body, html {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', 'Arial', sans-serif;
  color: #fff;
  background: #0a0e17;
  overflow-x: hidden;
}

.video-bg {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  z-index: 0;
  overflow: hidden;
}
.video-bg video {
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  filter: brightness(0.3) blur(1px);
}
.overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(120deg, #0a0e17 60%, #1a1f2a 100%);
  opacity: 0.8;
}

.content {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 16px 24px 16px;
}
.logo {
  width: 110px;
  height: auto;
  margin-bottom: 24px;
  border-radius: 16px;
  box-shadow: 0 4px 24px #0008;
  background: #fff1;
}
h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0 0 12px 0;
  text-align: center;
  letter-spacing: 0.01em;
  background: #fff;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.subtitle {
  font-size: 1.1rem;
  margin-bottom: 32px;
  text-align: center;
  color: #b3b8c7;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
  justify-content: center;
  margin-bottom: 32px;
  max-width: 900px;
  width: 100%;
}
.card {
  background: rgba(20, 25, 35, 0.95);
  border-radius: 18px;
  box-shadow: 0 2px 16px #0005;
  padding: 22px 20px 18px 20px;
  min-width: 220px;
  max-width: 270px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1.08rem;
  font-weight: 500;
  color: #f3f6fa;
  border: 1.5px solid #2e3340;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  backdrop-filter: blur(10px);
  text-decoration: none;
  cursor: pointer;
}
.card:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 6px 32px #0007;
  border-color: #00d4ff;
  background: rgba(20, 25, 35, 0.98);
}
.emoji {
  font-size: 1.5rem;
  margin-right: 6px;
  flex-shrink: 0;
}
.cta {
  margin: 18px 0 28px 0;
  font-size: 1.08rem;
  color: #e0e3ea;
  text-align: center;
}
.tg-btn {
  display: inline-block;
  background: linear-gradient(90deg, #229ed9 60%, #3e8ef7 100%);
  color: #fff;
  font-size: 1.18rem;
  font-weight: 700;
  padding: 16px 38px;
  border-radius: 32px;
  text-decoration: none;
  box-shadow: 0 4px 24px #229ed988;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
}
.tg-btn:hover {
  background: linear-gradient(90deg, #3e8ef7 60%, #229ed9 100%);
  box-shadow: 0 6px 32px #3e8ef788;
}

@media (max-width: 700px) {
  .cards {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .card {
    min-width: 0;
    max-width: 100%;
    font-size: 1rem;
  }
  .logo {
    width: 80px;
    margin-bottom: 16px;
  }
  h1 {
    font-size: 1.3rem;
  }
  .tg-btn {
    font-size: 1rem;
    padding: 12px 18px;
  }
}