:root {
  color-scheme: light;
  --ink: #17201a;
  --muted: #5d6b61;
  --line: #dfe7dc;
  --paper: #f7faf4;
  --panel: #ffffff;
  --green: #177245;
  --teal: #0d6b78;
  --gold: #d89a24;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
a { color: inherit; }
.site-header {
  min-height: 76px;
  padding: 14px clamp(18px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 250, 244, 0.96);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  text-decoration: none;
}
.brand img {
  border-radius: 8px;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-weight: 650;
  font-size: 0.95rem;
}
nav a { text-decoration: none; }
.hero {
  width: 100%;
  min-height: auto;
  padding: clamp(44px, 7vw, 86px) clamp(18px, 6vw, 88px) clamp(32px, 5vw, 58px);
  background:
    linear-gradient(180deg, #fbfff8 0%, #eef6ed 100%);
  text-align: center;
}
.hero-copy {
  width: min(920px, 100%);
  margin: 0 auto;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.78rem;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3, .brand {
  font-family: Georgia, "Times New Roman", serif;
}
h1 {
  max-width: 900px;
  margin-inline: auto;
  font-size: clamp(2.45rem, 6vw, 5.2rem);
  line-height: 1;
  letter-spacing: 0;
  margin-bottom: 22px;
}
.lead {
  max-width: 760px;
  margin-inline: auto;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.65;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 8px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 800;
}
.primary {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}
.secondary { background: #fff; }
.phone-frame {
  width: min(74vw, 280px);
  margin: clamp(28px, 5vw, 46px) auto 0;
  aspect-ratio: 9 / 16;
  border-radius: 22px;
  border: 8px solid #1e2b24;
  overflow: hidden;
  box-shadow: 0 18px 42px rgba(18, 46, 33, 0.2);
  background: #111;
}
.phone-frame img,
.shot-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
section {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(42px, 7vw, 82px) 0;
}
.details-band, .install-band, .final-cta {
  background: var(--panel);
  border-block: 1px solid var(--line);
}
.section-heading {
  max-width: 780px;
}
h2 {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.06;
  letter-spacing: 0;
  margin-bottom: 24px;
}
.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.fact-grid div {
  min-width: 0;
  padding: 18px;
  background: #fff;
}
dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}
dd {
  margin: 7px 0 0;
  font-weight: 800;
  overflow-wrap: anywhere;
}
.about-band {
  display: block;
}
.about-band p {
  color: var(--muted);
  line-height: 1.75;
  max-width: 760px;
}
.mini-panel {
  max-width: 760px;
  margin-top: 24px;
  display: grid;
  align-content: start;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
}
.mini-panel strong {
  color: var(--green);
  font-size: 1.1rem;
}
.mini-panel span {
  padding: 11px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-weight: 700;
}
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  max-width: 820px;
}
.feature-grid h2 {
  grid-column: auto;
}
article {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
article h3 { color: var(--green); }
.highlight-band,
.readiness-band,
.comparison-band {
  background: transparent;
  border-block: 1px solid var(--line);
}
.highlight-grid,
.readiness-grid,
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  max-width: 820px;
}
.readiness-grid article {
  padding: 24px;
}
.readiness-grid ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.65;
}
.readiness-grid li + li {
  margin-top: 10px;
}
.version-band {
  display: block;
  background: #17201a;
  color: #fff;
  width: 100%;
  padding-inline: max(18px, calc((100% - 1040px) / 2));
}
.version-band .eyebrow {
  color: #9bd8bd;
}
.version-list {
  display: grid;
  max-width: 820px;
  gap: 10px;
}
.version-list div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.version-list span {
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.55;
}
.install-band {
  display: block;
}
ol {
  max-width: 780px;
  margin: 0;
  padding-left: 24px;
  line-height: 1.8;
  color: var(--muted);
}
.shot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  max-width: 780px;
}
.shot-grid img {
  aspect-ratio: 9 / 16;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
}
.faq {
  background: transparent;
  max-width: 820px;
}
details {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}
summary {
  cursor: pointer;
  font-weight: 800;
}
details p {
  color: var(--muted);
  line-height: 1.65;
  margin: 12px 0 0;
}
.final-cta {
  width: min(820px, calc(100% - 32px));
  text-align: center;
}
.final-cta p {
  max-width: 680px;
  margin: 0 auto 24px;
  color: var(--muted);
  line-height: 1.6;
}
footer {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
  color: var(--muted);
}
@media (max-width: 860px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .hero,
  .install-band,
  .about-band,
  .version-band {
    grid-template-columns: 1fr;
  }
  .phone-frame {
    width: min(76vw, 320px);
  }
  .fact-grid,
  .feature-grid,
  .shot-grid,
  .highlight-grid,
  .readiness-grid,
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  .version-list div {
    grid-template-columns: 1fr;
  }
}