/* ページ全体の文字組みと基礎スタイル */
html {
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--color-primary);
  background: var(--color-white);
  text-rendering: optimizeLegibility;
}

main {
  overflow: clip;
}

section,
footer {
  position: relative;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.3;
  letter-spacing: -0.02em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* モバイル専用改行：PCでは非表示 */
.br-mobile {
  display: none;
}

h1 {
  font-size: var(--font-size-hero);
  font-weight: 900;
}

h2 {
  font-size: var(--font-size-section);
  font-weight: 800;
}

h3 {
  font-size: var(--font-size-subheading);
  font-weight: 600;
  letter-spacing: 0;
}

p {
  color: var(--color-primary);
}

small {
  font-size: var(--font-size-caption);
}

a,
button {
  transition:
    color var(--transition-base),
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    opacity var(--transition-base),
    transform var(--transition-base);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
}

::selection {
  color: var(--color-white);
  background: var(--color-accent);
}

.skip-link {
  position: absolute;
  top: -64px;
  left: var(--padding-mobile);
  z-index: 100;
  padding: 12px 20px;
  color: var(--color-white);
  background: var(--color-primary);
  border-radius: var(--radius-pill);
}

.skip-link:focus {
  top: 20px;
}