@keyframes mo-osp-fade-in{0%{opacity:0}to{opacity:1}}@keyframes mo-osp-slide-up{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@media (prefers-color-scheme:dark){:root{--viewer-primary-color:#343434;--viewer-icons-color:#f2f2f6;--viewer-icons-hover-bgcolor:#453838}}@media (prefers-color-scheme:light){:root{--viewer-primary-color:#f2f2f6;--viewer-icons-color:#343434;--viewer-icons-hover-bgcolor:#e5e1e9}}:root{--plyr-control-icon-size:15px;--plyr-range-track-height:3px;--plyr-range-thumb-height:10px}@media (prefers-color-scheme:dark){:root{--viewer-primary-color:#343434;--viewer-icons-color:#f2f2f6;--viewer-icons-hover-bgcolor:#453838}}@media (prefers-color-scheme:light){:root{--viewer-primary-color:#f2f2f6;--viewer-icons-color:#343434;--viewer-icons-hover-bgcolor:#e5e1e9}}.aligncenter{clear:both;display:block;margin-left:auto;margin-right:auto}:root{--ep-primary:#007cba;--ep-primary-hover:#005a87;--ep-primary-light:#e6f3ff;--ep-secondary:#50575e;--ep-secondary-hover:#3c434a;--ep-secondary-light:#f6f7f7;--ep-success:#00a32a;--ep-success-light:#e6f7e6;--ep-warning:#dba617;--ep-warning-light:#fff8e5;--ep-error:#d63638;--ep-error-light:#ffeaea;--ep-info:#72aee6;--ep-info-light:#e5f5ff;--ep-white:#ffffff;--ep-gray-50:#f9fafb;--ep-gray-100:#f3f4f6;--ep-gray-200:#e5e7eb;--ep-gray-300:#d1d5db;--ep-gray-400:#9ca3af;--ep-gray-500:#6b7280;--ep-gray-600:#4b5563;--ep-gray-700:#374151;--ep-gray-800:#1f2937;--ep-gray-900:#111827;--ep-black:#000000;--ep-font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;--ep-font-family-mono:Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;--ep-text-xs:.75rem;--ep-text-sm:.875rem;--ep-text-base:1rem;--ep-text-lg:1.125rem;--ep-text-xl:1.25rem;--ep-text-2xl:1.5rem;--ep-text-3xl:1.875rem;--ep-text-4xl:2.25rem;--ep-font-light:300;--ep-font-normal:400;--ep-font-medium:500;--ep-font-semibold:600;--ep-font-bold:700;--ep-leading-tight:1.25;--ep-leading-normal:1.5;--ep-leading-relaxed:1.75;--ep-space-1:.25rem;--ep-space-2:.5rem;--ep-space-3:.75rem;--ep-space-4:1rem;--ep-space-5:1.25rem;--ep-space-6:1.5rem;--ep-space-8:2rem;--ep-space-10:2.5rem;--ep-space-12:3rem;--ep-space-16:4rem;--ep-space-20:5rem;--ep-radius-sm:.125rem;--ep-radius:.25rem;--ep-radius-md:.375rem;--ep-radius-lg:.5rem;--ep-radius-xl:.75rem;--ep-radius-2xl:1rem;--ep-radius-full:9999px;--ep-shadow-sm:0 1px 2px 0 rgb(0 0 0 / .05);--ep-shadow:0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--ep-shadow-md:0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--ep-shadow-lg:0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--ep-shadow-xl:0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--ep-transition-fast:.15s ease-in-out;--ep-transition-normal:.3s ease-in-out;--ep-transition-slow:.5s ease-in-out;--ep-z-dropdown:1000;--ep-z-sticky:1020;--ep-z-fixed:1030;--ep-z-modal-backdrop:1040;--ep-z-modal:1050;--ep-z-popover:1060;--ep-z-tooltip:1070;--ep-z-toast:1080;--ep-breakpoint-sm:640px;--ep-breakpoint-md:768px;--ep-breakpoint-lg:1024px;--ep-breakpoint-xl:1280px;--ep-breakpoint-2xl:1536px}#mo-osp-puzzle-popup-outer-div,.mo-osp-puzzle-overlay{position:fixed;top:0;left:0;width:100%;height:100%;z-index:100001!important}.mo-osp-puzzle-overlay{background:rgb(0 0 0/.6);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;animation:mo-osp-fade-in .3s ease-out}.mo-osp-puzzle-overlay.mo-osp-hidden{display:none}#mo-osp-puzzle-popup-outer-div{display:none}.mo-osp-puzzle-popup{background:#fff;border-radius:12px;box-shadow:0 20px 25px -5px rgb(0 0 0/.1),0 10px 10px -5px rgb(0 0 0/.04);max-width:480px;width:90%;max-height:90vh;overflow:hidden;animation:mo-osp-slide-up .3s ease-out;position:relative;z-index:100002}.mo-osp-puzzle-header{padding:24px 24px 16px;border-bottom:1px solid #f1f5f9;display:flex;align-items:center;justify-content:space-between}.mo-osp-puzzle-title{display:flex;align-items:center;margin:0;font-size:18px;font-weight:600;color:#334155}.mo-osp-puzzle-close{background:0 0;border:0;padding:8px;border-radius:6px;cursor:pointer;color:#6b7280;transition:all .2s ease}.mo-osp-puzzle-close:hover{background:#f3f4f6;color:#4b5563}.mo-osp-puzzle-body{padding:24px}.mo-osp-puzzle-message{margin-bottom:24px}.mo-osp-puzzle-message p{margin:0;color:#4b5563;font-size:14px;line-height:1.5}.mo-osp-puzzle-question{margin-bottom:20px}.mo-osp-puzzle-equation{display:flex;align-items:center;justify-content:center;gap:16px;padding:16px;background:#f8fafc;border:2px solid #e2e8f0;border-radius:8px;font-size:24px;font-weight:600}.mo-osp-equation-text{color:#334155;font-family:"Courier New",monospace}.mo-osp-puzzle-image{max-width:280px;width:100%;height:auto;border-radius:4px;border:2px solid #e2e8f0;background:#fff;padding:2px;display:block}.mo-osp-equals{color:#6366f1;font-weight:700}.mo-osp-puzzle-input{width:80px;height:48px;border:2px solid #e2e8f0;border-radius:6px;text-align:center;font-size:20px;font-weight:600;color:#334155;background:#fff;transition:border-color .2s ease,box-shadow .2s ease}.mo-osp-puzzle-input:focus{outline:0;border-color:#6366f1;box-shadow:0 0 0 3px rgb(99 102 241/.1)}.mo-osp-puzzle-input::placeholder{color:#9ca3af}.mo-osp-puzzle-error{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#fef2f2;border:1px solid #fca5a5;border-radius:6px;color:#dc2626;font-size:14px;margin-bottom:20px}.mo-osp-error-icon{flex-shrink:0}.mo-osp-puzzle-footer{padding:16px 24px 24px;display:flex;gap:12px;justify-content:flex-end}.mo-osp-puzzle-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;border:0}.mo-osp-btn-secondary{background:#f3f4f6;color:#4b5563;border:1px solid #d1d5db}.mo-osp-btn-secondary:hover{background:#e5e7eb;color:#374151}.mo-osp-btn-primary{background:#6366f1;color:#fff}.mo-osp-btn-primary:hover{background:#4f46e5}.mo-osp-btn-primary:disabled{background:#9ca3af;cursor:not-allowed}@media (max-width:480px){.mo-osp-puzzle-popup{width:95%;margin:20px}.mo-osp-puzzle-body,.mo-osp-puzzle-footer,.mo-osp-puzzle-header{padding-left:20px;padding-right:20px}.mo-osp-puzzle-equation{font-size:20px;gap:12px;padding:12px;flex-wrap:wrap}.mo-osp-puzzle-image{max-width:100%}.mo-osp-puzzle-input{width:70px;height:44px;font-size:18px}.mo-osp-puzzle-footer{flex-direction:column}.mo-osp-puzzle-btn{width:100%;justify-content:center}}