/* ===========================================
   BUSINESS IDEAS - MEMPHIS DARK THEME
   Blends dark aesthetic with Memphis design system
   =========================================== */

:root {
  /* Dark base palette */
  --bi-bg: #0f0f1a;
  --bi-bg-gradient: linear-gradient(180deg, #0f0f1a 0%, #141428 100%);
  --bi-surface: #1a1a2e;
  --bi-surface-elevated: #222240;
  --bi-surface-hover: #2a2a4a;
  --bi-border: #3a3a5c;
  --bi-border-subtle: #2a2a4a;
  --bi-border-light: #4a4a6c;

  /* Text colors */
  --bi-text-primary: #f5f5f7;
  --bi-text-secondary: #a0a0b8;
  --bi-text-muted: #6b6b8a;

  /* Memphis accents */
  --bi-teal: #4db8a8;
  --bi-teal-glow: rgba(77, 184, 168, 0.15);
  --bi-pink: #e8879f;
  --bi-pink-glow: rgba(232, 135, 159, 0.15);
  --bi-coral: #e8a07a;
  --bi-coral-glow: rgba(232, 160, 122, 0.15);
  --bi-purple: #9b7cc4;
  --bi-purple-glow: rgba(155, 124, 196, 0.15);
  --bi-yellow: #f5d76e;
  --bi-yellow-glow: rgba(245, 215, 110, 0.15);
  --bi-blue: #5b8def;
  --bi-blue-glow: rgba(91, 141, 239, 0.15);

  /* Shadows for dark theme */
  --bi-shadow: 4px 4px 0 rgba(0, 0, 0, 0.4);
  --bi-shadow-sm: 2px 2px 0 rgba(0, 0, 0, 0.3);
  --bi-shadow-hover: 6px 6px 0 rgba(0, 0, 0, 0.5);

  /* Radius */
  --bi-radius: 16px;
  --bi-radius-sm: 10px;
  --bi-radius-xs: 6px;
}

/* ===========================================
   BASE OVERRIDES
   =========================================== */

body.bi-dark-theme {
  background: var(--bi-bg-gradient);
  min-height: 100vh;
  scroll-behavior: smooth;
}

body.bi-dark-theme .memphis-dots {
  opacity: 0.015;
}

/* Override footer for dark theme */
body.bi-dark-theme footer {
  background: var(--bi-surface) !important;
  border-top: 3px solid var(--bi-border) !important;
}

body.bi-dark-theme footer,
body.bi-dark-theme footer * {
  color: var(--bi-text-secondary) !important;
}

body.bi-dark-theme footer a:hover {
  color: var(--bi-teal) !important;
}

/* ===========================================
   PAGE CONTAINER
   =========================================== */

.bi-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

@media (max-width: 640px) {
  .bi-page {
    padding: 20px 16px 60px;
  }
}

/* ===========================================
   TWO COLUMN LAYOUT
   =========================================== */

.bi-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}

.bi-main {
  min-width: 0;
}

.bi-sidebar {
  align-self: stretch;
  margin: 0;
  padding: 0;
}

.bi-sidebar-sticky {
  position: sticky;
  top: 88px; /* navbar height (64px) + padding (24px) */
}

@media (max-width: 1024px) {
  .bi-layout {
    grid-template-columns: 1fr;
  }

  .bi-sidebar {
    display: none;
  }
}

/* ===========================================
   NEWSLETTER WIDGET (Sidebar)
   =========================================== */

.bi-newsletter-widget {
  background: var(--bi-surface);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  padding: 24px;
  box-shadow: var(--bi-shadow);
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.bi-newsletter-widget::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--bi-purple) 0%, var(--bi-teal) 100%);
}

.bi-newsletter-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bi-purple);
  font-weight: 700;
  margin-bottom: 8px;
}

.bi-newsletter-heading {
  font-family: 'Poppins', sans-serif;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--bi-text-primary);
  line-height: 1.3;
}

.bi-newsletter-desc {
  font-size: 13px;
  color: var(--bi-text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.bi-newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bi-newsletter-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bi-bg);
  border: 2px solid var(--bi-border);
  border-radius: 8px;
  color: var(--bi-text-primary);
  font-size: 14px;
  transition: border-color 0.2s;
}

.bi-newsletter-input::placeholder {
  color: var(--bi-text-muted);
}

.bi-newsletter-input:focus {
  outline: none;
  border-color: var(--bi-purple);
}

.bi-newsletter-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 20px;
  background: var(--bi-purple);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.bi-newsletter-button:hover:not(:disabled) {
  background: #a98dd1;
  transform: translateY(-1px);
}

.bi-newsletter-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.bi-newsletter-button-loading {
  display: inline-flex;
  align-items: center;
}

.bi-spinner {
  animation: bi-spin 1s linear infinite;
}

@keyframes bi-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.bi-newsletter-success {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: rgba(77, 184, 168, 0.15);
  border: 2px solid var(--bi-teal);
  border-radius: 8px;
  color: var(--bi-teal);
  font-size: 14px;
  font-weight: 600;
}

.bi-newsletter-success svg {
  flex-shrink: 0;
}

.bi-newsletter-error {
  padding: 12px;
  background: rgba(232, 135, 159, 0.15);
  border: 2px solid var(--bi-pink);
  border-radius: 8px;
  color: var(--bi-pink);
  font-size: 13px;
  margin-top: 10px;
}

.bi-newsletter-note {
  font-size: 11px;
  color: var(--bi-text-muted);
  margin-top: 12px;
  text-align: center;
}

/* ===========================================
   CTA WIDGET (Sidebar)
   =========================================== */

.bi-cta-widget {
  background: linear-gradient(135deg, var(--bi-purple-glow) 0%, var(--bi-teal-glow) 100%);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  padding: 24px;
  box-shadow: var(--bi-shadow);
  margin: 0;
}

.bi-cta-widget .bi-cta-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bi-teal);
  font-weight: 700;
  margin-bottom: 8px;
}

.bi-cta-widget .bi-cta-heading {
  font-family: 'Poppins', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--bi-text-primary);
  line-height: 1.3;
}

.bi-cta-widget .bi-cta-desc {
  font-size: 13px;
  color: var(--bi-text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}

.bi-cta-widget .bi-cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 20px;
  background: var(--bi-teal);
  color: var(--bi-bg);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s;
  border: 2px solid var(--bi-bg);
}

.bi-cta-widget .bi-cta-button:hover {
  background: #5cc9b9;
  transform: translateY(-2px);
  box-shadow: var(--bi-shadow);
}

.bi-cta-social {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--bi-text-muted);
  margin-bottom: 16px;
}

.bi-cta-social svg {
  flex-shrink: 0;
  color: var(--bi-teal);
}

/* ===========================================
   PREVIEW BANNER
   =========================================== */

.bi-preview-banner {
  background: var(--bi-yellow-glow);
  border: 2px solid var(--bi-yellow);
  border-radius: var(--bi-radius-sm);
  padding: 12px 20px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.bi-preview-banner svg {
  flex-shrink: 0;
  color: var(--bi-yellow);
}

.bi-preview-banner p {
  font-size: 14px;
  color: var(--bi-yellow);
  font-weight: 500;
}

/* ===========================================
   BREADCRUMB
   =========================================== */

.bi-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--bi-text-muted);
  margin-bottom: 24px;
}

.bi-breadcrumb a {
  color: var(--bi-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.bi-breadcrumb .sep {
  opacity: 0.4;
}

/* ===========================================
   CARDS
   =========================================== */

.bi-card {
  background: var(--bi-surface);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  box-shadow: var(--bi-shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.bi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--bi-shadow-hover);
}

.bi-card-static {
  background: var(--bi-surface);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  box-shadow: var(--bi-shadow);
}

/* ===========================================
   SECTION HEADERS
   =========================================== */

.bi-section {
  margin-bottom: 48px;
}

.bi-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.bi-section-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--bi-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 2px solid;
}

.bi-section-icon--teal {
  background: var(--bi-teal-glow);
  border-color: rgba(77, 184, 168, 0.3);
  color: var(--bi-teal);
}

.bi-section-icon--blue {
  background: var(--bi-blue-glow);
  border-color: rgba(91, 141, 239, 0.3);
  color: var(--bi-blue);
}

.bi-section-icon--coral {
  background: var(--bi-coral-glow);
  border-color: rgba(232, 160, 122, 0.3);
  color: var(--bi-coral);
}

.bi-section-icon--purple {
  background: var(--bi-purple-glow);
  border-color: rgba(155, 124, 196, 0.3);
  color: var(--bi-purple);
}

.bi-section-icon--pink {
  background: var(--bi-pink-glow);
  border-color: rgba(232, 135, 159, 0.3);
  color: var(--bi-pink);
}

.bi-section-title {
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--bi-text-primary);
  letter-spacing: -0.01em;
}

.bi-section-subtitle {
  font-size: 13px;
  color: var(--bi-text-muted);
  margin-top: 2px;
}

/* ===========================================
   HERO SECTION
   =========================================== */

.bi-hero {
  margin-bottom: 48px;
}

.bi-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.bi-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 2px solid;
}

.bi-badge--category {
  background: var(--bi-blue-glow);
  color: var(--bi-blue);
  border-color: rgba(91, 141, 239, 0.3);
}

.bi-badge--topic {
  background: var(--bi-surface-elevated);
  color: var(--bi-text-secondary);
  border-color: var(--bi-border);
}

.bi-badge--teal {
  background: var(--bi-teal-glow);
  color: var(--bi-teal);
  border-color: rgba(77, 184, 168, 0.3);
}

.bi-hero-title {
  font-family: 'Poppins', sans-serif;
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  color: var(--bi-text-primary);
}

@media (max-width: 640px) {
  .bi-hero-title {
    font-size: 28px;
  }
}

.bi-hero-description {
  font-size: 17px;
  line-height: 1.7;
  color: var(--bi-text-secondary);
  max-width: 800px;
  margin-bottom: 24px;
}

.bi-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 20px;
}

.bi-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bi-meta-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bi-text-muted);
  font-weight: 600;
}

.bi-meta-value {
  font-size: 14px;
  color: var(--bi-text-secondary);
  font-weight: 500;
}

/* Key Features */
.bi-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.bi-feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bi-surface-elevated);
  border: 2px solid var(--bi-border);
  border-radius: var(--bi-radius-xs);
  font-size: 13px;
  color: var(--bi-text-secondary);
}

.bi-feature-tag svg {
  color: var(--bi-teal);
}

/* ===========================================
   TREND ANALYSIS
   =========================================== */

.bi-trend-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.bi-trend-tab {
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  background: var(--bi-surface-elevated);
  color: var(--bi-text-secondary);
  border: 2px solid var(--bi-border);
  cursor: pointer;
  transition: all 0.2s;
}

.bi-trend-tab:hover {
  border-color: var(--bi-border-light);
  color: var(--bi-text-primary);
}

.bi-trend-tab.active {
  background: var(--bi-teal-glow);
  color: var(--bi-teal);
  border-color: rgba(77, 184, 168, 0.4);
}

.bi-trend-chart-container {
  position: relative;
  height: 300px;
  margin-bottom: 20px;
}

@media (max-width: 640px) {
  .bi-trend-chart-container {
    height: 220px;
  }
}

.bi-trend-averages {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.bi-trend-avg-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--bi-surface-elevated);
  border-radius: var(--bi-radius-sm);
  border: 2px solid var(--bi-border);
}

.bi-trend-avg-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.bi-trend-avg-label {
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--bi-text-secondary);
}

.bi-trend-avg-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--bi-text-primary);
  margin-left: auto;
}

/* Related Queries */
.bi-related-queries {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 2px solid var(--bi-border);
}

.bi-related-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bi-text-muted);
  font-weight: 600;
  margin-bottom: 12px;
}

.bi-query-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.bi-query-tag {
  padding: 6px 12px;
  background: var(--bi-surface-elevated);
  border-radius: 100px;
  font-size: 12px;
  color: var(--bi-text-secondary);
  border: 2px solid var(--bi-border);
  font-family: 'JetBrains Mono', monospace;
}

.bi-query-tag--rising {
  background: var(--bi-coral-glow);
  color: var(--bi-coral);
  border-color: rgba(232, 160, 122, 0.3);
}

.bi-query-tag .rising-label {
  font-size: 10px;
  opacity: 0.8;
  margin-left: 4px;
}

/* ===========================================
   COMPETITORS
   =========================================== */

.bi-competitors-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bi-competitor-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 20px 24px;
  background: var(--bi-surface);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  transition: all 0.2s;
}

.bi-competitor-card:hover {
  border-color: var(--bi-border-light);
  transform: translateX(4px);
}

@media (max-width: 640px) {
  .bi-competitor-card {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.bi-comp-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.bi-comp-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bi-comp-favicon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--bi-surface-elevated);
  flex-shrink: 0;
}

.bi-comp-name {
  font-weight: 700;
  font-size: 16px;
  color: var(--bi-text-primary);
}

.bi-comp-url {
  font-size: 12px;
  color: var(--bi-text-muted);
  font-family: 'JetBrains Mono', monospace;
  text-decoration: none;
  transition: color 0.2s;
}

.bi-comp-url:hover {
  color: var(--bi-teal);
}

.bi-comp-desc {
  font-size: 14px;
  color: var(--bi-text-secondary);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.bi-comp-stats {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .bi-comp-stats {
    flex-direction: row;
    align-items: center;
    gap: 20px;
  }
}

.bi-comp-stat-value {
  font-size: 20px;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  color: var(--bi-text-primary);
}

.bi-comp-stat-label {
  font-size: 11px;
  color: var(--bi-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bi-comp-keywords {
  font-size: 12px;
  color: var(--bi-text-muted);
  font-family: 'JetBrains Mono', monospace;
}

/* ===========================================
   KEYWORDS TABLE
   =========================================== */

.bi-keywords-wrapper {
  overflow-x: auto;
}

.bi-keywords-table {
  width: 100%;
  border-collapse: collapse;
}

.bi-keywords-table thead th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bi-text-muted);
  font-weight: 600;
  padding: 14px 16px;
  text-align: left;
  border-bottom: 2px solid var(--bi-border);
  background: var(--bi-surface-elevated);
}

.bi-keywords-table thead th:nth-child(2),
.bi-keywords-table thead th:nth-child(3),
.bi-keywords-table thead th:nth-child(4) {
  text-align: right;
}

.bi-keywords-table thead th:last-child {
  text-align: center;
}

.bi-keywords-table tbody td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--bi-border-subtle);
  vertical-align: middle;
}

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

.bi-keywords-table tbody tr {
  transition: background 0.15s;
}

.bi-keywords-table tbody tr:hover {
  background: var(--bi-surface-elevated);
}

.bi-kw-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--bi-text-primary);
}

.bi-kw-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  text-align: right;
  color: var(--bi-text-secondary);
}

.bi-kw-vol {
  color: var(--bi-text-primary);
  font-weight: 700;
}

.bi-kw-sparkline {
  width: 80px;
  height: 28px;
}

.bi-comp-bar-container {
  width: 60px;
  height: 6px;
  background: var(--bi-surface-elevated);
  border-radius: 3px;
  overflow: hidden;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}

.bi-comp-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s;
}

.bi-comp-bar--low {
  background: var(--bi-teal);
}

.bi-comp-bar--med {
  background: var(--bi-yellow);
}

.bi-comp-bar--high {
  background: var(--bi-coral);
}

/* ===========================================
   TECH STACK
   =========================================== */

.bi-tech-summary {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--bi-text-secondary);
  padding: 16px 20px;
  background: var(--bi-surface-elevated);
  border-radius: var(--bi-radius-sm);
  border: 2px solid var(--bi-border);
  margin-bottom: 20px;
  line-height: 1.7;
}

.bi-tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

@media (max-width: 640px) {
  .bi-tech-grid {
    grid-template-columns: 1fr;
  }
}

.bi-tech-card {
  padding: 18px 20px;
  background: var(--bi-surface);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  transition: all 0.2s;
}

.bi-tech-card:hover {
  border-color: var(--bi-border-light);
  transform: translateY(-2px);
}

.bi-tech-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 12px;
}

.bi-tech-card-name {
  font-weight: 700;
  font-size: 15px;
  color: var(--bi-text-primary);
}

.bi-tech-card-category {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 100px;
  font-weight: 700;
  flex-shrink: 0;
}

.bi-cat-ai {
  background: var(--bi-purple-glow);
  color: var(--bi-purple);
}

.bi-cat-payments {
  background: var(--bi-teal-glow);
  color: var(--bi-teal);
}

.bi-cat-database {
  background: var(--bi-blue-glow);
  color: var(--bi-blue);
}

.bi-cat-auth {
  background: var(--bi-pink-glow);
  color: var(--bi-pink);
}

.bi-cat-storage {
  background: var(--bi-coral-glow);
  color: var(--bi-coral);
}

.bi-cat-hosting {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.bi-cat-other {
  background: var(--bi-surface-elevated);
  color: var(--bi-text-secondary);
}

.bi-tech-card-purpose {
  font-size: 13px;
  color: var(--bi-text-secondary);
  line-height: 1.6;
}

.bi-tech-disclaimer {
  font-size: 13px;
  color: var(--bi-text-muted);
  padding: 14px 18px;
  background: var(--bi-surface-elevated);
  border-radius: var(--bi-radius-sm);
  border: 2px solid var(--bi-border);
  border-left: 4px solid var(--bi-border-light);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.bi-tech-disclaimer svg {
  flex-shrink: 0;
  opacity: 0.6;
  margin-top: 2px;
}

/* ===========================================
   SELF HOSTING COURSE CTA
   =========================================== */

.bi-selfhost-cta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  padding: 28px 32px;
  background: linear-gradient(135deg, var(--bi-coral-glow) 0%, var(--bi-pink-glow) 100%);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  box-shadow: var(--bi-shadow);
  align-items: center;
}

.bi-selfhost-savings {
  text-align: center;
  padding: 24px 28px;
  background: var(--bi-surface);
  border-radius: var(--bi-radius-sm);
  border: 2px solid var(--bi-coral);
  min-width: 160px;
}

.bi-selfhost-savings-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bi-text-muted);
  font-weight: 600;
  margin-bottom: 8px;
}

.bi-selfhost-savings-amount {
  font-family: 'JetBrains Mono', monospace;
  font-size: 48px;
  font-weight: 800;
  color: var(--bi-coral);
  line-height: 1;
}

.bi-selfhost-savings-amount span {
  font-size: 32px;
  opacity: 0.8;
}

.bi-selfhost-savings-note {
  font-size: 11px;
  color: var(--bi-text-muted);
  margin-top: 8px;
}

.bi-selfhost-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bi-selfhost-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: var(--bi-coral);
  color: var(--bi-bg);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  width: fit-content;
}

.bi-selfhost-heading {
  font-family: 'Poppins', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--bi-text-primary);
  line-height: 1.3;
  margin: 0;
}

.bi-selfhost-desc {
  font-size: 14px;
  color: var(--bi-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.bi-selfhost-social {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--bi-text-muted);
}

.bi-selfhost-social svg {
  color: var(--bi-coral);
  flex-shrink: 0;
}

.bi-selfhost-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--bi-coral);
  color: var(--bi-bg);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s;
  border: 2px solid var(--bi-bg);
  width: fit-content;
  box-shadow: var(--bi-shadow-sm);
}

.bi-selfhost-button:hover {
  background: #f0b08a;
  transform: translateY(-2px);
  box-shadow: var(--bi-shadow);
}

@media (max-width: 768px) {
  .bi-selfhost-cta {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }

  .bi-selfhost-savings {
    padding: 20px;
  }

  .bi-selfhost-savings-amount {
    font-size: 40px;
  }

  .bi-selfhost-heading {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .bi-selfhost-cta {
    text-align: center;
  }

  .bi-selfhost-badge {
    margin: 0 auto;
  }

  .bi-selfhost-social {
    justify-content: center;
    flex-wrap: wrap;
    text-align: center;
  }

  .bi-selfhost-button {
    width: 100%;
    justify-content: center;
  }
}

/* ===========================================
   CTA BOX
   =========================================== */

.bi-cta-box {
  background: linear-gradient(135deg, var(--bi-blue-glow) 0%, var(--bi-purple-glow) 100%);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  padding: 32px 28px;
  text-align: center;
  margin-top: 24px;
}

.bi-cta-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bi-blue);
  font-weight: 700;
  margin-bottom: 10px;
}

.bi-cta-heading {
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--bi-text-primary);
}

.bi-cta-desc {
  font-size: 14px;
  color: var(--bi-text-secondary);
  margin-bottom: 20px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.bi-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--bi-teal);
  color: var(--bi-bg);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s;
  border: 3px solid var(--bi-bg);
  box-shadow: var(--bi-shadow-sm);
}

.bi-cta-button:hover {
  background: #5cc9b9;
  transform: translateY(-2px);
  box-shadow: var(--bi-shadow);
}

/* ===========================================
   RELATED IDEAS
   =========================================== */

.bi-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.bi-related-card {
  padding: 20px;
  background: var(--bi-surface);
  border: 3px solid var(--bi-border);
  border-radius: var(--bi-radius);
  transition: all 0.2s;
  text-decoration: none;
  display: block;
}

.bi-related-card:hover {
  border-color: var(--bi-teal);
  transform: translateY(-4px);
  box-shadow: var(--bi-shadow-hover);
}

.bi-related-card-title {
  font-weight: 700;
  font-size: 15px;
  color: var(--bi-text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.bi-related-card-desc {
  font-size: 13px;
  color: var(--bi-text-secondary);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.bi-related-card-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.bi-related-card-topic {
  font-size: 11px;
  padding: 4px 8px;
  background: var(--bi-surface-elevated);
  border-radius: 100px;
  color: var(--bi-text-muted);
}

/* ===========================================
   ANIMATIONS
   =========================================== */

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.bi-section {
  animation: fadeUp 0.5s ease-out both;
}

.bi-section:nth-child(1) { animation-delay: 0s; }
.bi-section:nth-child(2) { animation-delay: 0.05s; }
.bi-section:nth-child(3) { animation-delay: 0.1s; }
.bi-section:nth-child(4) { animation-delay: 0.15s; }
.bi-section:nth-child(5) { animation-delay: 0.2s; }
.bi-section:nth-child(6) { animation-delay: 0.25s; }
.bi-section:nth-child(7) { animation-delay: 0.3s; }

/* ===========================================
   UTILITY CLASSES
   =========================================== */

.bi-mono {
  font-family: 'JetBrains Mono', monospace;
}

.bi-text-teal { color: var(--bi-teal); }
.bi-text-pink { color: var(--bi-pink); }
.bi-text-coral { color: var(--bi-coral); }
.bi-text-purple { color: var(--bi-purple); }
.bi-text-yellow { color: var(--bi-yellow); }
.bi-text-blue { color: var(--bi-blue); }

/* ===========================================
   AI VIABILITY SCORE SECTION
   =========================================== */

.bi-score-container {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 24px;
  background: var(--bi-surface-elevated);
  border-radius: var(--bi-radius-sm);
  border: 2px solid var(--bi-border-subtle);
}

@media (max-width: 640px) {
  .bi-score-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
  }
}

.bi-score-gauge {
  position: relative;
  width: 120px;
  height: 120px;
  flex-shrink: 0;
}

.bi-score-ring {
  width: 100%;
  height: 100%;
}

.bi-score-progress {
  transition: stroke-dasharray 1s ease-out;
}

.bi-score-progress.bi-score--high {
  stroke: #10b981;
}

.bi-score-progress.bi-score--medium {
  stroke: #f59e0b;
}

.bi-score-progress.bi-score--low {
  stroke: #ef4444;
}

.bi-score-value {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'JetBrains Mono', monospace;
  font-size: 32px;
  font-weight: 700;
}

.bi-score-value.bi-score--high {
  color: #10b981;
}

.bi-score-value.bi-score--medium {
  color: #f59e0b;
}

.bi-score-value.bi-score--low {
  color: #ef4444;
}

.bi-score-content {
  flex: 1;
}

.bi-score-explanation {
  font-size: 15px;
  line-height: 1.7;
  color: var(--bi-text-secondary);
  margin-bottom: 20px;
}

.bi-score-badges {
  margin-bottom: 16px;
}

.bi-score-badges:last-child {
  margin-bottom: 0;
}

.bi-score-badges-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--bi-text-muted);
  margin-bottom: 8px;
}

.bi-score-badges-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 640px) {
  .bi-score-badges-list {
    justify-content: center;
  }
}

.bi-score-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 100px;
  border: 1px solid;
}

.bi-score-badge--strength {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.bi-score-badge--concern {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.bi-score-legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--bi-border-subtle);
}

@media (max-width: 640px) {
  .bi-score-legend {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
}

.bi-score-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--bi-text-muted);
}

.bi-score-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.bi-score-legend-dot.bi-score--high {
  background: #10b981;
}

.bi-score-legend-dot.bi-score--medium {
  background: #f59e0b;
}

.bi-score-legend-dot.bi-score--low {
  background: #ef4444;
}

/* ===========================================
   COMPACT AI SCORE BADGE (Hero)
   =========================================== */

.bi-score-compact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 100px;
  border: 2px solid;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.bi-score-compact:hover {
  transform: translateY(-2px);
}

.bi-score-compact--high {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  color: #10b981;
}

.bi-score-compact--high:hover {
  background: rgba(16, 185, 129, 0.25);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.bi-score-compact--medium {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.4);
  color: #f59e0b;
}

.bi-score-compact--medium:hover {
  background: rgba(245, 158, 11, 0.25);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.bi-score-compact--low {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.4);
  color: #ef4444;
}

.bi-score-compact--low:hover {
  background: rgba(239, 68, 68, 0.25);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.bi-score-compact-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
}

.bi-score-compact-label {
  opacity: 0.9;
}

.bi-score-compact svg {
  opacity: 0.7;
  animation: bounce-down 2s ease-in-out infinite;
}

@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(3px); }
}


/* ===========================================
   HERO SECTION ENHANCEMENTS
   =========================================== */

.bi-hero-primary-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.bi-hero-topic-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.bi-badge--lg {
  padding: 8px 18px;
  font-size: 13px;
}

.bi-score-compact--lg {
  padding: 8px 16px;
  font-size: 14px;
}

.bi-score-compact--lg .bi-score-compact-value {
  font-size: 18px;
}

/* Features Section Enhancement */
.bi-features {
  margin-top: 24px;
  padding: 20px;
  background: var(--bi-surface-elevated);
  border: 2px solid var(--bi-border);
  border-radius: var(--bi-radius-sm);
}

.bi-features-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bi-text-muted);
  font-weight: 600;
  margin-bottom: 12px;
}

.bi-features-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.bi-feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bi-surface);
  border: 2px solid var(--bi-border);
  border-radius: var(--bi-radius-xs);
  font-size: 13px;
  color: var(--bi-text-secondary);
  transition: all 0.2s;
}

.bi-feature-tag:hover {
  border-color: var(--bi-teal);
  background: var(--bi-teal-glow);
}

.bi-feature-tag svg {
  color: var(--bi-teal);
  flex-shrink: 0;
}

/* Hero Meta Enhancement */
.bi-hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  padding: 20px;
  background: var(--bi-surface);
  border: 2px solid var(--bi-border);
  border-radius: var(--bi-radius-sm);
  margin-top: 24px;
}

@media (max-width: 640px) {
  .bi-hero-meta {
    grid-template-columns: 1fr 1fr;
  }
}


/* ===========================================
   MOBILE EXPERIENCE ENHANCEMENTS
   =========================================== */

/* Larger touch targets */
@media (max-width: 768px) {
  .bi-trend-tab,
  .bi-badge,
  .bi-feature-tag,
  .bi-query-tag {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .bi-cta-button,
  .bi-selfhost-button {
    min-height: 48px;
    padding: 14px 24px;
  }

  /* Improved spacing on small screens */
  .bi-section {
    margin-bottom: 40px;
  }

  .bi-section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .bi-section-icon {
    width: 48px;
    height: 48px;
  }

  /* Better readability */
  .bi-hero-description {
    font-size: 16px;
    line-height: 1.75;
  }

  .bi-comp-desc,
  .bi-tech-card-purpose {
    font-size: 14px;
    line-height: 1.6;
  }
}


/* ===========================================
   ACCESSIBILITY ENHANCEMENTS
   =========================================== */

/* Focus states for all interactive elements */
.bi-score-compact:focus-visible,
.bi-trend-tab:focus-visible,
.bi-cta-button:focus-visible,
.bi-selfhost-button:focus-visible,
.bi-related-card:focus-visible,
.bi-breadcrumb a:focus-visible {
  outline: 3px solid var(--bi-teal);
  outline-offset: 2px;
}

/* Smooth transitions for micro-interactions */
.bi-card,
.bi-competitor-card,
.bi-tech-card,
.bi-related-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .bi-section,
  .bi-card,
  .bi-competitor-card,
  .bi-tech-card {
    animation: none;
    transition: none;
  }

  .bi-score-compact svg {
    animation: none;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}


/* ===========================================
   VISUAL POLISH & SPACING
   =========================================== */

/* Consistent section spacing */
.bi-section {
  margin-bottom: 56px;
}

.bi-section:last-child {
  margin-bottom: 32px;
}

/* Section title sizing hierarchy */
.bi-section-title {
  font-size: 24px;
  line-height: 1.3;
}

@media (max-width: 640px) {
  .bi-section-title {
    font-size: 20px;
  }
}

/* Card content spacing */
.bi-card-static {
  padding: 28px;
}

@media (max-width: 640px) {
  .bi-card-static {
    padding: 20px;
  }
}

/* Improved typography scale */
.bi-hero-title {
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.15;
  margin-bottom: 20px;
}