* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  background-color: #111;
  color: white;
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}
header {
  background: #111;
  padding: 1rem 2rem;
  text-align: center;
  border-bottom: 1px solid #222;
}
.logo {
  display: inline-block;
  background-color: #e13131;
  color: white;
  font-weight: bold;
  font-size: 1.2rem;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
}
.container {
  max-width: 500px;
  margin: 2rem auto;
  padding: 1rem;
}
h1 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  text-align: center;
}
input, select, button {
  width: 100%;
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  font-size: 1rem;
  border-radius: 10px;
  border: 2px solid #333;
  background: #111;
  color: white;
  transition: 0.2s;
}
input:focus, select:focus {
  border-color: #e13131;
  outline: none;
}
button {
  background-color: #e13131;
  border: none;
  cursor: pointer;
  font-weight: bold;
}
button:hover {
  background-color: #c12727;
}
@media (max-width: 600px) {
  h1 {
    font-size: 1.3rem;
  }
  .container {
    padding: 1rem 1rem;
  }
  input, select, button {
    font-size: 1rem;
  }
}
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #e91c1c;
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity 0.4s;
  z-index: 999;
}
.toast.show {
  opacity: 1;
}