/* Header styles – build on base.css */

.cm-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: linear-gradient(90deg, rgba(15,23,42,0.96), rgba(15,23,42,0.94));
  border-bottom: 1px solid rgba(148,163,184,0.28);
}

.cm-skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.5rem;
  transform: translateY(-150%);
  padding: 0.5rem 0.9rem;
  background: #0f172a;
  color: #e5e7eb;
  border-radius: 0.375rem;
  border: 1px solid #38bdf8;
  font-size: 0.875rem;
  z-index: 60;
}

.cm-skip-link:focus-visible {
  transform: translateY(0);
  outline: none;
}

.cm-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cm-header-brand {
  display: flex;
  align-items: center;
}

.cm-header-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.cm-header-logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 0.9rem;
  background: radial-gradient(circle at 30% 20%, #38bdf8, #0ea5e9 40%, #1d4ed8 80%);
  box-shadow: 0 0 0 1px rgba(15,23,42,0.9), 0 10px 25px rgba(56,189,248,0.4);
}

.cm-header-logo-text {
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #f9fafb;
  white-space: nowrap;
}

.cm-header-toggle {
  display: none;
  border: 1px solid rgba(148,163,184,0.6);
  background: rgba(15,23,42,0.9);
  color: #e5e7eb;
  border-radius: 0.5rem;
  padding: 0.45rem 0.55rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.18rem;
}

.cm-header-toggle-bar {
  width: 1.2rem;
  height: 2px;
  border-radius: 999px;
  background: #e5e7eb;
}

.cm-header-toggle:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 2px;
}

.cm-header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  margin-left: 2rem;
}

.cm-header-nav-list {
  display: flex;
  gap: 1.2rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.cm-header-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: #e5e7eb;
  text-decoration: none;
  padding: 0.35rem 0;
}

.cm-header-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #38bdf8, #22c55e);
  transition: width 0.18s ease-out;
}

.cm-header-nav-link:hover::after,
.cm-header-nav-link:focus-visible::after {
  width: 100%;
}

.cm-header-nav-link:focus-visible {
  outline: none;
  color: #f9fafb;
}

.cm-header-nav-link--highlight {
  color: #e0f2fe;
}

.cm-header-nav-link--highlight::after {
  background: linear-gradient(90deg, #f97316, #facc15);
}

.cm-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.cm-header-icon-link {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(148,163,184,0.6);
  color: #e5e7eb;
  background: rgba(15,23,42,0.9);
  text-decoration: none;
}

.cm-header-icon-link:hover {
  border-color: #38bdf8;
  color: #f9fafb;
}

.cm-header-icon-link:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 2px;
}

.cm-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: none;
  text-decoration: none;
  color: #020617;
  background: linear-gradient(135deg, #38bdf8, #22c55e);
  box-shadow: 0 12px 30px rgba(34,197,94,0.25);
  white-space: nowrap;
}

.cm-header-cta:hover {
  filter: brightness(1.05);
}

.cm-header-cta:focus-visible {
  outline: 2px solid #facc15;
  outline-offset: 2px;
}

/* Mobile layout */

@media (max-width: 768px) {
  .cm-header-inner {
    padding-inline: 0.9rem;
  }

  .cm-header-toggle {
    display: inline-flex;
  }

  .cm-header-nav {
    position: absolute;
    inset-inline: 0.75rem;
    top: calc(100% + 0.45rem);
    border-radius: 0.9rem;
    background: radial-gradient(circle at top, rgba(15,23,42,0.98), rgba(15,23,42,0.96));
    border: 1px solid rgba(148,163,184,0.4);
    box-shadow: 0 18px 45px rgba(15,23,42,0.9);
    padding: 0.6rem 0.85rem 0.8rem;
    flex-direction: column;
    gap: 0.75rem;
    transform-origin: top center;
    transform: scaleY(0.9);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.18s ease-out, transform 0.18s ease-out, visibility 0.18s ease-out;
  }

  .cm-header-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: scaleY(1);
  }

  .cm-header-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  .cm-header-nav-link {
    width: 100%;
    padding-block: 0.35rem;
  }

  .cm-header-actions {
    width: 100%;
    justify-content: flex-end;
    margin-left: 0;
  }

  .cm-header-cta {
    flex: 1;
    justify-content: center;
  }
}

/* Small screens tweaks */

@media (max-width: 480px) {
  .cm-header-logo-text {
    font-size: 1rem;
  }

  .cm-header-actions {
    gap: 0.5rem;
  }

  .cm-header-cta span {
    font-size: 0.85rem;
  }
}