/* Base */
:root {
  --bg: #08080d;
  --surface: #111118;
  --surface-2: #1a1a24;
  --amber: #f59e0b;
  --amber-dim: rgba(245, 158, 11, 0.12);
  --amber-border: rgba(245, 158, 11, 0.2);
  --text: #f0ede8;
  --text-dim: #8a8799;
  --text-subtle: #52515e;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2.5rem;
  border-bottom: 1px solid var(--amber-border);
  background: rgba(8, 8, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--amber);
  letter-spacing: 0.08em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-style: italic;
  letter-spacing: 0.03em;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2.5rem 5rem;
  max-width: 1280px;
  margin: 0 auto;
}
.hero-eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.75rem;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 9rem);
  font-weight: 900;
  line-height: 1;
  color: var(--text);
  margin-bottom: 2.5rem;
}
.hero-headline em {
  font-style: italic;
  color: var(--amber);
}
.hero-body {
  max-width: 560px;
  margin-bottom: 4rem;
}
.hero-body p {
  font-size: 1.1rem;
  color: var(--text-dim);
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--amber-border);
}

/* Philosophy */
.philosophy {
  padding: 7rem 2.5rem;
  background: var(--surface);
  border-top: 1px solid var(--amber-border);
  border-bottom: 1px solid var(--amber-border);
}
.philosophy-inner {
  max-width: 1280px;
  margin: 0 auto;
}
.philosophy-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.25rem;
}
.philosophy-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 4rem;
}
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.philosophy-item {
  background: var(--bg);
  border: 1px solid var(--amber-border);
  padding: 2.5rem 2rem;
}
.philosophy-icon {
  color: var(--amber);
  margin-bottom: 1.5rem;
  display: flex;
}
.philosophy-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.philosophy-item p {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* Portfolio */
.portfolio {
  padding: 7rem 2.5rem;
}
.portfolio-inner {
  max-width: 1280px;
  margin: 0 auto;
}
.portfolio-header {
  margin-bottom: 4rem;
}
.portfolio-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.25rem;
}
.portfolio-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--amber-border);
  border: 1px solid var(--amber-border);
}
.product-card {
  background: var(--surface);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  transition: background 0.2s ease;
  position: relative;
}
.product-card:hover {
  background: var(--surface-2);
}
.product-category {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
}
.product-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}
.product-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.55;
  flex: 1;
}
.product-arrow {
  color: var(--amber-dim);
  margin-top: auto;
  transition: color 0.2s ease;
}
.product-card:hover .product-arrow {
  color: var(--amber);
}

/* Difference */
.difference {
  padding: 7rem 2.5rem;
  background: var(--surface);
  border-top: 1px solid var(--amber-border);
  border-bottom: 1px solid var(--amber-border);
}
.difference-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}
.difference-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.25rem;
}
.difference-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 2rem;
}
.difference-body {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
/* Bentz AI Diagram */
.bentz-ai-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}
.ai-core {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--amber);
  color: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  box-shadow: 0 0 60px rgba(245, 158, 11, 0.25);
}
.ai-core small {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  opacity: 0.8;
}
.ai-nodes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  width: 100%;
}
.ai-node {
  background: var(--surface-2);
  border: 1px solid var(--amber-border);
  color: var(--text-dim);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.75rem 1rem;
  text-align: center;
  letter-spacing: 0.05em;
}
.ai-connector {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, var(--amber), transparent);
}

/* Closing */
.closing {
  padding: 8rem 2.5rem;
  text-align: center;
  background: var(--bg);
}
.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}
.closing-body {
  font-size: 1.1rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* Footer */
.footer {
  padding: 3rem 2.5rem;
  border-top: 1px solid var(--amber-border);
  background: var(--surface);
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--amber);
  letter-spacing: 0.08em;
}
.footer-tagline {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-style: italic;
  flex: 1;
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
}
.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--amber); }
.footer-sep { color: var(--text-subtle); }

/* Responsive */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .philosophy-grid { grid-template-columns: 1fr; }
  .difference-inner { grid-template-columns: 1fr; gap: 3rem; }
  .bentz-ai-diagram { order: -1; }
}

@media (max-width: 768px) {
  .hero { padding: 7rem 1.5rem 4rem; }
  .hero-headline { font-size: 3.5rem; }
  .hero-stats { gap: 1.5rem; }
  .stat-number { font-size: 2.25rem; }
  .product-grid { grid-template-columns: 1fr; }
  .philosophy, .portfolio, .difference, .closing { padding: 5rem 1.5rem; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--amber-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--amber); }

/* Selection */
::selection { background: var(--amber); color: var(--bg); }