/* ============================================================
   Calculadora de fechas · pestañas + exclusión de días
   ============================================================ */

.tabs{display:flex;gap:6px;background:var(--bg-tint);padding:5px;border-radius:14px;margin-bottom:16px}
.tab-btn{
  flex:1 1 0;font:inherit;font-weight:700;font-size:.86rem;padding:10px 10px;
  border:0;border-radius:10px;background:transparent;color:var(--muted);cursor:pointer;
  transition:background .12s ease, color .12s ease, box-shadow .12s ease;
}
.tab-btn[aria-selected="true"]{background:var(--card);color:var(--leaf-text);box-shadow:var(--shadow-sm)}
.tab-btn:focus-visible{outline:2px solid var(--leaf);outline-offset:2px}
.tab-panel[hidden]{display:none}

.dow-chips{display:flex;gap:6px;flex-wrap:wrap;margin:4px 0}
.dow-chip{position:relative;display:inline-block}
.dow-chip input{
  position:absolute;inset:0;opacity:0;margin:0;cursor:pointer;width:100%;height:100%;
}
.dow-chip span{
  display:grid;place-items:center;width:34px;height:34px;border-radius:9px;
  border:1.5px solid var(--line);font-size:.8rem;font-weight:700;color:var(--muted);
  background:var(--card);transition:background .12s ease, border-color .12s ease, color .12s ease;
}
.dow-chip input:checked + span{background:var(--leaf);border-color:var(--leaf);color:#fff}
.dow-chip input:focus-visible + span{outline:2px solid var(--leaf);outline-offset:2px}

.excl-panel{
  margin-top:10px;padding-top:12px;border-top:1px dashed var(--line);
  display:grid;gap:12px;transition:opacity .12s ease;
}
.excl-panel.is-disabled{opacity:.45;pointer-events:none}
.excl-sub{margin-top:8px;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--card-2)}
.excl-only-dias{color:var(--warn-ink);font-weight:600}

.custom-list{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.custom-chip{
  display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);
  border-radius:999px;padding:6px 8px 6px 12px;font-size:.83rem;font-weight:600;color:var(--ink);
}
.custom-chip button{
  border:0;background:var(--warn-bg);color:var(--warn-ink);width:20px;height:20px;border-radius:50%;
  font-size:.8rem;line-height:1;cursor:pointer;display:grid;place-items:center;
}
.custom-add{display:flex;gap:8px;align-items:flex-end;flex-wrap:wrap}
.custom-add input[type=date]{
  font:inherit;padding:9px 10px;border:1.5px solid var(--line);border-radius:9px;background:var(--card);color:var(--ink);
}
.custom-add button{
  font:inherit;font-weight:700;font-size:.85rem;color:#fff;background:var(--leaf);
  border:0;border-radius:9px;padding:9px 14px;cursor:pointer;white-space:nowrap;
}
.custom-add button:hover{background:var(--leaf-2)}