.vrdh{--vrdh-acc:#cb6d32;--vrdh-btn:#a9541f;--vrdh-dark:#242a2f;--vrdh-line:#c0d8f4;--vrdh-bg:#f7f8fa;--vrdh-muted:#5d6470;margin:0 0 32px;color:var(--vrdh-dark);font-size:16px;line-height:1.5}
.vrdh *,.vrdh *::before,.vrdh *::after{box-sizing:border-box}
.vrdh-lead{margin:0 0 18px;color:var(--vrdh-muted)}
.vrdh-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:22px;align-items:start}
.vrdh-form,.vrdh-result{background:#fff;border:1px solid var(--vrdh-line);border-radius:6px;padding:20px}
.vrdh-form{display:grid;gap:14px}
.vrdh-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.vrdh-field{margin:0;padding:0;border:0;min-width:0}
.vrdh-label{display:block;margin:0 0 6px;font-size:14px;font-weight:600;line-height:1.3}
.vrdh-hint{display:block;margin-top:4px;font-size:12.5px;color:var(--vrdh-muted);line-height:1.35}
.vrdh input[type=text],.vrdh select{display:block!important;width:100%!important;min-height:44px!important;margin:0!important;padding:8px 12px!important;border:1px solid #9fb6cf!important;border-radius:4px!important;background:#fff!important;color:var(--vrdh-dark)!important;font:inherit!important;font-size:16px!important;box-shadow:none!important}
.vrdh select{padding-right:30px!important}
.vrdh input:focus-visible,.vrdh select:focus-visible,.vrdh button:focus-visible,.vrdh a:focus-visible{outline:3px solid var(--vrdh-acc)!important;outline-offset:2px}
.vrdh-unit{position:relative}
.vrdh-unit input{padding-right:40px!important}
.vrdh-unit span{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--vrdh-muted);font-size:14px;pointer-events:none}
.vrdh-switch{display:flex;gap:0;margin:0 0 8px;border:1px solid var(--vrdh-btn);border-radius:4px;overflow:hidden}
.vrdh .vrdh-switch button{flex:1;min-height:40px!important;margin:0!important;padding:6px 10px!important;border:0!important;border-radius:0!important;background:#fff!important;color:var(--vrdh-btn)!important;font:inherit!important;font-size:14px!important;font-weight:600!important;cursor:pointer;box-shadow:none!important;text-transform:none!important;letter-spacing:0!important}
.vrdh .vrdh-switch button[aria-pressed=true]{background:var(--vrdh-btn)!important;color:#fff!important}
.vrdh-examples{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--vrdh-muted)}
.vrdh .vrdh-examples button{min-height:36px!important;margin:0!important;padding:4px 12px!important;border:1px solid var(--vrdh-line)!important;border-radius:18px!important;background:var(--vrdh-bg)!important;color:var(--vrdh-dark)!important;font:inherit!important;font-size:13px!important;cursor:pointer;box-shadow:none!important;text-transform:none!important;letter-spacing:0!important}
.vrdh .vrdh-examples button:hover{border-color:var(--vrdh-acc)!important}
.vrdh-head{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:baseline;margin:0 0 12px}
.vrdh-big{font-size:30px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums lining-nums}
.vrdh-big small{font-size:16px;font-weight:600}
.vrdh-head p{margin:0;font-size:14px;color:var(--vrdh-muted)}
.vrdh-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:0 0 14px}
.vrdh-kpi div{padding:8px 10px;background:var(--vrdh-bg);border-radius:4px}
.vrdh-kpi b{display:block;font-size:18px;font-variant-numeric:tabular-nums lining-nums}
.vrdh-kpi span{font-size:12.5px;color:var(--vrdh-muted)}
.vrdh-left{display:grid;gap:16px;min-width:0}
.vrdh-figs{display:grid;grid-template-columns:1fr;gap:10px;padding:14px;background:#fff;border:1px solid var(--vrdh-line);border-radius:6px}
.vrdh-figs figure{margin:0;padding:6px;background:var(--vrdh-bg);border-radius:4px}
.vrdh-figs figcaption{font-size:12.5px;color:var(--vrdh-muted);text-align:center}
.vrdh-figs svg{display:block;width:100%;height:auto}
.vrdh-wall{fill:#e9eef4;stroke:#8fa3b8;stroke-width:1.2}
.vrdh-gable{fill:#dfe7f0;stroke:none}
.vrdh-roofline{fill:none;stroke:var(--vrdh-acc);stroke-width:4;stroke-linejoin:round;stroke-linecap:round}
.vrdh-ground{stroke:#8fa3b8;stroke-width:1.5}
.vrdh-batten{fill:#7a5a3a}
.vrdh-dim{stroke:var(--vrdh-dark);stroke-width:1;stroke-dasharray:3 3}
.vrdh-arc{fill:none;stroke:var(--vrdh-dark);stroke-width:1.2}
.vrdh-t{font:600 11px/1 system-ui,-apple-system,"Segoe UI",sans-serif;fill:var(--vrdh-dark);paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round}
.vrdh-t-acc{fill:var(--vrdh-btn)}
.vrdh-t-light{fill:#4d5562;font-weight:500}
.vrdh-slopeA{fill:#f3d8c6;stroke:var(--vrdh-acc);stroke-width:1}
.vrdh-slopeB{fill:#f8e9df;stroke:var(--vrdh-acc);stroke-width:1}
.vrdh-sheet{stroke:#b96a3b;stroke-width:.9;opacity:.75}
.vrdh-rafter{stroke:#7a5a3a;stroke-width:1.3}
.vrdh-walls{fill:none;stroke:var(--vrdh-dark);stroke-width:1;stroke-dasharray:4 3}
.vrdh-ridge{stroke:var(--vrdh-dark);stroke-width:2}
.vrdh-block{margin:14px 0 0}
.vrdh-block h3{margin:0 0 6px!important;padding:0!important;font-size:15px!important;line-height:1.3!important;text-transform:uppercase;letter-spacing:.03em;color:var(--vrdh-btn)!important}
.vrdh-list{margin:0;padding:0}
.vrdh-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:4px 12px;padding:8px 0;border-top:1px solid #e3ebf4}
.vrdh-row dt{margin:0;font-size:14.5px}
.vrdh-row dd{margin:0;font-size:14.5px;font-variant-numeric:tabular-nums lining-nums}
.vrdh-row dd small{display:block;font-size:12.5px;color:var(--vrdh-muted);line-height:1.35}
.vrdh-warn{margin:14px 0 0;font-size:13.5px}
.vrdh-warn p{margin:0 0 6px;padding:8px 10px;border-left:3px solid #c0392b;background:#fdf1ef}
.vrdh-warn p.vrdh-ok{border-left-color:var(--vrdh-line);background:var(--vrdh-bg)}
.vrdh-note{margin:16px 0 0;font-size:13px;color:var(--vrdh-muted)}
.vrdh-links{margin:10px 0 0;font-size:14px}
.vrdh-links a{color:var(--vrdh-btn)}
.vrdh-sticky{position:fixed;left:12px;right:12px;bottom:12px;z-index:9990;display:flex;justify-content:space-between;align-items:center;gap:10px;min-height:48px;padding:10px 14px;border-radius:6px;background:var(--vrdh-dark);color:#fff!important;text-decoration:none!important;font-size:14.5px;font-weight:600;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.vrdh-sticky[hidden]{display:none!important}
.vrdh-sticky i{font-style:normal;color:#f3c7a8;white-space:nowrap}
.vrdh [hidden]{display:none!important}
@media (max-width:799px){
  .vrdh-grid{grid-template-columns:1fr}
  .vrdh-figs{grid-template-columns:1fr 1fr}
}
@media (max-width:460px){
  .vrdh-form,.vrdh-result{padding:14px}
  .vrdh-figs{grid-template-columns:1fr;padding:8px}
  .vrdh-row{grid-template-columns:1fr}
  .vrdh-big{font-size:26px}
}
@media (prefers-reduced-motion:reduce){.vrdh *{transition:none!important;animation:none!important}}
.vrdh-faq{margin:0 0 10px;border:1px solid var(--vrdh-line,#c0d8f4);border-radius:6px;background:#fff}
.vrdh-faq summary{position:relative;display:block;padding:14px 48px 14px 16px;cursor:pointer;list-style:none;font-weight:700;font-size:17px;line-height:1.35}
.vrdh-faq summary::-webkit-details-marker{display:none}
.vrdh-faq summary::before,.vrdh-faq summary::after{content:"";position:absolute;right:18px;top:50%;width:14px;height:2px;margin-top:-1px;background:#a9541f}
.vrdh-faq summary::after{transform:rotate(90deg)}
.vrdh-faq[open] summary::after{display:none}
.vrdh-faq summary:focus-visible{outline:3px solid #cb6d32;outline-offset:2px}
.vrdh-faq-a{padding:0 16px 14px}
.vrdh-faq-a>*:last-child{margin-bottom:0}