/* ==========================================================================
   ANIMATIONS.CSS — Scroll reveal, micro-interactions, signature flow motif
   ========================================================================== */

/* -------------------- Scroll reveal (Intersection Observer driven) -------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal="scale"] { transform: scale(0.95); }
[data-reveal="scale"].is-visible { transform: scale(1); }

[data-reveal-group] > * { transition-delay: calc(var(--i, 0) * 90ms); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* -------------------- Signature element: animated flow line --------------------
   Represents restored water flow through a cleared pipe/drain — the core
   promise of the service. Used in hero background & as section dividers. */
.flow-line {
  stroke-dasharray: 6 10;
  stroke-linecap: round;
  animation: flow-move 3.2s linear infinite;
}
@keyframes flow-move {
  to { stroke-dashoffset: -160; }
}

.flow-divider { width: 100%; height: 48px; display: block; }

@media (prefers-reduced-motion: reduce) {
  .flow-line { animation: none; }
}

/* -------------------- Floating elements -------------------- */
.float-anim { animation: float-y 5s var(--ease-in-out) infinite; }
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* -------------------- Loading -------------------- */
.page-loader {
  position: fixed; inset: 0;
  z-index: 9999;
  background: var(--color-bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 420ms var(--ease-out), visibility 420ms;
}
.page-loader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.page-loader__mark {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-700));
  display: flex; align-items: center; justify-content: center;
  animation: loader-pulse 1.1s var(--ease-in-out) infinite;
}
.page-loader__mark svg { width: 30px; height: 30px; color: #fff; }
@keyframes loader-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.88); opacity: 0.7; }
}

/* -------------------- Hover micro-interactions -------------------- */
.hoverlift { transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out); }
.hoverlift:hover { transform: translateY(-4px); }

/* -------------------- Counter -------------------- */
.stat__num[data-counting]::after { content: ''; }

/* -------------------- Marquee (trust strip) -------------------- */
.marquee { overflow: hidden; }
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 28s linear infinite;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }