.hero {
  padding-top: clamp(4.5rem, 10vw, 7rem);
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

.hero-inner {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
  text-align: center;
  justify-items: center;
}

.hero h1 {
  max-width: 15ch;
}

.hero h1 .grad {
  background: var(--gradient-segment);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  max-width: 56ch;
  font-size: var(--fs-lead);
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-meta {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.hero-meta strong {
  color: var(--text-secondary);
}

/* ---- Signature: segmented download bar ---- */
.segbar {
  width: 100%;
  max-width: 720px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  padding: 1.75rem clamp(1.25rem, 4vw, 2.25rem) 1.5rem;
}

.segbar-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.segbar-status {
  color: var(--accent-cyan);
  transition: color var(--dur-med);
}

.segbar-status[data-state="merged"] {
  color: var(--accent-green);
}

.segbar-track {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  height: 34px;
}

.segbar-track.is-merged {
  gap: 0;
}

.seg {
  position: relative;
  border-radius: 4px;
  background: var(--bg-surface-3);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  transition: border-radius var(--dur-med) var(--ease-out);
}

.segbar-track.is-merged .seg:first-child {
  border-radius: 6px 0 0 6px;
}

.segbar-track.is-merged .seg:last-child {
  border-radius: 0 6px 6px 0;
}

.seg-fill {
  position: absolute;
  inset: 0;
  width: 0%;
  background: var(--gradient-segment);
}

.seg.is-done .seg-fill {
  width: 100% !important;
}

.segbar-labels {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  margin-top: 0.5rem;
}

.segbar-labels span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: center;
}