.collapsible__toggle{display:flex;align-items:center;justify-content:center;gap:.6rem;width:100%;max-width:420px;margin:0 auto;background:#ffffff0a;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:.85rem 1.75rem;color:#ffffffd9;font-family:var(--font-sans);font-size:.92rem;font-weight:600;letter-spacing:.02em;cursor:pointer;transition:background .2s ease,border-color .2s ease}.collapsible__toggle:hover,.collapsible__toggle:focus-visible{background:#ffffff17;border-color:var(--chemia-yellow, #ffe100)}.collapsible__chevron{font-size:.8rem;transition:transform .3s cubic-bezier(.16,1,.3,1)}.collapsible.is-open .collapsible__chevron{transform:rotate(180deg)}.collapsible__panel{box-sizing:border-box;overflow:hidden;max-height:0;padding-top:0;transition:max-height .48s cubic-bezier(.16,1,.3,1)}.collapsible.is-open .collapsible__panel{padding-top:3rem}.collapsible__panel-inner>*+*{margin-top:3rem}@media(prefers-reduced-motion:reduce){.collapsible__chevron,.collapsible__panel{transition:none!important}}