:root {
  color-scheme: light;
  --ink: #14171f;
  --muted: #5f6675;
  --paper: #f7f5ef;
  --surface: #ffffff;
  --line: #ded8cc;
  --gold: #f4b740;
  --gold-dark: #a96500;
  --green: #146c55;
  --green-soft: #dff3ea;
  --coral: #b64233;
  --coral-soft: #f9e4de;
  --blue: #183f67;
  --shadow: 0 24px 70px rgba(32, 28, 20, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(247, 245, 239, 0.92);
  border-bottom: 1px solid rgba(20, 23, 31, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #1b1710;
  background: var(--gold);
  border-radius: 8px;
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.14);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 28px);
  color: var(--muted);
  font-size: 0.95rem;
}

nav a {
  text-decoration: none;
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(46px, 8vw, 96px) clamp(18px, 4vw, 56px) clamp(34px, 7vw, 72px);
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.7rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2.2vw, 1.8rem);
  line-height: 1.1;
}

.hero-text,
.section-heading p,
.value-statement,
.widget-card p,
.step-grid p,
.contact p,
footer {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.hero-text {
  max-width: 650px;
  margin: 24px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  color: #fff;
  background: var(--green);
}

.button.secondary {
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
}

.button.full {
  width: 100%;
}

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

.nfc-card,
.phone {
  position: absolute;
  box-shadow: var(--shadow);
}

.nfc-card {
  left: 0;
  top: 60px;
  display: grid;
  width: min(390px, 82vw);
  min-height: 245px;
  padding: 26px;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent 42%),
    linear-gradient(145deg, #173d63, #146c55 58%, #f4b740);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 8px;
}

.nfc-chip {
  width: 44px;
  height: 34px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 7px;
}

.nfc-title {
  align-self: end;
  font-size: 2.1rem;
  font-weight: 900;
}

.nfc-subtitle {
  color: rgba(255, 255, 255, 0.82);
  font-weight: 700;
}

.qr {
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: 78px;
  height: 78px;
  background:
    linear-gradient(90deg, #111 10px, transparent 10px 18px, #111 18px 28px, transparent 28px),
    linear-gradient(#111 10px, transparent 10px 18px, #111 18px 28px, transparent 28px),
    #fff;
  background-size: 28px 28px;
  border: 8px solid #fff;
  border-radius: 4px;
}

.phone {
  right: 0;
  bottom: 24px;
  width: min(300px, 72vw);
  padding: 14px;
  background: #10131a;
  border-radius: 34px;
}

.phone-screen {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 430px;
  padding: 34px 20px;
  text-align: center;
  background: var(--surface);
  border-radius: 24px;
}

.screen-brand {
  color: var(--green);
  font-weight: 900;
}

.screen-stars {
  color: var(--gold);
  font-size: 1.9rem;
  letter-spacing: 0;
}

.screen-button {
  margin-top: auto;
  padding: 14px 18px;
  color: #fff;
  background: var(--green);
  border-radius: 8px;
  font-weight: 900;
}

.experience-panel,
.steps,
.sales-section,
.contact {
  padding: clamp(56px, 8vw, 96px) clamp(18px, 4vw, 56px);
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 34px;
  text-align: center;
}

.review-widget {
  max-width: 620px;
  margin: 0 auto;
}

.widget-card {
  display: none;
  padding: clamp(22px, 5vw, 40px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.widget-card.is-active {
  display: block;
}

.client-logo {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--green);
  font-weight: 900;
}

.rating-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.rating-option {
  display: grid;
  grid-template-columns: minmax(95px, 150px) 1fr;
  gap: 14px;
  align-items: center;
  width: 100%;
  min-height: 64px;
  padding: 14px 16px;
  color: var(--ink);
  text-align: left;
  background: #fbfaf7;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}

.rating-option:hover,
.rating-option:focus-visible {
  border-color: var(--gold);
  outline: none;
  box-shadow: 0 0 0 4px rgba(244, 183, 64, 0.22);
}

.stars {
  color: var(--gold-dark);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 0;
}

.result-icon {
  display: grid;
  width: 58px;
  height: 58px;
  margin-bottom: 18px;
  place-items: center;
  color: #1f1704;
  background: var(--gold);
  border-radius: 8px;
  font-size: 2rem;
  font-weight: 900;
}

.result-icon.muted {
  color: var(--coral);
  background: var(--coral-soft);
}

.feedback-form {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: #fbfaf7;
  border: 1px solid var(--line);
  border-radius: 8px;
}

textarea {
  resize: vertical;
}

.text-button {
  margin-top: 16px;
  padding: 0;
  color: var(--green);
  font: inherit;
  font-weight: 900;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.steps {
  background: #fffdf7;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.step-grid article {
  min-height: 240px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.step-grid span {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--green);
  font-weight: 900;
}

.sales-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(280px, 1.18fr);
  gap: 30px;
  align-items: center;
  background: var(--blue);
}

.sales-section h2,
.sales-section .eyebrow,
.sales-section .value-statement {
  color: #fff;
}

.sales-section .eyebrow {
  color: #cde8dd;
}

.value-statement {
  max-width: 820px;
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 2.4rem);
  line-height: 1.2;
  font-weight: 800;
}

.contact {
  text-align: center;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
}

footer span:first-child {
  color: var(--ink);
  font-weight: 900;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .product-scene {
    min-height: 500px;
  }

  .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sales-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .topbar {
    align-items: flex-start;
  }

  nav {
    display: none;
  }

  h1 {
    font-size: clamp(2.65rem, 14vw, 4.2rem);
  }

  .product-scene {
    min-height: 455px;
  }

  .nfc-card {
    top: 18px;
  }

  .phone {
    right: 8px;
    bottom: 0;
    width: min(260px, 76vw);
  }

  .phone-screen {
    min-height: 360px;
  }

  .rating-option {
    grid-template-columns: 1fr;
  }

  .step-grid {
    grid-template-columns: 1fr;
  }

  .step-grid article {
    min-height: auto;
  }

  footer {
    flex-direction: column;
  }
}