/* Header styles for Gamer Tips Pro */

.gtp-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 9, 20, 0.96), rgba(5, 9, 20, 0.88));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.gtp-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  padding-bottom: 12px;
  gap: 16px;
}

.gtp-header__brand {
  display: flex;
  align-items: center;
}

.gtp-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gray-50);
}

.gtp-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 0, #4f46e5, #22c55e 60%, #020617 100%);
  box-shadow: 0 0 0 2px rgba(129, 140, 248, 0.5), var(--shadow-soft);
  color: #f9fafb;
  font-size: 18px;
}

.gtp-header__logo-text {
  display: flex;
  flex-direction: column;
}

.gtp-header__logo-title {
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 700;
}

.gtp-header__logo-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Navigation */

.gtp-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.gtp-header__nav-list {
  display: flex;
  align-items: center;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gtp-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: 6px 4px;
}

.gtp-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), #22c55e);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--duration-normal) var(--easing-standard);
}

.gtp-header__nav-link:hover,
.gtp-header__nav-link:focus-visible {
  color: var(--gray-50);
}

.gtp-header__nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

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

.gtp-header__cta-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}

.gtp-header__cta {
  font-size: var(--font-size-xs);
  padding-inline: 14px;
  padding-block: 8px;
}

/* Mobile menu toggle */

.gtp-header__menu-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.85);
  color: var(--gray-50);
}

.gtp-header__menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.gtp-header__menu-toggle-icon {
  position: relative;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-100);
}

.gtp-header__menu-toggle-icon::before,
.gtp-header__menu-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-100);
  transition: transform var(--duration-normal) var(--easing-standard),
    top var(--duration-normal) var(--easing-standard),
    opacity var(--duration-normal) var(--easing-standard);
}

.gtp-header__menu-toggle-icon::before {
  top: -6px;
}

.gtp-header__menu-toggle-icon::after {
  top: 6px;
}

.gtp-header__menu-toggle[aria-expanded="true"] .gtp-header__menu-toggle-icon {
  background: transparent;
}

.gtp-header__menu-toggle[aria-expanded="true"] .gtp-header__menu-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.gtp-header__menu-toggle[aria-expanded="true"] .gtp-header__menu-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.gtp-header__menu-toggle-label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Responsive behavior */

@media (max-width: 900px) {
  .gtp-header__inner {
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .gtp-header__menu-toggle {
    display: inline-flex;
  }

  .gtp-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 56px;
    max-height: calc(100vh - 56px);
    background: radial-gradient(circle at top, #0b1120 0, #020617 75%);
    border-top: 1px solid rgba(148, 163, 184, 0.4);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    padding: 16px 16px 20px;
    gap: 16px;
    box-shadow: var(--shadow-elevated);
    transition: opacity var(--duration-normal) var(--easing-standard),
      transform var(--duration-normal) var(--easing-standard),
      visibility var(--duration-normal) var(--easing-standard);
  }

  .gtp-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .gtp-header__nav-link {
    font-size: var(--font-size-md);
    padding-block: 6px;
  }

  .gtp-header__cta-group {
    width: 100%;
    justify-content: flex-start;
    margin-left: 0;
    margin-top: 6px;
  }

  .gtp-header__cta {
    flex: 1 1 auto;
    justify-content: center;
  }

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

@media (max-width: 520px) {
  .gtp-header__logo-subtitle {
    display: none;
  }
}