:root {
  --paper: #f1e7d2;
  --paper-2: #e6d6bc;
  --ink: #171411;
  --muted: rgba(23, 20, 17, 0.62);
  --line: rgba(23, 20, 17, 0.18);
  --shadow: rgba(58, 49, 38, 0.14);
  --surface-glow: rgba(157, 220, 240, 0.10);
  --mid-glow: rgba(76, 168, 202, 0.12);
  --deep-glow: rgba(18, 81, 110, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 8%, rgba(255,255,255,0.55), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(255,255,255,0.35), transparent 20%),
    linear-gradient(to bottom, #fbf7ef 0%, #f2e7d5 28%, #ecdcc8 56%, #e8ddcb 82%, #e2d7c6 100%);
  transition: background 1.2s ease;
}

body.depth-1,
body.depth-2,
body.depth-3,
body.depth-4,
body.depth-5 {
  background:
    radial-gradient(circle at 18% 8%, rgba(255,255,255,0.55), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(255,255,255,0.35), transparent 20%),
    linear-gradient(to bottom, #fbf7ef 0%, #f2e7d5 28%, #ecdcc8 56%, #e8ddcb 82%, #e2d7c6 100%);
}

.paper-noise,
.water-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.paper-noise {
  z-index: 0;
  opacity: 0.15;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(0,0,0,0.16) 0 0.6px, transparent 0.8px),
    radial-gradient(circle at 40% 65%, rgba(0,0,0,0.12) 0 0.5px, transparent 0.7px),
    radial-gradient(circle at 75% 30%, rgba(0,0,0,0.12) 0 0.65px, transparent 0.85px),
    radial-gradient(circle at 85% 80%, rgba(0,0,0,0.08) 0 0.6px, transparent 0.8px);
  background-size: 220px 220px, 180px 180px, 260px 260px, 140px 140px;
  mix-blend-mode: multiply;
}

.water-glow {
  z-index: 1;
  opacity: 0;
  transition: opacity 1.2s ease;
  background:
    linear-gradient(to bottom, transparent 0%, transparent 30%, rgba(255,255,255,0.18) 54%, transparent 70%),
    repeating-linear-gradient(to bottom, transparent 0 36px, rgba(255,255,255,0.08) 37px, transparent 74px);
}

.water-glow {
  opacity: 0.08;
}

#page-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 1rem 1.15rem;
  background: linear-gradient(to bottom, rgba(251,247,239,0.94), rgba(251,247,239,0.72), rgba(251,247,239,0));
  transition: opacity 0.9s ease;
  font-family: Arial, Helvetica, sans-serif;
}

#page-header.faded {
  opacity: 0;
  pointer-events: none;
}

.header-link,
.header-center {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
}

.header-center {
  justify-self: center;
  font-style: italic;
  text-transform: lowercase;
  color: var(--muted);
}

.header-center::after {
  content: " ↓";
  font-style: normal;
}

.header-end {
  justify-self: end;
}

.poem-page {
  position: relative;
  z-index: 2;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20vh 1.1rem 42vh;
}

.block {
  position: relative;
  opacity: 0;
  transform: translate3d(0, 36px, 0) rotate(var(--block-tilt, 0deg)) scale(0.99);
  filter: blur(8px);
  transition: opacity 1.5s ease, transform 1.5s ease, filter 1.5s ease;
  will-change: transform, opacity, filter;
}

.block.visible {
  opacity: 1;
  filter: blur(0);
  transform: translate3d(0, 0, 0) rotate(var(--block-tilt, 0deg)) scale(1);
}

.block.near {
  opacity: 0.16;
  filter: blur(0);
}

.visible-on-load {
  opacity: 1;
  transform: translate3d(0, 0, 0) rotate(0deg) scale(1);
  filter: blur(0);
}

.title-block {
  width: fit-content;
  margin: 0 0 14vh 8%;
}

.title-block h1 {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(2.6rem, 8vw, 5rem);
  line-height: 0.93;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.text-block {
  width: fit-content;
  max-width: min(90vw, 29em);
  margin-bottom: 14vh;
  background: rgba(248, 242, 231, 0.56);
  border: 1px solid rgba(23, 20, 17, 0.10);
  box-shadow: 0 10px 36px var(--shadow);
  padding: 0.95rem 1.15rem 1rem;
  backdrop-filter: blur(1px);
}

.text-block p {
  margin: 0;
  font-size: clamp(0.92rem, 1.8vw, 1.12rem);
  line-height: 1.92;
  letter-spacing: 0.008em;
  text-wrap: balance;
}

.image-block {
  width: fit-content;
  margin-bottom: 12vh;
}

.image-block figure {
  margin: 0;
}

.image-block img {
  display: block;
  max-width: 100%;
  height: auto;
  background: rgba(250, 247, 240, 0.8);
  border: 1px solid rgba(23, 20, 17, 0.18);
  padding: 8px;
  box-shadow: 0 14px 42px var(--shadow);
}

.small-plate img { width: min(100%, 470px); }
.circular-plate img { width: min(100%, 360px); }
.portrait-plate img { width: min(100%, 370px); }
.large-plate img { width: min(100%, 520px); }
.plate-wide img { width: min(100%, 720px); }
.surface img { width: min(100%, 420px); }

.divider-block {
  margin: 1vh 0 8vh;
}

.divider {
  width: min(28vw, 220px);
  height: 1px;
  background: linear-gradient(to right, transparent, var(--line), transparent);
}

.plate-left { margin-left: 6%; }
.plate-mid { margin-left: 24%; }
.plate-right { margin-left: 48%; }
.plate-center { margin-left: auto; margin-right: auto; }
.plate-wide { margin-left: 8%; }

.text-block + .text-block {
  margin-top: 3vh;
}

.image-block + .text-block {
  margin-top: 2vh;
}

.final-text {
  margin-top: 5vh;
  margin-bottom: 14vh;
}

.end-block {
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
}

.back-link {
  display: inline-block;
  padding: 0.7rem 1.1rem;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid rgba(23, 20, 17, 0.18);
  background: rgba(248, 242, 231, 0.72);
}

.drift,
.wobble,
.glitch-water {
  display: inline-block;
}

.block.visible .drift {
  animation: driftWord 7s ease-in-out infinite;
}

.block.visible .wobble {
  animation: wobbleWord 5.4s ease-in-out infinite;
}

.block.visible .glitch-water {
  animation: glitchWater 5.2s ease-in-out infinite;
}

.block.visible.text-block {
  animation: paperFloat 10s ease-in-out infinite;
}

.block.visible.image-block {
  animation: imageFloat 13s ease-in-out infinite;
}

@keyframes paperFloat {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(var(--block-tilt, 0deg)) scale(1); }
  50% { transform: translate3d(0, -2px, 0) rotate(calc(var(--block-tilt, 0deg) + 0.12deg)) scale(1); }
}

@keyframes imageFloat {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(var(--block-tilt, 0deg)) scale(1); }
  50% { transform: translate3d(0, -3px, 0) rotate(calc(var(--block-tilt, 0deg) - 0.1deg)) scale(1); }
}

@keyframes driftWord {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  25% { transform: translate3d(1px, -1px, 0) rotate(-0.35deg); }
  50% { transform: translate3d(2px, -2px, 0) rotate(0.5deg); }
  75% { transform: translate3d(-1px, -1px, 0) rotate(-0.2deg); }
}

@keyframes wobbleWord {
  0%, 100% { transform: skewX(0deg) translateY(0); }
  20% { transform: skewX(1.6deg) translateY(-1px); }
  50% { transform: skewX(-2.6deg) translateY(1px); }
  80% { transform: skewX(1deg) translateY(-1px); }
}

@keyframes glitchWater {
  0%, 100% { transform: translate3d(0, 0, 0); filter: blur(0); opacity: 1; }
  18% { transform: translate3d(1px, 0, 0); filter: blur(0.2px); }
  19% { transform: translate3d(-1px, 0, 0); filter: blur(0.25px); opacity: 0.92; }
  21% { transform: translate3d(2px, 0, 0); filter: blur(0); opacity: 1; }
  53% { transform: translate3d(1px, 0, 0); filter: blur(0.3px); opacity: 0.94; }
  55% { transform: translate3d(-1px, 0, 0); filter: blur(0.1px); opacity: 1; }
}

@media (max-width: 900px) {
  #page-header {
    grid-template-columns: 1fr;
    gap: 0.35rem;
    text-align: center;
  }

  .header-end,
  .header-link,
  .header-center {
    justify-self: center;
  }

  .poem-page {
    padding-top: 24vh;
  }

  .title-block,
  .plate-left,
  .plate-mid,
  .plate-right,
  .plate-wide {
    margin-left: auto;
    margin-right: auto;
  }

  .text-block,
  .image-block {
    max-width: min(92vw, 32rem);
  }

  .text-block p {
    font-size: clamp(0.92rem, 4vw, 1.04rem);
    line-height: 1.95;
  }

  .large-plate img,
  .plate-wide img,
  .surface img,
  .small-plate img,
  .circular-plate img,
  .portrait-plate img {
    width: 100%;
  }
}