:root {
  --font-sans: "Inter", "Helvetica Neue", Arial, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "BIZ UDPGothic", Meiryo, "Yu Gothic Medium", "Noto Sans JP", sans-serif;
  --font-serif: Georgia, "Source Serif 4", "Hiragino Mincho ProN", "Yu Mincho", "BIZ UDPMincho", "Noto Serif JP", serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --line: #c8c1b7;
  --ink: #24211e;
  --muted: #655e57;
  --accent: #235d82;
  --accent-dark: #174563;
  --cta-text: #ffffff;
  --focus: #0b6e9b;
  --page-bg: #ffffff;
  --surface: #ffffff;
  --page-width: 42rem;
}

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

html {
  scroll-behavior: smooth;
}

:lang(ja) {
  line-height: 1.75;
  letter-spacing: 0;
  line-break: strict;
  overflow-wrap: anywhere;
  word-break: normal;
  font-feature-settings: "palt" 1, "kern" 1;
}

@supports (text-autospace: normal) {
  :lang(ja) {
    text-autospace: normal;
  }
}

@supports (text-spacing-trim: normal) {
  :lang(ja) {
    text-spacing-trim: normal;
  }
}

@supports (word-break: auto-phrase) {
  :lang(ja) h1,
  :lang(ja) h2,
  :lang(ja) h3 {
    word-break: auto-phrase;
    text-wrap: balance;
  }
}

body {
  min-width: 20rem;
  margin: 0;
  color: var(--ink);
  background: var(--page-bg);
  font-family: var(--font-sans);
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  overflow: clip;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
dd,
figure,
blockquote {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

h1,
h2,
h3 {
  line-height: 1.35;
}

a {
  color: inherit;
  text-underline-position: under;
  text-underline-offset: 0.15em;
  text-decoration-thickness: 1px;
}

a:focus-visible,
button:focus-visible {
  outline: 0.125rem solid var(--focus);
  outline-offset: 0.25rem;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.container {
  width: min(100%, var(--page-width));
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.skip-link {
  position: fixed;
  z-index: 20;
  inset-block-start: var(--space-2);
  inset-inline-start: var(--space-2);
  padding: var(--space-2) var(--space-4);
  color: var(--cta-text);
  background: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.primary-cta {
  display: flex;
  width: 100%;
  min-height: 3.5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  color: var(--cta-text);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 0.2rem;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.primary-cta::after {
  content: "→";
  font-size: 1.35rem;
  line-height: 1;
  transition: transform 160ms ease;
}

.primary-cta:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-0.125rem);
}

.primary-cta:hover::after {
  transform: translateX(0.25rem);
}

.section-kicker {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.section-copy {
  color: var(--muted);
}

.calendar-slot {
  min-height: 20rem;
  padding: var(--space-6) var(--space-5);
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
}

.calendar-slot strong {
  display: block;
  color: var(--ink);
  font-size: 1.125rem;
}

.calendar-slot p {
  margin-block-start: var(--space-3);
}

.site-footer {
  padding-block: var(--space-8);
  color: var(--muted);
  background: var(--page-bg);
  border-block-start: 1px solid var(--line);
  font-size: 0.8125rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3) var(--space-5);
}

[data-enter] {
  opacity: 1;
  transform: none;
}

.has-js [data-enter]:not(.is-visible) {
  opacity: 0;
  transform: translateY(0.75rem);
}

.has-js [data-enter] {
  transition: opacity 320ms cubic-bezier(0.2, 0, 0, 1), transform 320ms cubic-bezier(0.2, 0, 0, 1);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .has-js [data-enter]:not(.is-visible) {
    opacity: 1;
    transform: none;
  }
}