#roi-tool{--radius:10px;--err:#ff5c6a;--p-clr:#f59e0b}[data-theme=light] #roi-tool{--err:#d92f3d}.roi-share-row{justify-content:center;margin-top:18px;display:flex}.roi-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:24px}.roi-panel-hd{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px;display:flex}.roi-panel-title{color:var(--txt-strong);margin-bottom:6px;font-size:17px;font-weight:800}.roi-panel-sub{color:var(--txt-dim);margin-bottom:16px;font-size:13px;line-height:1.6}.roi-hint{color:var(--txt-dim);margin-top:10px;font-size:12px;line-height:1.6}.roi-grid-4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:16px;display:grid}.roi-field label{color:var(--txt-dim);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.roi-field input,.roi-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:11px 14px;font-size:14px;transition:border-color .2s,box-shadow .2s}.roi-field input:focus,.roi-field select:focus{border-color:var(--p-clr);box-shadow:0 0 0 3px color-mix(in srgb, var(--p-clr) 14%, transparent)}.roi-textarea{resize:vertical;background:var(--surface2);border:1px solid var(--border);width:100%;min-height:120px;color:var(--txt-strong);font-family:var(--mono);border-radius:8px;outline:none;padding:14px;font-size:13px;line-height:1.6}.roi-textarea:focus{border-color:var(--p-clr)}.roi-result-row{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-top:18px;display:grid}.roi-result-card{background:var(--surface2);border:1px solid var(--border);text-align:center;border-radius:12px;padding:16px}.roi-result-card.main{border-color:color-mix(in srgb, var(--p-clr) 45%, var(--border))}.roi-result-label{color:var(--txt-dim);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:11px;font-weight:700}.roi-result-value{color:var(--txt-strong);font-size:20px;font-weight:900;font-family:var(--mono);letter-spacing:-.5px}.roi-chart-wrap{background:var(--surface2);border:1px solid var(--border);border-radius:10px;margin-top:18px;padding:16px}.roi-chart-wrap svg{width:100%;height:auto;display:block}.roi-table-wrap{border:1px solid var(--border);border-radius:8px;overflow-x:auto}table.roi-table{border-collapse:collapse;width:100%;font-family:var(--mono);min-width:640px;font-size:13px}table.roi-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 12px;font-size:11px}table.roi-table td{border-bottom:1px solid var(--border);color:var(--txt);padding:8px 10px}table.roi-table td input{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--txt-strong);font-family:var(--mono);border-radius:6px;padding:7px 9px;font-size:12.5px}table.roi-table td.roi-cmp-roi{color:var(--p-clr);font-weight:800}table.roi-table tr:hover{background:var(--surface2)}.roi-cmp-del{border:1px solid var(--border);background:var(--surface);width:26px;height:26px;color:var(--txt-dim);cursor:pointer;border-radius:6px;font-size:12px}.roi-cmp-del:hover{color:var(--err);border-color:var(--err)}.roi-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:var(--p-clr)}.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)}.roi-history-list{flex-direction:column;gap:8px;max-height:380px;display:flex;overflow-y:auto}.roi-history-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}.roi-history-item{background:var(--surface2);border:1px solid var(--border);cursor:pointer;border-radius:9px;align-items:center;gap:12px;padding:9px 14px;transition:border-color .2s;display:flex}.roi-history-item:hover{border-color:var(--p-clr)}.roi-history-badge{text-transform:uppercase;color:var(--p-clr);background:color-mix(in srgb, var(--p-clr) 14%, transparent);border-radius:999px;flex-shrink:0;padding:3px 8px;font-size:10px;font-weight:800}.roi-history-text{min-width:0;font-family:var(--mono);color:var(--txt);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:12px;overflow:hidden}.roi-history-time{color:var(--txt-dim);font-size:11px;font-family:var(--mono);flex-shrink:0}.roi-history-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}.roi-history-del:hover{color:var(--err);border-color:var(--err)}.b64-howto{counter-reset:roi-step;flex-direction:column;gap:14px;max-width:820px;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:roi-step;content:counter(roi-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)}.roi-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)}.roi-toast.show{opacity:1;transform:translate(-50%)translateY(0)}@media print{nav,.mobile-nav,.breadcrumb-wrap,.support-section,.browse-cats,footer,.tool-faq-section,.cat-hero,.roi-actions,.roi-history-list,.roi-toast,.roi-share-row{display:none!important}}@media (width<=650px){.roi-panel{padding:18px}.roi-actions{flex-direction:column}.roi-actions button{width:100%}}