/*
 * Header component styles.
 * Scoped to .site-header and related classes.
 */

.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--color-owsiana-biel);
  border-block-end: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-card);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  padding-block: var(--space-3);
  min-height: 64px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color-espresso);
}

.site-header__brand:hover {
  text-decoration: none;
  color: var(--color-espresso);
}

.site-header__logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  letter-spacing: 0.05em;
}

.site-header__brand-line {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
}

.site-header__brand-subline {
  font-size: var(--text-caption-size);
  letter-spacing: 0.08em;
  color: var(--color-srebrna-lza);
  text-transform: uppercase;
}

.site-header__nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-item {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-1);
  font-size: var(--text-body-s-size);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-espresso);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-pistacjowa-zielen);
  text-decoration: underline;
  text-decoration-color: var(--color-pistacjowa-zielen);
  text-underline-offset: 3px;
}

.site-header__nav-link:focus-visible {
  outline: 2px solid var(--color-pistacjowa-zielen);
  outline-offset: 2px;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-xl);
  background-color: var(--color-pistacjowa-zielen);
  color: var(--color-espresso);
  font-weight: 600;
  font-size: var(--text-body-s-size);
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.site-header__cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
  background-color: #9db892;
  color: var(--color-espresso);
  text-decoration: none;
}

.site-header__cta:focus-visible {
  outline: 2px solid var(--color-pistacjowa-zielen);
  outline-offset: 2px;
}

.site-header__menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  background-color: transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-header__menu-toggle:hover {
  background-color: var(--color-mleczna-mgla);
}

.site-header__menu-toggle:focus-visible {
  outline: 2px solid var(--color-pistacjowa-zielen);
  outline-offset: 2px;
}

.site-header__menu-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-espresso);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-toggle-line:nth-child(2) {
  opacity: 0;
}

.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Desktop breakpoint: show full navigation until it becomes crowded */
@media (min-width: 1024px) {
  .site-header__inner {
    padding-inline: var(--container-padding-desktop);
  }

  .site-header__logo {
    width: 36px;
    height: 36px;
  }

  .site-header__brand-line {
    font-size: 1.125rem;
  }

  .site-header__nav-list {
    gap: var(--space-5);
  }

  .site-header__nav-link {
    font-size: var(--text-body-s-size);
  }

  .site-header__cta {
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-body-m-size);
  }
}

/* Mobile / tablet layout */
@media (max-width: 1023px) {
  .site-header__inner {
    flex-wrap: wrap;
    min-height: 56px;
  }

  .site-header__brand {
    order: 1;
  }

  .site-header__actions {
    order: 2;
  }

  .site-header__menu-toggle {
    display: flex;
  }

  .site-header__cta {
    display: none;
  }

  .site-header__nav {
    order: 3;
    flex-basis: 100%;
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-owsiana-biel);
    border-block-end: 1px solid var(--color-border-subtle);
    box-shadow: var(--shadow-card);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-menu), visibility var(--transition-menu);
    visibility: hidden;
  }

  .site-header__nav.is-open {
    max-height: calc(100vh - 56px);
    overflow-y: auto;
    visibility: visible;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-3) var(--container-padding-mobile);
  }

  .site-header__nav-item {
    border-block-end: 1px solid var(--color-border-subtle);
  }

  .site-header__nav-item:last-child {
    border-block-end: none;
  }

  .site-header__nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-1);
    font-size: var(--text-body-m-size);
    text-transform: none;
    letter-spacing: 0;
  }

  .site-header__nav-link::after {
    content: "\f105";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: var(--text-body-s-size);
    color: var(--color-srebrna-lza);
  }
}

/* Very small screens: reduce brand text */
@media (max-width: 480px) {
  .site-header__brand-text {
    display: none;
  }

  .site-header__logo {
    width: 28px;
    height: 28px;
  }
}