:root {
  color-scheme: light;
  --ink: #171b22;
  --muted: #5f6875;
  --line: #d9e1e8;
  --paper: #f5f8fa;
  --white: #ffffff;
  --brand: #126f83;
  --accent: #74a934;
  --deep: #202938;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
  padding: 12px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid rgba(217, 225, 232, 0.85);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--deep);
  font-weight: 900;
  white-space: nowrap;
}

.brand-logo {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 1px rgba(18, 111, 131, 0.22);
}

.site-nav {
  display: flex;
  gap: clamp(18px, 3vw, 34px);
  color: var(--muted);
  font-size: 15px;
  font-weight: 750;
}

.site-nav a:hover {
  color: var(--brand);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: center;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(46px, 6vw, 86px) 0 clamp(54px, 8vw, 96px);
}

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

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  color: var(--deep);
  font-size: clamp(44px, 7vw, 82px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  color: var(--deep);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.14;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  color: var(--deep);
  font-size: 20px;
  line-height: 1.25;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 850;
}

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

.button.secondary {
  color: var(--deep);
  background: var(--white);
}

.hero-specs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 660px;
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-specs div {
  padding: 18px 18px 18px 0;
}

.hero-specs div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.hero-specs dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.hero-specs dd {
  margin: 0;
  color: var(--deep);
  font-size: 22px;
  font-weight: 900;
}

.hero-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 1.28;
  padding: clamp(18px, 4vw, 38px);
  object-fit: contain;
}

.section,
.split-section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(58px, 9vw, 98px) 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-heading p,
.feature-grid p,
.split-section p,
.quality-panel p,
.guide-grid p {
  color: var(--muted);
}

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

.feature-grid article {
  min-height: 220px;
  padding: 26px;
  background: var(--white);
}

.feature-grid span {
  display: block;
  margin-bottom: 34px;
  color: var(--accent);
  font-weight: 900;
}

.split-section {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(30px, 6vw, 76px);
  align-items: center;
}

.split-section figure,
.quality-panel figure {
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
}

.split-section img,
.quality-panel img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--deep);
  font-weight: 750;
}

.quality-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quality-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.quality-panel > * {
  background: var(--paper);
}

.quality-panel div {
  padding: clamp(28px, 5vw, 48px);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.guide-grid p {
  min-height: 130px;
  margin: 0;
  padding: 24px;
  background: var(--white);
}

.contact-section {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 6vw, 72px);
  align-items: end;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto clamp(44px, 7vw, 76px);
  padding: clamp(36px, 6vw, 58px);
  border-radius: 8px;
  background: var(--deep);
  color: var(--white);
}

.contact-section .eyebrow {
  color: #9cd64f;
}

.contact-section h2 {
  color: var(--white);
}

.contact-section p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

address {
  display: grid;
  gap: 8px;
  font-style: normal;
  text-align: right;
}

address strong {
  font-size: 24px;
}

address span {
  color: rgba(255, 255, 255, 0.78);
}

address a {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.12;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 24px;
  padding: 24px 20px 36px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 13px;
}

@media (max-width: 900px) {
  .site-header {
    position: static;
  }

  .hero,
  .split-section,
  .quality-panel,
  .contact-section {
    grid-template-columns: 1fr;
  }

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

  address {
    text-align: left;
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    gap: 16px;
    flex-direction: column;
    width: 100%;
    overflow: hidden;
  }

  .brand {
    max-width: 100%;
    font-size: 14px;
    white-space: normal;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .site-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: 340px;
    max-width: 100%;
    gap: 0;
    font-size: 13px;
  }

  .site-nav a {
    text-align: center;
  }

  .hero,
  .section,
  .split-section,
  .contact-section {
    width: calc(100% - 40px);
    max-width: var(--max);
  }

  h1 {
    width: 320px;
    max-width: 100%;
    font-size: 32px;
    line-height: 1.08;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .hero-lead {
    width: 320px;
    max-width: 100%;
    font-size: 17px;
    word-break: keep-all;
    overflow-wrap: anywhere;
  }

  .hero-specs,
  .feature-grid,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .hero-specs div + div {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .feature-grid article,
  .guide-grid p {
    min-height: 0;
  }

  .contact-section {
    padding: 28px;
  }
}