/* ============================================================
   RegValve.com — SHARED CHROME (header + footer)
   Linked by EVERY page (index + inner). Edit here = site-wide.
   ============================================================ */

/* ---------- header ---------- */
.site-header{background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid #E7ECEA;position:sticky;top:0;z-index:50}
.header-inner{max-width:1180px;margin:0 auto;padding:0 30px;display:flex;align-items:center;gap:18px;height:56px}
.brand{display:flex;align-items:center}
.brand img{height:34px;width:auto}
.main-nav{margin-left:auto;display:flex;gap:15px;flex-wrap:wrap;justify-content:flex-end}
.main-nav a{font-size:12.5px;font-weight:600;color:#5F6B76;transition:.12s;white-space:nowrap}
.main-nav a:hover{color:#0F766E}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;font-size:24px;cursor:pointer;color:#182430;line-height:1}

/* ---------- footer ---------- */
.site-footer{background:#14181D;color:rgba(255,255,255,.75);border-top:4px solid #0F766E}
.foot-grid{max-width:1180px;margin:0 auto;padding:34px 30px 24px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:0 0 6px}
.site-footer a{font-size:12.5px;color:rgba(255,255,255,.75)}
.site-footer a:hover{color:#7FD1C9}
.foot-brand img{height:30px;width:auto;margin-bottom:14px}
.foot-brand p{font-size:12.5px;max-width:320px;margin:0;line-height:1.7}
.foot-base{border-top:1px solid rgba(255,255,255,.12)}
.foot-base .inner{max-width:1180px;margin:0 auto;padding:16px 30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.45)}

/* ---------- responsive ---------- */
@media(max-width:1020px){
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:920px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #E7ECEA;flex-direction:column;flex-wrap:nowrap;justify-content:flex-start;gap:0;padding:10px 26px 18px;box-shadow:0 20px 40px rgba(24,36,48,.10)}
  .main-nav.open{display:flex}
  .main-nav a{padding:10px 0;font-size:15px;white-space:normal}
  .nav-toggle{display:block}
  .header-inner{padding:0 26px}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .brand img{height:30px}
}