/* ═══════════════════════════════════════════════════
   Tienda / Librería — Ariadna Vásquez Germán
   Usa los tokens de color de style.css (:root)
   ═══════════════════════════════════════════════════ */

/* ── Sección ── */
.section-libreria {
  padding: 8rem 8vw;
  background: var(--parchment);
  position: relative;
}
.libreria-header { max-width: 1200px; margin: 0 auto 3.5rem; }
.libreria-title {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.05;
  color: var(--ink);
}
.libreria-title em { font-style: italic; color: var(--gold); }
.libreria-intro {
  margin-top: 1rem;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--charcoal);
  max-width: 560px;
}

/* ── Grid de libros ── */
.tienda-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2.5rem;
}
.tienda-empty, .tienda-loading {
  grid-column: 1 / -1;
  color: var(--mist);
  font-style: italic;
  font-size: 1.05rem;
}

.tienda-card {
  display: flex;
  flex-direction: column;
  background: var(--cream);
  border: 1px solid rgba(184,151,90,.18);
  transition: transform .35s cubic-bezier(.16,1,.3,1), box-shadow .35s;
}
.tienda-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(26,20,16,.12); }

.tienda-cover-wrap {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--charcoal);
}
.tienda-cover { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.16,1,.3,1); }
.tienda-card:hover .tienda-cover { transform: scale(1.05); }
.tienda-cover-empty {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: var(--mist); font-family: "Cormorant Garamond", serif; font-style: italic; font-size: 1.1rem;
}
.tienda-flag {
  position: absolute; top: 1rem; left: 0;
  background: var(--gold); color: var(--ink);
  font-family: "Marcellus", serif; font-size: .6rem; letter-spacing: .2em; text-transform: uppercase;
  padding: .35rem .9rem;
}
.tienda-flag.agotado { background: var(--charcoal); color: var(--cream); }

.tienda-body { padding: 1.5rem 1.5rem 1.75rem; display: flex; flex-direction: column; flex: 1; }
.tienda-titulo {
  font-family: "Cormorant Garamond", serif;
  font-size: 1.45rem; font-weight: 400; line-height: 1.2; color: var(--ink);
}
.tienda-desc {
  margin-top: .6rem; font-size: .92rem; line-height: 1.6; color: var(--mist);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.tienda-foot { margin-top: auto; padding-top: 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.tienda-precio { font-family: "Cormorant Garamond", serif; font-size: 1.6rem; color: var(--gold); }

.btn-add {
  font-family: "Marcellus", serif; font-size: .68rem; letter-spacing: .18em; text-transform: uppercase;
  background: var(--ink); color: var(--cream); border: 1px solid var(--ink);
  padding: .7rem 1.1rem; cursor: pointer; transition: background .25s, color .25s;
}
.btn-add:hover { background: var(--gold); border-color: var(--gold); color: var(--ink); }
.btn-add:disabled { background: transparent; color: var(--mist); border-color: rgba(138,125,110,.4); cursor: not-allowed; }

/* ── Botón flotante del carrito ── */
.cart-fab {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 60;
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--ink); color: var(--cream); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px rgba(26,20,16,.3);
  transition: transform .25s, background .25s;
}
.cart-fab:hover { background: var(--gold); color: var(--ink); transform: scale(1.06); }
.cart-fab svg { width: 24px; height: 24px; }
.cart-count {
  position: absolute; top: -4px; right: -4px;
  min-width: 22px; height: 22px; padding: 0 5px; border-radius: 999px;
  background: var(--gold); color: var(--ink);
  font-family: "EB Garamond", serif; font-size: .75rem; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
.cart-fab.is-empty .cart-count { display: none; }

/* ── Drawer / panel del carrito ── */
.cart-overlay {
  position: fixed; inset: 0; z-index: 70;
  background: rgba(26,20,16,.5); opacity: 0; visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.cart-overlay.is-open { opacity: 1; visibility: visible; }

.cart-panel {
  position: fixed; top: 0; right: 0; z-index: 80;
  width: min(440px, 100%); height: 100%;
  background: var(--cream); color: var(--ink);
  display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform .4s cubic-bezier(.16,1,.3,1);
  box-shadow: -20px 0 50px rgba(26,20,16,.2);
}
.cart-panel.is-open { transform: translateX(0); }

.cart-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.75rem 2rem; border-bottom: 1px solid rgba(184,151,90,.2);
}
.cart-head h3 { font-family: "Cormorant Garamond", serif; font-weight: 300; font-size: 1.6rem; }
.cart-head h3 em { font-style: italic; color: var(--gold); }
.cart-close { background: none; border: none; font-size: 1.5rem; color: var(--mist); cursor: pointer; line-height: 1; transition: color .2s; }
.cart-close:hover { color: var(--ink); }

.cart-items { flex: 1; overflow-y: auto; padding: 1.5rem 2rem; }
.cart-empty { color: var(--mist); font-style: italic; text-align: center; margin-top: 3rem; }

.cart-item { display: flex; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid rgba(184,151,90,.15); }
.cart-item-cover { width: 54px; height: 78px; object-fit: cover; flex-shrink: 0; background: var(--charcoal); }
.cart-item-body { flex: 1; min-width: 0; }
.cart-item-titulo { font-family: "Cormorant Garamond", serif; font-size: 1.15rem; line-height: 1.2; }
.cart-item-precio { color: var(--gold); font-size: .95rem; margin-top: .2rem; }
.cart-qty { display: flex; align-items: center; gap: .6rem; margin-top: .6rem; }
.cart-qty button {
  width: 26px; height: 26px; border: 1px solid rgba(184,151,90,.4); background: transparent;
  color: var(--ink); cursor: pointer; font-size: 1rem; line-height: 1; transition: background .2s;
}
.cart-qty button:hover { background: var(--gold); color: var(--cream); }
.cart-qty span { min-width: 1.5rem; text-align: center; }
.cart-item-remove { background: none; border: none; color: var(--mist); cursor: pointer; font-size: .82rem; align-self: flex-start; text-decoration: underline; }
.cart-item-remove:hover { color: #c0392b; }

.cart-foot { border-top: 1px solid rgba(184,151,90,.2); padding: 1.5rem 2rem 2rem; }
.cart-line { display: flex; justify-content: space-between; font-size: .95rem; color: var(--charcoal); margin-bottom: .5rem; }
.cart-line.total { font-size: 1.25rem; color: var(--ink); margin-top: .75rem; padding-top: .75rem; border-top: 1px solid rgba(184,151,90,.2); }
.cart-line.total span:last-child { color: var(--gold); font-family: "Cormorant Garamond", serif; }
.cart-note { font-size: .8rem; color: var(--mist); margin-bottom: 1rem; }

.btn-checkout {
  width: 100%; padding: 1rem;
  font-family: "Marcellus", serif; font-size: .75rem; letter-spacing: .2em; text-transform: uppercase;
  background: var(--ink); color: var(--cream); border: none; cursor: pointer; transition: background .25s, color .25s;
}
.btn-checkout:hover { background: var(--gold); color: var(--ink); }
.btn-checkout:disabled { opacity: .4; cursor: not-allowed; }

/* ── Checkout (formulario de envío) ── */
.checkout-view { display: none; flex-direction: column; flex: 1; min-height: 0; }
.checkout-view.is-active { display: flex; }
.cart-items.is-hidden { display: none; }

.co-form { display: flex; flex-direction: column; gap: 1rem; }
.co-field label { display: block; font-family: "Marcellus", serif; font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--mist); margin-bottom: .35rem; }
.co-field input, .co-field textarea {
  width: 100%; padding: .7rem .85rem;
  background: var(--cream); border: 1px solid rgba(184,151,90,.35); color: var(--ink);
  font-family: "EB Garamond", serif; font-size: 1rem; outline: none; transition: border-color .2s;
}
.co-field input:focus, .co-field textarea:focus { border-color: var(--gold); }
.co-row { display: flex; gap: 1rem; }
.co-row .co-field { flex: 1; }
.co-hp { position: absolute; left: -9999px; }   /* honeypot */

.co-pay { margin-top: .5rem; }
.co-pay-label { font-family: "Marcellus", serif; font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--mist); margin-bottom: .6rem; }
.co-pay-opts { display: flex; flex-direction: column; gap: .6rem; }
.co-pay-opt {
  display: flex; align-items: center; gap: .7rem; padding: .8rem 1rem;
  border: 1px solid rgba(184,151,90,.35); cursor: pointer; transition: border-color .2s, background .2s;
}
.co-pay-opt:hover { border-color: var(--gold); }
.co-pay-opt input { accent-color: var(--gold); }
.co-pay-opt.is-disabled { opacity: .45; cursor: not-allowed; }
.co-pay-opt .co-pay-name { font-size: .98rem; }
.co-pay-opt .co-pay-tag { margin-left: auto; font-size: .72rem; color: var(--mist); }

.co-back { background: none; border: none; color: var(--mist); cursor: pointer; font-size: .85rem; text-decoration: underline; margin-bottom: 1rem; align-self: flex-start; }
.co-back:hover { color: var(--ink); }
.co-msg { margin-top: 1rem; padding: .7rem 1rem; font-size: .9rem; border-left: 2px solid transparent; }
.co-msg.error { border-color: #c0392b; color: #c0392b; background: rgba(192,57,43,.07); }

/* ── Confirmación ── */
.co-success { text-align: center; padding: 3rem 2rem; }
.co-success-icon { font-size: 2.5rem; color: var(--gold); }
.co-success h3 { font-family: "Cormorant Garamond", serif; font-weight: 300; font-size: 1.8rem; margin: 1rem 0 .5rem; }
.co-success h3 em { font-style: italic; color: var(--gold); }
.co-success p { color: var(--charcoal); line-height: 1.7; }
.co-success .codigo { font-family: "Marcellus", serif; letter-spacing: .15em; color: var(--gold); font-size: 1.1rem; margin-top: 1rem; }

@media (max-width: 600px) {
  .section-libreria { padding: 5rem 6vw; }
  .co-row { flex-direction: column; gap: 1rem; }
}