:root {
  color-scheme: dark;
  font-family: 'Segoe UI', system-ui, sans-serif;
  color: #f2f6f4;
  background: #111819;
  --ink: #f2f6f4;
  --muted: #b1c1bf;
  --mint: #aaf3d8;
  --line: #344746;
  --panel: #1a2627;
  --shell: 73rem;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
p, figure { margin: 0; }
h1, h2, h3 { margin: 0; letter-spacing: -.042em; }
em { font-style: normal; }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 4px; }
.shell { width: min(var(--shell), 100% - 5rem); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 5;
  transform: translateY(-150%);
  padding: .8rem 1rem;
  color: #111819;
  background: var(--mint);
  border-radius: .5rem;
}
.skip-link:focus { transform: none; }

.site-header { border-bottom: 1px solid #2b3a39; }
.header-inner, .navigation, .brand { display: flex; align-items: center; }
.header-inner { justify-content: space-between; min-height: 5rem; gap: 1rem; }
.brand { width: fit-content; gap: .68rem; font-size: 1.3rem; font-weight: 730; letter-spacing: -.06em; }
.brand img { flex: none; border: 1px solid #465250; border-radius: .65rem; }
.navigation { gap: 1.45rem; font-size: .91rem; }
.nav-link { color: var(--muted); font-weight: 600; padding: .75rem 0; }
.nav-link:hover, .footer-links a:hover { color: var(--ink); text-decoration: underline; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  width: fit-content;
  min-height: 3.1rem;
  padding: .65rem 1.12rem;
  border: 1px solid transparent;
  border-radius: .68rem;
  color: #102521;
  background: var(--mint);
  font-weight: 720;
  transition: background-color .18s, border-color .18s;
}
.button:hover { background: #d3ffed; }
.button--small { min-height: 2.72rem; padding: .52rem .85rem; }
.button--quiet, .button--outline { color: var(--ink); border-color: var(--line); background: transparent; }
.button--quiet:hover, .button--outline:hover { background: #263738; border-color: #60817b; }

.hero {
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  align-items: center;
  gap: clamp(1.25rem, 4vw, 4rem);
  padding-block: 4.1rem 5.1rem;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--mint);
  font-size: .76rem;
  font-weight: 720;
  letter-spacing: .14em;
  line-height: 1.35;
  text-transform: uppercase;
}
.signal { display: block; width: 1.25rem; height: 1px; flex: none; background: currentColor; }
.hero h1 {
  margin-block: 1.1rem 1.2rem;
  font-size: clamp(3rem, 5.65vw, 5.45rem);
  font-weight: 740;
  letter-spacing: -.075em;
  line-height: 1.02;
}
.hero h1 em { color: var(--mint); }
.hero-description { max-width: 29rem; color: var(--muted); font-size: clamp(1.05rem, 1.45vw, 1.25rem); line-height: 1.6; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; margin-top: 1.8rem; }
.hero-note { display: flex; align-items: center; gap: .57rem; margin-top: 1.18rem; color: var(--muted); font-size: .86rem; }
.status-dot { width: .46rem; height: .46rem; flex: none; border-radius: 50%; background: var(--mint); }

.preview {
  position: relative;
  isolation: isolate;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 32rem;
  overflow: hidden;
  border: 1px solid #304845;
  border-radius: 1.9rem;
  background: radial-gradient(ellipse at 53% 45%, #396459 0%, #233c38 40%, #182628 78%);
}
.preview-grid {
  position: absolute;
  inset: 0;
  opacity: .65;
  background-image: linear-gradient(#aaf3d816 1px, transparent 1px), linear-gradient(90deg, #aaf3d816 1px, transparent 1px);
  background-size: 1.8rem 1.8rem;
  mask-image: radial-gradient(ellipse, black 25%, transparent 77%);
}
.phone {
  position: relative;
  width: 14rem;
  margin: 0 0 1.5rem 1.3rem;
  padding: .33rem;
  transform: rotate(8deg);
  border: 1px solid #81928e;
  border-radius: 1.85rem;
  background: linear-gradient(130deg, #6a8079, #172222 46%, #566963 78%);
  box-shadow: 1.25rem 2rem 4rem #060e0dbe;
}
.phone-screen { position: relative; overflow: hidden; padding: .68rem; border-radius: 1.51rem; background: #101918; }
.phone-status { position: relative; display: flex; align-items: center; justify-content: space-between; height: .9rem; padding-inline: .3rem; color: #d4e1df; font-size: .52rem; font-weight: 650; }
.phone-speaker { position: absolute; left: 50%; top: 0; width: 2.8rem; height: .64rem; transform: translateX(-50%); border-radius: 1rem; background: #030706; }
.phone-battery { position: relative; width: .9rem; height: .4rem; border: 1px solid #c8d4d1; border-radius: .14rem; }
.phone-battery::after { position: absolute; inset: 1px; background: #c8d4d1; content: ''; }
.phone-heading { display: flex; align-items: center; gap: .37rem; margin-block: .62rem .65rem; }
.phone-heading img { border-radius: .35rem; }
.phone-heading strong { font-size: .85rem; }
.phone-heading > span { margin-left: auto; padding: .21rem .41rem; border-radius: .3rem; color: var(--mint); background: #203731; font-size: .55rem; }
.scan-image { position: relative; height: 11.2rem; overflow: hidden; border: 1px solid #8cb3a980; border-radius: .65rem; background: #4f6265; }
.scan-image img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 42%; }
.scan-frame { position: absolute; inset: .68rem 1.28rem 1.48rem; border: 1px solid #e0fffaba; border-radius: .54rem; }
.scan-frame::after { position: absolute; top: 55%; left: 0; right: 0; height: 1px; background: #b7ffe8; box-shadow: 0 0 10px 2px #63ffd5ad; content: ''; }
.scan-image-label { position: absolute; bottom: .42rem; left: .48rem; padding: .24rem .38rem; border: 1px solid #6c928b; border-radius: .25rem; color: #e7fbf6; background: #192b2d; font-size: .55rem; }
.phone-report { margin-top: .65rem; }
.phone-report > strong { display: block; margin-bottom: .43rem; color: var(--ink); font-size: .8rem; letter-spacing: -.02em; }
.report-row { display: flex; align-items: center; gap: .4rem; min-height: 1.85rem; margin-top: .27rem; padding: .3rem .39rem; border: 1px solid #2b4140; border-radius: .34rem; color: #dae8e4; background: #192625; font-size: .59rem; font-weight: 620; }
.report-row i { width: .39rem; height: .39rem; border: 1px solid var(--mint); border-radius: 50%; }
.report-row b { margin-left: auto; color: var(--mint); font-size: .7rem; }
.phone-home { width: 3.3rem; height: .19rem; margin: .62rem auto 0; border-radius: 1rem; background: #e6f4f088; }
.preview-caption {
  position: absolute;
  left: 1.22rem;
  bottom: 1.22rem;
  display: flex;
  align-items: center;
  gap: .68rem;
  padding: .65rem .85rem;
  border: 1px solid #516b65;
  border-radius: .74rem;
  background: #142020;
  box-shadow: 0 .7rem 2rem #0b141573;
}
.caption-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: .42rem; color: var(--mint); background: #253f37; }
.preview-caption strong, .preview-caption small { display: block; }
.preview-caption strong { font-size: .81rem; }
.preview-caption small { margin-top: .17rem; color: var(--muted); font-size: .69rem; }

.section { padding-block: 4.8rem; scroll-margin-top: 1rem; }
.details { border-block: 1px solid #2b3a39; background: #172022; }
.section-heading { margin-bottom: 2rem; }
.section-heading h2, .test-panel h2 { margin-top: .62rem; font-size: clamp(2.05rem, 4.25vw, 3.35rem); line-height: 1.12; }
.section-heading > p:last-child { margin-top: .72rem; color: var(--muted); line-height: 1.62; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--line); }
.feature { padding: 1.65rem 1.7rem 1.7rem 0; }
.feature + .feature { padding-left: 1.7rem; border-left: 1px solid var(--line); }
.feature-number { display: grid; place-items: center; width: 2.2rem; height: 2.2rem; margin-bottom: .92rem; border: 1px solid #41635b; border-radius: .54rem; color: var(--mint); background: #213732; font-size: .75rem; font-variant-numeric: tabular-nums; }
.feature h3, .plan h3 { font-size: 1.31rem; line-height: 1.28; }
.feature p, .details-extra, .plan > p:last-child, .test-panel p:not(.eyebrow) { color: var(--muted); line-height: 1.6; }
.feature p { margin-top: .55rem; }
.details-extra { margin-top: 1.1rem; font-size: .91rem; }
.details-extra strong { margin-right: .38rem; color: var(--ink); }

.pricing { padding-bottom: 3.7rem; }
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.plan { padding: 1.6rem 1.8rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); }
.plan--monthly { border-color: #52766a; background: #1e302d; }
.price { display: flex; flex-wrap: wrap; align-items: baseline; gap: .46rem; margin-block: .45rem; }
.price strong { color: var(--mint); font-size: clamp(2rem, 4.1vw, 3.3rem); line-height: 1.15; letter-spacing: -.065em; }
.price span { color: var(--muted); }
.plan > p:last-child { font-size: .9rem; }

.test-section { padding-bottom: 4.75rem; scroll-margin-top: 1rem; }
.test-panel { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: clamp(1.25rem, 3.1vw, 2.25rem); border: 1px solid var(--line); border-radius: 1rem; background: #182425; }
.test-panel h2 { font-size: clamp(1.5rem, 3.3vw, 2.3rem); }
.test-panel p:not(.eyebrow) { max-width: 37rem; margin-top: .65rem; }
.test-panel .button { flex: none; }

.site-footer { border-top: 1px solid #2b3a39; background: #0d1415; }
.footer-inner { display: grid; grid-template-columns: 1.2fr .65fr 1fr; gap: 1.5rem; padding-block: 2.65rem 3.2rem; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: .62rem; font-size: .91rem; }
.footer-links a { color: var(--muted); overflow-wrap: anywhere; }

@media (max-width: 55rem) {
  .shell { width: min(var(--shell), 100% - 3rem); }
  .hero { padding-block: 3.25rem; }
  .preview { min-height: 28.5rem; }
  .phone { width: 12.9rem; }
  .section { padding-block: 3.4rem; }
}

@media (max-width: 43rem) {
  .shell { width: calc(100% - 2rem); }
  .header-inner { min-height: 4.3rem; }
  .navigation { gap: .85rem; }
  .hero { grid-template-columns: minmax(0, 1fr); gap: 2rem; padding-block: 2.75rem 3.3rem; }
  .hero h1 { font-size: clamp(3.05rem, 10.65vw, 4.5rem); }
  .preview { min-height: 27rem; }
  .features { grid-template-columns: minmax(0, 1fr); }
  .feature, .feature + .feature { padding: 1.15rem 0; border-left: none; }
  .feature + .feature { border-top: 1px solid var(--line); }
  .feature-number { margin-bottom: .62rem; }
  .test-panel { align-items: flex-start; flex-direction: column; }
  .test-section { padding-bottom: 3.3rem; }
  .footer-inner { grid-template-columns: .75fr 1.25fr; }
  .footer-inner > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 27rem) {
  .navigation .nav-link:first-child { display: none; }
  .header-inner .brand { gap: .46rem; font-size: 1.16rem; }
  .header-inner .brand img { width: 2rem; height: 2rem; }
  .navigation .button--small { gap: .35rem; padding-inline: .64rem; font-size: .84rem; }
  .preview-caption { bottom: .83rem; left: .83rem; }
  .plans { gap: .7rem; }
  .plan { padding: 1rem .86rem; }
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .button { transition: none; }
}