/* ============================================================
   Utilities Bunker — VAT Calculator (v2.1)
   File: /assets/css/modules/calculators/financialcalculators/vat-calculator.v2.1.css
   Purpose:
   - Tool-only layout and visual styling
   - Keeps shared UB toolkit untouched
   - Mobile-first, responsive, accessible, fast
   ============================================================ */

:root{
  --vat-radius: 16px;
  --vat-gap: 14px;
  --vat-soft: rgba(0,0,0,.06);
  --vat-net: rgba(0,112,187,.18);
  --vat-vat: rgba(249,58,19,.18);
  --vat-net-solid: #0070bb;
  --vat-vat-solid: #f93a13;
}

/* Header */
.vat-head{
  display:flex;
  gap:10px;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
}

.vat-page-title{
  margin:0;
  font-size:var(--ub-fs-5);
}

.vat-page-subtitle{
  margin:6px 0 0;
}

/* How to */
.vat-howto{
  margin:0;
  padding-left:18px;
}

/* Main hero layout */
.vat-hero{
  display:grid;
  grid-template-columns:1.08fr 0.92fr;
  gap:var(--vat-gap);
}

@media (max-width: 980px){
  .vat-hero{
    grid-template-columns:1fr;
  }
}

/* Panels */
.vat-panel{
  background:var(--ub-surface-2);
  border:1px solid var(--ub-border);
  border-radius:var(--vat-radius);
  padding:12px;
}

.vat-panel--controls{
  padding:0;
  background:transparent;
  border:none;
}

.vat-form-card{
  margin:0;
}

/* Summary top */
.vat-panel-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
}

.vat-eyebrow{
  font-size:12px;
  font-weight:950;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ub-muted);
}

.vat-summary-title{
  margin-top:4px;
  font-size:clamp(15px, 1rem + .25vw, 18px);
  font-weight:950;
  letter-spacing:-.01em;
}

.vat-summary-sub{
  margin-top:4px;
  font-size:12px;
  color:var(--ub-muted);
}

/* KPI tiles */
.vat-kpis{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  justify-content:flex-end;
}

.vat-kpi{
  min-width:116px;
  padding:8px 10px;
  border-radius:14px;
  border:1px solid var(--ub-border);
  background:var(--ub-card-bg);
}

.vat-kpi .k{
  font-size:11px;
  font-weight:900;
  text-transform:uppercase;
  letter-spacing:.04em;
  color:var(--ub-muted);
}

.vat-kpi .v{
  margin-top:2px;
  font-family:var(--ub-mono);
  font-size:14px;
  font-weight:950;
  overflow-wrap:anywhere;
}

/* Mode buttons / preset row */
.vat-mode-row,
.vat-preset-row,
.vat-toggle-row,
.vat-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.vat-mode-row{
  margin-top:10px;
}

.vat-preset-row{
  margin-top:12px;
}

.vat-toggle-row{
  margin-top:12px;
  align-items:center;
}

.vat-chip-toggle{
  display:flex;
  gap:8px;
  align-items:center;
}

.vat-chip-toggle input[type="checkbox"]{
  width:18px;
  height:18px;
  margin:0;
  accent-color:var(--ub-btn-grad-b);
}

/* Breakdown card */
.vat-bar-card{
  margin-top:12px;
  padding:12px;
  border-radius:14px;
  border:1px solid var(--ub-border);
  background:var(--ub-card-bg);
}

.vat-bar-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
  font-size:12px;
  color:var(--ub-muted);
}

.vat-stack{
  display:flex;
  width:100%;
  min-height:46px;
  overflow:hidden;
  border-radius:999px;
  border:1px solid var(--ub-border);
  background:var(--ub-surface-3);
}

.vat-stack-net,
.vat-stack-vat{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 12px;
  font-size:12px;
  font-weight:950;
  white-space:nowrap;
  transition:width .18s ease;
}

.vat-stack-net{
  background:linear-gradient(90deg, rgba(0,112,187,.18), rgba(0,112,187,.28));
  color:var(--ub-text);
}

.vat-stack-vat{
  background:linear-gradient(90deg, rgba(249,58,19,.18), rgba(249,58,19,.30));
  color:var(--ub-text);
}

html.ub-theme-dark .vat-stack-net{
  background:linear-gradient(90deg, rgba(96,165,250,.24), rgba(96,165,250,.34));
}

html.ub-theme-dark .vat-stack-vat{
  background:linear-gradient(90deg, rgba(249,58,19,.24), rgba(249,58,19,.36));
}

.vat-legend{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:10px;
  font-size:12px;
  color:var(--ub-muted);
}

.vat-legend span{
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.vat-swatch{
  width:12px;
  height:12px;
  border-radius:999px;
  display:inline-block;
}

.vat-swatch--net{
  background:var(--vat-net-solid);
}

.vat-swatch--vat{
  background:var(--vat-vat-solid);
}

/* Outputs */
.vat-out-grid .ub-v{
  overflow-wrap:anywhere;
}

/* Work */
.vat-work-wrap{
  margin-top:14px;
}

.vat-work{
  font-family:var(--ub-mono);
  font-size:13px;
  line-height:1.6;
  white-space:pre-wrap;
  overflow-wrap:anywhere;
}

.vat-work-note{
  margin-top:10px;
  color:var(--ub-muted);
  font-size:12px;
}

/* Formula / FAQ sections */
.vat-section{
  margin-top:12px;
}

.vat-formula-list{
  margin:0;
  padding-left:18px;
}

.vat-faq-q{
  margin:12px 0 6px;
  font-size:var(--ub-fs-2);
}

.vat-faq-a{
  margin:0 0 10px;
}

/* Field helpers */
.hint{
  margin-top:6px;
  font-size:12px;
  color:var(--ub-muted);
}

.ub-inline-error{
  margin-top:6px;
  font-size:12px;
  color:var(--ub-danger);
  font-weight:800;
  min-height:16px;
}

/* Focus polish */
.vat-mode-row .ub-chip:focus,
.vat-preset-row .ub-chip:focus,
.vat-chip-toggle:focus-within{
  outline:none;
  box-shadow:0 0 0 4px var(--ub-focus);
  border-radius:12px;
}

/* Make card buttons full width on narrow layouts when wrapping */
@media (max-width: 560px){
  .vat-actions .ub-btn{
    flex:1 1 100%;
  }
}

/* KPI tile sizing on smaller screens */
@media (max-width: 520px){
  .vat-kpi{
    min-width:98px;
  }

  .vat-bar-head{
    align-items:flex-start;
  }
}

/* Reduced motion safety */
@media (prefers-reduced-motion: reduce){
  .vat-stack-net,
  .vat-stack-vat{
    transition:none;
  }
}