub);
}
.purchase-buttons {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.8rem;
}
.purchase-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: var(--font-body);
  text-decoration: none;
}
.purchase-btn-amazon {
  background: #FF9900;
  color: #111;
}
.purchase-btn-amazon:hover {
  background: #e68a00;
}
.purchase-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========== PAGE TRANSITION ========== */
.page-enter { animation: fadeSlideIn 0.35s ease-out both; }

/* ========== NOT FOUND ========== */
.not-found {
  text-align: center;
  padding: 6rem 2rem;
  animation: fadeSlideIn 0.4s ease both;
}
.not-found h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--text-heading);
  margin-bottom: 0.8rem;
}
.not-found p { color: var(--text-sub); margin-bottom: 1.5rem; }
.not-found a { color: var(--accent-primary); font-weight: 500; }

/* ========== RESPONSIVE ========== */
/* Hamburger menu button */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-heading);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Half star */
.rating-star.half {
  position: relative;
  color: var(--text-muted);
}
.rating-star.half::before {
  content: '\2605';
  position: absolute;
  left: 0;
  top: 0;
  overflow: hidden;
  width: 50%;
  color: var(--rating-color);
}

@media (max-width: 768px) {
  .header-inner { padding: 0 1rem; }
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    flex-direction: column;
    padding: 0.5rem 0;
  }
  .site-nav.open { display: flex; }
  .site-nav .nav-link {
    padding: 0.75rem 1.5rem;
    border-bottom: none;
  }
  .hero-section { padding: 2.5rem 1.2rem; }
  .hero-title { font-size: 1.5rem; }
  .container { padding: 0 1rem; }
  .article-grid { grid-template-columns: 1fr; }
  .detail-page { padding: 1.2rem; }
  .detail-title { font-size: 1.4rem; }
  .detail-hero { aspect-ratio: 16 / 9; }
  .pros-cons { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .rating-score { font-size: 2rem; }
}
@media (max-width: 480px) {
  .article-grid { gap: 1rem; }
  .related-grid { grid-template-columns: 1fr; }
}