:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #dbe3ef;
  --blue: #2563eb;
  --cyan: #06b6d4;
  --green: #16a34a;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

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;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand img {
  display: block;
  width: 180px;
  max-width: 48vw;
  height: auto;
}

.nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
}

.nav a:hover,
.inline-link {
  color: var(--blue);
}

.hero,
.content-grid,
.article-section,
.product,
.order,
.comparison,
.page-head {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: 52px 0 58px;
}

.article-hero {
  min-height: calc(100vh - 74px);
}

.product-hero {
  padding-bottom: 30px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  font-size: 13px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(40px, 5.8vw, 72px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.1;
  letter-spacing: 0;
}

.lead {
  max-width: 650px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
}

.primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: white;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.22);
}

.ghost {
  background: white;
  border-color: var(--line);
  color: var(--ink);
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.stats span {
  min-width: 142px;
  padding: 12px 14px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
}

.stats strong {
  display: block;
  color: var(--ink);
  font-size: 20px;
}

.hero-media img {
  display: block;
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 24px 0;
}

.content-card,
.article-section,
.product,
.order,
.comparison {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.content-card {
  padding: 26px;
}

.icon {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--green);
  font-weight: 800;
}

.content-card h2 {
  font-size: 22px;
}

.content-card p,
.article-section p,
.product p,
.order p,
.footer p {
  color: var(--muted);
  line-height: 1.6;
}

.article-section {
  padding: clamp(28px, 5vw, 52px);
  margin-top: 28px;
}

.article-section p {
  max-width: 860px;
}

.page {
  padding: 36px 0 58px;
}

.page-head {
  margin-top: 0;
}

.comparison {
  display: grid;
  margin-top: 24px;
  overflow: hidden;
}

.table-row {
  display: grid;
  grid-template-columns: 0.55fr 1fr 1fr;
  gap: 18px;
  padding: 18px 20px;
  border-top: 1px solid var(--line);
}

.table-row:first-child {
  border-top: 0;
}

.table-head {
  background: #eef5ff;
  color: var(--ink);
  font-weight: 800;
}

.product {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: start;
  padding: clamp(28px, 5vw, 52px);
  margin-top: 28px;
}

.features {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.features li {
  padding: 16px 18px;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.order {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: 36px;
  align-items: start;
  padding: clamp(28px, 5vw, 52px);
  margin-top: 28px;
  margin-bottom: 52px;
}

.form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: #334155;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 15px;
  color: var(--ink);
  font: inherit;
  outline: none;
}

input:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.form-note {
  margin: 0;
  font-size: 13px;
}

.thank-you {
  min-height: 56vh;
  display: grid;
  align-content: center;
}

.footer {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto 28px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 860px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 14px;
  }

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

  .article-hero {
    min-height: auto;
  }

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

  .table-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .brand img {
    width: 148px;
  }

  .nav {
    flex-wrap: wrap;
  }

  h1 {
    font-size: 38px;
  }

  .lead {
    font-size: 17px;
  }

  .button {
    width: 100%;
  }
}