/* =========================================================
   HEADER / NAVIGATION
   Single collapse breakpoint: 980px. Do not add a second one.
   ========================================================= */

.site-header{
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255,255,255,0.90);
  backdrop-filter: blur(14px) saturate(1.25);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.site-header.is-scrolled{
  box-shadow: 0 4px 28px rgba(27,20,15,0.08);
  background: rgba(255,255,255,0.98);
}

.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap: 24px; height: 82px;
}

.brand{
  display:flex; align-items:center; gap:12px; flex-shrink:0; text-decoration:none;
  min-width:0;
}
.brand .brand-logo{
  height: 70px; object-fit: contain; flex-shrink:0;
}
.brand-text{ font-family: var(--font-display); line-height:1.05; }
.brand-text .b1{ display:block; font-size:21px; font-weight:700; color: var(--ink); letter-spacing:0.01em; }
.brand-text .b2{ display:block; font-size:12px; font-weight:600; color: var(--primary-dk); letter-spacing:0.06em; text-transform:uppercase; margin-top:2px; }

/* --- Primary nav --- */
.primary-nav{ display:flex; align-items:center; gap:2px; }
.nav-link{
  display:flex; align-items:center; padding: 10px 18px;
  font-size: 14.5px; font-weight: 700; color: var(--ink);
  border-radius: 10px; text-decoration:none;
  transition: color 0.25s ease, background 0.25s ease;
  position:relative;
}
.nav-link:hover{ color: var(--primary-dk); background: rgba(242,107,15,0.07); }
.nav-link.is-current{ color: var(--primary-dk); }
.nav-link.is-current::after{
  content:""; position:absolute; left:18px; right:18px; bottom:5px;
  height:2.5px; background: var(--primary); border-radius:2px;
}

.header-actions{ display:flex; align-items:center; gap:14px; }

/* --- Hamburger --- */
.menu-toggle{
  display:none; align-items:center; justify-content:center;
  background: transparent; border:none; cursor:pointer;
  width:44px; height:44px; border-radius:8px;
  transition: background 0.2s ease;
}
.menu-toggle:hover{ background: rgba(27,20,15,0.05); }
.menu-toggle svg{ width:26px; height:26px; stroke: var(--ink); }

@media (max-width: 980px){
  .primary-nav{ display:none; }
  .menu-toggle{ display:flex; }
}

@media (max-width: 560px){
  .header-inner{ height: 68px; gap: 12px; }
  .brand .brand-logo{ height: 50px; }
  .header-actions{ gap: 8px; }
  .header-actions .btn-sm{ padding: 9px 14px; font-size: 12.5px; }
  .menu-toggle{ width: 40px; height: 40px; }
  .menu-toggle svg{ width: 22px; height: 22px; }
}

@media (max-width: 380px){
  .header-actions .btn-sm{ padding: 8px 11px; font-size: 11.5px; }
}

/* =========================================================
   MOBILE NAV DRAWER
   ========================================================= */
.mobile-nav{
  position: fixed; inset:0; background: var(--paper); z-index:600;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow-y:auto; display:flex; flex-direction:column;
}
.mobile-nav.is-open{ transform: translateX(0); }

.mobile-nav-head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--line); flex-shrink:0;
}
.mobile-nav-head .brand-logo{ width:36px; height:36px; object-fit:contain; }
.mobile-nav-close{
  width:40px; height:40px; display:flex; align-items:center; justify-content:center;
  border-radius:50%; background:transparent; border:none; color:var(--ink);
  transition: background 0.25s ease, color 0.25s ease; cursor:pointer;
}
.mobile-nav-close:hover{ background: rgba(242,107,15,0.08); color: var(--primary-dk); }
.mobile-nav-close svg{ width:20px; height:20px; }

.mobile-nav-body{ padding: 12px 24px 40px; flex:1; -webkit-overflow-scrolling: touch; }
.mobile-nav-body a.mobile-link{
  display:block; padding: 18px 4px; font-size: 19px; font-weight:700;
  font-family: var(--font-display); color: var(--ink);
  border-bottom: 1px solid var(--line); text-decoration:none;
  transition: color 0.25s ease;
}
.mobile-nav-body a.mobile-link:hover{ color: var(--primary-dk); }
.mobile-nav-body a.mobile-link.is-current{ color: var(--primary-dk); }

.mobile-nav-cta{ margin-top:26px; display:flex; flex-direction:column; gap:12px; }
.mobile-nav-cta .btn{ justify-content:center; width:100%; }

body.nav-open{ overflow:hidden; }