* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #06101a;
  color: #e2e8f0;
}

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

.card {
  background: #10243b;
  padding: 20px;
  border-radius: 16px;
  margin-bottom: 20px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.notice {
  background: #16324f;
  border: 1px solid #315985;
  border-radius: 12px;
  padding: 12px;
  margin: 12px 0;
}

h1, h2 {
  margin-top: 0;
}

.muted {
  color: #94a3b8;
}

label {
  display: block;
  margin-top: 12px;
  margin-bottom: 6px;
  font-weight: bold;
}

input, select {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 10px;
  background: #1d3557;
  color: white;
}

button {
  margin-top: 14px;
  padding: 12px 16px;
  border: none;
  border-radius: 10px;
  background: #2563eb;
  color: white;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

.hidden {
  display: none;
}

.record {
  background: #16324f;
  border: 1px solid #284c75;
  border-radius: 12px;
  padding: 14px;
  margin-top: 12px;
}

.success {
  color: #86efac;
}

.error {
  color: #fca5a5;
}