/* Header styles for A-LIG USŁUGI PROJEKTOWE */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.88));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-16);
  gap: var(--space-16);
}

/* Brand */
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  white-space: nowrap;
}

.site-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background:
    conic-gradient(from 180deg at 50% 50%, rgba(56, 189, 248, 0.15), transparent 40%, rgba(56, 189, 248, 0.85)),
    radial-gradient(circle at 10% 0, rgba(8, 47, 73, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(56, 189, 248, 0.7);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9), 0 10px 25px rgba(15, 23, 42, 0.96);
  position: relative;
  overflow: hidden;
}

.site-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 30% 16%;
  border-radius: 4px;
  border: 1px solid rgba(226, 232, 240, 0.75);
  border-top-width: 2px;
  border-bottom-color: transparent;
  transform: skewX(-12deg);
  opacity: 0.9;
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
}

.site-header__brand-title {
  font-size: var(--font-size-lg);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-header__brand-subtitle {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
}

/* Navigation */
.site-header__nav {
  display: flex;
  align-items: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-24);
}

.site-header__nav-link {
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-300);
}

.site-header__nav-link[aria-current="page"] {
  color: #f9fafb;
}

.site-header__nav-item--cta {
  margin-left: var(--space-8);
}

.site-header__cta {
  padding-inline: 18px;
  font-size: var(--font-size-xs);
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.98);
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  color: inherit;
}

.site-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-200);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

/* Toggle animation */
.site-header__toggle--active .site-header__toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.site-header__toggle--active .site-header__toggle-bar:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Mobile layout */
@media (max-width: 768px) {
  .site-header__inner {
    padding-block: var(--space-12);
  }

  .site-header__brand-subtitle {
    display: none;
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 64px;
    background: radial-gradient(circle at top, #020617 0, #020617 70%, #000 100%);
    border-top: 1px solid rgba(15, 23, 42, 0.95);
    border-bottom: 1px solid rgba(15, 23, 42, 0.95);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.85);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .site-header__nav--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-16) clamp(20px, 6vw, 32px) var(--space-20);
    gap: var(--space-12);
  }

  .site-header__nav-item--cta {
    margin-left: 0;
    margin-top: var(--space-8);
  }

  .site-header__cta {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .site-header__brand-title {
    font-size: var(--font-size-sm);
  }

  .site-header__logo-mark {
    width: 32px;
    height: 32px;
  }
}