:root {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --panel-soft: #f9fbff;
  --text: #111827;
  --muted: #52657a;
  --border: #dbe3ef;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #14b8a6;
  --radius: 8px;
  --shadow: 0 28px 80px rgba(15, 23, 42, 0.12), 0 3px 12px rgba(15, 23, 42, 0.05);
  --soft-shadow: 0 14px 40px rgba(15, 23, 42, 0.07), 0 2px 8px rgba(15, 23, 42, 0.04);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 50% -10%, rgba(37, 99, 235, 0.14), transparent 34%),
    linear-gradient(180deg, #eef5ff 0, var(--bg) 520px);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid rgba(219, 227, 239, 0.8);
  background: rgba(255, 255, 255, 0.9);
  padding: 0 30px;
  backdrop-filter: blur(16px);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-lockup strong,
.brand-lockup small {
  display: block;
}

.brand-lockup strong {
  font-size: 15px;
  letter-spacing: 0;
}

.brand-lockup small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  border-radius: var(--radius);
  background: var(--text);
  padding: 8px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.2);
}

.brand-mark span:first-child {
  grid-column: 1 / -1;
}

.brand-mark span {
  border-radius: 3px;
  background: #ffffff;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-nav a {
  color: #475569;
  font-size: 13px;
  font-weight: 740;
  text-decoration: none;
}

.header-nav a:hover {
  color: var(--primary);
}

.header-button,
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  padding: 0 18px;
  font-size: 14px;
  font-weight: 820;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.header-button,
.button-primary {
  border: 1px solid rgba(37, 99, 235, 0.18);
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.24);
}

.button-secondary {
  border: 1px solid var(--border);
  background: #ffffff;
  color: #1e293b;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.06);
}

.header-button:hover,
.button-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.button-secondary:hover {
  border-color: #bfcae0;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}

main {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: 28px;
}

.hero-section {
  display: grid;
  min-height: calc(100vh - 96px);
  grid-template-columns: minmax(340px, 0.72fr) minmax(680px, 1.28fr);
  gap: 44px;
  align-items: center;
  padding: 34px 0 52px;
}

.hero-content {
  max-width: 620px;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--primary);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin-bottom: 18px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--primary);
  padding: 0 12px;
  font-size: 12px;
  font-weight: 850;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(46px, 6.4vw, 82px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 10px;
  font-size: clamp(32px, 5vw, 50px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 17px;
  line-height: 1.25;
}

.hero-content p,
.section-heading p,
.feature-grid p,
.steps-list p,
.export-grid p,
.faq-list p,
.cta-section p {
  color: var(--muted);
}

.hero-content p {
  max-width: 560px;
  margin-bottom: 20px;
  font-size: 19px;
  color: #45566b;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #334155;
  font-size: 13px;
  font-weight: 780;
}

.hero-proof span::before {
  content: "";
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  border-radius: 50%;
  background:
    linear-gradient(135deg, rgba(20, 184, 166, 0.95), rgba(37, 99, 235, 0.95));
  box-shadow: 0 6px 14px rgba(20, 184, 166, 0.2);
}

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

.product-preview {
  justify-self: end;
  width: min(100%, 980px);
  overflow: hidden;
  border: 1px solid rgba(174, 190, 212, 0.9);
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 38px 110px rgba(15, 23, 42, 0.2), 0 8px 22px rgba(15, 23, 42, 0.09);
  transform: translateY(6px);
  margin: 0;
}

.product-preview img {
  display: block;
  width: 100%;
  height: auto;
}

.page-section,
.cta-section {
  padding: 68px 0;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 28px;
  text-align: center;
}

.section-heading p {
  font-size: 17px;
}

.section-heading.align-left {
  margin: 0;
  text-align: left;
}

.feature-grid,
.template-grid,
.export-grid,
.checklist-grid,
.audience-grid {
  display: grid;
  gap: 14px;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.checklist-grid span {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 58px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  padding: 14px 16px;
  color: #1e293b;
  font-size: 14px;
  font-weight: 820;
  box-shadow: var(--soft-shadow);
}

.checklist-grid span::before {
  content: "\2713";
  display: inline-grid;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  color: #ffffff;
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 7px 16px rgba(20, 184, 166, 0.2);
}

.audience-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-grid article,
.steps-list article,
.template-grid article,
.export-grid article,
.audience-grid article,
.faq-list details,
.cta-section {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--soft-shadow);
}

.feature-grid article,
.steps-list article,
.export-grid article,
.audience-grid article {
  padding: 24px;
}

.feature-grid article,
.template-grid article,
.export-grid article,
.audience-grid article,
.checklist-grid span {
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.feature-grid article:hover,
.template-grid article:hover,
.export-grid article:hover,
.audience-grid article:hover,
.checklist-grid span:hover {
  border-color: #c3d1e6;
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.1);
  transform: translateY(-3px);
}

.feature-icon {
  display: inline-grid;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  place-items: center;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: var(--radius);
  background: #eef4ff;
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
}

.feature-grid p,
.steps-list p,
.export-grid p,
.audience-grid p {
  margin-bottom: 0;
  font-size: 15px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

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

.steps-list article span {
  display: inline-grid;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  place-items: center;
  border-radius: var(--radius);
  background: #eef4ff;
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
}

.template-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.template-grid article {
  display: grid;
  min-height: 168px;
  align-content: end;
  padding: 22px;
  color: #1e293b;
  cursor: pointer;
  text-align: left;
}

.template-grid article::before {
  content: "";
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.16), rgba(20, 184, 166, 0.14));
}

.template-grid article h3 {
  margin-bottom: 6px;
}

.template-grid article p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 520;
}

.export-section .export-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
}

.export-grid article {
  min-height: 230px;
}

.export-grid article.is-highlighted {
  border-color: rgba(37, 99, 235, 0.34);
  background:
    linear-gradient(180deg, #ffffff, #f5f9ff);
  box-shadow: 0 28px 70px rgba(37, 99, 235, 0.16);
}

.file-chip {
  display: inline-flex;
  margin-bottom: 16px;
  border: 1px solid #c9d4e3;
  border-radius: 999px;
  background: #f8fafc;
  color: var(--primary);
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 850;
}

.is-highlighted .file-chip {
  border-color: rgba(37, 99, 235, 0.28);
  background: #eaf1ff;
}

.faq-list {
  display: grid;
  max-width: 880px;
  gap: 12px;
  margin: 0 auto;
}

.faq-list details {
  overflow: hidden;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.faq-list details:hover {
  border-color: #c3d1e6;
  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.08);
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  font-weight: 820;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--primary);
  font-size: 18px;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list details[open] summary {
  border-bottom: 1px solid var(--border);
}

.faq-list p {
  margin: 0;
  padding: 16px 20px 20px;
}

.cta-section {
  display: grid;
  justify-items: center;
  margin: 64px 0;
  padding: clamp(38px, 7vw, 64px);
  background:
    linear-gradient(180deg, #ffffff, #f7fbff);
  text-align: center;
}

.cta-section h2 {
  max-width: 760px;
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 26px;
  font-size: 13px;
  font-weight: 720;
}

@media (max-width: 1120px) {
  .hero-section,
  .split-section {
    grid-template-columns: 1fr;
  }

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

  .product-preview {
    justify-self: stretch;
    width: 100%;
    max-width: 980px;
  }

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

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

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px;
  }

  .header-nav {
    width: 100%;
    justify-content: space-between;
  }

  .header-button {
    width: 100%;
  }

  main {
    padding: 18px;
  }

  .hero-section {
    padding-top: 24px;
  }

  .feature-grid,
  .template-grid,
  .checklist-grid,
  .audience-grid,
  .export-section .export-grid {
    grid-template-columns: 1fr;
  }

  .page-section,
  .cta-section {
    padding: 40px 0;
  }

  .site-footer {
    align-items: center;
    flex-direction: column;
  }
}