:root {
  --primary: #0757d8;
  --primary-dark: #06245a;
  --navy: #020617;
  --cyan: #54d8ff;
  --ink: #10203f;
  --muted: #64748b;
  --line: rgba(15, 35, 75, .12);
  --soft: #eef6ff;
  --white: #fff;
  --shadow: 0 24px 70px rgba(3, 29, 82, .18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #f7fbff, #fff 46%, #eef6ff);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 16px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(255,255,255,.65);
  background: rgba(247, 251, 255, .84);
  backdrop-filter: blur(16px);
}
.brand, .topbar nav, .whats, .primary, .secondary {
  display: inline-flex;
  align-items: center;
}
.brand {
  gap: 10px;
  font-weight: 950;
}
.brand span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
}
.topbar nav {
  justify-content: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}
.whats, .primary {
  justify-content: center;
  min-height: 48px;
  border-radius: 999px;
  padding: 13px 20px;
  background: var(--primary);
  color: #fff;
  font-weight: 950;
  box-shadow: 0 18px 35px rgba(7, 87, 216, .25);
}
.secondary {
  justify-content: center;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 13px 20px;
  background: rgba(255,255,255,.82);
  color: var(--ink);
  font-weight: 950;
}
.light { background: #fff; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(380px, 1.1fr);
  gap: clamp(34px, 6vw, 84px);
  align-items: center;
  min-height: calc(100vh - 74px);
  padding: clamp(58px, 8vw, 112px) clamp(18px, 5vw, 72px);
}
.eyebrow {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 16px;
  border: 1px solid rgba(7, 87, 216, .16);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(7, 87, 216, .08);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 20px;
  font-size: clamp(42px, 6vw, 82px);
  line-height: .95;
  letter-spacing: 0;
}
h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1;
}
.lead, .hero-copy p:not(.eyebrow), .section-title p, .op-copy p, .demo p, .final p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}
.actions, .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.hero-tags span, .strip span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 12px;
  background: rgba(255,255,255,.76);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 900;
}
.hero-media {
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.82);
  border-radius: 28px;
  background: var(--navy);
  box-shadow: var(--shadow);
}
.hero-media img {
  width: 100%;
  min-height: 520px;
  object-fit: cover;
}
.strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding: 22px clamp(18px, 5vw, 72px);
  background: #061b45;
}
.strip span {
  border-color: rgba(255,255,255,.14);
  background: rgba(255,255,255,.08);
  color: #eaf4ff;
}
.problem, .section, .operation, .demo, .faq, .final {
  padding: clamp(72px, 9vw, 122px) clamp(18px, 5vw, 72px);
}
.problem {
  display: grid;
  grid-template-columns: 1.1fr repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.problem article, .features article, .faq details {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  background: rgba(255,255,255,.82);
  box-shadow: 0 18px 45px rgba(15, 35, 75, .06);
}
.problem article strong {
  display: block;
  margin-bottom: 10px;
  font-size: 20px;
}
.problem article p, .features p, .faq p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.6;
}
.problem .accent {
  background: linear-gradient(145deg, var(--primary), var(--primary-dark));
  color: #fff;
}
.problem .accent p { color: #dbeafe; }
.section-title {
  max-width: 860px;
  margin: 0 auto 34px;
  text-align: center;
}
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.features h3 { margin-bottom: 8px; }
.operation {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 38px;
  align-items: center;
  background: linear-gradient(135deg, #04183d, #0757d8 52%, #06245a);
  color: #fff;
}
.operation .eyebrow {
  border-color: rgba(255,255,255,.16);
  background: rgba(255,255,255,.12);
  color: #fff;
}
.operation p { color: #dbeafe; }
.product-showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.product-showcase img {
  aspect-ratio: 1;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 22px 60px rgba(0,0,0,.24);
}
.demo, .final {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.demo {
  background: #eef6ff;
}
.demo div, .final {
  max-width: 880px;
}
.faq {
  max-width: 980px;
  margin: 0 auto;
}
.faq details + details { margin-top: 12px; }
.faq summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
}
.faq p { margin-top: 12px; }
.final {
  display: grid;
  justify-items: center;
  margin: 0 auto;
  text-align: center;
}

@media (max-width: 980px) {
  .topbar { grid-template-columns: 1fr auto; }
  .topbar nav { display: none; }
  .hero, .operation, .problem { grid-template-columns: 1fr; }
  .hero-media img { min-height: 360px; }
  .features, .product-showcase { grid-template-columns: repeat(2, 1fr); }
  .demo { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 620px) {
  .topbar { padding: 12px 14px; }
  .brand { font-size: 14px; }
  .whats { display: none; }
  .hero { padding-top: 42px; }
  h1 { font-size: 42px; }
  .features, .product-showcase { grid-template-columns: 1fr; }
  .primary, .secondary { width: 100%; }
}