/* Header styles scoped to .ep-header */

.ep-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 8, 19, 0.96), rgba(5, 8, 19, 0.9));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.ep-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

/* Brand */

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

.ep-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.ep-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 40% 60% 45% 55%;
  background: radial-gradient(circle at 20% 0, var(--color-primary-strong), var(--color-primary));
  box-shadow: var(--shadow-soft);
  position: relative;
}

.ep-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 24%;
  border-radius: inherit;
  border: 1px solid rgba(5, 8, 19, 0.7);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.ep-header__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.ep-header__brand-name {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.ep-header__brand-tagline {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
}

/* Navigation */

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

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

.ep-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding-block: 0.25rem;
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.ep-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary-strong), var(--color-accent));
  transition: width var(--transition-normal);
}

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

.ep-header__nav-link:hover::after,
.ep-header__nav-link:focus-visible::after {
  width: 100%;
}

/* CTA link styled like a button */

.ep-header__nav-item--cta {
  margin-left: var(--space-2);
}

.ep-header__nav-link--cta {
  padding-inline: 1rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  color: #120b02;
  box-shadow: var(--shadow-soft);
}

.ep-header__nav-link--cta::after {
  display: none;
}

.ep-header__nav-link--cta:hover,
.ep-header__nav-link--cta:focus-visible {
  color: #120b02;
  box-shadow: var(--shadow-strong);
}

/* Mobile toggle */

.ep-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(244, 204, 95, 0.4);
  background: rgba(5, 8, 19, 0.9);
  align-items: center;
  justify-content: center;
  gap: 4px;
}

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

.ep-header--menu-open .ep-header__toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.ep-header--menu-open .ep-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.ep-header--menu-open .ep-header__toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Overlay for mobile nav */

.ep-header__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  z-index: 35;
}

.ep-header--menu-open .ep-header__overlay {
  opacity: 1;
  visibility: visible;
}

/* Responsive layout */

@media (max-width: 960px) {
  .ep-header__toggle {
    display: inline-flex;
    flex-direction: column;
    z-index: 1111;
  }

  .ep-header__nav {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    height: auto;

    background: radial-gradient(
      circle at top,
      rgba(208, 169, 79, 0.2),
      var(--color-bg-elevated)
    );

    padding: var(--space-6) var(--space-4);
    box-shadow: var(--shadow-strong);

    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;

    transition:
      transform var(--transition-normal),
      opacity var(--transition-normal),
      visibility var(--transition-normal);

    z-index: 45;
  }

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

  .ep-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .ep-header__nav-item--cta {
    margin-left: 0;
    margin-top: var(--space-2);
  }

  .ep-header__nav-link--cta {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .ep-header__brand-name {
    font-size: 0.95rem;
  }

  .ep-header__brand-tagline {
    display: none;
  }
}