.hl-code-block{background:#1e1e2e;color:#cdd6f4;border-radius:12px;padding:14px 16px;overflow-x:auto;font-family:Fira Code,Cascadia Code,Courier New,monospace;font-size:13px;line-height:1.65;white-space:pre;-webkit-overflow-scrolling:touch;margin:10px 0;box-shadow:0 4px 16px #00000040;border:1px solid rgba(255,255,255,.06)}.hl-keyword{color:#cba6f7;font-weight:600}.hl-type{color:#89dceb}.hl-function{color:#89b4fa}.hl-string{color:#a6e3a1}.hl-number{color:#fab387}.hl-comment{color:#6c7086;font-style:italic}.hl-annotation{color:#f38ba8}.skeleton-card{background:var(--card-bg, rgba(255,255,255,.05));border-radius:16px;padding:24px;min-height:200px;display:flex;flex-direction:column;gap:12px}.skeleton-badge{width:80px;height:24px;border-radius:12px}.skeleton-title{width:70%;height:20px;border-radius:6px}.skeleton-line{width:100%;height:14px;border-radius:4px}.skeleton-line.short{width:60%}.skeleton-actions{display:flex;gap:12px;margin-top:auto}.skeleton-btn{width:56px;height:56px;border-radius:50%}.skeleton-text-block{display:flex;flex-direction:column;gap:10px}.skeleton-explanation{display:flex;flex-direction:column;gap:10px;padding:20px}.shimmer{background:linear-gradient(90deg,#ffffff0a,#ffffff1a,#ffffff0a 80%);background-size:400% 100%;animation:shimmer 1.8s ease-in-out infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:flex-end;justify-content:center;z-index:1000;animation:fadeIn .25s ease-out}.modal-content{background:var(--tg-theme-bg-color, #fff);width:100%;max-width:600px;max-height:82vh;border-radius:24px 24px 0 0;display:flex;flex-direction:column;animation:slideUp .3s ease-out;box-shadow:0 -8px 30px #0003}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid rgba(0,0,0,.07);flex-shrink:0}.modal-header h2{font-size:18px;font-weight:700;color:var(--tg-theme-text-color, #2d3436);margin:0}.close-button{background:var(--tg-theme-secondary-bg-color, #f1f3f5);border:none;padding:8px;cursor:pointer;color:var(--tg-theme-hint-color, #868e96);display:flex;align-items:center;justify-content:center;border-radius:10px;transition:all .2s}.close-button:hover{background:#0000001a;color:var(--tg-theme-text-color, #2d3436)}.modal-body{flex:1;overflow-y:auto;padding:20px;-webkit-overflow-scrolling:touch}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 20px;gap:16px}.spinner{animation:spin 1s linear infinite;color:var(--tg-theme-button-color, #5c7cfa)}.loading-container p{color:var(--tg-theme-hint-color, #868e96);font-size:14px}.explanation-content{color:var(--tg-theme-text-color, #2d3436);line-height:1.65;font-size:15px}.explanation-content h1,.explanation-content h2,.explanation-content h3{margin:20px 0 10px;color:var(--tg-theme-text-color, #2d3436);line-height:1.3}.explanation-content h1{font-size:22px}.explanation-content h2{font-size:18px}.explanation-content h3{font-size:16px}.explanation-content p{margin:10px 0}.explanation-content ul,.explanation-content ol{margin:10px 0;padding-left:22px}.explanation-content li{margin:6px 0}.explanation-content code{background:var(--tg-theme-secondary-bg-color, #f1f3f5);color:#c92a2a;padding:2px 7px;border-radius:5px;font-family:Fira Code,Courier New,monospace;font-size:.88em}.explanation-content pre{background:#1a1a2e;padding:16px 18px;border-radius:12px;overflow-x:auto;margin:14px 0;box-shadow:0 4px 14px #0003}.explanation-content pre code{background:none;color:#abb2bf;padding:0;font-size:13px;line-height:1.6}.explanation-content blockquote{border-left:4px solid var(--tg-theme-button-color, #5c7cfa);padding:10px 16px;margin:14px 0;background:var(--tg-theme-secondary-bg-color, #f1f3f5);border-radius:0 10px 10px 0;color:var(--tg-theme-hint-color, #868e96);font-style:italic}.modal-footer{padding:16px 20px;border-top:1px solid rgba(0,0,0,.07);flex-shrink:0}.action-button{width:100%;padding:15px;border-radius:14px;border:none;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-size:16px;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:0 4px 14px #764ba24d}.action-button:active{transform:scale(.98)}@media (hover: hover){.action-button:hover{opacity:.9}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}.structured-explanation{display:flex;flex-direction:column;gap:16px}.exp-title{font-size:20px;font-weight:700;color:var(--tg-theme-text-color, #1a1a2e);margin:0 0 4px;line-height:1.3}.exp-section{background:var(--tg-theme-secondary-bg-color, #f8f9fa);border-radius:14px;padding:14px 16px}.exp-section-header{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;opacity:.5;margin-bottom:10px;color:var(--tg-theme-text-color, #333)}.exp-theory{font-size:15px;line-height:1.65;color:var(--tg-theme-text-color, #333);margin:0}.exp-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.exp-list li{display:flex;align-items:flex-start;gap:6px;font-size:14px;line-height:1.5;color:var(--tg-theme-text-color, #333)}.exp-list-icon{opacity:.4;flex-shrink:0;margin-top:2px}.key-points li .bullet{color:var(--tg-theme-button-color, #5c7cfa);font-weight:700;font-size:18px;line-height:1;flex-shrink:0}.plain-explanation{display:flex;flex-direction:column;gap:8px}.plain-explanation p{margin:0;font-size:15px;line-height:1.65;color:var(--tg-theme-text-color, #333)}.plain-explanation p:empty{display:none}.inline-code{background:var(--tg-theme-secondary-bg-color, #f1f3f5);color:#c92a2a;padding:2px 6px;border-radius:5px;font-family:monospace;font-size:.88em}.exp-md-heading{font-size:17px;font-weight:700;color:var(--tg-theme-text-color, #1a1a2e);margin:0 0 10px;padding-bottom:6px;border-bottom:2px solid rgba(102,126,234,.2)}.exp-md-para{font-size:14px;line-height:1.65;color:var(--tg-theme-text-color, #2d3436);margin:0 0 10px}.exp-md-list{list-style:none;padding:0;margin:0 0 12px;display:flex;flex-direction:column;gap:6px}.exp-md-list li{font-size:13px;line-height:1.5;color:var(--tg-theme-text-color, #2d3436);padding:6px 10px;background:var(--tg-theme-secondary-bg-color, #f8f9fa);border-radius:8px;border-left:3px solid #667eea}.exp-md-code{background:#1a1a2e;border-radius:10px;padding:12px 14px;margin:0 0 12px;overflow-x:auto;-webkit-overflow-scrolling:touch}.exp-md-code code{font-family:JetBrains Mono,Fira Code,Courier New,monospace;font-size:12px;line-height:1.6;color:#e8eaf6;white-space:pre}