/* ============================================================
   ONYX LAUNCHER — PREMIUM LANDING PAGE v2
   Design System & Styles
   Skills: ui-ux-pro-max | web-development-pro | motion-design-pro
   ============================================================ */

/* NOTE: Google Fonts are now loaded via <link> in HTML <head> for better LCP performance */

/* ============================================================
   1. DESIGN TOKENS
   ============================================================ */
:root {
  --bg: #F5F7FA;
  --bg-alt: #EDF0F5;
  --surface: #FFFFFF;
  --surface-hover: #F0F2F5;
  --accent: #3878D9;
  --accent-hover: #2D65BF;
  --accent-glow: rgba(56, 120, 217, 0.2);
  --accent-subtle: rgba(56, 120, 217, 0.06);
  --text-primary: #1A1A1F;
  --text-secondary: #666B73;
  --text-tertiary: #A0A4AB;
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(0, 0, 0, 0.06);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 80px rgba(56, 120, 217, 0.08);
  --nav-bg: rgba(245, 247, 250, 0.8);
  --hero-gradient: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(56, 120, 217, 0.08), transparent);
  --card-gradient: linear-gradient(135deg, rgba(56, 120, 217, 0.03) 0%, transparent 50%);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
  --font-4xl: 2.25rem;
  --font-5xl: 3rem;
  --font-hero: clamp(2.5rem, 5vw, 4.5rem);
  --line-tight: 1.1;
  --line-snug: 1.3;
  --line-normal: 1.6;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.87, 0, 0.13, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-normal: 300ms var(--ease-out);
  --transition-slow: 500ms var(--ease-out);
  --transition-theme: 200ms var(--ease-out);

  --mac-close: #FF5F56;
  --mac-minimize: #FFBD2E;
  --mac-maximize: #27C93F;
}

[data-theme="dark"] {
  --bg: #0F1721;
  --bg-alt: #0A1018;
  --surface: #1A2635;
  --surface-hover: #1F2E40;
  --accent: #4D8AEB;
  --accent-hover: #6BA0F0;
  --accent-glow: rgba(77, 138, 235, 0.3);
  --accent-subtle: rgba(77, 138, 235, 0.1);
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.55);
  --text-tertiary: rgba(255, 255, 255, 0.3);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --glass-bg: rgba(26, 38, 53, 0.6);
  --glass-border: rgba(255, 255, 255, 0.06);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 80px rgba(77, 138, 235, 0.15);
  --nav-bg: rgba(15, 23, 33, 0.75);
  --hero-gradient: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(77, 138, 235, 0.15), transparent);
  --card-gradient: linear-gradient(135deg, rgba(77, 138, 235, 0.05) 0%, transparent 50%);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: var(--line-normal);
  overflow-x: hidden;
  transition: background-color var(--transition-theme), color var(--transition-theme);
}

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

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

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

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

::selection {
  background: var(--accent);
  color: #fff;
}

/* ============================================================
   3. LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
  position: relative;
  z-index: 1;
}

/* Lucide Icon Styling */
.section-label .lucide,
.benefit-icon .lucide,
.nav-toggle .lucide,
.btn .lucide,
.download-icon .lucide {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.section-label .lucide {
  width: 16px;
  height: 16px;
}

.benefit-icon .lucide {
  width: 24px;
  height: 24px;
  color: var(--accent);
  transition: color var(--transition-normal);
}

.benefit-card:hover .benefit-icon .lucide {
  color: #fff;
}

.download-icon .lucide {
  width: 40px;
  height: 40px;
}

.nav-toggle .lucide {
  width: 18px;
  height: 18px;
}

/* ============================================================
   4. NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - var(--space-8));
  max-width: 960px;
  height: 64px;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
}

.navbar.scrolled {
  top: var(--space-2);
  max-width: 900px;
  height: 56px;
  background: var(--nav-bg);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(77, 138, 235, 0.2);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 100%;
  padding: 0 var(--space-4);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--font-xl);
  color: var(--text-primary);
  transition: color var(--transition-theme);
  padding-left: var(--space-2);
}

.nav-logo:hover {
  transform: scale(1.02);
}

.nav-links {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  background: rgba(0, 0, 0, 0.1);
  padding: var(--space-1);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: var(--font-sm);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  transition: color var(--transition-fast);
  position: relative;
  z-index: 1;
}

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

.nav-indicator {
  position: absolute;
  top: var(--space-1);
  bottom: var(--space-1);
  left: 0;
  width: 0;
  background: rgba(0, 0, 0, 0.05);
  border-radius: var(--radius-full);
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transform-origin: center;
  will-change: left, width, opacity;
}

[data-theme="dark"] .nav-indicator {
  background: rgba(255, 255, 255, 0.06);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-toggle {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.lang-toggle {
  font-size: var(--font-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  min-width: 38px;
}

.mobile-menu-btn {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
}

.mobile-menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* ============================================================
   5. HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: calc(80px + var(--space-16));
  padding-bottom: var(--space-16);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-gradient);
  pointer-events: none;
  transition: background var(--transition-theme);
}

#hero-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.6fr);
  gap: var(--space-12);
  align-items: center;
  text-align: left;
}

.hero-text-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-subtle);
  border: 1px solid rgba(77, 138, 235, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--accent);
  margin-bottom: var(--space-8);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s infinite;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--font-hero);
  font-weight: 900;
  line-height: var(--line-tight);
  margin-bottom: var(--space-6);
  text-align: left;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(var(--font-base), 1.8vw, var(--font-lg));
  color: var(--text-secondary);
  margin: 0 0 var(--space-10);
  line-height: var(--line-snug);
  text-align: left;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  flex-wrap: nowrap;
}

/* Social Proof under Hero CTA */
.hero-social-proof {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.social-proof-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-sm);
  color: var(--text-tertiary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.social-proof-item .lucide {
  width: 16px;
  height: 16px;
  color: var(--accent);
  opacity: 0.7;
}

.social-proof-item:hover {
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-base);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--accent);
  color: #FFF;
  box-shadow: 0 4px 16px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
  color: #FFF;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
  transform: translateY(-2px);
}

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Hero Visual & Video Players */
.hero-visual-side {
  position: relative;
  perspective: 1200px;
  width: 100%;
  min-width: 0;
}

@media (min-width: 1025px) {
  .hero-visual-side {
    margin-left: 48px;
    margin-top: -65px;
  }
}

.hero-showcase-inner {
  transform: rotateY(-4deg) rotateX(3deg);
  transition: transform 0.4s var(--ease-out);
  will-change: transform;
}

.hero-visual-side:hover .hero-showcase-inner {
  transform: rotateY(-2deg) rotateX(1deg) translateY(-4px);
}

.video-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--surface);
  overflow: hidden;
}

.hero-video-container {
  aspect-ratio: 1650 / 1080;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-video-container .hero-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.macos-window {
  border-color: #C5D4EB;
  /* Непрозорий ніжний блакитно-сірий акцент (default light) */
}

[data-theme="dark"] .macos-window {
  border-color: #1D2E44;
  /* Непрозорий глибокий сапфіровий акцент */
}

.video-placeholder-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 16, 24, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--font-sm);
  padding: var(--space-6);
  z-index: 2;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
  pointer-events: none;
  font-family: var(--font-body);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.video-placeholder-overlay span {
  max-width: 85%;
  font-weight: 500;
  line-height: 1.4;
  margin-top: 8px;
}

.video-placeholder-overlay .lucide {
  color: var(--accent);
  animation: pulse-dot 2s infinite;
}

.video-container.playing .video-placeholder-overlay,
.feature-video-container.playing .video-placeholder-overlay {
  opacity: 0;
  visibility: hidden;
}

/* Feature Video Player */
.feature-video-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--surface);
  overflow: hidden;
}

.feature-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ============================================================
   6. macOS WINDOW
   ============================================================ */
.macos-window {
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  position: relative;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-theme);

  /* Fix jagged rounded corners and noise under 3D transformations */
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  -webkit-mask-image: -webkit-radial-gradient(white, black);
  background-clip: padding-box;
}

.macos-window::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 50%);
  z-index: 4;
  pointer-events: none;
}

[data-theme="light"] .macos-window::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0) 50%);
}

.macos-window::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 3px solid var(--border);
  border-radius: inherit;
  pointer-events: none;
  z-index: 5;
  transition: border-color var(--transition-theme);
}

.macos-window--hero {
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.macos-titlebar {
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  height: 44px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-theme);
  user-select: none;
}

.macos-dots {
  display: flex;
  gap: 8px;
}

.macos-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transition: filter var(--transition-fast);
}

.macos-dot--close {
  background: var(--mac-close);
}

.macos-dot--minimize {
  background: var(--mac-minimize);
}

.macos-dot--maximize {
  background: var(--mac-maximize);
}

.macos-window:hover .macos-dot {
  filter: brightness(1.15);
}

.macos-title {
  flex: 1;
  text-align: center;
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-right: 60px;
}

.macos-body {
  position: relative;
  overflow: hidden;
}

.macos-body img {
  width: 100%;
  display: block;
}

/* ============================================================
   7. BENEFITS
   ============================================================ */
.benefits {
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--font-3xl), 4vw, var(--font-5xl));
  font-weight: 800;
  line-height: var(--line-tight);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--font-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

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

.benefit-card {
  position: relative;
  padding: var(--space-8);
  background: var(--card-gradient), var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.benefit-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.benefit-card:hover::before {
  opacity: 1;
}

.benefit-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--accent-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  transition: all var(--transition-normal);
}

.benefit-card:hover .benefit-icon {
  background: var(--accent);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.benefit-title {
  font-family: var(--font-heading);
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.benefit-desc {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: var(--line-normal);
}

/* ============================================================
   8. FEATURES (Pinned scroll-driven on desktop)
   ============================================================ */
.features {
  position: relative;
  transition: background var(--transition-theme);
}

/* Feature cards — vertical alternating layout */
.feature-card {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-12);
  align-items: center;
  padding: var(--space-12) 0;
}

.feature-card--reverse {
  grid-template-columns: 1.3fr 1fr;
}

.feature-card--reverse .feature-card-text {
  order: 2;
}

.feature-card--reverse .feature-card-visual {
  order: 1;
}

.feature-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--accent-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--accent);
}

.feature-card-icon .lucide {
  width: 24px;
  height: 24px;
}

.feature-card-text h3 {
  font-family: var(--font-heading);
  font-size: var(--font-2xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
}

.feature-card-text p {
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: var(--line-normal);
  margin-bottom: var(--space-5);
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--font-sm);
  color: var(--text-secondary);
}

.feature-list li .lucide {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-card-visual {
  perspective: 800px;
}

.feature-card-visual .macos-window {
  transition: all var(--transition-slow);
}

.feature-card-visual .macos-window:hover {
  transform: rotateY(-2deg) rotateX(1deg) translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.feature-card--reverse .feature-card-visual .macos-window:hover {
  transform: rotateY(2deg) rotateX(1deg) translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* ============================================================
   10. DOWNLOAD
   ============================================================ */
.download {
  position: relative;
}

.download-card {
  position: relative;
  padding: var(--space-16) var(--space-12);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  text-align: center;
  overflow: hidden;
  background-color: var(--bg);
  transition: border-color var(--transition-theme), background-color var(--transition-theme);
}

.download-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  z-index: -2;
  pointer-events: none;
  transition: opacity 300ms ease-in-out;
}

.download-card-bg--light {
  background-image: linear-gradient(rgba(255, 255, 255, 0.65), rgba(245, 247, 250, 0.85)), url('../images/Minecraft_world_with_buildings_202606020136.jpeg');
  opacity: 1;
}

.download-card-bg--dark {
  background-image: linear-gradient(rgba(15, 23, 33, 0.55), rgba(15, 23, 33, 0.82)), url('../images/Minecraft_world_with_buildings_202606020136-2.jpeg');
  opacity: 0;
}

[data-theme="dark"] .download-card-bg--light {
  opacity: 0;
}

[data-theme="dark"] .download-card-bg--dark {
  opacity: 1;
}

.download-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--accent), transparent 40%, transparent 60%, var(--accent));
  border-radius: var(--radius-2xl);
  z-index: -1;
  opacity: 0.3;
}

.download-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6);
  background: var(--accent-subtle);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.download-title {
  font-family: var(--font-heading);
  font-size: var(--font-4xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .download-title {
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
}

.download-subtitle {
  font-size: var(--font-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .download-subtitle {
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
}

.download-version {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background: var(--accent-subtle);
  border-radius: var(--radius-full);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--accent);
  margin-bottom: var(--space-8);
}

.download-btn {
  padding: var(--space-4) var(--space-10);
  font-size: var(--font-lg);
  font-weight: 700;
  border-radius: var(--radius-xl);
}

.download-meta {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}

.download-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .download-meta-item {
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

.download-meta-item .lucide {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

/* ============================================================
   11. FOOTER
   ============================================================ */
.footer {
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-lg);
  color: var(--text-primary);
}

.footer-logo-icon {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.footer-logo-icon .lucide {
  width: 14px;
  height: 14px;
}

.footer-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}

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

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

.footer-bottom {
  text-align: center;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  font-size: var(--font-sm);
  color: var(--text-tertiary);
}

/* ============================================================
   12. ANIMATIONS
   ============================================================ */
@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

@keyframes scrollHintPulse {

  0%,
  100% {
    opacity: 0.4;
  }

  50% {
    opacity: 1;
  }
}

/* Scroll reveal - initial hidden state (GSAP handles the animation) */
.reveal {
  opacity: 0;
  transform: translateY(50px);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-80px) rotate(-2deg);
}

.reveal-right {
  opacity: 0;
  transform: translateX(80px) rotate(2deg);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.85);
  filter: blur(4px);
}


/* ============================================================
   13. RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-10);
  }

  .hero-text-side {
    align-items: center;
    text-align: center;
  }

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

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

  .hero-buttons {
    justify-content: center;
    margin-bottom: var(--space-8);
  }

  .hero-showcase-inner {
    transform: rotateX(2deg) rotateY(0deg) !important;
  }

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

  .feature-card,
  .feature-card--reverse {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .feature-card--reverse .feature-card-text {
    order: 1;
  }

  .feature-card--reverse .feature-card-visual {
    order: 2;
  }
}

@media (max-width: 640px) {
  .navbar {
    top: var(--space-2);
    width: calc(100% - var(--space-4));
    height: 56px;
  }

  .section {
    padding: var(--space-16) 0;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    padding-top: calc(70px + var(--space-12));
    min-height: auto;
    padding-bottom: var(--space-12);
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-buttons {
    flex-direction: column;
    margin-bottom: var(--space-10);
  }

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

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

  .download-card {
    padding: var(--space-10) var(--space-6);
  }

  .download-meta {
    flex-direction: column;
    gap: var(--space-4);
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  /* Ensure theme icon doesn't shrink */
  .nav-toggle .lucide {
    width: 20px !important;
    height: 20px !important;
    min-width: 20px;
    min-height: 20px;
  }
}

/* ============================================================
   14. REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero-showcase-inner {
    transform: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .reveal-left {
    opacity: 1;
    transform: none;
  }

  .reveal-right {
    opacity: 1;
    transform: none;
  }

  .reveal-scale {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

/* ============================================================
   15. MOBILE MENU
   ============================================================ */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  z-index: 1100;
  background: var(--surface);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: var(--space-20) var(--space-6) var(--space-6);
  gap: var(--space-4);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
  visibility: hidden;
  pointer-events: none;
}

.mobile-menu.open {
  transform: translateX(-320px);
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu a {
  font-family: var(--font-heading);
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-primary);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-menu a:hover {
  background: var(--accent-subtle);
  color: var(--accent);
}

.mobile-menu-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--surface-hover);
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
  color: var(--text-primary);
  transform: rotate(90deg);
}

/* ============================================================
   16. THEME TRANSITIONS
   ============================================================ */
/* Ensure all typography, buttons, cards, and links transition colors smoothly */
.hero-title,
.hero-subtitle,
.section-title,
.section-subtitle,
.benefit-title,
.benefit-desc,
.feature-card-text h3,
.feature-card-text p,
.download-title,
.download-subtitle,
.download-card,
.download-icon,
.download-icon .lucide,
.download-meta-item,
.btn,
.nav-links a,
.nav-toggle,
.mobile-menu a,
.macos-window,
.navbar {
  transition: color var(--transition-theme), background-color var(--transition-theme), border-color var(--transition-theme), box-shadow var(--transition-theme), background var(--transition-theme), stroke var(--transition-theme), fill var(--transition-theme);
}

/* ============================================================
   17. PRIVACY POLICY & DOCUMENTATION PAGE
   ============================================================ */
.policy-page {
  padding-top: calc(80px + var(--space-16));
  padding-bottom: var(--space-20);
  position: relative;
  z-index: 1;
}

.policy-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-gradient);
  pointer-events: none;
  z-index: -1;
}

.policy-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-16);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-12);
  transition: background-color var(--transition-theme), border-color var(--transition-theme), box-shadow var(--transition-theme);
}

.policy-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-8);
  text-align: left;
}

.policy-title {
  font-family: var(--font-heading);
  font-size: var(--font-4xl);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  transition: color var(--transition-theme);
}

.policy-subtitle {
  font-size: var(--font-xl);
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-4);
  transition: color var(--transition-theme);
}

.policy-meta {
  font-size: var(--font-sm);
  color: var(--text-tertiary);
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
  transition: color var(--transition-theme);
}

.policy-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.policy-meta-item .lucide {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

.policy-body {
  line-height: 1.7;
  color: var(--text-primary);
}

.policy-body p {
  margin-bottom: var(--space-6);
  font-size: var(--font-base);
  color: var(--text-secondary);
  transition: color var(--transition-theme);
}

.policy-body h2 {
  font-family: var(--font-heading);
  font-size: var(--font-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-2);
  transition: color var(--transition-theme), border-color var(--transition-theme);
}

.policy-body h3 {
  font-family: var(--font-heading);
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  transition: color var(--transition-theme);
}

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

.policy-body li {
  margin-bottom: var(--space-2);
  font-size: var(--font-base);
  color: var(--text-secondary);
  transition: color var(--transition-theme);
}

.policy-body code {
  font-family: monospace;
  background: var(--bg-alt);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  color: var(--accent);
  transition: color var(--transition-theme), background-color var(--transition-theme);
}

.policy-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-8) 0;
  font-size: var(--font-sm);
  text-align: left;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: border-color var(--transition-theme);
}

.policy-body th,
.policy-body td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition-theme), background-color var(--transition-theme), color var(--transition-theme);
}

.policy-body th {
  background-color: var(--accent-subtle);
  color: var(--text-primary);
  font-weight: 600;
}

.policy-body td {
  color: var(--text-secondary);
}

.policy-body tr:last-child td {
  border-bottom: none;
}

.policy-back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-right: var(--space-2);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: var(--font-sm);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.policy-back-btn:hover {
  color: var(--accent);
  transform: translateX(-2px);
}

.policy-back-btn .lucide {
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  .policy-card {
    padding: var(--space-8) var(--space-6);
  }
}

@media (max-width: 640px) {
  .policy-card {
    padding: var(--space-6) var(--space-4);
  }

  .policy-title {
    font-size: var(--font-2xl);
  }

  .policy-subtitle {
    font-size: var(--font-base);
  }

  .policy-meta {
    flex-direction: column;
    gap: var(--space-1);
  }
}