.tool-header{padding:3.5rem 0 2.5rem;border-bottom:1px solid var(--paper-3)}.tool-header-eyebrow{display:flex;align-items:center;gap:12px;margin-bottom:1.25rem}.tool-header-eyebrow-line{width:32px;height:1px;background:var(--blue)}.tool-header-title{font-size:clamp(2.2rem,4vw,3.4rem);margin-bottom:1.25rem;max-width:820px}.tool-header-title em{font-style:italic;color:var(--blue)}.tool-header-sub{font-size:1.02rem;color:var(--ink-2);max-width:680px;line-height:1.75}.workspace{padding:3rem 0 5rem;background:var(--paper)}.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr)minmax(0,1fr);gap:2rem;align-items:start}.form-pane{background:var(--paper);border:1px solid var(--paper-3);border-radius:var(--r-lg);overflow:hidden}.form-pane-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--paper-3);background:var(--paper-2);display:flex;align-items:center;justify-content:space-between;gap:1rem}.form-pane-title{font-size:.85rem;font-weight:600;color:var(--heading)}.form-pane-meta{font-size:.72rem;color:var(--ink-3);letter-spacing:.04em}.error-banner{display:none;padding:1rem 1.5rem;background:var(--rose-pale);border-bottom:1px solid rgba(155,34,51,.18);color:var(--rose)}.error-banner.active{display:block}.error-banner-title{font-size:.82rem;font-weight:600;margin-bottom:.5rem;display:flex;align-items:center;gap:8px}.error-banner-list{list-style:none;font-size:.8rem;line-height:1.7;padding-left:18px}.error-banner-list li{position:relative;padding-left:2px}.error-banner-list li::before{content:'';position:absolute;left:-12px;top:11px;width:4px;height:4px;border-radius:50%;background:var(--rose)}.form-body{padding:.5rem 1.5rem 1.5rem}.fset{border-top:1px solid var(--paper-3);padding:1.25rem 0}.fset:first-child{border-top:none}.fset-head{display:flex;align-items:center;justify-content:space-between;cursor:pointer;user-select:none;margin-bottom:0;padding:0}.fset-head:hover .fset-title{color:var(--blue)}.fset-title{font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--heading);transition:color .15s}.fset-chev{width:14px;height:14px;color:var(--ink-3);transition:transform .2s ease}.fset.collapsed .fset-chev{transform:rotate(-90deg)}.fset-body{overflow:hidden;max-height:2e3px;transition:max-height .3s ease,margin-top .3s ease;margin-top:1.25rem}.fset.collapsed .fset-body{max-height:0;margin-top:0}.adv{margin-top:1rem;border:1px dashed var(--paper-3);border-radius:var(--r);padding:0;background:rgba(244,246,253,.4)}.adv-head{padding:10px 14px;cursor:pointer;user-select:none;display:flex;align-items:center;justify-content:space-between;font-size:.74rem;color:var(--ink-2);letter-spacing:.04em}.adv-head:hover{color:var(--blue)}.adv-head-label{display:flex;align-items:center;gap:8px}.adv-head-icon{width:12px;height:12px;color:var(--ink-3);transition:transform .2s}.adv.collapsed .adv-head-icon{transform:rotate(-90deg)}.adv-body{padding:0 14px 14px;overflow:hidden;max-height:1500px;transition:max-height .3s ease,padding .3s ease}.adv.collapsed .adv-body{max-height:0;padding:0 14px}.row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:.75rem}.row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.75rem;margin-bottom:.75rem}.row>.field,.row-3>.field{margin-bottom:0}.field{margin-bottom:.75rem}.field-label{display:block;font-size:.72rem;font-weight:500;color:var(--ink-2);margin-bottom:5px}.field-label .req{color:var(--rose);margin-left:2px}.field-hint{display:block;font-size:.7rem;color:var(--ink-3);margin-top:4px;line-height:1.5}input.fld,select.fld,textarea.fld{width:100%;font-family:var(--sans);font-size:.86rem;padding:9px 12px;border:1px solid var(--paper-3);border-radius:var(--r);background:var(--paper);color:var(--ink);transition:border-color .15s,box-shadow .15s}input.fld:focus,select.fld:focus,textarea.fld:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,74,199,.12)}input.fld::placeholder,textarea.fld::placeholder{color:var(--ink-4)}textarea.fld{resize:vertical;min-height:60px;line-height:1.55}.lines-head{display:grid;grid-template-columns:1.6fr 70px 110px 110px 28px;gap:8px;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-weight:500;padding:0 4px 8px;border-bottom:1px solid var(--paper-3)}.line{display:grid;grid-template-columns:1.6fr 70px 110px 110px 28px;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid var(--paper-2)}.line:last-of-type{border-bottom:none}.line input.fld{padding:7px 10px;font-size:.82rem}.line-total{font-size:.84rem;text-align:right;color:var(--ink-2);padding-right:8px;font-variant-numeric:tabular-nums}.line-remove{width:24px;height:24px;border-radius:var(--r);background:0 0;border:1px solid var(--paper-3);color:var(--ink-3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.line-remove:hover{background:var(--rose-pale);border-color:var(--rose);color:var(--rose)}.add-line{margin-top:10px;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;font-size:.78rem;background:0 0;border:1px dashed var(--paper-3);color:var(--ink-2);border-radius:var(--r);cursor:pointer;transition:all .15s}.add-line:hover{border-color:var(--blue);color:var(--blue)}.totals{margin-top:1.25rem;padding:1rem;background:var(--paper-2);border-radius:var(--r);font-size:.85rem}.totals-row{display:flex;justify-content:space-between;padding:4px 0;color:var(--ink-2);font-variant-numeric:tabular-nums}.totals-row.grand{border-top:1px solid var(--paper-3);margin-top:6px;padding-top:10px;font-weight:600;color:var(--heading);font-size:.95rem}.submit-row{padding:1.25rem 1.5rem;border-top:1px solid var(--paper-3);background:var(--paper-2);display:flex;align-items:center;justify-content:space-between;gap:1rem}.submit-meta{font-size:.75rem;color:var(--ink-3)}.preview-pane{background:var(--paper);border:1px solid var(--paper-3);border-radius:var(--r-lg);overflow:hidden;position:sticky;top:80px}.preview-pane-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--paper-3);background:var(--paper-2);display:flex;align-items:center;justify-content:space-between;gap:1rem}.preview-pane-title{font-size:.85rem;font-weight:600;color:var(--heading)}.preview-actions{display:flex;gap:8px}.preview-actions .btn{padding:8px 14px;font-size:.78rem}#viewer-container{width:100%;height:760px;background:var(--paper-2);position:relative;overflow:hidden}#viewer-container.active{background:#525659}.viewer-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;text-align:center;background:var(--paper-2);z-index:1}.viewer-placeholder.hidden{display:none}.placeholder-icon{width:54px;height:54px;border-radius:50%;background:var(--paper-3);color:var(--ink-3);display:flex;align-items:center;justify-content:center;margin-bottom:1.25rem}.placeholder-title{font-size:1rem;font-weight:600;color:var(--heading);margin-bottom:.5rem}.placeholder-body{font-size:.85rem;color:var(--ink-2);max-width:340px;line-height:1.6}.loading-spinner{width:32px;height:32px;border:3px solid var(--paper-3);border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:1rem}@keyframes spin{to{transform:rotate(360deg)}}.info-strip{background:var(--paper-2);border-top:1px solid var(--paper-3);border-bottom:1px solid var(--paper-3);padding:1.5rem 0}.info-strip-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;max-width:var(--max);margin:0 auto;padding:0 2.5rem}.info-item{display:flex;align-items:flex-start;gap:12px}.info-icon{width:34px;height:34px;border-radius:8px;background:var(--blue-pale);color:var(--blue);display:flex;align-items:center;justify-content:center;flex-shrink:0}.info-title{font-size:.82rem;font-weight:600;color:var(--heading);margin-bottom:3px}.info-body{font-size:.74rem;color:var(--ink-2);line-height:1.55}.explainer{padding:5rem 0;background:var(--paper)}.explainer-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem}.explainer-left .label{margin-bottom:1rem;display:inline-block}.explainer-headline{font-size:clamp(1.8rem,3vw,2.6rem);margin-bottom:1.25rem}.explainer-headline em{font-style:italic;color:var(--blue)}.explainer-sub{font-size:.95rem;color:var(--ink-2);line-height:1.75;max-width:480px}.explainer-right{display:flex;flex-direction:column;gap:1.25rem}.explainer-card{border:1px solid var(--paper-3);border-radius:var(--r-lg);padding:1.5rem;background:var(--paper)}.explainer-card-title{font-size:.95rem;font-weight:600;color:var(--heading);margin-bottom:.5rem}.explainer-card-body{font-size:.85rem;color:var(--ink-2);line-height:1.7}@media(max-width:1024px){.workspace-grid{grid-template-columns:1fr;gap:1.5rem}.preview-pane{position:static}#viewer-container{height:600px}.info-strip-inner{grid-template-columns:repeat(2,1fr)}.explainer-grid{grid-template-columns:1fr;gap:2rem}}@media(max-width:760px){.inner,.nav-inner,.breadcrumb-inner,.info-strip-inner{padding:0 1.5rem}.nav-links{display:none}.nav-menu-btn{display:block}.row,.row-3{grid-template-columns:1fr;gap:.5rem}.info-strip-inner{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:2rem}.lines-head{display:none}.line{grid-template-columns:1fr;gap:6px;padding:12px;background:var(--paper-2);border-radius:var(--r);margin-bottom:8px;border:none}.line-total{text-align:left}}