:root {
  --blue: #16324f;
  --primary: #16324f;
}

#login {
  background:
    radial-gradient(circle at 18% 15%, rgba(44, 183, 160, 0.14), transparent 30%),
    linear-gradient(145deg, #f7fafc 0%, #edf3f7 55%, #e8f1f3 100%);
}

#login form {
  max-width: 24rem;
  padding: 2.2rem 2.4rem 2.4rem;
  border: 1px solid rgba(22, 50, 79, 0.12);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 24px 70px rgba(22, 50, 79, 0.14);
  backdrop-filter: blur(12px);
}

#login img {
  width: min(18rem, 82vw);
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(22, 50, 79, 0.16);
}

#login h1 {
  margin: 1.2rem 0 1.4rem;
  color: #16324f;
  font-size: 1.25rem;
  line-height: 1.45;
  font-weight: 750;
  letter-spacing: -0.035em;
}

#login h1::after {
  content: "분양광고 자료 공유 웹하드";
  display: block;
  margin-top: 0.45rem;
  color: #527089;
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

#login input {
  border-radius: 10px;
}

#login button {
  border-radius: 10px;
  background: #16324f;
}

header img {
  width: 8.8rem;
  height: auto;
  border-radius: 6px;
}

@media (max-width: 520px) {
  #login form {
    width: calc(100% - 2rem);
    padding: 1.6rem 1.35rem 1.8rem;
  }
  #login h1 { font-size: 1.08rem; }
}