.kiak-app {
  --kiak-primary: #FF751F;
  --kiak-primary-hover: #E86210;
  --kiak-primary-light: #FF9D61;
  --kiak-deep: #211A16;
  --kiak-soft: #FFF3EB;
  --kiak-text: #392F29;
  --kiak-muted: #776B64;
  --kiak-border: #EEDCD0;
}

.kiak-app,
.kiak-app * {
  box-sizing: border-box;
}

.kiak-app {
  width: min(100%, 820px);
  margin: 40px auto;
  padding: clamp(22px, 5vw, 56px);
  border: 1px solid var(--kiak-border);
  border-radius: 24px;
  background: #fff;
  color: var(--kiak-text);
  box-shadow: 0 22px 70px rgba(50, 31, 18, .1);
  font-family: inherit;
}

.kiak-progress {
  position: relative;
  height: 5px;
  margin-bottom: 56px;
  border-radius: 10px;
  background: var(--kiak-soft);
}

.kiak-progress__bar {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--kiak-primary), var(--kiak-primary-light));
  transition: width .25s ease;
}

.kiak-progress > span {
  position: absolute;
  top: 12px;
  right: 0;
  color: var(--kiak-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.kiak-step {
  display: none;
}

.kiak-step.is-active {
  display: block;
  animation: kiakIn .25s ease both;
}

@keyframes kiakIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.kiak-eyebrow {
  margin: 0 0 10px;
  color: var(--kiak-primary-hover);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.kiak-app h2 {
  margin: 0;
  color: var(--kiak-deep);
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.06;
  letter-spacing: -.035em;
}

.kiak-lead {
  max-width: 610px;
  margin: 16px 0 32px;
  color: var(--kiak-muted);
  font-size: 17px;
  line-height: 1.6;
}

.kiak-counter {
  display: grid;
  grid-template-columns: 58px 1fr 58px;
  align-items: stretch;
  max-width: 480px;
  margin: 32px auto 24px;
  overflow: hidden;
  border: 1px solid var(--kiak-border);
  border-radius: 18px;
  background: var(--kiak-soft);
}

.kiak-counter button {
  border: 0;
  background: #fff;
  color: var(--kiak-primary-hover);
  font-size: 30px;
  font-weight: 600;
  cursor: pointer;
}

.kiak-counter button:hover {
  background: #FFF9F5;
}

.kiak-counter button:focus-visible,
.kiak-primary:focus-visible,
.kiak-secondary:focus-visible,
.kiak-counter input:focus-visible {
  outline: 3px solid rgba(255, 117, 31, .35);
  outline-offset: -3px;
}

.kiak-counter > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px;
}

.kiak-app .kiak-counter input[type="number"] {
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--kiak-deep);
  box-shadow: none;
  font: inherit;
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  appearance: textfield;
}

.kiak-counter input::-webkit-inner-spin-button {
  appearance: none;
}

.kiak-counter span {
  margin-top: 6px;
  color: var(--kiak-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.kiak-price-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  overflow: hidden;
  margin: 0 0 14px;
  border: 1px solid var(--kiak-border);
  border-radius: 16px;
  background: var(--kiak-border);
}

.kiak-price-card > div {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 20px;
  background: #fff;
}

.kiak-price-card span {
  color: var(--kiak-muted);
  font-size: 13px;
}

.kiak-price-card strong {
  color: var(--kiak-deep);
  font-size: 24px;
}

.kiak-tier-note {
  margin: 0 0 28px;
  padding: 13px 16px;
  border-radius: 10px;
  background: var(--kiak-soft);
  color: #9E430C;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}

.kiak-summary {
  margin: 28px 0 0;
  overflow: hidden;
  border: 1px solid var(--kiak-border);
  border-radius: 16px;
}

.kiak-summary__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 20px;
}

.kiak-summary__row > span {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kiak-summary__row strong {
  color: var(--kiak-deep);
}

.kiak-summary__row small {
  color: var(--kiak-muted);
}

.kiak-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 18px 0 8px;
  padding: 20px;
  border-radius: 14px;
  background: var(--kiak-deep);
  color: #fff;
}

.kiak-total strong {
  font-size: 30px;
}

.kiak-tax-note {
  margin: 0 0 24px;
  color: var(--kiak-muted);
  font-size: 12px;
  text-align: right;
}

.kiak-actions {
  display: flex;
  gap: 12px;
}

.kiak-primary,
.kiak-secondary {
  min-height: 54px;
  padding: 14px 22px;
  border-radius: 10px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: .2s ease;
}

.kiak-primary {
  flex: 1;
  border: 1px solid var(--kiak-primary);
  background: var(--kiak-primary);
  color: var(--kiak-deep);
}

.kiak-primary:hover {
  border-color: var(--kiak-primary-hover);
  background: var(--kiak-primary-hover);
  color: #fff;
  transform: translateY(-1px);
}

.kiak-primary:disabled {
  opacity: .65;
  cursor: wait;
  transform: none;
}

.kiak-secondary {
  border: 1px solid var(--kiak-border);
  background: #fff;
  color: var(--kiak-primary-hover);
}

.kiak-secondary:hover {
  border-color: var(--kiak-primary);
  background: var(--kiak-soft);
}

.kiak-error {
  margin: 14px 0;
  padding: 14px;
  border-radius: 10px;
  background: #FFF0F0;
  color: #9C2424;
  font-size: 14px;
  font-weight: 700;
}

.kiak-locked-quantity {
  font-weight: 700;
}

@media (max-width: 640px) {
  .kiak-app {
    margin: 16px auto;
    padding: 22px 18px 24px;
    border-radius: 18px;
  }

  .kiak-progress { margin-bottom: 48px; }
  .kiak-app h2 { font-size: 31px; }
  .kiak-lead { margin-bottom: 24px; font-size: 15px; }
  .kiak-counter { grid-template-columns: 52px 1fr 52px; }
  .kiak-price-card { grid-template-columns: 1fr; }
  .kiak-actions { flex-direction: column-reverse; }
  .kiak-primary, .kiak-secondary { width: 100%; }
  .kiak-summary__row { align-items: flex-start; padding: 16px; }
  .kiak-total { padding: 17px; }
  .kiak-total strong { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .kiak-step.is-active { animation: none; }
  .kiak-progress__bar,
  .kiak-primary,
  .kiak-secondary { transition: none; }
}