/* ==========================================================================
   Header / Nav / Mobile menu / Search overlay
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky-nav);
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: oklch(8% 0.004 260 / 0.72);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid oklch(100% 0 0 / 0.07);
  transition: height var(--dur-base) var(--ease-standard);
}
.site-header.is-scrolled { height: var(--header-h-scrolled); box-shadow: var(--shadow-md); }

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  height: 60%;
  flex-shrink: 0;
}
.brand img { height: 100%; width: auto; }

.main-nav {
  display: none;
  align-items: center;
  gap: var(--sp-1);
}
.main-nav a {
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--ink-on-dark-dim);
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast), background-color var(--dur-fast);
}
.main-nav a:hover { color: var(--ink-on-dark); background: oklch(100% 0 0 / 0.06); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  color: var(--ink-on-dark);
  transition: background-color var(--dur-fast);
}
.icon-btn:hover { background: oklch(100% 0 0 / 0.08); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn svg { width: 21px; height: 21px; }

.cart-count {
  position: absolute;
  top: 2px; right: 2px;
  min-width: 17px; height: 17px;
  padding: 0 3px;
  border-radius: var(--radius-pill);
  background: var(--red-500);
  color: oklch(100% 0 0);
  font-size: 10px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transform: scale(0);
  transition: transform var(--dur-fast) var(--ease-out);
}
.cart-count.is-visible { transform: scale(1); }

.hamburger {
  display: inline-flex;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border-radius: 50%;
}
.hamburger:hover { background: oklch(100% 0 0 / 0.08); }
.hamburger-lines { position: relative; width: 20px; height: 14px; }
.hamburger-lines span {
  position: absolute; left: 0; width: 100%; height: 2px;
  background: currentColor; border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-standard), opacity var(--dur-base) var(--ease-standard), top var(--dur-base) var(--ease-standard);
}
.hamburger-lines span:nth-child(1) { top: 0; }
.hamburger-lines span:nth-child(2) { top: 6px; }
.hamburger-lines span:nth-child(3) { top: 12px; }
.menu-open .hamburger-lines span:nth-child(1) { top: 6px; transform: rotate(45deg); }
.menu-open .hamburger-lines span:nth-child(2) { opacity: 0; }
.menu-open .hamburger-lines span:nth-child(3) { top: 6px; transform: rotate(-45deg); }

@media (min-width: 1024px) {
  .main-nav { display: flex; }
  .hamburger { display: none; }
}

/* ---- Mobile menu drawer ---- */
.mobile-menu-scrim {
  position: fixed; inset: 0;
  background: oklch(0% 0 0 / 0.55);
  z-index: var(--z-drawer-scrim);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-standard);
}
.mobile-menu-scrim.is-open { opacity: 1; pointer-events: auto; }

.mobile-menu {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(85vw, 360px);
  background: var(--bg-900);
  border-left: 1px solid var(--line-dark);
  z-index: var(--z-drawer);
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease-out);
  display: flex;
  flex-direction: column;
  padding-top: calc(var(--safe-t) + var(--sp-5));
  padding-bottom: calc(var(--safe-b) + var(--sp-5));
}
.mobile-menu.is-open { transform: translateX(0); }

.mobile-menu-head {
  display: flex; align-items: center; justify-content: space-between;
  padding-inline: var(--sp-5);
  margin-bottom: var(--sp-4);
}
.mobile-menu-body { overflow-y: auto; padding-inline: var(--sp-5); flex: 1; }
.mobile-menu-body a {
  display: flex; align-items: center;
  padding: var(--sp-4) 0;
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 600;
  border-bottom: 1px solid var(--line-dark-soft);
  color: var(--ink-on-dark);
}
.mobile-menu-foot {
  padding: var(--sp-5);
  border-top: 1px solid var(--line-dark-soft);
  display: flex; flex-direction: column; gap: var(--sp-3);
}
.mobile-menu-foot .contact-line {
  display: flex; align-items: center; gap: var(--sp-2);
  color: var(--ink-on-dark-dim); font-size: var(--fs-sm);
}

/* ---- Search overlay ---- */
.search-overlay {
  position: fixed; inset: 0;
  background: oklch(8% 0.004 260 / 0.97);
  backdrop-filter: blur(20px);
  z-index: var(--z-modal);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard);
  padding-top: calc(var(--safe-t) + var(--sp-6));
}
.search-overlay.is-open { opacity: 1; pointer-events: auto; transform: none; }

.search-overlay-inner { max-width: 720px; margin-inline: auto; padding-inline: var(--sp-5); }
.search-input-row { display: flex; align-items: center; gap: var(--sp-3); }
.search-input-row input {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--line-dark);
  color: var(--ink-on-dark);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1rem + 1.5vw, 2rem);
  padding-block: var(--sp-3);
  transition: border-color var(--dur-fast);
}
.search-input-row input:focus { outline: none; border-color: var(--red-500); }
.search-input-row input::placeholder { color: var(--ink-on-dark-faint); }

.search-results { margin-top: var(--sp-6); display: grid; gap: var(--sp-2); max-height: 60vh; overflow-y: auto; }
.search-result-item {
  display: flex; align-items: center; gap: var(--sp-4);
  padding: var(--sp-3); border-radius: var(--radius-md);
  transition: background-color var(--dur-fast);
}
.search-result-item:hover, .search-result-item:focus-visible { background: oklch(100% 0 0 / 0.06); }
.search-result-item img { width: 52px; height: 52px; object-fit: contain; background: oklch(100% 0 0); border-radius: var(--radius-sm); flex-shrink: 0; }
.search-result-item .sr-name { font-weight: 600; font-size: var(--fs-sm); }
.search-result-item .sr-cat { font-size: var(--fs-xs); color: var(--ink-on-dark-faint); }
.search-result-item .sr-price { margin-left: auto; }

.search-empty { text-align: center; padding: var(--sp-12) 0; color: var(--ink-on-dark-faint); }
.search-hint { margin-top: var(--sp-8); }
.search-hint-label { font-size: var(--fs-xs); color: var(--ink-on-dark-faint); margin-bottom: var(--sp-3); text-transform: uppercase; letter-spacing: 0.08em; }
.search-hint-chips { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.search-hint-chips button {
  padding: var(--sp-2) var(--sp-4); border-radius: var(--radius-pill);
  background: oklch(100% 0 0 / 0.06); border: 1px solid oklch(100% 0 0 / 0.12);
  font-size: var(--fs-sm);
}