:root {
  --bg-canvas: #f3e9d8;
  --bg-surface: #fffaf0;
  --bg-surface-hover: #efe3cf;
  --text-primary: #262626;
  --text-muted: #5c5346;
  --accent-primary: #a63f24;
  --accent-secondary: #7a2b16;
  --border-subtle: #d6c8b2;
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 10px 28px -6px rgba(38, 38, 38, 0.14);
}
*, *::before, *::after { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  overflow-wrap: anywhere;
  hyphens: auto;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 0;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
}
a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
a:hover, a:focus-visible {
  color: var(--accent-secondary);
}
.mono-label, .bar-num, h2.small-head, h3.small-head, th, .tag-chip {
  font-family: ui-monospace, Consolas, "Liberation Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
}
.mono-label {
  color: var(--accent-primary);
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 700;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.prose {
  max-width: 70ch;
}
.prose-center {
  max-width: 70ch;
  margin: 0 auto;
}
/* Inset Capsule Header (sole rounded element) */
.site-header-wrap {
  padding: 1.25rem 1.25rem 0.5rem;
  position: relative;
}
.site-header {
  max-width: 1200px;
  margin: 0 auto;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  padding: 0.65rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: var(--shadow-elevation);
  position: relative;
}
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1rem;
  margin-right: auto;
}
.brand-mark {
  width: 24px;
  height: 24px;
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 700;
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}
.desktop-nav a {
  text-decoration: none;
  color: var(--text-primary);
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 1.25rem;
  line-height: 1;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  border-radius: 0;
}
.mobile-nav-panel {
  display: none;
  max-width: 1200px;
  margin: 0.5rem auto 0;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 1rem 1.5rem;
}
.mobile-nav-panel.is-open {
  display: block;
}
.mobile-nav-panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.mobile-nav-panel a {
  text-decoration: none;
  color: var(--text-primary);
  font-family: ui-monospace, Consolas, monospace;
  text-transform: uppercase;
  font-size: 0.9rem;
}
/* Typography */
h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}
h2 {
  font-size: clamp(1.45rem, 2.6vw, 2.1rem);
  line-height: 1.25;
  margin: 0 0 0.85rem;
}
h3 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}
p {
  margin: 0 0 1.1rem;
}
/* Buttons: Outlined square with uppercase labels */
.btn-outline {
  display: inline-block;
  border: 2px solid var(--accent-primary);
  background-color: transparent;
  color: var(--accent-primary);
  font-family: ui-monospace, Consolas, monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.75rem 1.35rem;
  text-decoration: none;
  border-radius: 0;
  cursor: pointer;
  transition: background-color 0.2s var(--ease-kinetic), color 0.2s var(--ease-kinetic), transform 0.2s var(--ease-kinetic);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  transform: translateY(-2px);
}
.btn-outline-dark {
  border-color: var(--text-primary);
  color: var(--text-primary);
}
.btn-outline-dark:hover, .btn-outline-dark:focus-visible {
  background-color: var(--text-primary);
  color: var(--bg-surface);
}
/* Flat section bands */
.band-sand {
  background-color: var(--bg-canvas);
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.band-warmwhite {
  background-color: var(--bg-surface);
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.band-terracotta {
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.band-terracotta a, .band-terracotta .mono-label {
  color: var(--bg-surface);
}
.band-terracotta .btn-outline {
  border-color: var(--bg-surface);
  color: var(--bg-surface);
}
.band-terracotta .btn-outline:hover {
  background-color: var(--bg-surface);
  color: var(--accent-primary);
}
/* Alternating Split Layout */
.split-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.split-stage.reverse .stage-Copy {
  order: 2;
}
.split-stage.reverse .stage-Visual {
  order: 1;
}
/* Overlapping 3D Hero Stack */
.hero-overlap-stack {
  position: relative;
  min-height: 400px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: repeat(12, 32px);
}
.hero-obj-1 {
  grid-column: 1 / 9;
  grid-row: 1 / 8;
  z-index: 1;
  box-shadow: var(--shadow-elevation);
}
.hero-obj-2 {
  grid-column: 5 / 13;
  grid-row: 4 / 11;
  z-index: 2;
  box-shadow: var(--shadow-elevation);
  border: 2px solid var(--accent-primary);
}
.hero-obj-3 {
  grid-column: 2 / 8;
  grid-row: 7 / 13;
  z-index: 3;
  box-shadow: var(--shadow-elevation);
}
.hero-overlap-stack img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* Icon-led Resource Rows (Strictly NO Cards) */
.resource-list {
  border-top: 1px solid var(--border-subtle);
  margin-top: 1.75rem;
}
.resource-row {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 1.25rem;
  align-items: start;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.2s ease, padding-left 0.2s ease;
}
.resource-row:hover {
  background-color: var(--bg-surface-hover);
  padding-left: 0.5rem;
}
.row-icon {
  width: 38px;
  height: 38px;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, Consolas, monospace;
  font-weight: 700;
  font-size: 0.85rem;
  background-color: var(--bg-surface);
}
.row-meta {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}
/* Worked-Example Spreads, Annotated Sequences & Section Maps */
.worked-spread {
  border-top: 2px solid var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.5rem 0;
  margin: 1.5rem 0;
}
.chord-sequence-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  margin: 1.25rem 0;
}
.chord-cell {
  padding: 1rem;
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.chord-cell.changed-element {
  border-top: 4px solid var(--accent-primary);
}
.chord-symbol {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 1.35rem;
  font-weight: 700;
  display: block;
}
.section-map-bar {
  display: grid;
  grid-template-columns: 2fr 3fr 1fr 3fr 2fr;
  border: 1px solid var(--text-primary);
  margin: 1.5rem 0;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.78rem;
}
.section-map-segment {
  padding: 0.85rem 0.65rem;
  border-right: 1px solid var(--text-primary);
  background-color: var(--bg-surface);
}
.section-map-segment.active-seg {
  background-color: var(--accent-primary);
  color: var(--bg-surface);
}
.role-diagram {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 1.25rem 0;
}
.role-diagram th, .role-diagram td {
  border: 1px solid var(--border-subtle);
  padding: 0.75rem 0.85rem;
  text-align: left;
}
.role-diagram th {
  background-color: var(--bg-surface);
}
.terracotta-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  background-color: var(--accent-primary);
  margin-right: 6px;
}
/* Forms & Inputs (Square) */
.bench-form {
  display: grid;
  gap: 1.25rem;
  max-width: 640px;
}
.form-field label {
  display: block;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.82rem;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  font-weight: 700;
}
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--text-primary);
  border-radius: 0;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
}
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}
/* Reveal kinetic effect */
.reveal-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-kinetic), transform 0.6s var(--ease-kinetic);
}
.reveal-item.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Footer */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 2px solid var(--text-primary);
  padding: 3.5rem 0 2.5rem;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}
.footer-bottom {
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-muted);
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.8rem;
}
/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .split-stage { gap: 2rem; }
}
@media (max-width: 768px) {
  .desktop-nav { display: none; }
  .mobile-menu-btn { display: inline-block; }
  .split-stage { grid-template-columns: 1fr; }
  .split-stage.reverse .stage-Copy { order: 1; }
  .split-stage.reverse .stage-Visual { order: 2; }
  .section-map-bar { grid-template-columns: 1fr; }
  .resource-row { grid-template-columns: 38px 1fr; }
  .row-meta { grid-column: 2; }
}
@media (max-width: 480px) {
  .band-sand, .band-warmwhite, .band-terracotta { padding: 2.75rem 0; }
  .site-header { padding: 0.55rem 1rem; }
}

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