.dw-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
        gap: 22px;
        align-items: start;
    }
    @media (max-width: 800px) {
        .dw-layout { grid-template-columns: 1fr; }
    }
    .dw-col-stage { display: flex; flex-direction: column; align-items: center; gap: 14px; min-width: 0; }
    .dw-col-input { min-width: 0; }
    .dw-row-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
    .dw-stage {
        position: relative;
        width: min(320px, 100%);
        aspect-ratio: 1 / 1;
        height: auto;
        max-width: 100%;
    }
    .dw-svg {
        width: 100%; height: 100%;
        transition: transform 3.6s cubic-bezier(0.18, 0.85, 0.22, 1);
        transform: rotate(0deg);
        filter: drop-shadow(0 12px 40px rgba(0,0,0,0.45));
    }
    .dw-rim {
        fill: none; stroke: rgba(255,255,255,0.18); stroke-width: 4;
    }
    .dw-pointer {
        position: absolute;
        top: -6px; left: 50%; transform: translateX(-50%);
        width: 0; height: 0;
        border-left: 14px solid transparent;
        border-right: 14px solid transparent;
        border-top: 26px solid var(--calc-accent);
        z-index: 3;
        filter: drop-shadow(0 4px 6px rgba(0,0,0,0.4));
    }
    .dw-hub {
        position: absolute;
        top: 50%; left: 50%; transform: translate(-50%, -50%);
        width: 60px; height: 60px;
        border-radius: 50%;
        background: var(--pk-ink-2);
        border: 4px solid var(--calc-accent);
        display: flex; align-items: center; justify-content: center;
        color: var(--calc-accent);
        font-size: 1.3rem;
        z-index: 2;
        box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    }
    .dw-slice-text {
        font-size: 11px;
        font-weight: 800;
        fill: #04102B;
        font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    }
    .dw-result {
        text-align: center;
        padding: 18px 16px;
        width: 100%;
        max-width: 420px;
    }
    .dw-result__value {
        font-size: 1.8rem; font-weight: 900;
        margin: 6px 0 8px;
        background: linear-gradient(135deg, var(--calc-accent-2), var(--calc-accent));
        -webkit-background-clip: text; background-clip: text; color: transparent;
        word-break: break-word;
    }
    .pk-btn--xl { padding: 14px 28px; font-size: 1.05rem; min-width: 200px; justify-content: center; }
    .pk-btn--xl[disabled] { opacity: 0.55; cursor: not-allowed; }
    .pk-btn--sm { padding: 8px 12px; font-size: 0.82rem; }
    .pk-btn {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 10px 16px; border-radius: 10px;
        background: rgba(255,255,255,0.06);
        border: 1px solid rgba(255,255,255,0.12);
        color: var(--pk-fg); font-weight: 700; font-size: 0.85rem;
        cursor: pointer;
        transition: background .15s ease, border-color .15s ease;
    }
    .pk-btn--primary {
        background: linear-gradient(135deg, var(--calc-accent-2), var(--calc-accent));
        border-color: transparent; color: #04102B;
        transition: filter .15s ease;
    }
    /* Subtle hover/press: brightness only — keep gradient + dark text intact. */
    .pk-btn--primary:active { filter: brightness(0.95); transform: none; }
    /* Confetti canvas — overlay, doesn't capture clicks. */
    .dw-confetti {
        position: fixed; inset: 0;
        pointer-events: none;
        z-index: 9999;
    }
    @media (max-width: 480px) {
        .dw-stage { width: min(300px, 100%); }
        .dw-hub { width: 48px; height: 48px; font-size: 1.05rem; border-width: 3px; }
        .dw-pointer {
            border-left-width: 11px; border-right-width: 11px; border-top-width: 22px;
            top: -4px;
        }
        .dw-slice-text { font-size: 10px; }
        .dw-result__value { font-size: 1.5rem; }
        .pk-btn--xl { padding: 12px 20px; font-size: 1rem; min-width: 0; width: 100%; }
    }