/* Header — фаза 2 (skill header-layout) */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: var(--color-header-surface, var(--color-surface));
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-height: var(--header-height);
  margin: 0;
  padding: 0 var(--page-padding-x);
}

/* Step 2: brand */
.header__brand {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.header__brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
  text-decoration: none;
}

.header__brand-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.header__brand-logo {
  display: block;
  width: auto;
  height: var(--header-brand-logo-height);
  max-height: var(--header-brand-logo-height);
}

/* Step 3: nav */
.header__nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header__nav .link--nav + .link--nav {
  margin-left: var(--space-3);
  padding-left: var(--space-3);
  border-left: 1px solid var(--color-border);
}

/* Step 4: search */
.header__search {
  flex: 1 1 auto;
  min-width: 0;
}

.header__search .input {
  width: 100%;
  min-width: 0;
  min-height: calc(var(--control-height-md) - 2 * var(--space-1));
  padding-block: var(--space-1);
}

/* Step 5: slot */
.header__slot {
  flex-shrink: 0;
}

/* Step 6: tools */
.header__tools {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
  margin-left: auto;
}

/* Step 7: responsive */
@media (max-width: 767px) {
  .header__nav,
  .header__search {
    display: none;
  }
}