/* Header styles for Biuro Podatkowe FOP Lilla Borowska */

.afp-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(5, 7, 20, 0.96), rgba(5, 7, 20, 0.88));
  border-bottom: 1px solid rgba(148, 163, 253, 0.35);
}

.afp-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);
}

/* Branding */
.afp-header__branding {
  display: flex;
  align-items: center;
  min-width: 0;
}

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

.afp-header__logo-mark {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 10%, var(--color-accent-gold), transparent 55%),
              radial-gradient(circle at 70% 80%, var(--color-accent-emerald), transparent 55%),
              linear-gradient(145deg, #1d2448, #050714);
  box-shadow: 0 0 24px rgba(92, 123, 255, 0.7);
  overflow: hidden;
}

.afp-header__logo-orb {
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  border: 2px solid rgba(244, 244, 255, 0.8);
  box-shadow: 0 0 18px rgba(129, 140, 248, 0.8);
}

.afp-header__text-group {
  display: flex;
  flex-direction: column;
}

.afp-header__site-title {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.afp-header__site-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Nav */
.afp-header__nav {
  display: flex;
}

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

.afp-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.4rem 0;
}

.afp-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent-emerald), var(--color-accent-purple));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.afp-header__nav-link:hover::after,
.afp-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

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

.afp-header__cta {
  font-size: var(--font-size-xs);
  white-space: nowrap;
}

/* Toggle (mobile) */
.afp-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding-inline: 0.9rem;
}

.afp-header__toggle-text {
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.afp-header__toggle-icon {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.afp-header__toggle-line {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}

/* Mobile layout */
@media (max-width: 768px) {
  .afp-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

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

  .afp-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(92, 123, 255, 0.22), transparent 55%),
                linear-gradient(180deg, rgba(5, 7, 20, 0.98), rgba(5, 7, 20, 0.97));
    border-bottom: 1px solid rgba(148, 163, 253, 0.35);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .afp-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
  }

  .afp-header__nav-item--cta {
    width: 100%;
    margin-left: 0;
  }

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

  .afp-header--open .afp-header__nav {
    opacity: 1;
    transform: scaleY(1);
    pointer-events: auto;
  }

  .afp-header--open .afp-header__toggle-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .afp-header--open .afp-header__toggle-line:nth-child(2) {
    opacity: 0;
    width: 16px;
  }

  .afp-header--open .afp-header__toggle-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}

/* Small screens: hide tagline if needed */
@media (max-width: 520px) {
  .afp-header__site-tagline {
    display: none;
  }
}