/* ============================================
   OMNITOK DESIGN SYSTEM - CSS Variables
   Based on @omnitok/ui design tokens
   ============================================ */
:root {
  /* Primary */
  --primary: #4D4A9D;
  --primary-dark: #3B3880;
  --primary-light: rgba(77, 74, 157, 0.1);

  /* Accent */
  --accent: #FF177B;
  --accent-dark: #E0156E;
  --accent-light: rgba(255, 23, 123, 0.1);

  /* Sidebar */
  --sidebar-bg: #211f4b;

  /* Neutral */
  --neutral: #9CA3AF;
  --neutral-dark: #374151;
  --neutral-light: #F3F4F6;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Semantic */
  --success: #10B981;
  --success-dark: #059669;
  --success-light: rgba(16, 185, 129, 0.1);
  --warning: #F59E0B;
  --warning-dark: #D97706;
  --warning-light: rgba(245, 158, 11, 0.1);
  --error: #EF4444;
  --error-dark: #DC2626;
  --error-light: rgba(239, 68, 68, 0.1);
  --info: #3B82F6;
  --info-dark: #2563EB;
  --info-light: rgba(59, 130, 246, 0.1);

  /* Auxiliary */
  --violet: #8B5CF6;
  --violet-light: rgba(139, 92, 246, 0.1);
  --rose: #EC4899;
  --rose-light: rgba(236, 72, 153, 0.1);
  --teal: #14B8A6;
  --teal-light: rgba(20, 184, 166, 0.1);

  /* Gradients */
  --gradient-active: linear-gradient(90deg, #FF177B 0%, #4D4A9D 100%);
  --gradient-brand: linear-gradient(90deg, #4D4A9D 0%, #3B3880 100%);
  --gradient-hero: linear-gradient(135deg, #211f4b 0%, #4D4A9D 50%, #3B3880 100%);

  /* Shadows (from Omnitok preset) */
  --shadow-card: 0 1px 3px 0 rgba(0,0,0,0.1), 0 1px 2px -1px rgba(0,0,0,0.1);
  --shadow-card-hover: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-modal: 0 25px 50px -12px rgba(0,0,0,0.25);

  /* Typography */
  --font-ui: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Open Sans', 'SF Mono', 'Monaco', monospace;

  /* Radius */
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-ui);
  color: var(--gray-800);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
code {
  font-family: var(--font-mono);
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--primary);
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-gradient {
  background: var(--gradient-active);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-primary-light { background: var(--primary-light); }
.bg-accent-light { background: var(--accent-light); }
.bg-success-light { background: var(--success-light); }
.bg-info-light { background: var(--info-light); }
.bg-violet-light { background: var(--violet-light); }
.bg-teal-light { background: var(--teal-light); }

/* ============================================
   BUTTONS (mirrors @omnitok/ui Button)
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover { opacity: 0.9; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-dark);
  opacity: 1;
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  opacity: 1;
}

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--gray-200);
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  display: flex;
  align-items: center;
}

.logo-text {
  font-weight: 800;
  font-size: 16px;
  color: var(--gray-900);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-600);
  transition: color 0.2s;
}

.header-nav a:hover { color: var(--primary); }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-700);
  padding: 4px;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--gray-200);
  background: #fff;
}

.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-600);
  padding: 6px 0;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 120px 0 60px;
  background: linear-gradient(180deg, #f8f7ff 0%, #fff 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.badge-pill {
  display: inline-flex;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--gray-500);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Browser Mockup */
.browser-mockup {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.browser-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gray-300);
}

.browser-dots span:first-child { background: #EF4444; }
.browser-dots span:nth-child(2) { background: #F59E0B; }
.browser-dots span:last-child { background: #10B981; }

.browser-url {
  flex: 1;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--gray-500);
  font-family: var(--font-mono);
}

.browser-body {
  padding: 20px;
  min-height: 220px;
  position: relative;
}

.mock-page { position: relative; }

.mock-header-bar {
  height: 8px;
  width: 60%;
  background: var(--gray-200);
  border-radius: 4px;
  margin-bottom: 16px;
}

.mock-content { margin-bottom: 12px; }

.mock-line {
  height: 6px;
  background: var(--gray-200);
  border-radius: 3px;
  margin-bottom: 8px;
}

.mock-line.w40 { width: 40%; }
.mock-line.w50 { width: 50%; }
.mock-line.w60 { width: 60%; }
.mock-line.w70 { width: 70%; }
.mock-line.w80 { width: 80%; }
.mock-line.accent { background: var(--accent-light); border: 1px solid rgba(255, 23, 123, 0.2); }

.mock-injected {
  border: 2px dashed var(--accent);
  border-radius: var(--radius);
  padding: 12px;
  margin: 12px 0;
  background: rgba(255, 23, 123, 0.03);
}

.mock-injected-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.mock-picker-overlay {
  position: absolute;
  top: 50%;
  left: 5%;
  right: 5%;
  height: 45%;
  border: 2px solid var(--info);
  background: rgba(59, 130, 246, 0.08);
  border-radius: 4px;
  pointer-events: none;
}

.mock-picker-tooltip {
  position: absolute;
  top: -24px;
  left: 0;
  background: var(--gray-900);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 4px;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--gray-50);
}

.section-dark {
  background: var(--gradient-hero);
  color: #fff;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.section-alt .section-header h2,
.section .section-header h2 { color: var(--gray-900); }

.section-header p {
  font-size: 16px;
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 auto;
}

/* ============================================
   CARDS (mirrors @omnitok/ui Card)
   ============================================ */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
}

.card-hoverable:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
  border-color: var(--gray-300);
}

.card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.6;
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

/* ============================================
   FEATURES GRID
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ============================================
   DOWNLOAD SECTION
   ============================================ */
.download-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.download-info h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}

.download-info p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 20px;
  max-width: 460px;
}

.download-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.download-btn {
  flex-shrink: 0;
  padding: 16px 32px;
  font-size: 17px;
  box-shadow: 0 4px 20px rgba(255, 23, 123, 0.35);
}

.download-btn:hover {
  box-shadow: 0 6px 28px rgba(255, 23, 123, 0.5);
}

/* ============================================
   INSTALLATION STEPS
   ============================================ */
.steps-container {
  max-width: 720px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  position: relative;
}

.step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: -32px;
  width: 2px;
  background: var(--gray-200);
}

.step-number {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  z-index: 1;
}

.step-content {
  flex: 1;
}

.step-content .card {
  padding: 20px;
}

.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.step-content p {
  font-size: 14px;
  color: var(--gray-600);
  margin-bottom: 12px;
  line-height: 1.6;
}

.step-hint {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 8px;
}

.url-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 8px 14px;
  margin: 12px 0;
}

.url-bar code {
  background: none;
  color: var(--primary);
  font-weight: 600;
  padding: 0;
}

.step-visual {
  margin-top: 12px;
}

/* File tree */
.file-tree {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0 3px 24px;
  color: var(--gray-600);
}

.file-item.folder {
  padding-left: 0;
  font-weight: 600;
  color: var(--gray-800);
}

/* Chrome button mock */
.mock-chrome-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

/* Pin demo */
.pin-demo {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
}

.pin-icon { display: flex; }

.pin-svg {
  margin-left: auto;
}

/* ============================================
   USAGE GUIDE STEPS
   ============================================ */
.guide-step {
  margin-bottom: 48px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.guide-step-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  background: var(--gradient-brand);
  color: #fff;
}

.guide-step-num {
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.guide-step-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.guide-step-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  padding: 28px;
}

.guide-text p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 12px;
}

.guide-text ol, .guide-text ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.guide-text li {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 6px;
}

.guide-text li ul {
  margin-top: 6px;
  margin-bottom: 6px;
}

/* Example boxes */
.example-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 8px 14px;
  margin: 8px 0;
}

.example-box code {
  font-weight: 600;
  white-space: nowrap;
}

.example-desc {
  font-size: 12px;
  color: var(--gray-400);
}

/* Tip boxes */
.tip-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--warning-light);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 13px;
  color: var(--gray-700);
  margin-top: 12px;
}

.tip-box svg { flex-shrink: 0; margin-top: 2px; }

.tip-important {
  background: var(--error-light);
  border-color: rgba(239, 68, 68, 0.2);
}

/* ============================================
   GUIDE VISUAL MOCKUPS
   ============================================ */

/* Popup mockup */
.popup-mockup {
  background: #f8fafc;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 16px;
  font-size: 13px;
  box-shadow: var(--shadow-card);
  max-width: 320px;
  margin: 0 auto;
}

.popup-header-mock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.popup-title-mock {
  font-weight: 800;
  font-size: 15px;
  color: var(--gray-900);
}

.mock-btn-new {
  background: var(--primary);
  color: #fff;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 700;
}

.mock-btn-new.small { padding: 4px 10px; font-size: 11px; }

.popup-url-mock {
  background: var(--gray-200);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 11px;
  color: var(--gray-500);
  margin-bottom: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.popup-empty-mock {
  text-align: center;
  padding: 24px 12px;
  color: var(--gray-400);
  font-size: 12px;
}

.popup-empty-mock p { margin-bottom: 2px; }

/* Config card mockup */
.config-card-mock {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 12px;
}

.config-card-mock.active {
  border: 2px solid var(--success);
}

.config-card-header-mock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.config-card-name-mock {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 13px;
  color: var(--gray-900);
}

.status-dot-mock {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-400);
}

.status-dot-mock.active { background: var(--success); }

.toggle-mock {
  width: 32px;
  height: 18px;
  border-radius: 9px;
  background: var(--gray-300);
  position: relative;
}

.toggle-mock::after {
  content: '';
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform 0.2s;
}

.toggle-mock.on {
  background: var(--primary);
}

.toggle-mock.on::after {
  transform: translateX(14px);
}

.config-card-meta-mock {
  font-size: 11px;
  color: var(--gray-500);
  line-height: 1.6;
}

.config-card-meta-mock code {
  font-size: 10px;
}

/* Form mockup */
.form-mockup {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  max-width: 320px;
  margin: 0 auto;
}

.form-field-mock {
  margin-bottom: 14px;
}

.form-field-mock label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: 4px;
}

.hint-mock {
  font-weight: 400;
  color: var(--gray-400);
  font-size: 11px;
}

.input-mock {
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 12px;
  color: var(--gray-400);
  background: #fff;
}

.input-mock.filled {
  color: var(--gray-800);
  border-color: var(--gray-300);
}

.input-mock.mono {
  font-family: var(--font-mono);
  font-size: 11px;
}

.input-mock.small {
  padding: 5px 8px;
  font-size: 11px;
}

/* Picker demo */
.picker-demo {
  max-width: 300px;
  margin: 0 auto;
}

.picker-page-mock {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  min-height: 160px;
}

.picker-element-mock {
  position: relative;
  border: 2px solid var(--info);
  background: rgba(59, 130, 246, 0.08);
  border-radius: 6px;
  padding: 20px;
}

.picker-tooltip-mock {
  position: absolute;
  top: -24px;
  left: 0;
  background: var(--gray-900);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.picker-overlay-mock {
  position: absolute;
  inset: 0;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 4px;
}

.picker-inner-line {
  height: 6px;
  width: 70%;
  background: var(--gray-300);
  border-radius: 3px;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.picker-inner-line.short { width: 45%; }

.picker-cursor {
  position: absolute;
  right: 30px;
  bottom: 20px;
}

/* Script mockup */
.script-mockup {
  max-width: 320px;
  margin: 0 auto;
}

.script-block-mock {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-card);
}

.script-block-header-mock {
  font-weight: 700;
  font-size: 12px;
  color: var(--gray-600);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-100);
}

.attr-mock-row {
  display: flex;
  gap: 8px;
  margin-bottom: 6px;
}

.attr-mock-row .input-mock {
  flex: 1;
}

/* ============================================
   CODE BLOCK
   ============================================ */
.code-block {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  margin: 16px 0;
}

.code-header {
  background: var(--gradient-brand);
  color: #fff;
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 700;
}

.code-block pre {
  background: var(--gray-900);
  padding: 16px 20px;
  overflow-x: auto;
  margin: 0;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--gray-400);
  background: none;
  padding: 0;
}

.code-highlight {
  color: var(--accent);
  font-weight: 600;
}

/* ============================================
   FAQ
   ============================================ */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.faq-grid .card {
  padding: 20px;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 48px 0 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-text { color: #fff; }

.footer-desc {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 8px;
  max-width: 300px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 13px;
  color: var(--gray-400);
  font-weight: 600;
  transition: color 0.2s;
}

.footer-links a:hover { color: #fff; }

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: var(--gray-600);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero h1 { font-size: 32px; }

  .hero-visual { order: -1; }

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

  .guide-step-body {
    grid-template-columns: 1fr;
  }

  .download-box {
    flex-direction: column;
    text-align: center;
  }

  .download-meta { justify-content: center; }

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

  .footer-inner {
    flex-direction: column;
    gap: 24px;
  }
}

@media (max-width: 640px) {
  .header-nav { display: none; }
  .mobile-menu-btn { display: block; }

  .hero { padding: 100px 0 40px; }
  .hero h1 { font-size: 28px; }
  .hero-subtitle { font-size: 15px; }

  .section { padding: 56px 0; }
  .section-header h2 { font-size: 26px; }

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

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    justify-content: center;
    width: 100%;
  }

  .guide-step-header {
    padding: 16px 20px;
  }

  .guide-step-body {
    padding: 20px;
  }

  .step { gap: 16px; }

  .footer-links {
    flex-direction: column;
    gap: 12px;
  }
}