* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background: linear-gradient(135deg, #dfe6ff, #eef2ff);
}

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 6%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: bold;
}

.logo-box {
  background: linear-gradient(135deg, #6a5cff, #8f6bff);
  color: white;
  padding: 8px 12px;
  border-radius: 10px;
}

/* BUTTON */
.download-btn {
  background: linear-gradient(135deg, #ff9800, #ffb74d);
  padding: 10px 18px;
  color: white;
  border-radius: 10px;
  text-decoration: none;
}

/* HERO */
.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 40px 8% 30px;
}

.hero-content {
  width: 50%;
}

.tagline {
  color: green;
  font-size: 14px;
  margin-bottom: 6px;
}

.hero-content h1 {
  font-size: 48px;
  margin-bottom: 10px;
}

.hero-content span {
  color: #6a5cff;
}

.install-btn {
  background: linear-gradient(135deg, #6a5cff, #8f6bff);
  color: white;
  padding: 14px 28px;
  border: none;
  border-radius: 12px;
  margin: 15px 0;
}

/* FEATURES */
.features {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.features div {
  background: white;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 14px;
}

/* PHONE */
.phone-wrapper img {
  width: 260px;
  border-radius: 25px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

/* PROMO */
.promo-section {
  padding: 30px 8%;
}

.promo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.promo-card {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.promo-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* SERVICES */
.services {
  padding: 30px 8%;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-box {
  background: white;
  padding: 20px;
  text-align: center;
  border-radius: 16px;
}

/* HOW */
.how {
  padding: 40px 8%;
}

.how-steps {
  display: flex;
  gap: 20px;
}

.step {
  background: white;
  padding: 20px;
  flex: 1;
  text-align: center;
  border-radius: 16px;
}

.step span {
  background: #6a5cff;
  color: white;
  padding: 6px 10px;
  border-radius: 50%;
}

/* MOBILE */
@media (max-width: 768px) {

  .hero {
    flex-direction: column;
    text-align: center;
  }

  .hero-content {
    width: 100%;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .phone-wrapper {
    margin-top: 20px;
  }

  .features {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

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

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

  .how-steps {
    flex-direction: column;
  }

}