:root {
  --nano-purple: #5520d9;
  --nano-purple-2: #7b2cff;
  --nano-green: #00e61f;
  --nano-ink: #111318;
  --nano-muted: #5f6574;
  --nano-line: rgba(85,32,217,.14);
  --nano-soft: #f6f4ff;
  --nano-card: rgba(255,255,255,.82);
  --shadow: 0 24px 80px rgba(35,20,90,.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.marketing {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--nano-ink);
  background:
    radial-gradient(circle at 8% 5%, rgba(0,230,31,.14), transparent 24rem),
    radial-gradient(circle at 92% 12%, rgba(123,44,255,.16), transparent 26rem),
    linear-gradient(180deg, #fff 0%, #fbfbff 52%, #fff 100%);
}
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
  padding: 14px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(85,32,217,.10);
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(20px);
}
.brand-lockup { display: inline-flex; align-items: center; gap: 12px; font-weight: 900; letter-spacing: 0; }
.nano-symbol {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  position: relative;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, #34108f, var(--nano-purple-2));
  color: #fff;
  box-shadow: 0 16px 38px rgba(85,32,217,.28);
}
.nano-symbol::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  left: -4px;
  bottom: 5px;
  background: var(--nano-green);
}
.nav { display: flex; align-items: center; gap: 18px; color: var(--nano-muted); font-size: 14px; font-weight: 700; }
.nav a:hover { color: var(--nano-purple); }
.header-actions { display: flex; gap: 10px; align-items: center; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--nano-line);
  border-radius: 999px;
  background: #fff;
  color: var(--nano-ink);
  font-weight: 850;
  cursor: pointer;
}
.btn.primary {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(135deg, var(--nano-purple), var(--nano-purple-2));
  box-shadow: 0 18px 42px rgba(85,32,217,.24);
}
.btn.green {
  border-color: transparent;
  background: var(--nano-green);
  color: #101310;
}
.section {
  padding: clamp(52px, 8vw, 108px) clamp(18px, 5vw, 72px);
}
.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, .96fr);
  gap: clamp(32px, 6vw, 82px);
  align-items: center;
  padding-top: 42px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--nano-purple);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--nano-green);
}
h1, h2, h3 { margin: 0; letter-spacing: 0; }
h1 {
  max-width: 960px;
  margin-top: 18px;
  font-size: clamp(40px, 5.8vw, 72px);
  line-height: .96;
}
h2 {
  font-size: clamp(34px, 5vw, 68px);
  line-height: 1;
}
h3 { font-size: 22px; }
.lead {
  max-width: 760px;
  color: var(--nano-muted);
  font-size: clamp(17px, 1.7vw, 22px);
  line-height: 1.55;
}
.hero .lead { margin: 24px 0 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
  max-width: 760px;
}
.proof {
  padding: 16px;
  border: 1px solid var(--nano-line);
  border-radius: 22px;
  background: rgba(255,255,255,.72);
}
.proof strong { display: block; font-size: 24px; }
.proof span { color: var(--nano-muted); font-size: 13px; }
.device-stage {
  position: relative;
  min-height: 620px;
  display: grid;
  place-items: center;
}
.device-stage::before,
.device-stage::after {
  content: "";
  position: absolute;
  border-radius: 42% 58% 52% 48%;
  background: var(--nano-purple);
  opacity: .12;
}
.device-stage::before { width: 240px; height: 240px; right: 0; top: 10px; }
.device-stage::after { width: 120px; height: 120px; left: 20px; bottom: 80px; background: var(--nano-green); opacity: .26; }
.phone-demo {
  position: relative;
  width: min(360px, 82vw);
  height: 690px;
  border: 10px solid #17131f;
  border-radius: 46px;
  padding: 14px;
  background: #fff;
  box-shadow: 0 36px 90px rgba(21,16,44,.24);
  overflow: hidden;
  z-index: 1;
}
.phone-screen {
  height: 100%;
  border-radius: 34px;
  overflow: hidden;
  background: linear-gradient(160deg, #fff, #f7f4ff);
}
.nano-card-preview {
  min-height: 100%;
  padding: 22px;
  background:
    radial-gradient(circle at 95% 8%, rgba(85,32,217,.18), transparent 100px),
    radial-gradient(circle at 7% 18%, rgba(0,230,31,.22), transparent 80px);
}
.profile-avatar {
  width: 88px;
  height: 88px;
  border-radius: 999px;
  margin: 8px auto 12px;
  background: linear-gradient(135deg, var(--nano-purple), var(--nano-purple-2));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  font-size: 26px;
  box-shadow: 0 20px 50px rgba(85,32,217,.24);
}
.preview-name { text-align: center; font-size: 28px; font-weight: 900; }
.preview-role { text-align: center; color: var(--nano-muted); margin: 6px 0 18px; line-height: 1.35; }
.preview-slider {
  height: 150px;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--nano-purple), #140044);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  text-align: center;
  padding: 18px;
}
.preview-buttons { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 16px; }
.preview-button {
  min-height: 96px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  text-align: center;
  background: #fff;
  border: 1px solid rgba(85,32,217,.12);
  box-shadow: 0 12px 32px rgba(35,20,90,.10);
  font-weight: 850;
  font-size: 13px;
}
.preview-button img { width: 48px; height: 48px; object-fit: contain; display: block; margin-bottom: 4px; }
.section-heading { max-width: 920px; margin-bottom: 34px; }
.section-heading .lead { margin-top: 16px; }
.grid { display: grid; gap: 18px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.feature-card, .pricing-card, .use-card, .faq-card, .checkout-card {
  border: 1px solid var(--nano-line);
  border-radius: 28px;
  background: var(--nano-card);
  box-shadow: 0 18px 60px rgba(35,20,90,.08);
  padding: 26px;
}
.feature-card .icon, .use-card .icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(85,32,217,.14), rgba(0,230,31,.16));
  color: var(--nano-purple);
  font-weight: 950;
}
.feature-card p, .use-card p, .faq-card p { color: var(--nano-muted); line-height: 1.6; }
.band {
  background: linear-gradient(135deg, #22006c, var(--nano-purple));
  color: #fff;
  overflow: hidden;
  position: relative;
}
.band::before, .band::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: var(--nano-green);
}
.band::before { width: 120px; height: 120px; right: 10%; top: 22%; opacity: .95; }
.band::after { width: 280px; height: 280px; right: -70px; bottom: -110px; opacity: .14; }
.band .lead, .band p { color: rgba(255,255,255,.76); }
.workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  position: relative;
  z-index: 1;
}
.step {
  padding: 22px;
  border-radius: 24px;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.14);
}
.step strong { display: block; font-size: 32px; color: var(--nano-green); }
.pricing-card {
  position: relative;
  display: grid;
  gap: 16px;
}
.pricing-card.featured {
  border-color: rgba(85,32,217,.38);
  transform: translateY(-8px);
}
.price { font-size: 48px; font-weight: 950; }
.price span { color: var(--nano-muted); font-size: 15px; font-weight: 800; }
.pricing-card ul, .check-list { padding: 0; margin: 0; list-style: none; display: grid; gap: 10px; }
.pricing-card li, .check-list li { color: var(--nano-muted); line-height: 1.45; }
.pricing-card li::before, .check-list li::before { content: "✓"; color: var(--nano-green); font-weight: 950; margin-right: 8px; }
.checkout-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); gap: 22px; align-items: start; }
form.marketing-form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-weight: 850; font-size: 14px; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--nano-line);
  border-radius: 16px;
  padding: 13px 14px;
  font: inherit;
  background: rgba(255,255,255,.86);
}
textarea { min-height: 110px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.status-box {
  border-radius: 18px;
  padding: 14px;
  background: var(--nano-soft);
  color: var(--nano-muted);
  line-height: 1.55;
}
.site-footer {
  padding: 36px clamp(18px, 5vw, 72px);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  border-top: 1px solid var(--nano-line);
  color: var(--nano-muted);
}
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; font-weight: 800; }
.mobile-only { display: none; }
@media (max-width: 980px) {
  .nav { display: none; }
  .mobile-only { display: inline-flex; }
  .hero, .checkout-layout, .grid.two { grid-template-columns: 1fr; }
  .grid.three, .workflow { grid-template-columns: 1fr; }
  .hero { min-height: 0; }
  .device-stage { min-height: 520px; }
  .phone-demo { height: 560px; }
  .hero-proof, .form-grid { grid-template-columns: 1fr; }
  .pricing-card.featured { transform: none; }
}
@media (max-width: 560px) {
  .site-header { align-items: flex-start; }
  .header-actions .btn:not(.primary) { display: none; }
  .section { padding-left: 16px; padding-right: 16px; }
  h1 { font-size: 46px; }
  .phone-demo { width: 100%; }
}