:root {
  --global-header-bg: rgba(255, 255, 255, 0.95);
  --global-header-border: rgba(15, 23, 42, 0.08);
  --global-header-text: #111827;
  --global-header-muted: #6b7280;
  --global-header-pill: rgba(37, 99, 235, 0.07);
  --global-header-pill-hover: rgba(37, 99, 235, 0.15);
  --global-header-accent: #2563eb;
  --global-header-cta-text: #fff;
}

[data-theme='dark'],
body.dark {
  --global-header-bg: rgba(15, 23, 42, 0.92);
  --global-header-border: rgba(148, 163, 184, 0.2);
  --global-header-text: #f3f4f6;
  --global-header-muted: #94a3b8;
  --global-header-pill: rgba(59, 130, 246, 0.15);
  --global-header-pill-hover: rgba(59, 130, 246, 0.25);
  --global-header-accent: #60a5fa;
  --global-header-cta-text: #0f172a;
}

body.light {
  --global-header-bg: rgba(255, 255, 255, 0.97);
  --global-header-border: rgba(15, 23, 42, 0.08);
  --global-header-text: #111827;
  --global-header-muted: #6b7280;
  --global-header-pill: rgba(37, 99, 235, 0.07);
  --global-header-pill-hover: rgba(37, 99, 235, 0.15);
  --global-header-accent: #2563eb;
  --global-header-cta-text: #fff;
}

.global-header {
  position: sticky;
  top: 0;
  width: 100%;
  background: var(--global-header-bg);
  border-bottom: 1px solid var(--global-header-border);
  backdrop-filter: blur(12px);
  z-index: 50;
}

.global-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: space-between;
}

.global-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.global-brand__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.global-brand__text {
  display: flex;
  flex-direction: column;
  color: var(--global-header-text);
  font-weight: 600;
  line-height: 1.2;
}

.global-brand__text small {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--global-header-muted);
}

.global-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.global-nav__link {
  text-decoration: none;
  color: var(--global-header-text);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: transparent;
  transition: all 0.2s ease;
}

.global-nav__link:hover,
.global-nav__link:focus-visible,
.global-nav__link.active {
  background: var(--global-header-pill);
  color: var(--global-header-accent);
}

.global-nav__cta {
  text-decoration: none;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: var(--global-header-cta-text);
  font-weight: 600;
  padding: 0.45rem 1.4rem;
  border-radius: 999px;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.global-nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 15px 30px rgba(37, 99, 235, 0.3);
}

.global-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.global-dark-toggle {
  border: 1px solid var(--global-header-border);
  background: transparent;
  color: var(--global-header-text);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.global-dark-toggle:hover {
  border-color: var(--global-header-accent);
  color: var(--global-header-accent);
}

.global-subnav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.global-subnav button,
.global-subnav a {
  border: 1px solid var(--global-header-border);
  background: var(--global-header-pill);
  color: var(--global-header-text);
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

.global-subnav button:hover,
.global-subnav a:hover,
.global-subnav button.active,
.global-subnav a.active {
  background: var(--global-header-pill-hover);
  color: var(--global-header-accent);
}

@media (max-width: 960px) {
  .global-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .global-header__actions {
    width: 100%;
    justify-content: flex-start;
  }

  .global-nav {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .global-brand__text span {
    font-size: 1rem;
  }

  .global-nav__cta {
    width: 100%;
    text-align: center;
  }

  .global-header__actions {
    flex-direction: column;
    align-items: stretch;
  }
}
