textarea{width:100%;border:1px solid var(--vbc-gray-300);border-radius:8px;padding:11px 12px;font:inherit;background:var(--vbc-white);color:var(--ink);min-height:90px;resize:vertical}
.public-nav{display:flex;gap:18px}.public-nav a{color:var(--ink);font-weight:700;text-decoration:none}
.calculator-shell{width:calc(100% - 40px);max-width:1240px;min-width:0;overflow:hidden;padding:64px 0 100px}.calculator-intro{max-width:780px;margin-bottom:42px}.calculator-intro h1{font-size:clamp(38px,6vw,68px);line-height:1.02;letter-spacing:-.045em;margin:0 0 20px}.calculator-intro>p:last-child{color:var(--muted);font-size:18px}.calculator-form{display:grid;gap:20px;min-width:0}
.calc-block,.result-panel{background:var(--vbc-white);border:1px solid var(--line);border-radius:18px;padding:clamp(22px,4vw,36px);box-shadow:0 12px 40px rgba(30,72,88,.06)}.block-heading{display:flex;align-items:start;gap:15px;margin-bottom:24px}.block-heading>span{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--vbc-blue-soft);color:var(--vbc-blue-equipment);font-size:12px;font-weight:800}.block-heading h2{margin:0;font-size:25px}.block-heading p{margin:2px 0 0;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-grid .wide{grid-column:1/-1}.two-column-block{display:grid;grid-template-columns:1fr 1fr;gap:40px}.check{display:flex!important;gap:8px;align-items:center}.check input{width:auto;margin:0}
.profile-status{margin:0;padding:12px 14px;border-radius:9px;background:var(--vbc-blue-soft);color:var(--vbc-blue-text);font-weight:700}.advanced-options>summary{display:flex;align-items:center;gap:15px;cursor:pointer;list-style:none}.advanced-options>summary::-webkit-details-marker{display:none}.advanced-options>summary>span{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--vbc-blue-soft);color:var(--vbc-blue-equipment);font-size:12px;font-weight:800}.advanced-options>summary strong{display:block;font-size:22px}.advanced-options>summary small{display:block;color:var(--muted);font-weight:400}.advanced-options[open]>summary{margin-bottom:18px}.advanced-warning{padding:12px 14px;background:var(--vbc-orange-soft);border-left:4px solid var(--vbc-orange-accent);border-radius:5px;color:var(--vbc-orange-text)}.advanced-grid h3{margin:20px 0 0;padding-bottom:8px;border-bottom:1px solid var(--line)}
.calculate-bar{position:sticky;bottom:16px;z-index:5;background:var(--vbc-blue-dark);color:var(--vbc-white);border-radius:15px;padding:18px 22px;display:flex;justify-content:space-between;align-items:center;gap:20px;box-shadow:0 15px 40px rgba(16,43,58,.25)}.calculate-bar div{display:grid}.calculate-bar small{color:var(--vbc-gray-300)}.calculation-results{width:100%;max-width:100%;overflow:hidden;margin-top:64px;display:grid;grid-template-columns:minmax(0,1fr);gap:18px;min-width:0}.result-panel{width:100%;max-width:100%;min-width:0;overflow:hidden}.result-panel .table-wrap{width:100%;max-width:100%;overflow-x:auto}
.result-status{background:var(--vbc-blue-dark);color:var(--vbc-white);border-radius:18px;padding:25px 28px;display:flex;justify-content:space-between;align-items:center}.result-status h2{margin:0}.result-status span{background:var(--vbc-orange-soft);color:var(--vbc-orange-text);padding:8px 12px;border-radius:99px;font-weight:800}.result-tabs{position:sticky;top:10px;z-index:4;display:flex;gap:5px;overflow-x:auto;background:var(--vbc-white);border:1px solid var(--line);border-radius:12px;padding:8px}.result-tabs a{white-space:nowrap;text-decoration:none;color:var(--ink);padding:8px 11px;border-radius:7px;font-weight:700}.result-tabs a:hover{background:var(--surface)}
.result-panel h3{margin-top:0;font-size:23px}.result-panel details{margin-top:6px;color:var(--muted);font-size:12px}.notice{border-left:4px solid var(--vbc-blue-equipment);background:var(--surface);padding:14px 17px;margin:10px 0;border-radius:5px}.notice.high{border-color:var(--vbc-orange-accent)}.notice.critical{border-color:var(--vbc-danger);background:var(--vbc-danger-soft)}.notice p{margin:4px 0}.result-meta{display:grid;grid-template-columns:160px 1fr;gap:10px}.result-panel pre{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--vbc-blue-dark);color:var(--vbc-blue-soft);padding:18px;border-radius:9px}.calculation-results table{min-width:1080px}
.profile-trace{display:grid;gap:5px;padding:18px 22px;border:1px solid var(--vbc-blue-equipment);background:var(--vbc-blue-soft);border-radius:14px}.profile-trace.modified{border-color:var(--vbc-orange-accent);background:var(--vbc-orange-soft)}.profile-trace span{color:var(--muted)}.panel-title{display:flex;justify-content:space-between;gap:20px;align-items:start}.panel-title h3{margin:0}.panel-title>span{background:var(--vbc-blue-soft);color:var(--vbc-blue-text);border-radius:99px;padding:7px 11px;font-weight:700}.principal-group{margin-top:24px}.principal-group h4{margin:0 0 10px}.value-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.value-card{display:grid;align-content:start;gap:10px;padding:15px;border:1px solid var(--line);border-radius:11px;background:var(--surface)}.value-card small{min-height:32px;color:var(--muted);font-weight:700}.value-card strong{font-size:23px;color:var(--vbc-blue-text)}.copy-value{width:max-content;border:1px solid var(--vbc-blue-equipment);background:var(--vbc-white);color:var(--vbc-blue-text);border-radius:7px;padding:6px 9px;font-weight:800;cursor:pointer}.recommended-cell{background:var(--vbc-blue-soft)}.recommended-cell strong{display:block;color:var(--vbc-blue-text);font-size:16px}.recommended-cell .copy-value{margin-top:7px}.verification{display:block;margin-top:5px;color:var(--vbc-orange-text)}.value-details ul{margin:8px 0;padding-left:18px}.value-details p{margin:6px 0}
.sidebar{overflow-y:auto}.sidebar nav{gap:3px;margin-top:30px}.sidebar nav a{padding:8px 12px}.nav-group{color:var(--vbc-blue-equipment);font-size:10px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;padding:16px 12px 2px}.cell-note{display:block;color:var(--muted);max-width:460px}.admin-create{margin-top:20px}.admin-create>summary{cursor:pointer;font-weight:800;font-size:18px}.admin-create form{display:grid;gap:18px;margin-top:20px}.code-area{min-height:360px!important;font:12px/1.5 ui-monospace,SFMono-Regular,monospace!important}
@media(max-width:700px){.calculator-shell{padding:42px 0 70px}.topbar{height:auto;min-height:74px}.public-nav{gap:10px;font-size:13px}.form-grid,.two-column-block{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.calculate-bar{align-items:stretch;flex-direction:column;bottom:8px}.calculate-bar button{width:100%}.result-status,.panel-title{align-items:start;flex-direction:column;gap:12px}.result-meta{grid-template-columns:1fr}.calculator-intro h1{font-size:40px}.value-card-grid{grid-template-columns:1fr}.value-card small{min-height:0}}
.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.mode-card{display:grid;gap:6px;text-align:left;border:2px solid var(--line);border-radius:15px;padding:22px;background:var(--vbc-white);color:var(--ink);cursor:pointer}.mode-card strong{font-size:20px}.mode-card span{color:var(--muted)}.mode-card:hover,.mode-card.active{border-color:var(--vbc-blue-equipment);background:var(--vbc-blue-soft);box-shadow:0 8px 24px rgba(39,138,163,.12)}.mode-fields{margin-top:20px}.mode-fields[hidden],#calculator-workflow[hidden],#series-parallel-fields[hidden]{display:none}.form-grid label small{display:block;margin-top:5px;color:var(--muted);font-weight:400}.manufacturer-data{margin-top:8px;border:1px solid var(--line);border-radius:12px;padding:15px}.manufacturer-data summary{cursor:pointer;font-weight:800}.manufacturer-data .form-grid{margin-top:16px}.connection-help{margin:18px 0 0;color:var(--muted)}.advanced-current-grid{margin-top:20px}.live-summary{border-color:var(--vbc-blue-equipment)}.battery-card{display:grid;grid-template-columns:minmax(180px,.7fr) 1.3fr;gap:28px;align-items:center;padding:22px;border-radius:14px;background:linear-gradient(135deg,var(--vbc-blue-dark),var(--vbc-blue-action));color:var(--vbc-white)}.battery-card.empty{display:block;background:var(--surface);color:var(--muted)}.battery-card.invalid{display:block;background:var(--vbc-danger-soft);color:var(--vbc-danger)}.battery-card>div{display:grid;gap:4px}.battery-card>div strong{font-size:30px}.battery-card>div span,.battery-card>div small{color:var(--vbc-blue-soft)}.battery-card dl,.battery-result-card dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}.battery-card dl div,.battery-result-card dl div{padding:10px 12px;border-radius:9px;background:rgba(255,255,255,.1)}.battery-card dt{color:var(--vbc-blue-soft);font-size:12px}.battery-card dd{font-size:18px;font-weight:800}.battery-result-card h3{font-size:clamp(24px,4vw,38px);color:var(--vbc-blue-text)}.battery-result-card dl div{background:var(--surface)}.value-card em{color:var(--muted);font-size:11px;font-style:normal}.value-card span{color:var(--muted);font-size:12px}.installation-advice li{margin:8px 0}.mandatory-advice{padding:16px;border-left:4px solid var(--vbc-blue-equipment);background:var(--vbc-blue-soft);font-weight:700}.calculation-reference{overflow-wrap:anywhere;color:var(--muted)}
@media(max-width:700px){.mode-grid,.battery-card,.battery-card dl,.battery-result-card dl{grid-template-columns:1fr}.mode-card{padding:18px}.battery-card{gap:16px}.phase4-page .calculator-intro h1{font-size:38px}.phase4-page .calc-block{padding:20px}.phase4-page .calculate-bar{position:static}.phase4-page .calculation-results table{min-width:0}}

.stale-result-notice{margin-top:38px;padding:18px 20px;border:1px solid var(--vbc-blue-equipment);border-left:5px solid var(--vbc-orange-accent);border-radius:10px;background:var(--vbc-blue-soft);color:var(--vbc-blue-dark);font-weight:750}
.setup-guide-group{display:grid;gap:14px;margin-top:24px;padding-top:22px;border-top:3px solid var(--vbc-orange-accent)}
.result-panel .setup-guide{margin:0;border:1px solid var(--vbc-gray-200);border-radius:12px;background:var(--vbc-gray-050);color:var(--ink);font-size:14px;overflow:hidden}
.setup-guide>summary{cursor:pointer;padding:15px 18px;color:var(--vbc-blue-text);font-size:15px;font-weight:800}
.setup-guide[open]>summary{border-bottom:1px solid var(--vbc-gray-200);background:var(--vbc-blue-soft)}
.guide-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 18px 0}
.guide-toolbar button,.guide-toolbar a{border:1px solid var(--vbc-blue-equipment);border-radius:8px;padding:8px 11px;background:var(--vbc-white);color:var(--vbc-blue-text);font:inherit;font-weight:800;text-decoration:none;cursor:pointer}
.setup-guide figure{margin:16px 18px}
.guide-canvas{display:block;width:100%;height:auto;max-width:760px;margin-inline:auto;overflow:hidden;border:1px solid var(--vbc-gray-300);background:var(--vbc-gray-100)}
.guide-source-image{pointer-events:none}
.guide-field-box{fill:none;stroke:var(--vbc-orange-accent);stroke-width:3}
.guide-value-cover{fill:var(--vbc-white);fill-opacity:.94}
.guide-value-text{fill:var(--vbc-blue-text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-weight:800}
.guide-x-mark{fill:none;stroke:var(--vbc-orange-accent);stroke-width:4;stroke-linecap:round}
.setup-guide figcaption{margin-top:8px;color:var(--vbc-gray-600);font-size:13px}
.guide-legend,.guide-source-note{margin:12px 18px;padding:11px 13px;border-radius:8px;background:var(--vbc-blue-soft)}
.guide-legend strong:last-of-type{color:var(--vbc-orange-text)}
.guide-text-equivalent{margin:12px 18px;padding-left:22px}
.guide-text-equivalent li{margin:7px 0}
.guide-source-note{border-left:4px solid var(--vbc-orange-accent);background:var(--vbc-orange-soft);color:var(--vbc-orange-text)}
.setup-guide-dialog{width:min(1100px,calc(100% - 32px));max-height:calc(100vh - 32px);padding:20px;border:1px solid var(--vbc-gray-300);border-radius:14px;background:var(--vbc-white);color:var(--ink)}
.setup-guide-dialog::backdrop{background:rgba(11,58,99,.72)}
.guide-dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:16px}
.guide-dialog-heading h2{margin:0;color:var(--vbc-blue-dark)}
.guide-dialog-heading button{background:var(--vbc-blue-action);color:var(--vbc-white)}
.setup-guide-dialog figure{margin:0}
.setup-guide-dialog .guide-canvas{max-width:none}

@media(max-width:700px){
  .stale-result-notice{margin-top:26px}
  .guide-toolbar{align-items:stretch;flex-direction:column}
  .guide-toolbar button,.guide-toolbar a{text-align:center}
  .setup-guide figure,.guide-legend,.guide-text-equivalent,.guide-source-note{margin-left:12px;margin-right:12px}
  .guide-value-text{font-size:14px}
  .setup-guide-dialog{width:calc(100% - 16px);max-height:calc(100vh - 16px);padding:12px}
}