:root {
  --bg: #0a0a0a;
  --bg-elev: #111;
  --fg: #ededed;
  --muted: #8a8a8a;
  --border: #1f1f1f;
  --accent: #7afcb0;
  --accent-dim: #2a4a37;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--fg); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--accent); }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.mono { font-family: var(--mono); }
.accent { color: var(--accent); }
.muted { color: var(--muted); }

/* nav */
nav.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,10,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
nav.top .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
nav.top .brand {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: -.02em;
}
nav.top .brand b { color: var(--accent); font-weight: 600; }
nav.top ul { list-style: none; display: flex; gap: 28px; }
nav.top ul a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}
nav.top ul a:hover { color: var(--fg); }

/* hero */
.hero {
  padding: 140px 0 120px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(600px circle at 20% 30%, rgba(122,252,176,.06), transparent 50%),
    radial-gradient(800px circle at 80% 70%, rgba(122,252,176,.04), transparent 50%);
  pointer-events: none;
}
.hero .tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  padding: 6px 12px;
  border: 1px solid var(--accent-dim);
  border-radius: 100px;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.05;
  letter-spacing: -.03em;
  font-weight: 600;
  max-width: 880px;
  margin-bottom: 28px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 40px;
}
.hero .cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 14px;
  padding: 14px 22px;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: all .15s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
  font-weight: 500;
}
.btn-primary:hover { background: #6ae8a0; color: #0a0a0a; }
.btn-ghost { color: var(--fg); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* sections */
section { padding: 100px 0; border-bottom: 1px solid var(--border); }
section h2 {
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -.02em;
  font-weight: 600;
  margin-bottom: 16px;
  max-width: 720px;
}
section .section-tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 16px;
}
section p.section-lead {
  color: var(--muted);
  font-size: 17px;
  max-width: 640px;
  margin-bottom: 56px;
}

/* services grid */
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--accent-dim); }
.card .num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 18px;
}
.card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -.01em;
}
.card p { color: var(--muted); font-size: 15px; line-height: 1.6; }

/* about */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 720px) { .about-grid { grid-template-columns: 1fr; gap: 32px; } }

.about-grid p { color: var(--fg); font-size: 17px; margin-bottom: 18px; }
.about-grid .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px; }
.about-grid .stat { padding: 24px; border: 1px solid var(--border); border-radius: 10px; }
.about-grid .stat .n { font-family: var(--mono); font-size: 28px; color: var(--accent); margin-bottom: 6px; }
.about-grid .stat .l { font-size: 13px; color: var(--muted); }

/* contact */
.contact-box {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 56px;
  text-align: center;
}
@media (max-width: 600px) { .contact-box { padding: 36px 24px; } }
.contact-box h2 { margin: 0 auto 16px; }
.contact-box p { color: var(--muted); margin-bottom: 32px; }
.contact-box .email {
  font-family: var(--mono);
  font-size: 18px;
  color: var(--accent);
  display: inline-block;
  margin-bottom: 12px;
}

/* footer */
footer {
  padding: 48px 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
}
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }

/* case studies / blog list */
.list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--border); }
.list-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
@media (max-width: 600px) { .list-item { grid-template-columns: 1fr; gap: 8px; } }
.list-item .date { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.list-item h3 { font-size: 19px; font-weight: 600; letter-spacing: -.01em; margin-bottom: 6px; }
.list-item p { color: var(--muted); font-size: 15px; }
.list-item .tag {
  font-family: var(--mono); font-size: 12px;
  color: var(--accent); border: 1px solid var(--accent-dim);
  padding: 4px 10px; border-radius: 100px;
  justify-self: end;
}

/* page header */
.page-head {
  padding: 100px 0 60px;
  border-bottom: 1px solid var(--border);
}
.page-head .tag {
  font-family: var(--mono); font-size: 12px;
  color: var(--accent); text-transform: uppercase; letter-spacing: .12em;
  margin-bottom: 16px; display: inline-block;
}
.page-head h1 {
  font-size: clamp(36px, 5vw, 52px);
  letter-spacing: -.02em; font-weight: 600;
  margin-bottom: 16px;
}
.page-head p { color: var(--muted); font-size: 18px; max-width: 640px; }

.empty-note {
  margin-top: 40px;
  padding: 32px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 15px;
  text-align: center;
}
.empty-note .mono { color: var(--accent); display: block; margin-bottom: 8px; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }