* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  height: 100vh;
  background: linear-gradient(135deg, #020617, #020f2f, #0a1f44);
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: 320px;
  background: linear-gradient(180deg, #071a2e, #061526);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.title {
  color: #eaf6ff;
  text-align: center;
  margin-bottom: 6px;
}

.subtitle {
  color: #9bb7c9;
  text-align: center;
  font-size: 14px;
  margin-bottom: 20px;
}

input {
  width: 100%;
  padding: 10px;
  margin-bottom: 14px;
  border-radius: 6px;
  border: none;
  outline: none;
  background: #0b2740;
  color: #eaf6ff;
}

input::placeholder {
  color: #8faec3;
}

button {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 6px;
  background: #1e90ff;
  color: white;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: #187bcd;
}

.error {
  color: #ff6b6b;
  font-size: 14px;
  margin-top: 12px;
  text-align: center;
}