body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0f172a;
    color: #f8fafc;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 1px solid #1e293b;
    padding-bottom: 20px;
}

h1 { color: #38bdf8; font-size: 24px; }

.card {
    background: #1e293b;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.switch-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.switch-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: #0f172a;
    border-radius: 8px;
}

/* Toggle Switch Styles */
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
}

.switch input { opacity: 0; width: 0; height: 0; }

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #475569;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px; width: 16px;
  left: 4px; bottom: 4px;
  background-color: white;
  transition: .4s;
}

input:checked + .slider { background-color: #38bdf8; }
input:checked + .slider:before { transform: translateX(26px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

.input-group {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

input[type="text"] {
    flex: 1;
    background: #0f172a;
    border: 1px solid #334155;
    padding: 8px;
    color: white;
    border-radius: 4px;
}

button {
    cursor: pointer;
    background: #38bdf8;
    color: #0f172a;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: bold;
}

.btn-primary {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    margin-top: 20px;
}

#status {
    text-align: center;
    margin-top: 10px;
    font-size: 14px;
    color: #94a3b8;
}