:root {
  --grad-a: #69c9ff;
  --grad-b: #33d3b4;
  --text: #14314f;
  --card: rgba(255, 255, 255, 0.78);
  --line: rgba(255, 255, 255, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", "Inter", Arial, sans-serif;
  color: var(--text);
  scroll-behavior: smooth;
}

body {
  position: relative;
  min-height: 100vh;
  line-height: 1.6;
}

.page-bg,
.overlay {
  position: fixed;
  inset: 0;
  z-index: -2;
}

.page-bg {
  background-image: url("https://images.unsplash.com/photo-1547447134-cd3f5c716030?auto=format&fit=crop&w=1800&q=80");
  background-size: cover;
  background-position: center;
  transform: scale(1.03);
}

.overlay {
  z-index: -1;
  background:
    linear-gradient(128deg, rgba(105, 201, 255, 0.3), rgba(51, 211, 180, 0.3)),
    rgba(247, 252, 255, 0.62);
  backdrop-filter: blur(1px);
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(9px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.3px;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  object-fit: cover;
}

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

nav a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 999px;
  transition: all 0.2s ease;
}

nav a:hover {
  background: linear-gradient(90deg, rgba(105, 201, 255, 0.2), rgba(51, 211, 180, 0.2));
}

main section {
  padding: 66px 0;
}

.banner-content {
  padding: 72px 0 64px;
  min-height: 52vh;
  display: grid;
  align-items: center;
}

.title-block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: clamp(26px, 4vw, 48px);
  max-width: 760px;
  box-shadow: 0 18px 38px rgba(20, 49, 79, 0.12);
}

.title-block img {
  width: 58px;
  height: 58px;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 16px;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(1.9rem, 3.7vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: 0.2px;
}

h2 {
  margin: 0 0 26px;
  font-size: clamp(1.45rem, 2.7vw, 2.15rem);
}

h3 {
  margin: 0 0 10px;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
}

p {
  margin: 0;
}

.feature-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(12, 1fr);
}

.feature-card {
  display: grid;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(20, 49, 79, 0.12);
}

.feature-card.tall {
  grid-column: span 6;
  grid-template-columns: 1fr 1fr;
}

.feature-card.wide {
  grid-column: span 12;
  grid-template-columns: 1fr 1.15fr;
}

.feature-card.reverse {
  direction: rtl;
}

.feature-card.reverse .text-wrap,
.feature-card.reverse .image-wrap {
  direction: ltr;
}

.image-wrap {
  display: flex;
}

.image-wrap img {
  width: 100%;
  aspect-ratio: 9 / 20;
  object-fit: cover;
}

.text-wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(14px, 2vw, 24px);
}

.screenshot .shot-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
}

.shot {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 8px;
  box-shadow: 0 10px 24px rgba(20, 49, 79, 0.1);
}

.shot img {
  width: 100%;
  aspect-ratio: 9 / 20;
  object-fit: cover;
  border-radius: 12px;
}

.site-footer {
  margin-top: 18px;
  background: rgba(255, 255, 255, 0.74);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(9px);
}

.footer-wrap {
  padding: 22px 0 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-info {
  display: grid;
  gap: 2px;
  font-weight: 500;
}

.contact-info a {
  color: #0f678c;
  text-decoration: none;
}

.contact-info a:hover {
  text-decoration: underline;
}

@media (max-width: 980px) {
  .feature-card.tall,
  .feature-card.wide {
    grid-column: span 12;
    grid-template-columns: 1fr;
  }

  .feature-card.reverse {
    direction: ltr;
  }

  .screenshot .shot-grid {
    grid-template-columns: repeat(3, minmax(120px, 1fr));
  }
}

@media (max-width: 640px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  nav ul {
    gap: 6px;
  }

  nav a {
    padding: 7px 10px;
    font-size: 0.88rem;
  }

  main section {
    padding: 48px 0;
  }

  .banner-content {
    min-height: 44vh;
    padding: 44px 0;
  }

  .title-block {
    border-radius: 18px;
  }

  .screenshot .shot-grid {
    grid-template-columns: repeat(2, minmax(115px, 1fr));
  }

  .footer-wrap {
    align-items: flex-start;
  }
}