:root {
  --color-primary: #1f4e79;
  --color-primary-hover: #173b5c;
  --color-primary-soft: #e8f0f8;
  --color-text: #1c2430;
  --color-text-muted: #5f6b7a;
  --color-border: #dde3ea;
  --color-border-strong: #c3ccd6;
  --color-surface: #ffffff;
  --color-background: #f4f6f9;

  --color-ok: #1a7f4b;
  --color-ok-soft: #e3f4ea;
  --color-alert: #a3620a;
  --color-alert-soft: #fdf1dc;
  --color-gap: #c0352b;
  --color-gap-soft: #fbe6e4;
  --color-neutral: #6b7684;
  --color-neutral-soft: #eef1f4;
  --color-holiday: #7b3fa0;
  --color-holiday-soft: #f3eafa;
  --color-event: #1f6f8b;
  --color-event-soft: #e3f2f7;

  --radius-sm: 6px;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgb(16 24 40 / 6%);
  --shadow: 0 1px 3px rgb(16 24 40 / 8%), 0 1px 2px rgb(16 24 40 / 4%);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-background);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.25;
  font-weight: 650;
}

h1 {
  font-size: 1.5rem;
}

h2 {
  font-size: 1.0625rem;
}

h3 {
  font-size: 0.9375rem;
}

p {
  margin: 0 0 var(--space-3);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

svg {
  flex-shrink: 0;
  vertical-align: middle;
}

[hidden] {
  display: none !important;
}

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

.muted {
  color: var(--color-text-muted);
}

.text-danger {
  color: var(--color-gap);
}

.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;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}