/* ============================================================
   PKmotors — loader full-cycle (one shot)
   - SVG paths inline (brand-accurate)
   - Animate only wrappers (transform + opacity) for smoothness
   - Dark -> Light background crossfade inside loader
   ============================================================ */

:root {
  --loader-duration: 1430ms;
  --loader-fade: 420ms;
  --loader-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

#app-loader.app-loader {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: grid;
  place-items: center;
  pointer-events: all;
  opacity: 1;
  transition: opacity var(--loader-fade) cubic-bezier(0.2, 0.8, 0.2, 1),
              transform var(--loader-fade) cubic-bezier(0.2, 0.8, 0.2, 1);
  transform: translateY(0);
}
#app-loader.app-loader.is-hiding {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.loader-bg {
  position: absolute;
  inset: 0;
  will-change: opacity;
  transition: none;
}
.loader-bg--dark {
  opacity: 1;
  background-color: #0a0a0c;
  background-image:
    radial-gradient(80% 70% at 40% 10%, rgba(93, 116, 145, 0.18) 0%, transparent 62%),
    radial-gradient(70% 60% at 100% 45%, rgba(62, 81, 104, 0.14) 0%, transparent 70%),
    radial-gradient(70% 60% at 0% 100%, rgba(26, 31, 40, 0.22) 0%, transparent 70%),
    linear-gradient(180deg, #0a0a0c 0%, #0a0a0c 100%);
}
.loader-bg--light {
  opacity: 0;
  background-color: #f5f5f7;
  background-image:
    radial-gradient(80% 70% at 40% 10%, rgba(79, 101, 128, 0.10) 0%, transparent 62%),
    radial-gradient(70% 60% at 100% 45%, rgba(93, 116, 145, 0.10) 0%, transparent 70%),
    radial-gradient(70% 60% at 0% 100%, rgba(47, 62, 81, 0.08) 0%, transparent 70%),
    linear-gradient(180deg, #f5f5f7 0%, #f5f5f7 100%);
}

/* Fade dark->light during the cycle */
html[data-loading="true"] .loader-bg--dark { animation: loaderBgDark var(--loader-duration) linear 1 forwards; }
html[data-loading="true"] .loader-bg--light { animation: loaderBgLight var(--loader-duration) linear 1 forwards; }

/* Subtle grain + vignette (static, no filters) */
#app-loader.app-loader::before,
#app-loader.app-loader::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}
#app-loader.app-loader::before {
  opacity: 0.12;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence baseFrequency='0.85' numOctaves='2' seed='7'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
}
#app-loader.app-loader::after {
  opacity: 0.9;
  background:
    radial-gradient(60% 60% at 50% 50%, rgba(0,0,0,0) 0%, rgba(0,0,0,0.18) 72%, rgba(0,0,0,0.32) 100%);
}

@keyframes loaderBgDark {
  0% { opacity: 1; }
  35% { opacity: 1; }
  100% { opacity: 0; }
}
@keyframes loaderBgLight {
  0% { opacity: 0; }
  35% { opacity: 0; }
  100% { opacity: 1; }
}

.loader-mark {
  width: 240px;
  height: 240px;
  position: relative;
  contain: layout paint;
}
.loader-mark::before,
.loader-mark::after {
  content: "";
  position: absolute;
  inset: -28px;
  pointer-events: none;
  border-radius: 999px;
  transform: translateZ(0);
}
.loader-mark::before {
  opacity: 0.55;
  background:
    radial-gradient(closest-side, rgba(93, 116, 145, 0.18) 0%, rgba(93, 116, 145, 0.10) 32%, transparent 70%),
    radial-gradient(closest-side, rgba(79, 101, 128, 0.14) 0%, transparent 62%);
}
.loader-mark::after {
  opacity: 0.55;
  background:
    radial-gradient(closest-side, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.06) 36%, transparent 68%);
}

.loader-letter {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  will-change: transform, opacity;
  transform: translateZ(0);
  opacity: 0;
}
.loader-letter svg {
  width: 180px;
  height: 180px;
  overflow: visible;
}
.loader-letter path { shape-rendering: geometricPrecision; }
.loader-letter path:not([data-no-stroke]) {
  paint-order: stroke fill;
  stroke: rgba(255,255,255,0.22);
  stroke-width: 6;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.loader-letter--k path:not([data-no-stroke]) { stroke: rgba(255,255,255,0.18); }

/* Material richness: add a second, tighter rim without filters */
.loader-letter path {
  stroke-dasharray: 0;
}
.loader-letter svg {
  transform: translateZ(0);
}
.loader-letter--p svg path,
.loader-letter--k svg path {
  /* Outer rim already from stroke above; this adds a subtle inner crispness. */
  stroke-opacity: 0.22;
}
@supports (stroke: color(display-p3 1 1 1)) {
  .loader-letter path:not([data-no-stroke]) { stroke: color(display-p3 1 1 1 / 0.2); }
  .loader-letter--k path:not([data-no-stroke]) { stroke: color(display-p3 1 1 1 / 0.17); }
}
html[data-loading="true"] .loader-letter--p { animation: loaderP var(--loader-duration) linear 1 forwards; }
html[data-loading="true"] .loader-letter--k { animation: loaderK var(--loader-duration) linear 1 forwards; }

@keyframes loaderP {
  0% { opacity: 0; transform: translate3d(-44px, 22px, 0) rotate(-0.2deg); }
  10% { opacity: 1; transform: translate3d(-35px, 18px, 0) rotate(-0.14deg); }
  25% { transform: translate3d(-22px, 11px, 0) rotate(-0.08deg); }
  40% { transform: translate3d(-12px, 6px, 0) rotate(-0.04deg); }
  55% { transform: translate3d(-5px, 2px, 0) rotate(0deg); }
  65% { transform: translate3d(0px, 0px, 0) rotate(0deg); }
  100% { opacity: 1; transform: translate3d(0px, 0px, 0) rotate(0deg); }
}
@keyframes loaderK {
  0% { opacity: 0; transform: translate3d(44px, -22px, 0) rotate(0.2deg); }
  10% { opacity: 1; transform: translate3d(35px, -18px, 0) rotate(0.14deg); }
  25% { transform: translate3d(22px, -11px, 0) rotate(0.08deg); }
  40% { transform: translate3d(12px, -6px, 0) rotate(0.04deg); }
  55% { transform: translate3d(5px, -2px, 0) rotate(0deg); }
  65% { transform: translate3d(0px, 0px, 0) rotate(0deg); }
  100% { opacity: 1; transform: translate3d(0px, 0px, 0) rotate(0deg); }
}

@media (prefers-reduced-motion: reduce) {
  html[data-loading="true"] .loader-bg--dark,
  html[data-loading="true"] .loader-bg--light,
  html[data-loading="true"] .loader-letter--p,
  html[data-loading="true"] .loader-letter--k {
    animation: none !important;
  }
  .loader-bg--dark { opacity: 0; }
  .loader-bg--light { opacity: 1; }
  .loader-letter { opacity: 1; transform: none !important; }
  #app-loader.app-loader { transition: none; }
}