/* ─── The Golden Thread Preloader Stylesheet ────────────────────── */

body.sk-loading {
  overflow: hidden !important;
  height: 100vh;
}

.sk-preloader-thread {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 900ms ease, visibility 900ms ease;
}

/* Two split panels that slide open vertically */
.sk-preloader-thread__panel {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50vh;
  background: #000000; /* Thick black background */
  z-index: 1;
  transition: transform 900ms cubic-bezier(0.76, 0, 0.24, 1);
}

.sk-preloader-thread__panel.top {
  top: 0;
  transform: translateY(0);
}

.sk-preloader-thread__panel.bottom {
  top: 50vh;
  transform: translateY(0);
}

/* Preloader canvas for the SVG thread */
.sk-preloader-thread__canvas {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 180px;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 10;
}

.sk-preloader-thread__svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* SVG Thread Path */
.sk-thread-path {
  /* Curved wave represent complexity */
  d: path('M 0,100 C 150,20 250,180 400,100 C 550,20 650,180 800,100 C 900,20 950,150 1000,100');
  stroke: #C9A44C;
  stroke-width: 2px;
  fill: none;
  stroke-dasharray: 2000;
  stroke-dashoffset: 2000;
  filter: drop-shadow(0 0 6px rgba(201, 164, 76, 0.5));
  transition: d 1400ms cubic-bezier(0.25, 1, 0.25, 1), stroke-dashoffset 2200ms cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 400ms ease;
}

/* Drawing class activates the dash drawing */
.sk-preloader-thread.sk-drawing .sk-thread-path {
  stroke-dashoffset: 0;
}

/* Straightening class animates path coordinates to flat line (clarity) */
.sk-preloader-thread.sk-straightening .sk-thread-path {
  d: path('M 0,100 C 150,100 250,100 400,100 C 550,100 650,100 800,100 C 900,100 950,100 1000,100');
}

/* Alignment Text Title */
.sk-preloader-thread__title {
  position: absolute;
  bottom: 12%;
  font-family: 'Cinzel Decorative', serif;
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #F4F1E8;
  opacity: 0.25;
  transform: translateY(0);
  transition: opacity 1200ms cubic-bezier(0.25, 1, 0.5, 1), transform 1200ms cubic-bezier(0.25, 1, 0.5, 1), letter-spacing 1200ms cubic-bezier(0.25, 1, 0.5, 1);
  text-align: center;
  z-index: 20;
}

.sk-preloader-thread.sk-straightening .sk-preloader-thread__title {
  opacity: 0.95;
  letter-spacing: 0.25em;
  color: #C9A44C;
  text-shadow: 0 0 15px rgba(201, 164, 76, 0.35);
}

/* Collapse Phase: Slide panels open vertically and fade graphics */
.sk-preloader-thread.sk-collapsing .sk-preloader-thread__panel.top {
  transform: translateY(-100%);
}

.sk-preloader-thread.sk-collapsing .sk-preloader-thread__panel.bottom {
  transform: translateY(100%);
}

.sk-preloader-thread.sk-collapsing .sk-thread-path {
  opacity: 0;
}

.sk-preloader-thread.sk-collapsing .sk-preloader-thread__title {
  opacity: 0;
  transform: translateY(20px);
}

.sk-preloader-thread.sk-collapsing {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}