:root {
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #add8e6;
  color: #111;
}

.app {
  width: min(92vw, 860px);
  padding: 1.5rem;
}

.screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

h1,
h2 {
  margin: 0;
  color: #000;
}

.cat-wrap {
  width: 240px;
  height: 210px;
  display: grid;
  place-items: center;
  perspective: 800px;
}

.cat {
  --cat-color: #9a9a9a;
  position: relative;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffffff77, transparent 35%), var(--cat-color);
  border: 2px solid #4444;
  transform: rotateX(8deg) rotateY(-10deg);
  box-shadow: 0 14px 16px #00000033;
}

.ear {
  position: absolute;
  top: -26px;
  width: 0;
  height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-bottom: 40px solid var(--cat-color);
  filter: drop-shadow(0 2px 0 #00000033);
}

.ear-left {
  left: 24px;
}

.ear-right {
  right: 24px;
}

.eye {
  position: absolute;
  top: 58px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #000;
}

.eye-left {
  left: 44px;
}

.eye-right {
  right: 44px;
}

.palette {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
}

.color-btn,
.start-btn {
  border: 2px solid #00000040;
  border-radius: 10px;
  padding: 0.55rem 0.9rem;
  min-width: 100px;
  font-weight: 700;
  cursor: pointer;
}

.brown {
  background: #8b5a2b;
  color: #fff;
}

.orange {
  background: #ff9800;
  color: #000;
}

.grey {
  background: #808080;
  color: #fff;
}

.white {
  background: #fff;
  color: #000;
}

.black {
  background: #000;
  color: #fff;
}

.start-btn {
  margin-top: 0.25rem;
  background: #1ca64b;
  color: #fff;
  min-width: 160px;
  text-transform: lowercase;
}

.room-screen {
  width: 100%;
}

.room {
  position: relative;
  width: min(90vw, 700px);
  height: 360px;
  border-radius: 14px;
  overflow: hidden;
  perspective: 900px;
  border: 2px solid #00000020;
}

.room-wall {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #f0f0f0, #d7d7d7 68%, #b4b4b4 100%);
}

.room-floor {
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -110px;
  height: 230px;
  background: linear-gradient(180deg, #8e6e53, #66462f);
  transform: rotateX(70deg);
  transform-origin: bottom center;
}

.room-cat {
  position: absolute;
  left: 50%;
  bottom: 52px;
  transform: translateX(-50%) rotateX(8deg) rotateY(-10deg);
}

.hidden {
  display: none;
}