/* Node Features Styles */
.hidden {
    display: none;
}

/* スポイラー（目隠し）スタイル */
.node-spoiler {
    background-color: var(--md-sys-color-surface-variant);
    color: transparent;
    filter: blur(8px);
    cursor: pointer;
    transition: filter 0.3s ease, color 0.3s ease;
    user-select: none;
    border-radius: 4px;
    padding: 2px 4px;
}

.node-spoiler.is-revealed {
    color: inherit;
    filter: none;
    background-color: transparent;
    cursor: default;
    user-select: text;
}

/* CERO Z ダイアログ (Material 3 風) */
.node-dialog {
    border: none;
    border-radius: 28px;
    padding: 24px;
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
    max-width: 400px;
    box-shadow: var(--md-sys-elevation-3);
}

.node-dialog::backdrop {
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.node-dialog__content h2 {
    margin-top: 0;
    font-family: 'Inter', sans-serif;
}

.node-dialog__actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 24px;
}