:root {
  --bg-0: #0a0c10;
  --bg-1: #131822;
  --ink: #e6e8ef;
  --ink-dim: #8a93a6;
  --ink-faint: #545b6a;
  --accent: #7c80d6;
  --accent-deep: #4040a0;
  --line: rgba(255, 255, 255, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 50% -10%, rgba(124, 128, 214, 0.08) 0%, transparent 55%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 80%);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.lab-top {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 1rem 1.5rem;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 9, 13, 0.6);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.lab-brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.005em;
}
.lab-brand:hover { color: var(--accent); }
.lab-sep { color: var(--ink-faint); }
.lab-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.lab-home {
  margin-left: auto;
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 0.4rem 0.75rem;
  border-radius: 5px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.lab-home:hover { color: var(--accent); border-color: var(--accent); }

.lab-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 3rem;
}

.lab-intro {
  text-align: center;
  margin-bottom: 3rem;
}
.lab-intro h2 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin: 0 0 0.65rem;
  letter-spacing: -0.02em;
  font-weight: 700;
  background: linear-gradient(180deg, #ffffff 0%, #b0b6c5 100%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.lab-intro p {
  font-size: 1.05rem;
  color: var(--ink-dim);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.55;
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.lab-card {
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #161b25 0%, #0e1219 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.lab-card:hover {
  transform: translateY(-3px);
  border-color: rgba(124, 128, 214, 0.35);
  box-shadow:
    0 16px 32px -10px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(124, 128, 214, 0.15);
}

.lab-card-art {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.lab-card-art-c64 {
  background:
    radial-gradient(ellipse at 30% 20%, rgba(255, 255, 255, 0.08), transparent 60%),
    linear-gradient(135deg, var(--accent-deep) 0%, #2c2c80 100%);
}
.lab-card-art-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px
  );
  mix-blend-mode: multiply;
  pointer-events: none;
}
.lab-c64-mark {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 4rem;
  font-weight: 800;
  color: #c8caff;
  letter-spacing: 0.05em;
  text-shadow:
    0 0 20px rgba(200, 202, 255, 0.4),
    0 0 40px rgba(124, 128, 214, 0.3);
}

.lab-card-body {
  padding: 1.25rem 1.4rem 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.lab-card-body h3 {
  margin: 0 0 0.45rem;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.lab-card-body p {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ink-dim);
  flex: 1;
}
.lab-card-meta {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.68rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.lab-foot {
  text-align: center;
  padding: 1.25rem 1rem 1.75rem;
  font-size: 0.78rem;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
  border-top: 1px solid var(--line);
  margin-top: 3rem;
}
.lab-foot p { margin: 0; }
.lab-foot a { color: var(--ink-dim); text-decoration: none; }
.lab-foot a:hover { color: var(--accent); }

@media (max-width: 600px) {
  .lab-main { padding: 2.5rem 1rem 2rem; }
  .lab-grid { grid-template-columns: 1fr; gap: 1rem; }
  .lab-card-art { height: 140px; }
  .lab-c64-mark { font-size: 3rem; }
}

/* Marketing lab card */
.lab-card-art-marketing {
  background: linear-gradient(135deg, #2a1f54 0%, #4040a0 60%, #7c80d6 100%);
  position: relative;
  overflow: hidden;
}
.lab-card-art-marketing::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.07) 0 1px, transparent 1px 28px);
  pointer-events: none;
}
.lab-marketing-mark {
  position: absolute;
  inset: 0;
  display: flex; align-items: center; justify-content: center;
  font: 800 4.2rem/1 'Inter', sans-serif;
  color: #fff;
  letter-spacing: -0.02em;
  text-shadow: 0 4px 18px rgba(0,0,0,0.35);
}