:root {
  --wf-bg: #09090b;
  --wf-fg: #fafafa;
  --wf-fg-muted: #a1a1aa;
  --wf-border: #27272a;
  --wf-card-bg: #18181b;
  --wf-accent: #D4AF37; /* Gold from logo */
  --wf-accent-dim: #997d26;
  --wf-accent-bg: rgba(212, 175, 55, 0.1);
  
  --font-serif: "Playfair Display", "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -1px rgba(0,0,0,0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5), 0 4px 6px -2px rgba(0,0,0,0.3);
  --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.15);
}

body {
  background-color: var(--wf-bg);
  color: var(--wf-fg);
  font-family: var(--font-sans);
  margin: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  margin-top: 0;
  color: var(--wf-fg);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: 3rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 0.75rem; color: var(--wf-accent); }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }

a {
  color: var(--wf-accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #fff;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  border-bottom: 1px solid var(--wf-border);
  padding: 24px 0;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--wf-accent);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  height: 40px;
  width: auto;
  border-radius: 4px;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-link {
  color: var(--wf-fg-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-link.active {
  color: var(--wf-accent);
}

.main-content {
  padding: 48px 0 80px;
}

/* Cards */
.card {
  background: var(--wf-card-bg);
  border: 1px solid var(--wf-border);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-lg);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.spec-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 900px) {
  .spec-grid {
    grid-template-columns: 1fr;
  }
}

/* Components */
.btn {
  display: inline-block;
  background: var(--wf-accent);
  color: #000;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
  color: #000;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--wf-border);
  color: var(--wf-fg);
}

.btn-outline:hover {
  border-color: var(--wf-accent);
  color: var(--wf-accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--wf-accent-bg);
  color: var(--wf-accent);
  border: 1px solid rgba(212, 175, 55, 0.2);
}

/* Mockup Frames */
.mockup-frame {
  background: #121212;
  border: 1px solid #333;
  border-radius: 4px;
  padding: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  min-height: 400px;
}

/* Visualization Styles */
.vis-card {
  width: 400px;
  height: 240px;
  background: #fff;
  color: #000;
  padding: 30px;
  position: relative;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.vis-card.dark {
  background: #111;
  color: #d4af37;
}

.vis-letterhead {
  width: 400px;
  height: 565px; /* A4 aspect ratio approx */
  background: #fff;
  padding: 40px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  position: relative;
  color: #333;
}

.vis-website {
  width: 100%;
  height: 400px;
  background: #09090b;
  border: 1px solid #333;
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.vis-signage {
  width: 100%;
  height: 400px;
  background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://placehold.co/800x400/222/333?text=Building+Facade'); /* Fallback pattern if no image */
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.vis-wall {
  width: 100%;
  height: 400px;
  background: #2a2a2a; /* Wall color */
  box-shadow: inset 0 0 100px rgba(0,0,0,0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* Specific Logo Styles for Mockups */
.logo-mockup {
  display: flex;
  align-items: center;
  gap: 15px;
}
.logo-icon {
  width: 50px;
  height: auto;
}
.logo-text {
  font-family: var(--font-serif);
  font-weight: 700;
  text-transform: capitalize;
}

/* Spec Tables */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.spec-table th, .spec-table td {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--wf-border);
}

.spec-table th {
  color: var(--wf-fg-muted);
  font-weight: 500;
  width: 40%;
}

.spec-table td {
  color: var(--wf-fg);
  font-family: monospace;
}

/* Helper Text */
.dimension-line {
  position: absolute;
  background: var(--wf-accent);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 10px;
  color: #000;
  font-weight: bold;
  opacity: 0.8;
}

.marker {
  color: var(--wf-accent);
  font-family: monospace;
  font-size: 0.8rem;
  margin-top: 8px;
  display: block;
}