/* TRANSPOSERS — biomech chrome × Nagel flat colour × '81 Bowery xerox.
   Two sides of one card: light (glam) and dark (grime). */

:root {
  --ink: #0b0b0b;
  --void: #0a0c0b;
  --cream: #f3ede2;
  --paper: #efe9dc;
  --pink: #e3127a;
  --teal: #13a3a6;
  --blood: #d0103a;
  --chrome: #c9d1c7;
  --gold: #c9a24a;
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Special Elite", "Courier New", monospace;
  overflow-x: hidden;
  transition: background-color .9s ease, color .9s ease;
}

body[data-side="light"] {
  color-scheme: light;
  background:
    radial-gradient(ellipse at 15% 10%, rgba(169, 216, 234, .55), transparent 55%),
    radial-gradient(ellipse at 90% 90%, rgba(247, 179, 207, .5), transparent 55%),
    var(--cream);
  color: var(--ink);
}

body[data-side="dark"] {
  color-scheme: dark;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(111, 125, 88, .35), transparent 60%),
    radial-gradient(ellipse at 50% 120%, rgba(227, 18, 122, .18), transparent 55%),
    var(--void);
  color: var(--paper);
}

/* photocopier grain over everything */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: var(--grain);
  opacity: .35;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 10;
}

body[data-side="light"]::after { opacity: .18; mix-blend-mode: multiply; }

.defs { position: absolute; width: 0; height: 0; }

/* ribbed walls: vertebral ridges down both edges */
.ribs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(201, 209, 199, .10) 0 2px,
    rgba(0, 0, 0, .55) 2px 7px,
    rgba(201, 209, 199, .05) 7px 12px
  );
  -webkit-mask-image: linear-gradient(90deg, #000 0 9%, transparent 22% 78%, #000 91%);
  mask-image: linear-gradient(90deg, #000 0 9%, transparent 22% 78%, #000 91%);
  transition: opacity .9s ease;
}

body[data-side="light"] .ribs {
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, .9) 0 2px,
    rgba(143, 129, 114, .22) 2px 7px,
    rgba(255, 255, 255, .4) 7px 12px
  );
}

.flyer {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(24px, 5vw, 56px) 16px 96px;
}

/* ---------- the flip ---------- */

.card {
  display: grid;
  transform-style: preserve-3d;
  transform: perspective(2400px) rotateY(0deg);
  transition: transform 1.1s cubic-bezier(.7, 0, .25, 1);
}

body[data-side="dark"] .card { transform: perspective(2400px) rotateY(180deg); }

.face {
  grid-area: 1 / 1;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.face--dark { transform: rotateY(180deg); }

/* per-side palette */
.face--light {
  --fg: var(--ink);
  --muted: #5d5466;
  --accent: var(--pink);
  --stamp: var(--pink);
  --stamp-blend: multiply;
  --sheen: linear-gradient(180deg, #fff6d2 0%, #e2b955 46%, #7a5413 52%, #f6d77a 100%);
  --sheen-edge: rgba(80, 55, 10, .55);
  --shadow: rgba(60, 40, 70, .35);
}

.face--dark {
  --fg: var(--paper);
  --muted: var(--chrome);
  --accent: var(--pink);
  --stamp: var(--blood);
  --stamp-blend: screen;
  --sheen: linear-gradient(180deg, #f2f5ee 0%, #9aa79e 48%, #1d2420 52%, #c9d1c7 100%);
  --sheen-edge: rgba(255, 255, 255, .25);
  --shadow: rgba(0, 0, 0, .7);
}

.flip {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: .4em;
  padding: .55em 1em .5em;
  border: 2px solid currentColor;
  background: var(--ink);
  color: var(--cream);
  font: 400 18px/1 "Rubik Mono One", sans-serif;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  transform: rotate(-4deg);
  box-shadow: 4px 5px 0 var(--pink);
  transition: transform .2s ease, background-color .9s ease, color .9s ease;
}

.flip:hover { transform: rotate(-4deg) scale(1.06); }
.flip:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
.flip__icon { font-family: system-ui, sans-serif; font-size: 1.25em; }

body[data-side="dark"] .flip { background: var(--cream); color: var(--ink); }

/* ---------- masthead: ransom-note cut-ups ---------- */

.ransom {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  gap: clamp(1px, .5vw, 6px);
  margin: 0;
  line-height: 1;
  font-weight: 400;
}

.l {
  display: inline-block;
  padding: .06em .12em .02em;
  font-size: clamp(22px, 7vw, 92px);
  box-shadow: 3px 4px 0 var(--shadow);
  filter: url(#rough);
}

.l1  { font-family: "Anton", sans-serif;          background: var(--paper); color: var(--ink);  transform: rotate(-4deg); }
.l2  { font-family: "Abril Fatface", serif;       background: var(--pink);  color: var(--ink);  transform: rotate(3deg) translateY(6px); }
.l3  { font-family: "Rubik Mono One", sans-serif; background: var(--ink);   color: var(--paper); transform: rotate(-2deg); font-size: clamp(18px, 5.6vw, 72px); outline: 2px solid var(--paper); }
.l4  { font-family: "Limelight", serif;           background: var(--teal);  color: var(--ink);  transform: rotate(5deg) translateY(-4px); }
.l5  { font-family: "Special Elite", monospace;   background: #f6e04b;      color: var(--ink);  transform: rotate(-6deg) translateY(4px); }
.l6  { font-family: "Anton", sans-serif;          background: var(--blood); color: var(--paper); transform: rotate(2deg); }
.l7  { font-family: "Abril Fatface", serif;       background: var(--chrome); color: var(--ink); transform: rotate(-3deg) translateY(-6px); border-radius: 50%; padding-inline: .2em; }
.l8  { font-family: "Rubik Mono One", sans-serif; background: var(--paper); color: var(--pink); transform: rotate(4deg); font-size: clamp(18px, 5.6vw, 72px); }
.l9  { font-family: "Limelight", serif;           background: var(--ink);   color: var(--teal); transform: rotate(-5deg) translateY(5px); outline: 2px dashed var(--teal); }
.l10 { font-family: "Special Elite", monospace;   background: var(--pink);  color: var(--paper); transform: rotate(3deg); }
.l11 { font-family: "Anton", sans-serif;          background: var(--paper); color: var(--blood); transform: rotate(-2deg) translateY(-3px); }

.face--light .l1,
.face--light .l8,
.face--light .l11 { outline: 1px solid rgba(0, 0, 0, .25); }

/* ---------- stage ---------- */

.stage {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  margin-top: clamp(32px, 6vw, 64px);
}

.portrait {
  position: relative;
  margin: 0;
  transform: rotate(-1.5deg);
  border: 10px solid var(--paper);
  border-bottom-width: 36px;
  box-shadow: 0 0 0 2px var(--ink), 14px 18px 0 var(--shadow);
  background: var(--paper);
}

.face--light .portrait { transform: rotate(1.5deg); border-color: #fffdf8; }

.portrait img { display: block; width: 100%; height: auto; }

/* tape */
.portrait::after {
  content: "";
  position: absolute;
  top: -22px;
  left: 50%;
  width: 120px;
  height: 34px;
  transform: translateX(-50%) rotate(3deg);
  background: rgba(239, 233, 220, .55);
  border-left: 2px dashed rgba(0, 0, 0, .15);
  border-right: 2px dashed rgba(0, 0, 0, .15);
}

.face--light .portrait::after { background: rgba(247, 179, 207, .6); transform: translateX(-50%) rotate(-4deg); }

.copy { text-align: left; }

.strip {
  display: inline-block;
  margin: 0;
  padding: .35em .8em .3em;
  background: var(--paper);
  color: var(--ink);
  font-size: clamp(16px, 2.3vw, 24px);
  text-transform: uppercase;
  letter-spacing: .08em;
  transform: rotate(-1.5deg);
  clip-path: polygon(0 6%, 4% 0, 12% 8%, 22% 1%, 35% 7%, 49% 0, 61% 6%, 74% 1%, 86% 8%, 96% 0, 100% 9%, 99% 92%, 91% 100%, 79% 93%, 66% 100%, 52% 94%, 40% 100%, 27% 92%, 15% 99%, 5% 93%, 0 100%);
}

.face--light .strip { background: var(--ink); color: var(--cream); }

.strip--alt,
.face--light .strip--alt {
  background: var(--pink);
  color: var(--ink);
  transform: rotate(1.2deg);
  font-family: "Rubik Mono One", sans-serif;
  font-size: clamp(18px, 2.8vw, 30px);
}

/* Nagel deco lettering, warped */
.bends {
  margin: 14px 0;
  font-family: "Limelight", serif;
  font-size: clamp(30px, 5.2vw, 64px);
  line-height: .95;
  text-transform: uppercase;
}

.bends span { display: table; }

.b1 {
  color: transparent;
  background: var(--sheen);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-stroke: 1px var(--sheen-edge);
  transform: skewX(-8deg);
}

.b2 {
  color: var(--teal);
  text-shadow: 3px 3px 0 var(--pink), 6px 6px 0 var(--ink);
  transform: skewX(8deg) translateX(.4em);
}

/* ---------- COMING SOON stamp ---------- */

.soon {
  display: inline-flex;
  flex-direction: column;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: .18em .35em .1em;
  border: 6px solid var(--stamp);
  outline: 2px solid var(--stamp);
  outline-offset: 5px;
  color: var(--stamp);
  font-family: "Anton", sans-serif;
  font-size: clamp(56px, 11vw, 132px);
  line-height: .9;
  text-transform: uppercase;
  letter-spacing: .02em;
  transform: rotate(-7deg);
  filter: url(#rough);
  mix-blend-mode: var(--stamp-blend);
  animation: flicker 6s steps(1) infinite;
}

.face--light .soon { transform: rotate(6deg); }

.soon span:last-child { letter-spacing: .14em; padding-left: .08em; }

@keyframes flicker {
  0%, 100% { opacity: 1; }
  41% { opacity: .55; }
  42% { opacity: 1; }
  43% { opacity: .3; }
  44% { opacity: 1; }
  77% { opacity: .75; }
  78% { opacity: 1; }
}

.manifesto {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  font-size: clamp(14px, 1.8vw, 18px);
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--muted);
}

.manifesto li::before {
  content: "✕";
  margin-right: 10px;
  color: var(--accent);
}

.face--light .manifesto li::before { content: "✦"; }

/* ---------- footer ---------- */

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: clamp(40px, 7vw, 80px);
  padding-top: 16px;
  border-top: 1px dashed currentColor;
  font-size: 13px;
  letter-spacing: .2em;
  text-transform: uppercase;
  opacity: .7;
}

.foot p { margin: 0; }

/* ---------- small screens ---------- */

@media (max-width: 760px) {
  .stage { grid-template-columns: 1fr; }
  .portrait { max-width: 420px; width: 100%; margin: 0 auto; }
  .copy { text-align: center; }
  .bends span { margin-inline: auto; }
  .b2 { transform: skewX(8deg); }
  .soon { transform: rotate(-5deg); }
  .face--light .soon { transform: rotate(5deg); }
  .manifesto { justify-content: center; }
  .foot { justify-content: center; text-align: center; }
  .flip {
    position: relative;
    right: auto;
    bottom: auto;
    display: flex;
    width: fit-content;
    margin: 40px auto 0;
    font-size: 16px;
  }
  .flyer { padding-bottom: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .soon { animation: none; }
  .card { transition: none; }
}