/* GEO Optimization Company - Design System Styles */

/* ========================================
   CSS Variables & Design Tokens
   ======================================== */
:root {
  /* Primary Colors */
  --color-white: #ffffff;
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-accent: #1e3a8a;
  --color-accent-hover: #1e40af;
  --color-accent-light: #dbeafe;
  
  /* Semantic Colors */
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-purple: #7c3aed;
  --color-purple-light: #ede9fe;
  
  /* Text Colors */
  --color-text-primary: #1f2937;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  --color-text-light: #ffffff;
  
  /* Border & Shadow */
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  
  /* Shadows - Shadow-as-border technique */
  --shadow-border: 0 0 0 1px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 0 0 1px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-card-hover: 0 0 0 1px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-elevated: 0 0 0 1px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.1);
  
  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-pill: 9999px;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
  
  /* Container */
  --container-max: 1200px;
  --container-padding: 24px;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  min-height: 100vh;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
}

.display-hero {
  font-size: 48px;
  font-weight: 600;
  letter-spacing: -2px;
  line-height: 1.1;
}

.section-heading {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -1.5px;
  line-height: 1.2;
}

.sub-heading {
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -1px;
  line-height: 1.25;
}

.card-title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.5px;
  line-height: 1.3;
}

.body-large {
  font-size: 18px;
  line-height: 1.8;
}

.body {
  font-size: 16px;
  line-height: 1.6;
}

.body-small {
  font-size: 14px;
  line-height: 1.5;
}

.caption {
  font-size: 13px;
  line-height: 1.4;
}

.micro {
  font-size: 12px;
  line-height: 1.3;
}

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

.section {
  padding: var(--space-20) 0;
}

.section-sm {
  padding: var(--space-12) 0;
}

.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

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

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.text-center {
  text-align: center;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--color-white);
  box-shadow: var(--shadow-border);
  z-index: 1000;
}

.navbar .container {
  height: 100%;
}

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

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text-primary);
}

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

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-primary);
  padding: var(--space-2) 0;
  position: relative;
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.navbar-link:hover::after,
.navbar-link.active::after {
  transform: scaleX(1);
}

.navbar-link.active {
  color: var(--color-accent);
}

.navbar-cta {
  margin-left: var(--space-4);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-text-primary);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--color-white);
  box-shadow: var(--shadow-elevated);
  padding: var(--space-6);
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu-link {
  display: block;
  padding: var(--space-4);
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-menu-link:last-child {
  border-bottom: none;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-light);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-text-light);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-border);
}

.btn-secondary:hover {
  background: var(--color-bg-secondary);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent-light);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 16px;
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: 13px;
}

/* ========================================
   Cards
   ======================================== */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
}

.card-featured {
  border: 2px solid var(--color-accent);
  position: relative;
}

.card-featured::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
}

.card-enterprise {
  border: 2px solid var(--color-purple);
}

/* ========================================
   Badge / Tag
   ======================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-pill);
}

.badge-primary {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-purple {
  background: var(--color-purple-light);
  color: var(--color-purple);
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--color-text-secondary);
  font-size: 18px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding-top: calc(64px + var(--space-20));
  padding-bottom: var(--space-20);
  background: var(--color-bg);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-title {
  font-size: 48px;
  font-weight: 600;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: 20px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   Stats Section
   ======================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.stat-card {
  text-align: center;
  padding: var(--space-8);
}

.stat-number {
  font-size: 48px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: -2px;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ========================================
   Service Cards
   ======================================== */
.service-card {
  padding: var(--space-8);
  text-align: center;
}

.service-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  color: var(--color-accent);
}

.service-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-3);
}

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

/* ========================================
   Feature Cards
   ======================================== */
.feature-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-6);
}

.feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.feature-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.feature-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  background: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-16) 0;
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 18px;
  margin-bottom: var(--space-8);
}

.cta-section .btn-primary {
  background: var(--color-white);
  color: var(--color-accent);
}

.cta-section .btn-primary:hover {
  background: var(--color-bg-secondary);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--color-bg-secondary);
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .navbar-logo {
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-column h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

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

.footer-links a {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer-copyright {
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-contact {
  display: flex;
  gap: var(--space-6);
  font-size: 13px;
  color: var(--color-text-secondary);
}

.footer-contact a {
  color: var(--color-text-secondary);
}

.footer-contact a:hover {
  color: var(--color-accent);
}

/* ========================================
   Page Header
   ======================================== */
.page-header {
  padding-top: calc(64px + var(--space-16));
  padding-bottom: var(--space-12);
  background: var(--color-bg-secondary);
  text-align: center;
}

.page-header h1 {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -1.5px;
  margin-bottom: var(--space-4);
}

.page-header p {
  font-size: 18px;
  color: var(--color-text-secondary);
}

/* ========================================
   Pricing Cards
   ======================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.pricing-card {
  padding: var(--space-8);
  text-align: center;
}

.pricing-card.recommended {
  border-color: var(--color-success);
  padding-top: var(--space-10);
}

.pricing-card.enterprise {
  border-color: var(--color-purple);
}

.pricing-name {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-size: 48px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: -2px;
}

.pricing-price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text-secondary);
}

.pricing-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: var(--space-4) 0;
}

.pricing-features {
  text-align: left;
  margin: var(--space-6) 0;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.pricing-features li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-success);
  margin-top: 2px;
}

.pricing-features li.disabled {
  color: var(--color-text-muted);
}

.pricing-features li.disabled svg {
  color: var(--color-text-muted);
}

/* ========================================
   Timeline
   ======================================== */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) - 5px);
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  border-radius: 50%;
}

.timeline-year {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.timeline-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.timeline-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ========================================
   FAQ
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-5) 0;
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  color: var(--color-text-primary);
  cursor: pointer;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding-bottom: var(--space-5);
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========================================
   Form Elements
   ======================================== */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ========================================
   Contact Info
   ======================================== */
.contact-info-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
}

.contact-info-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.contact-info-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.contact-info-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.contact-info-content a {
  color: var(--color-accent);
}

/* ========================================
   QR Code
   ======================================== */
.qr-code {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-6);
  text-align: center;
}

.qr-code img {
  width: 150px;
  height: 150px;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-md);
}

.qr-code p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ========================================
   Comparison Table
   ======================================== */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  font-size: 14px;
  font-weight: 600;
  background: var(--color-bg-secondary);
}

.comparison-table td {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.comparison-table td:first-child {
  font-weight: 500;
  color: var(--color-text-primary);
}

/* ========================================
   Industry Cards
   ======================================== */
.industry-card {
  padding: var(--space-6);
}

.industry-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.industry-problem,
.industry-solution,
.industry-result {
  margin-bottom: var(--space-3);
}

.industry-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-1);
}

.industry-text {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ========================================
   Advantages List
   ======================================== */
.advantage-item {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.advantage-item:last-child {
  border-bottom: none;
}

.advantage-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.advantage-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: var(--radius-lg);
  color: var(--color-accent);
}

.advantage-title h3 {
  font-size: 20px;
  font-weight: 600;
}

.advantage-title span {
  font-size: 14px;
  color: var(--color-text-secondary);
}

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

/* ========================================
   Guarantees
   ======================================== */
.guarantee-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  font-size: 14px;
}

.guarantee-item svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-success);
}

/* ========================================
   Workflow Steps
   ======================================== */
.workflow-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.workflow-steps::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 60px;
  right: 60px;
  height: 2px;
  background: var(--color-border);
}

.workflow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}

.workflow-step-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.workflow-step h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.workflow-step p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ========================================
   Discount Banner
   ======================================== */
.discount-banner {
  background: linear-gradient(135deg, var(--color-accent) 0%, #2563eb 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  color: var(--color-white);
  text-align: center;
}

.discount-banner h3 {
  color: var(--color-white);
  font-size: 24px;
  margin-bottom: var(--space-4);
}

.discount-options {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.discount-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
}

.discount-item .period {
  font-size: 14px;
  opacity: 0.8;
  margin-bottom: var(--space-1);
}

.discount-item .rate {
  font-size: 24px;
  font-weight: 600;
}

/* ========================================
   Custom Scrollbar
   ======================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ========================================
   Selection
   ======================================== */
::selection {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

/* ========================================
   Focus Visible
   ======================================== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ========================================
   Responsive Styles
   ======================================== */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-title {
    font-size: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
  }
  
  .navbar-menu {
    display: none;
  }
  
  .navbar-cta {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .section {
    padding: var(--space-12) 0;
  }
  
  .hero {
    padding-top: calc(64px + var(--space-12));
    padding-bottom: var(--space-12);
  }
  
  .hero-title {
    font-size: 32px;
    letter-spacing: -1px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .section-heading {
    font-size: 28px;
    letter-spacing: -0.5px;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stat-number {
    font-size: 36px;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
  
  .workflow-steps {
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .workflow-steps::before {
    display: none;
  }
  
  .page-header {
    padding-top: calc(64px + var(--space-10));
    padding-bottom: var(--space-8);
  }
  
  .page-header h1 {
    font-size: 28px;
  }
  
  .discount-options {
    flex-direction: column;
  }
  
  .section-header {
    margin-bottom: var(--space-8);
  }
  
  .section-header p {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .comparison-table {
    font-size: 13px;
  }
  
  .comparison-table th,
  .comparison-table td {
    padding: var(--space-3);
  }
}