:root {
  --bg: #fbfbf8;
  --surface: #ffffff;
  --ink: #161812;
  --muted: #656960;
  --line: #dcdfd8;
  --green: #2f6f4e;
  --green-dark: #1e4f38;
  --amber: #d9a441;
  --blue: #446fa3;
  --shadow: 0 22px 60px rgba(22, 24, 18, 0.12);
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(47, 111, 78, 0.08), rgba(47, 111, 78, 0) 360px),
    var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--green-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(220, 223, 216, 0.84);
  background: rgba(251, 251, 248, 0.9);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 740;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  box-shadow: 0 7px 18px rgba(22, 24, 18, 0.16);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 640;
}

.nav-links a {
  color: inherit;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ink);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--green-dark);
  border-radius: 999px;
  background: var(--green-dark);
  color: #fff;
  font-size: 14px;
  font-weight: 760;
  text-decoration: none;
  box-shadow: 0 12px 24px rgba(30, 79, 56, 0.18);
}

.button:hover,
.button:focus-visible {
  background: #173f2d;
}

.button.secondary {
  border-color: var(--line);
  background: var(--surface);
  color: var(--ink);
  box-shadow: none;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 86px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.86fr);
  gap: 64px;
  align-items: center;
  padding-top: 76px;
  padding-bottom: 72px;
}

.hero-copy {
  max-width: 680px;
}

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

h1 {
  margin-bottom: 22px;
  max-width: 760px;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.98;
  font-weight: 810;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
  line-height: 1.2;
  font-weight: 760;
}

.lead {
  max-width: 650px;
  color: #3f433c;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.42;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-note {
  margin-top: 22px;
  color: var(--muted);
  font-size: 14px;
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.phone-frame {
  position: absolute;
  inset: 0 28px 0 auto;
  width: min(360px, 88vw);
  border: 1px solid rgba(22, 24, 18, 0.18);
  border-radius: 46px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0)),
    #10130f;
  box-shadow: var(--shadow);
  padding: 14px;
}

.camera-preview {
  position: relative;
  height: 100%;
  min-height: 492px;
  overflow: hidden;
  border-radius: 34px;
  background:
    linear-gradient(130deg, rgba(47, 111, 78, 0.25), rgba(68, 111, 163, 0.16)),
    radial-gradient(circle at 68% 30%, rgba(217, 164, 65, 0.34), transparent 22%),
    linear-gradient(160deg, #dfe8df 0%, #8fae9e 42%, #314236 43%, #182018 100%);
}

.horizon {
  position: absolute;
  right: -30%;
  bottom: 18%;
  width: 140%;
  height: 42%;
  transform: rotate(-7deg);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0)),
    linear-gradient(180deg, #4f745d, #213022);
}

.detail-window {
  position: absolute;
  top: 29%;
  left: 50%;
  width: 48%;
  aspect-ratio: 4 / 3;
  transform: translateX(-50%);
  border: 2px solid rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0)),
    linear-gradient(160deg, #cbd9d0, #416f55 45%, #182519 46%, #0f1711);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.app-icon-card {
  position: absolute;
  left: 0;
  bottom: 34px;
  width: 148px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 24px 50px rgba(22, 24, 18, 0.16);
  backdrop-filter: blur(16px);
  padding: 14px;
}

.app-icon-card img {
  border-radius: 22px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 52px;
  align-items: start;
}

.feature-list {
  display: grid;
  gap: 18px;
}

.feature-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.feature-row:last-child {
  border-bottom: 1px solid var(--line);
}

.marker {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: #e6efe9;
  color: var(--green-dark);
  font-size: 15px;
  font-weight: 820;
}

.feature-row p,
.muted {
  margin-bottom: 0;
  color: var(--muted);
}

.privacy-band {
  width: 100%;
  background: #eef4f0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.privacy-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 48px;
  align-items: center;
}

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

.privacy-points li {
  padding: 14px 0;
  border-top: 1px solid rgba(22, 24, 18, 0.12);
  color: #2d332b;
  font-weight: 680;
}

.compatibility {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 36px;
}

.info-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 28px;
}

.info-panel strong {
  color: var(--ink);
}

.page-hero {
  padding-top: 64px;
  padding-bottom: 36px;
}

.page-hero h1 {
  font-size: clamp(42px, 6vw, 72px);
}

.content {
  max-width: 820px;
}

.content h2 {
  margin-top: 44px;
  font-size: 28px;
  line-height: 1.12;
}

.content ul,
.content ol {
  padding-left: 22px;
}

.content li + li {
  margin-top: 8px;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.support-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 24px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #f5f6f1;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (max-width: 880px) {
  .hero,
  .split,
  .privacy-inner,
  .compatibility,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 34px;
    padding-top: 48px;
  }

  .hero-visual {
    min-height: 450px;
  }

  .phone-frame {
    right: 0;
    left: auto;
    width: min(330px, 82vw);
  }

  .app-icon-card {
    width: 124px;
  }
}

@media (max-width: 640px) {
  .nav {
    width: min(100% - 28px, 1120px);
  }

  .nav-links {
    gap: 13px;
    font-size: 13px;
  }

  .nav-links .hide-small {
    display: none;
  }

  .section {
    width: min(100% - 28px, 1120px);
    padding: 58px 0;
  }

  h1 {
    font-size: 48px;
  }

  .lead {
    font-size: 19px;
  }

  .hero-visual {
    min-height: 390px;
  }

  .phone-frame {
    width: min(292px, 82vw);
    border-radius: 38px;
    padding: 12px;
  }

  .camera-preview {
    min-height: 366px;
    border-radius: 28px;
  }

  .app-icon-card {
    bottom: 18px;
    width: 104px;
    border-radius: 22px;
    padding: 10px;
  }

  .app-icon-card img {
    border-radius: 16px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    width: min(100% - 28px, 1120px);
  }
}