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

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #1db954, #121212);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 380px;
  padding: 20px;
}

.login-card {
  background: rgba(18,18,18,0.95);
  padding: 35px 30px;
  border-radius: 18px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
  text-align: center;
  animation: fadeIn 0.8s ease;
}

.login-card h2 {
  color: #1db954;
  margin-bottom: 5px;
}

.login-card p {
  color: #aaa;
  margin-bottom: 25px;
}

.input-group {
  position: relative;
  margin-bottom: 22px;
}

.input-group input {
  width: 100%;
  padding: 14px 12px;
  border-radius: 10px;
  border: none;
  background: #222;
  color: #fff;
  outline: none;
  font-size: 15px;
}

.input-group label {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #777;
  font-size: 14px;
  pointer-events: none;
  transition: 0.3s;
}

.input-group input:focus + label,
.input-group input:valid + label {
  top: -6px;
  font-size: 12px;
  color: #1db954;
  background: #121212;
  padding: 0 6px;
}

button {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: none;
  background: #1db954;
  color: #000;
  font-weight: bold;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #1ed760;
  transform: scale(1.03);
}

small {
  display: block;
  margin-top: 20px;
  color: #aaa;
}

small a {
  color: #1db954;
  text-decoration: none;
}

small a:hover {
  text-decoration: underline;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.alert {
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 15px;
  font-size: 14px;
}

.alert.error {
  background: #ff4d4d22;
  color: #ff6b6b;
  border: 1px solid #ff6b6b55;
}

.alert.success {
  background: #1db95422;
  color: #1db954;
  border: 1px solid #1db95455;
}