.stack-conflict-overlay{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:rgba(10,10,10,.72);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.stack-conflict-modal{width:min(640px,100%);max-height:min(90vh,720px);overflow:auto;padding:1.5rem;border-radius:12px;background:var(--paper,#faf8f4);color:var(--ink,#1a1a1a);box-shadow:0 24px 64px rgba(0,0,0,.28)}.stack-conflict-modal h2{margin:0 0 .5rem;font-size:1.35rem}.stack-conflict-lead{margin:0 0 1rem;color:rgba(26,26,26,.72);line-height:1.5}.stack-conflict-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:.75rem;gap:.75rem;margin-bottom:1.25rem}@media (max-width:640px){.stack-conflict-grid{grid-template-columns:1fr}}.stack-conflict-summary{padding:.875rem;border:1px solid rgba(26,26,26,.12);border-radius:8px;background:rgba(255,255,255,.55)}.stack-conflict-summary-label{margin:0 0 .5rem;font-size:.78rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:rgba(26,26,26,.55)}.stack-conflict-summary-list{margin:0;padding-left:1.1rem;line-height:1.45}.stack-conflict-summary-meta{margin:.5rem 0 0;font-size:.85rem;color:rgba(26,26,26,.65)}.stack-conflict-actions{display:flex;flex-wrap:wrap;gap:.5rem}.stack-conflict-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(26,26,26,.18);border-radius:999px;padding:.65rem 1rem;background:transparent;color:inherit;font:inherit;cursor:pointer}.stack-conflict-btn:disabled{opacity:.55;cursor:not-allowed}.stack-conflict-btn--primary{border-color:transparent;background:var(--ink,#1a1a1a);color:var(--paper,#faf8f4)}.stack-conflict-btn--secondary{background:rgba(26,26,26,.06)}.stack-conflict-keep-both{display:grid;grid-gap:.75rem;gap:.75rem}.stack-conflict-fieldset{margin:0;padding:.75rem;border:1px solid rgba(26,26,26,.12);border-radius:8px}.stack-conflict-legend{padding:0 .25rem;font-size:.85rem;font-weight:600}.stack-conflict-radio{display:flex;align-items:center;gap:.5rem;margin-top:.35rem}.stack-conflict-label{font-size:.85rem;font-weight:600}.stack-conflict-input{width:100%;padding:.65rem .75rem;border:1px solid rgba(26,26,26,.18);border-radius:8px;font:inherit;background:#fff}