/* base.css — reset, typography, layout, header, footer */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--f);color:var(--ink);background:var(--bg);
  font-size:17px;line-height:1.7;font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--f);font-weight:600;line-height:1.18;margin:0 0 .5em;color:var(--ink);letter-spacing:-.015em}
h1{font-size:clamp(34px,4.8vw,56px);font-weight:700}
h2{font-size:clamp(26px,3.2vw,38px)}
h3{font-size:20px}
p{margin:0 0 1em}
small{font-size:.82em}
.container{max-width:var(--container);margin:0 auto;padding:0 28px}
.muted{color:var(--muted)}
.center{text-align:center}
::selection{background:var(--brand);color:#fff}

/* topbar */
.topbar{background:var(--ink);color:#aeb6bf;font-size:13.5px;letter-spacing:.01em}
.topbar a{color:#e7eaed}
.topbar a:hover{color:#fff}
.topbar-in{display:flex;justify-content:space-between;align-items:center;height:42px;gap:20px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;gap:28px;height:78px}
.brand{display:flex;align-items:center;gap:13px}
.brand-mark{width:42px;height:42px;border-radius:10px;background:var(--ink);color:#fff;
  font-family:var(--f-en);font-weight:600;font-size:17px;display:flex;align-items:center;justify-content:center;letter-spacing:.02em}
.brand-text{font-family:var(--f-en);font-weight:600;font-size:17px;letter-spacing:.06em;color:var(--ink);line-height:1.1;display:flex;flex-direction:column}
.brand-text small{font-family:var(--f);font-weight:400;font-size:11px;letter-spacing:.02em;color:var(--muted);text-transform:none}
.menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.menu-link{font-size:15.5px;font-weight:500;color:var(--ink-2);padding:10px 14px;border-radius:8px;position:relative;transition:color .15s}
.menu-link:hover{color:var(--ink)}
.menu-link.is-active{color:var(--brand)}
.menu-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--brand);border-radius:2px}
.nav-cta{margin-left:12px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:9px;margin-left:auto}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* footer */
.site-footer{background:var(--ink);color:#9aa3ad;margin-top:0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr;gap:48px;padding:72px 28px 48px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.02em}
.footer-brand .brand-mark{background:#fff;color:var(--ink)}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:#8b94a0}
.f-addr{margin:18px 0;color:#9aa3ad;max-width:300px;line-height:1.75}
.f-line-btns{display:flex;gap:10px;flex-wrap:wrap}
.f-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.f-contact b{color:#fff;font-weight:500;display:inline-block;min-width:92px}
.f-contact a:hover{color:#fff}
.f-map{border-radius:var(--r);overflow:hidden;border:1px solid #2a313a}
.f-map iframe{width:100%;height:190px;border:0;display:block;filter:grayscale(.3)}
.sub-footer{border-top:1px solid #262d36;padding:22px 0;text-align:center;font-size:13px;color:#7c8590}

@media(max-width:900px){
  .nav-toggle{display:flex}
  .menu{position:fixed;inset:78px 0 auto 0;flex-direction:column;align-items:stretch;background:#fff;
    padding:16px 24px 24px;gap:2px;border-bottom:1px solid var(--border);box-shadow:var(--sh-lg);
    transform:translateY(-130%);transition:transform .26s ease;margin-left:0}
  body.nav-open .menu{transform:translateY(0)}
  .nav-cta{margin:12px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding:48px 24px 36px}
}
@media(max-width:560px){.container{padding:0 20px}}