/* Página pública de intercambio (escanear QR) */

.trade-body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-brand-neutral);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  line-height: var(--line-height-base);
}

.trade-shell {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-3);
}

.trade-card {
  background: var(--color-surface-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-default);
  overflow: hidden;
}

.trade-card__head {
  background: linear-gradient(135deg, var(--color-brand-blue) 0%, var(--color-brand-blue-dark) 100%);
  padding: var(--space-6) var(--space-5);
  text-align: center;
  border-bottom: 4px solid var(--color-brand-yellow);
}

.trade-card__logo {
  display: block;
  margin: 0 auto var(--space-3);
  max-height: 56px;
  max-width: 200px;
  width: auto;
  object-fit: contain;
}

.trade-card__logo[hidden] { display: none !important; }

.trade-card__head-fallback {
  display: block;
  margin-bottom: var(--space-3);
  color: #fff;
  font-family: var(--font-family-heading);
  font-weight: 800;
  font-size: 1.3rem;
}

.trade-card__head.has-site-logo .trade-card__head-fallback {
  display: none;
}

.trade-card__title {
  margin: 0;
  color: #fff;
  font-family: var(--font-family-heading);
  font-size: 1.25rem;
  font-weight: 800;
}

.trade-card__body {
  padding: var(--space-5);
}

.trade-loading {
  text-align: center;
  color: var(--color-text-secondary);
  padding: var(--space-6) 0;
}

/* Estado (sin sesión, error, éxito) */
.trade-state {
  text-align: center;
}

.trade-state__icon {
  font-size: 2.4rem;
  margin: 0 0 var(--space-2);
}

.trade-state__title {
  font-family: var(--font-family-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-brand-blue-dark);
  margin: 0 0 var(--space-2);
}

.trade-state__msg {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin: 0 0 var(--space-5);
}

.trade-state__btn {
  display: inline-block;
  text-decoration: none;
  padding: 12px 22px;
}

.trade-state--ok .trade-state__title { color: var(--color-text-success); }

/* Oferta: cromo que se ofrece + lista de opciones del aceptante */
.trade-offer__head {
  font-family: var(--font-family-heading);
  font-weight: 700;
  color: var(--color-brand-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.78rem;
  margin: 0 0 var(--space-3);
  text-align: center;
}

.trade-offer__main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.trade-offer__name {
  margin: 0;
  text-align: center;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.trade-offer__name strong {
  display: block;
  color: var(--color-brand-blue-dark);
  font-family: var(--font-family-heading);
  font-weight: 800;
  font-size: 1.05rem;
}

.trade-thumb {
  position: relative;
  width: 140px;
  aspect-ratio: 350 / 470;
  border-radius: 12px;
  overflow: hidden;
  border: 3px solid var(--color-brand-blue);
  background: var(--color-brand-blue-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(15, 38, 92, 0.22);
}

.trade-thumb--special {
  border-color: var(--color-brand-yellow-dark);
  box-shadow: 0 8px 24px rgba(255, 204, 0, 0.35);
}

.trade-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.trade-thumb__num {
  color: #fff;
  font-family: var(--font-family-heading);
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
}

.trade-warn {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.45);
  color: #92400e;
  padding: var(--space-3) var(--space-4);
  border-radius: 8px;
  margin-bottom: var(--space-4);
  font-size: 0.92rem;
}

.trade-pick-title {
  font-family: var(--font-family-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-brand-blue-dark);
  margin: 0 0 var(--space-3);
}

.trade-pick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.trade-card-pick {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  background: #fff;
  border: 2px solid var(--color-border-default);
  border-radius: 10px;
  padding: 8px;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition: border-color 0.15s ease, transform 0.12s ease, box-shadow 0.18s ease;
}

.trade-card-pick:hover {
  border-color: var(--color-brand-blue);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(15, 38, 92, 0.12);
}

.trade-card-pick.is-picked {
  border-color: var(--color-brand-yellow);
  background: rgba(255, 204, 0, 0.16);
  cursor: progress;
}

.trade-card-pick__slot {
  position: relative;
  width: 100%;
  aspect-ratio: 350 / 470;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid var(--color-brand-blue);
  background: var(--color-brand-blue-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.trade-card-pick__slot--special {
  border-color: var(--color-brand-yellow-dark);
}

.trade-card-pick__slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.trade-card-pick__num {
  color: #fff;
  font-family: var(--font-family-heading);
  font-weight: 800;
  font-size: 1rem;
}

.trade-card-pick__qty {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--color-brand-yellow);
  color: var(--color-brand-blue-dark);
  font-weight: 800;
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 999px;
}

.trade-card-pick__cat {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-brand-blue);
  font-weight: 700;
}

.trade-card-pick__name {
  font-family: var(--font-family-heading);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-brand-blue-dark);
  line-height: 1.2;
  word-break: break-word;
}

/* Intercambio embebido en index.html (ruta /trade servida como login) */
.trade-shell--embedded {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-3);
}

.login-body #auth-shell[hidden],
.login-body #trade-entry-shell[hidden] {
  display: none !important;
}