.solution-card-hint[data-astro-cid-2jrj375w]{position:relative;display:none;margin:.25rem 0 1.5rem;padding:1.25rem 1.5rem;background:var(--hint-bg, linear-gradient(135deg, #fff3a0 0%, #ffd700 100%));color:var(--hint-text-color, #2d3748);font-family:Roboto,system-ui,sans-serif;box-shadow:0 4px 12px #1f293726;border-radius:12px;transition:opacity .25s ease,transform .25s ease;opacity:0;transform:translateY(-8px);z-index:20}.solution-card-hint[data-astro-cid-2jrj375w].has-exam-footnote{padding-bottom:2.5rem}.solution-card-hint[data-astro-cid-2jrj375w].visible{display:block;opacity:1;transform:translateY(0)}.hint-close-btn[data-astro-cid-2jrj375w]{position:absolute;top:0;right:0;background:#ffffffd9;border:none;border-radius:50%;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#1f2937;transition:all .2s ease;z-index:10;padding:0;transform:translate(calc(50% - 10px),calc(-50% + 10px))}.hint-close-btn[data-astro-cid-2jrj375w]:hover{background:#fff;transform:translate(calc(50% - 10px),calc(-50% + 10px)) scale(1.1);color:#111827}.hint-close-btn[data-astro-cid-2jrj375w]:active{transform:translate(calc(50% - 10px),calc(-50% + 10px)) scale(.95)}.hint-close-btn[data-astro-cid-2jrj375w]:focus-visible{outline:2px solid #111827;outline-offset:2px}.hint-inner[data-astro-cid-2jrj375w]{position:relative;z-index:2;display:flex;flex-direction:column;gap:.85rem}.hint-text[data-astro-cid-2jrj375w]{font-size:1.1rem;line-height:1.4;font-weight:600;text-align:center}.hint-footnote[data-astro-cid-2jrj375w]{position:absolute;bottom:.5rem;right:1rem;left:1rem;font-size:.75rem;color:inherit;opacity:.85;font-style:italic;text-align:right;line-height:1.3;display:flex;align-items:flex-end;justify-content:flex-end}@media (max-width: 640px){.solution-card-hint[data-astro-cid-2jrj375w]{margin:0 0 .75rem;padding:1.1rem 1.2rem}.solution-card-hint[data-astro-cid-2jrj375w].has-exam-footnote{padding-bottom:2.5rem}.hint-text[data-astro-cid-2jrj375w]{font-size:1rem}.hint-footnote[data-astro-cid-2jrj375w]{font-size:.7rem;max-width:80%;bottom:.5rem;right:.75rem;left:.75rem}.hint-close-btn[data-astro-cid-2jrj375w]{width:2.25rem;height:2.25rem}.hint-close-btn[data-astro-cid-2jrj375w] svg[data-astro-cid-2jrj375w]{width:22px;height:22px}}