/*
 * ratio-bars — two or three horizontal bars that scale against each
 * other. Teaches ratio, proportion, and share-of-total.
 */

.maths-activity .rb-ratio-headline {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    background: var(--maths-primary-soft, #e8f5e9);
    border-radius: 12px;
    border-left: 4px solid var(--maths-primary, #2E7D32);
}

.maths-activity .rb-ratio-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--maths-text-muted, #6b7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.maths-activity .rb-ratio-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--maths-primary-dark, #1b5e20);
    letter-spacing: 0.05em;
}

.maths-activity .rb-bars {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.maths-activity .rb-bar-row {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: 0.75rem;
    align-items: center;
}

.maths-activity .rb-bar-label {
    font-weight: 700;
    color: var(--maths-text, #1f2937);
    text-align: right;
}

.maths-activity .rb-bar-track {
    position: relative;
    height: 36px;
    background: #eef1f5;
    border-radius: 8px;
    overflow: hidden;
}

.maths-activity .rb-bar-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    transition: width 200ms ease-out;
    display: flex;
    align-items: center;
    padding-left: 0.75rem;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
}

.maths-activity .rb-bar-stats {
    min-width: 120px;
    font-size: 0.9rem;
    color: var(--maths-text-muted, #6b7280);
    font-weight: 600;
    text-align: right;
}

.maths-activity .rb-bar-stats strong {
    color: var(--maths-primary-dark, #1b5e20);
    font-size: 1rem;
}

.maths-activity .rb-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.maths-activity .rb-control {
    background: #fff;
    border: 1px solid var(--maths-border, #e0e7ef);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.maths-activity .rb-control-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--maths-text-muted, #6b7280);
}

.maths-activity .rb-control input[type="range"] {
    width: 100%;
    accent-color: var(--maths-primary, #2E7D32);
}

.maths-activity .rb-control-value {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--maths-primary-dark, #1b5e20);
}

.maths-activity .rb-total-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--maths-text, #1f2937);
}

.maths-activity .rb-total-input {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: #fff;
    border: 1px solid var(--maths-border, #e0e7ef);
    border-radius: 8px;
    padding: 0.25rem 0.5rem;
    font-weight: 700;
}

.maths-activity .rb-total-input input {
    border: none;
    outline: none;
    width: 100px;
    font-size: 1rem;
    font-weight: 700;
}

.maths-activity .rb-target-label {
    font-weight: 800;
    color: #8d4e0b;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.maths-activity .rb-target-prompt { flex: 1; font-weight: 700; color: #1f2937; }

.maths-activity .rb-mode-chip {
    display: inline-block;
    background: var(--maths-primary-soft, #e8f5e9);
    color: var(--maths-primary-dark, #1b5e20);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-top: 0.5rem;
}


.maths-activity .rb-your-turn {
    margin-top: 1rem;
    background: #f3f7fb;
    border: 1px dashed var(--maths-border, #bac6d4);
    border-radius: 12px;
    padding: 1rem 1.25rem;
}

.maths-activity .rb-your-turn-label { font-weight: 800; color: var(--maths-primary-dark, #1b5e20); margin-bottom: 0.5rem; }
.maths-activity .rb-your-turn-list { margin: 0; padding-left: 1.25rem; }

@media (max-width: 640px) {
    .maths-activity .rb-bar-row {
        grid-template-columns: 100px 1fr;
    }
    .maths-activity .rb-bar-stats { grid-column: 1 / -1; text-align: left; }
}

/* Display mode — content snapshot. Hide the slider controls, target
 * panel, callout and challenge runner; tighten the ratio headline and
 * bar tracks so the snapshot stays compact. Your-turn prompts stay —
 * those are display-only discussion prompts. The total-row input
 * stays visible (when used) but locked.
 */
body.display-mode .rb-controls,
body.display-mode .rb-target-panel,
body.display-mode .rb-callout,
body.display-mode #challengeRunner { display: none !important; }

body.display-mode .rb-total-row input {
    pointer-events: none;
    background: transparent;
    border-color: transparent;
}

body.display-mode .rb-ratio-headline {
    padding: 0.5rem 0.85rem;
    margin-bottom: 0.75rem;
}

body.display-mode .rb-ratio-value {
    font-size: 1.5rem;
}

body.display-mode .rb-bars {
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

body.display-mode .rb-bar-track {
    height: 28px;
}

body.display-mode .rb-bar-label,
body.display-mode .rb-bar-stats {
    font-size: 0.85rem;
}

body.display-mode .rb-bar-stats strong {
    font-size: 0.95rem;
}