/* Header styles for Digital Market PL */

.dm-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.18), transparent 55%),
    rgba(6, 8, 22, 0.92);
  border-bottom: 1px solid rgba(148, 163, 255, 0.2);
}

.dm-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-6);
}

/* Brand */
.dm-header__brand {
  display: flex;
  align-items: center;
}

.dm-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text);
}

.dm-header__logo-mark {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 0%, #38bdf8 0, transparent 55%),
    radial-gradient(circle at 80% 100%, #4f46e5 0, transparent 55%),
    #020617;
  border: 1px solid rgba(148, 163, 255, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-subtle);
}

.dm-header__logo-orbit {
  position: relative;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 2px solid rgba(191, 219, 254, 0.85);
}

.dm-header__logo-orbit::after {
  content: "";
  position: absolute;
  top: 50%;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #2f7df6;
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.9);
  transform: translateY(-50%);
}

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

.dm-header__logo-title {
  font-weight: 600;
  font-size: var(--font-size-lg);
  letter-spacing: 0.02em;
}

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

/* Navigation */
.dm-header__nav {
  display: flex;
  align-items: center;
}

.dm-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  padding: 0;
  margin: 0;
}

.dm-header__nav-item--highlight .dm-header__nav-link {
  padding-inline: 0.9rem;
  padding-block: 0.45rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(59, 130, 246, 0.6);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 55%),
    rgba(15, 23, 42, 0.9);
}

.dm-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding-block: 0.25rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-normal),
    opacity var(--transition-fast);
}

.dm-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: center;
  background: linear-gradient(90deg, #38bdf8, #4f46e5);
  transition: transform var(--transition-normal);
}

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

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

/* Mobile toggle */
.dm-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  border-radius: var(--radius-pill);
  padding: 0.4rem 0.7rem;
  border: 1px solid rgba(148, 163, 255, 0.35);
  background: rgba(15, 23, 42, 0.8);
  cursor: pointer;
  transition: background-color var(--transition-normal),
    border-color var(--transition-normal),
    transform var(--transition-fast);
}

.dm-header__toggle:hover {
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(59, 130, 246, 0.8);
}

.dm-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.dm-header__toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.dm-header__toggle-line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-normal),
    opacity var(--transition-fast);
}

.dm-header__toggle-label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* Toggle active state */
.dm-header__toggle[aria-expanded="true"] .dm-header__toggle-line:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}

.dm-header__toggle[aria-expanded="true"] .dm-header__toggle-line:nth-child(2) {
  opacity: 0;
}

.dm-header__toggle[aria-expanded="true"] .dm-header__toggle-line:nth-child(3) {
  transform: translateY(-3px) rotate(-45deg);
}

/* Responsive behavior */
@media (max-width: 768px) {
  .dm-header__inner {
    padding-block: var(--space-3);
  }

  .dm-header__logo-subtitle {
    display: none;
  }

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

  .dm-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.25), transparent 55%),
      rgba(15, 23, 42, 0.98);
    border-bottom: 1px solid rgba(148, 163, 255, 0.2);
    transform-origin: top;
  }

  .dm-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--layout-gutter) var(--space-5);
    gap: var(--space-3);
  }

  .dm-header__nav-link {
    font-size: var(--font-size-md);
  }

  /* Progressive enhancement: nav is visible by default; JS will add class to control */
  .dm-header__nav.dm-header__nav--collapsible {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height var(--transition-slow), opacity var(--transition-normal);
  }

  .dm-header__nav.dm-header__nav--open {
    max-height: 320px;
    opacity: 1;
    pointer-events: auto;
  }
}

@media (min-width: 769px) {
  .dm-header__nav {
    position: static;
  }
}