/* ==========================================================================
   Fivemods+ Clone - Styles
   ========================================================================== */

/* CSS Custom Properties */
:root {
  /* Colors */
  --color-bg: #0a0a0a;
  --color-bg-elevated: #111111;
  --color-bg-card: #161616;
  --color-border: #2a2a2a;
  --color-border-light: #333333;
  --color-fg: #ffffff;
  --color-fg-muted: #a1a1aa;
  --color-fg-subtle: #71717a;
  --color-accent: #00d4aa;
  --color-accent-hover: #00e8bb;
  --color-accent-dim: rgba(0, 212, 170, 0.15);
  --color-accent-glow: rgba(0, 212, 170, 0.4);
  --color-orange: #ff6b35;
  --color-orange-dim: rgba(255, 107, 53, 0.15);
  --color-blue: #6366f1;
  --color-blue-dim: rgba(99, 102, 241, 0.15);
  --color-red: #ef4444;
  --color-red-dim: rgba(239, 68, 68, 0.15);
  --color-yellow: #fbbf24;
  --color-yellow-dim: rgba(251, 191, 36, 0.15);
  
  /* Gradients */
  --gradient-hero: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 212, 170, 0.12) 0%, transparent 70%),
                   radial-gradient(ellipse 60% 40% at 100% 100%, rgba(255, 107, 53, 0.1) 0%, transparent 60%),
                   radial-gradient(ellipse 50% 30% at 0% 100%, rgba(99, 102, 241, 0.08) 0%, transparent 50%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%);
  --gradient-accent: linear-gradient(135deg, #00d4aa 0%, #00b894 100%);
  --gradient-orange: linear-gradient(135deg, #ff6b35 0%, #e85d2a 100%);
  --gradient-text: linear-gradient(135deg, #ffffff 0%, #a1a1aa 100%);
  
  /* Typography */
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Sizing */
  --container-max: 1280px;
  --container-padding: 1.5rem;
  --nav-height: 72px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  --shadow-xl: 0 24px 48px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 40px var(--color-accent-glow);
  --shadow-glow-orange: 0 0 40px rgba(255, 107, 53, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* Light theme (optional) */
@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #fafafa;
    --color-bg-elevated: #ffffff;
    --color-bg-card: #f4f4f5;
    --color-border: #e4e4e7;
    --color-border-light: #d4d4d8;
    --color-fg: #18181b;
    --color-fg-muted: #52525b;
    --color-fg-subtle: #71717a;
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-fg);
  line-height: 1.6;
  font-size: 1rem;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul, ol {
  list-style: none;
}

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

/* Selection */
::selection {
  background: var(--color-accent-dim);
  color: var(--color-fg);
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-fg-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-fixed);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base), border-color var(--transition-base);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--color-fg);
  transition: opacity var(--transition-fast);
}

.nav-logo:hover { opacity: 0.8; }

.logo-icon { width: 32px; height: 32px; color: var(--color-accent); }

.nav-links {
  display: none;
  gap: var(--space-xl);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-fg-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-fg);
}

.nav-link:hover::after,
.nav-link:focus::after { width: 100%; }

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--gradient-accent);
  color: #000;
  box-shadow: 0 4px 16px rgba(0, 212, 170, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 212, 170, 0.4);
}

.btn-primary:active:not(:disabled) { transform: translateY(0); }

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

.btn-outline:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

.btn-ghost {
  color: var(--color-fg-muted);
  background: transparent;
  padding: 0.5rem 1rem;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--color-fg);
  background: var(--color-bg-card);
}

.btn-lg { padding: 1rem 2rem; font-size: 1rem; }

.btn-block { width: 100%; }

.btn-arrow { width: 20px; height: 20px; flex-shrink: 0; transition: transform var(--transition-fast); }

.btn-primary:hover .btn-arrow { transform: translateX(4px); }

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4xl) var(--container-padding);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-accent-dim);
  border: 1px solid rgba(0, 212, 170, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-fg-muted);
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; gap: var(--space-xs); }

.stat-value {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label { font-size: 0.875rem; color: var(--color-fg-subtle); }

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

/* Hero Visual */
.hero-visual { position: relative; display: none; }

.hero-device { position: relative; }

.device-frame {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  border-radius: 24px;
  background: linear-gradient(145deg, #0d0d0d 0%, #1a1a1a 100%);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  overflow: hidden;
  position: relative;
}

.device-frame::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.5;
}

.device-screen { border-radius: 0 0 24px 24px; overflow: hidden; }

.screen-content { padding: var(--space-md); }

.screen-header {
  display: flex;
  justify-content: center;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
}

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

.screen-dots span {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--color-border);
}

.screen-dots span:first-child { background: #ff5f57; }
.screen-dots span:nth-child(2) { background: #febc2e; }
.screen-dots span:last-child { background: #28ca42; }

.app-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-sm);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  color: var(--color-fg-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.sidebar-item svg { width: 20px; height: 20px; flex-shrink: 0; }

.sidebar-item:hover { background: var(--color-bg-card); color: var(--color-fg); }

.sidebar-item.active {
  background: var(--color-accent-dim);
  color: var(--color-accent);
}

.app-main { margin-top: var(--space-lg); display: flex; flex-direction: column; gap: var(--space-md); }

.mod-card {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

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

.mod-preview {
  width: 80px; height: 45px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.gradient-preview {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #ff6b35 0%, #f7931a 50%, #00d4aa 100%);
  animation: gradientShift 4s ease-in-out infinite;
}

.gradient-preview.alt {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #00d4aa 100%);
  animation: gradientShift 4s ease-in-out infinite reverse;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.mod-info h4 { font-size: 0.875rem; font-weight: 600; margin-bottom: 2px; }

.mod-info p { font-size: 0.75rem; color: var(--color-fg-subtle); margin-bottom: var(--space-sm); }

.mod-tags { display: flex; gap: var(--space-xs); flex-wrap: wrap; }

.tag {
  font-size: 0.625rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag:first-child { background: var(--color-yellow-dim); color: var(--color-yellow); }
.tag:last-child { background: var(--color-accent-dim); color: var(--color-accent); }

.btn-install {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  align-self: center;
}

.btn-install:hover { background: var(--color-accent); color: #000; }

.device-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.5;
  animation: glowPulse 4s ease-in-out infinite;
  border-radius: 50%;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.05); }
}

/* Hero Background Layers */
.hero-background {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.bg-layer {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  animation: float 20s ease-in-out infinite;
}

.bg-layer-1 {
  width: 600px; height: 600px;
  top: -200px; right: -200px;
  background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
  opacity: 0.15;
  animation-delay: 0s;
}

.bg-layer-2 {
  width: 500px; height: 500px;
  bottom: -150px; left: -150px;
  background: radial-gradient(circle, var(--color-orange) 0%, transparent 70%);
  opacity: 0.1;
  animation-delay: -7s;
}

.bg-layer-3 {
  width: 400px; height: 400px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--color-blue) 0%, transparent 70%);
  opacity: 0.08;
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(30px, -30px) rotate(90deg); }
  50% { transform: translate(-20px, 20px) rotate(180deg); }
  75% { transform: translate(-30px, -20px) rotate(270deg); }
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features { padding: var(--space-4xl) 0; position: relative; }

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before { transform: scaleX(1); }

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

.feature-card:hover .feature-icon {
  background: var(--color-accent);
  color: #000;
  transform: scale(1.1);
}

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

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-fg-muted);
  line-height: 1.7;
}

/* ==========================================================================
   Graphics Showcase
   ========================================================================== */
.graphics-showcase { padding: var(--space-4xl) 0; background: var(--color-bg-elevated); }

.graphics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.preview-viewport {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.viewport-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  padding: var(--space-xs);
}

.tab-btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-fg-muted);
  background: transparent;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.tab-btn:hover { color: var(--color-fg); background: var(--color-bg-card); }

.tab-btn.active {
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

.viewport-canvas {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.canvas-layer {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-slow);
  background: var(--preset-color);
  background: linear-gradient(135deg, var(--preset-color) 0%, transparent 100%);
}

.canvas-layer.active { opacity: 1; }

.canvas-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-xl);
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.8) 100%);
  pointer-events: none;
}

.preset-name { font-size: 1.5rem; font-weight: 700; margin-bottom: var(--space-xs); }

.preset-desc { font-size: 1rem; color: var(--color-fg-muted); }

.presets-list { display: flex; flex-direction: column; gap: var(--space-lg); }

.preset-category h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.preset-items { display: flex; flex-direction: column; gap: var(--space-sm); }

.preset-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preset-item:hover {
  border-color: var(--color-border-light);
  background: var(--color-bg-elevated);
  transform: translateX(4px);
}

.preset-item.active { border-color: var(--color-accent); background: var(--color-accent-dim); }

.preset-item span:first-child { font-weight: 500; }

.preset-tags { display: flex; gap: var(--space-xs); flex-wrap: wrap; }

.preset-tags .tag {
  background: var(--color-border);
  color: var(--color-fg-muted);
  font-size: 0.625rem;
}

.preset-item.active .preset-tags .tag { background: var(--color-accent-dim); color: var(--color-accent); }

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing { padding: var(--space-4xl) 0; }

.billing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.billing-label { font-size: 0.875rem; font-weight: 500; color: var(--color-fg-muted); white-space: nowrap; }

.billing-label:last-child { color: var(--color-accent); }

.save-badge {
  font-size: 0.625rem;
  font-weight: 700;
  padding: 2px 8px;
  background: var(--color-accent-dim);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  margin-left: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toggle-switch {
  position: relative;
  width: 56px; height: 28px;
  display: inline-block;
}

.toggle-switch input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--color-border);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 20px; width: 20px;
  left: 4px; bottom: 4px;
  background: white;
  border-radius: 50%;
  transition: var(--transition-base);
  box-shadow: var(--shadow-md);
}

.toggle-switch input:checked + .toggle-slider { background: var(--gradient-accent); }

.toggle-switch input:checked + .toggle-slider::before { transform: translateX(28px); }

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: stretch;
}

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

.pricing-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-lg);
}

.pricing-card.popular::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.plan-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 4px 10px;
  background: var(--gradient-accent);
  color: #000;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

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

.card-header h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: var(--space-md); }

.plan-price { display: flex; flex-direction: column; align-items: center; gap: var(--space-xs); }

.price-monthly, .price-yearly, .price-one-time {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  font-family: var(--font-mono);
}

.price-monthly span, .price-yearly span, .price-one-time span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-fg-muted);
  font-family: var(--font-sans);
}

.price-original {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-fg-subtle);
  text-decoration: line-through;
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex: 1;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: 0.9375rem;
  color: var(--color-fg-muted);
  line-height: 1.5;
}

.plan-features svg {
  width: 20px; height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.stock-notice {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-red);
  font-weight: 600;
  margin-bottom: var(--space-md);
  padding: var(--space-sm);
  background: var(--color-red-dim);
  border-radius: var(--radius-md);
}

.plan-alt {
  display: block;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-fg-subtle);
  margin-top: var(--space-md);
  transition: color var(--transition-fast);
}

.plan-alt:hover { color: var(--color-accent); }

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq { padding: var(--space-4xl) 0; background: var(--color-bg-elevated); }

.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-item:hover { border-color: var(--color-border-light); }

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  list-style: none;
  transition: color var(--transition-fast);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '';
  width: 20px; height: 20px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") center/contain no-repeat;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item[open] summary::after { transform: rotate(180deg); }

.faq-item summary:hover { color: var(--color-accent); }

.faq-item p {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-fg-muted);
  line-height: 1.7;
  font-size: 0.9375rem;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: var(--space-4xl) 0 var(--space-2xl);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

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

.footer-brand { max-width: 300px; }

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--color-fg-subtle);
  line-height: 1.6;
}

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

.footer-column h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-fg-subtle);
  margin-bottom: var(--space-md);
}

.footer-column ul { display: flex; flex-direction: column; gap: var(--space-sm); }

.footer-column a {
  font-size: 0.875rem;
  color: var(--color-fg-muted);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.copyright { font-size: 0.75rem; color: var(--color-fg-subtle); }

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

.footer-links a {
  font-size: 0.75rem;
  color: var(--color-fg-subtle);
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  animation: slideIn 0.3s ease;
  max-width: 360px;
}

.toast.removing { animation: slideOut 0.3s ease forwards; }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100px); }
}

.toast-icon {
  width: 24px; height: 24px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}

.toast-success .toast-icon { color: var(--color-accent); }
.toast-error .toast-icon { color: var(--color-red); }
.toast-info .toast-icon { color: var(--color-blue); }

.toast-message { flex: 1; font-size: 0.875rem; font-weight: 500; }

.toast-close {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-fg-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.toast-close:hover { background: var(--color-bg-elevated); color: var(--color-fg); }

/* ==========================================================================
   Background Canvas Animation
   ========================================================================== */
#bg-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: -1;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (min-width: 640px) {
  .nav-links { display: flex; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-nav { grid-template-columns: repeat(4, 1fr); }
  .faq-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .hero-container { grid-template-columns: 1fr 1fr; text-align: left; }
  .hero-content { text-align: left; }
  .hero-stats { justify-content: flex-start; }
  .hero-actions { justify-content: flex-start; }
  .hero-visual { display: block; }
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-card.popular { transform: scale(1.02); }
  .pricing-card.popular:hover { transform: scale(1.02) translateY(-4px); }
  .graphics-grid { grid-template-columns: 1fr 320px; }
}

@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  :root { --container-padding: 2rem; }
}

@media (max-width: 767px) {
  .nav-links { display: none; }
  .btn-ghost { display: none; }
  .hero { min-height: auto; padding-bottom: var(--space-3xl); }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.fg-muted { color: var(--color-fg-muted); }