.collapsible{border:1px solid var(--border);background:radial-gradient(circle at 10% 0%, #d4a01714, transparent 40%), radial-gradient(circle at 100% 100%, #c0392b0f, transparent 40%), var(--panel);border-radius:12px;width:100%;padding:16px;position:relative;box-shadow:0 4px 12px #0000000f}.collapsible:before{content:"";background:var(--gold,#d4a017);border-radius:0 0 4px 4px;width:42px;height:3px;position:absolute;top:-1px;left:20px}.collapsible__header{justify-content:space-between;align-items:center;gap:16px;display:flex}.collapsible__heading{align-items:flex-start;gap:10px;min-width:0;display:flex}.collapsible__ornament{color:var(--gold,#d4a017);flex:none;margin-top:3px;font-size:.8rem}.collapsible__title{margin:0;font-family:Cinzel,serif;font-size:1.15rem;line-height:1.35}.collapsible__subtitle{opacity:.65;margin:4px 0 0;font-size:.85rem;line-height:1.4}.collapsible__header button{white-space:nowrap;flex:none;align-items:center;gap:6px;display:inline-flex}.collapsible__button-text{font-size:.8rem}.collapsible__chevron{font-size:.65rem;transition:transform .2s}.collapsible--open .collapsible__chevron{transform:translateY(-1px)}.collapsible__content{border-top:1px dashed var(--border);margin-top:18px;padding-top:16px;animation:.2s ease-out curtain-open}@keyframes curtain-open{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@media (max-width:640px){.collapsible{padding:14px}.collapsible__header{align-items:flex-start}.collapsible__title{font-size:1rem}.collapsible__subtitle{font-size:.8rem}.collapsible__header button{padding:6px 8px}.collapsible__button-text{display:none}.collapsible__content{margin-top:14px;padding-top:14px}}@media (prefers-reduced-motion:reduce){.collapsible__chevron{transition:none}.collapsible__content{animation:none}}