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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
  color: #1a202c;
}

.page-wrapper {
  max-width: 600px;
  margin: 0 auto;
}

.page-header {
  text-align: center;
  margin-bottom: 32px;
  color: white;
}

.page-header h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 8px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
  font-size: 16px;
  opacity: 0.95;
  font-weight: 400;
}

.calendar-container {
  background: white;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.calendar-header button {
  background: #f7fafc;
  color: #4a5568;
  border: 1px solid #e2e8f0;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.calendar-header button:hover {
  background: #667eea;
  color: white;
  border-color: #667eea;
  transform: scale(1.05);
}

.calendar-header button:active {
  transform: scale(0.95);
}

#current-month {
  font-size: 20px;
  font-weight: 600;
  color: #2d3748;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-bottom: 24px;
}

.day-header {
  background: transparent;
  color: #718096;
  padding: 12px 8px;
  text-align: center;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.calendar-day {
  background: #f7fafc;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.calendar-day.other-month {
  color: #cbd5e0;
  background: transparent;
  cursor: default;
}

.calendar-day.unavailable {
  background: #fed7d7;
  color: #c53030;
  cursor: not-allowed;
  position: relative;
}

.calendar-day.unavailable::after {
  content: "";
  position: absolute;
  width: 1px;
  height: 100%;
  background: #c53030;
  transform: rotate(45deg);
}

.calendar-day:hover:not(.unavailable):not(.other-month) {
  background: #edf2f7;
  border-color: #667eea;
  transform: scale(1.05);
}

.calendar-day.selected {
  background: #48bb78;
  color: white;
  border-color: #38a169;
  font-weight: 600;
}

.calendar-day.range-start,
.calendar-day.range-end {
  background: #667eea;
  color: white;
  border-color: #5a67d8;
  font-weight: 600;
}

.calendar-day.in-range {
  background: #e9d8fd;
  color: #553c9a;
  border-color: #d6bcfa;
}

.selection-info {
  padding: 20px;
  background: #f7fafc;
  border-radius: 12px;
  margin-bottom: 20px;
}

.selected-dates-display {
  margin-bottom: 16px;
  text-align: center;
}

.selected-dates-display .label {
  font-weight: 600;
  color: #4a5568;
  margin-right: 8px;
}

.selected-dates-display .dates-value {
  color: #667eea;
  font-weight: 600;
}

.button-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.2s ease;
  font-family: inherit;
}

.btn-primary {
  background: #667eea;
  color: white;
}

.btn-primary:hover {
  background: #5a67d8;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: white;
  color: #4a5568;
  border: 2px solid #e2e8f0;
}

.btn-secondary:hover {
  background: #f7fafc;
  border-color: #cbd5e0;
}

.btn:active {
  transform: translateY(0);
}

.btn-large {
  padding: 14px 32px;
  font-size: 16px;
}

/* Booking Form Styling */
.booking-form {
  display: none;
  padding: 24px;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  background: #f7fafc;
}

.booking-form.show {
  display: block;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.booking-form h3 {
  font-size: 22px;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 8px;
}

.form-description {
  color: #718096;
  margin-bottom: 24px;
  font-size: 14px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #2d3748;
  font-size: 14px;
}

.required {
  color: #e53e3e;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  transition: all 0.2s ease;
  background: white;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input::placeholder {
  color: #a0aec0;
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: #fc8181;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.form-actions .btn {
  flex: 1;
  min-width: 140px;
}

/* Responsive Design */
@media (max-width: 640px) {
  body {
    padding: 12px;
  }

  .calendar-container {
    padding: 20px;
  }

  .page-header h1 {
    font-size: 28px;
  }

  .calendar-grid {
    gap: 4px;
  }

  .calendar-day {
    min-height: 40px;
    padding: 8px;
    font-size: 14px;
  }

  .day-header {
    font-size: 12px;
    padding: 8px 4px;
  }

  .button-group {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .form-actions {
    flex-direction: column;
  }

  .form-actions .btn {
    width: 100%;
  }
}

/* Existing CSS remains unchanged... */

/* New: Room Selector Styles */
.room-selector {
  margin-bottom: 16px;
  width: 100%;
}

.room-selector label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #2d3748;
  font-size: 14px;
}

.room-selector select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  background: white;
  color: #4a5568;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 16px;
}

.room-selector select:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.room-selector select:hover {
  border-color: #cbd5e0;
}

.room-selector select option {
  padding: 8px;
  background: white;
}

/* Responsive: Smaller on mobile */
@media (max-width: 640px) {
  .room-selector select {
    padding: 10px 12px;
    font-size: 14px;
  }
}

/* Coupon Container Styles */
.coupon-container {
  margin-bottom: 20px;
  padding: 16px;
  background: #f7fafc;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.coupon-container label {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: #2d3748;
  margin-bottom: 8px;
}

.coupon-container input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.2s ease;
  background: white;
}

.coupon-container input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.coupon-container button {
  margin-top: 12px;
  padding: 12px 24px;
  border: none;
  background: #667eea;
  color: white;
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.coupon-container button:hover {
  background: #5a67d8;
  transform: translateY(-2px);
}

.coupon-container button:active {
  transform: translateY(0);
}

/* Responsive Styling */
@media (max-width: 640px) {
  .coupon-container input,
  .coupon-container button {
    width: 100%;
    font-size: 14px;
  }
}