/* styles.css - PureRPC Wiry Black-on-White Stark Bordery Minimal */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Space+Grotesk:wght@500;600&display=swap');

:root {
  --bg: #ffffff;              /* clean white */
  --surface: #f9f9f9;         /* very light off-white for subtle panels */
  --text: #0a0a0a;            /* deep black text */
  --text-secondary: #555555;
  --accent: #d97706;          /* muted warm amber - used sparingly */
  --border: #000000;          /* PURE BLACK borders - stark contrast */
  --radius: 8px;
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -1.5px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

/* Header */
header {
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 29px;
  font-weight: 600;
  letter-spacing: -1.2px;
  color: var(--text);
  text-decoration: none;
}

.logo span {
  color: var(--accent);
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  margin-left: 36px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}

/* Buttons */
.btn {
  padding: 13px 30px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all 0.25s ease;
  border: 1.5px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: #b45309;
  transform: translateY(-1px);
}

.btn-outline {
  border: 1.5px solid var(--border);
  color: var(--text);
}

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

/* Sections */
section {
  padding: 140px 0;
}

/* Hero */
.hero {
  padding-top: 180px;
  padding-bottom: 160px;
  text-align: center;
}

.hero h1 {
  font-size: 4.4rem;
  margin-bottom: 28px;
}

.hero p {
  font-size: 1.4rem;
  max-width: 660px;
  margin: 0 auto 52px;
  color: var(--text-secondary);
}

/* Metrics */
.metric {
  font-size: 3.5rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -1px;
}

/* Bordery Elements - pure black borders */
.bordered,
section [style*="border"] {
  border: 1px solid var(--border);
  padding: 40px;
  transition: border-color 0.3s ease;
}

.bordered:hover,
section [style*="border"]:hover {
  border-color: #333333;
}

/* Footer */
footer {
  padding: 100px 0 60px;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Utility */
.text-center {
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }
  
  .hero h1 {
    font-size: 3.2rem;
  }
  
  section {
    padding: 100px 0;
  }
  
  .nav-links a {
    margin-left: 20px;
    font-size: 0.95rem;
  }
}