* {
  margin: 0;

  padding: 0;

  box-sizing: border-box;

  font-family: Inter, Arial, sans-serif;
}

body {
  min-height: 100vh;

  display: flex;

  justify-content: center;

  align-items: center;

  background: linear-gradient(135deg, #0f172a, #1d4ed8);

  padding: 20px;
}

.card {
  width: 100%;

  max-width: 470px;

  background: white;

  padding: 40px;

  border-radius: 26px;

  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.logo {
  font-size: 34px;

  font-weight: 800;

  text-align: center;

  color: #2563eb;

  margin-bottom: 12px;
}

.title {
  text-align: center;

  font-size: 32px;

  margin-bottom: 10px;
}

.sub {
  text-align: center;

  color: #6b7280;

  margin-bottom: 35px;
}

.input {
  width: 100%;

  padding: 18px;

  margin-bottom: 18px;

  border: 1px solid #d1d5db;

  border-radius: 12px;

  font-size: 16px;
}

.input:focus {
  outline: none;

  border-color: #2563eb;
}

.btn {
  width: 100%;

  padding: 18px;

  border: none;

  border-radius: 12px;

  background: #2563eb;

  color: white;

  font-size: 18px;

  font-weight: 700;

  cursor: pointer;
}

.btn:hover {
  background: #1d4ed8;
}

.msg {
  margin-bottom: 20px;

  padding: 15px;

  border-radius: 10px;

  background: #eff6ff;

  color: #2563eb;

  text-align: center;
}

.bottom {
  text-align: center;

  margin-top: 20px;
}

.bottom a {
  text-decoration: none;

  color: #2563eb;

  font-weight: 700;
}

@media (max-width: 500px) {
  .card {
    padding: 30px;
  }

  .title {
    font-size: 28px;
  }
}