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

:root {
  --text-color: #e8e0d4;
  --text-dim: rgba(232, 224, 212, 0.5);
  --bg-overlay: rgba(10, 8, 6, 0.6);
  --bg-overlay-dark: rgba(10, 8, 6, 1);
  --font-body: 'Cormorant Garamond', 'Georgia', serif;
  --text-position: left;

  --eyebrow-color: rgba(232, 224, 212, 0.45);
  --eyebrow-size: 0.75rem;

  --dot-size: 7px;
  --dot-gap: 10px;
  --dot-color: rgba(232, 224, 212, 0.35);
  --dot-active-color: rgba(132, 128, 124, 0.8);
}

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

body {
  font-family: var(--font-body);
  background: #0a0806;
  color: var(--text-color);
}

a {
  color: #e8e0d4;
  text-decoration: underline dotted;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
a:hover {
  color: #ffffff;
  text-decoration: none;
}

/* ── Dual background layers for crossfade ── */
.bg-layer {
  position: fixed;
  inset: -3%;
  width: 106%;
  height: 106%;
  z-index: 0;
  background-size: cover;
  background-position: center 40%;
  background-repeat: no-repeat;
  animation: bgBreathe 25s ease-in-out infinite alternate;
  transition: opacity 1.2s ease;
}

.bg-layer.underneath { z-index: 0; }
.bg-layer.on-top { z-index: 1; }
.bg-layer.hidden { opacity: 0; }

@keyframes bgBreathe {
  0%   { transform: scale(1.0)  translate(0, 0); }
  30%  { transform: scale(1.02) translate(0.3%, -0.2%); }
  60%  { transform: scale(1.01) translate(-0.2%, 0.15%); }
  100% { transform: scale(1.03) translate(0.15%, 0.1%); }
}

/* ── Title sprite (floating PNG on title screen) ── */
.title-sprite {
  position: fixed;
  inset: 0;
  z-index: 3;
  background-size: cover;
  background-position: center 40%;
  background-repeat: no-repeat;
  pointer-events: none;
  animation: spriteFloat 8s ease-in-out infinite alternate;
  transition: opacity 1.2s ease;
}

.title-sprite.hidden { opacity: 0; }

@keyframes spriteFloat {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(3px, -4px); }
  45%  { transform: translate(-2px, -7px); }
  70%  { transform: translate(4px, -3px); }
  100% { transform: translate(-1px, -6px); }
}

/* ── Overlay + vignette ── */
.bg-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  background: var(--bg-overlay);
  box-shadow: inset 0 0 200px 60px rgba(0,0,0,0.5);
  transition: background 1.2s ease;
  animation: overlayBreathe 12s ease-in-out infinite;
}

@keyframes overlayBreathe {
  0%   { opacity: 1; }
  35%  { opacity: 0.88; }
  65%  { opacity: 1.0; }
  85%  { opacity: 0.92; }
  100% { opacity: 1; }
}

.bg-overlay.blackout {
  background: var(--bg-overlay-dark);
  animation-play-state: paused;
  opacity: 1;
}

/* ── Ghost / misregistration layer ── */
.bg-ghost {
  position: fixed;
  inset: -3%;
  width: 106%;
  height: 106%;
  z-index: 3;
  background-size: cover;
  background-position: center 40%;
  background-repeat: no-repeat;
  opacity: 0.20;
  mix-blend-mode: screen;
  animation: ghostDrift 6s ease-in-out infinite alternate;
  transition: opacity 1.2s ease;
  pointer-events: none;
}

.bg-ghost.hidden { opacity: 0; }

@keyframes ghostDrift {
  0%   { transform: translate(4px, 2px)  scale(1.005); }
  25%  { transform: translate(-2px, 6px) scale(1.01); }
  50%  { transform: translate(4px, -1px) scale(1.003); }
  75%  { transform: translate(-3px, -3px) scale(1.008); }
  100% { transform: translate(2px, 4px)  scale(1.005); }
}

/* ── Film overlay ── */
.film-overlay {
  position: fixed;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  animation: filmFlicker 0.12s steps(1) infinite;
}

.film-overlay .film-grain {
  position: absolute;
  inset: -5%;
  width: 110%;
  height: 110%;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  animation: grainShift 0.4s steps(5) infinite;
}

.film-overlay .film-scratches {
  position: absolute;
  inset: -10%;
  width: 120%;
  height: 120%;
  background-image: url('img/scratch-texture-1.png');
  background-size: cover;
  background-position: center;
  mix-blend-mode: screen;
  opacity: 0.5;
  animation: scratchDrift 8s steps(1) infinite;
}

.film-overlay .film-dust {
  position: absolute;
  inset: 0;
  animation: dustShift 6s steps(1) infinite;
}

.film-overlay .film-dust::before,
.film-overlay .film-dust::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
}

.film-overlay .film-dust::before {
  width: 2px;
  height: 2px;
  top: 28vh;
  left: 40vw;
  box-shadow:
    72vw 15vh 0 1px rgba(255,255,255,0.35),
    25vw 78vh 0 1.5px rgba(255,255,255,0.25),
    88vw 40vh 0 0.8px rgba(255,255,255,0.4),
    10vw 55vh 0 1.2px rgba(255,255,255,0.3),
    53vw 8vh 0 0.8px rgba(255,255,255,0.35),
    40vw 90vh 0 1px rgba(255,255,255,0.2),
    95vw 68vh 0 1.5px rgba(255,255,255,0.25);
}

.film-overlay .film-dust::after {
  width: 1.5px;
  height: 1.5px;
  top: 65vh;
  left: 15vw;
  box-shadow:
    33vw 20vh 0 1px rgba(255,255,255,0.3),
    82vw 60vh 0 0.8px rgba(255,255,255,0.35),
    5vw 35vh 0 1.5px rgba(255,255,255,0.2),
    60vw 85vh 0 1px rgba(255,255,255,0.3),
    47vw 48vh 0 0.8px rgba(255,255,255,0.25);
}

/* ── Text container ── */
.reading-frame {
  position: relative;
  z-index: 5;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 2rem;
  overflow-y: auto;
  opacity: 0;
  transition: opacity 1.4s ease;
}

.reading-frame.visible { opacity: 1; }

.reading-frame[data-position="left"] {
  justify-content: flex-start;
  padding-left: clamp(3rem, 8vw, 10rem);
}

.reading-frame[data-position="center"] {
  justify-content: center;
}

.reading-frame[data-position="right"] {
  justify-content: flex-end;
  padding-right: clamp(3rem, 8vw, 10rem);
}

.reading-frame[data-position="right"] .text-body {
  text-align: right;
}

.text-body {
  max-width: 640px;
  font-size: clamp(1.25rem, 2.4vw, 1.65rem);
  font-weight: 300;
  line-height: 1.85;
  letter-spacing: 0.015em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.text-body p { text-indent: 2em; }
.text-body p:first-of-type { text-indent: 0; }

.text-body .sentence { opacity: 0; }

.reading-frame.visible .text-body .sentence {
  animation: sentenceReveal 1.4s ease-out forwards;
}

@keyframes sentenceReveal {
  from { opacity: 0; filter: blur(2px); }
  to   { opacity: 1; filter: blur(0); }
}

/* ── Start screen ── */
.start-screen {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  padding-top: 72vh;
  justify-content: center;
  pointer-events: none;
  transition: opacity 1.2s ease;
}

.start-screen.fullscreen-click {
  pointer-events: auto;
  cursor: pointer;
}

.start-screen.dismissed {
  opacity: 0;
  pointer-events: none;
}

.start-word {
  font-family: var(--font-body);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-dim);
  letter-spacing: 0.2em;
  text-transform: lowercase;
  user-select: none;
  pointer-events: auto;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.start-word.ready {
  opacity: 1;
  animation: hintPulse 2.5s ease-in-out infinite;
}

.start-screen.fullscreen-click .start-word { display: none; }

/* ── Loading counter ── */
.load-counter {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 20;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.7rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.1em;
  pointer-events: none;
  user-select: none;
  transition: opacity 0.6s ease;
}

.load-counter.hidden { opacity: 0; }

@keyframes hintPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.55; }
}

/* ── Eyebrow caption ── */
.eyebrow {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: var(--eyebrow-size);
  font-weight: 500;
  color: var(--eyebrow-color);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.2em;
  pointer-events: none;
}

/* ── Attribution line ── */
.attribution {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  margin-top: 1.8em;
  pointer-events: none;
}

.attribution em { font-style: italic; }

/* ── Right edge gradient ── */
.nav-edge {
  position: fixed;
  top: 0;
  right: 0;
  width: 180px;
  height: 100%;
  z-index: 5;
  background: linear-gradient(to left, rgba(0,0,0,0.45) 0%, transparent 100%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.nav-edge.visible { opacity: 1; }

/* ── Nav buttons (shared) ── */
.nav-btn {
  position: fixed;
  right: 2rem;
  z-index: 6;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.nav-btn.visible {
  opacity: 0.6;
  pointer-events: auto;
}

.nav-btn.visible:hover { opacity: 1; }
.nav-btn.hidden { display: none; }

.nav-btn.disabled {
  opacity: 0.15;
  pointer-events: none;
  cursor: default;
}

.nav-btn.disabled svg { stroke: #666666; }

.nav-btn svg {
  width: 28px;
  height: 44px;
  fill: none;
  stroke: #ffffff;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-btn.transitioning {
  pointer-events: none;
  opacity: 0.2;
}

.nav-next { top: 50%; transform: translateY(-100%); }
.nav-replay { top: 50%; transform: translateY(-100%); }
.nav-replay svg { width: 36px; height: 36px; fill: #ffffff; stroke: none; }
.nav-prev { top: 50%; transform: translateY(10%); }

/* ── Progress tracker ── */
.progress-tracker {
  position: fixed;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  display: flex;
  gap: var(--dot-gap);
  align-items: center;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.progress-tracker.visible {
  opacity: 1;
  pointer-events: auto;
}

.progress-dot {
  width: var(--dot-size);
  height: var(--dot-size);
  border-radius: 50%;
  border: 1px solid var(--dot-color);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background 0.4s ease, border-color 0.4s ease;
}

.progress-dot:hover { border-color: var(--dot-active-color); }

.progress-dot.active {
  background: var(--dot-active-color);
  border-color: var(--dot-active-color);
}

/* ── Mute toggle ── */
.mute-btn {
  position: fixed;
  bottom: 2.4rem;
  right: 2.4rem;
  z-index: 6;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.mute-btn.visible {
  opacity: 0.3;
  pointer-events: auto;
}

.mute-btn.visible:hover { opacity: 0.6; }

.mute-btn svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: var(--text-color);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ── Film keyframes ── */
@keyframes filmFlicker {
  0%   { opacity: 1; }
  10%  { opacity: 0.96; }
  20%  { opacity: 1; }
  50%  { opacity: 0.98; }
  70%  { opacity: 0.94; }
  80%  { opacity: 1; }
  100% { opacity: 0.97; }
}

@keyframes grainShift {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-2%, -3%); }
  50%  { transform: translate(1%, 2%); }
  75%  { transform: translate(-1%, 1%); }
  100% { transform: translate(2%, -1%); }
}

@keyframes scratchDrift {
  0%   { transform: translate(0, 0); }
  14%  { transform: translate(-2%, -1%); }
  28%  { transform: translate(1%, 2%); }
  42%  { transform: translate(-1%, -3%); }
  57%  { transform: translate(3%, 1%); }
  71%  { transform: translate(-2%, 2%); }
  85%  { transform: translate(1%, -1%); }
  100% { transform: translate(0, 0); }
}

@keyframes dustShift {
  0%   { transform: translate(0, 0); }
  12%  { transform: translate(1px, -1px); }
  25%  { transform: translate(-1px, 0); }
  37%  { transform: translate(0, 1px); }
  50%  { transform: translate(1px, 1px); }
  62%  { transform: translate(-1px, -1px); }
  75%  { transform: translate(0, -1px); }
  87%  { transform: translate(1px, 0); }
  100% { transform: translate(0, 0); }
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .reading-frame {
    padding: 1.5rem;
    align-items: flex-start;
    padding-top: 15vh;
  }
  .reading-frame[data-position="left"] { padding-left: 1.5rem; }
  .reading-frame[data-position="right"] { padding-right: 1.5rem; }
  .text-body { font-size: 1.15rem; line-height: 1.75; }
  .nav-btn { right: 0.8rem; }
}