/* ==============================================================================
   DevPet — Web Showcase & Interactive Simulator Styles
   Apple Human Interface Guidelines (HIG) Minimalist System (Light Default & Dark)
   ============================================================================== */

:root {
  /* Light Theme (Default per repository rules) */
  --bg-primary: #FAFAFC;
  --bg-secondary: #FFFFFF;
  --bg-surface: #F2F3F7;
  --bg-surface-elevated: #FFFFFF;

  --text-primary: #1D1D1F;
  --text-secondary: #6E6E73;
  --text-tertiary: #86868B;

  --accent-color: #0071E3;
  --accent-hover: #0077ED;
  --accent-light: rgba(0, 113, 227, 0.08);

  --color-green: #34C759;
  --color-orange: #FF9500;
  --color-red: #FF3B30;
  --color-purple: #AF52DE;
  --color-cyan: #00C7BE;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.16);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.08);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', "SF Mono", Menlo, Monaco, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

body.dark-theme {
  --bg-primary: #0D0E11;
  --bg-secondary: #16181D;
  --bg-surface: #1E2128;
  --bg-surface-elevated: #242831;

  --text-primary: #F5F5F7;
  --text-secondary: #A1A1A6;
  --text-tertiary: #6E6E73;

  --accent-color: #2997FF;
  --accent-hover: #47A3FF;
  --accent-light: rgba(41, 151, 255, 0.12);

  --border-subtle: rgba(255, 255, 255, 0.10);
  --border-hover: rgba(255, 255, 255, 0.22);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 252, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.3s ease, border-color 0.3s ease;
}

body.dark-theme .site-header {
  background: rgba(13, 14, 17, 0.88);
}

.nav-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 7px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
}

.nav-icon {
  border-radius: 5px;
  object-fit: cover;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.logo-text {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.version-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--accent-color);
  background: var(--accent-light);
  padding: 1px 6px;
  border-radius: var(--radius-full);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-link {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.theme-btn:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-hover);
}

.sun-icon { display: block; }
.moon-icon { display: none; }
body.dark-theme .sun-icon { display: none; }
body.dark-theme .moon-icon { display: block; }

.lang-select {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}

.lang-select:hover {
  border-color: var(--border-hover);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.25);
}

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

.btn-secondary:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
  padding: 64px 0 40px;
  text-align: center;
  position: relative;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-green);
  box-shadow: 0 0 8px rgba(52, 199, 89, 0.6);
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
  font-size: 46px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 820px;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 19px;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.55;
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-meta {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 48px;
}

/* Simulator Stage */
.display-stage {
  width: 100%;
  max-width: 920px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: left;
  margin-bottom: 20px;
}

.stage-menubar {
  background: var(--bg-surface);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.stage-menubar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.traffic-dots {
  display: flex;
  gap: 6px;
  margin-right: 4px;
}

.traffic-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.traffic-red { background: #FF5F56; }
.traffic-yellow { background: #FFBD2E; }
.traffic-green { background: #27C93F; }

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-green);
}

.stage-body {
  padding: 28px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
}

/* Pixel Canvas Box */
.canvas-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
}

#petCanvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  width: 160px;
  height: 160px;
  background: transparent;
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.canvas-controls {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.mood-badge {
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pet-action-btn {
  width: 100%;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.pet-action-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: var(--accent-light);
}

/* Stage Info Column */
.stage-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.pet-name-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.pet-level-badge {
  font-size: 12px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--accent-color);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* Species Tabs */
.species-tabs {
  display: flex;
  gap: 8px;
  background: var(--bg-surface);
  padding: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.species-tab {
  flex: 1;
  padding: 6px 8px;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  border-radius: 6px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.species-tab.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* XP Bar */
.xp-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.xp-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.progress-track {
  width: 100%;
  height: 8px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

.xp-fill {
  background: linear-gradient(90deg, #0071E3, #00C7BE);
}

/* Vitals Grid */
.vitals-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.vital-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.vital-head {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.hunger-fill { background: var(--color-orange); }
.energy-fill { background: var(--color-green); }
.happiness-fill { background: var(--color-purple); }

/* Badges row */
.stage-meta-badges {
  display: flex;
  gap: 12px;
  padding-top: 6px;
}

.meta-chip {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

/* Section Shared */
.section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-bottom: 12px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  line-height: 1.25;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Geek Pantry Grid (8 Items in 4x2 Grid) */
.pantry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.snack-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.snack-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.snack-icon-bubble {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 16px;
}

.snack-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.snack-boost-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 18px;
  min-height: 38px;
}

.feed-snack-btn {
  width: 100%;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.feed-snack-btn:hover {
  background: var(--accent-color);
  color: #FFFFFF;
  border-color: var(--accent-color);
}

/* Git Commit Simulator Console */
.terminal-window {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.terminal-titlebar {
  background: var(--bg-surface);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-title {
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-secondary);
}

.terminal-content {
  padding: 24px;
}

.terminal-input-row {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.terminal-prompt {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-green);
  display: flex;
  align-items: center;
}

.terminal-input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}

.terminal-input:focus {
  border-color: var(--accent-color);
  background: var(--bg-surface-elevated);
}

.preset-chips-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.preset-chips-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.chips-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.git-preset-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.git-preset-chip:hover {
  background: var(--accent-light);
  color: var(--accent-color);
  border-color: var(--accent-color);
}

.git-digest-stream {
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
}

.stream-heading {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.git-commit-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.git-commit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
}

.git-commit-info {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.git-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  background: rgba(52, 199, 89, 0.15);
  color: var(--color-green);
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}

.git-commit-msg {
  font-family: var(--font-mono);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.git-commit-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.git-xp-badge {
  font-weight: 700;
  font-size: 11px;
  color: var(--accent-color);
  background: var(--accent-light);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.git-time {
  font-size: 11px;
  color: var(--text-tertiary);
}

/* CPU Telemetry Simulator */
.cpu-control-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  max-width: 800px;
  margin: 0 auto;
}

.slider-container {
  margin-bottom: 24px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.cpu-range-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, #34C759 0%, #FF9500 65%, #FF3B30 100%);
  outline: none;
}

.cpu-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid var(--accent-color);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: transform 0.1s;
}

.cpu-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.cpu-presets-row {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.cpu-preset-btn {
  flex: 1;
  min-width: 120px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.cpu-preset-btn:hover {
  background: var(--accent-light);
  color: var(--accent-color);
  border-color: var(--accent-color);
}

.cpu-status-msg {
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  min-height: 20px;
}

/* Buddy Modes */
.buddy-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 36px;
}

.buddy-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.buddy-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.buddy-card-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.buddy-card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.buddy-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Floating Buddy HUD Widget */
.floating-buddy-hud {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.12);
  transform: translateY(120px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

body.dark-theme .floating-buddy-hud {
  background: rgba(26, 28, 34, 0.88);
}

.floating-buddy-hud.visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

#miniBuddyCanvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  width: 56px;
  height: 56px;
}

.buddy-hud-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.buddy-hud-name {
  font-size: 14px;
  font-weight: 700;
}

.buddy-hud-status {
  font-size: 12px;
  color: var(--text-secondary);
}

.buddy-hud-close {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  margin-left: 8px;
}

.buddy-hud-close:hover {
  color: var(--text-primary);
}

/* Terminal CLI Code Blocks */
.cli-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.cli-code-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-top: 10px;
}

.cli-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
}

.copy-cmd-btn {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.copy-cmd-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.copy-cmd-btn.copied {
  background: var(--color-green);
  color: #FFFFFF;
  border-color: var(--color-green);
}

/* Architecture Cards */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.arch-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.arch-layer-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 6px;
}

.arch-card-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.arch-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Specs Grid */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.spec-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.spec-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.spec-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

/* FAQ Section */
.faq-section {
  padding: 80px 0;
}

.faq-section .section-head {
  margin-bottom: 32px;
}

.faq-accordion {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.faq-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  background: transparent;
  border: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: var(--transition);
}

.faq-trigger span {
  flex: 1;
  text-align: left;
}

.faq-trigger .chevron {
  transition: transform 0.25s ease;
  color: var(--text-tertiary);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-trigger .chevron {
  transform: rotate(180deg);
}

.faq-content {
  display: none;
  padding: 0 22px 18px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  text-align: left;
}

.faq-item.open .faq-content {
  display: block;
}

/* Download CTA Section */
.download-section {
  padding: 80px 0;
  text-align: center;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

.download-badges-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.appstore-badge-link img {
  height: 48px;
  transition: transform 0.2s ease;
}

.appstore-badge-link:hover img {
  transform: scale(1.04);
}

/* Footer */
.site-footer {
  padding: 32px 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-primary);
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-lang-select {
  font-size: 12px;
  padding: 4px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.footer-copy {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* Floating Toast */
.hud-floating-toast {
  position: fixed;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: #1D1D1F;
  color: #FFFFFF;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  z-index: 10000;
  animation: slideUpToast 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

body.dark-theme .hud-floating-toast {
  background: #F5F5F7;
  color: #1D1D1F;
}

.hud-floating-toast.fade-out {
  opacity: 0;
  transform: translateX(-50%) translateY(10px);
  transition: all 0.4s ease;
}

@keyframes slideUpToast {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Responsive Media Queries */
@media (max-width: 860px) {
  .site-nav { display: none; }
  .hero-title { font-size: 34px; }
  .stage-body { grid-template-columns: 1fr; }
  .pantry-grid { grid-template-columns: repeat(2, 1fr); }
  .buddy-cards-grid { grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr 1fr; }
  .specs-grid { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  .hero-title { font-size: 28px; }
  .vitals-grid { grid-template-columns: 1fr; }
  .pantry-grid { grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .hero-cta-group { flex-direction: column; width: 100%; }
  .btn { width: 100%; justify-content: center; }
}