:root {
  color-scheme: light;
  --ink: #17211f;
  --muted-ink: #53645f;
  --line: #d9e2dc;
  --paper: #fbfaf6;
  --soft: #eef4ef;
  --green: #2f756b;
  --green-dark: #1f514b;
  --gold: #e7a94c;
  --coral: #d9654b;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(26, 42, 38, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  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, 56px);
  background: rgba(251, 250, 246, 0.92);
  border-bottom: 1px solid rgba(217, 226, 220, 0.86);
  backdrop-filter: blur(16px);
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  color: var(--muted-ink);
  font-size: 0.95rem;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1.12fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: calc(100vh - 116px);
  padding: clamp(38px, 6vw, 76px) clamp(18px, 4vw, 56px) 42px;
  background:
    radial-gradient(circle at 88% 16%, rgba(231, 169, 76, 0.22), transparent 28%),
    linear-gradient(135deg, #f6f4ed 0%, #edf4ef 55%, #f8eee8 100%);
}

.hero-copy {
  max-width: 660px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 11ch;
  font-size: clamp(3.2rem, 8vw, 6.7rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-text {
  max-width: 600px;
  margin: 24px 0 0;
  color: var(--muted-ink);
  font-size: clamp(1.04rem, 1.7vw, 1.24rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

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

.button.secondary {
  background: rgba(255, 255, 255, 0.66);
  border-color: var(--line);
}

.button.full {
  width: 100%;
}

.button:hover {
  transform: translateY(-1px);
}

.sample-link {
  margin-top: -16px;
  color: var(--green-dark);
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

.sample-link:hover {
  text-decoration: underline;
}

.hero-media img {
  display: block;
  width: min(100%, 760px);
  margin-left: auto;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.metrics-strip div {
  min-height: 112px;
  padding: 24px clamp(18px, 3vw, 40px);
  border-right: 1px solid var(--line);
}

.metrics-strip div:last-child {
  border-right: 0;
}

.metrics-strip strong {
  display: block;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
}

.metrics-strip span {
  color: var(--muted-ink);
  font-weight: 700;
}

.section {
  padding: clamp(54px, 8vw, 96px) clamp(18px, 4vw, 56px);
}

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

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: 0;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: 22px;
  align-items: stretch;
}

.product-card,
.feature-grid article,
.example-card,
.kit-card,
.step-item,
.faq-grid article,
.calculator,
.support-band {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.product-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  min-height: 430px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--green-dark);
  font-size: 0.82rem;
  font-weight: 800;
}

.product-card h3 {
  margin: 16px 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.02;
}

.product-card p,
.feature-grid p,
.example-card p,
.kit-card p,
.step-item p,
footer p {
  color: var(--muted-ink);
}

.price-row {
  display: flex;
  align-items: end;
  gap: 10px;
}

.price {
  font-size: 4rem;
  font-weight: 900;
  line-height: 0.9;
}

.price-note {
  color: var(--muted-ink);
  font-weight: 800;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article {
  padding: 24px;
}

.feature-grid h3,
.step-item h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.feature-grid p,
.step-item p {
  margin: 0;
}

.examples-section {
  padding-top: 0;
}

.examples-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 18px;
}

.example-card {
  display: grid;
  gap: 18px;
  overflow: hidden;
}

.example-card.large {
  grid-row: span 2;
}

.example-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}

.example-card div {
  padding: 0 22px 22px;
}

.example-card h3 {
  margin: 0 0 8px;
  font-size: 1.25rem;
}

.example-card p {
  margin: 0;
}

.example-note {
  max-width: 820px;
  margin: 16px 0 0;
  color: var(--muted-ink);
  font-size: 0.94rem;
}

.kits-section {
  padding-top: 0;
}

.kits-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.kit-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 290px;
  padding: 24px;
}

.kit-card.available {
  border-color: rgba(47, 117, 107, 0.44);
  box-shadow: var(--shadow);
}

.kit-card h3 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.08;
}

.kit-card p {
  margin: 0;
}

.kit-card .button {
  margin-top: auto;
}

.muted {
  background: #eef4ef;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.step-item {
  padding: 24px;
}

.step-item span {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--coral);
  font-weight: 900;
}

.step-item.active {
  border-color: rgba(47, 117, 107, 0.44);
  background: #f9fcfa;
  box-shadow: var(--shadow);
}

.calculator-section {
  background: #fbfaf6;
}

.calculator {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  align-items: end;
  padding: 22px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted-ink);
  font-weight: 800;
}

input[type="text"] {
  width: 100%;
  min-height: 48px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-weight: 800;
}

.result-panel {
  min-height: 108px;
  padding: 18px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

.result-panel span,
.result-panel small {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}

.result-panel strong {
  display: block;
  margin: 4px 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
}

.faq-section {
  padding-top: 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.faq-grid article {
  padding: 24px;
}

.faq-grid h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.faq-grid p {
  margin: 0;
  color: var(--muted-ink);
}

.support-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
  padding: 24px;
  background: #f8fcfa;
}

.support-band h3 {
  margin: 0 0 6px;
  font-size: 1.25rem;
}

.support-band p {
  margin: 0;
  color: var(--muted-ink);
}

footer {
  padding: 30px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  background: var(--white);
}

footer p {
  margin: 0;
}

@media (max-width: 960px) {
  .hero,
  .product-layout,
  .calculator {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    max-width: 12ch;
  }

  .hero-media img {
    margin: 0;
  }

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

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

  .example-card.large {
    grid-row: auto;
  }

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

@media (max-width: 720px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

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

  .metrics-strip,
  .feature-grid,
  .kits-grid,
  .step-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .metrics-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metrics-strip div:last-child {
    border-bottom: 0;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .support-band {
    align-items: stretch;
    flex-direction: column;
  }
}