/* Sub-page patterns */
.sub-hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
}
.sub-hero-bg {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
}
.sub-hero-bg .blob {
  position: absolute; border-radius: 50%;
  filter: blur(70px); opacity: 0.5;
  animation: imvFloat 9s ease-in-out infinite;
}
.sub-hero-inner { position: relative; z-index: 2; }
.sub-hero h1 {
  font-family: 'Outfit', sans-serif; font-weight: 700;
  font-size: clamp(48px, 7.5vw, 124px);
  line-height: 0.88; letter-spacing: -0.045em;
  margin: 24px 0 0; max-width: 16ch;
}
.sub-hero h1 .it { font-family: 'Instrument Serif', serif; font-style: italic; font-weight: 400; color: var(--imv-blue); }
.sub-hero h1 .dot-i { display: inline-block; position: relative; }
.sub-hero h1 .dot-i::after {
  content: ""; position: absolute;
  top: 0.05em; left: 50%; transform: translate(-50%, -100%);
  width: 0.18em; height: 0.18em; border-radius: 50%;
  background: var(--imv-orange);
}
.sub-hero p.lead { margin-top: 28px; max-width: 56ch; font-size: clamp(17px, 1.5vw, 20px); line-height: 1.5; color: var(--imv-muted); }
.sub-hero .actions { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; }

.sub-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 48px; }
.sub-tab { padding: 12px 22px; border-radius: 999px; border: 1px solid var(--imv-line); background: white; font-size: 14px; font-weight: 500; cursor: pointer; transition: all .25s var(--imv-ease); color: var(--imv-ink); font-family: inherit; }
.sub-tab.active { background: var(--imv-ink); color: white; border-color: var(--imv-ink); }
.sub-tab:hover:not(.active) { border-color: var(--imv-ink); }

.sub-section { padding: 100px 0; }
.sub-section.alt { background: var(--imv-cream); }
.sub-section.dark { background: var(--imv-ink); color: white; }
.sub-section.blue { background: var(--imv-blue); color: white; }
.sub-section.mint { background: var(--imv-mint); }
.sub-section.pink { background: var(--imv-pink); }
.sub-section.orange { background: var(--imv-orange); }

.sub-section-head { display: flex; justify-content: space-between; align-items: end; gap: 32px; flex-wrap: wrap; margin-bottom: 48px; }
.sub-section-head h2 { max-width: 18ch; }

.sub-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.sub-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.sub-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 1000px) {
  .sub-grid-3 { grid-template-columns: 1fr 1fr; }
  .sub-grid-4 { grid-template-columns: 1fr 1fr; }
  .sub-grid-2 { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .sub-grid-3, .sub-grid-4 { grid-template-columns: 1fr; }
}

.feat-card {
  padding: 32px;
  background: white;
  border: 1px solid var(--imv-line);
  border-radius: 24px;
  transition: transform .4s var(--imv-ease), box-shadow .4s var(--imv-ease);
  display: flex; flex-direction: column;
}
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--imv-shadow-lift); }
.feat-card-num { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--imv-blue); letter-spacing: 0.1em; font-weight: 600; }
.feat-card h3 { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; margin: 14px 0 10px; }
.feat-card p { color: var(--imv-muted); font-size: 14px; line-height: 1.55; margin: 0; }
.feat-card.dark { background: var(--imv-ink); color: white; border-color: transparent; }
.feat-card.dark p { color: rgba(255,255,255,0.7); }
.feat-card.dark .feat-card-num { color: var(--imv-orange); }
.feat-card.tinted { background: var(--imv-cream); border-color: transparent; }

.sub-cta-band {
  margin-top: 80px;
  background: var(--imv-orange);
  border-radius: 32px;
  padding: 56px;
  display: flex; justify-content: space-between; gap: 32px; align-items: center; flex-wrap: wrap;
}
.sub-cta-band h3 { font-size: clamp(28px, 3.5vw, 44px); font-weight: 700; letter-spacing: -0.03em; max-width: 18ch; margin: 0; }
.sub-cta-band h3 .it { font-family: 'Instrument Serif', serif; font-style: italic; font-weight: 400; color: var(--imv-blue); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--imv-ease), transform .8s var(--imv-ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* Mini phone */
.mini-phone {
  width: 280px; aspect-ratio: 9/19; background: var(--imv-ink); border-radius: 40px; padding: 10px;
  box-shadow: 0 30px 60px -25px rgba(11,15,44,0.4);
}
.mini-phone .mini-screen { width: 100%; height: 100%; background: var(--imv-cream); border-radius: 30px; overflow: hidden; padding: 24px 14px; position: relative; }