/* ═══════════════════════════════════════════════════════════
   FRONTIER ETHICS — Layout: Header · Navigation · Footer
   Critical Classicism — HP-aligned dark aesthetic
   ═══════════════════════════════════════════════════════════ */

/* ── Page Structure ── */
.pkp_structure_page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--fe-void);
  position: relative;
}

/* Ambient glow on page background */
.pkp_structure_page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 800px 500px at 15% 20%, rgba(122,45,58,0.025) 0%, transparent 70%),
    radial-gradient(ellipse 600px 400px at 80% 70%, rgba(200,169,110,0.015) 0%, transparent 70%);
  z-index: 0;
}

/* Film grain */
.pkp_structure_page::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.015;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.pkp_structure_content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-12) clamp(1.25rem, 4vw, 3rem) var(--space-16);
  position: relative;
  z-index: 1;
}

/* ── Header ── */
.pkp_structure_head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12,11,15,0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--fe-rule-md);
  transition: all 320ms cubic-bezier(0.16,1,0.3,1);
}

/* Subtle light beam on header */
.pkp_structure_head::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 50% 120% at 50% -20%, rgba(221,217,209,0.02) 0%, transparent 70%);
}

.pkp_head_wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(1rem, 3vw, 2rem);
  position: relative;
}

.pkp_site_name_wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Journal name — display font, uppercase */
.pkp_site_name {
  flex-shrink: 0;
}

.pkp_site_name a,
.pkp_site_name a.is_text {
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 2vw, 1.25rem);
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fe-primary);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
}

.pkp_site_name a img,
.pkp_site_name img {
  display: none;
}

/* Screen reader heading */
.pkp_screen_reader {
  position: absolute !important;
  overflow: hidden;
  clip: rect(0 0 0 0);
  height: 1px;
  width: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
}

/* Skip links */
.cmp_skip_to_content a {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-2) var(--space-4);
  background: var(--fe-surface);
  color: var(--fe-primary);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  border: 1px solid var(--fe-rule-md);
  text-decoration: none;
}
.cmp_skip_to_content a:focus { top: var(--space-2); }

/* ── Navigation ── */
.pkp_site_nav_menu {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.pkp_navigation_primary_row {
  display: flex;
  align-items: center;
}

.pkp_navigation_primary_wrapper {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.pkp_navigation_primary_wrapper a,
.pkp_nav_list a,
.pkp_navigation_primary a,
.pkp_navigation_primary li a {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fe-secondary);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.pkp_navigation_primary_wrapper a:hover,
.pkp_nav_list a:hover,
.pkp_navigation_primary a:hover,
.pkp_navigation_primary .current a {
  color: var(--fe-primary);
  border-bottom-color: var(--fe-burgundy);
}

/* User navigation */
.pkp_navigation_user_wrapper {
  display: flex;
  align-items: center;
}

.pkp_navigation_user {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.pkp_navigation_user li { display: inline-flex; }

.pkp_navigation_user a {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fe-tertiary);
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease-out);
}

.pkp_navigation_user a:hover {
  color: var(--fe-primary);
  border-color: rgba(122,45,58,0.3);
  background: rgba(122,45,58,0.08);
}

/* Search */
.pkp_search,
.pkp_search_desktop {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--fe-tertiary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
.pkp_search:hover { color: var(--fe-primary); }

/* Font Awesome icons in nav */
.fa { margin-right: 0.3em; }

/* Mobile toggle */
.pkp_site_nav_toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--fe-primary);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: var(--space-2);
}

/* ── Breadcrumbs ── */
.pkp_breadcrumbs {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--fe-tertiary);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--fe-rule);
}

.pkp_breadcrumbs a {
  color: var(--fe-tertiary);
  text-decoration: none;
}
.pkp_breadcrumbs a:hover { color: var(--fe-burgundy-lt); }

/* ── Page Title ── */
.app__pageHeading,
.page_header h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fe-primary);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--fe-rule-md);
}

/* ── Sidebar ── */
.pkp_structure_sidebar {
  margin-top: var(--space-8);
}

.pkp_block {
  margin-bottom: var(--space-8);
  padding: var(--space-6);
  border: 1px solid var(--fe-rule);
  background: var(--fe-surface);
  transition: border-color var(--duration-fast) var(--ease-out);
}
.pkp_block:hover { border-color: var(--fe-rule-md); }

.pkp_block .title {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fe-burgundy-lt);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--fe-rule);
}

.pkp_block ul { list-style: none; padding: 0; margin: 0; }
.pkp_block li { margin-bottom: var(--space-2); }

.pkp_block a {
  color: var(--fe-secondary);
  font-size: var(--text-sm);
  transition: color var(--duration-fast) var(--ease-out);
}
.pkp_block a:hover { color: var(--fe-primary); }

/* Two-column layout */
.has_sidebar {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--space-10);
}

/* ── Footer ── */
.pkp_structure_footer_wrapper {
  margin-top: auto;
  border-top: 1px solid var(--fe-rule-md);
  padding: var(--space-12) 0 var(--space-8);
  background: var(--fe-void);
  position: relative;
  z-index: 1;
}

.pkp_structure_footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  text-align: center;
}

.pkp_brand_footer {
  opacity: 0.25;
  transition: opacity var(--duration-fast) var(--ease-out);
}
.pkp_brand_footer:hover { opacity: 0.5; }

.pkp_brand_footer img {
  height: 24px;
  filter: grayscale(1) brightness(0.4);
  transition: filter var(--duration-fast) var(--ease-out);
}
.pkp_brand_footer:hover img {
  filter: grayscale(1) brightness(0.7);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .pkp_head_wrapper {
    height: 60px;
    padding: 0 var(--space-4);
  }

  .pkp_site_name a,
  .pkp_site_name a.is_text {
    font-size: 0.85rem;
    letter-spacing: 0.14em;
  }

  .pkp_site_nav_toggle { display: block; }

  .pkp_site_nav_menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(12,11,15,0.98);
    border-top: 1px solid var(--fe-rule-md);
    padding: var(--space-4) 0;
    z-index: 100;
  }
  .pkp_site_nav_menu.is_open { display: flex; }

  .pkp_navigation_primary_wrapper {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }

  .pkp_navigation_primary_wrapper a {
    display: block;
    padding: var(--space-3) var(--space-6);
    border-bottom: none;
    border-left: 2px solid transparent;
    width: 100%;
  }

  .pkp_navigation_primary .current a {
    border-left-color: var(--fe-burgundy);
    border-bottom-color: transparent;
  }

  .has_sidebar { grid-template-columns: 1fr; }

  .pkp_structure_content {
    padding: var(--space-8) var(--space-4) var(--space-12);
  }
}