/* /assets/css/style.css */
:root{
  --bg:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --card:#f9fafb;
  --btn:#111827;
  --btnText:#ffffff;
  --radius:18px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  background:var(--bg);
  color:var(--text);
}
a{color:inherit}
.container{max-width:1100px;margin:0 auto;padding:0 16px}

.topbar{
  position:sticky;top:0;background:#fff;
  border-bottom:1px solid var(--line);
  z-index:10
}
.topbar-inner{
  display:flex;align-items:center;gap:16px;
  padding:14px 0
}

.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;min-width:200px}
.logo{height:62px;width:auto}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-weight:800;letter-spacing:.2px}
.brand-tagline{font-size:12px;color:var(--muted);font-weight:600;margin-top:2px}

.nav{display:flex;gap:8px;flex:1;flex-wrap:wrap;justify-content:center}
.nav-link{
  text-decoration:none;color:var(--text);
  font-weight:700;font-size:14px;
  padding:8px 10px;border-radius:14px
}
.nav-link:hover{background:var(--card)}
.nav-link.active{background:var(--card)}

.btn{
  background:var(--btn);color:var(--btnText);
  padding:10px 14px;border-radius:16px;
  text-decoration:none;display:inline-block;
  font-weight:800;border:1px solid var(--btn);
}
.btn:hover{opacity:.92}
.btn-ghost{background:transparent;color:var(--btn);border:1px solid var(--btn)}
.btn-small{padding:8px 12px;border-radius:14px;font-size:14px}

.content{padding:26px 0}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px
}

.lead{font-size:18px;line-height:1.55;margin:10px 0 0 0}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}

.form label{display:block;font-weight:800;font-size:14px;margin-bottom:10px}
.req{color:#b91c1c;font-weight:900}
.form input,.form textarea{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:14px;
  font:inherit;background:#fff;margin-top:6px
}
.muted{color:var(--muted);font-size:13px}

.notice{
  padding:12px 14px;border-radius:16px;margin:0 0 12px 0;
  border:1px solid var(--line);background:#fff;font-weight:700
}
.notice.ok{border-color:#86efac}
.notice.ko{border-color:#fca5a5}

.footer{border-top:1px solid var(--line);padding:18px 0;margin-top:30px}
.footer-inner{display:flex;gap:16px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}
.footer-links{display:flex;gap:12px;flex-wrap:wrap}
.footer a{color:var(--text);text-decoration:none;font-weight:800}
.footer a:hover{text-decoration:underline}

/* Mobile menu */
.hamburger{
  display:none;background:transparent;border:1px solid var(--line);
  border-radius:14px;padding:8px 10px;cursor:pointer
}
.hamburger span{
  display:block;width:18px;height:2px;background:var(--text);margin:4px 0;border-radius:2px
}
.mobile-nav{
  display:none;border-top:1px solid var(--line);
  background:#fff
}
.mobile-nav.open{display:block}
.mobile-nav-inner{padding:12px 0;display:flex;flex-direction:column;gap:8px}
.mobile-link{
  text-decoration:none;font-weight:800;padding:10px 12px;border-radius:14px
}
.mobile-link:hover{background:var(--card)}
.mobile-link.active{background:var(--card)}

@media (max-width: 980px){
  .nav{display:none}
  .hamburger{display:inline-block}
}
@media (max-width: 900px){
  .grid3,.grid2{grid-template-columns:1fr}
}