:root{--green:#6abf2e;--green-dark:#57a023;--green-light:#7dd63e;--header:#2c3e50;--body-bg:#f0f4f8;--card-bg:#fff;--card-border:#e0e7ee;--label:#37474f;--input-border:#cfd8dc;--unit-bg:#e8edf2;--unit-text:#607d8b;--shadow:0 2px 14px rgba(44,62,80,.09);--shadow-btn:0 4px 14px rgba(106,191,46,.35);--purple:#7c4dff}.kalkulator-page *{box-sizing:border-box;margin:0;padding:0}body.kalkulator-page{font-family:Nunito,sans-serif;background:var(--body-bg);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;margin:0}#kalkulator-app{width:100%;display:flex;align-items:center;justify-content:center}.calc-wrap{width:100%;max-width:960px;border-radius:18px;overflow:hidden;box-shadow:0 10px 50px #2c3e5029;background:var(--card-bg)}.calc-header{background:var(--header);display:flex;align-items:center;justify-content:space-between;padding:0 32px;height:62px;gap:16px}.calc-header h2{color:#fff;font-size:1.1rem;font-weight:800;white-space:nowrap;letter-spacing:.01em}.step-nav{display:flex;align-items:center;gap:4px}.step-dot{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;color:#ffffff73;cursor:pointer;transition:all .2s;flex-shrink:0;border:none;background:transparent;font-family:Nunito,sans-serif}.step-dot:hover{color:#ffffffb3}.step-dot.active{background:var(--green);color:#fff;border-radius:0;clip-path:polygon(0 0,100% 0,100% 68%,50% 100%,0 68%);width:38px;height:42px;font-size:1rem}.step-dot.done{color:#ffffffbf}.calc-body{background:var(--body-bg);padding:30px 32px;min-height:460px}.calc-footer{background:var(--body-bg);padding:0 32px 30px;display:flex;justify-content:space-between;align-items:center}.step-page{animation:fadeIn .3s ease both}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.calc-loading{display:flex;align-items:center;justify-content:center;min-height:460px;color:var(--label);font-weight:700}.calc-spinner{width:36px;height:36px;border:3px solid rgba(106,191,46,.25);border-top-color:var(--green);border-radius:50%;animation:calcspin .8s linear infinite;margin-right:12px}@keyframes calcspin{to{transform:rotate(360deg)}}.btn-nav{border:none;border-radius:8px;padding:12px 36px;font-family:Nunito,sans-serif;font-weight:800;font-size:.97rem;cursor:pointer;transition:all .18s;letter-spacing:.01em}.btn-green{background:var(--green);color:#fff;box-shadow:var(--shadow-btn)}.btn-back{background:#90a4ae;color:#fff;box-shadow:0 2px 8px #0000001f}.btn-back:hover{background:#78909c;transform:translateY(-1px)}.btn-green:hover{background:var(--green-dark);transform:translateY(-1px);box-shadow:0 6px 20px #6abf2e73}.btn-green:active{transform:translateY(0)}.btn-green:disabled{opacity:.65;cursor:wait;transform:none}.intro-title{color:var(--green);font-size:1.6rem;font-weight:900;margin-bottom:14px}.intro-text{color:#546e7a;font-size:.97rem;line-height:1.65;margin-bottom:22px;text-align:justify}.intro-subtitle{font-weight:800;font-size:1rem;color:var(--label);margin-bottom:12px}.intro-list{list-style:none;padding:0}.intro-list li{display:flex;gap:10px;font-size:.93rem;color:#546e7a;margin-bottom:9px;align-items:flex-start;line-height:1.5}.intro-list li:before{content:"•";color:var(--green);font-size:1.1rem;line-height:1.3;flex-shrink:0}.type-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.type-card{background:#fff;border:2px solid var(--card-border);border-radius:12px;overflow:hidden;cursor:pointer;transition:border-color .2s,box-shadow .2s;box-shadow:var(--shadow);display:flex;flex-direction:column}.type-card:hover{border-color:var(--green);box-shadow:0 4px 20px 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16px;display:flex;justify-content:center}.wall-card{background:#fff;border:1.5px solid var(--card-border);border-radius:12px;padding:26px 26px 22px;box-shadow:var(--shadow);margin-bottom:18px;animation:fadeIn .3s ease both}.wall-card-title{font-weight:800;font-size:.95rem;color:var(--label);margin-bottom:16px;display:flex;justify-content:space-between;align-items:center}.btn-remove{background:none;border:1.5px solid #e0e7ee;color:#b0bec5;border-radius:6px;padding:3px 10px;font-size:.78rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:Nunito,sans-serif}.btn-remove:hover{border-color:#e57373;color:#e57373}.fields-row{display:flex;gap:28px;flex-wrap:wrap;margin-bottom:16px}.field-group{flex:0 0 auto}.field-label{font-weight:700;font-size:.86rem;color:var(--label);margin-bottom:7px;display:block}.field-label .label-note{font-size:.75rem;color:#90a4ae;font-weight:600}.input-unit{display:flex;border:1.5px solid var(--input-border);border-radius:8px;overflow:hidden;width:175px;background:#fff}.input-unit input[type=number]{flex:1;border:none;outline:none;padding:9px 13px;font-family:Nunito,sans-serif;font-size:.97rem;font-weight:600;color:#37474f;background:transparent;-moz-appearance:textfield;width:100%;min-width:0}.input-unit input::-webkit-inner-spin-button,.input-unit input::-webkit-outer-spin-button{-webkit-appearance:none}.input-unit:focus-within{border-color:var(--green);box-shadow:0 0 0 3px #6abf2e21}.unit-tag{background:var(--unit-bg);color:var(--unit-text);font-weight:700;font-size:.85rem;padding:9px 13px;border-left:1.5px solid var(--input-border);display:flex;align-items:center}.btn-add-wall{background:var(--green);color:#fff;border:none;border-radius:7px;padding:7px 16px;font-family:Nunito,sans-serif;font-weight:700;font-size:.83rem;cursor:pointer;display:inline-flex;align-items:center;gap:6px;margin-top:4px;transition:all 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16px}.fb-title{font-size:1.2rem}.fb-actions{flex-direction:column;align-items:stretch}.fb-actions .btn-fb{width:100%}}.prefill-note{display:flex;align-items:flex-start;gap:10px;background:#f1f8e9;border:1.5px solid #c5e1a5;border-radius:10px;padding:12px 16px;margin-bottom:20px;font-size:.86rem;color:#546e7a;line-height:1.55}.prefill-note b{color:var(--label)}.prefill-note-icon{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--green);color:#fff;font-weight:900;font-size:.9rem;flex-shrink:0}.door-mode-block{margin-top:18px;padding-top:16px;border-top:1px solid var(--card-border)}.door-mode-options{display:flex;align-items:center;gap:26px;margin-top:8px;flex-wrap:wrap}.radio-label.is-disabled{opacity:.5;cursor:not-allowed}.radio-label.is-disabled input[type=radio]{cursor:not-allowed}.address-group{margin-top:4px}.address-group-title{font-weight:800;font-size:.9rem;color:var(--label);margin-bottom:10px}.address-group-title .req{color:var(--green)}.form-grid-address{display:grid;grid-template-columns:1fr 1.3fr 1.7fr;gap:16px}.summary-collapsible{padding:0}.summary-collapsible>summary{cursor:pointer;list-style:none;padding:14px 24px;margin:0;display:flex;align-items:center;justify-content:space-between;gap:10px}.summary-collapsible>summary::-webkit-details-marker{display:none}.summary-collapsible>summary:after{content:"▾";color:#90a4ae;font-size:.95rem;transition:transform .18s}.summary-collapsible[open]>summary:after{transform:rotate(180deg)}.summary-collapsible-body{padding:0 24px 18px}@media(max-width:640px){.form-grid-address{grid-template-columns:1fr;gap:12px}}.railing-type-note{font-size:.86rem;color:#78909c;margin-bottom:14px}.railing-type-note b{color:var(--label)}.choice-row{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0 18px}.choice-tile{display:flex;align-items:center;gap:12px;border:2px solid var(--card-border);border-radius:10px;padding:8px 16px 8px 10px;background:#fff;cursor:pointer;font-weight:700;font-size:.9rem;color:var(--label);-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:border-color .18s,box-shadow .18s}.choice-tile:hover{border-color:#b9d99a}.choice-tile.selected{border-color:var(--green);box-shadow:0 3px 14px #6abf2e2e}.choice-tile.is-static{cursor:default}.choice-tile input[type=radio]{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:20px;height:20px;border:2px solid var(--input-border);border-radius:50%;position:relative;cursor:pointer;flex-shrink:0;background:#fff}.choice-tile input[type=radio]:checked{border-color:var(--green)}.choice-tile input[type=radio]:checked:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:10px;height:10px;background:var(--green);border-radius:50%}.choice-row.has-error .choice-tile{border-color:#e53935;box-shadow:0 0 0 3px #e5393521}.choice-icon{width:34px;height:34px;-o-object-fit:contain;object-fit:contain;flex-shrink:0}.mount-thumb{width:56px;height:56px;-o-object-fit:cover;object-fit:cover;border-radius:8px;flex-shrink:0;background:#dce3e8}.kind-thumb{width:84px;height:84px;-o-object-fit:cover;object-fit:cover;border-radius:8px;flex-shrink:0;background:#dce3e8}.railing-length-row{margin-bottom:6px}.railing-totals{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px}.railing-total{display:flex;align-items:center;gap:14px;background:#fff;border:1.5px solid var(--card-border);border-radius:12px;padding:16px 20px;box-shadow:var(--shadow)}.railing-total img{width:40px;height:40px;-o-object-fit:contain;object-fit:contain;flex-shrink:0}.railing-total img.is-photo{width:52px;height:52px;-o-object-fit:cover;object-fit:cover;border-radius:8px;background:#dce3e8}.railing-total-label{font-size:.82rem;font-weight:700;color:#78909c}.railing-total-value{font-size:1.4rem;font-weight:900;color:var(--label);line-height:1.2}@media(max-width:640px){.choice-tile{width:100%}.railing-totals{gap:10px}.railing-total{flex-direction:column;align-items:flex-start;gap:6px;padding:12px 14px}.railing-total-value{font-size:1.15rem}}