:root {
  --bg: #f7f8f7;
  --ink: #17211d;
  --muted: #62706a;
  --line: #d8e0dc;
  --panel: #ffffff;
  --teal: #0f766e;
  --teal-dark: #0b514c;
  --amber: #b7791f;
  --dark: #111a20;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  letter-spacing: 0;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  min-height: 68px;
  padding: 14px 28px;
  background: rgba(17, 26, 32, 0.98);
  color: #ffffff;
  border-bottom: 1px solid #293942;
}

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

.brand span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid #3c555d;
  border-radius: 6px;
  color: #d8fffa;
  background: #14343a;
  font-weight: 800;
}

nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

nav a {
  color: #dbe5e1;
  text-decoration: none;
  font-size: 14px;
  font-weight: 650;
}

nav a:hover {
  color: #ffffff;
}

.hero,
.split-section,
.contact-section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 64px 28px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  gap: 42px;
  align-items: center;
}

.hero-copy,
.hero-media {
  min-width: 0;
}

.role,
.section-label,
.section-heading p {
  margin: 0 0 12px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.96;
  font-weight: 820;
  overflow-wrap: break-word;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.05;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.lead,
.split-section p,
.contact-section p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.58;
}

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

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 11px 16px;
  border-radius: 6px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 760;
  font-size: 14px;
}

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

.button.secondary {
  background: #ffffff;
  color: var(--teal-dark);
}

.hero-media {
  margin: 0;
}

.hero-media img {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(23, 33, 29, 0.16);
}

figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #ffffff;
  padding: 56px 28px;
}

.section-heading {
  max-width: 1180px;
  margin: 0 auto 26px;
}

.demo-grid,
.materials-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

article,
.materials-grid a,
.note,
.value-list div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

article {
  padding: 22px;
}

ul {
  margin: 0;
  padding-left: 20px;
  color: #33413b;
  line-height: 1.55;
}

li + li {
  margin-top: 7px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1.1fr);
  gap: 44px;
  align-items: start;
}

.value-list {
  display: grid;
  gap: 12px;
}

.value-list div {
  display: grid;
  gap: 6px;
  padding: 18px;
}

.value-list strong {
  color: var(--teal-dark);
}

.value-list span {
  color: var(--muted);
  line-height: 1.5;
}

.materials-grid a {
  min-height: 108px;
  padding: 18px;
  text-decoration: none;
  display: grid;
  align-content: start;
  gap: 9px;
  font-weight: 760;
}

.materials-grid a:hover {
  border-color: #9fb3ad;
  box-shadow: 0 14px 34px rgba(23, 33, 29, 0.08);
}

.materials-grid span {
  color: var(--amber);
  font-size: 12px;
  text-transform: uppercase;
  font-weight: 850;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.75fr);
  gap: 32px;
}

.note {
  padding: 18px;
  border-color: #e6d3a8;
  background: #fff9e9;
}

.note p {
  margin: 8px 0 0;
  font-size: 14px;
}

@media (max-width: 900px) {
  .site-header,
  .hero,
  .split-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 44px;
  }

  .demo-grid,
  .materials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 14px 20px;
  }

  .hero,
  .split-section,
  .contact-section {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero-copy,
  .hero-media,
  .lead {
    width: 100%;
    max-width: calc(100vw - 40px);
  }

  h1 {
    width: 100%;
    max-width: calc(100vw - 40px);
    font-size: clamp(30px, 8.5vw, 36px);
    line-height: 1.03;
  }

  .role,
  .section-label,
  .section-heading p {
    max-width: calc(100vw - 40px);
    font-size: 12px;
    line-height: 1.3;
    overflow-wrap: anywhere;
  }

  .button {
    justify-content: center;
    min-width: min(100%, 236px);
  }
}