/* Fullscreen center */
body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  color: #fff;
}

/* Container */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

/* Card */
.login-card {
  background: rgba(20, 20, 30, 0.9);
  padding: 40px;
  border-radius: 12px;
  width: 350px;
  text-align: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(0, 255, 127, 0.3);
}

/* Title */
.login-card h1 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: #00ff7f;
  text-shadow: 0 0 8px #00ff7f, 0 0 20px #00ff7f;
}

.subtitle {
  font-size: 0.9rem;
  margin-bottom: 20px;
  color: #aaa;
}

/* Error message */
.error-msg {
  background: rgba(255, 0, 0, 0.2);
  border: 1px solid #ff4d4d;
  color: #ff4d4d;
  padding: 8px;
  margin-bottom: 15px;
  border-radius: 6px;
  font-size: 0.85rem;
}

/* Input groups */
.input-group {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
  background: #2c3e50;
  border-radius: 6px;
  padding: 8px;
}

.input-group i {
  color: #00ff7f;
  margin-right: 8px;
}

.input-group input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: #fff;
  font-size: 14px;
}

.input-group input::placeholder {
  color: #bbb;
}

/* Button */
.btn-login {
  background: #00ff7f;
  color: #000;
  border: none;
  padding: 12px;
  width: 100%;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  margin-top: 10px;
  transition: background 0.2s ease, transform 0.1s ease;
}

.btn-login:hover {
  background: #00cc66;
  transform: scale(1.05);
}