.roi{max-width:1000px;margin:0 auto}.roi-eyebrow{font-family:var(--em-font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--em-accent-text);font-size:11px}.roi-h{font-family:var(--em-font-display);letter-spacing:-.03em;margin-top:10px;font-size:clamp(24px,3vw,34px);font-weight:760}.roi-sub{color:var(--em-text-dim);max-width:640px;margin-top:10px;font-size:15px;line-height:1.55}.roi-modes{border:1px solid var(--em-line);background:var(--em-surface);border-radius:11px;gap:4px;margin:22px 0 20px;padding:4px;display:inline-flex}.roi-mode-btn{color:var(--em-text-dim);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:8px;padding:8px 16px;font-size:13.5px;font-weight:600}.roi-mode-btn.is-active{background:var(--em-surface-2);color:var(--em-text)}.roi-grid{grid-template-columns:1fr 1fr;align-items:start;gap:18px;display:grid}.roi-inputs{border:1px solid var(--em-line);background:var(--em-surface);border-radius:14px;flex-direction:column;gap:14px;padding:20px;display:flex}.roi-inputs[hidden],.roi-out-e[hidden],.roi-out-c[hidden]{display:none}.roi-field{color:var(--em-text-dim);flex-direction:column;gap:6px;font-size:13px;display:flex}.roi-field>span b{color:var(--em-accent-text);font-family:var(--em-font-mono)}.roi-field input[type=number],.roi-field select{border:1px solid var(--em-line-strong);background:var(--em-bg-sub);color:var(--em-text);font:inherit;border-radius:9px;padding:10px 12px;font-size:14px}.roi-field input[type=range]{width:100%;accent-color:var(--em-accent)}.roi-check{color:var(--em-text-dim);cursor:pointer;align-items:center;gap:8px;font-size:13.5px;display:flex}.roi-check input{accent-color:var(--em-accent);width:16px;height:16px}.roi-presets{flex-wrap:wrap;gap:6px;display:flex}.roi-preset{border:1px solid var(--em-line);background:var(--em-bg-sub);color:var(--em-text-dim);font:inherit;cursor:pointer;border-radius:8px;padding:6px 10px;font-size:12px}.roi-preset:hover{border-color:var(--em-accent-edge);color:var(--em-text)}.roi-out{border:1px solid var(--em-accent-edge);background:var(--em-surface);border-radius:14px;padding:22px;transition:background .18s,border-color .18s}.roi-out:hover{background:var(--em-accent-soft)}.roi-result{flex-wrap:wrap;align-items:baseline;gap:6px;display:flex}.roi-result-label{color:var(--em-text-dim);font-size:13px}.roi-result-val{font-family:var(--em-font-display);letter-spacing:-.02em;color:var(--em-text);font-size:clamp(28px,4vw,40px);font-weight:800}.roi-result-val.roi-neg{color:var(--em-warn)}.roi-result-per{color:var(--em-text-muted);font-size:14px}.roi-stats{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px;display:grid}.roi-stat{border:1px solid var(--em-line);background:var(--em-surface);border-radius:10px;padding:12px}.roi-stat span{font-family:var(--em-font-display);color:var(--em-text);font-size:17px;font-weight:720;display:block}.roi-stat small{color:var(--em-text-muted);margin-top:3px;font-size:11px;display:block}.roi-cta{background:linear-gradient(150deg, var(--em-accent-bright), var(--em-accent));color:var(--em-accent-ink);border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;margin-top:18px;padding:11px 20px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.roi-cta:hover{filter:brightness(1.05)}.roi-chart{width:100%;height:200px;margin-top:12px;display:block}.roi-legend{gap:16px;margin-top:8px;font-size:11.5px;display:flex}.roi-leg{color:var(--em-text-dim);padding-left:18px;position:relative}.roi-leg:before{content:"";border-radius:2px;width:12px;height:3px;position:absolute;top:6px;left:0}.roi-leg--cloud:before{background:var(--em-accent)}.roi-leg--ai:before{background:var(--em-ok)}.roi-breakeven{color:var(--em-text-dim);margin-top:12px;font-size:13px}.roi-breakeven b{color:var(--em-accent-text);font-family:var(--em-font-mono)}.roi-how{border-top:1px solid var(--em-line);margin-top:22px;padding-top:14px}.roi-how summary{cursor:pointer;color:var(--em-accent-text);font-size:13.5px;font-weight:600;list-style:none}.roi-how summary::-webkit-details-marker{display:none}.roi-formula{font-family:var(--em-font-mono);color:var(--em-text-dim);background:var(--em-bg-sub);border:1px solid var(--em-line);border-radius:10px;padding:12px;font-size:12px;line-height:1.6}.roi-sources{color:var(--em-text-muted);flex-direction:column;gap:6px;margin:12px 0 0;padding-left:18px;font-size:12px;line-height:1.5;display:flex}.roi--mini{border:1px solid var(--em-accent-edge);background:var(--em-surface);border-radius:16px;max-width:none;padding:22px;transition:background .18s,border-color .18s}.roi--mini:hover{background:var(--em-accent-soft)}.roi-mini-h{font-family:var(--em-font-display);margin-top:6px;font-size:20px;font-weight:720}.roi-mini-fields{grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;display:grid}.roi-mini-out{align-items:baseline;gap:6px;margin-top:16px;display:flex}.roi-mini-label{color:var(--em-text-dim);font-size:13px}.roi-mini-val{font-family:var(--em-font-display);color:var(--em-text);font-size:30px;font-weight:800}.roi-mini-per{color:var(--em-text-muted);font-size:13px}.roi-mini-link{color:var(--em-accent-text);margin-top:14px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.roi-mini-link:hover{text-decoration:underline}@media (width<=820px){.roi-grid,.roi-mini-fields{grid-template-columns:1fr}}