* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f8f9fa;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 400px;
}

.card {
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

h1 {
  font-size: 24px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 8px;
}

.subtitle {
  color: #666;
  margin-bottom: 32px;
  font-size: 15px;
}

.field {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #333;
  margin-bottom: 6px;
}

input {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input::placeholder {
  color: #aaa;
}

.error {
  display: none;
  color: #dc2626;
  font-size: 12px;
  margin-top: 6px;
}

input.invalid + .error {
  display: block;
}

input.invalid {
  border-color: #dc2626;
}

button {
  width: 100%;
  padding: 14px;
  font-size: 15px;
  font-weight: 500;
  color: #fff;
  background: #2563eb;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

button:hover {
  background: #1d4ed8;
}

button:active {
  transform: scale(0.98);
}

.success {
  display: none;
  text-align: center;
  padding: 20px 0;
}

.success.show {
  display: block;
}

.checkmark {
  width: 60px;
  height: 60px;
  background: #10b981;
  color: #fff;
  font-size: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.success h2 {
  font-size: 22px;
  color: #1a1a1a;
  margin-bottom: 8px;
}

.success p {
  color: #666;
}

#bookingForm.hidden {
  display: none;
}