#mc-tool{--radius:12px;--err:#ff5c6a;--mc-fundamental:#43e8d8;--mc-number-theory:#6c63ff;--mc-analysis:#f857a6;--mc-chaos:#ffb347;--mc-combinatorics:#22c55e;--mc-geometry:#4aa8ff;--mc-physics:#c084fc;--mc-computing:#ff8e6e}[data-theme=light] #mc-tool{--err:#d92f3d}.mc-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:24px}.mc-panel-title{color:var(--txt-strong);margin-bottom:6px;font-size:17px;font-weight:800}.mc-panel-sub{color:var(--txt-dim);margin-bottom:16px;font-size:13px;line-height:1.6}.mc-hint{color:var(--txt-dim);font-size:12px}.mc-cotd{background:linear-gradient(160deg, color-mix(in srgb, var(--accent) 8%, var(--surface)), var(--surface));flex-wrap:wrap;align-items:center;gap:20px;display:flex}.mc-cotd-symbol{color:var(--txt-strong);font-size:44px;font-weight:900;font-family:var(--mono);text-align:center;min-width:70px}.mc-cotd-body{flex:1;min-width:200px}.mc-cotd-name{color:var(--txt-strong);font-size:16px;font-weight:800}.mc-cotd-value{font-family:var(--mono);color:var(--accent);margin:4px 0;font-size:13px}.mc-cotd-fact{color:var(--txt-dim);font-size:13px;line-height:1.6}.mc-filter-row{flex-wrap:wrap;gap:10px;margin-bottom:14px;display:flex}.mc-filter-row .tool-search-wrap{flex:1;min-width:220px;margin-bottom:0}.mc-select{background:var(--surface2);border:1px solid var(--border);color:var(--txt-strong);border-radius:10px;padding:11px 14px;font-size:13px}.mc-cat-tabs{flex-wrap:wrap;gap:8px;margin-bottom:14px;display:flex}.mc-tab{cursor:pointer;background:var(--surface2);border:1px solid var(--border);color:var(--txt-dim);border-radius:999px;padding:8px 16px;font-size:13px;font-weight:700;transition:all .2s}.mc-tab:hover{border-color:var(--accent);color:var(--txt-strong)}.mc-tab.active{background:color-mix(in srgb, var(--accent) 16%, transparent);border-color:color-mix(in srgb, var(--accent) 45%, transparent);color:var(--accent)}.mc-toolbar-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:4px;display:flex}.mc-view-toggle{background:var(--surface2);border:1px solid var(--border);border-radius:8px;gap:2px;padding:3px;display:inline-flex}.mc-view-toggle button{color:var(--txt-dim);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px 12px;font-size:13px}.mc-view-toggle button.active{background:var(--accent);color:#fff}.mc-precision-row{color:var(--txt-dim);align-items:center;gap:10px;font-size:12px;display:flex}.mc-precision-row input[type=range]{width:140px;accent-color:var(--accent)}.mc-check{color:var(--txt);cursor:pointer;align-items:center;gap:7px;font-size:12px;display:flex}.mc-check input{accent-color:var(--accent)}#mc-count{color:var(--txt-dim);font-size:12px;font-family:var(--mono);margin:10px 0 16px}.mc-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;display:grid}.mc-grid.mc-list-view{grid-template-columns:1fr}.mc-card{background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:18px;transition:border-color .2s,transform .2s}.mc-card:hover{border-color:var(--accent);transform:translateY(-2px)}.mc-card-hd{justify-content:space-between;align-items:flex-start;display:flex}.mc-card-symbol{font-size:26px;font-weight:900;font-family:var(--mono);color:var(--txt-strong)}.mc-fav-btn{color:var(--txt-dim);cursor:pointer;background:0 0;border:none;font-size:18px}.mc-fav-btn.on{color:var(--warn)}.mc-card-name{color:var(--txt-strong);margin:4px 0 2px;font-size:14px;font-weight:800}.mc-card-value{font-family:var(--mono);color:var(--accent);word-break:break-all;margin-bottom:8px;font-size:12.5px}.mc-card-cat{color:var(--cc,var(--accent));background:color-mix(in srgb, var(--cc,var(--accent)) 14%, transparent);border-radius:999px;margin-bottom:10px;padding:3px 9px;font-size:10.5px;font-weight:700;display:inline-block}.mc-card-def{color:var(--txt-dim);margin-bottom:12px;font-size:12.5px;line-height:1.55}.mc-card-actions{gap:8px;display:flex}.mc-mini-btn{border:1px solid var(--border);background:var(--surface);color:var(--txt);cursor:pointer;border-radius:7px;flex:1;padding:7px 8px;font-size:11.5px;font-weight:700}.mc-mini-btn:hover{border-color:var(--accent);color:var(--txt-strong)}.mc-empty{text-align:center;color:var(--txt-dim);padding:40px 10px;font-size:13px;display:none}.mc-empty.show{display:block}.mc-detail-hd{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:14px;display:flex}.mc-detail-title-row{align-items:center;gap:14px;display:flex}#mc-detail-symbol{font-size:40px;font-weight:900;font-family:var(--mono);color:var(--txt-strong)}#mc-detail-name{color:var(--txt-strong);font-size:18px;font-weight:800}.mc-detail-badges{gap:8px;margin-top:4px;display:flex}.mc-detail-badges span{background:var(--surface2);border:1px solid var(--border);color:var(--txt-dim);border-radius:999px;padding:3px 9px;font-size:11px;font-weight:700}.mc-detail-close{border:1px solid var(--border);background:var(--surface2);width:34px;height:34px;color:var(--txt);cursor:pointer;border-radius:50%;font-size:15px}#mc-detail-value{font-family:var(--mono);color:var(--accent);background:var(--surface2);border:1px solid var(--border);word-break:break-all;border-radius:8px;margin-bottom:14px;padding:12px 16px;font-size:15px}.mc-detail-row{margin-bottom:12px}.mc-detail-row label{color:var(--txt-dim);text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px;font-size:11px;font-weight:700;display:block}.mc-detail-row p,.mc-detail-row div{color:var(--txt);font-size:14px;line-height:1.65}#mc-detail-formula{font-family:var(--mono);color:var(--txt-strong)}.mc-chip{background:var(--surface2);border:1px solid var(--border);color:var(--txt);cursor:pointer;border-radius:999px;margin:3px 4px 0 0;padding:6px 12px;font-size:12px}.mc-chip:hover{border-color:var(--accent);color:var(--accent)}.mc-detail-actions{gap:8px;margin-top:14px;display:flex}.mc-cmp-row{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px;display:flex}.mc-cmp-row select{border:1px solid var(--border);background:var(--surface2);min-width:200px;color:var(--txt-strong);border-radius:8px;flex:1;padding:10px 12px;font-size:13px}.mc-cmp-result{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.mc-cmp-card{background:var(--surface2);border:1px solid var(--border);text-align:center;border-radius:10px;padding:14px 20px}.mc-cmp-symbol{font-size:22px;font-weight:900;font-family:var(--mono);color:var(--txt-strong)}.mc-cmp-vs{color:var(--txt-dim);font-weight:800}.mc-cmp-ratio{font-family:var(--mono);color:var(--accent);width:100%;font-size:13px}.mc-calc-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;display:grid}.mc-calc-card{background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:18px}.mc-calc-card h3{color:var(--txt-strong);margin-bottom:10px;font-size:14px;font-weight:800}.mc-calc-card input{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--txt-strong);border-radius:7px;margin-bottom:8px;padding:9px 12px;font-size:13px}.mc-calc-result{color:var(--txt);margin-top:10px;font-size:13px;line-height:1.6}.mc-golden-box{background:linear-gradient(135deg, var(--grad1), var(--grad2));border-radius:6px;max-width:100%;margin:10px auto;transition:width .2s,height .2s}.mc-golden-wrap,.mc-quiz-wrap{text-align:center}.mc-quiz-score{color:var(--txt-dim);font-size:12px;font-weight:700;font-family:var(--mono);margin-bottom:14px}.mc-quiz-question{color:var(--txt-strong);min-height:24px;margin-bottom:16px;font-size:15px}.mc-quiz-choices{grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:10px;margin-bottom:16px;display:grid}.mc-quiz-choice{border:1px solid var(--border);background:var(--surface2);color:var(--txt-strong);font-family:var(--mono);cursor:pointer;border-radius:10px;padding:16px;font-size:18px;font-weight:800}.mc-quiz-choice:hover:not(:disabled){border-color:var(--accent)}.mc-quiz-choice.correct{border-color:var(--ok);background:color-mix(in srgb, var(--ok) 14%, transparent);color:var(--ok)}.mc-quiz-choice.wrong{border-color:var(--err);background:color-mix(in srgb, var(--err) 14%, transparent);color:var(--err)}.mc-quiz-choice:disabled{cursor:default;opacity:.7}.mc-history-list{flex-wrap:wrap;gap:4px;display:flex}.mc-history-empty{color:var(--txt-dim);font-size:12px}.mc-glossary-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;display:grid}.mc-glossary-card{background:var(--surface2);border:1px solid var(--border);border-radius:10px;padding:14px}.mc-glossary-card h4{color:var(--txt-strong);margin-bottom:6px;font-size:13px;font-weight:800}.mc-glossary-card p{color:var(--txt-dim);font-size:12.5px;line-height:1.6}.pane-btn{border:1px solid var(--border);background:var(--surface2);color:var(--txt);cursor:pointer;border-radius:7px;padding:8px 14px;font-size:12px;font-weight:700;transition:background .2s,color .2s,border-color .2s}.pane-btn:hover{background:var(--surface);color:var(--txt-strong);border-color:var(--accent)}.pane-btn.danger{color:var(--err);border-color:color-mix(in srgb, var(--err) 30%, transparent)}.pane-btn.danger:hover{background:color-mix(in srgb, var(--err) 10%, transparent);border-color:var(--err)}.b64-howto{counter-reset:mc-step;flex-direction:column;gap:14px;max-width:800px;list-style:none;display:flex}.b64-howto li{color:var(--txt);padding-left:40px;font-size:14px;line-height:1.65;position:relative}.b64-howto li:before{counter-increment:mc-step;content:counter(mc-step);background:linear-gradient(135deg, var(--grad1), var(--grad2));color:#fff;border-radius:8px;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:800;display:flex;position:absolute;top:0;left:0}.b64-howto strong{color:var(--txt-strong)}@media print{nav,.mobile-nav,.breadcrumb-wrap,.support-section,.browse-cats,footer,.tool-faq-section,.cat-hero,.mc-filter-row,.mc-cat-tabs,.mc-toolbar-row,#mc-random-btn,.mc-toast{display:none!important}}.mc-toast{background:var(--surface2);border:1px solid var(--border);color:var(--txt-strong);font-family:var(--mono);z-index:2000;opacity:0;pointer-events:none;border-radius:999px;padding:10px 20px;font-size:13px;font-weight:600;transition:opacity .25s,transform .25s;position:fixed;bottom:28px;left:50%;transform:translate(-50%)translateY(20px)}.mc-toast.show{opacity:1;transform:translate(-50%)translateY(0)}@media (width<=650px){.mc-panel{padding:18px}.mc-grid{grid-template-columns:1fr}.mc-cmp-row select{min-width:0}}