/* =========================================
   laserdatsumou.com - shared style.css
   Purpose: simple, readable, user-first
   ========================================= */

* { box-sizing: border-box; }
html:focus-within { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Hiragino Sans",
    "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: #111;
  background: #fff;
}

a { color: inherit; }
a:hover { opacity: 0.85; }

.container {
  width: min(980px, 92vw);
  margin: 0 auto;
  padding: 20px 0;
}

.site-header {
  border-bottom: 1px solid #e9e9e9;
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0;
}
.brand a { text-decoration: none; }
.brand .title { font-weight: 800; font-size: 1.05rem; }
.brand .tagline { font-size: 0.92rem; opacity: 0.8; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 0 0 14px;
}
.nav a {
  text-decoration: none;
  font-size: 0.95rem;
  padding: 6px 10px;
  border: 1px solid #efefef;
  border-radius: 999px;
  background: #fafafa;
}

main { padding: 18px 0 28px; }
h1 {
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  line-height: 1.35;
  margin: 18px 0 12px;
}
h2 {
  font-size: 1.15rem;
  margin: 22px 0 10px;
}
h3 {
  font-size: 1.02rem;
  margin: 16px 0 8px;
}
p { margin: 0 0 12px; }
ul { margin: 0 0 12px 1.2em; }
li { margin: 0.2em 0; }

.card {
  border: 1px solid #ededed;
  border-radius: 16px;
  padding: 14px 14px;
  background: #fcfcfc;
  margin: 14px 0;
}

.lead {
  font-size: 1.02rem;
  opacity: 0.92;
}

.note {
  font-size: 0.92rem;
  opacity: 0.85;
}

.divider {
  height: 1px;
  background: #efefef;
  margin: 18px 0;
}

.pager {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  margin-top: 18px;
}
.pager a {
  flex: 1;
  text-decoration: none;
  border: 1px solid #efefef;
  border-radius: 14px;
  padding: 10px 12px;
  background: #fafafa;
}
.pager a span {
  display: block;
  font-size: 0.9rem;
  opacity: 0.75;
}
.pager a strong {
  display: block;
  font-size: 1rem;
  margin-top: 2px;
}

.site-footer {
  border-top: 1px solid #e9e9e9;
  padding: 18px 0 28px;
  background: #fff;
  color: #222;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 10px 0 0;
}
.footer-links a { text-decoration: none; opacity: 0.9; }
.small { font-size: 0.9rem; opacity: 0.78; }