/* ============================================
   QUEL ECRAN CHOISIR - Dark Tech Design
   Unique: monitor-inspired, pixel grid, cyan accent
   ============================================ */

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

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a25;
  --bg-surface: #16161f;
  --bg-surface-alt: #0e0e15;
  --border: #1e1e2e;
  --border-light: #2a2a3a;
  --cyan: #00d4ff;
  --cyan-dark: #00a8cc;
  --cyan-glow: rgba(0, 212, 255, 0.15);
  --cyan-glow-strong: rgba(0, 212, 255, 0.3);
  --purple: #8b5cf6;
  --purple-glow: rgba(139, 92, 246, 0.15);
  --green: #22c55e;
  --green-dim: #16a34a;
  --orange: #f59e0b;
  --red: #ef4444;
  --text: #e4e4ed;
  --text-dim: #9898a8;
  --text-muted: #5a5a6e;
  --white: #ffffff;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --max-w: 1200px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-cyan: 0 0 20px rgba(0, 212, 255, 0.1);
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scrollbar-color: var(--border-light) var(--bg);
}

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

/* Pixel grid background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

img { max-width: 100%; height: auto; }
a { color: var(--cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--white); }

h1, h2, h3, h4 {
  color: var(--white);
  line-height: 1.25;
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-bottom: 0.75rem; }
h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1rem; color: var(--text-dim); }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

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

.nav a {
  color: var(--text-dim);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: all var(--transition);
}

.nav a:hover, .nav a.active {
  color: var(--white);
  background: var(--cyan-glow);
}

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

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.2rem;
  align-items: center;
  justify-content: center;
}

/* ===== HERO ===== */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, var(--cyan-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-badge span {
  color: var(--cyan);
  font-weight: 600;
}

.hero h1 {
  max-width: 700px;
  margin: 0 auto 1.25rem;
  letter-spacing: -0.03em;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  max-width: 560px;
  margin: 0 auto 2.5rem;
  font-size: 1.1rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ===== CATEGORY CARDS (homepage) ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 4rem;
}

.cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.cat-card:hover {
  border-color: var(--cyan);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-cyan);
}

.cat-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.cat-icon--gaming { background: linear-gradient(135deg, #ef4444, #f97316); }
.cat-icon--bureau { background: linear-gradient(135deg, #3b82f6, #06b6d4); }
.cat-icon--creation { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.cat-icon--dev { background: linear-gradient(135deg, #22c55e, #06b6d4); }
.cat-icon--ultrawide { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.cat-icon--budget { background: linear-gradient(135deg, #6366f1, #8b5cf6); }

.cat-card h3 { font-size: 1.1rem; color: var(--white); }
.cat-card p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

/* ===== SECTION TITLES ===== */
.section {
  padding: 3rem 0;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-light), transparent);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: var(--cyan-glow);
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

/* ===== MONITOR PRODUCT CARDS ===== */
.monitor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.75rem;
  transition: all 0.3s ease;
}

.monitor-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-lg);
}

.monitor-card--top {
  border-color: var(--cyan);
  position: relative;
}

.monitor-card--top::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
}

.card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 2;
}

.card-inner {
  display: grid;
  grid-template-columns: 280px 1fr auto;
  gap: 0;
}

.card-visual {
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-alt);
  position: relative;
  min-height: 200px;
}

/* Product image in card */
.card-visual img {
  max-width: 220px;
  max-height: 180px;
  object-fit: contain;
  transition: transform 0.3s ease;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

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

/* Monitor frame fallback (when no image) */
.monitor-frame {
  width: 180px;
  height: 120px;
  background: var(--bg);
  border: 3px solid var(--border-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.monitor-frame::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 16px;
  background: var(--border-light);
  border-radius: 0 0 4px 4px;
}

.monitor-frame .screen-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--cyan);
  opacity: 0.6;
  text-align: center;
  line-height: 1.5;
}

.card-content {
  padding: 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Spec pills */
.specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.spec {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 500;
}

.spec-label {
  color: var(--text-muted);
  font-weight: 400;
}

.spec-value {
  color: var(--white);
  font-weight: 600;
}

.spec--highlight {
  border-color: var(--cyan);
  background: var(--cyan-glow);
}

.spec--highlight .spec-value {
  color: var(--cyan);
}

/* Score bars */
.scores {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem 1.5rem;
  margin-top: 0.5rem;
}

.score-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.score-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 70px;
  white-space: nowrap;
}

.score-bar {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.score-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s ease;
}

.score-fill--excellent { background: linear-gradient(90deg, var(--green), #4ade80); }
.score-fill--good { background: linear-gradient(90deg, var(--cyan), #67e8f9); }
.score-fill--average { background: linear-gradient(90deg, var(--orange), #fbbf24); }
.score-fill--poor { background: linear-gradient(90deg, var(--red), #f87171); }

.score-num {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  min-width: 28px;
  text-align: right;
}

.score-num--excellent { color: var(--green); }
.score-num--good { color: var(--cyan); }
.score-num--average { color: var(--orange); }

/* Card action panel */
.card-action {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border-left: 1px solid var(--border);
  min-width: 200px;
  text-align: center;
}

.price {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

.price-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: -0.25rem;
}

.btn-amazon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #ff9900, #ffad33);
  color: #111;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  width: 100%;
  border: none;
  cursor: pointer;
}

.btn-amazon:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(255, 153, 0, 0.3);
  color: #111;
}

.btn-details {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  width: 100%;
  cursor: pointer;
}

.btn-details:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ===== PROS / CONS ===== */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg-surface-alt);
}

.pros-cons--hidden {
  display: none;
}

.pros li, .cons li {
  font-size: 0.85rem;
  color: var(--text-dim);
  list-style: none;
  padding: 0.2rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.pros li::before {
  content: '+';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
  font-family: var(--font-mono);
}

.cons li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 700;
  font-family: var(--font-mono);
}

/* ===== COMPARISON TABLE ===== */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin: 2rem 0;
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.comp-table thead {
  background: var(--bg-surface);
}

.comp-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-dim);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.comp-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

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

.comp-table tbody tr:hover {
  background: var(--bg-card-hover);
}

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

.comp-table .model-name {
  font-weight: 600;
  color: var(--white);
}

.comp-table .price-cell {
  font-weight: 700;
  color: var(--cyan);
  font-family: var(--font-mono);
}

/* ===== GUIDE SECTIONS ===== */
.guide-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
}

.guide-block h3 {
  color: var(--cyan);
  margin-bottom: 1rem;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.guide-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.guide-item h4 {
  color: var(--white);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.guide-item p {
  font-size: 0.85rem;
  margin: 0;
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 2rem 0;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-q {
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--white);
  font-size: 0.95rem;
  transition: background var(--transition);
  user-select: none;
}

.faq-q:hover {
  background: var(--bg-card-hover);
}

.faq-q::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--cyan);
  font-weight: 300;
  font-family: var(--font-mono);
  transition: transform var(--transition);
}

.faq-item.open .faq-q::after {
  content: '-';
}

.faq-a {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-a {
  padding: 0 1.5rem 1.25rem;
  max-height: 500px;
}

.faq-a p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 1.5rem 0 0;
}

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

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

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

/* ===== PAGE HERO (category pages) ===== */
.page-hero {
  padding: 3rem 0 2rem;
  position: relative;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, var(--cyan-glow) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 {
  max-width: 600px;
}

.page-hero .hero-sub {
  max-width: 600px;
  margin: 0;
}

/* ===== QUICK NAV (in-page) ===== */
.quick-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.quick-nav a {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dim);
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 50px;
  transition: all var(--transition);
}

.quick-nav a:hover, .quick-nav a.active {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--cyan-glow);
}

/* ===== FOOTER ===== */
.footer {
  margin-top: 4rem;
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

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

.footer-brand p {
  font-size: 0.85rem;
  max-width: 300px;
}

.footer h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.footer ul {
  list-style: none;
}

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

.footer ul a {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer ul a:hover {
  color: var(--cyan);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.affiliate-notice {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 2rem 0;
  line-height: 1.6;
}

/* ===== TOC (Table of Contents) ===== */
.toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}

.toc h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.toc ol {
  list-style: none;
  counter-reset: toc;
}

.toc li {
  counter-increment: toc;
  padding: 0.35rem 0;
}

.toc li a {
  color: var(--text-dim);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc li a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  font-weight: 600;
  min-width: 22px;
}

.toc li a:hover {
  color: var(--white);
}

/* ===== VERDICT BOX ===== */
.verdict {
  background: linear-gradient(135deg, var(--cyan-glow), var(--purple-glow));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
}

.verdict h3 {
  color: var(--white);
  margin-bottom: 0.75rem;
}

.verdict p {
  color: var(--text);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .card-inner {
    grid-template-columns: 200px 1fr auto;
  }
}

@media (max-width: 868px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-inner {
    grid-template-columns: 1fr;
  }

  .card-visual {
    min-height: 140px;
    padding: 1.5rem;
  }

  .card-action {
    border-left: none;
    border-top: 1px solid var(--border);
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    padding: 1.25rem;
  }

  .price {
    font-size: 1.5rem;
  }

  .btn-amazon, .btn-details {
    width: auto;
    flex: 1;
    min-width: 140px;
  }

  .pros-cons {
    grid-template-columns: 1fr;
    padding: 1.25rem 1.5rem;
  }

  .scores {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    gap: 0.25rem;
  }
  .nav.open a {
    padding: 0.75rem 1rem;
    border-radius: 8px;
  }
  .mobile-toggle {
    display: flex;
  }
}

@media (max-width: 580px) {
  .categories-grid {
    grid-template-columns: 1fr;
  }

  .hero { padding: 3rem 0 2rem; }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .card-content {
    padding: 1.25rem 1.5rem;
  }

  .card-action {
    flex-direction: column;
  }

  .btn-amazon, .btn-details {
    width: 100%;
  }
}

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

.text-cyan { color: var(--cyan); }
.text-green { color: var(--green); }
.text-orange { color: var(--orange); }
.text-white { color: var(--white); }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }