:root {
  --bg-main: #07090e;
  --bg-card: rgba(15, 20, 31, 0.75);
  --bg-card-hover: rgba(23, 31, 48, 0.9);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(217, 119, 6, 0.4);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-gold: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.25);
  --grad-gold: linear-gradient(135deg, #fbbf24 0%, #d97706 50%, #92400e 100%);
  --max-w: 1140px;
  --font-serif: "Playfair Display", "Cinzel", Georgia, serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(at 0% 0%, rgba(217, 119, 6, 0.12) 0px, transparent 45%),
    radial-gradient(at 100% 10%, rgba(59, 130, 246, 0.08) 0px, transparent 40%),
    radial-gradient(at 50% 100%, rgba(245, 158, 11, 0.08) 0px, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 56px 56px, 56px 56px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.1rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.brand img {
  width: 28px;
  height: 28px;
  filter: drop-shadow(0 0 10px var(--accent-glow));
  transition: transform 0.35s ease;
}

.brand:hover img {
  transform: rotate(45deg) scale(1.08);
}

.brand-accent {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.site-nav ul {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.site-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.site-nav a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

.site-nav a.active {
  color: #ffffff;
  background: rgba(217, 119, 6, 0.18);
  border-color: var(--border-accent);
  box-shadow: 0 0 18px var(--accent-glow);
}

.site-main {
  flex: 1;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 4rem 1.75rem;
}

.hero {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 4rem 3rem;
  margin-bottom: 3.5rem;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-gold);
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  margin-bottom: 1.25rem;
}

.tag-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-gold);
  box-shadow: 0 0 8px var(--accent-gold);
}

h1 {
  font-family: var(--font-serif);
  font-size: 3.25rem;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  color: #ffffff;
}

.headline-gold {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p.lead {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 720px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--grad-gold);
  color: #07090e;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.85rem 1.75rem;
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 10px 25px -5px rgba(217, 119, 6, 0.4);
  transition: all 0.25s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -5px rgba(245, 158, 11, 0.55);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.85rem 1.75rem;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  text-decoration: none;
  transition: all 0.25s ease;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 1.75rem 1.5rem;
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.metric-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-accent);
}

.metric-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.metric-lbl {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 500;
  color: #ffffff;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 28px;
  background: var(--grad-gold);
  border-radius: 2px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7), 0 0 25px var(--accent-glow);
}

.card-visual {
  height: 180px;
  background: #0d131f;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card-visual svg {
  width: 100%;
  height: 100%;
  opacity: 0.75;
  transition: transform 0.4s ease, opacity 0.3s ease;
}

.card:hover .card-visual svg {
  transform: scale(1.05);
  opacity: 1;
}

.card-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-gold);
  margin-bottom: 0.85rem;
}

.card h3 {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 500;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.card-tags {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
}

.blueprint-box {
  border: 1px dashed rgba(245, 158, 11, 0.35);
  background: rgba(13, 19, 31, 0.6);
  border-radius: 16px;
  padding: 2.5rem;
  margin: 2rem 0 3.5rem;
  position: relative;
}

.blueprint-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1rem;
  display: block;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
}

.data-table th,
.data-table td {
  padding: 1.1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.data-table th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.05rem;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(7, 9, 14, 0.95);
  padding: 2.5rem 1.75rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 1.25rem;
  }
  .site-nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }
  h1 {
    font-size: 2.4rem;
  }
  .hero {
    padding: 2.5rem 1.75rem;
  }
}