/* VARIANT-HAUS® Kalkulačka + kontaktný formulár — verejné štýly V10 */
.vhc-calculator,.vhc-contact{--c-r:14px;--c-navy:#2c495b;--c-navy-deep:#1b3442;--c-ink:#13232c;--c-text:#34444c;--c-muted:#62717a;--c-line:#d3d9d8;--c-line-strong:#b4bdbe;--c-soft:#eef0ee;--c-soft-2:#e4e8e7;--c-eps:#d7dcdf;--c-concrete:#a2a9ae;--c-steel:#5d7d8e;--c-radius:3px;color:var(--c-ink);font-family:var(--vh-font,"Archivo VH","Segoe UI",Arial,sans-serif)}
.vhc-calculator *,.vhc-contact *{box-sizing:border-box}
.vhc-calculator [hidden],.vhc-contact [hidden]{display:none!important}

/* rám */
.vhc-calculator{background:#fff;border:1px solid var(--c-line);border-radius:var(--c-r);overflow:clip;box-shadow:0 50px 90px -60px rgba(19,35,44,.45)}

/* priebeh — tmavý pás */
.vhc-progress{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0;padding:0 clamp(12px,3vw,48px);background:var(--c-navy-deep);border-bottom:0;border-radius:0;background-image:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,0))}
.vhc-progress button{position:relative;display:flex;align-items:center;gap:14px;min-height:88px;padding:0 8px;border:0;background:transparent;color:rgba(255,255,255,.62);text-align:left;cursor:pointer;font:inherit;transition:color .25s}
.vhc-progress button:hover{color:#fff}
.vhc-progress button::after{content:"";position:absolute;left:8px;right:8px;bottom:0;height:3px;background:transparent;transition:background .25s}
.vhc-progress button span{flex:0 0 auto;display:grid;place-items:center;width:38px;height:38px;border-radius:50%;border:1.5px solid rgba(255,255,255,.35);background:transparent;color:rgba(255,255,255,.75);font-size:.8rem;font-weight:620;font-stretch:110%;font-variant-numeric:tabular-nums;transition:background .25s,border-color .25s,color .25s}
.vhc-progress button small{min-width:0;font-size:.95rem;font-weight:600;font-stretch:104%;letter-spacing:.01em;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vhc-progress button.is-active{color:#fff}
.vhc-progress button.is-active::after{background:#c6d6dd}
.vhc-progress button.is-active span{background:#fff;border-color:#fff;color:var(--c-navy-deep)}
.vhc-progress button.is-complete{color:#c6d6dd}
.vhc-progress button.is-complete span{background:rgba(198,214,221,.18);border-color:#c6d6dd;color:#fff}
.vhc-progress button:focus-visible{outline:2px solid #c6d6dd;outline-offset:-4px}

/* formulár */
.vhc-form{padding:clamp(28px,5vw,80px) clamp(20px,5vw,80px)}
.vhc-step{max-width:62rem;margin:0 auto}
.vhc-step-head{display:grid;grid-template-columns:minmax(0,1fr);margin:0 0 clamp(1.75rem,3vw,2.75rem)}
.vhc-step-head>p{margin:0 0 .75rem;font-size:.76rem;font-weight:620;font-stretch:110%;letter-spacing:.12em;color:var(--c-navy)}
.vhc-step-head h3{max-width:22ch;margin:0 0 .6rem;font-size:clamp(1.75rem,1.2rem + 1.8vw,3rem);line-height:1.08;font-weight:640;font-stretch:108%;letter-spacing:-.022em;color:var(--c-ink);text-wrap:balance}
.vhc-step-head>span{max-width:44rem;font-size:1rem;line-height:1.6;color:var(--c-muted)}

.vhc-project-choice{margin:0 0 2rem;padding:1.25rem 1.35rem;background:var(--c-soft);border:1px solid var(--c-line);border-radius:var(--c-radius)}
.vhc-check{display:flex;align-items:flex-start;gap:14px;cursor:pointer}
.vhc-check input{flex:0 0 auto;width:20px;height:20px;margin:2px 0 0;accent-color:var(--c-navy-deep);cursor:pointer}
.vhc-check span{display:block;min-width:0}
.vhc-check b{display:block;font-size:1rem;font-weight:600;line-height:1.4}
.vhc-check small{display:block;margin-top:3px;font-size:.88rem;line-height:1.5;color:var(--c-muted)}
.vhc-check small a{color:var(--c-navy);text-decoration:underline;text-underline-offset:2px}

.vhc-upload{position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;min-height:150px;margin-top:1rem;padding:24px;text-align:center;background:#fff;border:1.5px dashed var(--c-line-strong);border-radius:var(--c-radius);transition:border-color .2s,background .2s}
.vhc-upload:hover,.vhc-upload.is-drag{border-color:var(--c-navy);background:#f6f9fa}
.vhc-upload input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.vhc-upload__body strong{display:block;margin-bottom:4px;font-weight:620}
.vhc-upload__body span{display:block;font-size:.94rem;color:var(--c-muted)}
.vhc-upload__body small{display:block;margin-top:8px;font-size:.8rem;color:var(--c-muted)}
.vhc-upload__file{position:relative;z-index:1;max-width:100%;padding:.6rem .9rem;border-radius:var(--c-radius);background:var(--c-soft-2);font-size:.9rem;font-weight:600;overflow-wrap:anywhere}

.vhc-grid{display:grid;gap:0 clamp(16px,2.5vw,32px)}
.vhc-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.vhc-field{display:block;min-width:0;margin:0 0 1.25rem}
.vhc-field>span,.vhc-label{display:block;margin:0 0 .5rem;font-size:.82rem;font-weight:620;font-stretch:104%;letter-spacing:.02em;color:var(--c-text)}
.vhc-field input[type=text],.vhc-field input[type=email],.vhc-field input[type=tel],.vhc-field input[type=number],.vhc-field input[type=file],.vhc-field select,.vhc-field textarea{width:100%;min-height:54px;padding:.8rem 1rem;border:1px solid var(--c-line-strong);border-radius:var(--c-radius);background:#fff;color:var(--c-ink);font:inherit;font-size:1rem;outline:none;transition:border-color .15s,box-shadow .15s;-webkit-appearance:none;appearance:none}
.vhc-field input[type=file]{padding:.7rem;min-height:56px;font-size:.92rem}
.vhc-field select{padding-right:2.75rem;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%232c495b' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 1rem center;cursor:pointer}
.vhc-field textarea{min-height:130px;resize:vertical;line-height:1.55}
.vhc-field input:hover,.vhc-field select:hover,.vhc-field textarea:hover{border-color:#8f9b9e}
.vhc-field input:focus,.vhc-field select:focus,.vhc-field textarea:focus{border-color:var(--c-navy-deep);box-shadow:0 0 0 3px rgba(44,73,91,.16)}
.vhc-field input[aria-invalid=true],.vhc-field input:user-invalid,.vhc-field select:user-invalid,.vhc-field textarea:user-invalid{border-color:#a2473b}
.vhc-field small{display:block;margin-top:.4rem;font-size:.82rem;line-height:1.45;color:var(--c-muted)}
.vhc-unit{position:relative;display:flex;align-items:center}
.vhc-unit input{padding-right:3.25rem!important;font-variant-numeric:tabular-nums}
.vhc-unit em{position:absolute;right:1rem;font-style:normal;font-size:.95rem;font-weight:500;color:var(--c-muted);pointer-events:none}

.vhc-live{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:.5rem;border-top:1px solid var(--c-ink);border-bottom:1px solid var(--c-line)}
.vhc-live div{padding:1.1rem 0}
.vhc-live div+div{padding-left:clamp(16px,2.5vw,32px);border-left:1px solid var(--c-line)}
.vhc-live span{display:block;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--c-muted)}
.vhc-live strong{display:block;margin-top:.3rem;font-size:clamp(1.5rem,1.2rem + 1vw,2.2rem);line-height:1.1;font-weight:620;font-stretch:112%;letter-spacing:-.02em;color:var(--c-ink);font-variant-numeric:tabular-nums}

/* výber systému */
.vhc-systems{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(10px,1.5vw,18px)}
.vhc-system{position:relative;display:flex;flex-direction:column;min-width:0;padding:clamp(18px,2vw,28px);border:1.5px solid var(--c-line);border-radius:var(--c-radius);background:#fff;cursor:pointer;transition:border-color .2s,box-shadow .2s,background .2s}
.vhc-system:hover{border-color:var(--c-line-strong)}
.vhc-system.is-selected{border-color:var(--c-navy-deep);box-shadow:inset 0 0 0 1px var(--c-navy-deep);background:#f7f9fa}
.vhc-system:has(input:focus-visible){outline:2px solid var(--c-steel);outline-offset:3px}
.vhc-system input{position:absolute;opacity:0;pointer-events:none}
.vhc-system::before{content:"";position:absolute;right:18px;top:18px;width:22px;height:22px;border-radius:50%;border:1.5px solid var(--c-line-strong);background:#fff;transition:all .2s}
.vhc-system.is-selected::before{border:6px solid var(--c-navy-deep)}
.vhc-system__size{display:block;white-space:nowrap;margin:0 0 .75rem;font-size:clamp(2.4rem,1.8rem + 1.6vw,3.4rem);line-height:1;font-weight:600;font-stretch:118%;letter-spacing:-.03em;color:var(--c-ink);font-variant-numeric:tabular-nums}
.vhc-system__size small{margin-left:4px;font-size:.36em;font-weight:560;letter-spacing:0;color:var(--c-muted)}
.vhc-system::after{content:"";order:2;display:block;height:10px;margin:0 0 1.1rem;box-shadow:inset 0 0 0 1px rgba(19,35,44,.1)}
.vhc-system:has(input[value="25"])::after{width:55.6%;background:linear-gradient(90deg,var(--c-eps) 0 20%,var(--c-concrete) 20% 80%,var(--c-eps) 80%)}
.vhc-system:has(input[value="35"])::after{width:77.8%;background:linear-gradient(90deg,var(--c-eps) 0 42.9%,var(--c-concrete) 42.9% 85.7%,var(--c-eps) 85.7%)}
.vhc-system:has(input[value="45"])::after{width:100%;background:linear-gradient(90deg,var(--c-eps) 0 55.6%,var(--c-concrete) 55.6% 88.9%,var(--c-eps) 88.9%)}
.vhc-system__size{order:1}
.vhc-system strong{order:3;display:block;font-size:1.02rem;font-weight:620}
.vhc-system em{order:4;display:block;margin-top:.3rem;font-style:normal;font-size:.9rem;line-height:1.45;color:var(--c-muted)}

.vhc-openings{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(20px,4vw,56px);margin-top:clamp(2rem,3.5vw,3rem);padding-top:clamp(2rem,3.5vw,3rem);border-top:1px solid var(--c-line)}
.vhc-openings .vhc-label{color:var(--c-navy);letter-spacing:.1em;text-transform:uppercase;font-size:.76rem}
.vhc-openings h4{margin:0 0 .5rem;font-size:clamp(1.25rem,1.1rem + .5vw,1.6rem);line-height:1.2;font-weight:620;font-stretch:106%;letter-spacing:-.015em;color:var(--c-ink)}
.vhc-openings p{margin:0;font-size:.97rem;line-height:1.6;color:var(--c-muted)}
.vhc-check--compact{margin:.25rem 0 1.25rem}
.vhc-check--compact b{font-size:.95rem}

/* výsledky */
.vhc-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--c-radius);overflow:hidden}
.vhc-results article{display:flex;flex-direction:column;min-width:0;padding:clamp(18px,2vw,28px);background:#fff}
.vhc-results span{font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;line-height:1.35;color:var(--c-muted)}
.vhc-results strong{display:block;margin:.85rem 0 .25rem;font-size:clamp(1.8rem,1.3rem + 1.6vw,2.8rem);line-height:1;font-weight:600;font-stretch:112%;letter-spacing:-.025em;color:var(--c-ink);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.vhc-results em{font-style:normal;font-size:.88rem;color:var(--c-muted)}
.vhc-results__price{background:var(--c-navy-deep)!important}
.vhc-results__price span,.vhc-results__price em{color:#c6d6dd}
.vhc-results__price strong{color:#fff}
.vhc-disclaimer{margin-top:1.5rem;padding:1.1rem 1.25rem;border-left:4px solid var(--c-navy);background:var(--c-soft);border-radius:0 var(--c-radius) var(--c-radius) 0}
.vhc-disclaimer strong{font-size:.95rem;font-weight:620}
.vhc-disclaimer p{margin:.3rem 0 0;font-size:.9rem;line-height:1.55;color:var(--c-text)}

/* odoslanie */
.vhc-consent{margin:.5rem 0 1.5rem}
.vhc-submit-status{margin:.5rem 0;font-size:.95rem}
.vhc-submit-status:empty{display:none}
.vhc-submit-status.is-error{padding:.9rem 1rem;border-left:4px solid #a2473b;background:#f8ebe8;color:#7a2d23}
.vhc-submit-status.is-success{padding:.9rem 1rem;border-left:4px solid #2e6a47;background:#e8f2ec;color:#235236}
.vhc-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;max-width:62rem;margin:clamp(2rem,4vw,3rem) auto 0;padding-top:1.5rem;border-top:1px solid var(--c-line)}
.vhc-actions button,.vhc-submit{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 1.75rem;border-radius:var(--c-radius);font:inherit;font-size:.95rem;font-weight:600;font-stretch:104%;letter-spacing:.01em;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.vhc-back{margin-right:auto;border:1px solid var(--c-line-strong);background:#fff;color:var(--c-ink)}
.vhc-back:hover{border-color:var(--c-ink)}
.vhc-next,.vhc-submit{border:1px solid var(--c-navy-deep);background:var(--c-navy-deep);color:#fff}
.vhc-next:hover,.vhc-submit:hover{background:var(--c-ink);border-color:var(--c-ink)}
.vhc-next::after{content:"";width:7px;height:7px;margin-left:12px;border-top:1.5px solid currentColor;border-right:1.5px solid currentColor;transform:rotate(45deg)}
.vhc-actions button:disabled,.vhc-submit:disabled{opacity:.55;cursor:wait}
.vhc-actions button:focus-visible,.vhc-submit:focus-visible{outline:2px solid var(--c-steel);outline-offset:3px}
.vhc-hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important}

/* kontaktný formulár */
.vhc-contact{padding:clamp(22px,4vw,56px);background:#fff;border:1px solid var(--c-line);border-radius:var(--c-r);box-shadow:0 50px 90px -60px rgba(19,35,44,.45)}
.vhc-contact .vhc-submit{margin-top:.5rem;min-width:14rem}

.vhc-admin-shortcut{position:fixed;left:18px;bottom:18px;z-index:99999;display:inline-flex;align-items:center;min-height:42px;padding:0 14px;border-radius:3px;background:#1b3442;color:#fff!important;font:600 13px/1.1 "Archivo VH","Segoe UI",system-ui,sans-serif;text-decoration:none!important;box-shadow:0 10px 30px rgba(0,0,0,.2)}

@media(max-width:900px){
  .vhc-systems{grid-template-columns:1fr}
  .vhc-system{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:20px;align-items:center;padding-right:56px}
  .vhc-system__size{grid-row:1/4;margin:0}
  .vhc-system::after{grid-column:2;margin:0 0 .6rem}
  .vhc-system strong,.vhc-system em{grid-column:2}
  .vhc-system::before{top:50%;margin-top:-11px}
  .vhc-openings{grid-template-columns:1fr}
  .vhc-results{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:640px){
  .vhc-calculator{margin-inline:calc(-1*var(--vh-gutter,20px) + 8px);border-radius:12px}
  .vhc-progress{border-radius:0}
  .vhc-progress{padding:0 6px}
  .vhc-progress button{flex-direction:column;justify-content:center;gap:6px;min-height:78px;padding:0 2px;text-align:center}
  .vhc-progress button small{font-size:.74rem;max-width:100%}
  .vhc-progress button::after{left:2px;right:2px}
  .vhc-form{padding:28px 18px 22px}
  .vhc-grid--2{grid-template-columns:1fr}
  .vhc-live{grid-template-columns:1fr}
  .vhc-live div+div{padding-left:0;border-left:0;border-top:1px solid var(--c-line)}
  .vhc-system{grid-template-columns:auto minmax(0,1fr);column-gap:14px;padding:16px 50px 16px 16px}
  .vhc-system::before{right:14px}
  .vhc-results{grid-template-columns:1fr}
  .vhc-results article{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:10px;align-items:baseline;padding:16px 18px}
  .vhc-results span{grid-column:1/-1}
  .vhc-results strong{margin:.4rem 0 0;font-size:1.9rem}
  .vhc-results em{align-self:end}
  .vhc-actions{position:sticky;bottom:0;z-index:3;margin-inline:-18px;padding:12px 18px calc(12px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
  .vhc-actions button{flex:1 1 0;padding:0 1rem}
  .vhc-back{margin-right:0}
  .vhc-contact{padding:22px 18px}
  .vhc-contact .vhc-submit{width:100%}
}
@media(prefers-reduced-motion:reduce){.vhc-calculator *,.vhc-contact *{transition:none!important}}