/* ==========================================================================
   Hero — premium dark drafting-sheet hero with animated blueprint diagram
   ========================================================================== */

.hero {
  position: relative;
  background: var(--ink);
  color: var(--text-on-ink);
  padding-top: calc(var(--nav-height) + var(--space-8));
  padding-bottom: var(--space-9);
  overflow: hidden;
}

/* faint blueprint grid backdrop */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-on-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-on-ink) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 40%, transparent 90%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-8);
  align-items: center;
}

.hero__copy .eyebrow { color: var(--text-on-ink-mute); }
.hero__copy .eyebrow::before { background: var(--amber); }

.hero__title {
  font-size: var(--fs-4xl);
  margin-top: var(--space-4);
  max-width: 14ch;
}
.hero__title .accent { color: var(--amber); }

.hero__desc {
  margin-top: var(--space-5);
  font-size: var(--fs-md);
  color: var(--text-on-ink-mute);
  max-width: 46ch;
}

.hero__ctas {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-7);
  flex-wrap: wrap;
}

.hero__titleblock-wrap {
  margin-top: var(--space-8);
}

.hero__stats {
  display: flex;
  gap: var(--space-7);
  margin-top: var(--space-7);
  flex-wrap: wrap;
}
.hero__stat-value {
  font-family: var(--font-mono);
  font-size: var(--fs-xl);
  color: var(--text-on-ink);
}
.hero__stat-label {
  font-size: var(--fs-xs);
  color: var(--text-on-ink-mute);
  margin-top: 2px;
}

/* ---- Animated diagram ---- */
.hero__diagram {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__diagram svg { width: 100%; height: 100%; overflow: visible; }

.blueprint-draw {
  stroke-dasharray: var(--len, 400);
  stroke-dashoffset: var(--len, 400);
  animation: draw-line 1.8s var(--ease) forwards;
  animation-delay: var(--delay, 0s);
}
@keyframes draw-line {
  to { stroke-dashoffset: 0; }
}

.hero__diagram .fade-in {
  opacity: 0;
  animation: fade-up 0.8s var(--ease) forwards;
  animation-delay: var(--delay, 0.6s);
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero__diagram .spin-slow {
  transform-origin: center;
  animation: spin-slow 26s linear infinite;
}
@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .blueprint-draw { stroke-dashoffset: 0; animation: none; }
  .hero__diagram .fade-in { opacity: 1; animation: none; }
  .hero__diagram .spin-slow { animation: none; }
}

@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__diagram { max-width: 380px; margin-inline: auto; order: -1; }
  .hero__title { max-width: none; }
}

@media (max-width: 560px) {
  .hero__ctas { flex-direction: column; align-items: stretch; }
  .hero__ctas .btn { width: 100%; }
}