.hero {
  position: relative;
  padding: 88px 0 56px;
  text-align: center;
}

.hero .eyebrow {
  display: inline-block;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  max-width: 16ch;
  margin: 0 auto 18px;
  line-height: 1.08;
}

.hero h1 .accent { color: var(--accent); }

.hero p {
  max-width: 52ch;
  margin: 0 auto;
  font-size: 1.02rem;
}

/* faint signal trace behind the hero */
.trace {
  position: absolute;
  left: 50%;
  top: 10px;
  transform: translateX(-50%);
  width: min(900px, 92vw);
  height: 120px;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}

.hero .wrap { position: relative; z-index: 1; }

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-bottom: 90px;
}

@media (max-width: 860px) {
  .module-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .module-grid { grid-template-columns: 1fr; }
}

.module-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px 22px 24px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.module-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(320px 160px at 20% 0%, var(--card-glow, var(--accent-glow)), transparent 60%);
  opacity: 0;
  transition: opacity 0.18s ease;
  pointer-events: none;
}

.module-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-accent, var(--accent));
  box-shadow: 0 14px 30px -18px var(--card-glow, var(--accent-glow));
}

.module-card:hover::before { opacity: 1; }

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--card-accent, var(--accent));
}

.led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--card-accent, var(--accent));
  box-shadow: 0 0 6px var(--card-glow, var(--accent-glow));
}

.card-icon {
  width: 46px;
  height: 46px;
  color: var(--card-accent, var(--accent));
}

.card-icon svg { width: 100%; height: 100%; }

.module-card h3 {
  font-size: 1.1rem;
  color: var(--text-main);
}

.module-card p {
  font-size: 0.88rem;
  margin: 0;
  color: var(--text-muted);
}

.card-status {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-status::before {
  content: "→";
  color: var(--card-accent, var(--accent));
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 16px;
  padding-top: 8px;
}