/* ============================================================
   LIVING IMAGES — Harry Potter newspaper effect
   Every meaningful content <img> gets a subtle, looping alive-motion:
   Ken-Burns zoom+pan, breathing sway, shimmer/light-sweep.
   Effects are GPU-only (transform, opacity, filter).
   prefers-reduced-motion → no motion.
   ============================================================ */

/* --- wrapper injected by living-images.js ------------------- */
.li-wrap {
  display: inline-block;   /* preserves grid/flex item sizing */
  position: relative;
  overflow: hidden;        /* clips the motion without distorting layout */
  /* border-radius inherits from the img it wraps via the rule below */
}

/* keep the img itself filling the wrapper; the wrapper holds the size */
.li-wrap > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;       /* never distorts aspect ratio */
  /* transform-origin centred — JS overrides per-variant */
  transform-origin: center center;
  will-change: transform, filter;
}

/* --- shimmer/light-sweep overlay ---------------------------- */
.li-shimmer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    110deg,
    transparent 20%,
    rgba(255, 255, 255, 0.18) 48%,
    rgba(255, 255, 255, 0.32) 50%,
    rgba(255, 255, 255, 0.18) 52%,
    transparent 80%
  );
  background-size: 220% 100%;
  background-position: 200% 0;
  opacity: 0;
  mix-blend-mode: screen;
  will-change: background-position, opacity;
}

/* --- vignette overlay — gives depth, cheap ------------------- */
.li-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse at center,
    transparent 45%,
    rgba(0, 0, 0, 0.28) 100%
  );
  opacity: 0.6;
}

/* ============================================================
   KEYFRAMES — Ken-Burns variants (zoom + pan combos)
   We define several; JS picks one per image by index.
   ============================================================ */

/* variant 0 — slow zoom-in, drift upper-left → centre */
@keyframes li-kb-0 {
  0%   { transform: scale(1.00) translate(0%, 0%); }
  50%  { transform: scale(1.06) translate(-1.2%, -1.2%); }
  100% { transform: scale(1.00) translate(0%, 0%); }
}

/* variant 1 — slow zoom-out, drift lower-right → centre */
@keyframes li-kb-1 {
  0%   { transform: scale(1.06) translate(1.5%, 1.5%); }
  50%  { transform: scale(1.00) translate(0%, 0%); }
  100% { transform: scale(1.06) translate(1.5%, 1.5%); }
}

/* variant 2 — breathe (gentle in-out pulse, minimal pan) */
@keyframes li-kb-2 {
  0%   { transform: scale(1.00) translate(0%, 0%); }
  40%  { transform: scale(1.04) translate(-0.6%, 0.6%); }
  60%  { transform: scale(1.04) translate(0.6%, -0.6%); }
  100% { transform: scale(1.00) translate(0%, 0%); }
}

/* variant 3 — lateral float: left pan + slight zoom */
@keyframes li-kb-3 {
  0%   { transform: scale(1.05) translate(-1%, 0%); }
  50%  { transform: scale(1.02) translate(1%, 0.5%); }
  100% { transform: scale(1.05) translate(-1%, 0%); }
}

/* variant 4 — diagonal creep: top-right to bottom-left */
@keyframes li-kb-4 {
  0%   { transform: scale(1.07) translate(1.5%, -1.5%); }
  50%  { transform: scale(1.02) translate(-0.5%, 0.5%); }
  100% { transform: scale(1.07) translate(1.5%, -1.5%); }
}

/* variant 5 — heartbeat: two quick pulses, long rest */
@keyframes li-kb-5 {
  0%    { transform: scale(1.00); }
  8%    { transform: scale(1.025); }
  16%   { transform: scale(1.00); }
  24%   { transform: scale(1.035); }
  36%   { transform: scale(1.00) translate(0.3%, 0.3%); }
  100%  { transform: scale(1.00) translate(0%, 0%); }
}

/* shimmer sweep keyframe */
@keyframes li-shimmer-sweep {
  0%   { background-position: 200% 0; opacity: 0; }
  5%   { opacity: 1; }
  45%  { background-position: -20% 0; opacity: 0.9; }
  55%  { opacity: 0; }
  100% { background-position: -20% 0; opacity: 0; }
}

/* ============================================================
   ANIMATION CLASSES — applied by JS
   li-anim-0 … li-anim-5 pick the KB variant.
   li-shimmer-active fires the sweep.
   ============================================================ */

.li-anim-0 > img { animation: li-kb-0 var(--li-dur, 9s) var(--li-ease, ease-in-out) var(--li-delay, 0s) infinite; }
.li-anim-1 > img { animation: li-kb-1 var(--li-dur, 11s) var(--li-ease, ease-in-out) var(--li-delay, 0s) infinite; }
.li-anim-2 > img { animation: li-kb-2 var(--li-dur, 7s) var(--li-ease, ease-in-out) var(--li-delay, 0s) infinite; }
.li-anim-3 > img { animation: li-kb-3 var(--li-dur, 13s) var(--li-ease, ease-in-out) var(--li-delay, 0s) infinite; }
.li-anim-4 > img { animation: li-kb-4 var(--li-dur, 10s) var(--li-ease, ease-in-out) var(--li-delay, 0s) infinite; }
.li-anim-5 > img { animation: li-kb-5 var(--li-dur, 14s) var(--li-ease, ease-in-out) var(--li-delay, 0s) infinite; }

.li-shimmer-active > .li-shimmer {
  animation: li-shimmer-sweep var(--li-shimmer-period, 8s) linear var(--li-shimmer-delay, 0s) infinite;
}

/* ============================================================
   PAUSED — set when the image leaves the viewport (IntersectionObserver).
   Also applied globally under prefers-reduced-motion.
   ============================================================ */
.li-paused > img,
.li-paused > .li-shimmer {
  animation-play-state: paused !important;
}

@media (prefers-reduced-motion: reduce) {
  .li-wrap > img,
  .li-shimmer {
    animation: none !important;
  }
}

/* Lucky 2026-06-29: dislikes the shimmer — keep only the gentle Ken-Burns */
.li-shimmer { display: none !important; }