:root{
  --bg:#ffffff;
  --text:#101010;
  --muted:#666;
  --line:rgba(0,0,0,.10);
  --alt:#f6f6f6;

  --primary:#111;
  --primary-contrast:#fff;

  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.10);
  --container:1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
}

a{color:inherit}

.container{
  width:min(var(--container), calc(100% - 40px));
  margin:0 auto;
}

.skip-link{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left:20px; top:20px; width:auto; height:auto; padding:10px 12px;
  background:#fff; border:1px solid var(--line); border-radius:10px; z-index:9999;
}

/* Header */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
  gap:18px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
}

.brand-logo{
  height:30px;
  width:auto;
  display:block;
}

@media (max-width: 860px){
  .brand-logo{height:26px}
}

.header-nav{
  display:flex; gap:16px;
  font-size:14px;
}
.header-nav a{
  text-decoration:none;
  color:var(--muted);
  padding:6px 8px;
  border-radius:10px;
}
.header-nav a:hover{color:var(--text); background:rgba(0,0,0,.04)}

/* Hero */
.hero{
  position:relative;
  min-height:72vh;
  display:flex;
  align-items:flex-end;
  padding:0 0 56px 0;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0;
  background-image:url("https://collabohouse.info/assets/img/top/slider2.jpg");
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.hero-overlay{
  position:absolute; inset:0;
  background:linear-gradient(
    to top,
    rgba(0,0,0,.68),
    rgba(0,0,0,.26) 55%,
    rgba(0,0,0,.16)
  );
}
.hero-inner{
  position:relative;
  color:#fff;
  padding-top:70px;
}
.hero-eyebrow{
  margin:0 0 10px 0;
  font-size:12px;
  letter-spacing:.18em;
  opacity:.9;
}
.hero-title{
  margin:0;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height:1.2;
  letter-spacing:.02em;
}
.hero-title span{
  font-weight:500;
  opacity:.96;
}
.hero-lead{
  margin:16px 0 0 0;
  max-width: 56ch;
  color:rgba(255,255,255,.92);
}
.hero-cta{
  margin-top:22px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.hero-note{
  margin:16px 0 0 0;
  font-size:13px;
  color:rgba(255,255,255,.85);
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 16px;
  border-radius:999px;
  text-decoration:none;
  border:1px solid transparent;
  transition:transform .06s ease, opacity .2s ease, background .2s ease, border-color .2s ease;
  font-weight:600;
}
.btn:active{transform:translateY(1px)}

.btn-primary{
  background:var(--primary);
  color:var(--primary-contrast);
  border-color:rgba(255,255,255,0);
  box-shadow:0 10px 24px rgba(0,0,0,.22);
}
.btn-primary:hover{opacity:.92}

.btn-ghost{
  background:rgba(255,255,255,.06);
  color:#fff;
  border-color:rgba(255,255,255,.35);
}
.btn-ghost:hover{background:rgba(255,255,255,.10)}

.btn-ghost-dark{
  background:transparent;
  color:var(--text);
  border-color:rgba(0,0,0,.18);
}
.btn-ghost-dark:hover{background:rgba(0,0,0,.04)}

/* Sections */
.section{padding:72px 0}
.section-alt{background:var(--alt)}
.section-title{
  margin:0 0 12px 0;
  font-size: clamp(20px, 2.2vw, 28px);
  letter-spacing:.02em;
}
.section-lead{
  margin:0;
  max-width: 78ch;
  color:var(--muted);
}

/* Callout */
.callout{
  margin-top:18px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  background:#fff;
  box-shadow:var(--shadow);
}
.callout-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:16px;
}
.label{
  margin:0;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
}
.value{
  margin:6px 0 0 0;
  font-size:18px;
  font-weight:700;
}
.callout-notes{
  margin:14px 0 0 0;
  color:var(--muted);
}
.callout-notes p{
  margin:6px 0 0 0;
}

/* (removed) contact-person */

.request-details{
  margin-top:12px;
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 12px;
  background:rgba(0,0,0,.02);
}
.request-details summary{
  cursor:pointer;
  font-weight:600;
}
.request-subtext{
  margin:10px 0 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.request-footnote{
  margin:12px 0 0 0;
  color:var(--muted);
  font-size:12px;
}

/* Cards */
.cards{
  margin-top:22px;
  display:grid;
  gap:14px;
  grid-template-columns:repeat(3, minmax(0,1fr));
}
.card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  background:#fff;
}
.card-title{margin:0 0 8px 0; font-size:16px}
.card-text{margin:0; color:var(--muted)}

/* Lists */
.bullets{margin:14px 0 0 0; padding-left:18px}
.bullets li{margin:6px 0}

/* Notice */
.notice{
  margin-top:22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:#fff;
  padding:18px;
}
.notice-title{margin:0 0 10px 0; font-size:16px}
.notice-text{margin:10px 0 0 0; color:var(--muted)}

/* Request box */
.request-box{
  margin-top:22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  box-shadow:var(--shadow);
}
.request-title{margin:0 0 8px 0; font-size:16px}
.request-text{margin:0; color:var(--muted)}

.fields{
  margin-top:14px;
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:10px;
}
.field{
  border:1px dashed rgba(0,0,0,.18);
  border-radius:12px;
  padding:10px 10px;
  font-size:14px;
  background:rgba(0,0,0,.02);
}

.download-cta{
  margin-top:16px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

/* Footer CTA */
.footer-cta{
  margin-top:24px;
  border-radius:var(--radius);
  background:#111;
  color:#fff;
  padding:22px;
  box-shadow:var(--shadow);
}
.footer-cta-title{margin:0 0 14px 0; font-size:18px}
.footer-cta-buttons{display:flex; gap:12px; flex-wrap:wrap}

/* Footer CTA内のメール/電話ボタンを同じ「丸囲み」見た目に揃える */
.footer-cta-buttons .btn{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.35);
  box-shadow:none;
}
.footer-cta-buttons .btn:hover{background:rgba(255,255,255,.10)}

.footer-cta-note{margin:14px 0 0 0; color:rgba(255,255,255,.80); font-size:13px}

/* Footer */
.site-footer{
  border-top:1px solid var(--line);
  padding:22px 0;
  color:var(--muted);
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.site-footer a{color:var(--muted); text-decoration:none}
.site-footer a:hover{color:var(--text)}

/* Responsive */
@media (max-width: 920px){
  .cards{grid-template-columns:1fr}
  .fields{grid-template-columns:1fr}
}
@media (max-width: 860px){
  .callout-grid{grid-template-columns:1fr}
  .hero{min-height:68vh}
  .header-nav{display:none}
}