/* Header styles for PomoCodex */

.pcx-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(to bottom, rgba(5, 8, 22, 0.98), rgba(5, 8, 22, 0.96));
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border-subtle);
}

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

/* Brand */
.pcx-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

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

.pcx-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--color-primary), var(--color-accent));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.pcx-header__logo-wheel {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(15, 23, 42, 0.95);
  box-shadow: inset 0 0 0 2px rgba(15, 23, 42, 0.8);
}

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

.pcx-header__brand-name {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

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

/* Navigation */
.pcx-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-6);
}

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

.pcx-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.4rem 0;
}

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

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

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

.pcx-header__cta {
  display: flex;
  align-items: center;
}

.pcx-header__cta-btn {
  font-size: var(--font-size-xs);
  padding-inline: 1.4rem;
}

.pcx-header__cta-icon {
  display: inline-flex;
}

/* Hotline */
.pcx-header__hotline {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(248, 250, 252, 0.16);
  background: radial-gradient(circle at 0 0, rgba(255, 69, 58, 0.26), transparent 55%), rgba(15, 23, 42, 0.88);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9);
  font-size: var(--font-size-xs);
  white-space: nowrap;
}

.pcx-header__hotline-icon {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(248, 250, 252, 0.06);
  color: var(--color-accent);
}

.pcx-header__hotline-label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  display: block;
}

.pcx-header__hotline-number {
  font-weight: 600;
  color: var(--color-text);
}

/* Mobile toggle */
.pcx-header__toggle {
  display: none;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.5);
  padding: 0.4rem 0.55rem;
  background: rgba(15, 23, 42, 0.9);
  color: var(--color-text);
}

.pcx-header__toggle-box {
  width: 22px;
  height: 18px;
  position: relative;
  display: inline-block;
}

.pcx-header__toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.pcx-header__toggle-line--top {
  top: 0;
}

.pcx-header__toggle-line--middle {
  top: 50%;
  transform: translateY(-50%);
}

.pcx-header__toggle-line--bottom {
  bottom: 0;
}

/* State when nav is open (applied via JS as .pcx-header--nav-open on header) */
.pcx-header--nav-open .pcx-header__toggle-line--top {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.pcx-header--nav-open .pcx-header__toggle-line--middle {
  opacity: 0;
}

.pcx-header--nav-open .pcx-header__toggle-line--bottom {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* Responsive */
@media (max-width: 960px) {
  .pcx-header__inner {
    gap: var(--space-2);
  }

  .pcx-header__hotline {
    display: none;
  }
}

@media (max-width: 768px) {
  .pcx-header__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .pcx-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at 0 0, rgba(255, 200, 0, 0.08), transparent 55%), var(--color-surface);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 0 var(--space-4) var(--space-4);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
  }

  .pcx-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding-top: var(--space-4);
  }

  .pcx-header__nav-link {
    font-size: var(--font-size-base);
  }

  .pcx-header__cta {
    width: 100%;
  }

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

  .pcx-header--nav-open .pcx-header__nav {
    display: flex;
  }
}

@media (min-width: 769px) {
  .pcx-header__nav {
    display: flex !important;
  }
}