:root {
  --airbnb-red: #FF5A5F;
  --airbnb-red-dark: #E04A4F;
  --dark: #2D2D2D;
  --muted: #6B6B6B;
  --bg: #F7F7F7;
  --card: #FFFFFF;
  --border: #E5E5E5;
  --success: #2E7D32;
  --error: #D32F2F;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--dark);
  line-height: 1.5;
}

main {
  max-width: 640px;
  margin: 40px auto;
  padding: 0 20px;
}

header {
  text-align: center;
  margin-bottom: 32px;
}

h1 {
  font-size: 28px;
  margin: 0 0 8px;
}

.subtitle {
  color: var(--muted);
  margin: 0;
}

form {
  background: var(--card);
  padding: 28px;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

label {
  display: block;
  margin-bottom: 16px;
  font-weight: 600;
  font-size: 14px;
  color: var(--dark);
}

.req { color: var(--airbnb-red); }

input[type="text"],
input[type="date"],
input[type="number"] {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 400;
  background: white;
  transition: border-color 0.15s;
}

input:focus {
  outline: none;
  border-color: var(--airbnb-red);
}

.row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.row label { margin-bottom: 12px; }

button {
  width: 100%;
  padding: 14px;
  background: var(--airbnb-red);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.15s;
}

button:hover:not(:disabled) { background: var(--airbnb-red-dark); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.hint {
  color: var(--muted);
  font-size: 12px;
  margin: 12px 0 0;
  text-align: center;
}

.status {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 13px;
  text-align: center;
}

.status.info { background: #E3F2FD; color: #1565C0; }
.status.success { background: #E8F5E9; color: var(--success); }
.status.error { background: #FFEBEE; color: var(--error); }

@media (max-width: 480px) {
  .row { grid-template-columns: 1fr; }
}