:root {
  color-scheme: dark;
  --bg: #111318;
  --panel: #1a1f27;
  --text: #f7f0e8;
  --muted: #b5bfcc;
  --accent: #ff4757;
  --accent-dark: #b92534;
  --accent-light: #ff7a84;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 15%, rgba(255, 71, 87, 0.14), transparent 28rem),
    linear-gradient(135deg, #111318 0%, #24222d 50%, #151b20 100%);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

.stage {
  position: relative;
  width: 100vw;
  height: 100vh;
  min-height: 32rem;
  padding: clamp(1.5rem, 4vw, 3rem);
  transform-origin: 50% 52%;
  transition: transform 520ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.stage.is-tilted {
  transform: rotate(-7deg) scale(1.03);
}

h1 {
  position: relative;
  z-index: 2;
  width: min(100%, 42rem);
  margin: 0 auto;
  color: var(--text);
  font-size: clamp(2rem, 5vw, 4.75rem);
  font-weight: 850;
  line-height: 1.05;
  text-align: center;
}

.message {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 5;
  margin: 0;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(17, 19, 24, 0.74);
  color: var(--accent-light);
  font-size: clamp(1.3rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.82);
  transition:
    opacity 260ms ease,
    transform 360ms cubic-bezier(0.18, 0.89, 0.32, 1.28);
  white-space: nowrap;
}

.message.is-visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.button-field {
  position: absolute;
  inset: 0;
  width: 100%;
}

.danger-button {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8.5rem;
  height: 3.25rem;
  border: 0;
  border-radius: 0.5rem;
  background: linear-gradient(180deg, var(--accent-light), var(--accent) 45%, var(--accent-dark));
  box-shadow:
    0 1rem 2rem rgba(0, 0, 0, 0.35),
    inset 0 0.08rem 0 rgba(255, 255, 255, 0.4),
    inset 0 -0.16rem 0 rgba(0, 0, 0, 0.24);
  color: white;
  cursor: pointer;
  font: inherit;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0;
  transform: translate(-50%, -50%);
  transition:
    left 360ms cubic-bezier(0.2, 0.8, 0.2, 1),
    top 360ms cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 160ms ease,
    filter 160ms ease;
}

.danger-button:hover {
  filter: brightness(1.07);
}

.danger-button:active {
  transform: translate(-50%, -50%) scale(0.96);
}

.danger-button.clone {
  animation: pop-in 340ms cubic-bezier(0.18, 0.89, 0.32, 1.28) both;
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.35) rotate(12deg);
  }

  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
  }
}

@media (max-width: 640px) {
  .stage {
    min-height: 100svh;
    padding: 1.25rem;
  }

  .button-field {
    min-height: auto;
  }

  .danger-button {
    width: 7.5rem;
    height: 3rem;
  }
}