:root {
  --bg: #0a0e14;
  --surface: #131822;
  --surface-2: #1a2030;
  --border: #232a3a;
  --cyan: #2dd4ee;
  --violet: #9b6bff;
  --text: #e4e8f1;
  --text-dim: #7d8699;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
h1, h2, h3, .brand { font-family: 'Space Grotesk', sans-serif; letter-spacing: -0.01em; }
.mono { font-family: 'JetBrains Mono', monospace; }
a { color: inherit; text-decoration: none; }

.glow-bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(circle at 20% 10%, rgba(45,212,238,0.10), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(155,107,255,0.09), transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(45,212,238,0.06), transparent 50%);
}

.grad-text {
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 6vw; position: sticky; top: 0; z-index: 10;
  background: rgba(10,14,20,0.75); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: 0.04em; }
.brand-icon { width: 28px; height: 28px; border-radius: 6px; }
.topnav { display: flex; align-items: center; gap: 28px; }
.topnav a:not(.btn) { color: var(--text-dim); font-size: 14px; transition: 0.15s; }
.topnav a:not(.btn):hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-block; font-weight: 600; padding: 12px 24px; border-radius: 8px;
  border: 1px solid var(--border); transition: 0.15s; font-size: 14px;
}
.btn-primary { background: linear-gradient(90deg, var(--cyan), var(--violet)); color: #04141a; border: none; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* Hero */
.hero {
  max-width: 720px; margin: 0 auto; padding: 100px 6vw 80px;
  text-align: center; display: flex; flex-direction: column; align-items: center;
}
.hero-icon { width: 96px; height: 96px; border-radius: 20px; margin-bottom: 24px; }
.eyebrow { color: var(--cyan); font-size: 13px; margin-bottom: 16px; opacity: 0.9; }
.hero h1 { font-size: clamp(32px, 6vw, 52px); font-weight: 700; margin-bottom: 20px; line-height: 1.15; }
.hero-sub { color: var(--text-dim); font-size: 17px; max-width: 560px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* Features */
.features {
  max-width: 1080px; margin: 0 auto; padding: 40px 6vw 100px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px;
}
.feature-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 28px; transition: 0.2s;
}
.feature-card:hover { border-color: rgba(45,212,238,0.35); transform: translateY(-2px); }
.feature-icon { font-size: 28px; margin-bottom: 14px; }
.feature-card h3 { font-size: 17px; margin-bottom: 8px; }
.feature-card p { color: var(--text-dim); font-size: 14px; line-height: 1.55; }

/* Commands */
.commands { max-width: 720px; margin: 0 auto; padding: 40px 6vw 100px; }
.commands h2 { text-align: center; font-size: 28px; margin-bottom: 32px; }
.command-list { display: flex; flex-direction: column; gap: 10px; }
.command-row {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 20px;
}
.command-row code {
  font-family: 'JetBrains Mono', monospace; color: var(--cyan); font-size: 13px;
  background: var(--surface-2); padding: 4px 10px; border-radius: 6px; flex-shrink: 0;
}
.command-row span { color: var(--text-dim); font-size: 14px; }

/* Invite */
.invite {
  max-width: 600px; margin: 0 auto; padding: 60px 6vw 120px; text-align: center;
}
.invite h2 { font-size: 30px; margin-bottom: 12px; }
.invite p { color: var(--text-dim); margin-bottom: 32px; }

/* Footer */
footer {
  text-align: center; padding: 30px; color: var(--text-dim); font-size: 13px;
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .topnav a:not(.btn) { display: none; }
}