html, body {
  margin: 0;
  min-height: 100vh;
}

body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to bottom, #262b31, #111111);
  color: #d1d5db;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-card {
  width: 34%;
  min-width: 20rem;
  max-width: 28rem;
  background: linear-gradient(to bottom, #1f242a, #171b20);
  border: 0.08rem solid rgba(255, 255, 255, 0.06);
  border-radius: 1.4rem;
  box-shadow:
    0 1.4rem 3rem rgba(0, 0, 0, 0.38),
    0 0.15rem 0.5rem rgba(255, 255, 255, 0.04) inset;
  padding: 8vh 8%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-title {
  margin: 0 0 1.2vh 0;
  font-size: 2.3rem;
  color: #e5e7eb;
  text-align: center;
}

.subtitle {
  margin: 0 0 4.5vh 0;
  font-size: 1rem;
  color: #9ca3af;
  text-align: center;
}

.login-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2vh;
}

.login-form input {
  width: 100%;
  padding: 1rem 1rem;
  font-size: 1rem;
  border: 0.08rem solid #49515a;
  border-radius: 0.9rem;
  background: #2b3138;
  color: #e5e7eb;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.login-form input::placeholder {
  color: #94a3b8;
}

.login-form input:hover {
  border-color: #66707b;
}

.login-form input:focus {
  border-color: #7b8794;
  box-shadow: 0 0 0 0.22rem rgba(160, 170, 180, 0.14);
}

.login-form button {
  width: 62%;
  padding: 0.95rem 1rem;
  font-size: 1rem;
  border: none;
  border-radius: 0.9rem;
  background: #4a5159;
  color: #f3f4f6;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.login-form button:hover {
  background: #5b646e;
  transform: translateY(-0.08rem);
  box-shadow: 0 0.7rem 1.6rem rgba(120, 128, 138, 0.18);
}

.login-form button:active {
  transform: translateY(0);
  box-shadow: none;
}

@media (max-width: 700px) {
  .login-card {
    width: 84%;
    min-width: 0;
    padding: 6vh 7%;
    border-radius: 1.1rem;
  }

  .page-title {
    font-size: 2rem;
  }

  .subtitle {
    font-size: 0.95rem;
    margin-bottom: 4vh;
  }

  .login-form input {
    font-size: 1rem;
    border-radius: 0.85rem;
  }

  .login-form button {
    width: 70%;
    font-size: 1rem;
    border-radius: 0.85rem;
  }
}