:root {
  --bg: #0a0e14;
  --bg-elev: #111725;
  --bg-card: #141b2b;
  --border: #1f2b40;
  --text: #e6ecf5;
  --muted: #93a1b8;
  --accent: #35d0ba;
  --accent-2: #4c8dff;
  --radius: 14px;
  --maxw: 1120px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 20, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent); }
.brand span.io { color: var(--accent); }

.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-links a {
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--text); background: var(--bg-elev); text-decoration: none; }
.nav-links a.active { color: var(--accent); }

.nav-toggle { display: none; background: none; border: 0; color: var(--text); font-size: 26px; cursor: pointer; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .12s, background .15s, border-color .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #04121a; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); }

/* Hero */
.hero { position: relative; padding: 96px 0 72px; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute; inset: -40% 0 auto 0; height: 480px;
  background: radial-gradient(600px 300px at 30% 0%, rgba(53,208,186,.18), transparent 70%),
              radial-gradient(500px 300px at 80% 10%, rgba(76,141,255,.16), transparent 70%);
  pointer-events: none;
}
.eyebrow { color: var(--accent); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; }
.hero h1 { font-size: clamp(34px, 6vw, 58px); line-height: 1.08; margin: 14px 0 18px; font-weight: 800; letter-spacing: -.02em; }
.hero p.lead { font-size: clamp(17px, 2.4vw, 21px); color: var(--muted); max-width: 640px; margin: 0 0 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Sections */
.section { padding: 72px 0; }
.section h2 { font-size: clamp(26px, 4vw, 36px); font-weight: 800; letter-spacing: -.02em; margin: 0 0 12px; }
.section .sub { color: var(--muted); max-width: 620px; margin: 0 0 40px; }

/* Feature grid */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card .icon { font-size: 26px; margin-bottom: 12px; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* Project cards */
.project {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .15s, transform .15s;
}
.project:hover { border-color: var(--accent); transform: translateY(-3px); }
.project .thumb {
  height: 150px;
  background: linear-gradient(135deg, rgba(53,208,186,.22), rgba(76,141,255,.22));
  display: flex; align-items: center; justify-content: center;
  font-size: 44px;
}
.project .body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.project .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.tag { font-size: 12px; color: var(--accent); background: rgba(53,208,186,.1); border: 1px solid rgba(53,208,186,.25); padding: 3px 10px; border-radius: 999px; }
.project h3 { margin: 0 0 8px; font-size: 20px; }
.project p { margin: 0 0 20px; color: var(--muted); font-size: 15px; flex: 1; }
.project .links { display: flex; gap: 10px; flex-wrap: wrap; }
.affiliate-note { font-size: 13px; color: var(--muted); background: var(--bg-elev); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin-bottom: 32px; }

/* About */
.prose { max-width: 760px; }
.prose p { color: var(--muted); font-size: 17px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 40px 0; }
.stat { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; text-align: center; }
.stat .num { font-size: 34px; font-weight: 800; color: var(--accent); }
.stat .label { color: var(--muted); font-size: 14px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--muted); }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  background: var(--bg-elev); border: 1px solid var(--border); color: var(--text);
  font-family: inherit; font-size: 15px;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.contact-info a { display: block; margin-bottom: 10px; color: var(--text); }
.contact-info a:hover { color: var(--accent); }

/* CTA band */
.cta {
  background: linear-gradient(135deg, rgba(53,208,186,.12), rgba(76,141,255,.12));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px;
  text-align: center;
  margin: 24px 0;
}
.cta h2 { margin: 0 0 12px; }
.cta p { color: var(--muted); margin: 0 0 24px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0; color: var(--muted); font-size: 14px; margin-top: 40px; }
.site-footer .row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }

@media (max-width: 860px) {
  .grid-3, .grid-2, .contact-grid, .stats { grid-template-columns: 1fr; }
  .nav-links {
    display: none;
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: var(--bg-elev); border-bottom: 1px solid var(--border);
    padding: 12px 24px; gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .stats { grid-template-columns: repeat(3, 1fr); }
}