:root { color-scheme: light; }
body { display: block; margin: 0; background: #f5f8fa; color: #233547; font-family: "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif; }
.overload-site-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 24px; background: white; border-bottom: 1px solid #c9d6e2; }
.overload-home { color: #0f766e; font-size: 14px; font-weight: 700; text-decoration: none; }
.overload-home:hover { text-decoration: underline; }
.overload-badge { padding: 4px 12px; border: 1px solid #b4d8d3; border-radius: 20px; font-size: 12px; color: #0f766e; background: #e8f4f2; }
.overload-shell { width: min(100% - 24px, 520px); margin: 32px auto; }
.overload-shell h1 { margin: 0; font-size: 26px; font-weight: 800; }
.overload-intro { margin: 8px 0 16px; color: #61758a; font-size: 14px; }
.overload-preview-note { padding: 10px 14px; margin-bottom: 18px; border-radius: 8px; background: #fff5e6; color: #805315; font-size: 12px; }
#app { width: 100%; border: 1px solid #c9d6e2; border-radius: 14px; box-shadow: 0 3px 12px #2335470c; }
#app .menuTab { max-width: none; }
#app .menuTab > label { color: #61758a; background: #edf2f7; padding: 14px 6px; }
#app .menuTab label:has(:checked) { color: #0f766e; background: #e7f3f1; border-bottom-color: #0f766e; }
#app .bg-blue-500, #app .bg-blue-600 { background-color: #0f766e; }
#app .hover\:bg-blue-700:hover { background-color: #0b5e58; }
#app .bg-blue-200 { background-color: #cce7e2; }
#app .hover\:bg-blue-100:hover { background-color: #e7f3f1; }
#app .border-blue-400 { border-color: #7cb7ad; }
#app .bg-gray-100 { background-color: #f1f5f9; }
#app button, #app select, #app input { border-radius: 6px; }
#app button:focus-visible, #app select:focus-visible, #app input:focus-visible, a:focus-visible { outline: 3px solid #31a99c; outline-offset: 2px; }
#app .histogram-chart-container { width: 100%; max-width: 450px; }
@media (max-width: 540px) {
  .overload-site-header { padding: 12px; }
  .overload-shell { margin-top: 20px; }
  #app .px-4 { padding-left: 8px; padding-right: 8px; }
  #app h2 { font-size: 16px; }
}