/* Complete redesign with modern aesthetic using specified brand colors */

:root {
  color-scheme: light dark;

  /* Brand Colors */
  --color-cyan: #48c9da;
  --color-orange: #fb985c;
  --color-purple: #996fc0;

  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-700: #374151;
  --color-gray-900: #111827;
  --color-black: #000000;

  /* Semantic Colors */
  --background-primary: var(--color-white);
  --background-secondary: var(--color-gray-50);
  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-700);
  --text-muted: #6b7280;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Typography */
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", Meiryo, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  margin: 0;
  min-height: 100vh;
  background: var(--background-primary);
  color: var(--text-primary);
  overflow-x: hidden;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  position: relative;
}

/* AR Launcher (hidden) */
model-viewer.ar-launcher {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
}

/* Main Content */
.content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(var(--spacing-xs) / 3);
  max-width: 1200px;
  width: 100%;
  text-align: center;
}

/* Header */
.header {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 0;
}

.logo {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 800;
  color: var(--color-cyan);
  letter-spacing: -0.02em;
}

/* Hero Section */
.hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(var(--spacing-xs) / 2);
  max-width: 800px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: rgba(72, 201, 218, 0.12);
  border: 1px solid rgba(72, 201, 218, 0.3);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-cyan);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.title {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.title-line {
  display: block;
}

.title-highlight {
  color: var(--color-orange);
  font-size: 1.1em;
}

.subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-secondary);
  font-weight: 500;
  max-width: 600px;
}

/* Visual Showcase */
.visual-showcase {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 0;
}

.showcase-card {
  position: relative;
  width: min(100%, 480px);
  padding: var(--spacing-sm);
  background: var(--color-white);
  border-radius: 32px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.05), 0 20px 60px -10px rgba(0, 0, 0, 0.1), 0 40px 80px -20px
    rgba(72, 201, 218, 0.15);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.showcase-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.05), 0 30px 80px -10px rgba(0, 0, 0, 0.15), 0 50px 100px -20px
    rgba(72, 201, 218, 0.25);
}

.card-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(72, 201, 218, 0.1);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.showcase-card:hover .card-glow {
  opacity: 1;
}

.stage-visual {
  position: relative;
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  z-index: 1;
}

/* CTA Section */
.cta-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  width: 100%;
  max-width: 500px;
}

.variant-switch {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin: 12px 0;
  flex-wrap: wrap;
}

.variant-btn {
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--color-gray-200);
  border-radius: 0.6rem;
  background: var(--color-white);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.variant-btn.is-active {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.variant-btn:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 2px;
}

.variant-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.primary-button {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--color-white);
  background-color: var(--color-cyan);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 12px 40px -8px rgba(72, 201, 218, 0.4);
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  position: relative;
  overflow: hidden;
  font-family: inherit;
}

.primary-button:hover {
  background-color: var(--color-orange);
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 16px 50px -8px rgba(251, 152, 92, 0.4);
}

.primary-button:active {
  background-color: var(--color-orange);
  transform: translateY(0);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 8px 30px -8px rgba(251, 152, 92, 0.35);
}

.primary-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 8px 20px -8px rgba(72, 201, 218, 0.2);
}

.primary-button:disabled:hover {
  transform: none;
}

.button-text,
.button-icon {
  position: relative;
  z-index: 1;
}

.button-icon {
  transition: transform 0.3s ease;
}

.primary-button:hover .button-icon {
  transform: translateX(4px);
}

/* Notice */
.notice {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background: rgba(251, 152, 92, 0.1);
  border: 1px solid rgba(251, 152, 92, 0.3);
  border-radius: 12px;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-secondary);
  text-align: left;
}

.notice-icon {
  flex-shrink: 0;
  color: var(--color-orange);
  margin-top: 2px;
}

/* Fallback */
.fallback {
  min-height: 1.5em;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--text-muted);
  font-weight: 500;
}

/* Footer */
.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(var(--spacing-xs) / 2);
  margin-top: var(--spacing-2xl);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--color-purple);
  text-decoration: none;
  font-weight: 600;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-cyan);
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .content {
    gap: var(--spacing-md);
  }

  .hero-section {
    gap: var(--spacing-md);
    margin-top: calc(-1 * var(--spacing-sm));
  }

  .visual-showcase {
    margin-top: calc(-1 * var(--spacing-xs));
  }

  .title {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .showcase-card {
    padding: var(--spacing-lg);
  }

  .primary-button {
    width: 100%;
    justify-content: center;
    padding: 1rem 2rem;
    font-size: 1rem;
  }

  .cta-section {
    margin-top: calc(-1 * var(--spacing-sm));
  }

}

@media (max-width: 480px) {
  .badge {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
  }

  .subtitle {
    font-size: 0.9375rem;
  }

}

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