.vxhz{--vx-ink:#1a1d23;--vx-dark:#15181e;--vx-acc:#e8732f;--vx-btn:#b4561e;--vx-btn-h:#8f4114;--vx-line:#c0d8f4;--vx-bg:#f6f8fa;--vx-muted:#5d6470;--vx-wet:#e8732f;--vx-perim:#f3b88f;--vx-floor:#dfe9f6;margin:0 0 2.2em;color:var(--vx-ink);font-size:16px;line-height:1.5}
.vxhz *,.vxhz *::before,.vxhz *::after{box-sizing:border-box}
.vxhz-lead{margin:0 0 18px;color:var(--vx-muted)}
.vxhz-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;align-items:start}
.vxhz-form{border:1px solid var(--vx-line);background:#fff;padding:20px}
.vxhz-field{border:0;margin:0 0 18px;padding:0;min-width:0}
.vxhz-field:last-child{margin-bottom:0}
.vxhz-label{display:block;margin:0 0 8px;padding:0;font-weight:600;font-size:15px;color:var(--vx-ink)}
.vxhz-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px}
.vxhz-num label{display:block;font-size:13px;color:var(--vx-muted);margin:0 0 4px}
.vxhz-num input{width:100%;min-height:44px;padding:8px 10px;border:1px solid #b9c4d2;border-radius:3px;background:#fff;font:inherit;color:var(--vx-ink)}
.vxhz-num input:disabled{background:#eef1f4;color:#7a828d}
.vxhz-num.is-off label{opacity:.7}
.vxhz-chips{display:flex;flex-wrap:wrap;gap:8px}
.vxhz-chip{position:relative;display:inline-flex;margin:0}
.vxhz-chip input{position:absolute;opacity:0;width:1px;height:1px}
.vxhz-chip span{display:flex;align-items:center;justify-content:center;text-align:center;min-height:44px;padding:8px 14px;border:1px solid #b9c4d2;border-radius:3px;background:#fff;font-size:14px;line-height:1.25;cursor:pointer;color:var(--vx-ink)}
.vxhz-chip input:checked+span{background:var(--vx-dark);border-color:var(--vx-dark);color:#fff}
.vxhz-chip input:focus-visible+span,.vxhz-num input:focus-visible,.vxhz-btn:focus-visible,.vxhz-sticky:focus-visible{outline:3px solid var(--vx-acc);outline-offset:2px}
.vxhz-hint{margin:8px 0 0;font-size:13px;color:var(--vx-muted)}
.vxhz-zonebox[hidden]{display:none}
.vxhz-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.vxhz-btn{display:inline-flex;align-items:center;justify-content:center;text-align:center;min-height:44px;padding:8px 18px;border:0;border-radius:3px;background:var(--vx-btn);color:#fff;font:inherit;font-weight:600;font-size:15px;cursor:pointer;text-decoration:none}
.vxhz-btn:hover{background:var(--vx-btn-h);color:#fff}
.vxhz-btn--ghost{background:transparent;color:var(--vx-ink);border:1px solid #b9c4d2}
.vxhz-btn--ghost:hover{background:var(--vx-bg);color:var(--vx-ink)}

.vxhz-result{border:1px solid var(--vx-line);background:var(--vx-bg);padding:20px;scroll-margin-top:90px}
.vxhz-result-title{margin:0 0 12px!important;font-size:21px!important;line-height:1.25!important}
.vxhz-big{display:flex;align-items:baseline;gap:8px;margin:0 0 4px;padding:0 0 12px;border-bottom:1px solid var(--vx-line)}
.vxhz-big b{font-size:34px;line-height:1;color:var(--vx-dark)}
.vxhz-big span{color:var(--vx-muted);font-size:14px}
.vxhz-split{margin:10px 0 16px;padding:0;list-style:none;font-size:14px}
.vxhz-split li{display:flex;align-items:center;gap:8px;padding:3px 0;margin:0}
.vxhz-split li i{flex:0 0 14px;height:14px;border-radius:2px}
.vxhz-split li span{flex:1}
.vxhz-i-floor{background:var(--vx-floor);border:1px solid #9fb6d3}
.vxhz-i-wet{background:var(--vx-wet)}
.vxhz-i-perim{background:var(--vx-perim)}
.vxhz-list{margin:0;padding:0}
.vxhz-list>div{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;padding:10px 0;border-top:1px solid var(--vx-line)}
.vxhz-list dt{font-weight:600;margin:0}
.vxhz-list dd{margin:0;text-align:right;font-weight:600;white-space:nowrap}
.vxhz-list small{grid-column:1/-1;color:var(--vx-muted);font-size:13px;line-height:1.4}
.vxhz-time{margin:12px 0 0;font-size:14px}
.vxhz-warn{margin:12px 0 0;padding:10px 12px;border-left:4px solid var(--vx-acc);background:#fff4ec;font-size:14px}
.vxhz-warn ul{margin:0;padding-left:18px}
.vxhz-warn li{margin:2px 0}
.vxhz-warn[hidden]{display:none}
.vxhz-note{margin:12px 0 0;font-size:14px;color:var(--vx-muted)}

.vxhz-pics{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;margin-top:22px}
.vxhz-pic{border:1px solid var(--vx-line);background:#fff;padding:14px;margin:0}
.vxhz-pic--wide{grid-column:1/-1}
.vxhz-pic figcaption{font-weight:600;font-size:15px;margin:0 0 8px}
.vxhz-pic svg{display:block;width:100%;height:auto;max-height:360px}
.vxhz-pic [data-vxhz-out="layersSvg"] svg{max-width:440px}
.vxhz-pic [data-vxhz-out="walls"] svg{max-width:820px;margin:0 auto}
.vxhz-zonebox{margin:0 0 18px}
.vxhz-legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin:8px 0 0;padding:0;list-style:none;font-size:13px;color:var(--vx-muted)}
.vxhz-legend li{display:flex;align-items:center;gap:6px;margin:0}
.vxhz-legend i{width:12px;height:12px;border-radius:2px;display:inline-block}

.vxhz-s-floor{fill:var(--vx-floor)}
.vxhz-s-zone{fill:#fbe3d2}
.vxhz-s-tub{fill:#fff;stroke:#8a929d;stroke-width:1.5}
.vxhz-s-drain{fill:#fff;stroke:#5d6470;stroke-width:2}
.vxhz-s-wall{fill:none;stroke:var(--vx-perim)}
.vxhz-s-wet{stroke:var(--vx-wet);stroke-linecap:square}
.vxhz-s-door{stroke:#fff}
.vxhz-s-swing{fill:none;stroke:#8a929d;stroke-width:1;stroke-dasharray:3 3}
.vxhz-s-pipe{fill:#2b6cb0;stroke:#fff;stroke-width:1.5}
.vxhz-s-tx{font-size:12px;fill:#5d6470;font-family:inherit}
.vxhz-s-dim{font-size:12px;fill:#3b414b;font-family:inherit}
.vxhz-s-wallbg{fill:#f1f3f6}
.vxhz-s-wallline{fill:none;stroke:#9aa3ae;stroke-width:1}
.vxhz-s-perim{fill:var(--vx-perim)}
.vxhz-s-wetfill{fill:var(--vx-wet);fill-opacity:.85}
.vxhz-s-dooropen{fill:#fff;stroke:#9aa3ae;stroke-width:1;stroke-dasharray:4 3}
.vxhz-s-l-tile{fill:#d9dde3;stroke:#8a929d}
.vxhz-s-l-glue{fill:#bfc5cd}
.vxhz-s-l-screed{fill:#c9c2b6}
.vxhz-s-l-w0{fill:#e8732f}
.vxhz-s-l-w1{fill:#c95f22}
.vxhz-s-l-primer{fill:#7fa7d6}
.vxhz-s-l-base{fill:#a7adb5}
.vxhz-s-lead{stroke:#8a929d;stroke-width:1}

.vxhz-sticky{position:fixed;left:0;right:0;bottom:0;z-index:9999;display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:52px;padding:8px 14px calc(8px + env(safe-area-inset-bottom));background:var(--vx-dark);color:#fff!important;text-decoration:none!important;font-size:14px;line-height:1.3;box-shadow:0 -2px 10px rgba(0,0,0,.2)}
.vxhz-sticky[hidden]{display:none}
.vxhz-sticky-more{flex:0 0 auto;display:flex;align-items:center;justify-content:center;min-height:36px;padding:4px 12px;border-radius:3px;background:var(--vx-btn);font-weight:600}
@media (min-width:861px){.vxhz-sticky{display:none!important}}

@media (max-width:860px){
  .vxhz-grid,.vxhz-pics{grid-template-columns:1fr}
  .vxhz-form,.vxhz-result{padding:16px}
}
@media (prefers-reduced-motion:reduce){.vxhz *{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* FAQ під калькулятором */
.vxhz-faq{border:1px solid var(--vx-line,#c0d8f4);border-radius:3px;margin:0 0 10px;background:#fff}
.vxhz-faq summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:10px 16px;cursor:pointer;font-weight:600;list-style:none}
.vxhz-faq summary::-webkit-details-marker{display:none}
.vxhz-faq summary::after{content:"+";flex:0 0 auto;font-size:22px;line-height:1;color:#e8732f}
.vxhz-faq[open] summary::after{content:"−"}
.vxhz-faq summary:focus-visible{outline:3px solid #e8732f;outline-offset:2px}
.vxhz-faq>div{padding:0 16px 12px}