body {
  margin: 0;
  font-family: 'Inter', Arial, sans-serif;
  background: linear-gradient(120deg, #f8fafc 0%, #e3ecfc 100%);
  color: #2a2d34;
  min-height: 100vh;
}
.hero {
  position: relative;
  padding: 3rem 0 5rem 0;
  background: linear-gradient(120deg, #3773fa 0%, #33cfc0 100%);
  color: #fff;
  text-align: center;
  overflow: hidden;
}
.hero-content {
  z-index: 2;
  position: relative;
  max-width: 560px;
  margin: 0 auto;
}
.logo {
  width: 64px;
  margin-bottom: 1.25rem;
  animation: popIn 1s cubic-bezier(0.23, 1, 0.32, 1);
}
@keyframes popIn {
  0% { opacity: 0; transform: scale(0.6); }
  70% { opacity: 1; transform: scale(1.09); }
  100% { opacity: 1; transform: scale(1); }
}
.hero h1 {
  margin: 0 0 0.5rem 0;
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -1px;
}
.subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: #d9f6ec;
  font-weight: 500;
}
.cta-btn {
  display: inline-block;
  margin-top: 0.5rem;
  background: #fff;
  color: #3773fa;
  font-weight: 700;
  padding: 0.75rem 2.25rem;
  border-radius: 32px;
  font-size: 1.1rem;
  box-shadow: 0 2px 16px 0 rgba(51, 207, 192, 0.08);
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-decoration: none;
}
.cta-btn:hover {
  background: #3773fa;
  color: #fff;
  box-shadow: 0 4px 24px 0 rgba(51, 207, 192, 0.21);
}
.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 1;
  background: url('../img/hero-bg.svg') center/cover no-repeat;
  opacity: 0.08;
  pointer-events: none;
}

main {
  max-width: 1200px;
  margin: -3rem auto 0 auto;
  padding: 2rem 1rem 3rem 1rem;
}
.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.2rem;
  margin: 0 auto;
  padding: 2.5rem 0 1rem 0;
  justify-items: center;
}
.feature-card {
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 2px 16px rgba(51, 207, 192, 0.07),
              0 1.5px 7px rgba(55,115,250,0.06);
  padding: 2.2rem 1.6rem 1.7rem 1.6rem;
  cursor: pointer;
  width: 100%;
  max-width: 370px;
  min-height: 340px;
  transition: transform 0.17s cubic-bezier(.44,1.5,.55,1), box-shadow 0.18s;
  position: relative;
  text-align: center;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 8px 32px rgba(55, 115, 250, 0.16),
              0 3px 14px rgba(51,207,192,0.10);
}
.icon-bg {
  background: linear-gradient(120deg,#e3ecfc 0%,#d0f2f0 100%);
  border-radius: 50%;
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.1rem auto;
  box-shadow: 0 2px 8px rgba(51,207,192,0.08);
  transition: background 0.18s;
}
.feature-card:hover .icon-bg {
  background: linear-gradient(120deg,#3773fa 0%,#33cfc0 100%);
}
.feature-card h2 {
  font-size: 1.38rem;
  margin: 0.2rem 0 0.6rem 0;
  font-weight: 600;
  color: #3773fa;
  letter-spacing: -0.5px;
}
.feature-card p {
  font-size: 1.04rem;
  color: #40434e;
  margin: 0.5rem 0 0 0;
  min-height: 54px;
}
.card-hoverline {
  display: block;
  width: 38px;
  height: 3px;
  background: linear-gradient(120deg, #33cfc0 0%, #3773fa 100%);
  border-radius: 2px;
  margin: 1.5rem auto 0 auto;
  opacity: 0.12;
  transition: opacity 0.2s;
}
.feature-card:hover .card-hoverline {
  opacity: 1;
}
footer {
  text-align: center;
  font-size: 1rem;
  color: #8a8ea3;
  background: none;
  padding: 2.5rem 1rem 1.5rem 1rem;
}

@media (max-width: 900px) {
  .feature-cards {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .feature-card {
    min-height: 0;
    max-width: 95vw;
  }
}
@media (max-width: 540px) {
  .hero h1 {
    font-size: 2rem;
  }
  .subtitle {
    font-size: 1rem;
  }
}