:root {
  --bg: #08090b;
  --bg-panel: #0f1215;
  --bg-panel-2: #15181c;
  --line: rgba(255, 255, 255, 0.08);
  --line-soft: rgba(255, 255, 255, 0.05);
  --text: #f3f5f6;
  --text-dim: #9aa4ab;
  --text-dimmer: #6b757c;
  --accent: #22d3ee;
  --accent-2: #5eead4;
  --accent-soft: rgba(34, 211, 238, 0.12);
  --gold: #e8c27a;
  --radius: 18px;
  --radius-lg: 28px;
  --maxw: 1180px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

a { color: inherit; text-decoration: none; }

/* ---------- Nav ---------- */
header.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(16px) saturate(140%);
  background: rgba(8, 9, 11, 0.72);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.01em;
}
.brand svg { width: 26px; height: 26px; }
.nav-links {
  display: flex;
  gap: 34px;
  font-size: 14px;
  color: var(--text-dim);
}
.nav-links a { transition: color 0.2s ease; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 100px;
  background: var(--text);
  color: var(--bg);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-cta:hover { transform: translateY(-1px); opacity: 0.9; }
.nav-toggle { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 14.5px;
  cursor: pointer;
  border: none;
  transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #04211f;
  box-shadow: 0 8px 30px -8px rgba(34, 211, 238, 0.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 34px -6px rgba(34, 211, 238, 0.65); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.25); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px 2px var(--accent);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 200px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 1200px; height: 700px;
  background: radial-gradient(ellipse at center, rgba(34,211,238,0.16), transparent 65%);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
  position: relative;
}
.hero h1 {
  font-size: clamp(40px, 5.4vw, 68px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  font-weight: 650;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  font-size: 19px;
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 0 36px;
}
.hero-actions { display: flex; gap: 14px; margin-bottom: 40px; }
.hero-note { font-size: 13px; color: var(--text-dimmer); }
.hero-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 40px 100px -30px rgba(0,0,0,0.7);
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-stats {
  display: flex;
  gap: 44px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--line-soft);
}
.stat-num {
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.stat-label { font-size: 12.5px; color: var(--text-dimmer); margin-top: 4px; }

/* ---------- Section shell ---------- */
section { padding: 120px 0; position: relative; }
section.tight { padding: 90px 0; }
.section-head { max-width: 640px; margin-bottom: 64px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 {
  font-size: clamp(30px, 3.4vw, 44px);
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 16px;
  font-weight: 650;
}
.section-head p { font-size: 16.5px; color: var(--text-dim); margin: 0; }
.divider { border: none; border-top: 1px solid var(--line-soft); margin: 0; }

/* ---------- Vision band ---------- */
.vision {
  background: var(--bg-panel);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.vision-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.vision p.big {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--text);
}
.vision p.big .dim { color: var(--text-dimmer); }
.consumer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 44px;
}
.chip {
  font-size: 13.5px;
  padding: 9px 16px;
  border-radius: 100px;
  border: 1px solid var(--line);
  color: var(--text-dim);
  background: var(--bg-panel-2);
}

/* ---------- Product tabs ---------- */
.tabbar {
  display: inline-flex;
  padding: 5px;
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: 100px;
  gap: 4px;
  margin-bottom: 48px;
}
.tabbar button {
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.tabbar button.active {
  background: var(--text);
  color: var(--bg);
}
.product-panel {
  display: none;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items: center;
}
.product-panel.active { display: grid; }
.product-panel .media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4/5;
}
.product-panel .media img { width: 100%; height: 100%; object-fit: cover; }
.product-panel h3 { font-size: 30px; margin: 0 0 10px; letter-spacing: -0.01em; }
.product-panel .tagline { color: var(--accent); font-size: 14.5px; font-weight: 600; margin-bottom: 20px; }
.product-panel .desc { color: var(--text-dim); font-size: 15.5px; margin-bottom: 32px; max-width: 460px; }
.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 32px;
  margin-bottom: 36px;
}
.spec-grid div { border-top: 1px solid var(--line-soft); padding-top: 12px; }
.spec-grid .v { font-size: 18px; font-weight: 650; }
.spec-grid .k { font-size: 12.5px; color: var(--text-dimmer); margin-top: 3px; }
.price-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 24px;
}
.price-row .amt { font-size: 32px; font-weight: 650; }
.price-row .unit { color: var(--text-dimmer); font-size: 14px; }

/* ---------- Cartridge / how it works ---------- */
.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.how-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.step-list { display: flex; flex-direction: column; gap: 28px; }
.step {
  display: flex;
  gap: 20px;
}
.step .num {
  flex: none;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.step h4 { margin: 0 0 6px; font-size: 16.5px; }
.step p { margin: 0; color: var(--text-dim); font-size: 14.5px; }

/* ---------- Scenes (full bleed) ---------- */
.scene {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  min-height: 520px;
  display: flex;
  align-items: flex-end;
}
.scene img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  z-index: 0;
}
.scene::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8,9,11,0) 40%, rgba(8,9,11,0.88) 100%);
  z-index: 1;
}
.scene-copy {
  position: relative;
  z-index: 2;
  padding: 48px;
  max-width: 560px;
}
.scene-copy .eyebrow { color: var(--accent-2); }
.scene-copy h3 { font-size: 26px; margin: 0 0 10px; }
.scene-copy p { color: rgba(255,255,255,0.82); font-size: 15px; margin: 0; }
.scene-stack { display: grid; gap: 28px; }

/* ---------- Feature grid (security etc.) ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.feature {
  background: var(--bg-panel);
  padding: 34px 30px;
}
.feature .icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  color: var(--accent);
}
.feature h4 { margin: 0 0 8px; font-size: 16px; }
.feature p { margin: 0; color: var(--text-dim); font-size: 14px; }

/* ---------- Detail strip ---------- */
.detail-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.detail-strip .media { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); }
.detail-strip .media img { aspect-ratio: 4/5; object-fit: cover; }

/* ---------- App section ---------- */
.app-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.app-copy .feature-mini {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line-soft);
}
.app-copy .feature-mini:last-child { border-bottom: 1px solid var(--line-soft); }
.app-copy .feature-mini .dot {
  flex: none; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); margin-top: 7px;
}
.app-copy .feature-mini h4 { margin: 0 0 4px; font-size: 15px; }
.app-copy .feature-mini p { margin: 0; color: var(--text-dim); font-size: 13.5px; }

.phone {
  width: 300px;
  margin: 0 auto;
  border-radius: 40px;
  background: #000;
  border: 6px solid #1c1f22;
  box-shadow: 0 40px 90px -30px rgba(0,0,0,0.8);
  overflow: hidden;
}
.phone-screen {
  background: linear-gradient(180deg, #0c1012, #08090b);
  padding: 22px 18px 26px;
  color: var(--text);
  font-size: 13px;
  min-height: 560px;
}
.phone-screen .ph-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.phone-screen .ph-head .title { font-size: 15px; font-weight: 650; }
.phone-screen .ph-head .badge { font-size: 10.5px; color: var(--accent); border: 1px solid var(--accent-soft); padding: 4px 8px; border-radius: 100px; }
.ring-wrap { display: flex; justify-content: center; margin: 8px 0 22px; position: relative; }
.ring-num { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); text-align: center; }
.ring-num .big { font-size: 26px; font-weight: 700; display: block; }
.ring-num .small { font-size: 10px; color: var(--text-dimmer); }
.ph-list { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.ph-row {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg-panel-2);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 11px 13px;
}
.ph-row .name { font-size: 12.5px; }
.ph-row .draw { font-size: 11px; color: var(--text-dimmer); }
.ph-row .bar { width: 60px; height: 4px; border-radius: 4px; background: var(--line); overflow: hidden; margin-top: 5px; }
.ph-row .bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent-2), var(--accent)); }

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.price-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
}
.price-card.featured {
  border-color: rgba(34,211,238,0.4);
  background: linear-gradient(180deg, rgba(34,211,238,0.06), var(--bg-panel) 40%);
  position: relative;
}
.price-card .tag {
  position: absolute; top: -12px; left: 30px;
  background: var(--accent); color: #04211f;
  font-size: 11px; font-weight: 700; padding: 5px 12px; border-radius: 100px;
}
.price-card h3 { font-size: 19px; margin: 4px 0 6px; }
.price-card .sub { font-size: 13px; color: var(--text-dimmer); margin-bottom: 20px; }
.price-card .amt { font-size: 34px; font-weight: 650; margin-bottom: 4px; }
.price-card .cadence { font-size: 12.5px; color: var(--text-dimmer); margin-bottom: 22px; }
.price-card ul { list-style: none; padding: 0; margin: 0 0 28px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.price-card li { font-size: 13.5px; color: var(--text-dim); display: flex; gap: 9px; }
.price-card li::before { content: "✓"; color: var(--accent); flex: none; }
.plan-strip {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  padding-top: 40px;
  border-top: 1px solid var(--line-soft);
}
.plan-strip .pc { text-align: center; }
.plan-strip .pc .model { font-size: 12.5px; color: var(--text-dimmer); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
.plan-strip .pc .amt { font-size: 22px; font-weight: 650; }
.plan-strip .pc .cad { font-size: 12px; color: var(--text-dimmer); }

/* ---------- Trust strip / warranty ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.trust-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.trust-card .v { font-size: 22px; font-weight: 650; margin-bottom: 6px; }
.trust-card .k { font-size: 13px; color: var(--text-dim); }

/* ---------- FAQ ---------- */
.faq-item {
  border-top: 1px solid var(--line-soft);
  padding: 22px 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--line-soft); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 16px;
  font-weight: 550;
}
.faq-q .plus { color: var(--text-dimmer); font-size: 20px; transition: transform 0.25s ease; }
.faq-item.open .plus { transform: rotate(45deg); color: var(--accent); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--text-dim);
  font-size: 14.5px;
}
.faq-a-inner { padding-top: 14px; max-width: 640px; }

/* ---------- CTA band ---------- */
.cta-band {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #0e2a2a, #0a1c22 60%, #08090b);
  border: 1px solid var(--line);
  padding: 72px 60px;
  text-align: center;
}
.cta-band h2 { font-size: clamp(28px, 3.4vw, 40px); margin: 0 0 16px; letter-spacing: -0.02em; }
.cta-band p { color: var(--text-dim); margin: 0 0 34px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line-soft);
  padding: 56px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p { color: var(--text-dimmer); font-size: 13.5px; max-width: 260px; margin-top: 14px; }
footer h5 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dimmer); margin: 0 0 16px; }
footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 11px; }
footer li a { font-size: 13.5px; color: var(--text-dim); }
footer li a:hover { color: var(--text); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; color: var(--text-dimmer);
  padding-top: 28px; border-top: 1px solid var(--line-soft);
}

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .hero { padding: 150px 0 80px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .how-grid, .app-wrap, .product-panel { grid-template-columns: 1fr; }
  .product-panel .media { order: -1; aspect-ratio: 4/3; }
  .product-panel .media img { object-position: top center; }
  .feature-grid { grid-template-columns: 1fr; }
  .pricing-grid, .plan-strip, .trust-grid { grid-template-columns: 1fr; }
  .detail-strip { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  section { padding: 80px 0; }
  .wrap { padding: 0 20px; }
  .hero-stats { flex-wrap: wrap; gap: 28px; }
}