/* pattern-a: 余白多め・落ち着いた上品な会社サイト */

:root {
  --ink: #2e2a26;
  --ink-soft: #6b645c;
  --paper: #faf8f4;
  --line: #d8d2c8;
  --accent: #8a7b62;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  display: flex;
  min-height: 100svh;
  flex-direction: column;
}

/* header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(1.4rem, 3vw, 2.2rem) clamp(1.4rem, 5vw, 4rem);
}

.brand {
  font-size: 1rem;
  letter-spacing: .35em;
}

.header-contact {
  font-size: .82rem;
  letter-spacing: .2em;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: .2em;
  transition: color .3s, border-color .3s;
}

.header-contact:hover {
  color: var(--ink);
  border-color: var(--accent);
}

/* hero */
main { flex: 1; }

.hero {
  text-align: center;
  padding: clamp(5rem, 16vh, 11rem) 1.5rem clamp(3rem, 8vh, 5rem);
}

.hero-en {
  font-family: Georgia, "Times New Roman", serif;
  font-size: .72rem;
  letter-spacing: .55em;
  text-indent: .55em; /* 中央揃え補正 */
  color: var(--accent);
  margin-bottom: 2.2rem;
}

.hero-name {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 500;
  letter-spacing: .3em;
  text-indent: .3em;
}

.hero-rule {
  width: 1px;
  height: clamp(3rem, 8vh, 5rem);
  background: var(--line);
  margin: 2.6rem auto;
}

.hero-copy {
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  letter-spacing: .18em;
  color: var(--ink-soft);
}

/* mark */
.mark {
  text-align: center;
  color: var(--line);
  padding: clamp(2rem, 6vh, 4rem) 0;
}

/* contact */
.contact {
  text-align: center;
  padding: clamp(3rem, 8vh, 6rem) 1.5rem clamp(5rem, 12vh, 8rem);
}

.contact-label {
  font-size: .8rem;
  letter-spacing: .4em;
  text-indent: .4em;
  color: var(--ink-soft);
  margin-bottom: 1.4rem;
}

.contact-mail {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.05rem, 3vw, 1.35rem);
  letter-spacing: .08em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: .25em;
  transition: opacity .3s;
}

.contact-mail:hover { opacity: .6; }

/* footer */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem 2.4rem;
  border-top: 1px solid var(--line);
}

.site-footer p {
  font-size: .75rem;
  letter-spacing: .25em;
  color: var(--ink-soft);
}

/* responsive */
.sp-only { display: none; }

@media (max-width: 560px) {
  .sp-only { display: inline; }
  .site-header { flex-direction: column; gap: 1rem; }
}