/*
 * Loader v2 — the trailers' end card (components/trailers SceneLogo, trailer.css
 * .trl-logo) as the loading screen, then an occultation reveal of the page.
 * Pure CSS: the head script sets html[data-loader="on"] on every full page load;
 * without JS the loader never shows. "skip" (any click / tap / key / wheel) fades it
 * at once; "done" removes the layer. Timings: constants.ts.
 *
 * Every element's resting style is its final frame (what reduced motion shows);
 * keyframes only say where things come from. Only transform and opacity animate,
 * so the whole sequence runs on the compositor even while the page hydrates.
 */
.loader {
  display: none;
}

html[data-loader='on'] .loader,
html[data-loader='skip'] .loader {
  --e: clamp(150px, 44vmin, 250px); /* eclipse box */
  --cy: 42%; /* eclipse centre, from the top of the screen */
  position: fixed;
  inset: 0;
  z-index: 100;
  display: block;
  overflow: hidden;
  pointer-events: auto;
  animation: loader-off 0.01s linear 1.78s forwards;
}

/* The skip: a quick fade, keeping the layer hit-testable until it is gone so the
   click that skipped it doesn't land on the page underneath. */
html[data-loader='skip'] .loader {
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.18s ease,
    visibility 0s linear 0.18s;
}

/*
 * The night sky is a disc bigger than any screen (radius 80vmax ≥ the farthest corner
 * from the eclipse), lit at its limb. At the end the whole loading screen dissolves —
 * the sky fades and the eclipse + wordmark blur out in place — and the page appears
 * under it (nothing flies off to a corner).
 */
.loader-sky {
  position: absolute;
  left: 50%;
  top: var(--cy);
  width: 160vmax;
  height: 160vmax;
  margin: -80vmax 0 0 -80vmax;
  border-radius: 50%;
  background: var(--void);
  box-shadow:
    0 0 0 1px rgb(255 240 205 / 0.6),
    0 0 34px 6px rgb(255 232 176 / 0.5),
    0 0 130px 40px rgb(245 185 66 / 0.2);
  animation: loader-dissolve 0.6s ease-in-out 1.18s forwards;
}
/* A few faint stars, fading with the sky. */
.loader-sky::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  box-shadow:
    -41vmin -27vmin 0 0 rgb(244 239 230 / 0.42),
    -24vmin -39vmin 0 -0.4px rgb(244 239 230 / 0.3),
    31vmin -33vmin 0 0 rgb(244 239 230 / 0.36),
    44vmin -12vmin 0 -0.4px rgb(244 239 230 / 0.28),
    -47vmin 8vmin 0 -0.4px rgb(244 239 230 / 0.26),
    39vmin 21vmin 0 0 rgb(244 239 230 / 0.3),
    -33vmin 36vmin 0 -0.4px rgb(244 239 230 / 0.22),
    18vmin 43vmin 0 -0.4px rgb(244 239 230 / 0.2),
    9vmin -47vmin 0 -0.4px rgb(255 232 176 / 0.34),
    -12vmin 49vmin 0 -0.4px rgb(244 239 230 / 0.18);
}

.loader-scene {
  position: absolute;
  left: 50%;
  top: calc(50% - var(--e) / 2);
  display: flex;
  flex-direction: column;
  align-items: center;
  width: max-content;
  max-width: calc(100vw - 32px);
  transform: translateX(-50%);
  text-align: center;
  animation: loader-scene-out 0.6s ease-in 1.18s forwards;
}

/* ---- The eclipse (same construction as .trl-eclipse) ------------------ */
.loader-eclipse {
  position: relative;
  flex: none;
  width: var(--e);
  height: var(--e);
}
.loader-eclipse > span {
  position: absolute;
  border-radius: 50%;
}
.loader-glow {
  inset: -30%;
  background: radial-gradient(closest-side, rgb(245 185 66 / 0.36) 30%, rgb(245 185 66 / 0.12) 55%, transparent 100%);
  animation: loader-glow 0.9s var(--ease-expo) 0.62s both;
}
.loader-corona {
  inset: 4%;
  background:
    radial-gradient(
      closest-side,
      transparent 52%,
      rgb(255 248 230 / 1) 56%,
      rgb(255 232 176 / 0.85) 60%,
      rgb(245 185 66 / 0.35) 72%,
      transparent 100%
    ),
    repeating-conic-gradient(
      from 0deg,
      rgb(255 232 176 / 0) 0deg 5deg,
      rgb(255 232 176 / 0.3) 8deg,
      rgb(255 232 176 / 0) 11deg 17deg
    );
  -webkit-mask-image: radial-gradient(closest-side, #000 60%, rgb(0 0 0 / 0.5) 80%, transparent 100%);
  mask-image: radial-gradient(closest-side, #000 60%, rgb(0 0 0 / 0.5) 80%, transparent 100%);
  animation: loader-corona 0.95s var(--ease-expo) 0.66s both;
}
.loader-sun {
  inset: 25%;
  background: radial-gradient(circle, #fffaf0 0%, var(--flare) 55%, var(--corona) 100%);
  box-shadow: 0 0 30px 6px rgb(255 232 176 / 0.45);
  animation: loader-sun 0.45s var(--ease-expo) both;
}
.loader-moon {
  inset: 24.5%;
  background: radial-gradient(circle at 38% 34%, #0d0d16 0%, #050509 60%, #020204 100%);
  animation: loader-moon 0.78s cubic-bezier(0.45, 0, 0.25, 1) 0.02s both;
}
/* Diamond ring: a bright bead on the limb where the moon covers the sun last (45°). */
.loader-eclipse > .loader-glint {
  left: 68%;
  top: 32%;
  width: 30%;
  height: 30%;
  margin: -15% 0 0 -15%;
  border-radius: 0;
  background: radial-gradient(
    circle,
    #fff 0 5%,
    rgb(255 250 235 / 0.95) 9%,
    rgb(255 236 190 / 0.45) 20%,
    transparent 46%
  );
  opacity: 0.85;
  transform: scale(0.72) rotate(12deg);
  animation: loader-glint 0.62s cubic-bezier(0.2, 0.7, 0.3, 1) 0.74s both;
}
.loader-glint::before,
.loader-glint::after {
  content: '';
  position: absolute;
  left: -25%;
  right: -25%;
  top: 50%;
  height: 1.5px;
  margin-top: -0.75px;
  background: linear-gradient(90deg, transparent, rgb(255 250 238 / 0.95) 50%, transparent);
}
.loader-glint::after {
  transform: rotate(90deg);
}

/* ---- Wordmark + end line (as .trl-wordmark / .trl-endline) ------------ */
.loader-word {
  display: flex;
  margin-top: clamp(10px, 2.4vmin, 26px);
  padding-left: 0.5em; /* optically re-centre the tracked letters */
  overflow: hidden;
  font-size: clamp(15px, 1.2vmin + 10px, 22px);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.5em;
  color: var(--dawn);
  white-space: nowrap;
}
.loader-word span {
  display: inline-block;
  animation: loader-letter 0.62s var(--ease-expo) both;
  animation-delay: calc(0.38s + var(--i) * 45ms);
}
.loader-line {
  margin-top: 0.85em;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(16px, 1.4vmin + 11px, 23px);
  line-height: 1.25;
  color: var(--mist);
  animation: loader-rise 0.55s var(--ease-expo) 0.66s both;
}

/* ---- Keyframes --------------------------------------------------------- */
@keyframes loader-sun {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
}
@keyframes loader-moon {
  from {
    transform: translate(-78%, 26%);
  }
}
@keyframes loader-corona {
  from {
    opacity: 0;
    transform: scale(0.72) rotate(-20deg);
  }
}
@keyframes loader-glow {
  from {
    opacity: 0;
    transform: scale(0.6);
  }
}
@keyframes loader-glint {
  0% {
    opacity: 0;
    transform: scale(0) rotate(-35deg);
  }
  32% {
    opacity: 1;
    transform: scale(1.18) rotate(0deg);
  }
  100% {
    opacity: 0.85;
    transform: scale(0.72) rotate(12deg);
  }
}
@keyframes loader-letter {
  from {
    opacity: 0;
    transform: translateY(90%);
  }
}
@keyframes loader-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}
@keyframes loader-dissolve {
  to {
    opacity: 0;
  }
}
/* The eclipse and the wordmark blur out in place (a small layer: cheap to blur), a touch
   larger, as if the light diffused into the page. translateX keeps the scene centred. */
@keyframes loader-scene-out {
  0% {
    opacity: 1;
    filter: blur(0);
    transform: translateX(-50%) scale(1);
  }
  100% {
    opacity: 0;
    filter: blur(14px);
    transform: translateX(-50%) scale(1.06);
  }
}
@keyframes loader-off {
  to {
    visibility: hidden;
    pointer-events: none;
  }
}
@keyframes loader-fade {
  to {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
}

/* Reduced motion: the final frame, still, then a short fade (≤ 400 ms in all). */
@media (prefers-reduced-motion: reduce) {
  html[data-loader='on'] .loader {
    animation: loader-fade 0.26s ease 0.12s forwards !important;
  }
  html[data-loader] .loader *,
  html[data-loader] .loader *::before,
  html[data-loader] .loader *::after {
    animation: none !important;
  }
}