/* Detalles de la entrada (checkout). Reusa el header de producto; sin footer. */

.checkout__bar{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.checkout__back{display:flex;align-items:center;justify-content:center;flex:none;width:38px;height:38px;border-radius:var(--radius-pill);background:var(--bg-soft);color:var(--ink-900);text-decoration:none}
.checkout__back:hover{background:var(--line)}
.checkout__title{margin:0;font-size:1.35rem;font-weight:800}

.checkout__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:var(--space-8);align-items:start}
.checkout__side{display:flex;flex-direction:column;gap:20px;min-width:0}

.checkout__buy{padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}

.buy__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.buy__price strong{display:block;font-size:1.5rem;font-weight:800}
.buy__price span{font-size:12.5px;color:var(--muted-500)}
.stepper{display:flex;align-items:center;gap:4px;padding:4px;border:1px solid var(--line);border-radius:var(--radius-pill)}
.stepper__btn{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border:0;border-radius:var(--radius-pill);background:var(--bg-soft);color:var(--ink-900);font:inherit;font-size:17px;font-weight:700;line-height:1;cursor:pointer}
.stepper__btn:hover{background:var(--line)}
.stepper__btn:disabled{opacity:.45;cursor:not-allowed}
.stepper__input{width:46px;border:0;background:transparent;text-align:center;font:inherit;font-size:15px;font-weight:800;color:var(--ink-900);appearance:textfield}
.stepper__input:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:var(--radius-sm)}
.buy__caption{display:block;margin-top:8px;font-size:12px;color:var(--muted-500);text-align:center}

.buy__sector{margin:20px 0 0;font-size:15px;font-weight:800}
.buy__seat{display:flex;align-items:center;gap:8px;margin:8px 0 0;font-size:14px;color:var(--muted-500)}
.buy__seat svg{flex:none;color:var(--brand-600)}

.buy__view{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.buy__view summary{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;cursor:pointer;list-style:none}
.buy__view summary::-webkit-details-marker{display:none}
.buy__view summary::after{content:"";width:8px;height:8px;margin-left:auto;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);transition:transform .18s ease}
.buy__view[open] summary::after{transform:rotate(-135deg)}
.buy__view-body{margin-top:12px}
.buy__view-body img{display:block;width:100%;border-radius:var(--radius-md)}
.buy__view-link{display:inline-block;margin-top:10px;font-size:13px;font-weight:700;color:var(--brand-600);text-decoration:none}
.buy__view-link:hover{text-decoration:underline}

.buy__cta{width:100%;margin-top:18px;border-radius:var(--radius-pill)}

.buy__login{margin:18px 0 0;padding:16px 0 0;border:0;border-top:1px solid var(--line)}
.buy__login-title{padding:0;font-size:13px;font-weight:800;color:var(--ink-900)}
.buy__login-field{display:block;margin:12px 0 0}
.buy__login-field span{display:block;margin-bottom:6px;font-size:12.5px;font-weight:700;color:var(--muted-500)}
.buy__login-field input{width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:var(--radius-md);background:var(--surface);font-family:inherit;font-size:15px;color:var(--ink-900)}
.buy__login-field input:focus-visible{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand-600) 18%,transparent)}
.buy__login-hint{margin:10px 0 0;font-size:12px;line-height:1.45;color:var(--muted-500)}

.offer-info{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.offer-info summary{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;cursor:pointer;list-style:none}
.offer-info summary::-webkit-details-marker{display:none}
.offer-info summary::after{content:"";width:8px;height:8px;margin-left:auto;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);transition:transform .18s ease}
.offer-info[open] summary::after{transform:rotate(-135deg)}
.offer-info__list{margin:12px 0 0;padding:0}
.offer-info__row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;font-size:13.5px}
.offer-info__row+.offer-info__row{border-top:1px solid var(--line)}
.offer-info__row dt{color:var(--muted-500)}
.offer-info__row dd{margin:0;font-weight:700;text-align:right}

.checkout__seller-title{margin:0 0 12px;font-size:1.05rem;font-weight:800}

@media(max-width:900px){
  .checkout__grid{grid-template-columns:minmax(0,1fr);gap:var(--space-6)}
}
@media(max-width:520px){
  .checkout__title{font-size:1.15rem}
  .checkout__buy{padding:18px}
  .buy__head{flex-direction:column}
}