:root {
  color-scheme: light;
  --ink: #111827;
  --muted: #64748b;
  --line: #dbe3ee;
  --surface: #ffffff;
  --soft: #f6f8fb;
  --accent: #0f766e;
  --accent-dark: #0f3f3c;
  --gold: #eab308;
  --blue: #2563eb;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 7vw;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand,
.nav,
.hero-actions,
.proof-row,
.footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: #fff;
  background: var(--accent-dark);
  border-radius: 8px;
}

.nav {
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav a:hover {
  color: var(--accent-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
}

.btn-small {
  min-height: 38px;
  padding: 0 14px;
  font-size: 14px;
}

.btn-primary {
  color: #fff;
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn-secondary {
  background: #fff;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: 72px 7vw 48px;
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.09), transparent 38%),
    linear-gradient(180deg, #fff, #f4f8fb);
}

.hero h1,
.section h2,
.cta h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.05;
}

.hero h1 {
  max-width: 780px;
  font-size: clamp(44px, 6.6vw, 82px);
}

.hero-text {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 20px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.proof-row {
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.proof-row span,
.tag-grid span {
  padding: 9px 12px;
  color: #1f2937;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
}

.product-visual {
  position: relative;
  min-height: 540px;
}

.phone-card,
.order-card,
.steps article,
.benefit-list article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

.phone-card {
  position: absolute;
  inset: 18px auto auto 0;
  width: min(330px, 80vw);
  padding: 18px;
  background: #111827;
  color: #fff;
}

.phone-header,
.card-title,
.order-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.phone-header {
  color: #cbd5e1;
  margin-bottom: 18px;
}

.message {
  width: fit-content;
  max-width: 92%;
  margin: 12px 0;
  padding: 11px 13px;
  border-radius: 8px;
  font-size: 14px;
}

.message.customer {
  margin-left: auto;
  color: #052e2b;
  background: #99f6e4;
}

.message.assistant {
  background: #334155;
}

.order-card {
  position: absolute;
  right: 0;
  bottom: 20px;
  width: min(390px, 86vw);
  padding: 22px;
}

.card-title {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.card-title span {
  color: var(--muted);
  font-weight: 800;
}

.card-title strong {
  color: #166534;
  background: #dcfce7;
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 12px;
}

.order-line {
  display: grid;
  gap: 2px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.order-line span {
  font-weight: 900;
}

.order-line small {
  color: var(--muted);
}

.order-total {
  padding-top: 18px;
}

.order-total span {
  color: var(--muted);
}

.order-total strong {
  font-size: 24px;
}

.section,
.cta {
  padding: 86px 7vw;
}

.video-section {
  background: #fff;
  padding-top: 72px;
  padding-bottom: 72px;
}

.video-frame {
  width: min(1320px, 100%);
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  overflow: hidden;
  background: #0f172a;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.14);
}

.video-frame iframe {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.section-heading {
  max-width: 860px;
  margin-bottom: 32px;
}

.section h2,
.cta h2 {
  font-size: clamp(30px, 4vw, 52px);
}

.steps,
.tag-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.steps article {
  padding: 24px;
}

.steps span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #fff;
  background: var(--accent);
  border-radius: 8px;
  font-weight: 900;
}

.steps h3,
.benefit-list strong {
  margin: 18px 0 8px;
  font-size: 20px;
}

.steps p,
.split p,
.benefit-list span {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1fr);
  gap: 52px;
  align-items: start;
  background: #fff;
}

.benefit-list {
  display: grid;
  gap: 14px;
}

.benefit-list article {
  display: grid;
  gap: 6px;
  padding: 20px;
  box-shadow: none;
}

.audience {
  background: #f8fafc;
}

.tag-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tag-grid span {
  min-height: 58px;
  display: flex;
  align-items: center;
}

.cta {
  color: #fff;
  background: var(--accent-dark);
}

.cta .eyebrow {
  color: #99f6e4;
}

.cta h2 {
  max-width: 880px;
  margin-bottom: 28px;
}

.cta .btn-primary {
  color: var(--accent-dark);
  background: #fff;
  border-color: #fff;
}

.footer {
  justify-content: space-between;
  gap: 16px;
  padding: 28px 7vw;
  color: var(--muted);
  background: #fff;
  border-top: 1px solid var(--line);
}

@media (max-width: 920px) {
  .topbar {
    padding: 0 20px;
  }

  .nav {
    display: none;
  }

  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 54px 20px 32px;
  }

  .product-visual {
    min-height: 620px;
  }

  .section,
  .cta {
    padding: 64px 20px;
  }

  .steps,
  .tag-grid {
    grid-template-columns: 1fr;
  }

  .phone-card,
  .order-card {
    position: relative;
    inset: auto;
    width: 100%;
  }

  .order-card {
    margin-top: 18px;
  }
}