/* ═══════════════════════════════════════════════════════════════════════════
 * vat-calc.css — CalculatorFix VAT / Sales Tax Calculator
 * Namespace prefix: vc-  (all selectors scoped to avoid global conflicts)
 * Place at: assets/css/vat-calc.css
 * ═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS custom properties scoped to the widget container ─────────────────── */
#vc-container {
    --vc-accent:        #0ea5e9;
    --vc-accent-dark:   #0369a1;
    --vc-accent-light:  #e0f2fe;
    --vc-accent-hover:  #bae6fd;
    --vc-tax-clr:       #fbbf24;
    --vc-tax-dark:      #b45309;
    --vc-tax-bg:        #fffbeb;
    --vc-tax-brd:       #fde68a;
    --vc-green:         #22c55e;
    --vc-green-dark:    #166534;
    --vc-green-bg:      #f0fdf4;
    --vc-green-brd:     #bbf7d0;
    --vc-teal:          #14b8a6;
    --vc-bg:            #ffffff;
    --vc-bg-soft:       #f8fafc;
    --vc-bg-muted:      #f1f5f9;
    --vc-text-primary:  #0f172a;
    --vc-text-secondary:#475569;
    --vc-text-muted:    #94a3b8;
    --vc-border:        #e2e8f0;
    --vc-border-soft:   #f1f5f9;
    --vc-shadow-focus:  0 0 0 4px rgba(14,165,233,.15);
    --vc-radius:        10px;
    --vc-radius-sm:     6px;
    --vc-trans:         0.17s ease;
}

/* ── Widget heading ─────────────────────────────────────────────────────────── */
.vc-wrap .calc-widget-heading {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--vc-text-primary);
    margin: 0 0 1rem;
    padding-bottom: 0.7rem;
    border-bottom: 1px solid var(--vc-border);
}

/* ── Mode tabs ──────────────────────────────────────────────────────────────── */
.vc-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1rem;
    border: 1.5px solid var(--vc-border);
    border-radius: var(--vc-radius-sm);
    overflow: hidden;
    width: fit-content;
}

.vc-tab {
    padding: 0.44rem 1rem;
    font-size: 0.815rem;
    font-weight: 600;
    font-family: inherit;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--vc-text-secondary);
    transition: background var(--vc-trans), color var(--vc-trans);
    position: relative;
    white-space: nowrap;
}

.vc-tab + .vc-tab {
    border-left: 1.5px solid var(--vc-border);
}

.vc-tab--active,
.vc-tab:focus-visible {
    background: var(--vc-accent-light);
    color: var(--vc-accent-dark);
    outline: none;
}

.vc-tab:hover:not(.vc-tab--active) {
    background: var(--vc-bg-muted);
}

/* ── Panels ─────────────────────────────────────────────────────────────────── */
.vc-panel--hidden { display: none; }

/* ── Input grid ─────────────────────────────────────────────────────────────── */
.vc-inputs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem 1rem;
}

@media (max-width: 540px) {
    .vc-inputs-grid { grid-template-columns: 1fr; }
    .vc-span-2 { grid-column: span 1 !important; }
}

.vc-span-2 { grid-column: span 2; }

/* ── Input group ─────────────────────────────────────────────────────────────── */
.vc-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.28rem;
}

.vc-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.775rem;
    font-weight: 600;
    color: var(--vc-text-primary);
    line-height: 1.2;
}

.vc-hint {
    font-size: 0.67rem;
    font-weight: 500;
    color: var(--vc-text-muted);
    background: var(--vc-bg-muted);
    padding: 1px 5px;
    border-radius: 4px;
    margin-left: auto;
}

.vc-field-wrap {
    display: flex;
    align-items: center;
    background: var(--vc-bg-soft);
    border: 1.5px solid var(--vc-border);
    border-radius: var(--vc-radius-sm);
    overflow: hidden;
    transition: border-color var(--vc-trans), box-shadow var(--vc-trans);
}

.vc-field-wrap:focus-within {
    border-color: var(--vc-accent);
    box-shadow: var(--vc-shadow-focus);
    background: var(--vc-bg);
}

.vc-field-wrap--sel { cursor: pointer; }
.vc-field-wrap--inline { width: 130px; }

.vc-affix {
    padding: 0 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--vc-text-muted);
    background: var(--vc-bg-muted);
    border-right: 1px solid var(--vc-border);
    align-self: stretch;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.vc-affix--suf {
    border-right: none;
    border-left: 1px solid var(--vc-border);
}

.vc-field {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    padding: 0.48rem 0.6rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--vc-text-primary);
    font-family: inherit;
}

.vc-field[type="number"]::-webkit-inner-spin-button,
.vc-field[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }
.vc-field[type="number"] { -moz-appearance: textfield; }

.vc-select {
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    padding-right: 1.8rem;
    background-image: url("data:image/svg+xml,%3Csvg width='11' height='7' viewBox='0 0 11 7' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4.5 5 4.5-5' stroke='%2394a3b8' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.55rem center;
    background-size: 10px;
}

.vc-desc {
    font-size: 0.67rem;
    color: var(--vc-text-muted);
    line-height: 1.35;
}

/* ── Radio group ────────────────────────────────────────────────────────────── */
.vc-radio-group {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.vc-radio-label {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    cursor: pointer;
    font-size: 0.825rem;
    font-weight: 500;
    color: var(--vc-text-secondary);
    padding: 0.4rem 0.75rem;
    border: 1.5px solid var(--vc-border);
    border-radius: var(--vc-radius-sm);
    background: var(--vc-bg-soft);
    transition: border-color var(--vc-trans), background var(--vc-trans), color var(--vc-trans);
    user-select: none;
}

.vc-radio-label:has(.vc-radio:checked) {
    border-color: var(--vc-accent);
    background: var(--vc-accent-light);
    color: var(--vc-accent-dark);
}

.vc-radio { position: absolute; opacity: 0; width: 0; height: 0; }

.vc-radio-custom {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--vc-border);
    background: var(--vc-bg);
    flex-shrink: 0;
    position: relative;
    transition: border-color var(--vc-trans);
}

.vc-radio:checked + .vc-radio-custom {
    border-color: var(--vc-accent);
    background: var(--vc-accent);
    box-shadow: inset 0 0 0 3px var(--vc-bg);
}

.vc-radio-sub {
    font-size: 0.7rem;
    color: var(--vc-text-muted);
    font-weight: 400;
}

/* ── Multi-item panel ───────────────────────────────────────────────────────── */
.vc-multi-header {
    display: grid;
    grid-template-columns: 1fr 110px 60px 100px 32px;
    gap: 0.4rem;
    padding: 0 0 0.4rem;
    border-bottom: 1.5px solid var(--vc-border);
    margin-bottom: 0.5rem;
}

.vc-multi-col-head {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--vc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.vc-text-right { text-align: right; }

.vc-multi-rows { display: flex; flex-direction: column; gap: 0.45rem; }

.vc-multi-row {
    display: grid;
    grid-template-columns: 1fr 110px 60px 100px 32px;
    gap: 0.4rem;
    align-items: center;
}

@media (max-width: 560px) {
    .vc-multi-header { display: none; }
    .vc-multi-row {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
        gap: 0.35rem;
        padding: 0.6rem;
        background: var(--vc-bg-soft);
        border: 1.5px solid var(--vc-border);
        border-radius: var(--vc-radius-sm);
    }
    .vc-multi-row .vc-field-wrap:first-child { grid-column: span 2; }
    .vc-row-del-btn { grid-column: 2; justify-self: end; }
}

.vc-multi-row .vc-field-wrap { margin: 0; }

.vc-row-del-btn {
    width: 30px;
    height: 30px;
    border-radius: var(--vc-radius-sm);
    border: 1.5px solid var(--vc-border);
    background: transparent;
    color: var(--vc-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background var(--vc-trans), color var(--vc-trans), border-color var(--vc-trans);
}

.vc-row-del-btn:hover {
    background: #fff1f2;
    border-color: #fda4af;
    color: #e11d48;
}

.vc-add-row-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.55rem;
    padding: 0.38rem 0.8rem;
    font-size: 0.79rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--vc-accent-dark);
    background: var(--vc-accent-light);
    border: 1.5px dashed var(--vc-accent);
    border-radius: var(--vc-radius-sm);
    cursor: pointer;
    transition: background var(--vc-trans);
}

.vc-add-row-btn:hover { background: var(--vc-accent-hover); }

.vc-multi-rate-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.75rem;
    padding-top: 0.7rem;
    border-top: 1px solid var(--vc-border-soft);
    flex-wrap: wrap;
}

.vc-multi-rate-row .vc-label {
    font-size: 0.79rem;
    margin: 0;
    white-space: nowrap;
}

/* ── Action buttons ─────────────────────────────────────────────────────────── */
.vc-actions {
    display: flex;
    gap: 0.6rem;
    margin: 1rem 0 0;
}

.vc-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.15rem;
    border-radius: var(--vc-radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: 1.5px solid transparent;
    line-height: 1;
    transition: background var(--vc-trans), color var(--vc-trans),
                border-color var(--vc-trans), box-shadow var(--vc-trans), transform 0.1s ease;
}

.vc-btn:active { transform: translateY(1px); }

.vc-btn--primary {
    background: var(--vc-accent);
    color: #fff;
    border-color: var(--vc-accent);
}

.vc-btn--primary:hover {
    background: var(--vc-accent-dark);
    border-color: var(--vc-accent-dark);
    box-shadow: 0 4px 12px rgba(14,165,233,.25);
}

.vc-btn--ghost {
    background: transparent;
    color: var(--vc-text-secondary);
    border-color: var(--vc-border);
}

.vc-btn--ghost:hover {
    background: var(--vc-bg-muted);
    color: var(--vc-text-primary);
    border-color: var(--vc-text-muted);
}

@media (max-width: 400px) {
    .vc-actions { flex-direction: column; }
    .vc-btn { width: 100%; justify-content: center; }
}

/* ── Results ────────────────────────────────────────────────────────────────── */
.vc-results {
    margin-top: 1.3rem;
    padding-top: 1.1rem;
    border-top: 1.5px solid var(--vc-border-soft);
}

/* Summary cards */
.vc-results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.65rem;
    margin-bottom: 1rem;
}

@media (max-width: 760px) { .vc-results-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 380px) { .vc-results-grid { grid-template-columns: 1fr 1fr; } }

.vc-card {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.7rem 0.8rem;
    background: var(--vc-bg-soft);
    border: 1.5px solid var(--vc-border);
    border-radius: var(--vc-radius);
}

.vc-card--primary {
    background: var(--vc-accent-light);
    border-color: var(--vc-accent);
}

.vc-card--tax {
    background: var(--vc-tax-bg);
    border-color: var(--vc-tax-brd);
}

.vc-card--discount {
    background: var(--vc-green-bg);
    border-color: var(--vc-green-brd);
}

.vc-card-label {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--vc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.vc-card-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--vc-text-primary);
    line-height: 1.2;
}

.vc-card--primary .vc-card-value { color: var(--vc-accent-dark); font-size: 1.15rem; }
.vc-card--tax .vc-card-value     { color: var(--vc-tax-dark); }
.vc-card--discount .vc-card-value { color: var(--vc-green-dark); }

.vc-card-sub {
    font-size: 0.67rem;
    font-weight: 600;
    color: var(--vc-tax-dark);
    background: var(--vc-tax-brd);
    padding: 1px 6px;
    border-radius: 4px;
    width: fit-content;
}

/* ── Charts row ─────────────────────────────────────────────────────────────── */
.vc-charts-row {
    display: grid;
    grid-template-columns: 195px 1fr;
    gap: 0.8rem;
    margin-bottom: 0.85rem;
    align-items: start;
}

@media (max-width: 660px) { .vc-charts-row { grid-template-columns: 1fr; } }

.vc-chart-card {
    background: var(--vc-bg-soft);
    border: 1.5px solid var(--vc-border);
    border-radius: var(--vc-radius);
    padding: 0.8rem 0.85rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.vc-chart-card--bar { align-items: stretch; }

.vc-chart-title {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--vc-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
    align-self: flex-start;
}

/* Donut */
.vc-donut-wrap {
    position: relative;
    width: 128px;
    height: 128px;
    flex-shrink: 0;
}

.vc-donut-wrap canvas {
    display: block;
    width: 128px !important;
    height: 128px !important;
}

.vc-donut-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.vc-donut-pct {
    display: block;
    font-size: 1rem;
    font-weight: 800;
    color: var(--vc-accent-dark);
    line-height: 1.1;
}

.vc-donut-sub-lbl {
    display: block;
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--vc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Bar chart */
.vc-bar-wrap {
    width: 100%;
    height: 138px;
    position: relative;
}

.vc-bar-wrap canvas {
    display: block;
    width: 100% !important;
    height: 138px !important;
}

/* Legend */
.vc-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.7rem;
    align-items: center;
    width: 100%;
}

.vc-leg-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.vc-leg-dot--net  { background: var(--vc-accent); }
.vc-leg-dot--tax  { background: var(--vc-tax-clr); }
.vc-leg-dot--disc { background: var(--vc-green); }

.vc-leg-lbl {
    font-size: 0.69rem;
    color: var(--vc-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* ── Multi-item results table ───────────────────────────────────────────────── */
.vc-multi-results { margin-top: 0.85rem; }

.vc-section-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--vc-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 0.5rem;
}

.vc-table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1.5px solid var(--vc-border);
    border-radius: var(--vc-radius);
}

.vc-breakdown-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.79rem;
    color: var(--vc-text-primary);
    min-width: 440px;
}

.vc-breakdown-table th {
    background: var(--vc-bg-muted);
    font-weight: 700;
    font-size: 0.69rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--vc-text-secondary);
    padding: 0.48rem 0.7rem;
    border-bottom: 1.5px solid var(--vc-border);
    text-align: right;
    white-space: nowrap;
}

.vc-breakdown-table th:first-child,
.vc-breakdown-table td:first-child { text-align: left; padding-left: 0.85rem; }

.vc-breakdown-table td {
    padding: 0.4rem 0.7rem;
    text-align: right;
    border-bottom: 1px solid var(--vc-border-soft);
    color: var(--vc-text-secondary);
    font-variant-numeric: tabular-nums;
}

.vc-breakdown-table tbody tr:last-child td { border-bottom: none; }
.vc-breakdown-table tbody tr:nth-child(even) { background: var(--vc-bg-soft); }
.vc-breakdown-table tbody tr:hover { background: var(--vc-accent-light); }

.vc-breakdown-table tfoot td {
    font-weight: 700;
    color: var(--vc-text-primary);
    border-top: 1.5px solid var(--vc-border);
    border-bottom: none;
    background: var(--vc-bg-muted);
}

.vc-breakdown-table .vc-col-tax { color: var(--vc-tax-dark); }
.vc-breakdown-table .vc-col-total { color: var(--vc-accent-dark); font-weight: 700; }