.roi-wrap{margin-bottom:2rem;}
.roi-panel{background:var(--surface,#fff);border-radius:16px;border:1px solid var(--border,#e5e7eb);box-shadow:0 2px 12px rgba(0,0,0,0.04);padding:1.5rem;margin-bottom:1.25rem;}
.roi-panel-title{font-size:1.125rem;font-weight:600;color:var(--text-main,#111);margin:0 0 1rem;}
.roi-form{display:grid;gap:1rem;grid-template-columns:1fr;}
.roi-field{display:flex;flex-direction:column;gap:0.35rem;}
.roi-label{font-size:0.8125rem;font-weight:600;color:var(--text-muted,#6b7280);letter-spacing:0.02em;}
.roi-input{width:100%;padding:0.75rem 1rem;font-size:1rem;border:2px solid var(--border,#e5e7eb);border-radius:10px;background:var(--surface,#fff);color:var(--text-main,#111);transition:border-color 0.2s,box-shadow 0.2s;box-sizing:border-box;}
.roi-input:focus{outline:none;border-color:var(--primary,#2563eb);box-shadow:0 0 0 3px rgba(37,99,235,0.12);}
.roi-select{width:100%;padding:0.75rem 1rem;font-size:0.9375rem;border:2px solid var(--border,#e5e7eb);border-radius:10px;background:var(--surface,#fff);color:var(--text-main,#111);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 0.75rem center;background-size:1.25rem;padding-right:2.5rem;}
.roi-select:focus{outline:none;border-color:var(--primary,#2563eb);}
.roi-actions{display:flex;flex-wrap:wrap;gap:0.75rem;margin-top:1.25rem;}
.roi-btn{padding:0.75rem 1.25rem;font-size:0.9375rem;font-weight:600;border-radius:10px;border:none;cursor:pointer;transition:transform 0.15s,box-shadow 0.2s;display:inline-flex;align-items:center;gap:0.5rem;}
.roi-btn-primary{background:var(--primary,#2563eb);color:#fff;}
.roi-btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
.roi-btn-secondary{background:var(--surface,#fff);color:var(--text-main,#374151);border:2px solid var(--border,#e5e7eb);}
.roi-btn-secondary:hover{background:var(--surface-muted,#f9fafb);border-color:#d1d5db;}
.roi-result-strip{background:linear-gradient(135deg,var(--surface-muted,#f8fafc) 0%,#f1f5f9 100%);border:2px solid var(--border,#e2e8f0);border-radius:14px;padding:1.5rem;margin-bottom:1.25rem;text-align:center;}
.roi-result-label{font-size:0.75rem;font-weight:600;color:var(--text-muted,#64748b);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:0.35rem;}
.roi-result-value{font-size:clamp(1.75rem,5vw,2.5rem);font-weight:700;color:var(--text-main,#111);line-height:1.2;}
.roi-result-summary{font-size:0.9375rem;color:var(--text-muted,#64748b);margin:0.5rem 0 1rem;}
.roi-copy-btn{width:100%;padding:0.65rem 1rem;font-size:0.875rem;font-weight:600;border-radius:10px;border:1px solid var(--border,#dde3e7);background:#e2e8f0;color:#475569;cursor:pointer;transition:background 0.2s,color 0.2s;display:flex;align-items:center;justify-content:center;gap:0.5rem;}
.roi-copy-btn:hover{background:#cbd5e1;}
.roi-copy-btn.copied{background:#10b981;border-color:#10b981;color:#fff;}
.roi-tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:0.75rem;}
.roi-tile{background:var(--surface,#fff);border:1px solid var(--border,#e5e7eb);border-radius:10px;padding:0.875rem;text-align:center;}
.roi-tile-label{font-size:0.6875rem;font-weight:600;color:var(--text-muted,#6b7280);text-transform:uppercase;letter-spacing:0.03em;margin-bottom:0.25rem;}
.roi-tile-value{font-size:1rem;font-weight:700;color:var(--text-main,#111);}
.roi-chart-wrap{background:var(--surface,#fff);border:1px solid var(--border,#e5e7eb);border-radius:12px;padding:1rem;margin-bottom:1.25rem;height:260px;}
.roi-chart-title{font-size:0.9375rem;font-weight:600;color:var(--text-main,#374151);margin-bottom:0.75rem;}
.roi-yearly{margin-top:1.25rem;padding-top:1.25rem;border-top:1px solid var(--border,#e5e7eb);}
.roi-yearly-title{font-size:1rem;font-weight:600;color:var(--text-main,#374151);margin-bottom:0.75rem;display:flex;align-items:center;gap:0.5rem;}
.roi-yearly-table{width:100%;border-collapse:collapse;font-size:0.8125rem;}
.roi-yearly-table th,.roi-yearly-table td{padding:0.5rem 0.35rem;text-align:right;border-bottom:1px solid #f3f4f6;}
.roi-yearly-table th{background:var(--surface-muted,#f9fafb);font-weight:600;color:var(--text-muted,#374151);}
.roi-yearly-table td:first-child{text-align:left;font-weight:500;}
.roi-yearly-chart{height:220px;margin-top:1rem;}
.roi-export{display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border,#e5e7eb);}
.roi-export .roi-btn{font-size:0.8125rem;padding:0.5rem 0.875rem;}
.roi-positive{color:#10b981;}
.roi-negative{color:#ef4444;}
.roi-modal{display:none;position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,0.5);align-items:center;justify-content:center;padding:1rem;}
.roi-modal-content{background:var(--surface,#fff);border-radius:14px;padding:1.5rem;width:100%;max-width:420px;position:relative;}
.roi-modal-close{position:absolute;top:1rem;right:1rem;font-size:1.5rem;cursor:pointer;color:var(--text-muted,#9ca3af);line-height:1;}
.roi-modal-close:hover{color:var(--text-main,#374151);}
.roi-modal h3{font-size:1.125rem;margin-bottom:0.5rem;}
.roi-modal p{font-size:0.875rem;color:var(--text-muted,#6b7280);margin-bottom:0.75rem;}
.roi-url-row{display:flex;gap:0.5rem;margin-top:0.5rem;}
.roi-url-input{flex:1;padding:0.6rem 0.75rem;border:1px solid var(--border,#d1d5db);border-radius:8px;font-size:0.8125rem;}
.roi-url-copy{padding:0.6rem 1rem;background:var(--primary,#2563eb);color:#fff;border:none;border-radius:8px;font-size:0.8125rem;font-weight:500;cursor:pointer;}
@media (min-width:480px){.roi-form{grid-template-columns:repeat(2,1fr);}.roi-tiles{grid-template-columns:repeat(3,1fr);}}
@media (min-width:768px){.roi-form{grid-template-columns:repeat(3,1fr);}.roi-tiles{grid-template-columns:repeat(3,1fr);}.roi-chart-wrap{height:280px;}.roi-yearly-chart{height:260px;}}
@media (min-width:992px){.roi-form{grid-template-columns:repeat(2,1fr);}.roi-main{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;align-items:start;}.roi-main .roi-panel:first-child{grid-column:1;}.roi-main .roi-panel:nth-child(2){grid-column:2;grid-row:1 / span 2;}.roi-tiles{grid-template-columns:repeat(2,1fr);}}