/* WORLD design tokens: shared foundations for every product interface. */
:root {
  --world-font-sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", system-ui, -apple-system, sans-serif;
  --world-page-background: #f4f3ee;
  --world-surface: #fffefa;
  --world-surface-soft: #f5f8f5;
  --world-surface-accent: #e7f0ed;
  --world-ink: #101a17;
  --world-muted: #59645f;
  --world-quiet: #84908b;
  --world-line: #d9d8d1;
  --world-line-strong: #c5ddd6;
  --world-accent: #137861;
  --world-accent-deep: #0e604d;
  --world-accent-soft: #e7f0ed;
  --world-info: #356a88;
  --world-info-soft: #e8f1f6;
  --world-warning: #9e631d;
  --world-warning-soft: #fff1df;
  --world-danger: #ae4638;
  --world-danger-soft: #fbeceb;
  --world-success: #137861;
  --world-success-soft: #e7f0ed;
  --world-radius-sm: 12px;
  --world-radius-md: 18px;
  --world-radius-lg: 24px;
  --world-shadow-card: 0 1px 2px rgba(16,26,23,.045), 0 14px 36px rgba(16,26,23,.06);
  --world-shadow-raised: 0 1px 0 rgba(255,255,255,.95) inset, 0 1px 2px rgba(16,26,23,.04), 0 18px 44px rgba(16,26,23,.075);
  --world-container: 1240px;

  /* Shell and button compatibility aliases. */
  --world-shell-surface: var(--world-surface);
  --world-shell-background: var(--world-page-background);
  --world-shell-ink: var(--world-ink);
  --world-shell-sub: var(--world-muted);
  --world-shell-line: var(--world-line);
  --world-shell-accent: var(--world-accent);
  --world-shell-accent-deep: var(--world-accent-deep);
  --world-shell-accent-soft: var(--world-accent-soft);
}