/* Laptop Deal Finder - Styles */

:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --success-color: #16a34a;
  --success-bg: #dcfce7;
  --warning-color: #ca8a04;
  --warning-bg: #fef9c3;
  --danger-color: #dc2626;
  --danger-bg: #fee2e2;
  --neutral-color: #6b7280;
  --neutral-bg: #f3f4f6;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.5;
}

/* Header */
.header {
  background: var(--card-bg);
  padding: 8px 2rem 0;
}

.header .logo {
  margin-bottom: 8px;
}

.header-content {
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  gap: 2rem;
}

/* Main brand logo (Deals Academy) */
.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo-img {
  height: 120px;
  width: auto;
}

/* Category selector (TV, Laptop, etc.) */
.category-selector {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.category-label {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin-right: 0.5rem;
}

.category-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
  opacity: 0.4;
  filter: grayscale(100%);
}

.category-item:hover {
  opacity: 0.7;
  filter: grayscale(50%);
  background: rgba(255, 255, 255, 0.05);
}

.category-item.category-active {
  opacity: 1;
  filter: none;
  background: rgba(255, 255, 255, 0.1);
}

.category-icon {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.category-name {
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Legacy logo styles (keep for compatibility) */
.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.logo-img {
  height: 200px;
  width: auto;
  display: block;
}

.stats-bar {
  background: #1e3a5f;
  padding: 0.75rem 2rem;
  display: flex;
  justify-content: center;
  gap: 3rem;
}

.header-stat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

.header-stat strong {
  color: #fff;
  font-size: 1.1rem;
}

.header-link {
  text-decoration: none;
  transition: opacity 0.15s;
}

.header-link:hover {
  opacity: 0.8;
}

/* Affiliate Disclosure Banner */
.affiliate-banner {
  background: #fef3c7;
  color: #92400e;
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

.affiliate-banner a {
  color: #92400e;
  font-weight: 600;
  text-decoration: underline;
}

.affiliate-banner a:hover {
  color: #78350f;
}

/* Deal of the Day */
/* SEO Intro Section */
.seo-intro {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border-bottom: 1px solid var(--border-color);
}

.seo-intro-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

.seo-intro h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.seo-intro p {
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto 1.5rem;
}

.seo-features {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.seo-feature {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.seo-feature strong {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.seo-feature span {
  font-weight: 600;
  color: var(--text-primary);
}

@media (max-width: 600px) {
  .seo-features {
    gap: 1rem;
  }
  .seo-feature {
    flex: 1 1 40%;
  }
}

/* Deal of Day */
.deal-of-day {
  max-width: 1600px;
  margin: 0 auto;
  padding: 2rem;
}

.deal-of-day-card {
  background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 100%);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 2rem;
  align-items: center;
  color: white;
}

.deal-of-day-badge {
  background: #fbbf24;
  color: #1e3a5f;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
}

.deal-of-day-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.deal-of-day-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.deal-of-day-image {
  width: 150px;
  height: 100px;
  background: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.deal-of-day-image img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

.deal-of-day-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.deal-of-day-subtitle {
  font-size: 0.9rem;
  opacity: 0.9;
}

.deal-of-day-writeup {
  font-size: 1rem;
  line-height: 1.6;
  opacity: 0.95;
}

.deal-of-day-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.deal-of-day-price {
  font-size: 2.5rem;
  font-weight: 700;
}

.deal-of-day-savings {
  background: rgba(255,255,255,0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
}

.deal-of-day-btn {
  background: #fbbf24;
  color: #1e3a5f;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  margin-top: 0.5rem;
  transition: transform 0.15s;
}

.deal-of-day-btn:hover {
  transform: scale(1.05);
}

/* Deal of day as clickable link */
.deal-of-day-link {
  text-decoration: none;
  color: white;
  display: grid;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.deal-of-day-link:visited {
  color: white;
}

.deal-of-day-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.deal-of-day-link:hover .deal-of-day-btn {
  transform: scale(1.05);
}

@media (max-width: 900px) {
  .deal-of-day-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .deal-of-day-badge {
    writing-mode: horizontal-tb;
    transform: none;
  }
  .deal-of-day-header {
    flex-direction: column;
  }
}

/* Main Layout */
.main-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
}

/* Sidebar Filters */
.sidebar {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  height: fit-content;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.sidebar-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-section {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.filter-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.filter-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-chip {
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s ease;
  background: var(--card-bg);
  color: var(--text-primary);
}

.filter-chip:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.filter-chip.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.filter-range {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.filter-range input[type="range"] {
  width: 100%;
  accent-color: var(--primary-color);
}

.filter-range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Size histogram */
.size-histogram {
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.histogram-bars {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 40px;
  gap: 2px;
  padding: 0 2px;
}

.histogram-bar-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  cursor: pointer;
}

.histogram-bar {
  width: 100%;
  background: var(--primary-color);
  border-radius: 2px 2px 0 0;
  min-height: 2px;
  opacity: 0.4;
  transition: opacity 0.15s, background 0.15s;
}

.histogram-bar-container:hover .histogram-bar {
  opacity: 0.7;
}

.histogram-bar-container.active .histogram-bar {
  opacity: 1;
  background: var(--primary-color);
}

.histogram-label {
  font-size: 0.5rem;
  color: var(--text-secondary);
  margin-top: 2px;
  white-space: nowrap;
  transition: color 0.15s, font-weight 0.15s;
}

.histogram-bar-container.active .histogram-label {
  color: var(--primary-color);
  font-weight: 600;
}

/* Size slider range */
.size-slider-container {
  position: relative;
  height: 30px;
  z-index: 2;
}

.size-slider-container input[type="range"] {
  position: absolute;
  width: 100%;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

.size-slider-container input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
}

.size-slider-container input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  pointer-events: all;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  margin-top: -6px;
  border: 2px solid white;
  box-shadow: var(--shadow-sm);
}

.size-slider-container input[type="range"]::-moz-range-thumb {
  pointer-events: all;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: var(--shadow-sm);
}

.size-range .filter-range-labels {
  margin-top: 0.5rem;
  font-weight: 500;
}

/* Grade slider */
.grade-range {
  gap: 0.75rem;
}

.grade-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
}

.grade-labels span {
  width: 20%;
  text-align: center;
}

.grade-current {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

/* Refresh rate slider */
.refresh-range {
  gap: 0.75rem;
}

.refresh-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
}

.refresh-labels span {
  width: 33.33%;
  text-align: center;
}

.refresh-labels span:first-child {
  text-align: left;
}

.refresh-labels span:last-child {
  text-align: right;
}

.refresh-current {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

.filter-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
}

.filter-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.clear-filters {
  width: 100%;
  padding: 0.75rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.clear-filters:hover {
  background: var(--neutral-bg);
  color: var(--text-primary);
}

/* TV Grid */
.tv-grid-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.tv-grid-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.tv-count {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.sort-select {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--card-bg);
  font-size: 0.875rem;
  cursor: pointer;
}

.tv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* TV Card */
.tv-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.tv-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--primary-color);
}

.tv-card-image {
  position: relative;
  aspect-ratio: 16/10;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.tv-card-image img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

/* Handwritten grade badge */
@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600;700&display=swap');

.deal-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.25rem 0.5rem;
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  min-width: 60px;
}

.deal-badge .grade {
  font-family: 'Caveat', cursive;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  transform: rotate(-3deg);
}

.deal-badge .grade-subtitle {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-top: 0.125rem;
}

/* Grade A - Green pen */
.deal-badge.verdict-a .grade {
  color: #15803d;
}
.deal-badge.verdict-a .grade-subtitle {
  color: #166534;
}

/* Grade B - Blue pen */
.deal-badge.verdict-b .grade {
  color: #1d4ed8;
}
.deal-badge.verdict-b .grade-subtitle {
  color: #1e40af;
}

/* Grade C - Black pen */
.deal-badge.verdict-c .grade {
  color: #374151;
}
.deal-badge.verdict-c .grade-subtitle {
  color: #4b5563;
}

/* Grade D - Red pen */
.deal-badge.verdict-d .grade {
  color: #dc2626;
}
.deal-badge.verdict-d .grade-subtitle {
  color: #b91c1c;
}

/* Grade F - Red pen (darker) */
.deal-badge.verdict-f .grade {
  color: #991b1b;
}
.deal-badge.verdict-f .grade-subtitle {
  color: #7f1d1d;
}

/* N/A - Limited data (gray) */
.deal-badge.verdict-na .grade {
  color: #6b7280;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1.5rem;
}
.deal-badge.verdict-na .grade-subtitle {
  color: #9ca3af;
}

.deal-score.na {
  color: var(--text-secondary);
  font-style: italic;
}

.panel-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.25rem 0.625rem;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 500;
}

.tv-card-content {
  padding: 1rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tv-card-brand {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.tv-card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
  line-height: 1.3;
}

.tv-card-model {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  opacity: 0.7;
}

.tv-card-specs {
  display: flex;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.tv-card-spec {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.quality-rating {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  color: #f59e0b;
  font-size: 0.875rem;
  letter-spacing: -1px;
}

.quality-label {
  font-size: 0.6rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.tv-card-description {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.tv-card-pricing {
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
}

.tv-card-price-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 0.5rem;
}

.tv-card-price-grade-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.tv-card-price-grade-row .price-section {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
}

.tv-card-price-grade-row .grade-section {
  flex-shrink: 0;
}

.tv-card-price-grade-row .deal-badge {
  position: relative;
  cursor: help;
}

.price-labeled {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.price-labeled.msrp {
  align-items: flex-end;
}

.price-labeled.projected {
  align-items: flex-end;
}

.price-label {
  font-size: 0.625rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  margin-bottom: 0.125rem;
}

.tv-card-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--success-color);
}

.tv-card-retail {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: line-through;
}

.projected-value {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.tv-card-retailer {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.tv-card-deal-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
}

.deal-score {
  font-weight: 600;
}

.deal-score.positive {
  color: var(--success-color);
}

.deal-score.negative {
  color: var(--danger-color);
}

/* Projected tooltip */
.projected-tooltip {
  position: relative;
  cursor: help;
  text-decoration: underline dotted;
  text-underline-offset: 2px;
}

.projected-tooltip .tooltip-content {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  color: white;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.5;
  width: 220px;
  text-align: center;
  z-index: 100;
  box-shadow: var(--shadow-lg);
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.projected-tooltip .tooltip-content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: #1e293b;
}

.projected-tooltip:hover .tooltip-content {
  visibility: visible;
  opacity: 1;
}

/* Deal of day tooltip adjustment */
.deal-of-day-savings .projected-tooltip .tooltip-content {
  bottom: auto;
  top: calc(100% + 8px);
}

.deal-of-day-savings .projected-tooltip .tooltip-content::after {
  top: auto;
  bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: #1e293b;
}

/* Removed - now using .projected-value */

/* Quick Score Badges */
.tv-card-quick-scores {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.quick-score {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 500;
  background: var(--neutral-bg);
  color: var(--text-secondary);
  cursor: help;
}

.quick-score .use-icon {
  font-size: 0.7rem;
}

.quick-score .use-label {
  font-weight: 600;
}

.quick-score.highlighted {
  background: #dcfce7;
  color: #166534;
  font-weight: 600;
}

.quick-score.highlighted .use-label {
  color: #166534;
}

/* Legacy quick-score colors (for backwards compatibility) */
.quick-score.gaming {
  background: #ede9fe;
  color: #6d28d9;
}

.quick-score.movies {
  background: #fef3c7;
  color: #b45309;
}

.quick-score.sports {
  background: #d1fae5;
  color: #047857;
}

.quick-score.pc {
  background: #e0e7ff;
  color: #4338ca;
}

/* Guide Promo Card */
.guide-promo-card {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 2px solid var(--primary-color);
  text-decoration: none;
}

.guide-promo-card:hover {
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
}

.guide-promo-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  height: 100%;
  min-height: 300px;
}

.guide-promo-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.guide-promo-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.guide-promo-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.guide-promo-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--primary-color);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
}

.guide-promo-card:hover .guide-promo-link {
  background: var(--primary-hover);
}

/* No Results */
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.no-results-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.no-results-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.no-results-text {
  color: var(--text-secondary);
}

/* Methodology Page */
.methodology-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.methodology-content h1 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.methodology-intro {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.methodology-section {
  margin-bottom: 2.5rem;
}

.methodology-section h2 {
  font-size: 1.375rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.methodology-section p {
  line-height: 1.7;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.methodology-section ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.methodology-pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

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

.pillar-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.pillar h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.pillar p {
  font-size: 0.875rem;
  margin-bottom: 0;
}

.grade-explanation {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.grade-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.grade-badge-example {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  min-width: 50px;
  flex-shrink: 0;
}

.grade-badge-example .grade {
  font-family: 'Caveat', cursive;
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
}

.grade-badge-example.verdict-a .grade { color: #15803d; }
.grade-badge-example.verdict-b .grade { color: #1d4ed8; }
.grade-badge-example.verdict-c .grade { color: #374151; }
.grade-badge-example.verdict-d .grade { color: #dc2626; }
.grade-badge-example.verdict-f .grade { color: #991b1b; }

.grade-row div strong {
  display: block;
  margin-bottom: 0.25rem;
}

.grade-row div p {
  margin: 0;
  font-size: 0.875rem;
}

.methodology-cta {
  text-align: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.btn-primary {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  transition: background 0.15s;
}

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

/* Footer */
.footer {
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
  padding: 2rem;
  margin-top: 3rem;
}

.footer-content {
  max-width: 1600px;
  margin: 0 auto;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-content a {
  color: var(--primary-color);
  text-decoration: none;
}

.footer-content a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 1024px) {
  .main-container {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .header-stats {
    display: none;
  }
}

@media (max-width: 640px) {
  .header {
    padding: 1rem;
  }

  .main-container {
    padding: 1rem;
  }

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

  .filter-options {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .filter-chip {
    flex-shrink: 0;
  }
}

/* Loading State */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ================================
   LAPTOP-SPECIFIC STYLES
   ================================ */

/* Use Case Presets Section */
.use-case-presets {
  max-width: 1600px;
  margin: 0 auto;
  padding: 2rem 2rem 1rem;
}

.presets-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.presets-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.presets-header p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.presets-grid {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.preset-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 140px;
}

.preset-btn:hover {
  border-color: var(--primary-color);
  background: #eff6ff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.preset-btn.active {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: white;
}

.preset-btn.active .preset-label {
  color: white;
}

.preset-btn.active .preset-desc {
  color: rgba(255, 255, 255, 0.8);
}

.preset-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.preset-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.preset-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* RAM slider */
.ram-range {
  gap: 0.75rem;
}

.ram-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  font-weight: 600;
}

.ram-labels span {
  width: 20%;
  text-align: center;
}

.ram-current {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

/* Benchmark sliders */
.benchmark-range {
  gap: 0.75rem;
}

.benchmark-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  font-weight: 600;
}

.benchmark-labels span {
  width: 20%;
  text-align: center;
}

.benchmark-labels span:first-child {
  text-align: left;
}

.benchmark-labels span:last-child {
  text-align: right;
}

.benchmark-labels-wide {
  display: flex;
  justify-content: space-between;
  font-size: 0.55rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.benchmark-labels-wide span {
  flex: 1;
  text-align: center;
  white-space: nowrap;
}

.benchmark-labels-wide span:first-child {
  text-align: left;
}

.benchmark-labels-wide span:last-child {
  text-align: right;
}

.benchmark-current {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

.benchmark-hint {
  font-size: 0.65rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 0.25rem;
  font-style: italic;
}

/* Benchmark badges on cards */
.benchmark-badges {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  margin-bottom: 0.25rem;
}

.benchmark-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 600;
  cursor: help;
  white-space: nowrap;
}

.benchmark-badge.cpu {
  background: #ede9fe;
  color: #6d28d9;
}

.benchmark-badge.gpu {
  background: #dcfce7;
  color: #166534;
}

.benchmark-badge.fps {
  background: #fef3c7;
  color: #b45309;
}

/* Responsive presets */
@media (max-width: 768px) {
  .presets-grid {
    gap: 0.75rem;
  }

  .preset-btn {
    min-width: 100px;
    padding: 1rem;
  }

  .preset-icon {
    font-size: 1.5rem;
  }

  .preset-label {
    font-size: 0.875rem;
  }

  .preset-desc {
    font-size: 0.65rem;
  }
}

@media (max-width: 480px) {
  .presets-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .preset-btn:last-child {
    grid-column: span 2;
    max-width: 200px;
    margin: 0 auto;
  }
}

/* ===== AI SEARCH SECTION ===== */
.ai-search-section {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 2.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
}

.ai-search-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.ai-search-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

/* Use Case Buttons */
.use-case-buttons {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.use-case-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1rem 1.25rem;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 100px;
}

.use-case-btn:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.use-case-btn.active {
  border-color: var(--primary-color);
  background: #eff6ff;
}

.use-case-icon {
  font-size: 1.5rem;
}

.use-case-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* AI Text Input */
.ai-input-wrapper {
  display: flex;
  gap: 0.5rem;
  max-width: 600px;
  margin: 0 auto 1rem;
}

.ai-search-input {
  flex: 1;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--card-bg);
  transition: border-color 0.2s;
}

.ai-search-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.ai-search-input::placeholder {
  color: var(--text-secondary);
}

.ai-search-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

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

.ai-search-btn:disabled {
  background: var(--neutral-color);
  cursor: not-allowed;
}

.ai-search-btn-icon {
  font-size: 1.1rem;
}

.ai-search-status {
  font-size: 0.875rem;
  color: var(--text-secondary);
  min-height: 1.5rem;
  margin-bottom: 0.5rem;
}

.ai-search-status.error {
  color: var(--danger-color);
}

.ai-search-status.success {
  color: var(--success-color);
}

/* Filters Toggle */
.filters-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: color 0.2s;
}

.filters-toggle:hover {
  color: var(--primary-color);
}

.filters-toggle-icon {
  font-size: 0.75rem;
  transition: transform 0.2s;
}

.filters-toggle.expanded .filters-toggle-icon {
  transform: rotate(180deg);
}

/* ===== HORIZONTAL FILTERS PANEL ===== */
.filters-panel {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.filters-collapsed {
  max-height: 0;
  padding: 0;
}

.filters-expanded {
  max-height: 600px;
  padding: 1.5rem 2rem;
}

.filters-panel-content {
  max-width: 1400px;
  margin: 0 auto;
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem 2rem;
}

.filters-grid .filter-section {
  margin-bottom: 0;
}

.filter-section-clear {
  display: flex;
  align-items: flex-end;
}

/* Full width main container when filters are horizontal */
.main-container-full {
  grid-template-columns: 1fr !important;
}

/* Hide old sidebar classes */
.sidebar-collapsed,
.sidebar-expanded {
  display: none;
}

@media (max-width: 1200px) {
  .filters-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .filters-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .filters-grid {
    grid-template-columns: 1fr;
  }

  .filters-expanded {
    padding: 1rem;
  }
}

/* Hidden sections */
.seo-intro-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.use-case-presets-hidden {
  display: none;
}

/* Mobile responsive for AI search */
@media (max-width: 640px) {
  .ai-search-section {
    padding: 1.5rem 1rem;
  }

  .ai-search-title {
    font-size: 1.375rem;
  }

  .use-case-buttons {
    gap: 0.5rem;
  }

  .use-case-btn {
    padding: 0.75rem 1rem;
    min-width: 70px;
  }

  .use-case-icon {
    font-size: 1.25rem;
  }

  .use-case-label {
    font-size: 0.75rem;
  }

  .ai-input-wrapper {
    flex-direction: column;
  }

  .ai-search-btn {
    justify-content: center;
  }
}