/* ===== quiet motion (js/fx.js) ===== */
.fxbg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; opacity: .75; }
.hdr-btns { display: flex; align-items: center; gap: 8px; }
.fxtog { background: none; border: 1px solid var(--border); color: var(--muted); border-radius: 50%; width: 2rem; height: 2rem; cursor: pointer; line-height: 1; padding: 0; flex: none; font-size: 1rem; }
.fxtog:hover, .fxtog:focus-visible { color: var(--accent); border-color: var(--accent); }
.fxtog[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); }
.fx-r { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; transition-delay: var(--d, 0s); }
.fx-r.in { opacity: 1; transform: none; }
nav.tabs { position: relative; }
.tab-ink { position: absolute; left: 0; bottom: 0; height: 2px; width: 0; background: var(--accent); border-radius: 2px; pointer-events: none; opacity: 0;
  transition: transform .4s cubic-bezier(.2, .8, .2, 1), width .4s cubic-bezier(.2, .8, .2, 1); }
.fx-on .tab-ink { opacity: 1; }
.fx-on .tab[aria-selected="true"] { border-bottom-color: transparent; }
.st-card { transition: transform .2s ease, box-shadow .2s ease; }
.st-card:hover { transform: translateY(-2px); box-shadow: 0 2px 4px rgba(20, 28, 60, .08), 0 10px 24px rgba(20, 28, 60, .1); }
@media (prefers-reduced-motion: reduce) { .fx-r { opacity: 1; transform: none; transition: none; } .tab-ink, .st-card { transition: none; } }
@media print { .fxbg, .fxtog { display: none; } }