#uc-tool{--radius:10px;--err:#ff5c6a;--fav:#ffb347}[data-theme=light] #uc-tool{--err:#d92f3d}.uc-hero-actions{justify-content:center;margin-top:8px;display:flex}.uc-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:24px}.uc-panel-hd{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px;display:flex}.uc-panel-title{color:var(--txt-strong);margin-bottom:10px;font-size:17px;font-weight:800}.uc-panel-sub{color:var(--txt-dim);margin-bottom:14px;font-size:13px;line-height:1.6}.uc-cat-tabs{flex-wrap:wrap;gap:8px;display:flex}.uc-cat-tab{cursor:pointer;background:var(--surface2);border:1px solid var(--border);color:var(--txt-dim);border-radius:999px;align-items:center;gap:6px;padding:9px 16px;font-size:13px;font-weight:700;transition:all .2s;display:inline-flex}.uc-cat-tab:hover{color:var(--txt-strong);border-color:#43e8d8}.uc-cat-tab.active{color:#43e8d8;background:#43e8d829;border-color:#43e8d873}.uc-convert-grid{grid-template-columns:1fr 1.3fr auto 1.3fr;align-items:end;gap:14px;margin-bottom:20px;display:grid}.uc-field label{color:var(--txt-dim);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.uc-field input,.uc-field select{background:var(--surface2);border:1px solid var(--border);width:100%;color:var(--txt-strong);font-family:var(--mono);border-radius:8px;outline:none;padding:12px 14px;font-size:14px;transition:border-color .2s,box-shadow .2s}.uc-field input:focus,.uc-field select:focus{border-color:#43e8d8;box-shadow:0 0 0 3px #43e8d824}.uc-field-inline{flex:1;min-width:220px}.uc-swap-btn{border:1px solid var(--border);background:var(--surface2);color:#43e8d8;cursor:pointer;border-radius:50%;width:44px;height:44px;font-size:18px;transition:background .2s,transform .2s}.uc-swap-btn:hover{background:var(--surface);transform:rotate(180deg)}.uc-result-wrap{text-align:center;background:var(--surface2);border:1px solid var(--border);border-radius:12px;margin-bottom:18px;padding:20px 16px}.uc-result-value{color:var(--txt-strong);font-size:clamp(24px,4vw,36px);font-weight:900;font-family:var(--mono);letter-spacing:-.5px;word-break:break-word}.uc-result-formula{color:var(--txt-dim);font-size:12px;font-family:var(--mono);margin-top:8px}.uc-opts-row{flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:16px;display:flex}.uc-check{color:var(--txt);cursor:pointer;white-space:nowrap;align-items:center;gap:8px;font-size:13px;display:flex}.uc-check input{accent-color:#43e8d8;cursor:pointer;width:16px;height:16px}input[type=range]{accent-color:#43e8d8;width:100%}.uc-actions{flex-wrap:wrap;gap:12px;display:flex}.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:#43e8d8}.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)}.pane-btn.on{color:var(--fav);border-color:color-mix(in srgb, var(--fav) 45%, transparent);background:color-mix(in srgb, var(--fav) 12%, transparent)}.uc-preset-chips{flex-wrap:wrap;gap:8px;display:flex}.uc-preset-chip{border:1px solid var(--border);background:var(--surface2);color:var(--txt);cursor:pointer;border-radius:999px;padding:8px 14px;font-size:12.5px;font-weight:700;transition:all .2s}.uc-preset-chip:hover{color:#43e8d8;border-color:#43e8d8}.uc-table-toolbar{flex-wrap:wrap;gap:10px;margin-bottom:14px;display:flex}.uc-table-toolbar input[type=text]{background:var(--surface2);border:1px solid var(--border);min-width:200px;color:var(--txt-strong);font-family:var(--sans);border-radius:8px;outline:none;flex:1;padding:10px 14px;font-size:13px}.uc-table-toolbar input:focus{border-color:#43e8d8}.uc-table-wrap{border:1px solid var(--border);border-radius:8px;max-height:480px;overflow:auto}table.uc-table{border-collapse:collapse;width:100%;font-family:var(--mono);font-size:13px}table.uc-table th{background:var(--surface2);color:var(--txt-dim);text-align:left;border-bottom:1px solid var(--border);text-transform:uppercase;letter-spacing:.4px;padding:10px 14px;font-size:11px;position:sticky;top:0}table.uc-table td{border-bottom:1px solid var(--border);color:var(--txt);padding:8px 14px}table.uc-table tr{cursor:pointer}table.uc-table tr:hover td{background:var(--surface2)}table.uc-table td.uc-star{text-align:center;cursor:pointer;color:var(--txt-dim);width:30px}table.uc-table td.uc-star.on{color:var(--fav)}table.uc-table td.uc-val{color:var(--txt-strong);font-weight:700}.uc-batch-grid{grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px;display:grid}.uc-batch-label{color:var(--txt-dim);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.uc-textarea{resize:vertical;background:var(--surface2);border:1px solid var(--border);width:100%;min-height:160px;color:var(--txt);font-family:var(--mono);border-radius:8px;outline:none;padding:14px;font-size:13px;line-height:1.6}.uc-textarea:focus{border-color:#43e8d8}.uc-two-col{grid-template-columns:1fr 1fr;gap:20px;display:grid}.uc-fav-list,.uc-history-list{flex-direction:column;gap:8px;max-height:340px;display:flex;overflow-y:auto}.uc-list-empty{text-align:center;color:var(--txt-dim);background:var(--surface2);border:1px dashed var(--border);border-radius:var(--radius);padding:20px;font-size:13px}.uc-fav-item,.uc-history-item{background:var(--surface2);border:1px solid var(--border);cursor:pointer;border-radius:9px;align-items:center;gap:10px;padding:9px 14px;transition:border-color .2s;display:flex}.uc-fav-item:hover,.uc-history-item:hover{border-color:#43e8d8}.uc-item-text{min-width:0;font-family:var(--mono);color:var(--txt);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:12.5px;overflow:hidden}.uc-item-time{color:var(--txt-dim);font-size:11px;font-family:var(--mono);flex-shrink:0}.uc-item-del{border:1px solid var(--border);width:24px;height:24px;color:var(--txt-dim);cursor:pointer;background:0 0;border-radius:6px;flex-shrink:0;font-size:12px}.uc-item-del:hover{color:var(--err);border-color:var(--err)}.uc-share-bottom{justify-content:center;margin-top:8px;display:flex}.b64-howto{counter-reset:uc-step;flex-direction:column;gap:14px;max-width:780px;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:uc-step;content:counter(uc-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)}.uc-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)}.uc-toast.show{opacity:1;transform:translate(-50%)translateY(0)}@media (width<=900px){.uc-convert-grid{grid-template-columns:1fr 1fr}.uc-swap-btn{justify-self:center}.uc-two-col,.uc-batch-grid{grid-template-columns:1fr}}@media (width<=650px){.uc-panel{padding:18px}.uc-convert-grid{grid-template-columns:1fr}.uc-actions{flex-direction:column}.uc-actions button{width:100%}}