/* =========================================================================
   ANCETRIE · stylesheet
   =========================================================================
   Design tokens — retune the palette here and it propagates everywhere.
   ========================================================================= */
:root {
  --ground-deep:   #1B0403; /* base field, near-black oxblood */
  --ground-raised: #2A0806; /* center-weighted vignette lift    */
  --bronze:        #9C6648; /* primary accent, most text        */
  --bronze-bright: #B8886D; /* active / hover state             */
  --bronze-dim:    #77533F; /* hairlines, rules, ornament       */
  --specular:      #F0D7C4; /* highlight only — never body text */

  --frame-inset: 24px;
  --frame-gap: 8px;
  --stage-size: 600px;

  --ease: cubic-bezier(.4, 0, .2, 1);
}

@media (max-width: 640px) {
  :root { --frame-inset: 12px; }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  position: fixed;
  inset: 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 300;
  color: var(--bronze);
  background-color: var(--ground-deep);
  /* Velvet field: base + soft radial lift + faint grain */
  background-image:
    radial-gradient(ellipse 70% 55% at 50% 45%,
      rgba(42, 8, 6, 0.9) 0%,
      rgba(42, 8, 6, 0.45) 35%,
      rgba(27, 4, 3, 0) 70%),
    radial-gradient(ellipse 120% 100% at 50% 50%,
      rgba(0, 0, 0, 0) 55%,
      rgba(0, 0, 0, 0.55) 100%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.61  0 0 0 0 0.4  0 0 0 0 0.28  0 0 0 0.04 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-blend-mode: normal, multiply, overlay;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

/* Focus rings — every interactive element */
:focus { outline: none; }
:focus-visible {
  outline: 1px solid var(--bronze-bright);
  outline-offset: 3px;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

/* =========================================================================
   LOADER
   ========================================================================= */
.loader {
  position: fixed;
  inset: 0;
  background: var(--ground-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 1s var(--ease);
}
.loader.is-done { opacity: 0; pointer-events: none; }

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.monogram {
  width: 96px;
  height: 112px;
  display: block;
}

.wordmark {
  font-size: 26px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--bronze);
  opacity: 0;
  transition: opacity 800ms var(--ease);
  font-weight: 300;
}
.wordmark.is-visible { opacity: 1; }

/* =========================================================================
   STAGE
   ========================================================================= */
.stage {
  position: fixed;
  inset: 0;
  opacity: 0;
  transition: opacity 900ms var(--ease);
}
.stage.is-visible { opacity: 1; }

/* Double-rule frame */
.frame {
  position: absolute;
  inset: var(--frame-inset);
  pointer-events: none;
  z-index: 5;
}
.frame-outer,
.frame-inner {
  position: absolute;
  border: 1px solid var(--bronze-dim);
}
.frame-outer { inset: 0; }
.frame-inner { inset: var(--frame-gap); }

/* Nav rail */
.nav {
  position: absolute;
  top: calc(var(--frame-inset) + 17px);
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  z-index: 10;
  height: 16px;
}
.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
}
.nav-item {
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--bronze);
  padding: 2px 0;
  transition: color 300ms var(--ease);
  font-weight: 300;
}
.nav-item:hover { color: var(--bronze-bright); }
.nav-item.is-active { color: var(--specular); }
.nav-dot {
  color: var(--bronze-dim);
  font-size: 14px;
  user-select: none;
  list-style: none;
}

/* Piece */
.piece {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 40px; /* sit slightly above optical center */
  z-index: 4;
  pointer-events: none;
}

.piece-image-wrap {
  width: min(var(--stage-size), calc(100vw - 140px), calc(100vh - 260px));
  aspect-ratio: 1 / 1;
  position: relative;
}

.piece-image {
  position: absolute;
  inset: 0;
  transition:
    opacity 700ms var(--ease),
    transform 700ms var(--ease);
  will-change: opacity, transform;
}
.piece-image.is-out { opacity: 0; transform: scale(0.96); }
.piece-image.is-in-start { opacity: 0; transform: scale(1.04); }

.placeholder {
  width: 100%;
  height: 100%;
  background: var(--ground-raised);
  border: 1px solid var(--bronze-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bronze-dim);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-align: center;
  padding: 24px;
}

.piece-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.piece-meta {
  margin-top: 28px;
  text-align: center;
  transition: opacity 500ms var(--ease) 200ms;
}
.piece-meta.is-out { opacity: 0; transition-delay: 0ms; }

.piece-title {
  font-size: 18px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--specular);
  font-weight: 300;
  margin: 0;
}

.ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 14px 0;
}
.ornament-rule {
  display: block;
  width: 60px;
  height: 1px;
  background: var(--bronze-dim);
}
.ornament-star {
  width: 10px;
  height: 10px;
  display: block;
}

.piece-caption {
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--bronze);
  font-weight: 300;
}

/* Arrow ribbons */
.arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bronze-dim);
  opacity: 0.3;
  transition: opacity 400ms var(--ease), color 400ms var(--ease);
  z-index: 8;
}
.arrow:hover {
  opacity: 1;
  color: var(--bronze-bright);
}
.arrow svg { width: 22px; height: 36px; display: block; }
.arrow--left { left: calc(var(--frame-inset) + var(--frame-gap) + 4px); }
.arrow--right { right: calc(var(--frame-inset) + var(--frame-gap) + 4px); }

@media (max-width: 640px) {
  .arrow { display: none; }
}

/* Share icon */
.share {
  position: absolute;
  bottom: calc(var(--frame-inset) + var(--frame-gap) + 12px);
  right: calc(var(--frame-inset) + var(--frame-gap) + 12px);
  width: 25px;
  height: 25px;
  color: var(--bronze-dim);
  transition: color 300ms var(--ease);
  z-index: 10;
}
.share:hover { color: var(--bronze-bright); }
.share svg { width: 100%; height: 100%; display: block; }

/* Ambient: botanicals (top-right + bottom-left) */
.botanical {
  position: absolute;
  width: 220px;
  height: 220px;
  opacity: 0.4;
  z-index: 2;
  pointer-events: none;
}
.botanical--tr { top: calc(var(--frame-inset) + 40px); right: calc(var(--frame-inset) + 24px); }
.botanical--bl { bottom: calc(var(--frame-inset) + 40px); left: calc(var(--frame-inset) + 24px); }

@media (max-width: 640px) {
  .botanical { width: 130px; height: 130px; opacity: 0.3; }
}

/* Ambient: veining (top-left + bottom-right — opposite corners to botanicals) */
.veining {
  position: absolute;
  width: 55vmin;
  height: 55vmin;
  max-width: 520px;
  max-height: 520px;
  opacity: 0.22;
  z-index: 1;
  pointer-events: none;
  mix-blend-mode: screen;
}
.veining--tl { top: 0; left: 0; }
.veining--br { bottom: 0; right: 0; }