:root {
  --ink: #17211d;
  --muted: #5a6b62;
  --line: #dce7e1;
  --paper: #f6fbf8;
  --panel: #ffffff;
  --accent: #137f55;
  --accent-dark: #0d5f42;
  --gold: #e4b95a;
  --teal-soft: #e5f5ee;
  --blue-soft: #e9f0fb;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(19, 127, 85, 0.1), transparent 34%),
    linear-gradient(315deg, rgba(228, 185, 90, 0.13), transparent 38%),
    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, 64px);
  background: rgba(246, 251, 248, 0.86);
  border-bottom: 1px solid rgba(220, 231, 225, 0.9);
  backdrop-filter: blur(14px);
}

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

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a,
footer a,
.text-link {
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

nav a:hover,
footer a:hover,
.text-link:hover {
  text-decoration: underline;
}

main {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: calc(100vh - 72px);
  padding: 56px 0 70px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: clamp(3rem, 9vw, 6.6rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4.8vw, 4.3rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.08rem;
}

.lead {
  max-width: 630px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.65;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 800;
  text-decoration: none;
}

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

.button.primary:hover {
  background: var(--accent-dark);
}

.button.secondary {
  background: #ffffff;
}

.button.secondary:hover {
  border-color: var(--accent);
}

.product-panel {
  min-height: 480px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(23, 33, 29, 0.14);
}

.panel-toolbar {
  display: flex;
  gap: 8px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
  background: #edf6f1;
}

.panel-toolbar span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
}

.panel-toolbar span:nth-child(2) {
  background: var(--gold);
}

.panel-toolbar span:nth-child(3) {
  background: #577cc8;
}

.kanban {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 14px;
  min-height: 430px;
  padding: 18px;
  background:
    linear-gradient(90deg, var(--teal-soft), transparent),
    linear-gradient(180deg, #ffffff, var(--blue-soft));
}

.kanban article {
  min-height: 300px;
  padding: 16px;
  border: 1px solid rgba(220, 231, 225, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
}

.kanban strong {
  display: block;
  margin-bottom: 38px;
}

.kanban p {
  color: var(--muted);
  line-height: 1.55;
}

.section {
  padding: 82px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

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

.feature-grid article,
.notice {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
}

.feature-grid p,
.notice p,
.support p,
.steps {
  color: var(--muted);
  line-height: 1.65;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: 40px;
  align-items: start;
}

.steps {
  margin: 22px 0 0;
  padding-left: 22px;
}

.steps li {
  margin-bottom: 12px;
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  color: var(--accent-dark);
  background: var(--teal-soft);
}

.support {
  max-width: 820px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 28px 0 44px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

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

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

  .hero {
    min-height: auto;
  }

  .product-panel {
    min-height: 380px;
  }

  .kanban {
    min-height: 330px;
  }

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

@media (max-width: 640px) {
  main,
  footer {
    width: min(100% - 24px, 1180px);
  }

  nav {
    gap: 12px;
  }

  h1 {
    font-size: clamp(2.6rem, 15vw, 4rem);
  }

  .actions,
  footer {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .kanban,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .kanban article {
    min-height: 160px;
  }
}