/* Digital HQ Clean Modern Stylesheet */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #f59e0b;
  --dark: #0f172a;
  --dark-card: #1e293b;
  --light-bg: #f8fafc;
  --border: #e2e8f0;
  --text: #334155;
  --text-muted: #64748b;
  --white: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background-color: var(--white);
  line-height: 1.6;
}
.top-bar {
  background: var(--dark);
  color: #94a3b8;
  padding: 8px 5%;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #334155;
}
.top-bar a { color: #f1f5f9; text-decoration: none; font-weight: 600; }
.top-bar a:hover { color: var(--accent); }

header {
  padding: 1.2rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--white);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}
.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo span { color: var(--primary); }
nav ul { display: flex; list-style: none; gap: 2rem; align-items: center; }
nav a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
}
nav a:hover, nav a.active { color: var(--primary); }
.btn-nav {
  background: var(--primary);
  color: var(--white) !important;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.2s;
}
.btn-nav:hover { background: var(--primary-dark) !important; }

/* Sections */
.page-header {
  padding: 4rem 5% 3rem;
  background: radial-gradient(circle at top right, #eff6ff 0%, #ffffff 60%);
  text-align: center;
}
.page-header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.8rem;
}
.page-header p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto;
}

.content-section {
  padding: 4rem 5%;
}
.content-container {
  max-width: 1000px;
  margin: 0 auto;
}

/* Grid & Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px -5px rgba(0,0,0,0.06);
}

/* Footer */
footer {
  background: var(--dark);
  color: #94a3b8;
  padding: 4rem 5% 2rem;
  font-size: 0.9rem;
  margin-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 1.2rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a { color: #94a3b8; text-decoration: none; }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
}