* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #1a1a2e;
  color: #fff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  background: #16213e;
  padding: 3rem 2.5rem;
  border-radius: 1.5rem;
  width: 90%;
  max-width: 400px;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  font-weight: 300;
  letter-spacing: 0.1em;
}

.field {
  margin-bottom: 1.5rem;
  text-align: left;
}

label {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
  opacity: 0.8;
}

input {
  width: 100%;
  padding: 1rem;
  font-size: 1.2rem;
  border: 2px solid #0f3460;
  border-radius: 0.8rem;
  background: #0f3460;
  color: #fff;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: #e94560;
}

button {
  width: 100%;
  padding: 1rem;
  font-size: 1.3rem;
  background: #e94560;
  color: #fff;
  border: none;
  border-radius: 0.8rem;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: background 0.2s;
}

button:hover {
  background: #d63851;
}

.error {
  color: #e94560;
  margin-top: 1rem;
  font-size: 1rem;
  display: none;
}