/* =========================================================================
   PRIME.FINDS — Layout (header, nav, footer, page shell)
   ========================================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  height: 76px;
  background: rgba(10, 10, 11, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-standard),
              background var(--duration-base) var(--ease-standard),
              height var(--duration-base) var(--ease-standard);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(8, 8, 9, 0.92);
  height: 64px;
}

.site-header__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  flex-shrink: 0;
}

.brand-logo img { height: 26px; width: auto; }
.brand-logo .brand-logo__mark-only { display: none; height: 30px; }

.main-nav {
  display: none;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.main-nav__link {
  position: relative;
  font-size: var(--fs-body-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-mid);
  text-transform: uppercase;
  color: var(--color-text-dim);
  padding-block: var(--space-2xs);
  transition: color var(--duration-fast) var(--ease-standard);
}

.main-nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-standard);
}

.main-nav__link:hover,
.main-nav__link:focus-visible,
.main-nav__link.is-active {
  color: var(--color-text);
}
.main-nav__link:hover::after,
.main-nav__link:focus-visible::after,
.main-nav__link.is-active::after {
  transform: scaleX(1);
}

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

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  color: var(--color-text);
  transition: border-color var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard);
}
.icon-btn:hover { border-color: var(--color-gold); background: var(--color-gold-wash); }
.icon-btn svg { width: 18px; height: 18px; }

.hamburger-btn {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
}
.hamburger-btn span {
  width: 16px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--duration-base) var(--ease-standard), opacity var(--duration-fast);
}
.hamburger-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (min-width: 900px) {
  .main-nav { display: block; }
  .hamburger-btn { display: none; }
}

/* ---- Mobile menu overlay ---- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  padding: var(--space-lg) var(--container-pad) var(--space-xl);
  transform: translateY(-100%);
  transition: transform var(--duration-slow) var(--ease-standard);
  visibility: hidden;
}
.mobile-menu.is-open {
  transform: translateY(0);
  visibility: visible;
}
.mobile-menu__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
}
.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.mobile-menu__link {
  font-family: var(--font-display);
  font-size: var(--fs-display-sm);
  color: var(--color-text);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration-slow) var(--ease-standard), transform var(--duration-slow) var(--ease-standard);
}
.mobile-menu.is-open .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}
.mobile-menu__link:nth-child(1) { transition-delay: 60ms; }
.mobile-menu__link:nth-child(2) { transition-delay: 110ms; }
.mobile-menu__link:nth-child(3) { transition-delay: 160ms; }
.mobile-menu__link:nth-child(4) { transition-delay: 210ms; }
.mobile-menu__link:nth-child(5) { transition-delay: 260ms; }

.mobile-menu__footer {
  margin-top: auto;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-faint);
  font-size: var(--fs-body-sm);
}

body.menu-open { overflow: hidden; }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-3xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
}

.footer-brand__tagline {
  color: var(--color-text-dim);
  margin-top: var(--space-sm);
  max-width: 32ch;
}

.footer-heading {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-sm);
}

.footer-links { display: flex; flex-direction: column; gap: var(--space-2xs); }
.footer-links a {
  color: var(--color-text-dim);
  font-size: var(--fs-body-sm);
  transition: color var(--duration-fast) var(--ease-standard);
}
.footer-links a:hover { color: var(--color-gold); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-faint);
  font-size: var(--fs-caption);
}

.footer-social {
  display: flex;
  gap: var(--space-xs);
}
.footer-social a,
.footer-social span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  transition: border-color var(--duration-fast) var(--ease-standard), color var(--duration-fast);
}
.footer-social a:hover { border-color: var(--color-gold); color: var(--color-gold); }
.footer-social span[aria-disabled="true"] { color: var(--color-text-faint); cursor: default; }
.footer-social svg { width: 16px; height: 16px; }

/* ---- Page hero shells (category / static pages) ---- */
.page-hero {
  padding-block: var(--space-2xl) var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-3xs);
  font-size: var(--fs-caption);
  color: var(--color-text-faint);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
}
.breadcrumbs a { color: var(--color-text-faint); }
.breadcrumbs a:hover { color: var(--color-gold); }
.breadcrumbs .sep { opacity: 0.5; }

/* ---- Grids ---- */
.grid-products {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
@media (max-width: 1200px) { .grid-products { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 860px) { .grid-products { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); } }
@media (max-width: 480px) { .grid-products { grid-template-columns: 1fr 1fr; gap: var(--space-xs); } }

.grid-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}
@media (max-width: 1100px) { .grid-categories { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .grid-categories { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .grid-categories { grid-template-columns: 1fr; } }

.narrow {
  max-width: 860px;
}