/* Header styles for ANA-FEL Bartosz Jędrzejczak */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(to bottom, rgba(5, 6, 8, 0.98), rgba(5, 6, 8, 0.9));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.site-header__logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #ffdd7a, var(--color-primary));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: #1a1207;
  box-shadow: var(--shadow-soft);
}

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

.site-header__brand-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-header__brand-tagline {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.25rem;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  border: 1px solid rgba(242, 181, 68, 0.35);
  background-color: rgba(5, 6, 8, 0.9);
  padding: 0.35rem 0.55rem;
  cursor: pointer;
  color: inherit;
}

.site-header__toggle-bar {
  height: 2px;
  width: 100%;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-fast), background-color var(--transition-base);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Desktop nav */
.site-header__nav {
  display: none;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-header__nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  position: relative;
  padding: 0.1rem 0;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-green));
  transition: width var(--transition-base);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-text);
}

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

.site-header__nav-link--primary {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--color-primary), #ffdd7a);
  color: #1a1207;
  box-shadow: var(--shadow-soft);
}

.site-header__nav-link--primary::after {
  display: none;
}

.site-header__nav-link--primary:hover,
.site-header__nav-link--primary:focus-visible {
  background: linear-gradient(135deg, #ffdd7a, var(--color-primary));
  color: #1a1207;
}

/* Mobile nav behavior */
@media (max-width: 767.98px) {
  .site-header__nav {
    display: block;
    position: fixed;
    inset: 0 0 auto 0;
    top: 56px;
    background: radial-gradient(circle at top left, rgba(242, 181, 68, 0.18), transparent 55%), rgba(5, 6, 8, 0.98);
    border-top: 1px solid var(--border-subtle);
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.2rem 1.4rem 1.5rem;
    gap: 0.75rem;
  }

  .site-header__nav-link {
    width: 100%;
    padding: 0.4rem 0;
  }

  .site-header__nav-link--primary {
    align-self: stretch;
    text-align: center;
    margin-top: 0.4rem;
  }

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

  .site-header__toggle--active .site-header__toggle-bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

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

  .site-header__toggle--active .site-header__toggle-bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}

/* Desktop visibility */
@media (min-width: 768px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: block;
  }
}

@media (max-width: 480px) {
  .site-header__brand-name {
    font-size: 0.88rem;
  }

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