/* =========================================================
   CHECKOUT PAGE
========================================================= */

.sf-checkout-page {
  padding: var(--sf-space-24) 0 var(--sf-space-40);
}

.sf-checkout-steps {
  display: flex;
  align-items: center;
  gap: var(--sf-space-16);
  margin-bottom: var(--sf-space-32);
}

.sf-checkout-step {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-10);
  min-width: 0;
  color: var(--sf-text-muted);
}

.sf-checkout-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--sf-radius-pill);
  background: var(--sf-grey-02);
  color: var(--sf-text-soft);
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-fw-semibold);
  line-height: 1;
}

.sf-checkout-step__label {
  font-size: var(--sf-text-base);
  font-weight: var(--sf-fw-medium);
  line-height: 1.3;
  white-space: nowrap;
}

.sf-checkout-step--active {
  color: var(--sf-text);
}

.sf-checkout-step--active .sf-checkout-step__number {
  background: var(--sf-primary);
  color: var(--sf-white);
}

.sf-checkout-steps__line {
  flex: 1 1 auto;
  height: 1px;
  min-width: 1rem;
  background: var(--sf-border);
}

/* =========================================================
   LAYOUT
========================================================= */

.sf-checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 21.25rem;
  gap: var(--sf-space-32);
  align-items: start;
}

.sf-checkout-main {
  min-width: 0;
  display: grid;
  gap: var(--sf-space-20);
}

.sf-checkout-sidebar {
  position: sticky;
  top: calc(var(--sf-header-height) + var(--sf-space-8));
}

/* =========================================================
   CARD BLOCKS
========================================================= */

.sf-checkout-card,
.sf-checkout-summary {
  padding: var(--sf-space-20);
  border-radius: var(--sf-radius-xl);
}

.sf-checkout-card__head {
  margin-bottom: var(--sf-space-16);
}

.sf-checkout-card__head--compact {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sf-space-16);
}

.sf-checkout-card__title,
.sf-checkout-summary__title {
  margin: 0;
  color: var(--sf-text);
  font-size: var(--sf-text-xl);
  font-weight: var(--sf-fw-semibold);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.sf-checkout-card__summary {
  margin: var(--sf-space-6) 0 0;
  color: var(--sf-text-soft);
  font-size: var(--sf-text-md);
  line-height: 1.65;
}

/* =========================================================
   FORM
========================================================= */

.sf-checkout-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sf-space-16);
}

.sf-checkout-field {
  display: grid;
  gap: var(--sf-space-6);
}

.sf-checkout-field--full {
  grid-column: 1 / -1;
}

.sf-checkout-field--checkbox {
  display: flex;
  align-items: center;
  gap: var(--sf-space-10);
}

.sf-checkout-field__label {
  color: var(--sf-text);
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-fw-medium);
  line-height: 1.35;
}

.sf-checkout-field__control {
  width: 100%;
  min-height: 2.875rem;
  padding: 0 var(--sf-space-12);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  background: var(--sf-white);
  color: var(--sf-text);
  font: inherit;
  transition:
    border-color var(--sf-transition-fast),
    background var(--sf-transition-fast);
}

.sf-checkout-field__control:focus {
  border-color: var(--sf-primary);
}

.sf-checkout-field__control--textarea {
  min-height: 7rem;
  padding: var(--sf-space-10) var(--sf-space-12);
  resize: vertical;
}

.sf-checkout-field__control.is-disabled {
  background: var(--sf-grey-01);
  opacity: 0.72;
  pointer-events: none;
}

/* =========================================================
   ADDRESS SELECT
========================================================= */

.sf-checkout-address-current {
  display: grid;
  gap: var(--sf-space-12);
}

.sf-address-list--checkout {
  display: grid;
  gap: var(--sf-space-12);
  margin-top: var(--sf-space-14);
}

.sf-address-card--active {
  padding: var(--sf-space-14);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  background: var(--sf-surface);
}

.sf-address-card--selectable {
  display: flex;
  gap: var(--sf-space-12);
  padding: var(--sf-space-14);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  background: var(--sf-surface);
  cursor: pointer;
  transition:
    border-color var(--sf-transition-fast),
    background var(--sf-transition-fast);
}

.sf-address-card--selectable:hover {
  border-color: var(--sf-border-strong);
}

.sf-address-card__body {
  display: grid;
  gap: var(--sf-space-6);
  width: 100%;
}

.sf-address-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sf-space-10);
}

.sf-address-card__title {
  color: var(--sf-text);
  font-size: var(--sf-text-base);
  font-weight: var(--sf-fw-semibold);
  line-height: 1.35;
}

.sf-address-card__text {
  margin: 0;
  color: var(--sf-text-soft);
  font-size: var(--sf-text-md);
  line-height: 1.6;
}

.sf-address-radio {
  display: none;
}

.sf-address-card--selectable:has(.sf-address-radio:checked) {
  border-color: var(--sf-primary);
  background: var(--sf-primary-soft);
}

.sf-address-card--manual {
  opacity: 0.96;
}

.sf-address-actions {
  display: flex;
  align-items: center;
  gap: var(--sf-space-16);
  flex-wrap: wrap;
}

.sf-link-btn {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--sf-primary);
  font-family: var(--font-ui);
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-fw-semibold);
  line-height: 1.4;
  cursor: pointer;
}

.sf-link-btn:hover,
.sf-link-btn:focus-visible {
  text-decoration: underline;
  outline: none;
}

.sf-address-remove {
  border: 0;
  padding: 0;
  background: transparent;
  color: #d84c4c;
  font-family: var(--font-ui);
  font-size: var(--sf-text-xs);
  font-weight: var(--sf-fw-medium);
  line-height: 1.4;
  cursor: pointer;
}

.sf-address-remove:hover,
.sf-address-remove:focus-visible {
  text-decoration: underline;
  outline: none;
}

/* =========================================================
   SUMMARY
========================================================= */

.sf-checkout-summary__title {
  margin-bottom: var(--sf-space-16);
}

.sf-checkout-summary__rows {
  display: grid;
  gap: var(--sf-space-10);
}

.sf-checkout-summary__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sf-space-12);
  color: var(--sf-text);
  font-size: var(--sf-text-md);
  line-height: 1.4;
}

.sf-checkout-summary__row strong {
  font-weight: var(--sf-fw-semibold);
}

.sf-checkout-summary__row--discount {
  color: var(--sf-success-text);
}

.sf-checkout-summary__total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sf-space-12);
  margin-top: var(--sf-space-16);
  padding-top: var(--sf-space-12);
  border-top: 1px solid var(--sf-border);
  color: var(--sf-text);
}

.sf-checkout-summary__total span {
  font-size: var(--sf-text-base);
  font-weight: var(--sf-fw-semibold);
}

.sf-checkout-summary__total strong {
  font-size: var(--sf-text-xl);
  font-weight: var(--sf-fw-bold);
  line-height: 1;
}

.sf-checkout-summary__error {
  margin-top: var(--sf-space-8);
  color: var(--sf-danger-text);
  font-size: var(--sf-text-sm);
  line-height: 1.5;
}

/* =========================================================
   COUPON
========================================================= */

.sf-checkout-coupon {
  margin-top: var(--sf-space-16);
}

.sf-checkout-coupon__head {
  margin-bottom: var(--sf-space-8);
}

.sf-checkout-coupon__label {
  color: var(--sf-text-soft);
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-fw-medium);
}

.sf-checkout-coupon__field {
  display: flex;
  gap: var(--sf-space-8);
}

.sf-checkout-coupon__input {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  height: 2.5rem;
  padding: 0 var(--sf-space-10);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  background: var(--sf-white);
  color: var(--sf-text);
  font-family: var(--font-ui);
  font-size: var(--sf-text-sm);
}

.sf-checkout-coupon__input:focus {
  border-color: var(--sf-primary);
}

.sf-checkout-coupon__apply {
  flex: 0 0 auto;
  height: 2.5rem;
  padding: 0 var(--sf-space-14);
  border: 0;
  border-radius: var(--sf-radius-md);
  background: var(--sf-grey-10);
  color: var(--sf-white);
  font-family: var(--font-ui);
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-fw-semibold);
  cursor: pointer;
  transition:
    transform var(--sf-transition-fast),
    opacity var(--sf-transition-fast);
}

.sf-checkout-coupon__apply:hover,
.sf-checkout-coupon__apply:focus-visible {
  opacity: 0.94;
  transform: translateY(-1px);
  outline: none;
}

/* =========================================================
   CTA
========================================================= */

.sf-checkout-actions {
  margin-top: var(--sf-space-16);
}

.sf-checkout-submit {
  width: 100%;
  min-height: 2.875rem;
}

.sf-checkout-actions--mobile {
  display: none;
}

.sf-checkout-actions--desktop {
  display: block;
}

/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 1080px) {
  .sf-checkout-layout {
    grid-template-columns: 1fr;
  }

  .sf-checkout-sidebar {
    position: static;
    top: auto;
  }
}

@media (max-width: 780px) {
  .sf-checkout-page {
    padding: var(--sf-space-20) 0 var(--sf-space-32);
  }

  .sf-checkout-steps {
    gap: var(--sf-space-8);
    margin-bottom: var(--sf-space-20);
    overflow-x: auto;
  }

  .sf-checkout-step {
    flex: 0 0 auto;
  }

  .sf-checkout-step__label {
    font-size: var(--sf-text-sm);
  }

  .sf-checkout-card,
  .sf-checkout-summary {
    padding: var(--sf-space-16);
    border-radius: var(--sf-radius-lg);
  }

  .sf-checkout-card__head--compact {
    flex-direction: column;
    align-items: flex-start;
  }

  .sf-checkout-form__grid {
    grid-template-columns: 1fr;
  }

  .sf-checkout-field--full {
    grid-column: auto;
  }

  .sf-checkout-coupon__field {
    flex-direction: column;
  }

  .sf-checkout-coupon__apply {
    width: 100%;
  }

  .sf-checkout-actions--desktop {
    display: none;
  }

  .sf-checkout-actions--mobile {
    display: block;
  }
}