* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

.container {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 16px;
}

h1 {
  margin-bottom: 8px;
}

.subtitle {
  margin-top: 0;
  color: #94a3b8;
}

.card {
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 16px;
  margin-top: 16px;
}

.muted {
  color: #94a3b8;
}

.row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.form {
  display: grid;
  gap: 12px;
}

.label {
  display: grid;
  gap: 6px;
  color: #cbd5e1;
}

.input {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #1f2937;
  background: #0b1220;
  color: #e2e8f0;
  padding: 10px 12px;
  outline: none;
}

.input:focus {
  border-color: #334155;
}

.button {
  border: 1px solid #334155;
  background: #1f2937;
  color: #e2e8f0;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.button:hover {
  background: #243244;
}

.button-secondary {
  background: transparent;
}

.error {
  margin: 0;
  color: #fca5a5;
}

#visit-list {
  margin: 0;
  padding-left: 18px;
}

#visit-list li {
  margin-bottom: 8px;
  color: #cbd5e1;
}