/* ============================================================
   layout.css — шапка, навигация, мобильное меню, футер,
   хлебные крошки. Сетки — в base.css (.grid, .columns-2).
   ============================================================ */

/* ---------- Шапка ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 14, 0);
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--dur-med) var(--ease-out),
    border-color var(--dur-med) var(--ease-out),
    box-shadow var(--dur-med) var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(11, 11, 14, .82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
  box-shadow: 0 12px 32px -24px rgba(0, 0, 0, .5);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: var(--header-h);
}

/* Логотип */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
  min-height: 44px;
}

.logo__sign {
  width: 40px;
  height: 40px;
  flex: none;
  transition: transform var(--dur-med) var(--ease-soft);
}

.logo:hover .logo__sign { transform: rotate(-6deg); }

.logo__word {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--text-main);
  line-height: 1;
  white-space: nowrap;
}

.logo__word small {
  display: block;
  font-family: var(--font-sans);
  font-size: .62rem;
  font-weight: 600;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--taupe);
  margin-top: 4px;
}

/* Основная навигация */
.site-nav { display: flex; align-items: center; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
  list-style: none;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 8px;
  width: 100%;
  height: 1.5px;
  background: var(--taupe);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform var(--dur-med) var(--ease-soft);
}

.site-nav__link:hover,
.site-nav__link.is-active { color: var(--text-main); }

.site-nav__link:hover::after,
.site-nav__link.is-active::after {
  transform: scaleX(1);
  transform-origin: left center;
}

/* Выпадающий подпункт */
.site-nav__item--parent { position: relative; }

.site-nav__item--parent > .site-nav__link::before {
  content: '';
  width: 6px;
  height: 6px;
  margin-left: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: .6;
  transition: transform var(--dur-fast) var(--ease-out);
}

.site-nav__item--parent:hover > .site-nav__link::before,
.site-nav__item--parent:focus-within > .site-nav__link::before {
  transform: rotate(225deg) translate(-1px, -1px);
}

.site-nav__sub {
  position: absolute;
  top: calc(100% - 4px);
  left: 50%;
  min-width: 220px;
  padding: 10px;
  list-style: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition:
    opacity var(--dur-med) var(--ease-out),
    transform var(--dur-med) var(--ease-soft),
    visibility var(--dur-med);
}

.site-nav__item--parent:hover .site-nav__sub,
.site-nav__item--parent:focus-within .site-nav__sub {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.site-nav__sub .site-nav__link {
  display: flex;
  width: 100%;
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 10px;
  font-weight: 500;
}

.site-nav__sub .site-nav__link::after { display: none; }

.site-nav__sub .site-nav__link:hover {
  background: var(--bg-soft);
  color: var(--text-main);
}

/* CTA в шапке */
.header-cta { flex: none; }

/* Контакты и мессенджеры в шапке */
.header-contacts {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  flex: none;
}

.header-contacts__phone {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}

.header-contacts__phone:hover { color: var(--accent); }

.header-social {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.header-social__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.header-social__link:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.header-social--mobile {
  margin-top: 24px;
  flex-wrap: wrap;
}

.header-social--mobile .header-social__link {
  width: auto;
  height: auto;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
}

/* Бургер */
#menu-toggle {
  display: none;
  position: relative;
  width: 48px;
  height: 48px;
  flex: none;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-card);
  transition: background var(--dur-fast) var(--ease-out);
}

#menu-toggle span {
  position: absolute;
  left: 14px;
  width: 20px;
  height: 1.8px;
  border-radius: 2px;
  background: var(--text-main);
  transition:
    transform var(--dur-med) var(--ease-soft),
    opacity var(--dur-fast) var(--ease-out),
    top var(--dur-med) var(--ease-soft);
}

#menu-toggle span:nth-child(1) { top: 17px; }
#menu-toggle span:nth-child(2) { top: 23px; }
#menu-toggle span:nth-child(3) { top: 29px; }

#menu-toggle.is-open span:nth-child(1) { top: 23px; transform: rotate(45deg); }
#menu-toggle.is-open span:nth-child(2) { opacity: 0; }
#menu-toggle.is-open span:nth-child(3) { top: 23px; transform: rotate(-45deg); }

/* Мобильная панель */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 95;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 24px) clamp(24px, 7vw, 56px) 48px;
  background: var(--bg-main);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition:
    opacity var(--dur-med) var(--ease-out),
    transform var(--dur-med) var(--ease-soft),
    visibility var(--dur-med);
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-nav .site-nav__list,
.mobile-nav__list {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  list-style: none;
}

.mobile-nav .site-nav__link {
  min-height: 44px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 2.4rem);
  font-weight: 500;
  color: var(--text-main);
}

.mobile-nav .site-nav__link::after { bottom: 4px; }

.mobile-nav .site-nav__sub {
  position: static;
  min-width: 0;
  padding: 0 0 8px 20px;
  background: none;
  border: 0;
  box-shadow: none;
  opacity: 1;
  visibility: visible;
  transform: none;
}

.mobile-nav .site-nav__sub .site-nav__link {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.mobile-nav .header-cta { margin-top: 32px; align-self: flex-start; }

body.menu-open { overflow: hidden; }

/* ---------- Футер ---------- */
.site-footer {
  position: relative;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding-top: clamp(56px, 7vw, 88px);
  overflow: hidden;
}

.site-footer::before {
  /* тонкая арка-акцент в углу футера */
  content: '';
  position: absolute;
  top: -140px;
  right: -140px;
  width: 340px;
  height: 340px;
  border: 1px solid var(--sand);
  border-radius: 50%;
  opacity: .5;
  pointer-events: none;
}

.site-footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: clamp(32px, 4vw, 56px);
  padding-bottom: clamp(40px, 5vw, 64px);
}

.site-footer__col { min-width: 0; }

.site-footer__col .logo { margin-bottom: 18px; }

.site-footer__col p {
  font-size: .92rem;
  max-width: 34ch;
}

.site-footer__title {
  font-family: var(--font-sans);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--taupe);
  margin-bottom: 18px;
}

.site-footer__col ul { list-style: none; }

.site-footer__link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: .94rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.site-footer__link:hover {
  color: var(--text-main);
  transform: translateX(4px);
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-block: 24px;
  border-top: 1px solid var(--border);
  font-size: .85rem;
  color: var(--text-secondary);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  list-style: none;
}

.site-footer__legal a {
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out);
}

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

/* ---------- Хлебные крошки ---------- */
.breadcrumbs {
  padding-top: 24px;
}

.breadcrumbs__list,
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  list-style: none;
  font-size: .82rem;
  font-weight: 500;
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
}

.breadcrumbs__link {
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out);
}

.breadcrumbs__link:hover { color: var(--taupe-deep); }

.breadcrumbs__sep {
  color: var(--sand);
  user-select: none;
}

.breadcrumbs__item[aria-current],
.breadcrumbs__item:last-child {
  color: var(--text-main);
}