/* ==========================================================================
   SketchPing Master Stylesheet
   Zero framework, pure CSS design system.
   Palette derived from lib/src/theme.dart and docs/iconography.md.
   House style: No em dashes. Clean, warm, restrained typography.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Theme Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Light Palette */
  --color-paper: #FCFBF7;
  --color-paper-subtle: #F5F2EA;
  --color-surface: #FFFFFF;
  --color-surface-elevated: #FFFFFF;
  --color-surface-hover: #F8FAFC;
  
  --color-ink: #1B2233;
  --color-ink-muted: #667085;
  --color-ink-faint: #9AA5B8;
  
  --color-border: #D8DCE6;
  --color-border-subtle: #E8ECF2;
  
  /* Brand Tokens */
  --color-action: #4E5BD9;
  --color-action-hover: #3E4BC4;
  --color-action-active: #333FA8;
  --color-action-soft: #E9EBFF;
  --color-on-action: #FFFFFF;
  
  --color-amber: #F4B942;
  --color-amber-deep: #B97800;
  --color-amber-soft: #FFF2D4;
  
  --color-coral: #F06A6A;
  --color-coral-soft: #FFECEA;
  
  --color-green: #4BAA7B;
  --color-green-soft: #EAF7EF;
  
  --color-danger: #B42318;
  --color-danger-soft: #FFECEA;

  /* Elevation & Shape */
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 4px rgba(27, 34, 51, 0.04);
  --shadow-card: 0 6px 20px rgba(27, 34, 51, 0.05), 0 1px 3px rgba(27, 34, 51, 0.03);
  --shadow-floating: 0 16px 36px rgba(27, 34, 51, 0.08), 0 4px 12px rgba(27, 34, 51, 0.04);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Layout */
  --container-max: 1100px;
  --header-height: 72px;
  
  color-scheme: light dark;
}

[data-theme="dark"] {
  --color-paper: #11151F;
  --color-paper-subtle: #171D2B;
  --color-surface: #1B2233;
  --color-surface-elevated: #222B3F;
  --color-surface-hover: #263148;
  
  --color-ink: #F2F5FB;
  --color-ink-muted: #95A1B8;
  --color-ink-faint: #5E6C84;
  
  --color-border: #2B354C;
  --color-border-subtle: #20283A;
  
  --color-action: #6370F7;
  --color-action-hover: #7B86FF;
  --color-action-active: #505EE0;
  --color-action-soft: rgba(99, 112, 247, 0.18);
  --color-on-action: #FFFFFF;
  
  --color-amber: #F6C358;
  --color-amber-deep: #D48E00;
  --color-amber-soft: rgba(246, 195, 88, 0.16);
  
  --color-coral: #F27C7C;
  --color-coral-soft: rgba(242, 124, 124, 0.16);
  
  --color-green: #59BC8C;
  --color-green-soft: rgba(89, 188, 140, 0.16);
  
  --color-danger: #D94638;
  --color-danger-soft: rgba(217, 70, 56, 0.18);

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-floating: 0 16px 36px rgba(0, 0, 0, 0.5), 0 4px 12px rgba(0, 0, 0, 0.3);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-paper);
  color: var(--color-ink);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

a {
  color: var(--color-action);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

button, input, textarea {
  font: inherit;
}

/* --------------------------------------------------------------------------
   3. Layout & Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 780px;
}

main {
  flex: 1;
}

/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(252, 251, 247, 0.84);
  border-bottom: 1px solid rgba(216, 220, 230, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

[data-theme="dark"] .site-header {
  background-color: rgba(17, 21, 31, 0.84);
  border-bottom: 1px solid rgba(43, 53, 76, 0.7);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
}

.brand-wordmark {
  height: 34px;
  width: auto;
  display: block;
}

.footer-brand .brand-wordmark {
  height: 28px;
}

.wordmark-dark {
  display: none;
}

[data-theme="dark"] .wordmark-light {
  display: none;
}

[data-theme="dark"] .wordmark-dark {
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.nav-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink-muted);
  transition: color 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-ink);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: var(--color-paper-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.theme-toggle-btn:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-ink-muted);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-ink);
  width: 40px;
  height: 40px;
  padding: 8px;
  cursor: pointer;
}

.mobile-nav-toggle svg {
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   5. Accessibility, Utilities & Focus States
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-action);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   6. Buttons, Badges & Interactive States
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.12s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.15s ease;
  border: 1px solid transparent;
  white-space: nowrap;
  min-height: 48px;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--color-action);
  color: var(--color-on-action);
  box-shadow: 0 4px 14px rgba(78, 91, 217, 0.28);
}

.btn-primary:hover {
  background-color: var(--color-action-hover);
  color: var(--color-on-action);
  box-shadow: 0 6px 18px rgba(78, 91, 217, 0.36);
  transform: translateY(-1px);
}

.btn-primary:active {
  background-color: var(--color-action-active);
  transform: scale(0.98);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-ink);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-paper-subtle);
  border-color: var(--color-ink-muted);
  color: var(--color-ink);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: scale(0.98);
}

.btn-lg {
  padding: 16px 30px;
  font-size: 16px;
  border-radius: var(--radius-md);
  min-height: 52px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  background-color: var(--color-action-soft);
  color: var(--color-action);
  border: 1px solid rgba(78, 91, 217, 0.16);
  margin-bottom: 20px;
}

.badge-tag svg {
  width: 14px;
  height: 14px;
  fill: var(--color-amber);
}

.step-pill {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--color-action);
  background-color: var(--color-action-soft);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  width: fit-content;
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 64px 0 56px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 760px;
  margin: 0 auto;
}

.hero-title {
  font-size: 46px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -1.2px;
  color: var(--color-ink);
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 19px;
  line-height: 1.55;
  color: var(--color-ink-muted);
  margin-bottom: 32px;
  max-width: 660px;
  margin-left: auto;
  margin-right: auto;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* Hero Canvas Card Preview */
.hero-preview {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.preview-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-floating);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.preview-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 42px rgba(27, 34, 51, 0.1), 0 6px 16px rgba(27, 34, 51, 0.05);
}

.preview-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-ink-muted);
  background: var(--color-paper-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.preview-badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-green);
  box-shadow: 0 0 0 3px var(--color-green-soft);
  animation: pulseGreen 2.2s infinite ease-in-out;
}

@keyframes pulseGreen {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 3px var(--color-green-soft);
  }
  50% {
    transform: scale(1.15);
    box-shadow: 0 0 0 5px var(--color-green-soft);
  }
}

.interactive-doodle-box {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1 / 0.85;
  background-color: var(--color-paper);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 24px;
}

.doodle-illustration {
  width: 100%;
  height: 100%;
}

/* Kinetic Sparkle Animation */
@keyframes sparkleFloat {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-5px) scale(1.1);
  }
}

.sparkle-accent {
  animation: sparkleFloat 3s ease-in-out infinite;
  transform-origin: 320px 90px;
  will-change: transform;
}

.preview-caption {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink-muted);
}

/* --------------------------------------------------------------------------
   7. Features Grid & Cards
   -------------------------------------------------------------------------- */
.section {
  padding: 72px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px auto;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--color-ink-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.modes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-floating);
  border-color: var(--color-action);
}

.feature-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-action-soft);
  color: var(--color-action);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon-box.amber {
  background-color: var(--color-amber-soft);
  color: var(--color-amber-deep);
}

.feature-icon-box.coral {
  background-color: var(--color-coral-soft);
  color: var(--color-coral);
}

.feature-icon-box.green {
  background-color: var(--color-green-soft);
  color: var(--color-green);
}

.feature-icon-box svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 15px;
  color: var(--color-ink-muted);
  line-height: 1.55;
}

/* Shop & Reels Two-Column Showcase */
.shop-showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.showcase-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.showcase-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
}

.showcase-card p {
  font-size: 15px;
  color: var(--color-ink-muted);
  line-height: 1.6;
}

.pill-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.tool-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  background-color: var(--color-paper-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   8. Spot-Art & Gameplay Gallery Section
   -------------------------------------------------------------------------- */
.art-showcase-section {
  background-color: var(--color-paper-subtle);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.spot-art-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.spot-art-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 18px;
  text-align: center;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease, border-color 0.2s ease;
}

.spot-art-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-floating);
  border-color: var(--color-action);
}

.spot-art-glyph {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-paper);
  border-radius: var(--radius-md);
  padding: 8px;
  margin-bottom: 4px;
  border: 1px solid var(--color-border-subtle);
}

.spot-art-glyph svg {
  width: 64px;
  height: 64px;
}

.spot-art-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-ink);
}

.spot-art-desc {
  font-size: 13px;
  color: var(--color-ink-muted);
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   9. Waitlist / Beta Sign-up Form
   -------------------------------------------------------------------------- */
.waitlist-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}

.waitlist-card h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.waitlist-card p {
  font-size: 16px;
  color: var(--color-ink-muted);
  margin-bottom: 28px;
}

.waitlist-form {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
}

.waitlist-input {
  flex: 1;
  padding: 13px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-size: 15px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.waitlist-input:focus {
  outline: none;
  border-color: var(--color-action);
  box-shadow: 0 0 0 3px var(--color-action-soft);
}

.form-status {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  display: none;
}

.form-status.success {
  display: block;
  color: var(--color-green);
}

.form-status.error {
  display: block;
  color: var(--color-danger);
}

/* --------------------------------------------------------------------------
   10. Legal, Support, and Content Pages
   -------------------------------------------------------------------------- */
.page-header {
  padding: 56px 0 36px 0;
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: 40px;
}

.page-title {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.page-meta {
  font-size: 14px;
  color: var(--color-ink-muted);
}

.content-body {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-ink);
  padding-bottom: 64px;
}

.content-body h2 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--color-ink);
  margin-top: 36px;
  margin-bottom: 14px;
}

.content-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-ink);
  margin-top: 24px;
  margin-bottom: 10px;
}

.content-body p {
  margin-bottom: 18px;
}

.content-body ul, .content-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.content-body li {
  margin-bottom: 8px;
}

.content-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.callout-box {
  background-color: var(--color-paper-subtle);
  border-left: 4px solid var(--color-action);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px;
  margin: 24px 0;
}

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

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  background: none;
  border: none;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  fill: var(--color-ink-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 22px 18px 22px;
  color: var(--color-ink-muted);
  font-size: 15px;
  line-height: 1.6;
  display: none;
}

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

/* --------------------------------------------------------------------------
   11. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border-subtle);
  background-color: var(--color-paper);
  padding: 56px 0 40px 0;
  font-size: 14px;
  color: var(--color-ink-muted);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand p {
  margin-top: 12px;
  line-height: 1.5;
}

.footer-nav-groups {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-group h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-ink);
  margin-bottom: 14px;
}

.footer-group ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-group a {
  color: var(--color-ink-muted);
  transition: color 0.15s ease;
}

.footer-group a:hover {
  color: var(--color-ink);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   12. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .features-grid,
  .modes-grid,
  .shop-showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .spot-art-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  
  .hero-title {
    font-size: 34px;
    letter-spacing: -0.8px;
  }
  
  .hero-subtitle {
    font-size: 17px;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-paper);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    box-shadow: var(--shadow-floating);
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .features-grid,
  .modes-grid,
  .shop-showcase-grid {
    grid-template-columns: 1fr;
  }
  
  .waitlist-form {
    flex-direction: column;
  }
  
  .footer-top {
    flex-direction: column;
  }
  
  .footer-nav-groups {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 480px) {
  .hero-section {
    padding: 40px 0;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .spot-art-grid {
    grid-template-columns: 1fr;
  }
  
  .preview-card {
    padding: 20px 16px;
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* --------------------------------------------------------------------------
   14. Reduced Motion Safety (Accessibility)
   -------------------------------------------------------------------------- */
@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;
  }
}