/* Header component styles for DROM "PIOTR KOMOROWSKI" */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: radial-gradient(circle at 0 0, rgba(30, 136, 255, 0.18), rgba(5, 8, 20, 0.96));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}

.site-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.site-header__logo-mark {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 16px;
  background: radial-gradient(circle at 30% 0, #4fb5ff, var(--color-primary-strong));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.site-header__logo-initial {
  font-family: "Space Grotesk", var(--font-sans);
  font-weight: 600;
  font-size: 1.25rem;
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.site-header__brand-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__brand-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .site-header__brand-name {
    white-space: normal;
  }
  .site-header__brand-tagline {
    display: none;
  }
}

/* Navigation */
.site-header__nav {
  margin-left: auto;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.35rem 0;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-strong));
  transition: width var(--transition-base);
}

.site-header__nav-link:focus-visible::after,
.site-header__nav-link:hover::after {
  width: 100%;
}

.site-header__nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 999px;
}

.site-header__nav-item--cta {
  margin-left: var(--space-2);
}

.site-header__cta {
  padding-inline: 1.25rem;
  font-size: var(--font-size-xs);
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(8, 12, 30, 0.9);
  align-items: center;
  justify-content: center;
  padding: 0;
}

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

.site-header__toggle-bar + .site-header__toggle-bar {
  margin-top: 4px;
}

.site-header--menu-open .site-header__toggle-bar:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.site-header--menu-open .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header--menu-open .site-header__toggle-bar:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* Mobile layout */
@media (max-width: 880px) {
  .site-header__toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .site-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 60px;
    background: radial-gradient(circle at 0 0, rgba(30, 136, 255, 0.18), rgba(3, 6, 18, 0.98));
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-6);
    gap: var(--space-3);
    background: #141a30;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }

  .site-header__nav-item--cta {
    width: 100%;
    margin-left: 0;
    margin-top: var(--space-2);
  }

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

  .site-header--menu-open .site-header__nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

@media (max-width: 480px) {
  .site-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .site-header__logo-mark {
    width: 34px;
    height: 34px;
  }

  .site-header__brand-name {
    font-size: 0.7rem;
  }
}

/* Helper class for scroll lock when mobile menu open */
.site-header--lock-scroll {
  overflow: hidden;
}