/* ==========================================================================
   VehicleHistoryData.com — Main Stylesheet
   Premium US B2B Vehicle Intelligence & API Platform
   ========================================================================== */

@import url('./variables.css');

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

html {
  font-family: var(--font-family-base);
  font-size: 16px;
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--color-bg-primary);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.15), transparent 70%),
    radial-gradient(circle at 100% 40%, rgba(79, 70, 229, 0.05), transparent 40%);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--color-accent-light);
  outline-offset: 3px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-narrow {
  max-width: var(--max-width-narrow);
}

.container-reading {
  max-width: var(--max-width-reading);
}

.section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
  position: relative;
}

.section-sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section-bordered {
  border-top: 1px solid var(--color-border);
}

.section-alt {
  background-color: var(--color-bg-secondary);
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-6);
}

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-4);
  letter-spacing: -0.015em;
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-3);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

p.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: #cbd5e1;
  max-width: 48rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-light);
  background-color: var(--color-accent-subtle);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-4);
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent-light);
  box-shadow: 0 0 8px var(--color-accent-light);
}

/* Buttons & CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #1e40af 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #172554 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg-card-hover);
  border-color: #475569;
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-subtle {
  color: var(--color-accent-light);
  background: transparent;
  padding: 0.5rem 0.75rem;
}

.btn-subtle:hover {
  color: #ffffff;
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: var(--font-size-base);
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
}

.btn-block {
  width: 100%;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.badge-success {
  background-color: var(--color-success-bg);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.25);
}

.badge-warning {
  background-color: var(--color-warning-bg);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.25);
}

.badge-blue {
  background-color: var(--color-accent-subtle);
  color: var(--color-accent-light);
  border-color: rgba(59, 130, 246, 0.25);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: var(--z-header);
  transition: background-color var(--transition-base);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-bold);
  font-size: 1.15rem;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.site-logo svg {
  width: 32px;
  height: 32px;
}

.site-logo span.accent {
  color: var(--color-accent-light);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  padding: 0.5rem 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-dropdown-wrapper {
  position: relative;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  width: 280px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-fast);
  pointer-events: none;
  z-index: var(--z-modal);
}

.nav-dropdown-wide {
  width: 340px;
}

.nav-dropdown-wrapper:hover .nav-dropdown,
.nav-dropdown-wrapper:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown-item {
  display: block;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--color-bg-elevated);
}

.dropdown-item-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.dropdown-item-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: 1.35;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.mobile-nav-toggle {
  display: none;
  padding: var(--space-2);
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
}

/* Mobile Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--color-bg-primary);
  border-left: 1px solid var(--color-border);
  padding: var(--space-6);
  z-index: var(--z-mobile-drawer);
  transition: right var(--transition-base);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-nav-drawer.open {
  right: 0;
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: calc(var(--z-mobile-drawer) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.mobile-nav-heading {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

.mobile-nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  padding: 0.5rem 0;
}

/* Sticky Mobile Bottom CTA Bar */
.sticky-mobile-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  padding: 0.75rem var(--space-4);
  z-index: var(--z-sticky);
  display: none;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.3);
}

.sticky-mobile-cta .btn {
  width: 100%;
}

/* Cards & Surfaces */
.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 12px 28px -6px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}

.card-sm {
  padding: var(--space-6);
}

.card-highlight {
  border-color: rgba(59, 130, 246, 0.5);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.08) 0%, var(--color-bg-card) 100%);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-subtle);
  border: 1px solid rgba(59, 130, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-light);
  margin-bottom: var(--space-5);
}

/* Grid Systems */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* Hero Section */
.hero {
  padding-top: calc(var(--space-20) + 1rem);
  padding-bottom: var(--space-20);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-12);
  align-items: center;
}

.hero-content {
  max-width: 640px;
}

.hero-visual {
  position: relative;
}

/* Interactive VIN Demo Visual Component */
.vin-demo-box {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl), 0 0 35px -5px rgba(37, 99, 235, 0.2);
  overflow: hidden;
}

.vin-demo-header {
  background-color: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  padding: 0.85rem var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.demo-status-pill {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  color: #cbd5e1;
  text-transform: uppercase;
}

.demo-status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.vin-demo-body {
  padding: var(--space-6);
}

.vin-input-bar {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  position: relative;
}

.vin-input-field {
  flex: 1;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  color: #ffffff;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.vin-input-field:focus {
  border-color: var(--color-accent-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
  outline: none;
}

.preset-vins {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.preset-chip {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: #94a3b8;
  font-family: var(--font-family-mono);
  font-size: 0.7rem;
  transition: all var(--transition-fast);
}

.preset-chip:hover {
  color: #ffffff;
  border-color: var(--color-accent);
}

/* Demo Result Tabs */
.demo-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
  gap: var(--space-2);
}

.demo-tab-btn {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: 0.5rem 0.75rem;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.demo-tab-btn.active {
  color: #ffffff;
  border-bottom-color: var(--color-accent-light);
}

.demo-panel {
  display: none;
}

.demo-panel.active {
  display: block;
}

.demo-vehicle-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-subtle);
}

.demo-vehicle-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
}

.demo-vehicle-vin {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.demo-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.demo-spec-item {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
}

.demo-spec-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.demo-spec-value {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: #f1f5f9;
}

.demo-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.demo-timeline-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: 0.5rem 0.75rem;
  background: var(--color-bg-primary);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-accent-light);
}

.demo-timeline-item.warning {
  border-left-color: var(--color-warning);
}

.demo-timeline-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  min-width: 75px;
}

.demo-timeline-desc {
  font-size: var(--font-size-xs);
  color: #e2e8f0;
}

.demo-disclaimer {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-subtle);
}

/* API Explorer Visual Component */
.api-explorer {
  background-color: #0b1120;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.api-explorer-header {
  background-color: #0f172a;
  border-bottom: 1px solid var(--color-border);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lang-tabs {
  display: flex;
  gap: var(--space-2);
}

.lang-tab {
  font-size: var(--font-size-xs);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
}

.lang-tab.active {
  background-color: var(--color-bg-elevated);
  color: #ffffff;
}

.copy-btn {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.copy-btn:hover {
  color: #ffffff;
}

.code-container {
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-family-mono);
  font-size: 0.825rem;
  line-height: 1.6;
  color: #e2e8f0;
}

.code-token-keyword { color: #f472b6; }
.code-token-string { color: #a7f3d0; }
.code-token-number { color: #fde047; }
.code-token-comment { color: #64748b; font-style: italic; }
.code-token-key { color: #93c5fd; }
.code-token-function { color: #c084fc; }

/* Architecture Visualizer */
.architecture-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-8);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  margin: var(--space-10) 0;
  overflow-x: auto;
}

.arch-node {
  flex: 1;
  min-width: 140px;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: center;
}

.arch-node-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  margin-bottom: 2px;
}

.arch-node-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.arch-arrow {
  color: var(--color-accent-light);
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* Feature & Benefit Lists */
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-base);
  color: #cbd5e1;
}

.feature-check {
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 3px;
}

/* Lead Generation Form */
.lead-form-container {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-xl);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: #e2e8f0;
}

.form-label span.req {
  color: var(--color-accent-light);
}

.form-input, .form-select, .form-textarea {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: #ffffff;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-accent-light);
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

.form-helper {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.form-feedback {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  display: none;
}

.form-feedback.success {
  display: block;
  background-color: var(--color-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.form-feedback.error {
  display: block;
  background-color: var(--color-danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  align-items: stretch;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 35px -5px rgba(37, 99, 235, 0.3);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.08) 0%, var(--color-bg-card) 100%);
}

.pricing-header {
  margin-bottom: var(--space-6);
}

.pricing-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  margin-top: var(--space-4);
  margin-bottom: 2px;
}

.pricing-subtext {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: var(--space-8) 0;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: #cbd5e1;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: #334155;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: #ffffff;
}

.faq-chevron {
  transition: transform var(--transition-fast);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--color-accent-light);
}

.faq-answer {
  display: none;
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: var(--space-4);
}

.faq-item.active .faq-answer {
  display: block;
}

/* Blog / Editorial Layout */
.article-header {
  margin-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-8);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.breadcrumbs a:hover {
  color: var(--color-accent-light);
}

.prose {
  color: #cbd5e1;
  font-size: 1.05rem;
  line-height: 1.8;
}

.prose h2 {
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-subtle);
  color: #ffffff;
}

.prose h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  color: #f1f5f9;
}

.prose p {
  margin-bottom: var(--space-6);
  color: #cbd5e1;
}

.prose ul, .prose ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.prose li {
  margin-bottom: var(--space-2);
}

.prose strong {
  color: #ffffff;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-8) 0;
  font-size: var(--font-size-sm);
}

.prose th, .prose td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.prose th {
  background-color: var(--color-bg-secondary);
  color: #ffffff;
  font-weight: var(--font-weight-semibold);
}

.prose td {
  color: #94a3b8;
}

.callout-box {
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-accent);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-8) 0;
}

.callout-box p {
  margin: 0;
  color: #e2e8f0;
}

/* Footer */
.site-footer {
  background-color: #070a12;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-brand {
  max-width: 320px;
}

.footer-col-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  color: #ffffff;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 540px;
    margin: 0 auto;
  }

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

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .desktop-nav, .header-cta {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .sticky-mobile-cta {
    display: block;
  }

  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }

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

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

  .architecture-flow {
    flex-direction: column;
  }

  .arch-arrow {
    transform: rotate(90deg);
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}