.waterpath {
  margin: 1.5rem 0;
  padding: clamp(.75rem, 2vw, 1.25rem);
  border: 1px solid #b8cede;
  border-radius: 16px;
  background: #f3f8fc;
  color: #0b2d62;
  min-width: 0;
}
.waterpath *, .waterpath *::before, .waterpath *::after { box-sizing: border-box; }
.waterpath h3 { margin: 0 0 .65rem; font-size: 1.25rem; }
.waterpath p { margin: .65rem 0; line-height: 1.75; overflow-wrap: anywhere; }
.waterpath [hidden] { display: none !important; }
.waterpath-navigation { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .5rem; margin: 1rem 0; }
.waterpath button {
  appearance: none;
  display: block;
  min-width: 0;
  min-height: 44px;
  margin: 0;
  padding: .65rem .8rem;
  border: 1px solid #557597;
  border-radius: 9px;
  background: #fff;
  color: #0b2d62;
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  white-space: normal;
  overflow-wrap: anywhere;
  cursor: pointer;
}
.waterpath button:focus-visible { outline: 3px solid #0b5ca8; outline-offset: 3px; }
.waterpath button[aria-current="step"], .waterpath [data-waterpath-start] { background: #0b2d62; color: #fff; }
.waterpath button:disabled { opacity: .55; cursor: default; }
.waterpath .aie-btn { position: static; margin: .8rem 0 0 auto; width: auto; }
.waterpath-canvas { position: relative; width: 100%; margin: .8rem 0; overflow: hidden; border-radius: 12px; }
.waterpath-canvas > img { display: block; width: 100%; height: auto; margin: 0; border: 0; border-radius: 0; }
.waterpath-overlay { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.waterpath-overlay [data-waterpath-stage] { opacity: 0; }
.waterpath-overlay [data-waterpath-stage][data-active="true"] { opacity: 1; }
.waterpath-highlight { fill: none; stroke: #056b70; stroke-width: 8; stroke-linecap: round; stroke-linejoin: round; }
.waterpath-flow { fill: none; stroke: #fff; stroke-width: 8; stroke-dasharray: 12 16; stroke-linecap: round; }
.waterpath[data-waterpath-playing="true"] .waterpath-overlay [data-active="true"] .waterpath-flow { animation: waterpath-flow 1.6s linear infinite; }
.waterpath-explanation { padding: .75rem 1rem; border-left: 4px solid #056b70; background: #fff; border-radius: 0 10px 10px 0; }
.waterpath-explanation h4 { margin: .4rem 0; font-size: 1.1rem; }
.waterpath-progress { font-weight: 700; color: #056b70; }
.waterpath-controls { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .5rem; margin-top: 1rem; }
.waterpath .waterpath-mode { font-size: .95rem; color: #385775; }
.waterpath figcaption { margin-top: .8rem; }
@keyframes waterpath-flow { to { stroke-dashoffset: -56; } }
@media (max-width: 600px) {
  .waterpath-navigation { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .waterpath-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .waterpath-explanation { padding: .65rem .75rem; }
}
@media (prefers-reduced-motion: reduce) {
  .waterpath .waterpath-overlay .waterpath-flow { animation: none !important; }
}