:root {
  --bg-canvas: #ffffff;
  --bg-surface: #f3f2ef;
  --bg-surface-hover: #e7e5e0;
  --text-primary: #292524;
  --text-muted: #57534e;
  --accent-primary: #b93820;
  --accent-secondary: #8c2714;
  --border-subtle: #d6d3cd;
  --border-strong: #292524;
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 8px 24px -4px rgba(41, 37, 36, 0.12);
  --glow-accent: 0 0 0 1px var(--accent-primary);
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, Consolas, "Courier New", monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  border-radius: 0 !important;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-wrap: anywhere;
  hyphens: auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease-kinetic);
}

a:hover, a:focus-visible {
  color: var(--text-primary);
}

h1, h2, h3, h4 {
  margin-top: 0;
  line-height: 1.2;
  color: var(--text-primary);
  font-weight: 700;
}

h1 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.2rem;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.35rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.prose {
  max-width: 70ch;
}

/* Header & Navigation */
.site-header {
  position: relative;
  background: var(--bg-canvas);
  border-bottom: 2px solid var(--border-strong);
  padding: 0.85rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2.5rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.brand-mark {
  width: 18px;
  height: 18px;
  background: var(--accent-primary);
  display: inline-block;
  border: 2px solid var(--border-strong);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: nowrap;
}

.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--text-primary);
  padding: 0.35rem 0.5rem;
  border: 1px solid transparent;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  border-color: var(--accent-primary);
  background: var(--bg-surface);
  color: var(--accent-primary);
}

.menu-toggle {
  display: none;
  margin-left: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
}

/* Short Headline Hero Band */
.hero-band {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.75rem 0;
}

.hero-band-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.hero-band h1 {
  margin: 0;
}

.hero-sub {
  margin: 0.35rem 0 0;
  color: var(--text-muted);
  max-width: 65ch;
  font-size: 0.98rem;
}

/* Buttons */
.btn-outline {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 0.75rem 1.25rem;
  border: 2px solid var(--border-strong);
  background: var(--bg-canvas);
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-kinetic), box-shadow 0.2s var(--ease-kinetic), background-color 0.2s;
}

.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevation);
}

.btn-vermilion {
  background: var(--accent-primary);
  border-color: #ffffff;
  color: #ffffff;
}

.btn-vermilion:hover {
  background: var(--text-primary);
  border-color: #ffffff;
}

/* Vermilion Full-Width Bands */
.vermilion-band {
  background: var(--accent-primary);
  color: #ffffff;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
}

.vermilion-band h2,
.vermilion-band h3,
.vermilion-band p,
.vermilion-band .mono-label {
  color: #ffffff;
}

.vermilion-band-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Sections & Compact Panels */
.section-block {
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-block.alt-surface {
  background: var(--bg-surface);
}

.section-header {
  margin-bottom: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.85rem;
}

/* Factual Stat Strips */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  margin: 1.5rem 0;
}

.stat-cell {
  background: var(--bg-canvas);
  padding: 1rem 1.15rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-primary);
  display: block;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-top: 0.2rem;
}

.stat-source {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.35rem;
}

/* Grid & Cards with Overlapping Badge */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.index-card {
  background: var(--bg-canvas);
  border: 1px solid var(--border-strong);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s var(--ease-kinetic), box-shadow 0.25s var(--ease-kinetic);
}

.alt-surface .index-card {
  background: var(--bg-canvas);
}

.index-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevation), var(--glow-accent);
}

.card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-strong);
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.craft-badge {
  position: absolute;
  bottom: -0.75rem;
  left: 1rem;
  background: var(--accent-primary);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border-strong);
  z-index: 2;
}

.card-body {
  padding: 1.4rem 1.2rem 1.2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-body h3 {
  margin-bottom: 0.5rem;
}

.card-body p {
  margin: 0 0 1rem;
  font-size: 0.94rem;
  color: var(--text-muted);
  flex-grow: 1;
}

.card-specs {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.65rem;
  margin-top: auto;
  color: var(--text-primary);
}

/* Regional Tabs */
.tabs-container {
  border: 1px solid var(--border-strong);
  background: var(--bg-canvas);
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-strong);
  background: var(--bg-surface);
}

.tab-btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.85rem 1.25rem;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border-strong);
  color: var(--text-primary);
  cursor: pointer;
}

.tab-btn[aria-selected="true"] {
  background: var(--accent-primary);
  color: #ffffff;
  font-weight: 700;
}

.tab-panel {
  padding: 1.5rem;
  display: none;
}

.tab-panel.active {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  align-items: start;
}

/* Finish Comparison Interactive Switcher */
.finish-compare-box {
  border: 1px solid var(--border-strong);
  background: var(--bg-canvas);
  padding: 1.25rem;
}

.finish-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

/* Wheel Profile Strip */
.wheel-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.wheel-node {
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  padding: 1rem;
}

.wheel-node .spec-line {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.35rem 0;
  display: flex;
  justify-content: space-between;
}

/* Accessible Accordions */
.accordion-group {
  border: 1px solid var(--border-strong);
  background: var(--bg-canvas);
}

.accordion-item + .accordion-item {
  border-top: 1px solid var(--border-strong);
}

.accordion-trigger {
  width: 100%;
  text-align: left;
  background: var(--bg-surface);
  border: none;
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.accordion-trigger:hover,
.accordion-trigger[aria-expanded="true"] {
  background: var(--bg-surface-hover);
  color: var(--accent-primary);
}

.accordion-content {
  padding: 1.25rem;
  display: none;
  border-top: 1px solid var(--border-subtle);
}

.accordion-content.open {
  display: block;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-canvas);
  font-size: 0.9rem;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-strong);
}

/* Forms */
.form-grid {
  display: grid;
  gap: 1rem;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--border-strong);
  background: var(--bg-canvas);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.preview-terminal {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  white-space: pre-wrap;
  min-height: 160px;
}

/* Footer */
.site-footer {
  background: var(--bg-surface);
  border-top: 2px solid var(--border-strong);
  padding: 2.5rem 0;
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.45rem;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  text-decoration: none;
}

.footer-legal-bar {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
}

/* Responsive Breakpoints */
@media (max-width: 768px) {
  .menu-toggle {
    display: inline-block;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-canvas);
    border-bottom: 2px solid var(--border-strong);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1.25rem;
    gap: 0.35rem;
    z-index: 50;
  }
  .main-nav.nav-open {
    display: flex;
  }
  .header-inner {
    gap: 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}}