:root {
  --bg: #071412;
  --bg-elevated: #0d211e;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --text: #ecfdf5;
  --text-muted: #9fb8b0;
  --accent: #2dd4bf;
  --accent-strong: #14b8a6;
  --accent-soft: rgba(45, 212, 191, 0.14);
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 20px;
  --radius-sm: 12px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

.container {
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}

.bg-glow {
  position: fixed;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
  z-index: -1;
}

.bg-glow--left {
  top: -120px;
  left: -160px;
  background: #115e59;
}

.bg-glow--right {
  right: -120px;
  bottom: 10%;
  background: #0f766e;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(7, 20, 18, 0.72);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-soft);
  font-size: 1.1rem;
}

.logo__text {
  font-size: 1.15rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--small {
  padding: 10px 16px;
  font-size: 0.92rem;
  background: var(--surface-strong);
  border: 1px solid var(--border);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #042f2e;
  box-shadow: 0 12px 32px rgba(20, 184, 166, 0.28);
}

.btn--ghost {
  border: 1px solid var(--border);
  background: transparent;
}

.btn--large {
  padding: 16px 28px;
  font-size: 1.05rem;
}

.hero {
  padding: 72px 0 48px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  max-width: 11ch;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.lead {
  margin: 20px 0 0;
  max-width: 52ch;
  color: var(--text-muted);
  font-size: 1.08rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.hero__meta li::before {
  content: "•";
  margin-right: 10px;
  color: var(--accent);
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.phone {
  width: min(100%, 320px);
  padding: 14px;
  border-radius: 34px;
  background: linear-gradient(180deg, #12332f, #0a1d1a);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.phone__screen {
  overflow: hidden;
  border-radius: 24px;
  background: #0f2926;
  min-height: 420px;
  position: relative;
}

.phone__map {
  height: 300px;
  background:
    radial-gradient(circle at 30% 35%, rgba(45, 212, 191, 0.18), transparent 34%),
    radial-gradient(circle at 70% 60%, rgba(20, 184, 166, 0.12), transparent 30%),
    linear-gradient(180deg, #123c37, #0d2623);
  position: relative;
}

.phone__pin {
  position: absolute;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(7, 20, 18, 0.82);
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.phone__pin--you {
  top: 42%;
  left: 34%;
  background: rgba(45, 212, 191, 0.18);
  color: var(--accent);
}

.phone__pin--friend {
  top: 28%;
  right: 18%;
}

.phone__pin--far {
  bottom: 24%;
  left: 18%;
}

.phone__card {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
}

.phone__avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 800;
}

.phone__card strong {
  display: block;
}

.phone__card span {
  color: var(--text-muted);
  font-size: 0.86rem;
}

.section-head {
  max-width: 640px;
  margin-bottom: 32px;
}

.section-head p {
  margin: 12px 0 0;
  color: var(--text-muted);
}

.features {
  padding: 40px 0 24px;
}

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

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

.feature-card__icon {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.steps {
  padding: 40px 0;
}

.steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.steps__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}

.steps__num {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 800;
}

.steps__list h3 {
  margin-bottom: 6px;
}

.steps__list p {
  margin: 0;
  color: var(--text-muted);
}

.download {
  padding: 24px 0 72px;
}

.download__card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
  padding: 32px;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.12), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(45, 212, 191, 0.22);
  box-shadow: var(--shadow);
}

.download__card p {
  color: var(--text-muted);
}

.download__version {
  margin-top: 16px;
  color: var(--text);
  font-weight: 600;
}

.download__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.download__hint {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.download__hint code {
  padding: 2px 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0 36px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.94rem;
}

@media (max-width: 900px) {
  .hero__grid,
  .features__grid,
  .download__card {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  h1 {
    max-width: none;
  }

  .features__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .features__grid {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .download__actions .btn {
    width: 100%;
  }
}