/* Box-shadow generator */
.bs-stage { display: grid; place-items: center; min-height: 260px; padding: 40px 20px; border-radius: var(--r-lg); border: 1px solid var(--line); background: #eef1f8; transition: background 0.2s; }
.bs-box { display: grid; place-items: center; width: min(240px, 70%); aspect-ratio: 4 / 3; font-weight: 700; color: #111a2e; transition: box-shadow 0.12s, border-radius 0.12s; }
.bs-dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; border: 1px solid rgba(0, 0, 0, 0.2); }
.dz-range { grid-template-columns: minmax(0, 1fr) auto; }
.dz-num { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 0.82rem; font-weight: 600; }
.tool-ui .dz-num input[type='number'] { width: 76px; min-height: 36px; padding: 6px 8px; }
.bs-color-row { display: flex; gap: 8px; }
.bs-color-row input[type='color'] { flex-shrink: 0; }
.bs-presets { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
.bs-preset { display: grid; justify-items: stretch; gap: 8px; padding: 6px 6px 8px; border-radius: var(--r); border: 1px solid var(--line); background: var(--glass-soft); color: var(--ink-2); font: inherit; font-size: 0.8rem; font-weight: 700; cursor: pointer; }
.bs-pstage { display: grid; place-items: center; height: 70px; border-radius: 10px; }
.bs-pbox { width: 50px; height: 36px; border-radius: 8px; }
.bs-preset:hover, .bs-preset:focus-visible { border-color: var(--accent); outline: none; }
.tool-ui input.is-bad { border-color: var(--err); }
.dz-num > span { min-width: 20px; }