/* ═══════════════════════════════════════════════════════════════
   ArtID Museum Template — style.css
   A refined editorial gallery aesthetic.
   Pure CSS, no frameworks. Long-form by design.
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Palette: charcoal wall, deep shadow, parchment light, museum gold */
  --wall-1:        #0e0d0c;
  --wall-2:        #15130f;
  --wall-3:        #1a1815;
  --shadow:        #050505;
  --parchment:     #ece4d2;
  --parchment-dim: #b8aa8e;
  --gold:          #c8a35a;
  --gold-soft:     #d8b977;
  --ink:           #ddd2b8;
  --rule:          rgba(200, 163, 90, 0.18);

  /* Typography */
  --font-display: "Cormorant Garamond", "Times New Roman", serif;
  --font-ui:      "Manrope", -apple-system, sans-serif;

  /* Geometry */
  --max:          1180px;
  --rad-frame:    2px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-ui);
  font-weight: 300;
  color: var(--ink);
  background: var(--wall-1);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; }
.mono { font-family: "JetBrains Mono", "SF Mono", ui-monospace, monospace; font-size: 0.9em; }


/* ════════════════════════════════════════════════════════════════
   THE HALL — first viewport, the gallery interior
   ════════════════════════════════════════════════════════════════ */

.hall {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  background:
    radial-gradient(ellipse at 50% 0%, var(--wall-3) 0%, var(--wall-1) 55%, var(--shadow) 100%);
  overflow: hidden;
  isolation: isolate;
  padding: 32px 24px 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

/* ─── Ambient atmosphere layers ─── */

.ambient {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

/* The main spotlight casts a soft cone on the centerpiece */
.spotlight {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  mix-blend-mode: screen;
  opacity: 0.55;
  animation: lampFlicker 9s ease-in-out infinite;
}
.spotlight--main {
  width: 70vw; height: 70vh;
  left: 50%; top: -10%;
  transform: translateX(-50%);
  background: radial-gradient(closest-side,
    rgba(255, 226, 165, 0.35),
    rgba(255, 207, 130, 0.12) 50%,
    transparent 75%);
}
.spotlight--left {
  width: 40vw; height: 50vh;
  left: -10%; top: 10%;
  background: radial-gradient(closest-side,
    rgba(180, 140, 80, 0.18),
    transparent 70%);
  animation-duration: 13s;
}
.spotlight--right {
  width: 40vw; height: 50vh;
  right: -10%; top: 10%;
  background: radial-gradient(closest-side,
    rgba(180, 140, 80, 0.18),
    transparent 70%);
  animation-duration: 11s;
}

@keyframes lampFlicker {
  0%, 92%, 100% { opacity: 0.55; }
  93%           { opacity: 0.42; }
  94%           { opacity: 0.6; }
  95%           { opacity: 0.5; }
}

/* Polished marble floor */
.floor {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 28%;
  background:
    linear-gradient(to bottom,
      transparent 0%,
      rgba(0,0,0,0.35) 30%,
      rgba(0,0,0,0.7) 100%),
    repeating-linear-gradient(
      90deg,
      rgba(255,255,255,0.012) 0px,
      rgba(255,255,255,0.012) 2px,
      transparent 2px,
      transparent 80px
    );
  border-top: 1px solid rgba(200, 163, 90, 0.08);
}
.floor::after {
  /* subtle reflection band on the floor below the artwork */
  content: "";
  position: absolute;
  left: 50%; top: 0;
  width: 40%; height: 100%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at top, rgba(255, 220, 160, 0.06), transparent 70%);
}

/* Almost-imperceptible wall grain (SVG noise) */
.wall-grain {
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
  opacity: 0.5;
}

/* Slow drifting dust motes in the spotlight cone */
.dust {
  position: absolute; inset: 0;
  background:
    radial-gradient(1px 1px at 23% 40%, rgba(255,230,180,0.5), transparent 50%),
    radial-gradient(1px 1px at 67% 22%, rgba(255,230,180,0.4), transparent 50%),
    radial-gradient(1px 1px at 81% 55%, rgba(255,230,180,0.5), transparent 50%),
    radial-gradient(1px 1px at 12% 70%, rgba(255,230,180,0.3), transparent 50%),
    radial-gradient(1px 1px at 45% 12%, rgba(255,230,180,0.4), transparent 50%),
    radial-gradient(1px 1px at 90% 80%, rgba(255,230,180,0.3), transparent 50%);
  animation: dustDrift 22s linear infinite;
  opacity: 0.7;
}
@keyframes dustDrift {
  from { transform: translateY(0); }
  to   { transform: translateY(-30px); }
}


/* ─── Top bar ─── */

.topbar {
  position: relative;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 8px 0 0;
  color: var(--parchment-dim);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.3em;
  font-weight: 500;
  text-transform: none;
}
.brand:hover { color: var(--gold-soft); }
.hall-meta {
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.hall-meta__label { color: var(--parchment-dim); }
.hall-meta__value {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  color: var(--parchment);
  letter-spacing: 0.05em;
  text-transform: lowercase;
}


/* ════════════════════════════════════════════════════════════════
   THE EXHIBIT — framed artwork, the centerpiece
   ════════════════════════════════════════════════════════════════ */

.exhibit {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 0 60px;
  width: 100%;
}

.frame {
  position: relative;
  max-width: 620px;
  width: 100%;
  cursor: zoom-in;
  animation: frameEnter 1.4s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  /* deep cast shadow on the wall + soft glow from spotlight */
  filter:
    drop-shadow(0 30px 60px rgba(0,0,0,0.65))
    drop-shadow(0 8px 16px rgba(0,0,0,0.5));
}
@keyframes frameEnter {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}

/* Gilded carved frame, built from layered gradients */
.frame__matte {
  position: relative;
  padding: 22px;
  background:
    linear-gradient(135deg,
      #c8a35a 0%,
      #8e6f37 25%,
      #d8b977 50%,
      #6e5424 75%,
      #c8a35a 100%);
  border-radius: var(--rad-frame);
  box-shadow:
    inset 0 0 0 1px rgba(255, 220, 150, 0.6),
    inset 0 0 0 4px rgba(0, 0, 0, 0.35),
    inset 0 0 0 5px rgba(255, 220, 150, 0.25),
    inset 0 0 30px rgba(0, 0, 0, 0.55);
}
.frame__matte::before,
.frame__matte::after {
  /* engraved inner & outer bevel lines */
  content: "";
  position: absolute;
  pointer-events: none;
  border: 1px solid rgba(0, 0, 0, 0.4);
  border-radius: var(--rad-frame);
}
.frame__matte::before { inset: 8px;  border-color: rgba(255, 220, 150, 0.25); }
.frame__matte::after  { inset: 14px; border-color: rgba(0, 0, 0, 0.6); }

.frame__art {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--shadow);
  border: 1px solid rgba(0, 0, 0, 0.5);
}

/* Brass museum plaque under the frame */
.plaque {
  position: relative;
  margin: 18px auto 0;
  max-width: 80%;
  padding: 14px 22px;
  background: linear-gradient(180deg, #1f1c17, #161310);
  border: 1px solid var(--rule);
  border-top: 1px solid rgba(200, 163, 90, 0.35);
  box-shadow: 0 6px 20px rgba(0,0,0,0.6);
}
.plaque__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 4px 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--parchment-dim);
  border-bottom: 1px dashed rgba(200, 163, 90, 0.08);
}
.plaque__row:last-child { border-bottom: 0; }
.plaque__row--title {
  border-bottom-color: rgba(200, 163, 90, 0.25);
  padding-bottom: 8px;
  margin-bottom: 4px;
}
.plaque__title {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--parchment);
  letter-spacing: 0.04em;
  text-transform: none;
  font-style: italic;
  font-weight: 400;
}
.plaque__label { color: var(--parchment-dim); }
.plaque__value { color: var(--parchment); font-family: var(--font-ui); }


/* Scroll cue */
.scroll-cue {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--parchment-dim);
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  padding-bottom: 24px;
  animation: cueBob 2.4s ease-in-out infinite;
}
@keyframes cueBob {
  0%, 100% { transform: translateY(0);   opacity: 0.7; }
  50%      { transform: translateY(6px); opacity: 1; }
}


/* ════════════════════════════════════════════════════════════════
   THE VISITORS — silhouettes that walk and photograph
   ════════════════════════════════════════════════════════════════ */

.visitors {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  pointer-events: none;
  z-index: 2; /* between ambient and frame */
}

.visitor {
  position: absolute;
  bottom: 6%;
  width: 70px;
  height: 180px;
  /* Silhouette built from layered radial+linear gradients to draw a hunched museum-goer */
  background:
    /* head */
    radial-gradient(circle at 50% 8%, rgba(0,0,0,0.92) 0 18px, transparent 19px),
    /* shoulders + body */
    radial-gradient(ellipse 38% 8% at 50% 24%, rgba(0,0,0,0.92) 60%, transparent 62%),
    linear-gradient(to bottom,
      transparent 14%,
      rgba(0,0,0,0.85) 22%,
      rgba(0,0,0,0.85) 70%,
      transparent 72%),
    /* legs */
    linear-gradient(to right,
      transparent 38%,
      rgba(0,0,0,0.85) 40%,
      rgba(0,0,0,0.85) 47%,
      transparent 49%,
      transparent 51%,
      rgba(0,0,0,0.85) 53%,
      rgba(0,0,0,0.85) 60%,
      transparent 62%);
  background-repeat: no-repeat;
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%;
  filter: blur(0.4px);
  opacity: 0.85;
}

/* Tiny pinpoint of light where the camera/phone is held — gets brighter on flash */
.visitor__camera {
  position: absolute;
  top: 38%;
  left: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 235, 180, 0.6);
  box-shadow: 0 0 4px rgba(255, 235, 180, 0.5);
  transform: translateX(-50%);
  transition: all 0.05s linear;
}
.visitor.is-flashing .visitor__camera {
  background: #fffce8;
  box-shadow:
    0 0 12px 4px rgba(255, 252, 232, 0.95),
    0 0 36px 12px rgba(255, 240, 180, 0.6);
}

/* Distance-based scale: visitors farther away are smaller and dimmer */
.visitor--far  { transform: scale(0.55); opacity: 0.45; filter: blur(1.2px); }
.visitor--mid  { transform: scale(0.78); opacity: 0.65; filter: blur(0.8px); }
.visitor--near { transform: scale(1);    opacity: 0.85; filter: blur(0.4px); }


/* ─── Walking keyframes — visitors stroll across, pause, then keep walking ─── */

@keyframes walkPathA {
  0%   { left: -10%;  }
  35%  { left: 30%;   }
  45%  { left: 30%;   } /* pause to look */
  100% { left: 110%;  }
}
@keyframes walkPathB {
  0%   { left: 110%;  }
  40%  { left: 55%;   }
  50%  { left: 55%;   } /* pause to photograph */
  100% { left: -10%;  }
}
@keyframes walkPathC {
  0%   { left: -10%;  }
  50%  { left: 70%;   }
  60%  { left: 70%;   }
  100% { left: 110%;  }
}

.visitor--a { animation: walkPathA 38s linear infinite; }
.visitor--b { animation: walkPathB 46s linear infinite; animation-delay: -8s; }
.visitor--c { animation: walkPathC 52s linear infinite; animation-delay: -22s; }
.visitor--d { animation: walkPathA 60s linear infinite; animation-delay: -15s; }
.visitor--e { animation: walkPathB 44s linear infinite; animation-delay: -30s; }


/* Subtle leg sway via background-position-x oscillation is impractical with this
   gradient setup, so we give each visitor a tiny vertical bob to suggest walking */
.visitor {
  animation-name: walkPathA, visitorBob;
  animation-duration: inherit, 0.7s;
  animation-iteration-count: infinite, infinite;
  animation-timing-function: linear, ease-in-out;
}
@keyframes visitorBob {
  0%, 100% { margin-bottom: 0; }
  50%      { margin-bottom: 2px; }
}


/* ════════════════════════════════════════════════════════════════
   THE FLASH — bright white overlay when a camera fires
   ════════════════════════════════════════════════════════════════ */

.flash {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at var(--flash-x, 50%) var(--flash-y, 60%),
              rgba(255, 252, 232, 0.95) 0%,
              rgba(255, 252, 232, 0.6) 8%,
              rgba(255, 252, 232, 0.1) 20%,
              transparent 35%);
  opacity: 0;
  pointer-events: none;
  z-index: 4;
  mix-blend-mode: screen;
}
.flash.is-firing {
  animation: flashFire 0.45s ease-out;
}
@keyframes flashFire {
  0%   { opacity: 0; }
  8%   { opacity: 1; }
  15%  { opacity: 0.4; }
  22%  { opacity: 0.85; }   /* secondary pop */
  100% { opacity: 0; }
}


/* ════════════════════════════════════════════════════════════════
   THE PASSPORT — second viewport, metadata as a curated catalog
   ════════════════════════════════════════════════════════════════ */

.passport {
  position: relative;
  background:
    linear-gradient(180deg, var(--shadow) 0%, var(--wall-2) 30%, var(--wall-2) 100%);
  padding: 120px 24px 80px;
}
.passport::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--rule), transparent);
}

.passport__inner {
  max-width: 860px;
  margin: 0 auto;
}

.passport__heading {
  text-align: center;
  margin-bottom: 80px;
}

.eyebrow {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
}

.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: italic;
  color: var(--parchment);
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

.lede {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 20px;
  line-height: 1.6;
  color: var(--parchment-dim);
  max-width: 600px;
  margin: 0 auto;
}

/* Block separator: thin gold rule with center ornament */
.block {
  position: relative;
  margin-bottom: 80px;
}
.block::before {
  content: "❦";
  display: block;
  text-align: center;
  color: var(--gold);
  font-size: 20px;
  margin-bottom: 28px;
  opacity: 0.6;
}

.block__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  text-align: center;
  margin-bottom: 36px;
}


/* ─── Traits ─── */

.traits {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.trait {
  position: relative;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--rule);
  transition: all 0.3s ease;
}
.trait:hover {
  background: rgba(200, 163, 90, 0.04);
  border-color: rgba(200, 163, 90, 0.4);
  transform: translateY(-2px);
}
.trait__type {
  display: block;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}
.trait__value {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--parchment);
  font-style: italic;
}
.trait__rarity {
  display: block;
  font-size: 10px;
  color: var(--parchment-dim);
  margin-top: 6px;
}


/* ─── Ledger (on-chain data) ─── */

.ledger {
  border-top: 1px solid var(--rule);
}
.ledger__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  padding: 18px 4px;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
  gap: 16px;
}
.ledger__row dt {
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--parchment-dim);
}
.ledger__row dd {
  color: var(--parchment);
  word-break: break-all;
}
.ledger__row dd a {
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: border-color 0.2s;
}
.ledger__row dd a:hover { border-bottom-color: var(--gold); }

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
  justify-content: center;
}
.btn-link {
  font-size: 12px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
  padding: 14px 24px;
  border: 1px solid var(--rule);
  transition: all 0.3s ease;
}
.btn-link:hover {
  border-color: var(--gold);
  background: rgba(200, 163, 90, 0.05);
  color: var(--gold-soft);
}


/* ─── Timeline ─── */

.timeline {
  list-style: none;
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--rule);
}
.timeline__item {
  position: relative;
  margin-bottom: 32px;
  padding-left: 12px;
}
.timeline__item::before {
  content: "";
  position: absolute;
  left: -28px; top: 6px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(200, 163, 90, 0.18);
}
.timeline__item--placeholder::before {
  background: transparent;
  border: 1px solid var(--rule);
  box-shadow: none;
}
.timeline__year {
  display: block;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}
.timeline__item strong {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  color: var(--parchment);
  font-size: 20px;
  margin-bottom: 4px;
}
.timeline__item p {
  color: var(--parchment-dim);
  font-size: 14px;
  line-height: 1.7;
}


/* ════════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════════ */

.foot {
  background: var(--shadow);
  padding: 40px 24px;
  border-top: 1px solid var(--rule);
}
.foot__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}
.foot__mark {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.4em;
  color: var(--gold);
  margin-bottom: 4px;
}
.foot__line {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--parchment-dim);
}
.foot__line a {
  color: var(--parchment);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}
.foot__cid {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--parchment-dim);
}
.foot__cid-label {
  color: var(--gold);
  margin-right: 8px;
}


/* ════════════════════════════════════════════════════════════════
   LIGHTBOX
   ════════════════════════════════════════════════════════════════ */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 5, 0.96);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 40px;
  backdrop-filter: blur(8px);
}
.lightbox.is-open { display: flex; animation: fadeIn 0.3s ease; }
.lightbox__img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 30px 80px rgba(0,0,0,0.8);
}
.lightbox__close {
  position: absolute;
  top: 24px; right: 32px;
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--parchment);
  width: 44px; height: 44px;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: all 0.2s;
}
.lightbox__close:hover { border-color: var(--gold); color: var(--gold); }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}


/* ════════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .hall { padding: 20px 16px 0; }
  .frame { max-width: 92vw; }
  .plaque { max-width: 100%; padding: 12px 16px; }
  .plaque__title { font-size: 18px; }
  .topbar { font-size: 10px; flex-direction: column; gap: 8px; align-items: flex-start; }
  .passport { padding: 80px 20px 60px; }
  .ledger__row { grid-template-columns: 1fr; gap: 4px; }
  .ledger__row dt { font-size: 10px; }
  .traits { grid-template-columns: 1fr 1fr; }
  .visitor { width: 50px; height: 130px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .flash { display: none; }
  .visitors { display: none; }
}