body{overflow-x:hidden;overflow-y:hidden}:root{--box-shelf-pricebar-h: 92px}.box-shelf{display:grid;grid-template-columns:520px 1fr;height:calc(100vh - 70px);min-height:calc(100vh - 70px);align-items:start;overflow:hidden;background:var(--gray1)}.box-shelf .sidebar{background:#fff;border-right:1px solid var(--gray2);padding:32px;box-sizing:border-box;height:100%;overflow-y:auto;overflow-x:hidden}.box-shelf .viewer{background:#f8fafc;position:relative;height:100%;align-self:start;min-width:0;min-height:0}.box-shelf .Side3D{width:100%;height:100%;min-width:0}.box-shelf #bg{width:100%;height:100%;display:block}.calc-form{display:flex;flex-direction:column;gap:28px}.calc-form h2{margin:0;font-size:28px;line-height:1.1;color:var(--gray7);max-width:100%;text-wrap:balance}.calc-group{display:flex;flex-direction:column;gap:14px}.calc-group h2{margin:0 0 6px;font-size:16px;color:var(--gray5)}.calc-row{display:flex;flex-direction:column;gap:8px;position:relative}.calc-row 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input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.box-shelf input[type=number]{-moz-appearance:textfield}.price-card{margin-top:6px;padding:20px 22px;border-radius:0 0 16px 16px;background:#fff;box-shadow:0 20px 30px rgba(15,23,42,.1);display:flex;align-items:center;gap:18px;justify-content:space-between}.price-card--overlay{position:absolute;top:0;left:40px;right:40px;margin-top:0;z-index:5}.price-label{font-size:13px;color:var(--gray4)}.price-value{font-size:28px;font-weight:800;color:var(--text-color);padding:10px}.btn-next{background:var(--secondary);color:#111;border:none;padding:10px 26px;border-radius:999px;font-weight:700;cursor:pointer}.btn-next:hover{background:var(--secondary2)}input[type=range]{-webkit-appearance:none;width:100%;height:6px;background:var(--gray2);border-radius:4px;outline:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:var(--primary1);border-radius:50%;border:3px solid #fff;box-shadow:0 2px 6px rgba(0,0,0,.2);cursor:pointer}.hidden{display:none}.calculator-guide{position:fixed;top:0;right:0;bottom:0;left:0;z-index:300}.calculator-guide__backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(15,23,42,.42)}.calculator-guide__dialog{position:relative;z-index:1;width:min(1200px,calc(100vw - 32px));min-height:min(720px,calc(100vh - 48px));margin:min(3vh,24px) auto;background:#fff;border-radius:16px;border:1px solid #e5e7eb;box-shadow:0 18px 40px rgba(15,23,42,.16);display:grid;grid-template-columns:40px minmax(0,1fr) 40px;overflow:visible}.calculator-guide__content{display:grid;grid-template-columns:minmax(240px,320px) minmax(0,1fr);align-items:start}.calculator-guide__text{padding:22px 18px;background:linear-gradient(180deg,#fff,#f8fbfd);border-right:1px solid #e5e7eb;display:flex;flex-direction:column;gap:10px;align-self:start;border-radius:16px 0 0 16px}.calculator-guide__eyebrow{align-self:flex-start;padding:5px 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rgba(15,23,42,.18);display:flex;align-items:center;justify-content:center;padding:0}.main-footer{background:#0f172a;color:#fff;padding:18px 24px}.footer-container{max-width:1300px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.footer-right{display:flex;gap:18px}.footer-right a{color:#fff;text-decoration:none;font-weight:500}.footer-right a:hover{color:var(--secondary)}@media (max-width: 1200px){.calculator-guide__content{grid-template-columns:280px minmax(0,1fr)}}@media (max-width: 768px){.calculator-guide__dialog{width:min(100vw - 48px,980px);min-height:calc(100vh - 48px);margin:24px auto;grid-template-columns:48px minmax(0,1fr) 48px}.calculator-guide__content{grid-template-columns:1fr}.calculator-guide__text{padding:24px 18px 14px;border-right:0;border-bottom:1px solid #e5e7eb}.calculator-guide__copy{min-height:56px;padding:14px 16px}.calculator-guide__media{padding:14px}}@media (max-width: 600px){.calculator-guide{display:flex;align-items:center;justify-content:center;padding:10px}.calculator-guide__dialog{width:100%;min-height:auto;max-height:calc(100vh - 20px);margin:auto;border-radius:20px;grid-template-columns:36px minmax(0,1fr) 36px;box-shadow:0 18px 36px rgba(15,23,42,.2)}.calculator-guide__content{align-items:stretch}.calculator-guide__text{padding:18px 14px 12px;gap:8px;border-radius:20px 20px 0 0}.calculator-guide__eyebrow{padding:4px 8px;font-size:10px}.calculator-guide__counter{font-size:12px}.calculator-guide__slide-title{font-size:20px}.calculator-guide__copy{padding:10px 12px;border-radius:12px;font-size:14px;line-height:1.45}.calculator-guide__media{padding:10px;background:linear-gradient(180deg,#fff,#f4f8fb)}.calculator-guide__image{max-height:42vh;border-radius:14px;box-shadow:0 10px 24px rgba(15,23,42,.08)}.calculator-guide__nav{width:28px;height:28px;font-size:20px;background:#fff;box-shadow:0 4px 12px rgba(15,23,42,.1)}.calculator-guide__close{top:8px;right:8px;width:34px;height:34px;font-size:22px;box-shadow:0 6px 16px rgba(15,23,42,.14)}}@media (max-width: 1100px){body{overflow-y:auto}.box-shelf{grid-template-columns:1fr;height:auto;min-height:calc(100vh - 70px);overflow:visible}.box-shelf .sidebar{height:auto;overflow:visible;border-right:none;border-bottom:1px solid var(--gray2)}.box-shelf .viewer{height:60vh;min-height:420px}.price-card{flex-direction:column;align-items:flex-start}}@media (max-width: 768px){.box-shelf{padding-top:var(--box-shelf-pricebar-h)}.box-shelf .sidebar{padding:24px 18px}.box-shelf .viewer{height:auto;min-height:0;padding:16px 12px 24px}.box-shelf .Side3D{height:52vh;min-height:320px;border-radius:18px;overflow:hidden;background:#f8fafc;box-shadow:inset 0 0 0 1px rgba(148,163,184,.16)}.price-card--overlay{position:fixed;left:0;right:0;top:60px;margin-top:0;z-index:60;border-radius:0 0 14px 14px;transition:top .2s ease}.price-card--overlay.scrolled{top:0}.price-card{padding:18px;gap:14px;border-radius:0 0 14px 14px;flex-direction:row;align-items:center;justify-content:space-between}.price-value{font-size:24px;padding:0}.btn-next{width:auto;min-width:160px;padding:12px 18px;white-space:nowrap;flex:0 0 auto}.box-shelf .acc{align-items:flex-start;flex-direction:column}.box-shelf .acc-stepper{width:100%;justify-content:space-between}.box-shelf .acc-input{width:100%}}@media (max-width: 600px){.box-shelf{min-height:calc(100vh - 64px);padding-top:var(--box-shelf-pricebar-h)}.calc-form{gap:22px}.calc-group{gap:12px}.calc-row label,.perf-wall-accessories__title{font-size:12px}.toggle-row{padding:10px 12px}.range-meta{gap:10px}.range-value,.range-max{font-size:11px}.box-shelf .viewer{padding:14px 10px 20px}.box-shelf .Side3D{height:46vh;min-height:280px}.box-shelf .acc{padding:10px 12px}.box-shelf .acc-name{font-size:13px}.box-shelf .acc-btn{width:30px;height:30px}.price-card{padding:16px}.price-value{font-size:22px}.btn-next{min-width:140px}}