.pe-ribbon {
  position: relative;
  z-index: 50;
  background: var(--color-ribbon-bg);
  color: var(--color-ribbon-text);
  text-align: center;
  padding: var(--space-2);
}

.pe-header {
  position: sticky;
  top: 0;
  background: var(--color-surface-primary);
  border-bottom: 1px solid var(--color-border-default);
  z-index: 100;
}

.pe-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 72px;
}

.pe-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
}

.pe-logo {
  height: 48px;
  width: auto;
}

.pe-brand-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
}

.pe-nav {
  display: block;
}

.pe-nav-close {
  display: none;
}

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

.pe-nav-link {
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: var(--fs-6);
}

.pe-nav-link:hover,
.pe-nav-link:focus-visible {
  color: var(--color-text-accent);
}

.pe-nav-contact {
  margin-left: var(--space-3);
}

.pe-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
}

.pe-nav-toggle-lines,
.pe-nav-toggle-lines::before,
.pe-nav-toggle-lines::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-primary);
  position: relative;
}

.pe-nav-toggle-lines::before,
.pe-nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
}

.pe-nav-toggle-lines::before {
  top: -6px;
}

.pe-nav-toggle-lines::after {
  top: 6px;
}

.pe-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.2);
  z-index: 90;
}

@media (max-width: 900px) {
  .pe-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 280px;
    background: var(--color-surface-primary);
    border-left: 1px solid var(--color-border-default);
    padding: var(--space-4);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    z-index: 100;
    display: flex;
    flex-direction: column;
  }

  .pe-nav[data-open="true"] {
    transform: translateX(0);
  }

  .pe-nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-sm);
    background: none;
    cursor: pointer;
    align-self: flex-end;
    margin-bottom: var(--space-3);
  }

  .pe-nav-close-icon {
    position: relative;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .pe-nav-close-icon::before,
  .pe-nav-close-icon::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--color-text-primary);
  }

  .pe-nav-close-icon::before {
    transform: rotate(45deg);
  }

  .pe-nav-close-icon::after {
    transform: rotate(-45deg);
  }

  .pe-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    width: 100%;
  }

  .pe-nav-contact {
    margin-left: 0;
    width: 100%;
  }

  .pe-nav-toggle {
    display: flex;
  }
}