/* Shared styles for the bundle/combo widgets (books/combo.html's own page,
   and the same widget embedded again at the bottom of books/index.html). */
.combo-hero-wrap { max-width: 900px; margin: 50px auto 0; padding: 0 20px; }
.combo-card {
    background: linear-gradient(160deg, #102a3a 0%, #0d3826 100%);
    border-radius: 18px; padding: 34px 32px; color: #fff; position: relative;
    overflow: hidden; margin-bottom: 30px; border: 2px solid transparent;
}
.combo-card.combo-card--mega { border-color: var(--deep-red); }
.combo-ribbon {
    position: absolute; top: 18px; right: -38px; background: var(--deep-red); color: #fff;
    font-size: 0.72rem; font-weight: 800; letter-spacing: 0.5px; padding: 5px 44px;
    transform: rotate(45deg); box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.combo-card h2 { font-size: 1.4rem; margin-bottom: 6px; display: flex; align-items: center; gap: 10px; }
.combo-card > p.combo-card-desc { color: #cfe3d6; margin-bottom: 18px; font-size: 0.95rem; }
.combo-check-list { list-style: none; padding: 0; margin: 0 0 22px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 18px; }
.combo-check-list li { font-size: 0.88rem; color: #e8f3ec; }
.combo-check-list i { color: #4ade80; margin-right: 6px; }
.combo-price-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.combo-old-price { font-size: 1.1rem; color: #9fb3a8; text-decoration: line-through; }
.combo-new-price { font-size: 2.1rem; font-weight: 800; color: #fff; }
.combo-save-badge { background: #1f9d55; color: #fff; font-size: 0.8rem; font-weight: 700; padding: 4px 12px; border-radius: 20px; }
.combo-btn-primary {
    display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%;
    background: var(--deep-red); color: #fff; border: none; border-radius: 50px; padding: 16px;
    font-size: 1.02rem; font-weight: 800; letter-spacing: 0.3px; text-decoration: none; cursor: pointer;
    transition: background 0.2s ease, opacity 0.2s ease;
}
.combo-btn-primary:hover { background: #6e0000; }
.combo-btn-primary:disabled, .combo-btn-primary.is-disabled { background: #5a6b63; cursor: not-allowed; opacity: 0.75; }
.combo-btn-whatsapp {
    display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 14px;
    color: #25D366; font-weight: 700; font-size: 0.92rem; text-decoration: none;
}
.combo-btn-whatsapp:hover { text-decoration: underline; }

.combo-builder-desc { color: #cfe3d6; font-size: 0.92rem; line-height: 1.8; margin-bottom: 22px; }
.combo-group-label { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.4px; color: #9fd6b4; margin: 18px 0 10px; }
.combo-pick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-bottom: 6px; }
.combo-pick-item {
    display: flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; padding: 9px 12px;
    font-size: 0.87rem; color: #f0f5f2; cursor: pointer; transition: background 0.15s ease;
}
.combo-pick-item:hover { background: rgba(255,255,255,0.12); }
.combo-pick-item input { margin: 0; accent-color: var(--deep-red); }
.combo-builder-footer {
    display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
    margin-top: 22px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.15);
}
.combo-builder-status { font-size: 0.92rem; color: #e8f3ec; }
.combo-builder-status strong { color: #fff; font-size: 1.05rem; }
.combo-builder-footer .combo-btn-primary { width: auto; padding: 13px 30px; }
.combo-note { text-align: center; color: var(--text-gray); max-width: 700px; margin: 0 auto 50px; padding: 0 20px; line-height: 1.8; }
@media (max-width: 640px) {
    .combo-card { padding: 26px 20px; }
    .combo-check-list { grid-template-columns: 1fr 1fr; }
    .combo-new-price { font-size: 1.7rem; }
    .combo-builder-footer { flex-direction: column; align-items: stretch; }
    .combo-builder-footer .combo-btn-primary { width: 100%; }
}