:root {
  --ink: #17211a;
  --muted: #62706a;
  --forest: #0f5132;
  --forest-dark: #093522;
  --mint: #dff3e5;
  --sky: #d7e8f7;
  --paper: #f7f5ef;
  --white: #ffffff;
  --line: rgba(23, 33, 26, 0.14);
  --shadow: 0 24px 80px rgba(15, 81, 50, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 54px);
  background: rgba(247, 245, 239, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--white);
  background: var(--forest);
  border-radius: 8px;
  font-weight: 900;
}

.nav {
  display: flex;
  justify-content: center;
  gap: clamp(14px, 3vw, 34px);
  color: var(--muted);
  font-size: 0.94rem;
}

.nav a,
.site-footer a {
  text-decoration: none;
}

.nav a:hover,
.site-footer a:hover {
  color: var(--forest);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 750;
  white-space: nowrap;
}

.header-cta,
.button.primary {
  color: var(--white);
  background: var(--forest);
}

.button.secondary {
  color: var(--forest-dark);
  background: var(--mint);
}

.section-band {
  padding: clamp(58px, 8vw, 112px) clamp(18px, 5vw, 72px);
}

.section-band.light {
  background: var(--white);
}

.section-band.dark {
  color: var(--white);
  background: var(--forest-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.88fr);
  align-items: center;
  gap: clamp(32px, 7vw, 92px);
  min-height: calc(100vh - 72px);
  padding-top: clamp(44px, 6vw, 86px);
  padding-bottom: clamp(46px, 6vw, 84px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--forest);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dark .eyebrow {
  color: #9fe0b8;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(3.5rem, 8.4vw, 7.6rem);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 5vw, 4.7rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.16rem;
}

.hero-lede,
.section-heading p,
.comparison-copy p,
.support p {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
}

.dark .comparison-copy p {
  color: rgba(255, 255, 255, 0.75);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 700px;
}

.trust-row span {
  padding: 9px 12px;
  color: var(--forest-dark);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.9rem;
}

.hero-product {
  display: grid;
  gap: 18px;
}

.seat-visual {
  position: relative;
  min-height: 470px;
  padding: 58px 34px 34px;
  background:
    radial-gradient(circle at 20% 14%, rgba(223, 243, 229, 0.95), transparent 34%),
    linear-gradient(145deg, #ffffff, #d7e8f7);
  border: 1px solid rgba(23, 33, 26, 0.1);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.seat-back,
.seat-base {
  position: relative;
  width: min(82%, 390px);
  margin: 0 auto;
  background: #25352c;
  border: 10px solid #111a15;
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.12);
}

.seat-back {
  height: 245px;
  border-radius: 20px 20px 10px 10px;
  transform: perspective(900px) rotateX(8deg);
}

.seat-base {
  height: 155px;
  margin-top: -18px;
  border-radius: 12px 12px 28px 28px;
}

.seat-back span,
.seat-base span {
  position: absolute;
  inset: 20px auto 20px;
  width: 22%;
  background: linear-gradient(180deg, #3f5748, #1c2c23);
  border-radius: 14px;
}

.seat-back span:nth-child(1),
.seat-base span:nth-child(1) { left: 8%; }
.seat-back span:nth-child(2),
.seat-base span:nth-child(2) { left: 39%; }
.seat-back span:nth-child(3),
.seat-base span:nth-child(3) { right: 8%; }

.seat-arm {
  position: absolute;
  top: 286px;
  width: 58px;
  height: 170px;
  background: #111a15;
  border-radius: 18px;
}

.seat-arm.left { left: 11%; }
.seat-arm.right { right: 11%; }

.seat-pocket {
  position: absolute;
  right: 18%;
  bottom: 48px;
  width: 74px;
  height: 52px;
  background: #9cdbc0;
  border: 7px solid #111a15;
  border-radius: 12px;
}

.product-note {
  display: grid;
  gap: 5px;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.product-note span {
  color: var(--muted);
}

.section-heading {
  margin-bottom: 34px;
}

.section-heading.narrow {
  max-width: 760px;
}

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

.comfort-grid article,
.feature-item,
.support-card {
  padding: clamp(20px, 3vw, 30px);
  background: #f9faf7;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.comfort-grid p,
.feature-item p,
.steps span {
  color: var(--muted);
}

.number {
  display: block;
  margin-bottom: 30px;
  color: var(--forest);
  font-weight: 850;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.feature-item {
  border: 0;
  border-radius: 0;
  background: var(--white);
}

.comparison {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1fr);
  gap: clamp(28px, 5vw, 68px);
  align-items: center;
}

.comparison-table {
  display: grid;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.comparison-table [role="row"] {
  display: grid;
  grid-template-columns: 0.85fr 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.comparison-table span {
  padding: 16px;
  background: rgba(255, 255, 255, 0.07);
}

.comparison-table .table-head span {
  color: #c8f0d7;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.12);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.steps div {
  display: grid;
  gap: 10px;
  min-height: 150px;
  padding: 24px;
  background: #f9faf7;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps strong {
  color: var(--forest-dark);
  font-size: 1.2rem;
}

.support {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.5fr);
  gap: 28px;
  align-items: start;
}

.support-card {
  display: grid;
  gap: 14px;
  background: var(--white);
}

.support-card span {
  color: var(--muted);
  font-size: 0.9rem;
}

.support-card a:not(.button) {
  color: var(--forest);
  font-size: 1.1rem;
  font-weight: 800;
  word-break: break-word;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: var(--white);
  border-top: 1px solid var(--line);
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

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

  .hero {
    min-height: 0;
  }

  .comfort-grid,
  .feature-list,
  .steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .site-header {
    min-height: 64px;
    gap: 12px;
  }

  .brand {
    font-size: 0.95rem;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 12px;
    font-size: 0.88rem;
  }

  .section-band {
    padding: 46px 18px;
  }

  h1 {
    font-size: 3.35rem;
  }

  .hero-actions {
    display: grid;
  }

  .seat-visual {
    min-height: 390px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .seat-back,
  .seat-base {
    width: 82%;
  }

  .seat-arm {
    top: 250px;
    width: 44px;
  }

  .seat-arm.left { left: 8%; }
  .seat-arm.right { right: 8%; }

  .comfort-grid,
  .feature-list,
  .steps {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    overflow-x: auto;
  }

  .comparison-table [role="row"] {
    min-width: 620px;
  }

  .site-footer {
    flex-direction: column;
  }
}