/* ============================================================
   TRINITY MOTION LAYER — CSS companion
   Canvas inversion, 3D flip, optimistic undo, reveal states.
   ============================================================ */

.will-reveal { opacity: 0; }
.will-reveal.is-revealed { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .will-reveal { opacity: 1 !important; transform: none !important; }
}

/* ---------- Cash App full-bleed canvas inversion ---------- */
.inv-wash {
  position: fixed; inset: 0; z-index: 80;
  /* Decorative only. It has no interactive children, and if its teardown ever
     fails to run it must not be able to swallow clicks on the page beneath. */
  pointer-events: none;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-6);
  text-align: center;
  background: var(--accent-fill);
  color: var(--accent-fg);
  clip-path: circle(0% at 50% 62%);
  opacity: 0;
}
.inv-wash.inv-calm { background: var(--surface-rf-navy, var(--surface-2)); color: var(--text-primary); }
.inv-wash.inv-green { background: var(--accent-fill); color: var(--accent-fg); }
.inv-inner { max-width: 22ch; }
.inv-kicker {
  font: 500 var(--fs-11) / 1 var(--font-mono);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  opacity: 0.74;
  margin: 0 0 var(--space-4);
}
.inv-line {
  font: 600 var(--fs-48) / var(--lh-tight) var(--font-sans);
  letter-spacing: -0.03em;
  margin: 0;
}
.inv-sub {
  font: 400 var(--fs-18) / var(--lh-body) var(--font-sans);
  margin: var(--space-4) 0 0;
  opacity: 0.86;
}
@media (max-width: 640px) {
  .inv-line { font-size: var(--fs-32); }
  .inv-sub { font-size: var(--fs-16); }
}

/* ---------- 600ms 3D flip ---------- */
.flip3d {
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
}
.flip3d .flip-front,
.flip3d .flip-back {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.flip3d .flip-front { position: relative; }
.flip3d .flip-back {
  position: absolute; inset: 0;
  transform: rotateY(180deg);
}
.flip3d.is-flipped .flip-front { visibility: hidden; }
.flip-scene { perspective: 1400px; }
@media (prefers-reduced-motion: reduce) {
  .flip3d { transform: none !important; }
  .flip3d .flip-back { transform: none; }
  .flip3d.is-flipped .flip-front { display: none; }
}

/* ---------- Superhuman optimistic undo ---------- */
.undo-host {
  position: fixed;
  left: 50%; transform: translateX(-50%);
  bottom: calc(var(--space-6) + env(safe-area-inset-bottom));
  z-index: 50;
  display: flex; flex-direction: column; gap: var(--space-3);
  width: min(94vw, 460px);
  pointer-events: none;
}
.undo-toast {
  position: relative;
  pointer-events: auto;
  display: flex; align-items: center; gap: var(--space-4);
  background: var(--surface-3);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.44);
  overflow: hidden;
}
.undo-msg {
  flex: 1 1 auto;
  font: 500 var(--fs-14) / var(--lh-body) var(--font-sans);
  color: var(--text-primary);
}
.undo-btn {
  flex: none;
  font: 600 var(--fs-14) / 1 var(--font-sans);
  color: var(--accent-text);
  background: transparent;
  border: 1px solid var(--border-input);
  border-radius: var(--radius-full);
  min-height: 40px; padding: 0 var(--space-4);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.undo-btn:hover { border-color: var(--accent-text); }
.undo-btn:active { transform: scale(0.97); }
.undo-count {
  flex: none;
  font: 500 var(--fs-14) / 1 var(--font-mono);
  color: var(--text-faint);
  font-variant-numeric: var(--num-tabular);
  min-width: 1.2em; text-align: right;
}
.undo-track {
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--hairline-soft);
}
.undo-track i {
  display: block; height: 100%; width: 100%;
  transform-origin: left center;
  background: var(--accent-text);
}

/* ---------- balance ring ---------- */
.ring-wrap { position: relative; display: inline-grid; place-items: center; }
.ring-wrap svg { display: block; transform: rotate(-90deg); }
.ring-track { fill: none; stroke: var(--hairline); stroke-width: 10; }
.ring-arc {
  fill: none; stroke: var(--accent-text); stroke-width: 10;
  stroke-linecap: round;
}
.ring-mid {
  position: absolute; text-align: center;
}
.ring-mid .ring-num {
  display: block;
  font: 600 var(--fs-32) / var(--lh-tight) var(--font-sans);
  color: var(--text-primary);
  font-variant-numeric: var(--num-tabular);
  letter-spacing: -0.02em;
}
.ring-mid .ring-cap {
  display: block;
  font: 500 var(--fs-11) / 1 var(--font-mono);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: var(--space-2);
}

/* ---------- sticky nav condense ---------- */
[data-nav] { transition: padding var(--dur-med) var(--ease), backdrop-filter var(--dur-med) var(--ease); }
[data-nav].is-condensed { padding-top: var(--space-3); padding-bottom: var(--space-3); }

/* ---------- universal interactive motion floor ---------- */
button, .btn, .chip, [role="button"], a.btn, .ghost, input, select, textarea {
  transition: background-color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}


/* one-shot ledger row highlight — 400ms, once, never a pulse loop */
@keyframes rowFlash {
  0%   { background-color: rgba(99, 91, 255, 0);    }
  22%  { background-color: rgba(99, 91, 255, 0.16); }
  100% { background-color: rgba(99, 91, 255, 0);    }
}
.row-flash { animation: rowFlash 400ms var(--ease) both; }
@media (prefers-reduced-motion: reduce) { .row-flash { animation: none; } }