:root {
  --color-bg: #F9F7F1;
  --color-surface: #FFFFFF;
  --color-surface-dim: #F2EFE9;
  --color-graphite: #1C1B1A;
  --color-graphite-light: #2D2B29;
  --color-muted: #5C5854;
  --color-border: #DCD7CD;
  --color-border-subtle: #EBE7DF;
  --color-deep-red: #8B1E1E;
  --color-deep-red-dark: #681515;
  --color-copper: #C26D38;
  --color-copper-light: #D98854;
  
  --font-serif: "Ibarra Real Nova", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;

  --space-2: 4px;
  --space-4: 8px;
  --space-6: 12px;
  --space-8: 16px;
  --space-12: 24px;
  --space-16: 40px;
  --space-24: 64px;
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-graphite);
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-deep-red);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-copper);
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-copper);
  outline-offset: 3px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-graphite);
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

p, ul, ol, dl, table, form {
  margin-bottom: var(--space-12);
}

p:last-child, ul:last-child, ol:last-child {
  margin-bottom: 0;
}

.brand-wrap {
  overflow-wrap: anywhere;
}

/* Base Layout & Utilities */
.container {
  width: 100%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}

.section-spacer {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

.grid-cols-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
}

.subtle-rule {
  border: 0;
  height: 1px;
  background-color: var(--color-border);
  margin-top: var(--space-16);
  margin-bottom: var(--space-16);
}

/* Button & Action Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 0;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  min-width: 0;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-deep-red);
  color: #FFFFFF;
  border: 1px solid var(--color-deep-red);
}

.btn-primary:hover {
  background-color: var(--color-deep-red-dark);
  border-color: var(--color-deep-red-dark);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-graphite);
  border: 1px solid var(--color-graphite);
}

.btn-secondary:hover {
  background-color: var(--color-graphite);
  color: #FFFFFF;
}

.btn-copper {
  background-color: var(--color-copper);
  color: #FFFFFF;
  border: 1px solid var(--color-copper);
}

.btn-copper:hover {
  background-color: #A85A2A;
  color: #FFFFFF;
}

/* Header Styles */
.site-header {
  height: 64px;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 100;
}

.header-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  text-decoration: none;
  color: var(--color-graphite);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.25rem;
  min-width: 0;
}

.brand-link:hover {
  color: var(--color-deep-red);
}

.brand-logo-svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
}

.desktop-nav a {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-graphite);
  text-decoration: none;
  padding: 6px 8px;
  border-bottom: 2px solid transparent;
}

.desktop-nav a:hover, .desktop-nav a.active {
  color: var(--color-deep-red);
  border-bottom-color: var(--color-deep-red);
}

.header-cta-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  padding: 6px 10px;
  cursor: pointer;
  color: var(--color-graphite);
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.mobile-nav-menu {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: var(--space-8) var(--space-8) var(--space-12);
  z-index: 99;
}

.mobile-nav-menu.is-visible {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
}

.mobile-nav-list li {
  margin-bottom: var(--space-4);
}

.mobile-nav-list a {
  display: block;
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 8px 12px;
  color: var(--color-graphite);
  text-decoration: none;
  border-left: 3px solid transparent;
}

.mobile-nav-list a:hover, .mobile-nav-list a.active {
  background-color: var(--color-surface-dim);
  border-left-color: var(--color-deep-red);
  color: var(--color-deep-red);
}

/* Editorial Style - Rules, Columns & Typography */
.editorial-lead {
  font-size: 1.35rem;
  line-height: 1.5;
  color: var(--color-graphite-light);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-12);
  margin-bottom: var(--space-16);
}

.editorial-byline {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: var(--space-12);
}

.two-col-text {
  column-count: 2;
  column-gap: var(--space-16);
  column-rule: 1px solid var(--color-border);
}

/* Editorial Figures & Visual Media */
.editorial-figure {
  margin-top: var(--space-12);
  margin-bottom: var(--space-16);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  overflow: hidden;
}

.editorial-figure img {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

.figure-caption {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--color-muted);
  background-color: var(--color-surface-dim);
  padding: 10px var(--space-8);
  border-top: 1px solid var(--color-border-subtle);
}

.figure-caption strong {
  color: var(--color-graphite);
}

.hero-editorial-figure {
  margin-top: var(--space-12);
  margin-bottom: var(--space-16);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  overflow: hidden;
}

.hero-editorial-figure img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

/* Card Style: Horizontal Split */
.card-horizontal-split {
  display: grid;
  grid-template-columns: 280px 1fr;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-12);
  min-width: 0;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-horizontal-split:hover {
  border-color: var(--color-copper);
  box-shadow: 0 4px 14px rgba(28, 27, 26, 0.06);
}

.card-horizontal-split .card-media {
  background-color: var(--color-surface-dim);
  border-right: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  min-height: 200px;
  padding: 0;
}

.card-horizontal-split .card-media img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.card-horizontal-split:hover .card-media img {
  transform: scale(1.04);
}

.card-horizontal-split .card-content {
  padding: var(--space-12);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}

.card-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: var(--color-surface-dim);
  color: var(--color-graphite);
  padding: 3px 8px;
  border: 1px solid var(--color-border-subtle);
  text-transform: uppercase;
}

.card-tag.accent {
  background-color: #FAEEE5;
  color: var(--color-copper);
  border-color: #EAC9B5;
}

.card-title {
  margin-bottom: var(--space-6);
  font-size: 1.45rem;
}

.card-title a {
  text-decoration: none;
  color: var(--color-graphite);
}

.card-title a:hover {
  color: var(--color-deep-red);
}

.card-description {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-bottom: var(--space-12);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
  min-width: 0;
}

.card-meta-spec {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Statistics Grid & Modules */
.stats-banner {
  background-color: var(--color-graphite);
  color: #FFFFFF;
  padding: var(--space-16) var(--space-12);
  margin-top: var(--space-24);
  margin-bottom: var(--space-24);
  border-left: 4px solid var(--color-copper);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-12);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1;
  margin-bottom: var(--space-6);
}

.stat-label {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #C2BFB9;
}

/* Model Architecture Visual Table */
.data-table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin-top: var(--space-12);
  margin-bottom: var(--space-16);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.editorial-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.editorial-table th {
  background-color: var(--color-surface-dim);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px var(--space-8);
  border-bottom: 2px solid var(--color-border);
  color: var(--color-graphite);
}

.editorial-table td {
  padding: 12px var(--space-8);
  border-bottom: 1px solid var(--color-border-subtle);
  color: var(--color-graphite);
  font-family: var(--font-serif);
}

.editorial-table tr:hover {
  background-color: var(--color-surface-dim);
}

.mono-cell {
  font-family: var(--font-mono) !important;
  font-size: 0.85rem;
}

/* Callout & Quotes */
.editorial-quote {
  border-left: 3px solid var(--color-deep-red);
  padding: var(--space-6) 0 var(--space-6) var(--space-8);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--color-graphite-light);
  margin-top: var(--space-12);
  margin-bottom: var(--space-16);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-12);
}

.form-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
  color: var(--color-graphite);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 10px 12px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-graphite);
  font-family: var(--font-serif);
  font-size: 1rem;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--color-copper);
}

.form-input.is-invalid, .form-textarea.is-invalid {
  border-color: var(--color-deep-red);
  background-color: #FFF9F9;
}

.error-message {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-deep-red);
  margin-top: 4px;
  display: none;
}

.error-message.is-visible {
  display: block;
}

.form-status-alert {
  padding: var(--space-8);
  margin-bottom: var(--space-12);
  border: 1px solid var(--color-border);
  display: none;
}

.form-status-alert.is-visible {
  display: block;
}

.form-status-alert.success {
  background-color: #EAF4EE;
  border-color: #B4DEC2;
  color: #17522D;
}

/* Map Mock Block */
.static-map-canvas {
  width: 100%;
  height: 280px;
  background-color: var(--color-surface-dim);
  border: 1px solid var(--color-border);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-graphite);
  color: #FFFFFF;
  border-top: 2px solid var(--color-copper);
  padding: var(--space-8) 0;
  z-index: 1000;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.15);
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.cookie-text {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.4;
  color: #E2DFD8;
  max-width: 680px;
  margin-bottom: 0;
}

.cookie-text a {
  color: #FFFFFF;
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.cookie-actions .btn {
  padding: 6px 14px;
  font-size: 0.85rem;
}

/* Footer */
.site-footer {
  margin-top: auto;
  background-color: var(--color-graphite);
  color: #D3CFCA;
  border-top: 4px solid var(--color-deep-red);
  padding-top: var(--space-24);
  padding-bottom: var(--space-16);
  font-size: 0.95rem;
}

.site-footer a {
  color: #EAE6E1;
}

.site-footer a:hover {
  color: var(--color-copper-light);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-16);
  margin-bottom: var(--space-16);
}

.footer-brand h4 {
  color: #FFFFFF;
  font-size: 1.3rem;
  margin-bottom: var(--space-4);
}

.footer-brand p {
  color: #ADA9A3;
  font-size: 0.9rem;
  max-width: 360px;
}

.footer-nav h5, .footer-legal h5 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  margin-bottom: var(--space-6);
}

.footer-nav ul, .footer-legal ul {
  list-style: none;
  margin: 0;
}

.footer-nav li, .footer-legal li {
  margin-bottom: var(--space-4);
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.footer-bottom {
  border-top: 1px solid #33302E;
  padding-top: var(--space-8);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: #8C8782;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Responsive Rules */
@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .card-horizontal-split {
    grid-template-columns: 220px 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 52px;
  }
  .desktop-nav, .header-cta-desktop {
    display: none;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .grid-cols-2 {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  .two-col-text {
    column-count: 1;
  }
  .card-horizontal-split {
    grid-template-columns: 1fr;
  }
  .card-horizontal-split .card-media {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    min-height: 180px;
  }
  .card-horizontal-split .card-content {
    padding: var(--space-8);
  }
  .hero-editorial-figure img {
    height: 240px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
}

@media (max-width: 400px) {
  body {
    font-size: 1rem;
  }
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
  .cookie-actions {
    width: 100%;
    flex-direction: column;
  }
  .cookie-actions .btn {
    width: 100%;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}