:root {
  --bg: #0e0e10;
  --panel: #17171b;
  --panel-2: #1f1f25;
  --ink: #f4f3f0;
  --muted: #a3a29c;
  --line: #2c2c33;
  --accent: #d6ff3f;
  --accent-ink: #0e0e10;
  --radius: 16px;
  font-size: 17px;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; background: var(--bg); color: var(--ink);
  font-family: "Satoshi", ui-sans-serif, system-ui, -apple-system, sans-serif;
  line-height: 1.5; -webkit-font-smoothing: antialiased;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: radial-gradient(circle at center, rgba(214,255,63,0.6) 1.3px, transparent 1.7px);
  background-size: 28px 28px; opacity: 0.14;
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 35%, transparent 100%);
          mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 35%, transparent 100%);
}
.lab-head, .lab-main, .lab-foot { position: relative; z-index: 1; }

.lab-head { max-width: 1040px; margin: 0 auto; padding: 22px 24px; }
.lab-word { font-weight: 900; letter-spacing: -0.02em; font-size: 1.1rem; }

.lab-main { max-width: 1040px; margin: 0 auto; padding: 40px 24px 60px; }
.lab-hero { max-width: 640px; margin: 0 0 44px; }
.lab-hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.4rem); line-height: 1.04;
  letter-spacing: -0.035em; font-weight: 900; margin: 0 0 14px;
}
.lab-hero .hl { color: var(--accent); }
.lab-sub { color: var(--muted); font-size: 1.1rem; max-width: 48ch; }

.lab-tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.tool-card {
  display: block; text-decoration: none; color: var(--ink);
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}
.tool-card:hover { border-color: var(--accent); box-shadow: 0 14px 40px rgba(0,0,0,0.5); transform: translateY(-2px); }
.tool-tag {
  display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--accent-ink); background: var(--accent);
  padding: 3px 10px; border-radius: 100px; margin-bottom: 14px;
}
.tool-card h2 { font-size: 1.7rem; font-weight: 900; letter-spacing: -0.03em; margin: 0 0 8px; }
.tool-card p { color: var(--muted); margin: 0 0 18px; font-size: 0.98rem; }
.tool-go { font-weight: 800; color: var(--accent); }

.lab-foot {
  max-width: 1040px; margin: 0 auto; padding: 24px;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.lab-legal { color: var(--muted); opacity: 0.7; font-size: 0.75rem; margin: 0; }
.lab-links { display: flex; gap: 18px; }
.lab-links a { color: var(--muted); font-size: 0.8rem; text-decoration: none; }
.lab-links a:hover { color: var(--accent); }