*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: #F4F6FA; color: #1A2740; line-height: 1.5; min-height: 100vh;
  display: flex; justify-content: center; padding: 32px 16px;
}
.wrap { width: 100%; max-width: 480px; }
h1 { font-size: 22px; margin-bottom: 20px; }
.step { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
label { font-size: 13px; font-weight: 600; color: #4A5670; }
select, input[type="text"], input[type="date"] {
  background: #fff; border: 1px solid #D5DCE8; border-radius: 8px; padding: 10px 12px; font-size: 14px;
}
.slots-list { display: flex; flex-wrap: wrap; gap: 8px; }
.slot-btn {
  background: #fff; border: 1px solid #D5DCE8; border-radius: 20px; padding: 8px 14px;
  font-size: 13px; cursor: pointer; font-weight: 600; color: #1A2740;
}
.slot-btn:hover, .slot-btn.selected { background: #3B82F6; color: #fff; border-color: #3B82F6; }
.hint { font-size: 13px; color: #7C8AA3; }
button.btn-primary {
  background: #3B82F6; color: #fff; border: none; padding: 12px 18px; border-radius: 8px;
  font-size: 14px; font-weight: 700; cursor: pointer;
}
button.btn-primary:hover { background: #2563EB; }
.err { font-size: 13px; color: #E74C3C; }
.success { text-align: center; font-size: 16px; padding: 24px; background: #fff; border-radius: 10px; }