:root {
  color-scheme: dark;
  --black: #020101;
  --black-red: #100102;
  --ruby: #d30b13;
  --ruby-deep: #5f0208;
  --ruby-hot: #ff3d25;
  --gold: #f6d98f;
  --cream: #fff4d7;
  --text: #f7e8c0;
  --ease: cubic-bezier(.19, 1, .22, 1);
  --tilt-x: 0deg;
  --tilt-y: 0deg;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  min-width: 280px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 42%, rgba(218, 9, 18, .3), transparent 31rem),
    radial-gradient(ellipse at 50% 118%, rgba(120, 1, 8, .48), transparent 32rem),
    linear-gradient(180deg, #030101 0%, var(--black-red) 52%, #040101 100%);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  touch-action: manipulation;
}

.app {
  position: relative;
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right))
    max(24px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
  isolation: isolate;
}

.app::before {
  position: fixed;
  inset: 0;
  z-index: -5;
  content: "";
  background-image:
    linear-gradient(rgba(255, 246, 215, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 246, 215, .014) 1px, transparent 1px);
  background-size: 5px 5px;
  opacity: .5;
  pointer-events: none;
}

.app::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background:
    radial-gradient(circle at 50% 50%, transparent 0 19rem, rgba(0, 0, 0, .55) 39rem, rgba(0, 0, 0, .86) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, .06), transparent 18%, transparent 72%, rgba(255, 245, 216, .035));
  pointer-events: none;
}

.cat-field,
.cat-field::before,
.cat-field::after {
  position: fixed;
  inset: -8vmax;
  pointer-events: none;
}

.cat-field {
  z-index: -4;
  overflow: hidden;
  opacity: .9;
}

.cat-field::before,
.cat-field::after {
  content: "";
  background-image: url("./assets/cat1.jpg");
  background-repeat: repeat;
  background-position: 0 0;
  mix-blend-mode: screen;
  will-change: opacity, transform;
}

.cat-field::before {
  background-size: clamp(132px, 17vw, 240px) clamp(132px, 17vw, 240px);
  opacity: .115;
  filter: sepia(.34) saturate(1.25) hue-rotate(-9deg) brightness(.9);
  transform: rotate(-4deg) translate3d(-2vmax, -2vmax, 0);
  animation: cat-drift-a 18s ease-in-out infinite;
}

.cat-field::after {
  background-size: clamp(196px, 25vw, 340px) clamp(196px, 25vw, 340px);
  background-position: 82px 58px;
  opacity: .07;
  filter: sepia(.5) saturate(1.5) hue-rotate(-15deg) blur(.25px);
  transform: rotate(5deg) translate3d(3vmax, 1vmax, 0);
  animation: cat-drift-b 23s ease-in-out 1.8s infinite;
}

.light-field {
  position: fixed;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  pointer-events: none;
}

.ray {
  position: absolute;
  left: 50%;
  bottom: 24%;
  width: 2px;
  height: 48svh;
  background: linear-gradient(180deg, transparent, rgba(255, 77, 48, .34), transparent);
  opacity: .34;
  transform-origin: 50% 100%;
  filter: blur(.2px);
}

.ray-one {
  transform: translateX(-50%) rotate(-31deg);
  animation: ray-pulse 9s ease-in-out infinite;
}

.ray-two {
  transform: translateX(-50%) rotate(0deg);
  animation: ray-pulse 10.5s ease-in-out .7s infinite;
}

.ray-three {
  transform: translateX(-50%) rotate(34deg);
  animation: ray-pulse 8.5s ease-in-out 1.2s infinite;
}

.shard {
  position: absolute;
  display: block;
  width: 54px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 240, 197, .42), transparent);
  opacity: .24;
  transform: rotate(var(--angle));
  animation: shard-glint 7s var(--ease) infinite;
}

.shard-one {
  --angle: -18deg;
  top: 24%;
  left: 14%;
}

.shard-two {
  --angle: 24deg;
  top: 69%;
  right: 12%;
  animation-delay: 1.7s;
}

.shard-three {
  --angle: 8deg;
  top: 14%;
  right: 18%;
  animation-delay: 3.1s;
}

.gem-button {
  position: relative;
  z-index: 2;
  display: grid;
  width: clamp(172px, 43vw, 292px);
  aspect-ratio: 1;
  place-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transform:
    perspective(760px)
    rotateX(var(--tilt-y))
    rotateY(var(--tilt-x))
    translate3d(0, 0, 0)
    scale(1);
  transform-style: preserve-3d;
  transition:
    transform 820ms var(--ease),
    filter 820ms var(--ease),
    opacity 820ms var(--ease);
}

.gem-button::before {
  position: absolute;
  inset: 16%;
  z-index: -1;
  content: "";
  background: radial-gradient(circle, rgba(255, 38, 24, .42), rgba(120, 3, 12, .22) 43%, transparent 70%);
  filter: blur(18px);
  opacity: .7;
  transform: translateZ(-30px);
  animation: aura-breathe 4200ms ease-in-out infinite;
}

.gem-button::after {
  position: absolute;
  inset: 12%;
  z-index: 2;
  content: "";
  background: linear-gradient(112deg, transparent 33%, rgba(255, 244, 212, .5) 47%, transparent 58%);
  border-radius: 999px;
  mix-blend-mode: screen;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-32%) rotate(-18deg);
}

.gem-button:focus-visible {
  outline: 1px solid color-mix(in srgb, var(--gold) 72%, transparent);
  outline-offset: 18px;
  border-radius: 999px;
}

.gem-button:active {
  transform:
    perspective(760px)
    rotateX(var(--tilt-y))
    rotateY(var(--tilt-x))
    translate3d(0, 2px, 0)
    scale(.985);
}

.gem-button:active .gem {
  filter:
    drop-shadow(0 0 24px rgba(255, 58, 36, .72))
    drop-shadow(0 0 76px rgba(209, 2, 14, .58));
}

.gem {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  filter:
    drop-shadow(0 0 20px rgba(255, 50, 30, .56))
    drop-shadow(0 0 68px rgba(189, 3, 12, .52));
  transform-origin: 50% 52%;
  animation: gem-breathe 3800ms ease-in-out infinite;
}

.gem-shadow {
  fill: rgba(0, 0, 0, .62);
  filter: blur(9px);
}

.rim {
  fill: #220004;
  stroke: #ff553d;
  stroke-width: 3;
}

.facet-line {
  fill: none;
  stroke: rgba(255, 228, 188, .32);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
  mix-blend-mode: screen;
}

.spark {
  fill: rgba(255, 251, 224, .7);
  filter: blur(.2px);
}

.pin {
  fill: var(--cream);
  opacity: .78;
}

.mantra {
  position: absolute;
  inset-inline: 18px;
  top: 50%;
  left: 50%;
  display: grid;
  width: min(88vw, 820px);
  gap: clamp(8px, 1.6svh, 18px);
  text-align: center;
  text-wrap: balance;
  text-shadow:
    0 2px 0 rgba(0, 0, 0, .9),
    0 0 28px rgba(214, 21, 20, .38);
  letter-spacing: 0;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, calc(-50% + 42px)) scale(.982);
  transition:
    opacity 680ms var(--ease) 180ms,
    transform 900ms var(--ease) 130ms;
}

.mantra-glow {
  position: absolute;
  inset: -16% 4%;
  z-index: -1;
  background:
    linear-gradient(90deg, transparent, rgba(255, 226, 178, .12), transparent),
    radial-gradient(ellipse at 50% 50%, rgba(218, 18, 19, .28), transparent 65%);
  filter: blur(22px);
  opacity: .72;
  transform: scaleX(.72);
}

.mantra p {
  margin: 0;
  color: var(--text);
  font-size: clamp(2.35rem, 9.4vw, 5.95rem);
  font-weight: 300;
  line-height: .96;
}

.mantra p:first-of-type {
  color: var(--cream);
  font-weight: 400;
}

.mantra p:nth-of-type(2) {
  color: color-mix(in srgb, var(--text) 88%, var(--ruby-hot));
  font-size: clamp(1.95rem, 7.4vw, 4.85rem);
}

.mantra p:last-of-type {
  margin-inline: auto;
  max-width: 13ch;
  color: color-mix(in srgb, var(--text) 92%, var(--gold));
  font-size: clamp(1.82rem, 6.35vw, 4.28rem);
}

.social-dock {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 6;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  max-width: min(92vw, 560px);
  pointer-events: none;
}

.social-dock a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 11px;
  border: 1px solid rgba(255, 229, 184, .2);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 240, 197, .12), rgba(80, 2, 8, .1)),
    rgba(8, 1, 2, .28);
  color: rgba(255, 244, 215, .72);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  text-shadow: 0 1px 0 rgba(0, 0, 0, .74);
  pointer-events: auto;
  transition:
    border-color 220ms ease,
    color 220ms ease,
    opacity 220ms ease,
    transform 220ms var(--ease);
}

.social-dock a:hover,
.social-dock a:focus-visible {
  border-color: rgba(255, 229, 184, .52);
  color: var(--cream);
  opacity: 1;
  transform: translateY(-1px);
}

.social-dock a:focus-visible {
  outline: 1px solid color-mix(in srgb, var(--gold) 72%, transparent);
  outline-offset: 4px;
}

.burst {
  position: fixed;
  z-index: 5;
  left: var(--x);
  top: var(--y);
  width: 2px;
  height: var(--length);
  background: linear-gradient(180deg, rgba(255, 245, 204, .95), rgba(255, 56, 38, .62), transparent);
  border-radius: 999px;
  pointer-events: none;
  transform: translate(-50%, -50%) rotate(var(--angle)) translateY(0) scaleY(.2);
  transform-origin: 50% 100%;
  animation: burst-out 760ms var(--ease) forwards;
}

.app.is-revealed .gem-button {
  opacity: .4;
  filter: blur(.2px) saturate(.95);
  transform:
    perspective(760px)
    rotateX(0deg)
    rotateY(0deg)
    translate3d(0, clamp(-360px, -34svh, -190px), 0)
    scale(.58);
}

.app.is-revealed .gem-button::before {
  opacity: .44;
}

.app.is-revealed .gem-button::after {
  animation: sweep 920ms var(--ease) both;
}

.app.is-revealed .gem {
  animation-duration: 5600ms;
}

.app.is-revealed .mantra {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.app.is-revealed .mantra p {
  animation: line-rise 960ms var(--ease) both;
}

.app.is-revealed .mantra p:nth-of-type(2) {
  animation-delay: 90ms;
}

.app.is-revealed .mantra p:nth-of-type(3) {
  animation-delay: 175ms;
}

.app.is-revealed::after {
  animation: chamber-flash 1100ms var(--ease) both;
}

@keyframes gem-breathe {
  0%,
  100% {
    transform: translateY(0) scale(1);
    filter: brightness(1) saturate(1);
  }
  50% {
    transform: translateY(-5px) scale(1.02);
    filter: brightness(1.16) saturate(1.16);
  }
}

@keyframes aura-breathe {
  0%,
  100% {
    opacity: .55;
    transform: translateZ(-30px) scale(.9);
  }
  50% {
    opacity: .88;
    transform: translateZ(-30px) scale(1.08);
  }
}

@keyframes line-rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes burst-out {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(8px) scaleY(.18);
  }
  22% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(var(--distance)) scaleY(1);
  }
}

@keyframes sweep {
  0% {
    opacity: 0;
    transform: translateX(-46%) rotate(-18deg);
  }
  18%,
  58% {
    opacity: .9;
  }
  100% {
    opacity: 0;
    transform: translateX(42%) rotate(-18deg);
  }
}

@keyframes chamber-flash {
  0%,
  100% {
    opacity: 1;
  }
  16% {
    opacity: .76;
  }
}

@keyframes ray-pulse {
  0%,
  100% {
    opacity: .14;
    height: 42svh;
  }
  45% {
    opacity: .42;
    height: 54svh;
  }
}

@keyframes shard-glint {
  0%,
  100% {
    opacity: .12;
    transform: rotate(var(--angle)) translateX(-12px);
  }
  48% {
    opacity: .46;
    transform: rotate(var(--angle)) translateX(18px);
  }
}

@keyframes cat-drift-a {
  0%,
  100% {
    opacity: .055;
    transform: rotate(-4deg) translate3d(-2vmax, -2vmax, 0) scale(1);
  }
  48% {
    opacity: .15;
    transform: rotate(-4deg) translate3d(1.4vmax, .7vmax, 0) scale(1.015);
  }
}

@keyframes cat-drift-b {
  0%,
  100% {
    opacity: .035;
    transform: rotate(5deg) translate3d(3vmax, 1vmax, 0) scale(1);
  }
  54% {
    opacity: .1;
    transform: rotate(5deg) translate3d(-1vmax, -1.5vmax, 0) scale(1.02);
  }
}

@media (max-width: 520px) {
  .gem-button {
    width: clamp(164px, 58vw, 244px);
  }

  .mantra {
    width: min(90vw, 420px);
  }

  .social-dock {
    right: 50%;
    justify-content: center;
    transform: translateX(50%);
  }

  .social-dock a {
    min-height: 32px;
    padding-inline: 10px;
    font-size: .66rem;
  }
}

@media (max-height: 580px) {
  .gem-button {
    width: clamp(132px, 34vw, 198px);
  }

  .app.is-revealed .gem-button {
    transform:
      perspective(760px)
      translate3d(0, clamp(-220px, -35svh, -150px), 0)
      scale(.5);
  }

  .mantra {
    gap: 4px;
  }

  .mantra p {
    font-size: clamp(1.62rem, 10svh, 3.65rem);
  }

  .mantra p:nth-of-type(2) {
    font-size: clamp(1.38rem, 8.4svh, 3rem);
  }

  .mantra p:last-of-type {
    font-size: clamp(1.2rem, 7.2svh, 2.5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }

  .cat-field::before {
    opacity: .105;
  }

  .cat-field::after {
    opacity: .055;
  }
}