/* Header component for Plonexia */

.px-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: radial-gradient(circle at top left, rgba(88, 101, 242, 0.25), transparent 55%),
              radial-gradient(circle at bottom right, rgba(0, 255, 163, 0.18), transparent 55%),
              rgba(4, 6, 20, 0.96);
  border-bottom: 1px solid rgba(120, 120, 255, 0.35);
}

.px-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.px-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.px-header__logo-mark {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 0.8rem;
  background: conic-gradient(from 210deg, #00ffa3, #5865f2, #00e1ff, #ff007a, #00ffa3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Orbitron", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: #050814;
  box-shadow: 0 0 18px rgba(88, 101, 242, 0.65);
}

.px-header__logo-text {
  font-family: "Orbitron", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: #f9fafb;
}

/* Navigation */

.px-header__nav {
  display: flex;
  align-items: center;
}

.px-header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.px-header__nav-link {
  position: relative;
  text-decoration: none;
  font-family: "Rajdhani", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #e5e7eb;
  padding-block: 0.35rem;
}

.px-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  background: linear-gradient(90deg, #00ffa3, #5865f2);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.18s ease-out;
}

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

.px-header__nav-link:hover,
.px-header__nav-link:focus-visible {
  color: #ffffff;
}

.px-header__nav-link:focus-visible {
  outline: 2px solid #00ffa3;
  outline-offset: 3px;
  border-radius: 4px;
}

/* Mobile toggle */

.px-header__toggle {
  display: none;
  position: relative;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.65);
  background: radial-gradient(circle at 20% 0, rgba(148, 163, 255, 0.45), transparent 55%),
              rgba(15, 23, 42, 0.96);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}

.px-header__toggle:focus-visible {
  outline: 2px solid #00ffa3;
  outline-offset: 3px;
}

.px-header__toggle-bar {
  position: absolute;
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background-color: #e5e7eb;
  transition: transform 0.18s ease-out, opacity 0.18s ease-out, top 0.18s ease-out, bottom 0.18s ease-out;
}

.px-header__toggle-bar:nth-child(1) {
  top: 0.78rem;
}

.px-header__toggle-bar:nth-child(2) {
  top: 1.15rem;
}

.px-header__toggle-bar:nth-child(3) {
  bottom: 0.78rem;
}

.px-header__toggle[aria-expanded="true"] .px-header__toggle-bar:nth-child(1) {
  top: 1.15rem;
  transform: rotate(45deg);
}

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

.px-header__toggle[aria-expanded="true"] .px-header__toggle-bar:nth-child(3) {
  bottom: 1.15rem;
  transform: rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 768px) {
  .px-header__inner {
    padding-block: 0.6rem;
  }

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

  .px-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 3.4rem;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), rgba(3, 7, 18, 0.98));
    border-top: 1px solid rgba(148, 163, 184, 0.35);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.2s ease-out, opacity 0.2s ease-out, visibility 0.2s ease-out;
  }

  .px-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.6rem 1.25rem 1rem;
    gap: 0.35rem;
  }

  .px-header__nav-link {
    width: 100%;
    padding: 0.6rem 0.1rem;
    font-size: 0.95rem;
  }

  .px-header__nav-link::after {
    display: none;
  }

  .px-header__nav--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

@media (prefers-reduced-motion: reduce) {
  .px-header,
  .px-header__nav,
  .px-header__toggle-bar {
    scroll-behavior: auto;
    transition: none !important;
  }
}