:root { --z-chat: 850; }
/* Carrito, pago, avisos, chat y ventana de salida (extraído de la web anterior, con tokens v2) */
#toast {
      position: fixed; bottom: 32px; left: 50%; z-index: var(--z-toast);
      transform: translateX(-50%) translateY(120px);
      background: var(--surface2);
      border: 1px solid var(--border);
      color: var(--text);
      font-size: .85rem;
      font-family: var(--font-mono);
      padding: 12px 24px;
      border-radius: 8px;
      box-shadow: 0 8px 32px #0008;
      transition: transform .4s var(--ease), opacity .4s;
      opacity: 0;
      pointer-events: none;
      white-space: nowrap;
    }
#toast.show {
      transform: translateX(-50%) translateY(0);
      opacity: 1;
    }
.cart-btn {
      position: relative; display: flex; align-items: center; justify-content: center;
      width: 42px; height: 42px; border-radius: 8px;
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--text); transition: all .25s;
    }
.cart-btn:hover { border-color: var(--accent); color: var(--accent); }
.cart-badge {
      position: absolute; top: -6px; right: -6px;
      width: 18px; height: 18px; border-radius: 50%;
      background: var(--accent); color: #141210;
      font-size: .65rem; font-weight: 700; font-family: var(--font-mono);
      display: flex; align-items: center; justify-content: center;
      opacity: 0; transform: scale(0);
      transition: all .3s var(--ease);
    }
.cart-badge.show { opacity: 1; transform: scale(1); animation: badgePop .3s var(--ease); }
#cart-overlay {
      position: fixed; inset: 0; z-index: var(--z-overlay);
      background: rgba(0,0,0,.6);
      backdrop-filter: blur(4px);
      opacity: 0; pointer-events: none;
      transition: opacity .35s;
    }
#cart-overlay.open { opacity: 1; pointer-events: all; }
#cart-drawer {
      position: fixed; top: 0; right: 0; bottom: 0; z-index: calc(var(--z-overlay) + 1);
      width: 420px; max-width: 95vw;
      background: rgba(17,17,17,.92);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border-left: 1px solid var(--border);
      display: flex; flex-direction: column;
      transform: translateX(100%);
      transition: transform .4s var(--ease);
    }
#cart-drawer.open { transform: none; }
.cart-header {
      display: flex; align-items: center; justify-content: space-between;
      padding: 24px 28px;
      border-bottom: 1px solid var(--border);
    }
.cart-title {
      font-family: var(--font-disp); font-size: 1.1rem; font-weight: 700;
    }
.cart-close {
      width: 36px; height: 36px; border-radius: var(--radius);
      border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
      color: var(--muted); font-size: 1.2rem; transition: all .25s;
    }
.cart-close:hover { border-color: var(--accent); color: var(--accent); }
.cart-items { flex: 1; overflow-y: auto; padding: 20px 28px; display: flex; flex-direction: column; gap: 12px; }
.cart-empty {
      display: flex; flex-direction: column; align-items: center; justify-content: center;
      gap: 12px; height: 100%; color: var(--muted); text-align: center;
    }
.cart-empty svg { opacity: .3; }
.cart-item {
      display: flex; align-items: center; gap: 12px;
      padding: 14px 16px; border-radius: var(--radius);
      background: var(--surface2); border: 1px solid var(--border);
    }
.cart-item-info { flex: 1; }
.cart-item-name { font-weight: 600; font-size: .92rem; margin-bottom: 2px; }
.cart-item-price { font-family: var(--font-mono); font-size: .8rem; color: var(--accent); }
.cart-item-tag { font-family: var(--font-mono); font-size: .72rem; color: var(--muted); }
.cart-remove {
      width: 28px; height: 28px; border-radius: 6px;
      border: 1px solid var(--border); color: var(--muted);
      display: flex; align-items: center; justify-content: center;
      font-size: .9rem; transition: all .25s;
    }
.cart-remove:hover { border-color: #ff4455; color: #ff4455; }
.cart-footer {
      padding: 20px 28px;
      border-top: 1px solid var(--border);
    }
.cart-total-row {
      display: flex; justify-content: space-between; align-items: center;
      margin-bottom: 16px;
    }
.cart-total-label { font-size: .9rem; color: var(--muted); }
.cart-total-price { font-family: var(--font-mono); font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.cart-checkout-btn {
      width: 100%; padding: 15px; border-radius: 8px;
      background: var(--accent); color: #141210;
      font-weight: 700; font-size: .95rem;
      transition: background .25s, transform .25s;
    }
.cart-checkout-btn:hover { background: var(--accent-h); transform: translateY(-1px); }
.cart-checkout-btn:disabled { opacity: .4; pointer-events: none; }
#checkout-modal {
      position: fixed; inset: 0; z-index: var(--z-modal);
      background: rgba(0,0,0,.85);
      backdrop-filter: blur(8px);
      display: flex; align-items: center; justify-content: center;
      padding: 24px;
      opacity: 0; pointer-events: none;
      transition: opacity .35s;
    }
#checkout-modal.open { opacity: 1; pointer-events: all; }
.checkout-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      width: 100%; max-width: 520px;
      max-height: 90vh; overflow-y: auto;
      padding: 36px;
      position: relative;
    }
.checkout-close {
      position: absolute; top: 20px; right: 20px;
      width: 36px; height: 36px; border-radius: var(--radius);
      border: 1px solid var(--border);
      color: var(--muted); font-size: 1.2rem;
      display: flex; align-items: center; justify-content: center;
      transition: all .25s;
    }
.checkout-close:hover { border-color: var(--accent); color: var(--accent); }
.step-dots {
      display: flex; gap: 8px; margin-bottom: 28px;
    }
.step-dot {
      height: 4px; border-radius: 2px;
      background: var(--border);
      transition: all .4s var(--ease);
      flex: 1;
    }
.step-dot.active { background: var(--accent); flex: 2; }
.checkout-step { display: none; }
.checkout-step.active { display: block; }
.checkout-title {
      font-family: var(--font-disp); font-size: 1.5rem; font-weight: 800;
      margin-bottom: 6px;
    }
.checkout-sub { font-size: .9rem; color: var(--muted); margin-bottom: 28px; }
.checkout-summary {
      background: var(--surface2); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 16px; margin-bottom: 24px;
    }
.checkout-summary-item {
      display: flex; justify-content: space-between;
      font-size: .88rem; padding: 6px 0;
      border-bottom: 1px solid var(--border);
    }
.checkout-summary-item:last-child { border: none; }
.checkout-summary-total {
      display: flex; justify-content: space-between;
      font-family: var(--font-mono); font-weight: 700;
      color: var(--accent); padding-top: 10px; font-size: 1rem;
    }
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: .82rem; font-weight: 600; color: var(--muted); margin-bottom: 7px; letter-spacing: .04em; text-transform: uppercase; }
.form-input {
      width: 100%; padding: 13px 16px;
      background: var(--surface2); border: 1px solid var(--border);
      border-radius: var(--radius); color: var(--text); font-size: .9rem;
      transition: border-color .25s, box-shadow .25s;
      outline: none;
    }
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(93,184,148,.1); }
.checkout-next-btn {
      width: 100%; padding: 15px; border-radius: 8px;
      background: var(--accent); color: #141210;
      font-weight: 700; font-size: .95rem;
      transition: background .25s, transform .25s;
      margin-top: 8px;
    }
.checkout-next-btn:hover { background: var(--accent-h); transform: translateY(-1px); }
.success-screen {
      text-align: center; padding: 20px 0;
    }
.success-icon {
      width: 72px; height: 72px; border-radius: 50%;
      background: rgba(93,184,148,.1); border: 2px solid var(--accent);
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 24px;
      font-size: 2rem; color: var(--accent);
    }
.success-title { font-family: var(--font-disp); font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.success-sub { color: var(--muted); line-height: 1.7; margin-bottom: 28px; }
.form-input-contact {
      width: 100%; padding: 13px 16px;
      background: var(--surface2); border: 1px solid var(--border);
      border-radius: var(--radius); color: var(--text); font-size: .9rem;
      transition: border-color .25s, box-shadow .25s; outline: none;
      margin-bottom: 16px;
    }
.form-input-contact:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(93,184,148,.1); }
@media (max-width: 768px) {
  .checkout-card { padding: 28px 22px; }
  .form-input, .form-input-contact { font-size: 16px; }
  .cart-btn { width: 44px; height: 44px; }
  .cart-close { width: 44px; height: 44px; }
  .checkout-close { width: 44px; height: 44px; }
  .cart-remove { width: 44px; height: 44px; }
}
@media (max-width: 480px) {
  .checkout-card { padding: 24px 16px; border-radius: var(--radius); }
  #toast { width: calc(100vw - 32px); white-space: normal; text-align: center; font-size: .8rem; }
  #cart-drawer { max-width: 100%; }
  .cart-items { padding: 16px; }
}
@media (max-width:480px) {
  #exit-box { padding:36px 24px; }
}
@media (max-width: 1024px) {
  .cart-btn:active             { transform: scale(0.88) !important; transition: transform .08s ease !important; }
  .checkout-next-btn:active    { transform: scale(0.97) !important; transition: transform .08s ease !important; }
  .cart-checkout-btn:active    { transform: scale(0.97) !important; }
}
@media (max-width: 1024px) {
  #toast     { bottom: max(32px, calc(env(safe-area-inset-bottom) + 20px)); }
}
@media (max-width: 480px) {
  #cart-drawer, #mobile-overlay { -webkit-overflow-scrolling: touch; scroll-behavior: smooth; }
}
@media (max-width: 480px) {
  #cart-drawer {
        top: auto !important;
        bottom: 0; left: 0; right: 0;
        width: 100% !important; max-width: 100% !important;
        max-height: 88svh;
        border-left: none !important;
        border-top: 1px solid var(--border);
        border-radius: 20px 20px 0 0 !important;
        transform: translateY(100%) !important;
        transition: transform .4s cubic-bezier(.32,0,.67,0) !important;
      }
  #cart-drawer.open {
        transform: translateY(0) !important;
        transition: transform .5s cubic-bezier(.34,1.56,.64,1) !important;
      }
  .cart-header {
        padding: 20px 20px 16px;
        position: relative;
      }
  .cart-header::before {
        content: '';
        position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
        width: 36px; height: 4px; border-radius: 2px;
        background: var(--border);
      }
  #cart-overlay { background: rgba(0,0,0,.5); }
}
#exit-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:calc(var(--z-modal) + 1);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;visibility:hidden;transition:opacity .35s,visibility 0s .35s}
#exit-overlay.visible{opacity:1;pointer-events:all;visibility:visible;transition:opacity .35s,visibility 0s}
#exit-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:48px 44px;max-width:460px;width:90%;position:relative;text-align:center;transform:translateY(20px);transition:transform .35s}
#exit-overlay.visible #exit-box{transform:translateY(0)}
#exit-close{position:absolute;top:16px;right:18px;background:none;border:none;color:var(--muted);font-size:1.2rem;cursor:pointer;line-height:1;padding:4px}
#exit-close:hover{color:var(--text)}
.exit-badge{display:inline-block;font-family:var(--font-mono);font-size:.65rem;letter-spacing:.14em;color:var(--accent);background:rgba(93,184,148,.1);border:1px solid rgba(93,184,148,.25);border-radius:100px;padding:5px 14px;margin-bottom:20px}
.exit-title{font-family:var(--font-disp);font-size:1.45rem;font-weight:800;line-height:1.2;margin-bottom:12px}
.exit-desc{font-size:.9rem;color:var(--muted);line-height:1.7;margin-bottom:28px}
.exit-cta{display:flex;justify-content:center;gap:8px;background:var(--accent);color:#141210;border-radius:var(--radius);padding:13px 24px;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;font-weight:700;text-decoration:none}
.exit-cta:hover{opacity:.88}
.exit-note{font-family:var(--font-mono);font-size:.68rem;color:var(--muted);margin-top:14px;text-align:center}

@keyframes badgePop {
      0%   { transform: scale(0); }
      70%  { transform: scale(1.3); }
      100% { transform: scale(1); }
    }

/* Paneles cerrados fuera del orden de Tab (visibility con retardo para no cortar la animación) */
#cart-overlay { visibility: hidden; transition-property: opacity, visibility; transition-duration: .35s, 0s; transition-delay: 0s, .35s; }
#cart-overlay.open { visibility: visible; transition-delay: 0s, 0s; }
#cart-drawer { visibility: hidden; transition-property: transform, visibility; transition-duration: .4s, 0s; transition-delay: 0s, .4s; transition-timing-function: var(--ease), linear; }
#cart-drawer.open { visibility: visible; transition-delay: 0s, 0s; }
#checkout-modal { visibility: hidden; transition-property: opacity, visibility; transition-duration: .35s, 0s; transition-delay: 0s, .35s; }
#checkout-modal.open { visibility: visible; transition-delay: 0s, 0s; }

/* ── Motion del carrito: ficha que vuela al nav, filas que entran en cascada, marco de selección en lo recién agregado ── */
.cart-fly {
  position: fixed; left: 0; top: 0; z-index: calc(var(--z-progress) + 1); pointer-events: none;
  padding: 7px 12px; border-radius: 999px; background: var(--accent); color: #141210;
  font: 700 .7rem/1 var(--font-mono); letter-spacing: .04em; white-space: nowrap;
  box-shadow: 0 10px 28px -8px rgba(93,184,148,.6);
}
.cart-btn.caught { border-color: var(--accent); color: var(--accent); }
.cart-item.leaving { overflow: hidden; pointer-events: none; }
@media (prefers-reduced-motion: no-preference) {
  #cart-drawer.open .cart-items:not(.quiet) .cart-item { animation: cartRowIn .5s var(--ease) calc(.16s + var(--i, 0) * 60ms) both; }
  .cart-item.is-new { position: relative; }
  .cart-item.is-new::before, .cart-item.is-new::after { content: ""; position: absolute; pointer-events: none; opacity: 0; }
  .cart-item.is-new::before { inset: -1px; border: 1px solid var(--accent); border-radius: inherit; background: var(--accent-soft); }
  .cart-item.is-new::after {
    inset: -5px;
    background:
      linear-gradient(var(--bg), var(--bg)) 1px 1px / 6px 6px no-repeat,
      linear-gradient(var(--bg), var(--bg)) calc(100% - 1px) 1px / 6px 6px no-repeat,
      linear-gradient(var(--bg), var(--bg)) 1px calc(100% - 1px) / 6px 6px no-repeat,
      linear-gradient(var(--bg), var(--bg)) calc(100% - 1px) calc(100% - 1px) / 6px 6px no-repeat,
      linear-gradient(var(--accent), var(--accent)) 0 0 / 8px 8px no-repeat,
      linear-gradient(var(--accent), var(--accent)) 100% 0 / 8px 8px no-repeat,
      linear-gradient(var(--accent), var(--accent)) 0 100% / 8px 8px no-repeat,
      linear-gradient(var(--accent), var(--accent)) 100% 100% / 8px 8px no-repeat;
  }
  #cart-drawer.open .cart-item.is-new::before, #cart-drawer.open .cart-item.is-new::after {
    animation: cartSelIn .28s var(--ease) calc(.36s + var(--i, 0) * 60ms) forwards, cartSelOut .5s ease calc(1.9s + var(--i, 0) * 60ms) forwards;
  }
  .add-cart-btn.added { background: linear-gradient(var(--accent), var(--accent)) no-repeat 0 0 / 100% 100%; animation: addFill .42s var(--ease) both; }
  .cart-empty { animation: cartRowIn .5s var(--ease) .1s both; }
}
@keyframes cartRowIn { from { opacity: 0; transform: translateX(28px); } }
@keyframes cartSelIn { from { opacity: 0; transform: scale(1.03); } to { opacity: 1; transform: none; } }
@keyframes cartSelOut { from { opacity: 1; } to { opacity: 0; } }
@keyframes addFill { from { background-size: 0% 100%; } }
/* Con el carrito abierto el aviso sobra (y en móvil tapaba "Proceder al pago"); sigue anunciándose por aria-live */
body:has(#cart-drawer.open) #toast { opacity: 0; pointer-events: none; }