:root {
  --bg-canvas: #211c18;
  --bg-surface: #302820;
  --bg-surface-hover: #3c3228;
  --text-primary: #f4f1ea;
  --text-muted: #c2b8a8;
  --accent-primary: #d4a84b;
  --accent-secondary: #a67e32;
  --border-subtle: rgba(212, 168, 75, 0.28);
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --font-heading: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-wrap: anywhere;
  hyphens: auto;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  position: relative;
  transition: color 0.25s var(--ease-kinetic);
}

.text-link {
  display: inline-block;
  font-weight: 600;
  color: var(--accent-primary);
  padding-bottom: 2px;
}

.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 1px;
  background-color: var(--accent-primary);
  transition: width 0.3s var(--ease-kinetic);
}

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  line-height: 1.25;
  color: var(--text-primary);
  font-weight: 700;
}

h1 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  margin-bottom: 0.5rem;
}

h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
  margin-bottom: 1rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border-subtle);
}

h3 {
  font-size: 1.15rem;
  margin-bottom: 0.65rem;
  color: var(--accent-primary);
}

p {
  margin-bottom: 1.1rem;
  max-width: 70ch;
}

ul, ol {
  margin-bottom: 1.2rem;
  padding-left: 1.4rem;
}

li {
  margin-bottom: 0.5rem;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 0;
  object-fit: cover;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

/* Header & Tagline Bar (Static - Scrolls Away) */
.tagline-bar {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.4rem 1.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-header {
  position: relative;
  background-color: var(--bg-canvas);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 1.5rem;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-align: left;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1.35rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
}

.brand-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  color: var(--bg-canvas);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.primary-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.65rem;
  margin: 0;
  padding: 0;
}

.primary-nav li {
  margin: 0;
}

.primary-nav a {
  color: var(--text-primary);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.9rem;
  padding: 0.25rem 0;
  position: relative;
}

.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background-color: var(--accent-primary);
  transition: width 0.25s var(--ease-kinetic);
}

.primary-nav a:hover::after,
.primary-nav a[aria-current="page"]::after {
  width: 100%;
}

.primary-nav a[aria-current="page"] {
  color: var(--accent-primary);
}

.nav-toggle {
  display: none;
  background: var(--bg-surface);
  color: var(--accent-primary);
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.75rem;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

/* Main Container & Shallow Hero Band */
.main-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.hero-band {
  padding: 1.75rem 0 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.25rem;
}

.hero-band-copy p {
  color: var(--text-muted);
  margin-bottom: 0;
  font-size: 1.05rem;
}

.btn-primary {
  display: inline-block;
  background-color: var(--accent-primary);
  color: var(--bg-canvas);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.8rem 1.5rem;
  border: 1px solid var(--accent-primary);
  cursor: pointer;
  transition: background-color 0.25s var(--ease-kinetic), transform 0.25s var(--ease-kinetic);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--accent-secondary);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* Layout Architecture: Lead Block + Two-Column Editorial Grid */
.lead-planning-block {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 2rem;
  margin-bottom: 2.5rem;
}

.schematic-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 2rem;
  align-items: start;
  margin-top: 1.25rem;
}

.schematic-visual {
  position: relative;
}

.schematic-caption {
  margin-top: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-left: 2px solid var(--accent-primary);
  padding-left: 0.75rem;
}

.two-col-editorial {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.editorial-block {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem;
}

/* Icon-Led List Rows Separated by Thin Gold-Tinted Rules */
.spec-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  border-top: 1px solid var(--border-subtle);
}

.spec-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.spec-badge {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--bg-canvas);
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.spec-content {
  flex: 1;
}

.spec-title {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.25rem;
}

.spec-desc {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 0;
}

/* Tables */
.table-scroll {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border-subtle);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-surface);
  font-size: 0.92rem;
}

th, td {
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
  background-color: var(--bg-canvas);
}

/* FAQ Accordion */
.faq-accordion {
  border-top: 1px solid var(--border-subtle);
  margin: 1.25rem 0;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-item summary {
  padding: 1rem 0;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  color: var(--accent-primary);
  font-size: 1.25rem;
  font-weight: 700;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 0 1.15rem;
  color: var(--text-muted);
}

/* Contributor Strip */
.contributor-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin: 1.5rem 0;
}

.avatar-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  color: var(--bg-canvas);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

/* Utility Panels & Forms */
.utility-panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem;
  margin: 1.5rem 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

label {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  color: var(--accent-primary);
}

input, select, textarea {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.7rem 0.85rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: 0;
}

input:focus, select:focus, textarea:focus {
  outline: 1px solid var(--accent-primary);
}

.utility-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1rem;
}

.status-msg {
  font-size: 0.9rem;
  color: var(--accent-primary);
  margin-top: 0.75rem;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease-kinetic), transform 0.6s var(--ease-kinetic);
}

.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 2.5rem 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.84rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .schematic-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .tagline-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }
  .nav-toggle {
    display: inline-block;
  }
  .primary-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1rem 1.5rem;
    z-index: 50;
  }
  .primary-nav.nav-open {
    display: block;
  }
  .primary-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }
  .two-col-editorial,
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .lead-planning-block,
  .editorial-block,
  .utility-panel {
    padding: 1.25rem;
  }
  .hero-band {
    padding: 1.25rem 0;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}