/* ============================================================
   header.css — шапка сайта (sticky, frosted-glass на scroll)
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  transition:
    background-color var(--t-base) var(--ease-out-cubic),
    box-shadow var(--t-base) var(--ease-out-cubic),
    padding var(--t-base) var(--ease-out-cubic);
  padding-block: 1.25rem;
}

/* Прозрачная на hero */
.site-header--transparent {
  background-color: transparent;
}

/* Scrolled state */
.site-header--scrolled {
  background-color: rgba(245,241,236,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 24px rgba(60,45,25,.1);
  padding-block: .75rem;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Лого */
.site-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: .625rem;
  text-decoration: none;
  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.4);
}
.site-logo__mark {
    font-family: var(--ff-display);
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -.04em;
    color: var(--c-ink);
    line-height: 1;
}

.site-header--transparent .site-logo__mark { color: #F0EAE0; }
.site-header--scrolled .site-logo__mark { color: var(--c-ink); }

.site-logo__sub {
    font-family: var(--ff-display);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--c-accent);
    display: none;
    padding-top: .5rem;
    margin-left: -.3rem;
}


@media (min-width: 480px) { .site-logo__sub { display: block; } }

/* Nav */
.site-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: .25rem;
  margin-bottom: 0;
  padding-left: 1.4rem;
}

.site-nav__link {
  padding: .5rem .875rem;
  font-family: var(--ff-accent);
  font-size: .875rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--c-ink-soft);
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background-color var(--t-fast);
  white-space: nowrap;
}
.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--c-accent);
  background-color: rgba(181,137,90,.08);
}
.site-header--transparent .site-nav__link {
  color: rgba(240,234,224,.85);
}
.site-header--transparent .site-nav__link:hover,
.site-header--transparent .site-nav__link.is-active {
  color: #fff;
  background-color: rgba(255,255,255,.1);
}

/* Правый блок */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: .875rem;
  flex-shrink: 0;
}

.header-phone {
  font-family: var(--ff-mono);
  font-size: .9375rem;
  font-weight: 500;
  color: var(--c-ink);
  white-space: nowrap;
  transition: color var(--t-fast);
}
.header-phone:hover { color: var(--c-accent); }
.site-header--transparent .header-phone { color: #F0EAE0; }
.site-header--scrolled .header-phone { color: var(--c-ink); }

/* Burger mobile */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--r-sm);
  transition: background-color var(--t-fast);
  position: absolute;
  margin-top: .3rem;
  right: 5%;
}
.burger:hover { background-color: rgba(181,137,90,.1); }
.burger__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--c-ink);
  border-radius: 2px;
  transform-origin: center;
  transition: transform var(--t-base) var(--ease-out-cubic), opacity var(--t-base);
}
.site-header--transparent .burger__line { background: #f3f3f3; }
.site-header--scrolled .burger__line { background: var(--c-ink); }

.burger[aria-expanded="true"] .burger__line {
  background: #777777;
}
.burger[aria-expanded="true"] .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.burger[aria-expanded="true"] .burger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.burger[aria-expanded="true"] .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 991.98px) {
  .site-nav, .header-phone { display: none; }
  .burger { display: flex; }
}

/* Mobile drawer */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) - 1);
  background: var(--c-bg);
  padding-top: 5rem;
  padding-inline: 1.5rem;
  transform: translateX(100%);
  transition: transform var(--t-slow) var(--ease-out-cubic);
}
.mobile-nav.is-open {
  display: block;
  transform: translateX(0);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  margin-bottom: 2rem;
}

.mobile-nav__link {
  display: block;
  padding: .875rem 1rem;
  font-family: var(--ff-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-line);
  transition: color var(--t-fast), padding-left var(--t-fast);
}
.mobile-nav__link:hover {
  color: var(--c-accent);
  padding-left: 1.5rem;
}

.mobile-nav__contacts {
  padding-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.mobile-nav__phone {
  font-family: var(--ff-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--c-ink);
}