* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  font-family: Arial, sans-serif;
  background: #121212;
  color: #f1f1f1;
}

body {
  background: #121212;
  color: #f1f1f1;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: #ffffff;
}

p {
  line-height: 1.5;
  color: #cfcfcf;
}

button {
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  background: #3a3a3a;
  color: white;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s ease;
}

button:hover {
  background: #555;
}

button.active {
  background: #6a6a6a;
}

form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
}

label {
  font-size: 14px;
  color: #d7d7d7;
}

input,
select {
  width: 100%;
  padding: 12px;
  margin-top: 6px;
  border-radius: 8px;
  border: 1px solid #3a3a3a;
  background: #2a2a2a;
  color: #fff;
  font-size: 14px;
}

input:focus,
select:focus {
  outline: none;
  border-color: #777;
}

.hidden {
  display: none !important;
}

#bg-particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

main {
  position: relative;
  z-index: 1;
}