:root {
  --bg-canvas: #0d2a33;
  --bg-surface: #143d4a;
  --bg-surface-elevated: #1b4f60;
  --text-primary: #e0f2f1;
  --text-muted: #93b7be;
  --accent-primary: #ff6f59;
  --accent-hover: #ff8a75;
  --border-subtle: rgba(224, 242, 241, 0.12);
  --border-focus: rgba(255, 111, 89, 0.6);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --shadow-card: 0 8px 24px -4px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 14px 32px -4px rgba(0, 0, 0, 0.5), 0 0 18px -4px rgba(255, 111, 89, 0.25);
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 4px;
  --max-width: 1200px;
}

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

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: 1rem;
  overflow-wrap: anywhere;
  hyphens: auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Left Brand Alignment */
.site-header {
  position: relative;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.25rem 2rem;
  width: 100%;
  z-index: 50;
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  text-align: left;
}

.brand-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--accent-primary);
  color: #0d2a33;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: var(--radius);
}

.brand-text {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-text span {
  color: var(--accent-primary);
}

/* Navigation Links */
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.site-nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.active {
  color: var(--accent-primary);
  background-color: rgba(255, 111, 89, 0.08);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.75rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  line-height: 1;
}

/* Main Content Area */
main {
  flex: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.content-narrow {
  max-width: 72ch;
  margin: 0 auto;
}

/* Hero Section */
.hero-editorial {
  margin-bottom: 3.5rem;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card);
}

.hero-editorial-img-wrap {
  width: 100%;
  height: 380px;
  position: relative;
  overflow: hidden;
}

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

.hero-editorial-body {
  padding: 2.5rem 2rem;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: rgba(255, 111, 89, 0.15);
  color: var(--accent-primary);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.5rem 0 0.5rem;
}

p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

p strong {
  color: var(--text-primary);
}

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-hover);
}

/* Grid & Cards */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
  margin: 2rem 0;
}

.dimension-card {
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s var(--ease-kinetic), box-shadow 0.3s var(--ease-kinetic);
}

.dimension-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  background: var(--bg-surface-elevated);
}

.card-img-wrap {
  width: 100%;
  height: 200px;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.mono-metric {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 0.5rem;
}

.mono-data-pill {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.2);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius);
  color: var(--text-primary);
  display: inline-block;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Monospace Tables */
.table-container {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: var(--radius);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

th, td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  background: rgba(0, 0, 0, 0.25);
  color: var(--text-primary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(255, 111, 89, 0.04);
}

/* Callout Modules */
.clearance-callout {
  border-left: 4px solid var(--accent-primary);
  background: var(--bg-surface);
  padding: 1.5rem 1.75rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 2rem 0;
}

.clearance-callout h3 {
  margin-top: 0;
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

/* Interactive Calculator Tool */
.calculator-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2.5rem 0;
  box-shadow: var(--shadow-card);
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.calc-field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.calc-field input,
.calc-field select {
  width: 100%;
  padding: 0.75rem;
  background: #091f26;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1rem;
}

.calc-field input:focus,
.calc-field select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.btn-coral {
  display: inline-block;
  background-color: var(--accent-primary);
  color: #0d2a33;
  padding: 0.85rem 1.75rem;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  font-family: var(--font-sans);
}

.btn-coral:hover,
.btn-coral:focus-visible {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  color: #0d2a33;
}

.calc-result-box {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: #091f26;
  border-radius: var(--radius);
  border: 1px dashed var(--accent-primary);
  font-family: var(--font-mono);
}

.calc-result-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 0.5rem;
}

/* Contact Message Tool */
.contact-tool-box {
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--border-subtle);
  margin-top: 2rem;
}

.contact-tool-box textarea {
  width: 100%;
  min-height: 120px;
  background: #091f26;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-mono);
  padding: 0.75rem;
  margin-bottom: 1rem;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  padding: 0.85rem 1.5rem;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--font-sans);
  transition: background-color 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(224, 242, 241, 0.15);
}

/* FAQ Accordion */
.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  padding: 1.5rem;
}

.faq-item h3 {
  margin-top: 0;
  color: var(--text-primary);
  font-size: 1.15rem;
}

/* Footer (Architectural Monospace) */
.site-footer {
  background-color: #081d24;
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
}

.footer-brand-title {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.footer-nav-list {
  list-style: none;
}

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

.footer-bottom {
  max-width: var(--max-width);
  margin: 2.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(224, 242, 241, 0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

/* Responsive Rules */
@media (max-width: 768px) {
  .site-header {
    padding: 1rem 1.25rem;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
    align-items: flex-start;
  }
  
  .site-nav.open {
    display: flex;
  }
  
  .hero-editorial-img-wrap {
    height: 240px;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  
  h1 {
    font-size: 1.75rem;
  }
}

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