body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #0d0d0d;
  color: #ffffff;
  overflow-x: hidden;
  overflow-y: auto;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  z-index: 0;
  top: 0;
  left: 0;
}

.container {
  position: relative;
  background: #1a1a1a;
  padding: 40px 50px;
  border-radius: 12px;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.6);
  z-index: 1;
  text-align: center;
  max-width: 450px;
  width: 100%;
  border: 1px solid #2e2e2e;
}

.container h2 {
  margin-bottom: 20px;
  color: #00ffaa;
  font-size: 1.8rem;
  font-weight: 600;
}

input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 12px 15px;
  margin: 10px 0;
  border: 1px solid #333;
  border-radius: 6px;
  background: #111;
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: border 0.3s ease;
}

input[type="password"]:focus,
input[type="text"]:focus {
  border-color: #00ffaa;
  background-color: #1d1d1d;
}

button {
  background: #00ffaa;
  color: #0d0d0d;
  border: none;
  padding: 12px 25px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  box-shadow: 0 0 10px #00ffaa;
  transition: all 0.2s ease-in-out;
  margin-top: 15px;
}

button:hover {
  background: #00e6cc;
  box-shadow: 0 0 15px #00e6cc;
}

label {
  display: block;
  margin-top: 15px;
  color: #cccccc;
  font-size: 0.95rem;
  text-align: left;
}

p {
  color: #bbbbbb;
  margin-bottom: 20px;
  font-size: 0.95rem;
  text-align: center;
}

@media screen and (max-width: 480px) {
  .container {
    padding: 30px 20px;
    max-width: 100%;
  }

  .container h2 {
    font-size: 1.5rem;
  }

  button {
    width: 100%;
  }
}