.mockup-app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 24px clamp(16px, 3vw, 34px) 36px;
}

.top-chrome {
  max-width: 1280px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.95rem 1.15rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  box-shadow: var(--shadow-panel);
}

.title-stack {
  display: grid;
  gap: 0.35rem;
}

.title-kicker {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  font-weight: 700;
}

.title-main {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--title);
}

.controls-group {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.device-btn {
  min-height: 38px;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.device-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(56, 189, 248, 0.44);
}

.device-btn.active {
  background: rgba(56, 189, 248, 0.18);
  border-color: rgba(56, 189, 248, 0.5);
}

.viewport-sim {
  margin: 0 auto;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  box-shadow: var(--shadow-xl);
  transition: max-width 220ms ease;
}

body[data-view='desktop'] .viewport-sim {
  max-width: 1380px;
}

body[data-view='tablet'] .viewport-sim {
  max-width: 1024px;
}

body[data-view='mobile'] .viewport-sim {
  max-width: 430px;
}

.hero-bleed {
  position: relative;
  min-height: clamp(340px, 62svh, 520px);
  width: 100%;
  overflow: hidden;
  color: #f8fafc;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.17) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.17) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(1060px, calc(100% - 44px));
  margin: 0 auto;
  min-height: inherit;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 1rem;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.58rem;
  padding: 0.52rem 0.94rem;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.36);
  background: rgba(56, 189, 248, 0.14);
  color: #bae6fd;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-label::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.48);
}

.hero-title {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  color: #f8fafc;
  text-shadow: 0 14px 34px rgba(2, 6, 23, 0.3);
}

.hero-subtitle {
  margin: 0;
  max-width: 50ch;
  font-size: clamp(0.96rem, 2vw, 1.18rem);
  line-height: 1.7;
  color: rgba(226, 232, 240, 0.88);
}

.stage-below {
  padding: 1.25rem;
  display: grid;
  gap: 1rem;
}

.stage-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.stage-actions .primary-btn,
.stage-actions .secondary-btn {
  justify-content: center;
  text-align: center;
}

.stage-note {
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.9rem;
}

.variant-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.variant-link {
  padding: 0.45rem 0.78rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--surface);
}

.variant-link.active {
  border-color: rgba(56, 189, 248, 0.5);
  color: var(--title);
  background: rgba(56, 189, 248, 0.14);
}

@media (max-width: 760px) {
  .stage-actions {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: clamp(2.4rem, 13vw, 3.7rem);
  }
}