/*
 * payslip-explorer — styling an annotated Irish payslip with a gross-pay
 * slider, deduction rows (click to expand), and a stacked "where the money
 * goes" bar. Document-like look: off-white page, monospace amounts, clear
 * information hierarchy.
 */

.maths-activity .pe-scenario-chip {
    display: inline-block;
    margin-top: 0.4rem;
    padding: 0.3rem 0.75rem;
    background: var(--maths-surface-alt);
    color: var(--maths-primary-dark);
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.9rem;
}

/* Contract-type tabs */
.maths-activity .pe-contract-tabs {
    display: flex;
    gap: 0.35rem;
    margin-bottom: 0.9rem;
    border-bottom: 2px solid var(--maths-border);
}

.maths-activity .pe-contract-tab {
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    padding: 0.6rem 1.1rem 0.65rem;
    font-family: 'Nunito', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--maths-ink-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 48px;
    margin-bottom: -2px;
}

.maths-activity .pe-contract-tab i {
    color: var(--maths-primary);
}

.maths-activity .pe-contract-tab .pe-contract-hint {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--maths-ink-muted);
}

.maths-activity .pe-contract-tab[aria-selected="true"] {
    color: var(--maths-primary);
    border-bottom-color: var(--maths-primary);
    background: var(--maths-surface);
}

.maths-activity .pe-contract-tab:hover:not([aria-selected="true"]) {
    background: var(--maths-surface-alt);
}

/* Prompt card */
.maths-activity .pe-prompt {
    background: var(--maths-surface);
    border: 1px solid var(--maths-border);
    border-left: 6px solid var(--maths-accent);
    border-radius: 10px;
    padding: 0.8rem 1.1rem;
    margin-bottom: 0.9rem;
}

.maths-activity .pe-prompt-label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--maths-accent-dark);
    margin-bottom: 0.3rem;
}

.maths-activity .pe-prompt-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--maths-ink);
}

/* Payslip document — styled as an actual paper payslip:
 * off-white page with hairline rules, a letterhead header, a two-column
 * Payments | Deductions body, and a highlighted net-pay footer. */
.maths-activity .pe-payslip {
    background: #FFFEFA; /* warm off-white like real payslip paper */
    border: 1px solid var(--maths-border);
    border-radius: 10px;
    padding: 1.4rem 1.6rem 1.2rem;
    box-shadow: 0 1px 0 rgba(0,0,0,0.04);
    margin-bottom: 1rem;
}

/* Letterhead */
.maths-activity .pe-doc-header {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto;
    gap: 0.75rem 1.5rem;
    padding-bottom: 0.9rem;
    border-bottom: 2px solid var(--maths-border);
    margin-bottom: 1.1rem;
}

.maths-activity .pe-doc-eyebrow {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--maths-ink-muted);
    margin-bottom: 0.1rem;
}

.maths-activity .pe-doc-employer-name {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--maths-primary-dark);
    line-height: 1.15;
}

.maths-activity .pe-doc-meta {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    font-size: 0.9rem;
    text-align: right;
}

.maths-activity .pe-doc-meta-item {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
}

.maths-activity .pe-doc-meta dt {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--maths-ink-muted);
    align-self: center;
}

.maths-activity .pe-doc-meta dd {
    margin: 0;
    font-weight: 700;
    color: var(--maths-ink);
}

/* Two-column body: Payments | Deductions */
.maths-activity .pe-doc-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1.5rem;
    position: relative;
}

.maths-activity .pe-doc-body::before {
    /* Hairline rule dividing the two columns, like a real payslip.
     * Sits in the middle of the 1.5rem column gap. */
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(50% - 0.5px);
    width: 1px;
    background: var(--maths-border);
}

.maths-activity .pe-doc-col {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    min-width: 0;
}

.maths-activity .pe-doc-col-title {
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--maths-ink-muted);
    border-bottom: 1px solid var(--maths-border);
    padding-bottom: 0.35rem;
    margin-bottom: 0.3rem;
}

/* Line item (shared by gross-pay, deduction rows, and totals) */
.maths-activity .pe-doc-line,
.maths-activity .pe-doc-subtotal {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: baseline;
    gap: 0.5rem 0.8rem;
    padding: 0.3rem 0;
    min-width: 0;
}

.maths-activity .pe-doc-line-name {
    font-weight: 700;
    color: var(--maths-ink);
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-width: 0;
}

.maths-activity .pe-doc-line-amount {
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--maths-ink);
    font-variant-numeric: tabular-nums;
    text-align: right;
    white-space: nowrap;
}

/* Gross-pay line — primary colour, a touch bigger */
.maths-activity .pe-gross-line .pe-gross-amount {
    font-size: 1.5rem;
    color: var(--maths-primary);
}

/* Slider sits under the Gross-pay line in the Payments column */
.maths-activity .pe-row-slider {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    margin-top: 0.1rem;
}

.maths-activity .pe-row-slider input[type="range"] {
    width: 100%;
    accent-color: var(--maths-primary);
    height: 28px;
}

.maths-activity .pe-row-range {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--maths-ink-muted);
    font-variant-numeric: tabular-nums;
}

/* Deductions list */
.maths-activity .pe-doc-deductions {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.maths-activity .pe-doc-deduction {
    --deduction-colour: var(--maths-primary);
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: baseline;
    gap: 0.5rem 0.8rem;
    padding: 0.35rem 0;
    cursor: pointer;
    transition: background 0.12s ease;
    border-radius: 3px;
    min-width: 0;
}

.maths-activity .pe-doc-deduction:hover,
.maths-activity .pe-doc-deduction.is-open {
    background: var(--maths-surface-alt);
}

.maths-activity .pe-doc-deduction-label {
    font-weight: 700;
    color: var(--maths-ink);
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-width: 0;
}

.maths-activity .pe-doc-deduction-amount {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--deduction-colour);
    font-variant-numeric: tabular-nums;
    text-align: right;
    white-space: nowrap;
}

.maths-activity .pe-doc-deduction-swatch {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    background: var(--deduction-colour);
    flex-shrink: 0;
}

.maths-activity .pe-explain-btn {
    background: transparent;
    border: none;
    color: var(--maths-ink-muted);
    cursor: pointer;
    padding: 0;
    font-size: 0.9rem;
    margin-left: 0.15rem;
}

.maths-activity .pe-explain-btn:hover {
    color: var(--maths-primary);
}

.maths-activity .pe-doc-deduction.is-open .pe-explain-btn {
    color: var(--deduction-colour);
}

/* Deductions subtotal row — double-rule above, like a real payslip total */
.maths-activity .pe-deductions-subtotal {
    border-top: 1px solid var(--maths-border);
    box-shadow: inset 0 3px 0 -1px var(--maths-surface); /* double-line effect */
    margin-top: 0.3rem;
    padding-top: 0.5rem;
}

.maths-activity .pe-total-amount {
    color: var(--maths-ink);
}

/* Explanation panel — full-width, under the two-column body */
.maths-activity .pe-doc-explanation {
    margin-top: 0.9rem;
    padding: 0.75rem 0.9rem;
    background: var(--maths-surface);
    border: 1px solid var(--maths-border);
    border-left: 4px solid var(--maths-primary);
    border-radius: 6px;
}

.maths-activity .pe-doc-explanation-label {
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--maths-ink-muted);
    margin-bottom: 0.3rem;
}

.maths-activity .pe-doc-explanation-text {
    font-size: 0.95rem;
    color: var(--maths-ink);
    line-height: 1.5;
}

/* Self-employed note replaces the deductions list */
.maths-activity .pe-self-employed-note {
    display: flex;
    gap: 0.6rem;
    padding: 0.75rem 0.9rem;
    background: #FFF2EA;
    border-left: 4px solid var(--maths-accent);
    border-radius: 6px;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--maths-ink);
}

.maths-activity .pe-self-employed-note i {
    color: var(--maths-accent);
    font-size: 1.1rem;
    margin-top: 0.1rem;
}

/* Net-pay footer — full-width, highlighted bar under the body */
.maths-activity .pe-doc-footer {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: baseline;
    gap: 1rem;
    margin-top: 1rem;
    padding: 0.95rem 1rem;
    background: linear-gradient(90deg, rgba(62,142,126,0.1), rgba(62,142,126,0.04));
    border-top: 2px solid var(--maths-success);
    border-bottom: 2px solid var(--maths-success);
    border-radius: 4px;
}

.maths-activity .pe-doc-footer-label {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--maths-success);
}

.maths-activity .pe-doc-footer-amount,
.maths-activity .pe-net-amount {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--maths-success);
    font-variant-numeric: tabular-nums;
    text-align: right;
}

/* Breakdown bar */
.maths-activity .pe-breakdown {
    background: var(--maths-surface);
    border: 1px solid var(--maths-border);
    border-radius: 10px;
    padding: 1rem 1.2rem;
}

.maths-activity .pe-breakdown-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--maths-ink-muted);
    margin-bottom: 0.6rem;
}

.maths-activity .pe-breakdown-bar {
    display: flex;
    height: 36px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--maths-surface-alt);
    margin-bottom: 0.7rem;
}

.maths-activity .pe-breakdown-segment {
    flex-grow: 0;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.78rem;
    min-width: 2px;
    transition: flex-basis 0.12s ease;
    overflow: hidden;
    white-space: nowrap;
}

.maths-activity .pe-breakdown-segment-label {
    padding: 0 0.4rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.maths-activity .pe-breakdown-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
    font-size: 0.88rem;
    color: var(--maths-ink);
}

.maths-activity .pe-breakdown-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.maths-activity .pe-breakdown-swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.maths-activity .pe-breakdown-legend-label {
    font-weight: 600;
}

.maths-activity .pe-breakdown-legend-value {
    font-variant-numeric: tabular-nums;
    color: var(--maths-ink-muted);
}

.maths-activity .pe-breakdown-legend-value em {
    font-style: normal;
    color: var(--maths-ink-muted);
    font-size: 0.85em;
}

/* Disclaimer */
.maths-activity .pe-disclaimer {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.9rem;
    padding: 0.75rem 1rem;
    background: #FBF1DF;
    border-left: 4px solid var(--maths-warning);
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--maths-ink);
    line-height: 1.45;
}

.maths-activity .pe-disclaimer i {
    color: var(--maths-warning);
    margin-top: 0.15rem;
}

@media (max-width: 640px) {
    .maths-activity .pe-doc-header {
        grid-template-columns: 1fr;
    }
    .maths-activity .pe-doc-meta { text-align: left; }
    .maths-activity .pe-doc-meta-item { justify-content: flex-start; }
    .maths-activity .pe-doc-body {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .maths-activity .pe-doc-body::before { display: none; }
    .maths-activity .pe-gross-line .pe-gross-amount,
    .maths-activity .pe-doc-footer-amount {
        font-size: 1.5rem;
    }
    .maths-activity .pe-contract-tab .pe-contract-hint { display: none; }
}

/* Display mode — content-step snapshot. Strip the interactive chrome:
 * gross-pay slider, contract tabs, prompt card, reset-to-example button,
 * breakdown bar. Leave the payslip document itself — letterhead, two-column
 * body, net-pay footer — so it reads as a pre-filled payslip artifact.
 * Interaction handlers are short-circuited in JS. */
.maths-activity[data-display-mode="true"] .pe-row-slider,
.maths-activity[data-display-mode="true"] .pe-contract-tabs,
.maths-activity[data-display-mode="true"] .pe-prompt,
.maths-activity[data-display-mode="true"] #resetToExampleBtn,
.maths-activity[data-display-mode="true"] .pe-disclaimer,
.maths-activity[data-display-mode="true"] .pe-breakdown,
.maths-activity[data-display-mode="true"] .pe-explain-btn,
.maths-activity[data-display-mode="true"] .pe-doc-explanation {
    display: none !important;
}

.maths-activity[data-display-mode="true"] .pe-doc-deduction {
    cursor: default;
}

.maths-activity[data-display-mode="true"] .pe-doc-deduction:hover {
    background: transparent;
}