/* =========================================================
   header.css — cabeçalho sticky + navegação superior
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.55rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--header-h);
}

/* Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand:hover {
  opacity: 0.92;
}

.brand-mark {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.brand-name span {
  color: var(--color-primary);
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

/* Nav principal */
.main-nav {
  display: none;
  flex: 1 1 auto;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.86rem;
  font-weight: 600;
  min-height: 40px;
  transition: background var(--transition), color var(--transition);
}

.main-nav a:hover {
  background: rgba(245, 130, 31, 0.12);
  color: var(--color-primary);
}

.main-nav a.is-active {
  color: var(--color-primary);
  background: rgba(245, 130, 31, 0.14);
}

.main-nav a.is-active::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 8px var(--color-primary);
}

/* Área de login mock (decorativa) */
.header-login {
  display: none;
  align-items: center;
  gap: 0.45rem;
  margin-left: auto;
  flex-shrink: 0;
}

.login-field {
  width: 108px;
  height: 36px;
  padding: 0 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 0.82rem;
  cursor: not-allowed;
}

.btn-ok {
  min-height: 36px;
  min-width: 52px;
  padding: 0.35rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border: 0;
  border-radius: var(--radius-sm);
  font-weight: 800;
  letter-spacing: 0.04em;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-ok:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.login-links {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  margin-left: 0.35rem;
}

.login-links a {
  font-size: 0.72rem;
  color: var(--color-muted);
  line-height: 1.3;
}

.login-links a:hover {
  color: var(--color-accent);
}

/* Header mobile: CTA + burger */
.header-cta-mobile {
  display: flex;
  gap: 0.45rem;
  margin-left: auto;
  align-items: center;
}

.header-cta-mobile .btn {
  min-height: 40px;
  padding: 0.45rem 0.85rem;
  font-size: 0.82rem;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.nav-toggle-bars {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: background var(--transition);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition), top var(--transition);
}

.nav-toggle-bars::before {
  top: -6px;
}

.nav-toggle-bars::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Menu mobile drawer */
.mobile-nav {
  display: none;
  background: var(--color-dark);
  border-top: 1px solid var(--color-border);
  padding: 0.75rem 1rem 1.15rem;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav ul {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

.mobile-nav a {
  display: block;
  padding: 0.85rem 0.5rem;
  min-height: 48px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
}

.mobile-nav a:hover,
.mobile-nav a.is-active {
  color: var(--color-primary);
}

.mobile-nav-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 0.75rem;
}

.mobile-nav-actions .btn:last-child {
  grid-column: 1 / -1;
}

/* Десктоп. Раньше меню и поля входа включались уже с 601px,
   но на планшетах они не помещались (меню разъезжалось на 3 строки),
   поэтому до 1024px оставляем мобильную шапку с бургером */
@media (min-width: 1025px) {
  .main-nav {
    display: block;
  }

  .nav-toggle {
    display: none;
  }

  .header-cta-mobile {
    display: none;
  }

  .header-login {
    display: flex;
  }

  .mobile-nav,
  .mobile-nav.is-open {
    display: none;
  }
}

/* Телефоны: компактная шапка */
@media (max-width: 600px) {
  .header-inner {
    gap: 0.6rem;
    padding: 0.45rem 0.75rem;
  }

  .brand {
    min-width: 0;
    flex-shrink: 1;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }
}

@media (min-width: 1025px) {
  .main-nav a {
    font-size: 0.9rem;
    padding: 0.55rem 0.85rem;
  }
}

/* Espaço para header sticky em âncoras */
[id] {
  scroll-margin-top: calc(var(--header-h) + 12px);
}