.concept-picker-panel {
    background:
        radial-gradient(circle at top left, rgba(216,169,77,.16), transparent 22rem),
        rgba(24,27,37,.96);
}

.concept-choice-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.concept-choice-column {
    border: 1px solid rgba(216,169,77,.22);
    background:
        linear-gradient(180deg, rgba(244,233,207,.08), rgba(244,233,207,.035));
    border-radius: 18px;
    padding: 16px;
}

.concept-choice-column h4 {
    color: var(--accent-light);
    font-size: 1.12rem;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(216,169,77,.22);
}

.concept-choice {
    display: grid;
    grid-template-columns: auto auto 1fr;
    align-items: start;
    gap: 10px;
    border: 1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.035);
    border-radius: 14px;
    padding: 11px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: transform .14s ease, border-color .14s ease, background .14s ease;
    line-height: 1.35;
}

.concept-choice:hover {
    transform: translateY(-1px);
    border-color: rgba(240,201,119,.58);
    background: rgba(216,169,77,.10);
}

.concept-choice input {
    margin-top: 4px;
    accent-color: var(--accent);
}

.choice-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    border-radius: 999px;
    background: rgba(216,169,77,.16);
    color: var(--accent-light);
    font-weight: 900;
    font-size: .86rem;
}

.concept-choice:has(input:checked) {
    border-color: rgba(240,201,119,.85);
    background:
        linear-gradient(135deg, rgba(216,169,77,.20), rgba(255,255,255,.05));
    box-shadow: 0 12px 30px rgba(216,169,77,.08);
}

.concept-picker-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 18px;
}

.locked-concept-panel {
    background:
        linear-gradient(180deg, rgba(122,168,116,.12), transparent),
        rgba(24,27,37,.96);
    border-color: rgba(122,168,116,.38);
}

.locked-concept-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.locked-concept-grid div {
    border: 1px solid rgba(122,168,116,.28);
    background: rgba(122,168,116,.07);
    border-radius: 16px;
    padding: 16px;
}

.locked-concept-grid span {
    display: block;
    color: var(--accent);
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .12em;
    margin-bottom: 8px;
}

.locked-concept-grid strong {
    display: block;
    line-height: 1.35;
    font-size: 1.04rem;
}

@media (max-width: 1000px) {
    .concept-choice-grid,
    .locked-concept-grid {
        grid-template-columns: 1fr;
    }
}