:root{
  --checkout-bg: #f7f7f7;
  --checkout-card: #fff;
  --checkout-border: var(--am-border, rgba(0,0,0,.12));
  --checkout-text: var(--am-text, #111);
  --checkout-muted: var(--am-muted, #666);
  --checkout-radius: 18px;
  --checkout-shadow: 0 10px 26px rgba(0,0,0,.04);
  --checkout-font: var(--am-font, "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif);
}

body.checkout-body{
  background: var(--checkout-bg);
  color: var(--checkout-text);
}

.checkout{
  padding: clamp(32px, 6vw, 56px) var(--am-pad, 20px) clamp(48px, 7vw, 80px);
  font-family: var(--checkout-font);
}

.checkout__container{
  max-width: var(--am-maxw, 1200px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.9fr);
  gap: clamp(20px, 4vw, 36px);
  align-items: start;
}

.checkout__form-panel,
.checkout__summary{
  background: var(--checkout-card);
  border: 1px solid var(--checkout-border);
  border-radius: var(--checkout-radius);
  box-shadow: var(--checkout-shadow);
  padding: clamp(22px, 3vw, 32px);
}

.checkout__form-panel{
  display: grid;
  gap: clamp(22px, 3vw, 32px);
}

.checkout__summary{
  display: grid;
  gap: 20px;
  position: sticky;
  top: clamp(90px, 12vw, 130px);
}

.checkout__head h1{
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
}

.checkout__head p{
  margin: 0;
  color: var(--checkout-muted);
  line-height: 1.55;
  max-width: 520px;
  font-size: 15px;
}

.checkout-empty{
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px dashed rgba(0,0,0,.12);
  background: #fafafa;
  color: var(--checkout-muted);
}

.checkout-empty a{
  color: var(--c-accent, #0b63ff);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(11,99,255,.3);
  width: max-content;
}

.checkout-form{
  display: grid;
  gap: clamp(24px, 3vw, 34px);
}

.checkout-section{
  display: grid;
  gap: 18px;
}

.checkout-section__title{
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: .01em;
}

.checkout-field{
  display: grid;
  gap: 6px;
}
.checkout-field.has-error .checkout-label{
  color: #b00020;
}
.checkout-field.has-error .checkout-input,
.checkout-field.has-error .checkout-select,
.checkout-field.has-error .checkout-textarea{
  border-color: #b00020;
  box-shadow: 0 0 0 3px rgba(176, 0, 32, 0.18);
}
.checkout-checkbox{
  position: relative;
  display: inline-flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--checkout-text);
  cursor: pointer;
  user-select: none;
}
.checkout-checkbox-list{
  display: grid;
  gap: 12px;
}
.checkout-checkbox__input{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}
.checkout-checkbox__box{
  position: relative;
  width: 22px;
  height: 22px;
  border: 2px solid rgba(0,0,0,.28);
  border-radius: 7px;
  background: #fff;
  display: grid;
  place-items: center;
  transition: border-color .18s ease, background-color .18s ease, box-shadow .18s ease;
  margin-top: 2px;
}
.checkout-checkbox__box::after{
  content: '';
  width: 12px;
  height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -55%) rotate(-45deg) scale(0);
  transition: transform .18s ease;
  transform-origin: center;
}
.checkout-checkbox__label{
  font-size: 15px;
  line-height: 1.4;
}
.checkout-checkbox:hover .checkout-checkbox__box{
  border-color: var(--c-accent, #0b63ff);
}
.checkout-checkbox__input:focus-visible + .checkout-checkbox__box{
  box-shadow: 0 0 0 3px rgba(11,99,255,.24);
  border-color: var(--c-accent, #0b63ff);
}
.checkout-checkbox__input:checked + .checkout-checkbox__box{
  background: var(--c-accent, #0b63ff);
  border-color: var(--c-accent, #0b63ff);
  box-shadow: 0 8px 18px rgba(11,99,255,.18);
}
.checkout-checkbox__input:checked + .checkout-checkbox__box::after{
  transform: translate(-50%, -55%) rotate(-45deg) scale(1);
}
.checkout-trap{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}
.checkout-tabs{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 4px;
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 14px;
  background: rgba(0,0,0,.04);
  margin-bottom: 16px;
}
.checkout-tab{
  flex: 1 1 0;
  border: 0;
  background: transparent;
  padding: 10px 14px;
  border-radius: 10px;
  font: 600 15px/1.4 var(--checkout-font);
  color: var(--checkout-muted);
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, box-shadow .18s ease;
}
.checkout-tab:hover{
  color: var(--checkout-text);
}
.checkout-tab:focus-visible{
  outline: none;
  box-shadow: 0 0 0 3px rgba(11,99,255,.24);
}
.checkout-tab.is-active{
  background: #fff;
  color: var(--checkout-text);
  box-shadow: 0 6px 18px rgba(0,0,0,.08);
}
.checkout-pane-group{
  display: grid;
  gap: 16px;
  margin-bottom: 18px;
}
.checkout-pane{
  display: none;
}
.checkout-pane.is-active{
  display: grid;
  gap: 16px;
}
.checkout-pane__note{
  padding: 16px 18px;
  border-radius: 12px;
  border: 1px dashed rgba(0,0,0,.12);
  background: #f9f9f9;
  color: var(--checkout-muted);
  font-size: 15px;
  line-height: 1.45;
}
.checkout-row.has-error .checkout-input,
.checkout-row.has-error .checkout-select,
.checkout-row.has-error .checkout-textarea{
  border-color: #b00020;
  box-shadow: 0 0 0 3px rgba(176, 0, 32, 0.18);
}

.checkout-label{
  font-size: 15px;
  color: var(--checkout-text);
  letter-spacing: .01em;
}

.checkout-input,
.checkout-select,
.checkout-textarea{
  width: 100%;
  box-sizing: border-box;
  border: 1px solid rgba(0,0,0,.32);
  border-radius: 12px;
  padding: 12px 18px;
  font: 500 15px/1.45 var(--checkout-font);
  color: var(--checkout-text);
  background: #fff;
  transition: border-color .18s ease, box-shadow .18s ease;
}

.checkout-input:focus,
.checkout-select:focus,
.checkout-textarea:focus{
  outline: none;
  border-color: #0b63ff;
  box-shadow: 0 0 0 3px rgba(11,99,255,.18);
}

.checkout-select{
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23111111' d='m1.4.6 4.6 4.6L10.6.6 12 2 6 8 0 2z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 12px 8px;
  padding-right: 48px;
}

.checkout-textarea{
  min-height: 120px;
  padding: 14px 18px;
  resize: vertical;
}

.checkout-row{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.checkout-phone{
  display: grid;
  grid-template-columns: minmax(160px, 240px) minmax(0, 1fr);
  gap: 12px;
}

.checkout-phone select{
  padding-right: 48px;
}

.checkout-hint{
  margin: -4px 0 0;
  font-size: 14px;
  font-style: italic;
  color: var(--checkout-muted);
}

.checkout-radio-group{
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  border: 0;
}

.checkout-radio{
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--checkout-text);
  cursor: pointer;
}

.checkout-radio input{
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid rgba(0,0,0,.4);
  display: grid;
  place-items: center;
}

.checkout-radio input::after{
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #111;
  transform: scale(0);
  transition: transform .15s ease;
}

.checkout-radio input:checked::after{
  transform: scale(1);
}

.checkout-privacy{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--checkout-muted);
}

.checkout-privacy input{
  width: 16px;
  height: 16px;
  border: 1px solid rgba(0,0,0,.35);
}

.checkout-privacy a{
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(0,0,0,.25);
}

.checkout-summary-inline{
  padding-top: 16px;
  border-top: 1px solid rgba(0,0,0,.1);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Ensure native `hidden` always hides even when layout rules set `display:flex`. */
[hidden]{
  display: none !important;
}

.checkout-location{
  font-size: 14px;
  color: var(--checkout-muted);
  font-style: italic;
}

.checkout-total{
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 16px;
  color: var(--checkout-text);
}

.checkout-total strong{
  font-size: 18px;
}

.checkout-actions{
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.checkout-submit{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--checkout-text);
  color: #fff;
  border-radius: 999px;
  border: 1px solid var(--checkout-text);
  padding: 14px 38px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.checkout-submit:hover{
  transform: translateY(-1px);
  box-shadow: 0 18px 32px rgba(0,0,0,.18);
  background: #000;
}

.checkout-msg{
  min-height: 18px;
  font-size: 14px;
  color: var(--checkout-muted);
}

.checkout-msg.success{
  color: #128a3c;
}

.checkout-msg.error{
  color: #b00020;
}

.checkout__summary h2{
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  color: var(--checkout-text);
}

.checkout-empty-state{
  font-size: 15px;
  color: var(--checkout-muted);
  text-align: center;
}

.checkout-items{
  display: grid;
  gap: 16px;
}

.checkout-item{
  border-bottom: 1px solid rgba(0,0,0,.08);
  padding-bottom: 12px;
  display: grid;
  gap: 6px;
}

.checkout-item:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}

.checkout-item__title{
  margin: 0;
  font-weight: 600;
  color: var(--checkout-text);
}

.checkout-item__meta{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
  color: var(--checkout-muted);
}

.checkout-item__availability{
  font-size: 14px;
  font-weight: 600;
  color: #b00020;
}

.checkout-totals{
  margin: 0;
  display: grid;
  gap: 10px;
}

.checkout-totals div{
  display: flex;
  justify-content: space-between;
  font-size: 15px;
}

.checkout-totals dt{
  color: var(--checkout-muted);
}

.checkout-totals dd{
  margin: 0;
  font-weight: 600;
  color: var(--checkout-text);
}

.checkout-field--hidden{
  display: none;
}

.checkout-field--hidden.is-visible{
  display: grid;
  gap: 6px;
}

@media (max-width: 980px){
  .checkout__container{
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .checkout__summary{
    position: static;
    order: -1;
  }
}

@media (max-width: 720px){
  .checkout{
    padding: clamp(24px, 7vw, 40px) clamp(14px, 6vw, 24px);
  }

  .checkout__form-panel,
  .checkout__summary{
    padding: 20px;
  }

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

  .checkout-total{
    font-size: 15px;
  }
}

@media (max-width: 540px){
  .checkout-row{
    grid-template-columns: 1fr;
  }
}