* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: start center;
  padding: 52px 24px;
  font-family: "Ubuntu", "Noto Sans", "Segoe UI", sans-serif;
  color: #26384a;
  background: linear-gradient(180deg, #eef2f7 0%, #e8edf5 100%);
}

.login-shell {
  width: min(660px, 100%);
}

.login-card {
  width: 100%;
  padding: 46px 40px 28px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid #e6edf5;
  box-shadow: 0 10px 28px rgba(36, 57, 77, 0.08);
}

.login-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 26px;
}

.login-logo img {
  width: min(320px, 100%);
  height: auto;
  display: block;
}

.login-card h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.05;
  color: #2a3642;
}

.login-card p {
  margin: 12px 0 0;
  font-size: 18px;
  line-height: 1.45;
  color: #667892;
}

.login-user {
  margin-top: 10px;
  font-size: 15px;
  color: #49627d;
}

.error {
  display: none;
  margin: 24px 0 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: #faece8;
  border: 1px solid #efcdc6;
  color: #c0685d;
  font-size: 15px;
}

form {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

label {
  display: grid;
  gap: 10px;
  font-size: 16px;
  font-weight: 500;
  color: #2f3e4c;
}

input {
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid #d7e1ec;
  border-radius: 8px;
  background: #edf3ff;
  color: #24394d;
  font: inherit;
}

input:focus {
  outline: 0;
  border-color: #7b9ec2;
  box-shadow: 0 0 0 3px rgba(66, 100, 128, 0.12);
}

button {
  margin-top: 8px;
  min-height: 40px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(180deg, #416782 0%, #21384a 100%);
  color: #ffffff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

@media (max-width: 640px) {
  body {
    padding: 20px 12px;
  }

  .login-card {
    padding: 28px 20px 20px;
  }

  .login-card h1 {
    font-size: 28px;
  }

  .login-card p {
    font-size: 16px;
  }
}