.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid #e9eeeb;
}
.header-inner {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.025em;
}
.brand-symbol {
  background: #193d35;
  color: #dcf77d;
  display: grid;
  place-items: center;
  width: 47px;
  height: 47px;
  border-radius: 9px;
  font-weight: 800;
  letter-spacing: -0.06em;
  font-size: 25px;
}
.brand small,
.header-phone small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: #667570;
  letter-spacing: 0;
  margin-top: 1px;
}
.header nav {
  display: flex;
  gap: 25px;
  font-size: 14px;
}
.header nav a:hover {
  color: #427c51;
}
.header-phone {
  font-weight: 700;
  font-size: 17px;
  text-align: right;
  white-space: nowrap;
}
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid #ddd;
  border-radius: 6px;
  width: 44px;
  height: 44px;
}
@media (max-width: 1000px) {
  .header nav {
    gap: 13px;
    font-size: 13px;
  }
  .brand {
    font-size: 16px;
  }
  .header-inner {
    gap: 15px;
  }
}
@media (max-width: 760px) {
  .header-inner {
    min-height: 76px;
  }
  .header nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    padding: 24px;
    background: #fff;
    border-bottom: 1px solid #ddd;
    flex-direction: column;
    font-size: 17px;
    gap: 20px;
  }
  .header nav.open {
    display: flex;
  }
  .header-phone {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .brand {
    font-size: 17px;
  }
}