:root {
  --bg: #0b0b0b;
  --bg-2: #141413;
  --line: #2c2c2a;
  --text: #f1efe8;
  --muted: #a3a29b;
  --dim: #6f6e69;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --sans: "Helvetica Neue", Arial, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  --gutter: clamp(16px, 5vw, 72px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
h1, h2, h3 { font-weight: 400; margin: 0; }
.sp { display: none; }

/* header */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px var(--gutter);
  background: rgba(11,11,11,.92);
  border-bottom: 1px solid rgba(44,44,42,.6);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand svg { width: 30px; height: auto; }
.brand span { font-size: 13px; letter-spacing: .3em; }
.site-header nav { display: flex; gap: clamp(16px, 3vw, 36px); }
.site-header nav a {
  font-size: 12px; letter-spacing: .2em; text-transform: uppercase;
  text-decoration: none; color: var(--muted); transition: color .2s;
}
.site-header nav a:hover { color: var(--text); }

/* hero */
.hero {
  position: relative; min-height: 100svh;
  display: grid; place-items: center; text-align: center;
  padding: 120px var(--gutter) 96px;
  background:
    radial-gradient(ellipse at 50% 40%, #1f1e1c 0%, var(--bg) 70%);
}
.hero-logo svg { width: clamp(64px, 9vw, 96px); height: auto; opacity: .95; }
.eyebrow { margin: 28px 0 12px; font-size: 12px; letter-spacing: .5em; color: var(--muted); }
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.35; letter-spacing: .12em;
}
.hero-sub { margin: 28px 0 0; font-size: 12px; letter-spacing: .25em; color: var(--dim); }
.scroll-cue {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  width: 1px; height: 56px; overflow: hidden; background: var(--line);
}
.scroll-cue span {
  display: block; width: 1px; height: 24px; background: var(--text);
  animation: cue 2.2s ease-in-out infinite;
}
@keyframes cue { from { transform: translateY(-24px); } to { transform: translateY(56px); } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scroll-cue span { animation: none; }
}

/* sections */
.section {
  display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 32px;
  max-width: 1200px; margin: 0 auto;
  padding: clamp(80px, 12vw, 140px) var(--gutter);
  border-top: 1px solid var(--line);
  scroll-margin-top: 48px;
}
.label {
  margin: 6px 0 0; font-size: 12px; letter-spacing: .35em;
  text-transform: uppercase; color: var(--muted);
}
.section h2 {
  font-family: var(--serif);
  font-size: clamp(24px, 3.2vw, 36px); letter-spacing: .1em; line-height: 1.6;
  margin-bottom: 28px;
}
.about-body p { max-width: 40em; color: #d3d1c7; margin: 0 0 1em; }

/* creative */
.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.card { background: var(--bg); padding: 32px 28px 36px; transition: background .3s; }
.card:hover { background: var(--bg-2); }
.card-en { margin: 0 0 6px; font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--dim); }
.card h3 { font-family: var(--serif); font-size: 20px; letter-spacing: .08em; margin-bottom: 14px; }
.card p:last-child { margin: 0; font-size: 14px; line-height: 1.85; color: var(--muted); }

/* company */
.company-body { display: grid; gap: 64px; }
.profile { margin: 0; border-top: 1px solid var(--line); }
.profile div {
  display: grid; grid-template-columns: 9em minmax(0, 1fr); gap: 16px;
  padding: 18px 0; border-bottom: 1px solid var(--line);
}
.profile dt { color: var(--muted); font-size: 14px; }
.profile dd { margin: 0; font-size: 15px; }
.profile .en { color: var(--dim); font-size: 13px; letter-spacing: .1em; }
.history h3 { font-family: var(--serif); font-size: 20px; letter-spacing: .1em; margin-bottom: 20px; }
.history ol { list-style: none; margin: 0; padding: 0; }
.history li {
  display: grid; grid-template-columns: 5em minmax(0, 1fr); gap: 16px;
  padding: 10px 0; font-size: 15px; color: #d3d1c7;
}
.history time { color: var(--dim); letter-spacing: .1em; font-variant-numeric: tabular-nums; }

/* contact */
.contact-body .tel { margin: 0; }
.contact-body .tel a {
  font-size: clamp(28px, 4.5vw, 44px); letter-spacing: .12em;
  text-decoration: none; border-bottom: 1px solid var(--line);
}
.contact-body .addr { margin: 20px 0 0; color: var(--muted); font-size: 14px; }

.site-footer {
  padding: 40px var(--gutter); border-top: 1px solid var(--line);
  text-align: center; font-size: 12px; letter-spacing: .15em; color: var(--dim);
}
.site-footer p { margin: 0; }

/* 404 */
.notfound {
  min-height: 100svh; display: grid; place-items: center; text-align: center;
  padding: 120px var(--gutter);
}
.notfound h1 { font-family: var(--serif); font-size: clamp(26px, 4vw, 40px); letter-spacing: .1em; margin: 16px 0; }
.notfound p { color: var(--muted); margin: 0 0 32px; }
.notfound a.btn {
  display: inline-block; padding: 12px 32px; border: 1px solid var(--line);
  text-decoration: none; font-size: 13px; letter-spacing: .2em;
}
.notfound a.btn:hover { border-color: var(--text); }

@media (max-width: 760px) {
  .sp { display: inline; }
  .site-header { padding-top: 14px; padding-bottom: 14px; }
  .brand span { display: none; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 11px; letter-spacing: .12em; }
  .section { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .profile div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .history li { grid-template-columns: 3.6em minmax(0, 1fr); gap: 10px; font-size: 14px; }
}

/* ===== 2026-10 更新：リニューアル案の内容を反映（画像なし） ===== */
.section h2 { margin-bottom: 20px; }
.lead { max-width: 40em; color: var(--muted); margin: 0 0 40px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card-catch { margin: -6px 0 14px; font-family: var(--serif); color: #d3d1c7; font-size: 15px; }
.card p:not(.card-en):not(.card-catch) { font-size: 14px; line-height: 1.9; color: var(--muted); margin: 0 0 18px; }
.tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.tags li { font-size: 12px; color: #d3d1c7; border: 1px solid var(--line); padding: 2px 10px; }

.reason-list { list-style: none; margin: 0 0 48px; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px; }
.reason-list .num { display: block; font-size: 12px; letter-spacing: .2em; color: var(--dim); margin-bottom: 10px; }
.reason-list h3 { font-family: var(--serif); font-size: 20px; letter-spacing: .08em; margin-bottom: 8px; }
.reason-list p { margin: 0 0 10px; font-size: 14px; color: var(--muted); line-height: 1.9; }
.reason-list .reason-catch { font-family: var(--serif); color: #d3d1c7; font-size: 15px; }
.stats-box { border-top: 1px solid var(--line); padding-top: 28px; }
.stats-title { font-family: var(--serif); font-size: 18px; letter-spacing: .1em; margin: 0 0 18px; }
.stats { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; }
.stats div { border-left: 1px solid var(--line); padding-left: 14px; }
.stats dt { font-size: 12px; color: var(--dim); }
.stats dd { margin: 4px 0 0; font-size: 36px; line-height: 1.1; }
.stats dd span { font-size: 13px; color: var(--muted); margin-left: 4px; }

.work-list { list-style: none; margin: 0 0 48px; padding: 0; border-top: 1px solid var(--line); }
.work-list .work { display: grid; grid-template-columns: 9em minmax(0, 1fr); column-gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.work-list .work-cat { grid-row: span 2; margin: 3px 0 0; font-size: 11px; letter-spacing: .15em; text-transform: uppercase; color: var(--dim); }
.work-list h3 { font-family: var(--serif); font-size: 17px; letter-spacing: .04em; margin: 0 0 2px; }
.work-list .work p:last-child { margin: 0; font-size: 13px; color: var(--muted); }
.award { display: inline-block; margin: 6px 6px 0 0; font-weight: 400; font-size: 12px; color: #c9a96e; border: 1px solid currentColor; padding: 1px 8px; }
.sub { font-family: var(--serif); font-size: 18px; letter-spacing: .1em; margin: 0 0 14px; }
.client-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); border-top: 1px solid var(--line); }
.client-list li { padding: 12px 8px 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; color: #d3d1c7; }
.note { margin: 12px 0 0; font-size: 12px; color: var(--dim); }
.contact-body h2 { margin-bottom: 12px; }
.contact-body .cta-lead { color: var(--muted); margin: 0 0 20px; font-size: 14px; }

@media (max-width: 760px) {
  .work-list .work { grid-template-columns: minmax(0, 1fr); }
  .work-list .work-cat { grid-row: auto; margin-bottom: 4px; }
}