:root {
  --page-bg: #ffffff;
  --text-main: #111111;
  --text-subtle: #666666;
  --page-padding: clamp(20px, 4vw, 40px);
  --humor-font-desktop: clamp(2.4rem, 1.7vw + 1.8rem, 3.15rem);
  --humor-font-mobile: clamp(1.8rem, 4vw + 0.9rem, 2.45rem);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100svh;
  background: var(--page-bg);
  color: var(--text-main);
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  display: flex;
  flex-direction: column;
}

.site-header {
  padding: var(--page-padding) var(--page-padding) 0;
}

.site-title {
  margin: 0;
  font-size: clamp(0.95rem, 1vw + 0.8rem, 1.25rem);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.page-main {
  flex: 1;
  display: grid;
  place-items: center;
  padding: var(--page-padding);
  overflow: hidden;
}

.humor-line {
  margin: 0;
  display: inline-block;
  text-align: center;
  font-size: var(--humor-font-desktop);
  line-height: 1.35;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.noscript-note {
  margin: 0;
  padding: 0 var(--page-padding) var(--page-padding);
  color: var(--text-subtle);
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  .humor-line {
    display: block;
    max-width: 12ch;
    font-size: var(--humor-font-mobile);
    white-space: normal;
    line-height: 1.6;
    text-wrap: pretty;
  }
}