:root {
  color-scheme: dark;
  --background: #08101d;
  --surface: #111c2d;
  --surface-light: #18263b;
  --text: #f3f7ff;
  --muted: #aab7ca;
  --primary: #43d5ce;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 85% 10%, rgba(67, 213, 206, 0.13), transparent 30rem),
    radial-gradient(circle at 15% 15%, rgba(143, 98, 255, 0.11), transparent 27rem),
    var(--background);
  color: var(--text);
  font-family: Inter, "Segoe UI", Tahoma, Arial, sans-serif;
  line-height: 1.7;
}

a {
  color: var(--primary);
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.hero {
  min-height: 100vh;
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 1.12rem;
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  border-radius: 10px;
}

.languages {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 20px;
}

.languages a {
  color: var(--muted);
  text-decoration: none;
}

.languages a:hover,
.footer a:hover {
  color: var(--text);
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: 56px;
  padding-block: 80px 110px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(2.5rem, 6vw, 4.9rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: -0.025em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.12rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-block: 30px 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.primary {
  background: linear-gradient(135deg, var(--primary), #62e5c1);
  color: #061019;
  box-shadow: 0 12px 36px rgba(67, 213, 206, 0.2);
}

.secondary {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.requirements {
  color: #8492a7;
  font-size: 0.9rem;
}

.hero-image {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: var(--shadow);
}

.hero-image img {
  display: block;
  width: 100%;
  border-radius: 12px;
}

.features,
.content-section {
  padding-block: 100px;
}

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

.feature-grid article {
  min-height: 180px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(145deg, var(--surface-light), var(--surface));
}

.feature-grid p,
.content-section p,
.download p {
  color: var(--muted);
}

.content-section {
  max-width: 900px;
  border-top: 1px solid var(--border);
}

.content-section p {
  font-size: 1.08rem;
}

.rtl {
  font-family: Tahoma, "Segoe UI", Arial, sans-serif;
}

.text-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 1.05rem;
  font-weight: 750;
}

.download {
  padding-block: 70px;
  border-block: 1px solid var(--border);
  background: rgba(17, 28, 45, 0.66);
}

.download-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.download h2 {
  margin-bottom: 8px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-block: 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    padding-top: 45px;
  }

  .hero-image {
    order: -1;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .container {
    width: min(100% - 26px, 1120px);
  }

  .nav,
  .download-inner,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .languages {
    justify-content: flex-start;
    gap: 14px;
  }

  .hero-content {
    gap: 34px;
    padding-bottom: 70px;
  }

  h1 {
    font-size: 2.55rem;
  }

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

  .features,
  .content-section {
    padding-block: 70px;
  }
}