:root {
  color-scheme: light;
  --bg: #f4f7f1;
  --ink: #122019;
  --muted: #63716b;
  --line: #dce5dd;
  --green: #0f6b42;
  --green-strong: #063f27;
  --gold: #d49b1d;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
  letter-spacing: 0;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 72px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(18, 32, 25, 0.1);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 18px;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

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

.hero {
  min-height: calc(100vh - 72px);
  padding: 54px max(24px, calc((100vw - 1180px) / 2)) 36px;
  display: grid;
  grid-template-columns: minmax(360px, 0.82fr) minmax(520px, 1.18fr);
  gap: 34px;
  align-items: center;
}

.hero-copy {
  align-self: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

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

h1 {
  margin-bottom: 18px;
  font-size: 68px;
  line-height: 0.96;
}

h2 {
  margin-bottom: 14px;
  font-size: 34px;
  line-height: 1.18;
}

.lead {
  max-width: 650px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.72;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 900;
}

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

.button.primary:hover {
  background: var(--green-strong);
}

.button.secondary {
  border: 1px solid var(--line);
  background: #ffffff;
}

.button.disabled {
  pointer-events: none;
  opacity: 0.58;
}

.hero-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(18, 32, 25, 0.14);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 22px 54px rgba(16, 60, 36, 0.18);
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.section,
.download-band {
  padding: 70px max(24px, calc((100vw - 1180px) / 2));
}

.section-head {
  max-width: 760px;
  margin-bottom: 24px;
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.flow-grid article,
.access-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: var(--panel);
}

.flow-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.flow-grid p,
.access-panel p,
.download-band p,
.download-band li {
  color: var(--muted);
  line-height: 1.68;
}

.download-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 24px;
  align-items: center;
  background: #ffffff;
  border-block: 1px solid var(--line);
}

.download-band ul {
  margin: 18px 0 0;
  padding-left: 20px;
}

.download-action {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: #f8fbf7;
  text-align: center;
}

.download-action img {
  width: 116px;
  height: 116px;
  border-radius: 24px;
  display: block;
  margin: 0 auto 18px;
}

.download-action .button {
  width: 100%;
}

#download-meta {
  margin: 12px 0 0;
  font-size: 13px;
}

.access-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.access-panel p {
  margin-bottom: 0;
  max-width: 780px;
}

.footer {
  min-height: 90px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 920px) {
  .nav {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 36px;
  }

  h1 {
    font-size: 48px;
  }

  .lead {
    font-size: 17px;
  }

  .flow-grid,
  .download-band {
    grid-template-columns: 1fr;
  }

  .access-panel,
  .footer {
    display: grid;
    justify-items: start;
  }
}