/* ===========================================================================
   layout.css — header, footer, navigation, breadcrumbs
   =========================================================================== */

/* ---- header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(11, 11, 12, 0.78);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), background var(--t-base);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(11, 11, 12, 0.94);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-serif);
  font-size: 24px;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
}

.brand:hover { color: var(--gold); }

.brand__mark {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
}

.brand__name { line-height: 1; padding-top: 2px; }

/* ---- main nav ---- */

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__list {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 960px) {
  .nav__list { display: flex; }
}

.nav__link {
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-mute);
  text-decoration: none;
  position: relative;
  padding: 4px 0;
}

.nav__link:hover { color: var(--text); }

.nav__link.is-active {
  color: var(--text);
}

.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--gold);
}

/* ---- lang switch ---- */

.lang {
  display: inline-flex;
  align-items: center;
  gap: 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  font-weight: 500;
  text-transform: uppercase;
}

.lang__item {
  padding: 6px 8px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--t-fast);
}

.lang__item:hover { color: var(--text); }

.lang__item.is-active {
  color: var(--gold);
}

.lang__sep {
  color: var(--line);
  user-select: none;
}

/* ---- mobile menu trigger ---- */

.menu-toggle {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}

@media (min-width: 960px) {
  .menu-toggle { display: none; }
}

.menu-toggle svg { width: 18px; height: 18px; }

/* ---- mobile menu (full screen) ---- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: var(--space-5);
  transform: translateY(-100%);
  transition: transform var(--t-slow);
  visibility: hidden;
}

.mobile-menu.is-open {
  transform: translateY(0);
  visibility: visible;
}

.mobile-menu__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-7);
}

.mobile-menu__link {
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--line);
}

.mobile-menu__link:hover { color: var(--gold); }

.mobile-menu__footer {
  margin-top: auto;
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
}

body.menu-locked { overflow: hidden; }

/* ---- footer ---- */

.site-footer {
  margin-top: var(--space-9);
  padding: var(--space-8) 0 var(--space-6);
  border-top: 1px solid var(--line);
  background: #07070A;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-7);
}

@media (max-width: 900px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}

@media (max-width: 560px) {
  .site-footer__grid { grid-template-columns: 1fr; gap: var(--space-5); }
}

.site-footer h5 {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 var(--space-4) 0;
}

.site-footer ul li { padding: 4px 0; }
.site-footer ul li a { color: var(--text-mute); font-size: var(--fs-sm); }
.site-footer ul li a:hover { color: var(--text); }

.site-footer__brand-line {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.site-footer__legal {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

.site-footer__legal a { color: var(--text-dim); }
.site-footer__legal a:hover { color: var(--text-mute); }

/* ---- social row ---- */

.socials {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.socials a {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text-mute);
  transition: border-color var(--t-fast), color var(--t-fast);
}

.socials a:hover { border-color: var(--gold); color: var(--gold); }

.socials svg { width: 16px; height: 16px; }

/* ---- breadcrumbs ---- */

.breadcrumbs {
  padding: var(--space-5) 0 0;
  font-size: var(--fs-xs);
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.breadcrumbs a { color: var(--text-dim); text-decoration: none; }
.breadcrumbs a:hover { color: var(--text-mute); }
.breadcrumbs .sep { margin: 0 var(--space-3); color: var(--line); }