:root {
  --ink: #1d2327;
  --muted: #5f6b72;
  --paper: #fbfaf7;
  --surface: #ffffff;
  --line: #dfe6e2;
  --accent: #0f766e;
  --accent-dark: #0b5751;
  --accent-warm: #c75b39;
  --soft: #edf6f3;
  --soft-warm: #fff1ea;
  --shadow: 0 18px 40px rgba(22, 32, 36, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 20;
  padding: 10px 14px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(223, 230, 226, 0.8);
  background: rgba(251, 250, 247, 0.96);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  max-width: 1160px;
  min-height: 72px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  font-size: 14px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  padding: 8px 10px;
  border-radius: 6px;
  color: #344047;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--accent-dark);
  background: var(--soft);
  outline: none;
}

.nav-links .nav-cta {
  color: #fff;
  background: var(--accent);
}

.nav-links .nav-cta:hover,
.nav-links .nav-cta:focus {
  color: #fff;
  background: var(--accent-dark);
}

.hero {
  min-height: 560px;
  display: flex;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(13, 25, 28, 0.78), rgba(13, 25, 28, 0.28)),
    var(--hero-image) var(--hero-position, center) / cover no-repeat;
}

.hero-inner {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 88px 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.hero h1 {
  max-width: 720px;
  margin: 18px 0 16px;
  font-size: 56px;
  line-height: 1.04;
  letter-spacing: 0;
}

.hero p {
  max-width: 610px;
  margin: 0 0 26px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 19px;
}

.button-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

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

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

.button.secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.08);
}

.button.secondary:hover,
.button.secondary:focus {
  background: rgba(255, 255, 255, 0.18);
}

.button.light {
  color: var(--accent-dark);
  background: var(--soft);
}

.button.light:hover,
.button.light:focus {
  color: #fff;
  background: var(--accent);
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 64px 24px;
}

.container.tight {
  max-width: 860px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
  margin-bottom: 28px;
}

.section-heading h2,
.page-title h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.16;
  letter-spacing: 0;
}

.section-heading p,
.page-title p {
  max-width: 680px;
  margin: 10px 0 0;
  color: var(--muted);
}

.kicker {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.feature-strip div {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}

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

.feature-strip strong {
  display: block;
  margin-bottom: 4px;
}

.feature-strip span {
  color: var(--muted);
  font-size: 14px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.article-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 24px rgba(28, 40, 44, 0.06);
}

.article-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--soft);
}

.article-card-body {
  padding: 18px;
}

.meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--soft);
  font-size: 12px;
  font-weight: 800;
}

.article-card h3 {
  margin: 0 0 8px;
  font-size: 21px;
  line-height: 1.25;
}

.article-card p {
  margin: 0 0 16px;
  color: var(--muted);
}

.text-link {
  color: var(--accent-dark);
  font-weight: 800;
  text-decoration: none;
}

.text-link:hover,
.text-link:focus {
  text-decoration: underline;
}

.band {
  background: #fff;
  border-block: 1px solid var(--line);
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 42px;
  align-items: start;
}

.check-list {
  padding-left: 20px;
  margin: 20px 0 0;
}

.check-list li {
  margin-bottom: 10px;
}

.guide-list {
  display: grid;
  gap: 16px;
}

.guide-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.guide-item h3 {
  margin: 0 0 6px;
}

.guide-item p {
  margin: 0;
  color: var(--muted);
}

.page-title {
  max-width: 1160px;
  margin: 0 auto;
  padding: 58px 24px 22px;
}

.page-title.wide {
  padding-bottom: 42px;
}

.review-hero {
  max-width: 1160px;
  margin: 0 auto;
  padding: 30px 24px 0;
}

.review-hero img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.review-layout {
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 24px 72px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 42px;
  align-items: start;
}

.review-sidebar {
  position: sticky;
  top: 96px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.review-sidebar h2 {
  margin: 0 0 12px;
  font-size: 18px;
}

.review-sidebar dl {
  margin: 0;
}

.review-sidebar div {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.review-sidebar dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.review-sidebar dd {
  margin: 3px 0 0;
  font-weight: 800;
}

.review-content {
  min-width: 0;
}

.review-content h2 {
  margin: 38px 0 10px;
  font-size: 28px;
  line-height: 1.22;
}

.review-content h3 {
  margin: 26px 0 8px;
  font-size: 21px;
}

.review-content p,
.review-content li {
  color: #354047;
}

.notice {
  padding: 14px 16px;
  border-left: 4px solid var(--accent-warm);
  border-radius: 6px;
  background: var(--soft-warm);
  color: #46322b;
}

.pros-cons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 22px 0;
}

.pros-cons section {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.pros-cons h3 {
  margin-top: 0;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  background: #fff;
}

.spec-table th,
.spec-table td {
  padding: 12px 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  width: 36%;
  background: var(--soft);
}

.contact-box {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.site-footer {
  color: #dbe7e4;
  background: #162326;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 42px 24px;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 32px;
}

.footer-inner p {
  margin: 8px 0 0;
  color: #abc0bd;
}

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

.footer-links h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 15px;
}

.footer-links a {
  display: block;
  margin: 6px 0;
  color: #dbe7e4;
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus {
  text-decoration: underline;
}

@media (max-width: 860px) {
  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 14px;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero {
    min-height: 490px;
    --hero-position: 42% center;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero p {
    font-size: 17px;
  }

  .feature-strip,
  .card-grid,
  .two-col,
  .pros-cons,
  .footer-inner,
  .footer-links,
  .review-layout {
    grid-template-columns: 1fr;
  }

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

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

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .review-sidebar {
    position: static;
  }
}

@media (max-width: 520px) {
  .container,
  .hero-inner,
  .page-title,
  .review-hero,
  .review-layout,
  .nav-wrap,
  .footer-inner {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero {
    min-height: 450px;
  }

  .hero h1,
  .section-heading h2,
  .page-title h1 {
    font-size: 32px;
  }

  .button {
    width: 100%;
  }
}