:root {
  /* Colors */
  --color-primary: #007bff;
  --color-primary-dark: #0056b3;
  --color-secondary: #6c757d;
  --color-success: #28a745;
  --color-danger: #dc3545;
  --color-warning: #ffc107;
  --color-info: #17a2b8;
  --color-light: #f8f9fa;
  --color-dark: #343a40;
  --color-text: #212529;
  --color-text-muted: #6c757d;
  --color-background: #ffffff;
  --color-border: #dee2e6;

  /* Typography */
  --font-family-sans-serif: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --font-size-base: 16px;
  --font-size-lg: 1.25rem;
  --font-size-sm: 0.875rem;
  --font-weight-normal: 400;
  --font-weight-bold: 700;
  --line-height-base: 1.5;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 1rem;
  --spacing-4: 1.5rem;
  --spacing-5: 3rem;

  /* Borders */
  --border-width: 1px;
  --border-radius: 0.375rem;
  --border-radius-sm: 0.25rem;
  --border-radius-lg: 0.5rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
}

button,
input[type="radio"],
input[type="checkbox"],
input[type="radio"]~label {
  cursor: pointer;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.bg-color-f7fafc {
  background-color: #f7fafc;
}

.bg-color-f8fafc {
  background-color: #f8fafc;
  background-image: radial-gradient(circle at 10% 20%, rgb(223, 235, 255) 0%, rgb(243, 246, 255) 90.2%);
}

.bg-color-f1f5f9 {
  background-color: #f1f5f9;
}

input[type="text"],
input[type="number"] {
  border: solid 1px #d1d1d1;
  border-radius: 4px;
  padding: 2px 4px;
}

.admin-bg {
  background-color: #f8fafc;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}