/* ==========================================================================
   layout.css — site chrome: header, navigation, mobile drawer, footer.
   ========================================================================== */

/* ============================================================== header === */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-header);
  block-size: var(--header-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-block-end: 1px solid transparent;
  transition: background var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}
/* Browsers without color-mix still get a solid, legible bar. */
@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .site-header { background: rgba(251, 249, 245, 0.92); }
}

.site-header.is-scrolled {
  border-block-end-color: var(--line);
  box-shadow: var(--sh-sm);
}

.site-header__inner {
  inline-size: 100%;
  max-inline-size: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}

/* ------------------------------------------------------------- brand ---- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
  transition: opacity var(--t-fast) var(--ease);
}
.brand:hover { opacity: 0.78; }

.brand__mark {
  inline-size: 38px;
  block-size: 38px;
  flex-shrink: 0;
  border-radius: var(--r-sm);
  background: linear-gradient(145deg, var(--ink-3), var(--ink));
  display: grid;
  place-items: center;
  box-shadow: var(--sh-sm);
}
.brand__mark svg { inline-size: 22px; block-size: 22px; }

.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name {
  font-family: var(--font-display);
  font-size: 1.34rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
  white-space: nowrap;
}
.brand__tag {
  font-size: 0.58rem;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--gold-deep);
  font-weight: 600;
  white-space: nowrap;
}
:root[lang="ar"] .brand__tag { text-transform: none; font-size: 0.68rem; }

/* --------------------------------------------------------- desktop nav -- */

.nav { display: flex; align-items: center; gap: var(--sp-1); margin-inline-start: auto; }

.nav__link {
  position: relative;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-soft);
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.nav__link:hover { color: var(--ink); background: var(--gold-wash); }

/* Active page gets a short gold underline that grows from the centre. */
.nav__link::after {
  content: '';
  position: absolute;
  inset-block-end: 2px;
  /* inset-inline + auto margins centres without a translate, so it mirrors
     correctly under RTL (a -50% translate would not). */
  inset-inline: 0;
  margin-inline: auto;
  inline-size: 0;
  block-size: 2px;
  border-radius: var(--r-pill);
  background: var(--gold);
  transition: inline-size var(--t-base) var(--ease-out);
}
.nav__link.is-active { color: var(--ink); font-weight: 600; }
.nav__link.is-active::after { inline-size: 18px; }

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-inline-start: var(--sp-4);
  flex-shrink: 0;
}

/* ------------------------------------------------------ language switch -- */

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
}
.lang-switch__btn {
  padding: 5px 13px;
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--t-base) var(--ease), background var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.lang-switch__btn:hover { color: var(--ink); }
.lang-switch__btn[aria-pressed="true"] {
  background: var(--bg-elevated);
  color: var(--ink);
  box-shadow: var(--sh-xs);
}

/* ------------------------------------------------------------ hamburger -- */

.hamburger {
  display: none;
  inline-size: 42px;
  block-size: 42px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  place-items: center;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.hamburger:hover { border-color: var(--line-gold); background: var(--gold-wash); }

.hamburger__box { inline-size: 18px; block-size: 12px; position: relative; }
.hamburger__bar {
  position: absolute;
  inset-inline: 0;
  block-size: 1.6px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform var(--t-base) var(--ease-out), opacity var(--t-fast) var(--ease);
}
.hamburger__bar:nth-child(1) { inset-block-start: 0; }
.hamburger__bar:nth-child(2) { inset-block-start: 5.2px; }
.hamburger__bar:nth-child(3) { inset-block-start: 10.4px; }

.hamburger[aria-expanded="true"] .hamburger__bar:nth-child(1) { transform: translateY(5.2px) rotate(45deg); }
.hamburger[aria-expanded="true"] .hamburger__bar:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] .hamburger__bar:nth-child(3) { transform: translateY(-5.2px) rotate(-45deg); }

/* ------------------------------------------------------- mobile drawer -- */

.drawer-scrim {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-drawer) - 1);
  background: rgba(20, 16, 12, 0.5);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base) var(--ease), visibility var(--t-base);
}
.drawer-scrim.is-open { opacity: 1; visibility: visible; }

.drawer {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  z-index: var(--z-drawer);
  inline-size: min(340px, 86vw);
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border-inline-start: 1px solid var(--line);
  box-shadow: var(--sh-xl);
  /* translate uses a logical sign flipped for RTL in rtl.css */
  transform: translateX(101%);
  visibility: hidden;
  transition: transform var(--t-slow) var(--ease-out), visibility var(--t-slow);
}
.drawer.is-open { transform: none; visibility: visible; }

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  border-block-end: 1px solid var(--line);
  min-block-size: var(--header-h);
}
.drawer__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}
.drawer__close {
  inline-size: 38px; block-size: 38px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  color: var(--text-muted);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.drawer__close:hover { background: var(--paper-2); color: var(--ink); }

.drawer__nav { padding: var(--sp-4); display: flex; flex-direction: column; gap: 2px; }

.drawer__link {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--text-soft);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
  /* staggered entrance, driven by --i set inline */
  opacity: 0;
  transform: translateY(10px);
}
.drawer.is-open .drawer__link {
  animation: fade-up var(--t-base) var(--ease-out) forwards;
  animation-delay: calc(90ms + var(--i, 0) * 55ms);
}
.drawer__link:hover { background: var(--paper-2); color: var(--ink); }
.drawer__link.is-active {
  background: var(--gold-wash);
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--gold);
}
.drawer__link svg { inline-size: 19px; block-size: 19px; color: var(--gold-deep); flex-shrink: 0; }

.drawer__foot {
  margin-block-start: auto;
  padding: var(--sp-5);
  border-block-start: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.drawer__foot-label {
  font-size: var(--fs-2xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}
:root[lang="ar"] .drawer__foot-label { text-transform: none; }
.drawer__foot .lang-switch { align-self: flex-start; }

@media (max-width: 940px) {
  .nav, .header__actions .lang-switch { display: none; }
  .hamburger { display: grid; }
  .header__actions { margin-inline-start: auto; }
}

/* ============================================================== footer === */

.site-footer {
  background: var(--dark-bg);
  color: var(--dark-text-soft);
  padding-block: var(--sp-9) var(--sp-5);
  margin-block-start: auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: var(--sp-7) var(--sp-6);
  padding-block-end: var(--sp-7);
  border-block-end: 1px solid var(--dark-line);
}
@media (max-width: 900px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer__grid { grid-template-columns: 1fr; gap: var(--sp-6); } }

.footer__brand .brand__name { color: var(--dark-text); }
.footer__brand .brand__mark {
  background: linear-gradient(145deg, var(--gold), var(--gold-deep));
}
.footer__blurb {
  margin-block-start: var(--sp-4);
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  color: var(--dark-muted);
  max-inline-size: 34ch;
}

.footer__title {
  font-size: var(--fs-2xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-block-end: var(--sp-4);
}
:root[lang="ar"] .footer__title { text-transform: none; font-size: var(--fs-xs); }

.footer__list { display: flex; flex-direction: column; gap: var(--sp-3); }
.footer__list a, .footer__list span {
  font-size: var(--fs-sm);
  color: var(--dark-muted);
  transition: color var(--t-fast) var(--ease), padding-inline-start var(--t-fast) var(--ease);
}
.footer__list a:hover { color: var(--dark-text); padding-inline-start: 5px; }

.footer__socials { display: flex; gap: var(--sp-3); margin-block-start: var(--sp-2); }
.social-chip {
  inline-size: 40px; block-size: 40px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  border: 1px solid var(--dark-line);
  color: var(--dark-text-soft);
  transition: transform var(--t-base) var(--ease-spring),
              background var(--t-base) var(--ease),
              color var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease);
}
.social-chip:hover {
  transform: translateY(-3px);
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}
.social-chip svg { inline-size: 19px; block-size: 19px; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
  padding-block-start: var(--sp-5);
  font-size: var(--fs-xs);
  color: var(--dark-muted);
}
.footer__bottom a { color: var(--dark-text-soft); }
.footer__bottom a:hover { color: var(--gold-bright); }

/* ---------------------------------------------------------- page header -- */
/* The compact banner at the top of Products / Auctions / Contact. */

.page-hero {
  position: relative;
  padding-block: clamp(2.6rem, 1.6rem + 4vw, 4.6rem) clamp(2rem, 1.4rem + 2.6vw, 3.2rem);
  background:
    radial-gradient(120% 140% at 50% 0%, var(--paper-2) 0%, var(--paper) 62%);
  border-block-end: 1px solid var(--line);
  overflow: hidden;
}
.page-hero::after {
  /* faint gold arc, purely decorative */
  content: '';
  position: absolute;
  inset-block-start: -60%;
  inset-inline: 0;
  margin-inline: auto;
  inline-size: min(900px, 120vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--line-gold);
  opacity: 0.5;
  pointer-events: none;
}
.page-hero__inner { position: relative; text-align: center; }
.page-hero__lede {
  margin: var(--sp-4) auto 0;
  max-inline-size: 58ch;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

/* Body layout ensures the footer sits at the bottom on short pages. */
body { display: flex; flex-direction: column; }
main { flex: 1 0 auto; }