:root{--color-ev:var(--calc-cyan);--color-ev-rgb:34, 211, 238;--color-gas:#fb923c;--color-gas-rgb:251, 146, 60}[data-theme=light]{--color-ev:#0e7490;--color-ev-rgb:14, 116, 144;--color-gas:#c2410c;--color-gas-rgb:194, 65, 12}.main-container{max-width:1400px;margin:0 auto;padding:40px 20px}.page-header{margin-bottom:20px}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);letter-spacing:-.02em;margin:0 0 8px;font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800}.page-subtitle{color:var(--calc-text-dim);max-width:70ch;margin:0;font-size:1rem;line-height:1.6}.calc-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:start;gap:24px;display:grid}@media (width<=1024px){.calc-grid{grid-template-columns:1fr}}.preset-lead{font-family:var(--calc-font-mono);text-transform:uppercase;letter-spacing:.06em;color:var(--calc-text-dim);align-self:center;margin-right:4px;font-size:.72rem}.vehicle-cols{grid-template-columns:1fr 1fr;gap:18px;display:grid}@media (width<=560px){.vehicle-cols{grid-template-columns:1fr}}.vehicle-col{border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);background:#ffffff05;padding:14px 14px 6px}.vehicle-col--ev{border-top:3px solid var(--color-ev)}.vehicle-col--gas{border-top:3px solid var(--color-gas)}.veh-head{color:var(--calc-text-primary);align-items:center;gap:8px;margin:2px 0 12px;font-size:.95rem;font-weight:700;display:flex}.veh-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}.veh-dot--ev{background:var(--color-ev);box-shadow:0 0 8px rgba(var(--color-ev-rgb), .5)}.veh-dot--gas{background:var(--color-gas);box-shadow:0 0 8px rgba(var(--color-gas-rgb), .5)}.form-group--spacer{display:none}@media (width>=561px){.form-group--spacer{visibility:hidden;height:64px;margin:0 0 14px;display:block}}.shared-inputs{border-top:1px dashed var(--calc-border-default);grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px;padding-top:16px;display:grid}@media (width<=768px){.shared-inputs{grid-template-columns:1fr}}.result-card[data-winner=ev] .hero-value{color:var(--color-ev)}.result-card[data-winner=gas] .hero-value{color:var(--color-gas)}.chart-wrap{margin:18px 0 6px}.interp-panel{background:rgba(var(--color-ev-rgb), .06);border:1px solid rgba(var(--color-ev-rgb), .22);border-left:3px solid var(--color-ev);border-radius:var(--calc-radius-md);margin-top:14px;padding:14px 16px}.interp-text{color:var(--calc-text-faded);margin:0;font-size:.9rem;line-height:1.65}.table-note{color:var(--calc-text-dim);margin:4px 0 14px;font-size:.85rem;line-height:1.6}.data-table tr.row-breakeven{background:rgba(var(--color-ev-rgb), .1);font-weight:600}.data-table td.cell-pos{color:var(--color-ev)}.data-table td.cell-neg{color:var(--color-gas)}.sens-controls{gap:18px;margin:8px 0 20px;display:grid}.sens-row label{color:var(--calc-text-primary);justify-content:space-between;align-items:baseline;margin-bottom:6px;font-size:.88rem;font-weight:600;display:flex}.sens-val{font-family:var(--calc-font-mono);color:var(--color-ev);font-size:.85rem}.sens-row input[type=range]{width:100%;accent-color:var(--color-ev)}.sens-result{border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);background:#ffffff08;margin-bottom:18px;padding:16px}.sens-headline{font-family:var(--calc-font-headline);color:var(--calc-text-primary);font-size:1.4rem;font-weight:800}.sens-detail{color:var(--calc-text-dim);margin-top:6px;font-size:.88rem;line-height:1.55}.scenario-cards{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}@media (width<=640px){.scenario-cards{grid-template-columns:1fr}}.scenario-card{border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);text-align:center;background:#ffffff05;padding:14px}.scenario-card .sc-label{color:var(--calc-text-primary);font-size:.82rem;font-weight:700}.scenario-card .sc-sub{font-family:var(--calc-font-mono);color:var(--calc-text-dim);margin:4px 0 10px;font-size:.72rem}.scenario-card .sc-value{color:var(--color-ev);font-size:.95rem;font-weight:700}.faq-item__question{cursor:pointer;color:var(--calc-text-primary);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.92rem;font-weight:600;list-style:none;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--calc-font-mono);color:var(--calc-text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem}.faq-item[open] .faq-item__question:after{content:"−";color:var(--color-ev)}.faq-item__answer{color:var(--calc-text-dim);padding:0 4px 14px;font-size:.86rem;line-height:1.75}[data-theme=light] .page-subtitle{color:#475569}[data-theme=light] .preset-lead{color:#64748b}[data-theme=light] .vehicle-col{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .veh-dot{box-shadow:none}[data-theme=light] .interp-panel{border-color:rgba(var(--color-ev-rgb), .3);background:#eff9fb}[data-theme=light] .interp-text{color:#334155}[data-theme=light] .table-note{color:#475569}[data-theme=light] .data-table tr.row-breakeven{background:rgba(var(--color-ev-rgb), .12)}[data-theme=light] .sens-result{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .sens-headline{color:#0f172a}[data-theme=light] .sens-detail{color:#475569}[data-theme=light] .scenario-card{background:#f0f4f9;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .scenario-card .sc-label{color:#0f172a}[data-theme=light] .scenario-card .sc-sub{color:#64748b}[data-theme=light] .faq-item__question{color:#0f172a}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item[open] .faq-item__question:after{color:var(--color-ev)}[data-theme=light] .faq-item__answer{color:#475569}.energy-comparison-visualizer{border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);background:#ffffff05;padding:16px}[data-theme=light] .energy-comparison-visualizer{background:#f0f4f9;border-color:#0000001f}.energy-bar-track{background:#ffffff0d;border-radius:4px;width:100%;height:16px;display:flex;overflow:hidden}[data-theme=light] .energy-bar-track{background:#0000000d}.energy-segment{height:100%;transition:width .3s}.energy-segment.ev-home{background:var(--color-ev)}.energy-segment.ev-public{background:#06b6d4}.energy-segment.gas-fuel{background:var(--color-gas)}.carbon-offset-badge{border-radius:var(--calc-radius-md);background:#22c55e14;border:1px solid #22c55e40;padding:14px 16px;transition:transform .2s}.carbon-offset-badge:hover{transform:translateY(-1px)}[data-theme=light] .carbon-offset-badge{background:#f0fdf4;border-color:#22c55e59}@media print{.action-bar,.tab-bar,.preset-row,.sens-controls,.glass-navbar,.calc-back-to-top,.nav-toggle{display:none}}