/* ========================================
   WORLDVIEW CUBE - Production Stylesheet
   Clean, Modern Design System
   ======================================== */

/* ============ CSS CUSTOM PROPERTIES ============ */
:root {
  /* Color Palette - Dark Mode */
  --color-bg-primary: #0d1117;
  --color-bg-secondary: #161b22;
  --color-bg-tertiary: #21262d;
  --color-bg-elevated: #1c2128;
  --color-bg-hover: #30363d;
  
  /* Accent Colors */
  --color-accent-primary: #58a6ff;
  --color-accent-secondary: #79c0ff;
  --color-accent-success: #3fb950;
  --color-accent-warning: #d29922;
  --color-accent-glow: rgba(88, 166, 255, 0.15);
  
  /* Text Colors */
  --color-text-primary: #f0f6fc;
  --color-text-secondary: #c9d1d9;
  --color-text-muted: #8b949e;
  --color-text-faint: #6e7681;
  
  /* Border Colors */
  --color-border-default: #30363d;
  --color-border-muted: #21262d;
  --color-border-accent: rgba(88, 166, 255, 0.4);
  
  /* 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 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(88, 166, 255, 0.2);
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', sans-serif;
  --font-family-mono: 'SF Mono', 'Fira Code', 'Monaco', 'Consolas', monospace;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* Light Mode Override */
@media (prefers-color-scheme: light) {
  :root {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f6f8fa;
    --color-bg-tertiary: #eaeef2;
    --color-bg-elevated: #ffffff;
    --color-bg-hover: #e8ebee;
    
    --color-accent-primary: #0969da;
    --color-accent-secondary: #0550ae;
    --color-accent-success: #1a7f37;
    --color-accent-glow: rgba(9, 105, 218, 0.1);
    
    --color-text-primary: #1f2328;
    --color-text-secondary: #424a53;
    --color-text-muted: #656d76;
    --color-text-faint: #8c959f;
    
    --color-border-default: #d0d7de;
    --color-border-muted: #e8ebee;
    --color-border-accent: rgba(9, 105, 218, 0.4);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(9, 105, 218, 0.15);
  }
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

strong {
  font-weight: 600;
  color: var(--color-accent-primary);
}

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

a:hover {
  color: var(--color-accent-secondary);
  text-decoration: underline;
}

/* ============ CONTAINER ============ */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* ============ HEADER ============ */
header {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
  border-bottom: 1px solid var(--color-border-muted);
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-sm);
}

header p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* ============ SECTIONS ============ */
section {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-muted);
}

section h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

/* ============ ABOUT SECTION ============ */
#about {
  background: var(--color-bg-secondary);
}

#about p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

#about ul {
  list-style: none;
  padding: 0;
  margin: var(--spacing-lg) 0;
}

#about li {
  padding: var(--spacing-md) 0;
  padding-left: var(--spacing-xl);
  position: relative;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-muted);
}

#about li:last-child {
  border-bottom: none;
}

#about li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-accent-primary);
  font-weight: 600;
}

.axes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.axis-box {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.axis-box:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
}

.axis-box strong {
  display: block;
  color: var(--color-accent-primary);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
}

.axis-box p {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-muted);
}

.axis-box p:last-child {
  margin-bottom: 0;
}

/* ============ QUIZ SECTION ============ */
#survey {
  background: var(--color-bg-secondary);
}

.question {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-lg);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  position: relative;
}

.question:hover {
  border-color: var(--color-border-accent);
}

.question.answered {
  border-left: 3px solid var(--color-accent-success);
}

.question.answered::after {
  content: "✓";
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  color: var(--color-accent-success);
  font-size: 1rem;
  font-weight: 600;
}

.question-number {
  font-weight: 600;
  color: var(--color-accent-primary);
  font-size: 0.875rem;
}

.question-text {
  display: block;
  margin: var(--spacing-sm) 0 var(--spacing-md);
  font-size: 1rem;
  color: var(--color-text-primary);
  line-height: 1.5;
}

.options {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.option-label {
  flex: 1;
  min-width: 100px;
  text-align: center;
  background: var(--color-bg-elevated);
  border: 2px solid var(--color-border-default);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.option-label:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-accent);
  color: var(--color-text-secondary);
}

input[type="radio"] {
  display: none;
}

input[type="radio"]:checked + .option-text {
  font-weight: 600;
  color: var(--color-accent-success);
}

input[type="radio"]:checked + .option-text::before {
  content: "✓ ";
}

.option-label:has(input:checked) {
  background: var(--color-bg-hover);
  border-color: var(--color-accent-success);
  color: var(--color-accent-success);
}

/* ============ PROGRESS BAR ============ */
.progress-container {
  width: 100%;
  height: 4px;
  background: var(--color-bg-tertiary);
  border-radius: 2px;
  margin: var(--spacing-lg) 0;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-success));
  width: 0%;
  transition: width var(--transition-normal);
  border-radius: 2px;
}

/* ============ BUTTONS ============ */
button {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-family);
  background: var(--color-accent-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.1);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.button-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

/* Share Buttons */
.share-actions {
  text-align: center;
  margin-top: var(--spacing-xl);
}

.share-prompt {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  font-size: 0.9rem;
}

.share-buttons-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
}

.share-btn {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: white;
  transition: all var(--transition-fast);
}

.share-btn-instagram {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.share-btn-tiktok {
  background: linear-gradient(45deg, #00f2ea, #ff0050);
}

.share-btn-x {
  background: #000000;
  border: 1px solid var(--color-border-default);
}

.share-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* Share Section (Dynamic) */
.share-section {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xl);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  text-align: center;
}

.share-section h3 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
  font-weight: 600;
}

.share-section p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
}

.copy-link {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-family-mono);
  font-size: 0.85rem;
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-lg);
  word-break: break-all;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-link:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-accent-primary);
}

.share-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
}

.share-buttons .share-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-default);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.share-buttons .share-btn:hover {
  background: var(--color-accent-primary);
  color: white;
  border-color: var(--color-accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ============ RESULT SECTION ============ */
#result {
  text-align: center;
  display: none;
}

.octant-name {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent-success);
  margin: var(--spacing-lg) 0;
  letter-spacing: -0.01em;
}

.coordinates-display {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) 0;
  font-family: var(--font-family-mono);
  font-size: 1rem;
}

.coordinates-display span {
  color: var(--color-accent-success);
  font-weight: 600;
}

.description-text {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin: var(--spacing-lg) 0;
  font-style: italic;
}

/* ============ 3D CANVAS ============ */
#canvas-container {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--spacing-lg) 0;
  min-height: 500px;
  box-shadow: var(--shadow-md);
}

#canvas {
  width: 100%;
  height: 100%;
}

/* ============ LEADER INFO POPUP ============ */
#popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  z-index: 999;
  backdrop-filter: blur(3px);
}

#leader-info-popup {
  position: fixed;
  display: none;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  padding-top: 50px;
  z-index: 1000;
  color: var(--color-text-primary);
  font-family: var(--font-family);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  max-height: 80vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: calc(100% - 32px);
  max-width: 400px;
}

#leader-info-popup .popup-close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  color: var(--color-text-secondary);
  font-size: 18px;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

#leader-info-popup .popup-close-btn:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

#leader-info-popup .popup-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

#leader-info-popup .popup-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  margin-right: 14px;
  flex-shrink: 0;
}

#leader-info-popup .popup-name {
  margin: 0;
  font-size: 1.4em;
  line-height: 1.2;
  font-weight: 600;
}

#leader-info-popup .popup-stats {
  background: var(--color-bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-border-muted);
}

#leader-info-popup .popup-octant {
  font-size: 0.95em;
  color: var(--color-accent-primary);
  margin-bottom: 10px;
  font-weight: 600;
  text-align: center;
}

#leader-info-popup .popup-coords {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  text-align: center;
}

#leader-info-popup .popup-coord-label {
  color: var(--color-text-muted);
  font-size: 0.7em;
  margin-bottom: 4px;
  text-transform: uppercase;
}

#leader-info-popup .popup-coord-value {
  font-weight: 600;
  font-size: 0.9em;
}

#leader-info-popup .popup-coord-economic { color: var(--color-accent-success); }
#leader-info-popup .popup-coord-social { color: var(--color-accent-warning); }
#leader-info-popup .popup-coord-spiritual { color: #a78bfa; }

#leader-info-popup .popup-description {
  margin: 0;
  font-size: 0.9em;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============ LEGEND ============ */
#legend-container {
  margin-top: var(--spacing-xl);
  text-align: center;
}

.toggle-legend-btn {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  color: var(--color-text-secondary);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.toggle-legend-btn:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-accent);
}

.toggle-legend-btn .toggle-icon {
  transition: transform var(--transition-normal);
}

.toggle-legend-btn[aria-expanded="true"] .toggle-icon {
  transform: rotate(180deg);
}

#legend {
  margin: var(--spacing-md) auto 0;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  display: none;
  max-height: 350px;
  overflow-y: auto;
}

#legend.visible {
  display: block;
  animation: slideDown 0.3s ease;
}

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

#legend h3 {
  margin-top: 0;
  font-size: 1rem;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-muted);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

#legend-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--spacing-sm);
}

#legend-list li {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

#legend-list li:hover {
  background: var(--color-bg-hover);
  transform: translateX(2px);
}

/* ============ AD PLACEHOLDERS ============ */
.ezoic-ad {
  min-height: 90px;
  background: var(--color-bg-tertiary);
  border: 1px dashed var(--color-border-muted);
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-faint);
  font-size: 0.75rem;
}

.ezoic-ad-header { max-width: 728px; }
.ezoic-ad-mid { max-width: 300px; min-height: 250px; }
.ezoic-ad-footer { max-width: 728px; }

.ad-banner {
  margin: var(--spacing-xl) auto;
  max-width: 728px;
  min-height: 90px;
  background: var(--color-bg-tertiary);
  border: 1px dashed var(--color-border-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--color-text-faint);
}

/* ============ DONATION BANNER ============ */
.donation-banner {
  margin: var(--spacing-xl) auto;
  max-width: 600px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  position: relative;
}

.donation-banner.hidden {
  display: none;
}

.close-donation {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.close-donation:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

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

.donation-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.donation-text {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
  line-height: 1.6;
}

.donation-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

.donation-link {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-weight: 600;
  font-size: 0.9rem;
}

.donation-link.primary {
  background: var(--color-accent-primary);
  color: white;
}

.donation-link.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.donation-link.secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-accent-primary);
  border: 1px solid var(--color-border-default);
}

.donation-link.secondary:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-accent);
}

/* ============ FLOATING SUPPORT BUTTON ============ */
.floating-support-btn {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 999;
}

.support-button {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #ff6b6b, #ee5a5a);
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.support-button:hover {
  transform: scale(1.1);
}

.support-menu {
  position: absolute;
  bottom: 70px;
  right: 0;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
  min-width: 160px;
  box-shadow: var(--shadow-lg);
}

.support-menu.hidden {
  display: none;
}

.support-menu-item {
  display: block;
  padding: var(--spacing-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  border-bottom: 1px solid var(--color-border-muted);
  font-size: 0.9rem;
}

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

.support-menu-item:hover {
  background: var(--color-bg-hover);
  color: var(--color-accent-primary);
}

/* ============ FOOTER ============ */
footer {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  border-top: 1px solid var(--color-border-muted);
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-top: var(--spacing-2xl);
  background: var(--color-bg-secondary);
}

footer a {
  color: var(--color-accent-primary);
}

footer p {
  margin-bottom: var(--spacing-sm);
}

/* ============ LANGUAGE SELECTOR ============ */
.lang-selector {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 1000;
  display: flex;
  gap: 2px;
  background: var(--color-bg-elevated);
  padding: var(--spacing-xs);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-default);
  box-shadow: var(--shadow-sm);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-family);
  transition: all var(--transition-fast);
  min-height: 32px;
}

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

.lang-btn.active {
  background: var(--color-accent-primary);
  color: #ffffff;
}

.lang-btn:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* ============ SKIP LINKS ============ */
.skip-link {
  position: absolute;
  top: -50px;
  left: 0;
  background: var(--color-accent-primary);
  color: #ffffff;
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: 10000;
  text-decoration: none;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) 0;
  transition: top var(--transition-normal);
}

.skip-link:focus {
  top: 0;
}

/* ============ LOADING STATE ============ */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-border-default);
  border-top-color: var(--color-accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
  }

  header h1 {
    font-size: 1.75rem;
  }

  header p {
    font-size: 1rem;
  }

  section {
    padding: var(--spacing-lg);
  }

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

  .options {
    flex-direction: column;
  }

  .option-label {
    min-width: 100%;
  }

  .octant-name {
    font-size: 1.5rem;
  }

  #canvas-container {
    min-height: 350px;
  }

  #legend-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .share-buttons-row {
    flex-direction: column;
  }

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

  .button-group {
    flex-direction: column;
  }

  button {
    width: 100%;
  }

  .lang-selector {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 2px;
  }

  .lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.7rem;
    min-height: 28px;
  }

  .floating-support-btn {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
  }

  .support-button {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }

  .donation-banner {
    padding: var(--spacing-lg);
    margin: var(--spacing-md) auto;
  }

  .donation-links {
    flex-direction: column;
  }

  .donation-link {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  header {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  header h1 {
    font-size: 1.5rem;
  }

  section {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
  }

  .question {
    padding: var(--spacing-md);
  }

  #canvas-container {
    min-height: 280px;
  }

  .octant-name {
    font-size: 1.25rem;
  }
}

/* ============ ACCESSIBILITY ============ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

*:focus {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

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

@media (forced-colors: active) {
  .option-label {
    border: 2px solid CanvasText;
  }
  
  .option-label:has(input:checked) {
    background: Highlight;
    color: HighlightText;
  }
  
  button {
    border: 2px solid CanvasText;
  }
}

/* ============ PRINT STYLES ============ */
@media print {
  body {
    background: white;
    color: black;
  }
  
  section {
    background: white;
    border: 1px solid #ccc;
    box-shadow: none;
  }
  
  .lang-selector,
  .floating-support-btn,
  .ezoic-ad,
  .ad-banner,
  #canvas-container,
  .share-actions,
  .donation-banner {
    display: none !important;
  }
  
  header {
    background: none;
    border-bottom: 2px solid #333;
  }
  
  header h1 {
    color: #333;
  }
}