* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f9fafb;
  color: #1f2937;
  min-height: 100vh;
}
.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 24px;
}
.host_info {
  text-align: center;
  margin-bottom: 24px;
}
.host_info img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin-bottom: 8px;
}
.host_info h2 {
  font-size: 20px;
  color: #111827;
}
.card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s;
}
.card:hover {
  border-color: #3b82f6;
}
.card.selected {
  border-color: #3b82f6;
  background: #eff6ff;
}
.card.no_hover {
  cursor: default;
}
.card.no_hover:hover {
  border-color: transparent;
}
.card h3 {
  font-size: 16px;
  margin-bottom: 4px;
}
.card .meta {
  font-size: 13px;
  color: #6b7280;
}
.card .desc {
  font-size: 14px;
  color: #4b5563;
  margin-top: 8px;
}
.color_dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.step {
  display: none;
}
.step.active {
  display: block;
}
.calendar_grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-top: 12px;
}
.calendar_header {
  text-align: center;
  font-size: 12px;
  color: #6b7280;
  padding: 4px;
  font-weight: 600;
}
.calendar_day {
  text-align: center;
  padding: 8px 4px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.calendar_day:hover {
  background: #eff6ff;
}
.calendar_day.selected {
  background: #3b82f6;
  color: #fff;
}
.calendar_day.disabled {
  color: #d1d5db;
  cursor: default;
}
.calendar_day.disabled:hover {
  background: transparent;
}
.calendar_day.empty {
  cursor: default;
}
.calendar_nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.calendar_nav button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  padding: 4px 8px;
  color: #3b82f6;
}
.calendar_nav span {
  font-weight: 600;
}
.slots_grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
}
.slot {
  padding: 10px;
  text-align: center;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}
.slot:hover {
  border-color: #3b82f6;
  background: #eff6ff;
}
.slot.selected {
  background: #3b82f6;
  color: #fff;
  border-color: #3b82f6;
}
.form_group {
  margin-bottom: 16px;
}
.form_group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 4px;
}
.form_group input,
.form_group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
}
.form_group textarea {
  resize: vertical;
  min-height: 80px;
}
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.btn_primary {
  background: #3b82f6;
  color: #fff;
  width: 100%;
}
.btn_primary:hover {
  background: #2563eb;
}
.btn_primary:disabled {
  background: #93c5fd;
  cursor: not-allowed;
}
.btn_back {
  background: #f3f4f6;
  color: #374151;
  margin-right: 8px;
}
.actions {
  display: flex;
  margin-top: 16px;
}
.loading {
  text-align: center;
  padding: 40px;
  color: #6b7280;
}
.success {
  text-align: center;
  padding: 40px;
}
.success h2 {
  color: #059669;
  margin-bottom: 8px;
}
.success .details {
  background: #f3f4f6;
  padding: 16px;
  border-radius: 8px;
  margin-top: 16px;
  text-align: left;
}
.success .details p {
  margin: 4px 0;
  font-size: 14px;
}
.error {
  color: #dc2626;
  font-size: 13px;
  margin-top: 8px;
}
.no_slots {
  text-align: center;
  padding: 20px;
  color: #6b7280;
  font-size: 14px;
}