:root {
  --bg-color: #0C1116;
  --text-color: #E8EEF2;
  --text-muted: #8BA3B4;
  --accent-orange: #FF6B35;
  --panel-bg: #111923;
  --border-color: #1F2C38;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: 'Noto Sans SC', sans-serif;
  line-height: 1.6;
  background-image: linear-gradient(var(--border-color) 1px, transparent 1px),
                    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 40px 40px;
  background-attachment: fixed;
}
h1, h2, h3, h4, h5, h6 { font-family: 'Space Grotesk', sans-serif; font-weight: 700; color: #fff; }
.mono { font-family: 'JetBrains Mono', monospace; text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.85rem; color: var(--text-muted); }
a { color: var(--accent-orange); text-decoration: none; transition: color 0.2s; }
a:hover { color: #fff; }
header { border-bottom: 1px solid var(--border-color); padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; background: rgba(12, 17, 22, 0.9); backdrop-filter: blur(5px); position: sticky; top: 0; z-index: 100; }
.logo { font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: bold; display: flex; align-items: center; gap: 0.8rem; color: #fff; }
.logo-icon { width: 32px; height: 32px; }
nav ul { list-style: none; display: flex; gap: 2rem; }
nav ul li a { color: var(--text-muted); font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; text-transform: uppercase; }
nav ul li a:hover { color: var(--accent-orange); }

.hero { text-align: center; padding: 8rem 2rem; border-bottom: 1px solid var(--border-color); }
.hero h1 { font-size: 3.5rem; margin-bottom: 1rem; letter-spacing: -0.02em; }
.hero p { color: var(--text-muted); font-size: 1.25rem; margin-bottom: 3rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-group { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.btn { display: inline-block; padding: 1rem 2.5rem; border: 1px solid var(--accent-orange); background: transparent; color: var(--accent-orange); font-family: 'Space Grotesk', sans-serif; font-weight: bold; font-size: 1rem; cursor: pointer; border-radius: 4px; transition: all 0.3s ease; text-transform: uppercase; letter-spacing: 0.05em; }
.btn-primary { background: var(--accent-orange); color: var(--bg-color); }
.btn-primary:hover { background: transparent; color: var(--accent-orange); }
.btn:hover { background: var(--accent-orange); color: var(--bg-color); }

section { padding: 6rem 2rem; border-bottom: 1px solid var(--border-color); }
.section-title { text-align: center; font-size: 2.5rem; margin-bottom: 4rem; letter-spacing: -0.01em; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; }
.card { background: var(--panel-bg); border: 1px solid var(--border-color); padding: 2.5rem; border-radius: 6px; transition: transform 0.2s, border-color 0.2s; }
.card:hover { transform: translateY(-5px); border-color: var(--accent-orange); }
.card h3 { margin-bottom: 1rem; font-size: 1.4rem; color: #fff; margin-top: 0.5rem; }
.card p { color: var(--text-muted); }

.pricing-table { max-width: 1200px; margin: 0 auto; width: 100%; border-collapse: collapse; background: var(--panel-bg); border-radius: 6px; overflow: hidden; }
.pricing-table th, .pricing-table td { border: 1px solid var(--border-color); padding: 1.5rem; text-align: center; }
.pricing-table th { background: rgba(31, 44, 56, 0.5); color: var(--text-muted); font-family: 'JetBrains Mono', monospace; text-transform: uppercase; letter-spacing: 0.05em; }
.pricing-table td { color: var(--text-color); }
.pricing-table td .btn { padding: 0.6rem 1.5rem; font-size: 0.9rem; }

footer { padding: 4rem 2rem; text-align: center; font-size: 0.9rem; border-top: 1px solid var(--border-color); }
footer ul { list-style: none; display: flex; justify-content: center; gap: 3rem; margin-bottom: 2rem; flex-wrap: wrap; }
footer ul li a { color: var(--text-muted); }
footer ul li a:hover { color: var(--accent-orange); }

/* Responsive adjustments */
@media (max-width: 768px) {
  header { flex-direction: column; gap: 1rem; padding: 1rem; }
  nav ul { flex-wrap: wrap; justify-content: center; gap: 1rem; }
  .hero { padding: 4rem 1rem; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .btn { width: 100%; text-align: center; padding: 1.2rem; } /* Touch friendly */
  .grid-3 { grid-template-columns: 1fr; }
  .section-title { font-size: 2rem; margin-bottom: 2rem; }
  section { padding: 3rem 1rem; }
  .pricing-table th, .pricing-table td { padding: 1rem 0.5rem; font-size: 0.9rem; }
}