/* ═══════════════════════════════════════════════════════════════════════════
 * discount-calc.css — CalculatorFix Discount Calculator
 * Namespace prefix: dc-  (all selectors scoped to avoid global conflicts)
 * Place at: assets/css/discount-calc.css
 * ═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS custom properties scoped to the widget ─────────────────────────── */
#dc-container {
    --dc-accent:        #0ea5e9;
    --dc-accent-dark:   #0369a1;
    --dc-accent-light:  #e0f2fe;
    --dc-accent-hover:  #bae6fd;
    --dc-green:         #22c55e;
    --dc-green-dark:    #15803d;
    --dc-green-bg:      #f0fdf4;
    --dc-green-brd:     #bbf7d0;
    --dc-amber:         #fbbf24;
    --dc-amber-dark:    #b45309;
    --dc-amber-bg:      #fffbeb;
    --dc-amber-brd:     #fde68a;
    --dc-teal:          #14b8a6;
    --dc-teal-bg:       #f0fdfa;
    --dc-teal-brd:      #99f6e4;
    --dc-purple:        #a855f7;
    --dc-purple-bg:     #faf5ff;
    --dc-purple-brd:    #e9d5ff;
    --dc-bg:            #ffffff;
    --dc-bg-soft:       #f8fafc;
    --dc-bg-muted:      #f1f5f9;
    --dc-text-primary:  #0f172a;
    --dc-text-secondary:#475569;
    --dc-text-muted:    #94a3b8;
    --dc-border:        #e2e8f0;
    --dc-border-soft:   #f1f5f9;
    --dc-shadow-focus:  0 0 0 4px rgba(14,165,233,.15);
    --dc-radius:        10px;
    --dc-radius-sm:     6px;
    --dc-trans:         0.17s ease;
}

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

/* ── Tabs ────────────────────────────────────────────────────────────────── */
.dc-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin-bottom: 1rem;
    border: 1.5px solid var(--dc-border);
    border-radius: var(--dc-radius-sm);
    overflow: hidden;
    width: fit-content;
    max-width: 100%;
}

.dc-tab {
    padding: 0.42rem 0.85rem;
    font-size: 0.79rem;
    font-weight: 600;
    font-family: inherit;
    background: transparent;
    border: none;
    border-right: 1.5px solid var(--dc-border);
    cursor: pointer;
    color: var(--dc-text-secondary);
    transition: background var(--dc-trans), color var(--dc-trans);
    white-space: nowrap;
    line-height: 1.3;
}

.dc-tab:last-child { border-right: none; }

.dc-tab--active {
    background: var(--dc-accent-light);
    color: var(--dc-accent-dark);
}

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

@media (max-width: 560px) {
    .dc-tabs { width: 100%; }
    .dc-tab  { flex: 1 1 auto; border-right: none; border-bottom: 1.5px solid var(--dc-border); font-size: 0.74rem; padding: 0.38rem 0.5rem; }
    .dc-tab:last-child { border-bottom: none; }
}

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

/* ── Input grid ──────────────────────────────────────────────────────────── */
.dc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.78rem 1rem;
}

@media (max-width: 520px) {
    .dc-grid { grid-template-columns: 1fr; }
    .dc-span-full { grid-column: span 1 !important; }
}

.dc-span-full { grid-column: span 2; }

/* ── Field group ─────────────────────────────────────────────────────────── */
.dc-field-group {
    display: flex;
    flex-direction: column;
    gap: 0.27rem;
}

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

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

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

.dc-input-wrap--sm { width: 130px; }

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

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

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

.dc-input {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    padding: 0.47rem 0.6rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dc-text-primary);
    font-family: inherit;
}

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

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

/* ── Radio group ─────────────────────────────────────────────────────────── */
.dc-radio-row {
    display: flex;
    gap: 0.55rem;
    flex-wrap: wrap;
}

.dc-radio-opt {
    display: flex;
    align-items: center;
    gap: 0.42rem;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--dc-text-secondary);
    padding: 0.38rem 0.72rem;
    border: 1.5px solid var(--dc-border);
    border-radius: var(--dc-radius-sm);
    background: var(--dc-bg-soft);
    transition: border-color var(--dc-trans), background var(--dc-trans), color var(--dc-trans);
    user-select: none;
}

.dc-radio-opt:has(.dc-radio-inp:checked) {
    border-color: var(--dc-accent);
    background: var(--dc-accent-light);
    color: var(--dc-accent-dark);
}

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

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

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

/* ── Multi-item panel ────────────────────────────────────────────────────── */
.dc-multi-head {
    display: grid;
    grid-template-columns: 1fr 90px 52px 80px 90px 28px;
    gap: 0.35rem;
    padding-bottom: 0.4rem;
    border-bottom: 1.5px solid var(--dc-border);
    margin-bottom: 0.45rem;
    font-size: 0.67rem;
    font-weight: 700;
    color: var(--dc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.dc-text-r { text-align: right; }

.dc-multi-rows { display: flex; flex-direction: column; gap: 0.4rem; }

.dc-multi-row {
    display: grid;
    grid-template-columns: 1fr 90px 52px 80px 90px 28px;
    gap: 0.35rem;
    align-items: center;
}

@media (max-width: 580px) {
    .dc-multi-head { display: none; }
    .dc-multi-row {
        grid-template-columns: 1fr 1fr 1fr;
        grid-template-rows: auto auto;
        gap: 0.3rem;
        padding: 0.55rem;
        background: var(--dc-bg-soft);
        border: 1.5px solid var(--dc-border);
        border-radius: var(--dc-radius-sm);
    }
    .dc-multi-row .dc-input-wrap:first-child { grid-column: span 3; }
    .dc-row-del { grid-column: 3; justify-self: end; }
}

.dc-row-del {
    width: 28px; height: 28px;
    border-radius: var(--dc-radius-sm);
    border: 1.5px solid var(--dc-border);
    background: transparent;
    color: var(--dc-text-muted);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: background var(--dc-trans), color var(--dc-trans), border-color var(--dc-trans);
}

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

.dc-add-row {
    display: inline-flex; align-items: center; gap: 0.38rem;
    margin-top: 0.5rem;
    padding: 0.36rem 0.75rem;
    font-size: 0.78rem; font-weight: 600; font-family: inherit;
    color: var(--dc-accent-dark);
    background: var(--dc-accent-light);
    border: 1.5px dashed var(--dc-accent);
    border-radius: var(--dc-radius-sm);
    cursor: pointer;
    transition: background var(--dc-trans);
}

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

.dc-multi-shared {
    display: flex; align-items: center; gap: 0.7rem;
    margin-top: 0.7rem;
    padding-top: 0.65rem;
    border-top: 1px solid var(--dc-border-soft);
    flex-wrap: wrap;
}

.dc-multi-shared .dc-label { margin: 0; white-space: nowrap; font-size: 0.78rem; }

/* ── Action buttons ──────────────────────────────────────────────────────── */
.dc-actions {
    display: flex; gap: 0.6rem;
    margin: 0.95rem 0 0;
}

.dc-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.54rem 1.1rem;
    border-radius: var(--dc-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(--dc-trans), color var(--dc-trans),
                border-color var(--dc-trans), box-shadow var(--dc-trans), transform .1s ease;
}
.dc-btn:active { transform: translateY(1px); }

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

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

@media (max-width: 380px) {
    .dc-actions { flex-direction: column; }
    .dc-btn { width: 100%; justify-content: center; }
}

/* ── Results ─────────────────────────────────────────────────────────────── */
.dc-results {
    margin-top: 1.25rem;
    padding-top: 1.1rem;
    border-top: 1.5px solid var(--dc-border-soft);
}

/* Cards */
.dc-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.6rem;
    margin-bottom: 1rem;
}

@media (max-width: 800px) { .dc-cards { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 500px) { .dc-cards { grid-template-columns: 1fr 1fr; } }

.dc-card {
    display: flex; flex-direction: column; gap: 0.22rem;
    padding: 0.68rem 0.78rem;
    background: var(--dc-bg-soft);
    border: 1.5px solid var(--dc-border);
    border-radius: var(--dc-radius);
}

.dc-card--sale  { background: var(--dc-accent-light);  border-color: var(--dc-accent); }
.dc-card--save  { background: var(--dc-green-bg);  border-color: var(--dc-green-brd); }
.dc-card--eff   { background: var(--dc-purple-bg); border-color: var(--dc-purple-brd); }
.dc-card--tax   { background: var(--dc-amber-bg);  border-color: var(--dc-amber-brd); }
.dc-card--total { background: var(--dc-teal-bg);   border-color: var(--dc-teal-brd); }
.dc-card--pct   { background: var(--dc-purple-bg); border-color: var(--dc-purple-brd); }
.dc-card--orig  { background: var(--dc-accent-light); border-color: var(--dc-accent); }

.dc-card-lbl {
    font-size: 0.67rem; font-weight: 600;
    color: var(--dc-text-muted);
    text-transform: uppercase; letter-spacing: 0.04em;
    white-space: nowrap;
}

.dc-card-val {
    font-size: 1.05rem; font-weight: 700;
    color: var(--dc-text-primary); line-height: 1.2;
}

.dc-card--sale  .dc-card-val { color: var(--dc-accent-dark); font-size: 1.12rem; }
.dc-card--save  .dc-card-val { color: var(--dc-green-dark); }
.dc-card--eff   .dc-card-val { color: #7e22ce; }
.dc-card--tax   .dc-card-val { color: var(--dc-amber-dark); }
.dc-card--total .dc-card-val { color: #0f766e; }

/* ── Charts ──────────────────────────────────────────────────────────────── */
.dc-charts-row {
    display: grid;
    grid-template-columns: 192px 1fr;
    gap: 0.78rem;
    margin-bottom: 0.85rem;
    align-items: start;
}

@media (max-width: 640px) { .dc-charts-row { grid-template-columns: 1fr; } }

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

.dc-chart-box--line { align-items: stretch; }

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

/* Donut */
.dc-donut-wrap {
    position: relative; width: 126px; height: 126px; flex-shrink: 0;
}
.dc-donut-wrap canvas { display: block; width: 126px !important; height: 126px !important; }

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

.dc-donut-big {
    display: block; font-size: 1rem; font-weight: 800;
    color: var(--dc-green-dark); line-height: 1.1;
}

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

/* Line chart */
.dc-line-wrap { width: 100%; height: 130px; position: relative; }
.dc-line-wrap canvas { display: block; width: 100% !important; height: 130px !important; }

/* Legend */
.dc-legend {
    display: flex; flex-wrap: wrap; gap: 0.33rem 0.65rem;
    align-items: center; width: 100%;
}

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

.dc-leg-dot--sale  { background: var(--dc-accent); }
.dc-leg-dot--save  { background: var(--dc-green); }
.dc-leg-dot--tax   { background: var(--dc-amber); }
.dc-leg-dot--line1 { background: var(--dc-accent); }
.dc-leg-dot--line2 { background: var(--dc-green); }

.dc-leg-txt {
    font-size: 0.69rem; color: var(--dc-text-secondary);
    display: flex; align-items: center; gap: 0.28rem;
}

/* ── Stacked breakdown table ─────────────────────────────────────────────── */
.dc-stack-info {
    background: var(--dc-accent-light);
    border: 1.5px solid var(--dc-accent);
    border-radius: var(--dc-radius);
    padding: 0.75rem 0.85rem;
    margin-bottom: 0.85rem;
}

.dc-stack-title {
    font-size: 0.75rem; font-weight: 700;
    color: var(--dc-accent-dark);
    display: flex; align-items: center; gap: 0.4rem;
    margin: 0 0 0.6rem;
}

.dc-stack-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.dc-stack-table {
    width: 100%; border-collapse: collapse;
    font-size: 0.775rem; color: var(--dc-text-primary);
    min-width: 380px;
}

.dc-stack-table th {
    background: rgba(14,165,233,.08);
    font-weight: 700; font-size: 0.68rem;
    text-transform: uppercase; letter-spacing: 0.04em;
    color: var(--dc-accent-dark);
    padding: 0.42rem 0.65rem;
    border-bottom: 1.5px solid var(--dc-accent);
    text-align: right; white-space: nowrap;
}

.dc-stack-table th:first-child,
.dc-stack-table td:first-child { text-align: left; padding-left: 0.8rem; }

.dc-stack-table td {
    padding: 0.38rem 0.65rem; text-align: right;
    border-bottom: 1px solid rgba(14,165,233,.15);
    color: var(--dc-text-secondary);
    font-variant-numeric: tabular-nums;
}

.dc-stack-table tbody tr:last-child td { border-bottom: none; }
.dc-stack-table tbody tr:hover { background: rgba(14,165,233,.06); }

/* ── Multi-item result table ─────────────────────────────────────────────── */
.dc-multi-result { margin-top: 0.8rem; }

.dc-section-lbl {
    font-size: 0.71rem; font-weight: 700;
    color: var(--dc-text-secondary);
    text-transform: uppercase; letter-spacing: 0.05em;
    margin: 0 0 0.45rem;
}

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

.dc-multi-table {
    width: 100%; border-collapse: collapse;
    font-size: 0.775rem; color: var(--dc-text-primary);
    min-width: 520px;
}

.dc-multi-table th {
    background: var(--dc-bg-muted); font-weight: 700;
    font-size: 0.67rem; text-transform: uppercase; letter-spacing: 0.04em;
    color: var(--dc-text-secondary);
    padding: 0.46rem 0.68rem;
    border-bottom: 1.5px solid var(--dc-border);
    text-align: right; white-space: nowrap;
}

.dc-multi-table th:first-child,
.dc-multi-table td:first-child { text-align: left; padding-left: 0.82rem; }

.dc-multi-table td {
    padding: 0.38rem 0.68rem; text-align: right;
    border-bottom: 1px solid var(--dc-border-soft);
    color: var(--dc-text-secondary);
    font-variant-numeric: tabular-nums;
}

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

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

.dc-col-save  { color: var(--dc-green-dark) !important; font-weight: 600 !important; }
.dc-col-tax   { color: var(--dc-amber-dark) !important; }
.dc-col-total { color: var(--dc-accent-dark) !important; font-weight: 700 !important; }