:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: #eaf3fb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  min-height: 100vh;
  padding: 24px;
}

.stage {
  position: relative;
  width: min(92vw, 620px);
  aspect-ratio: 1 / 1;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(30, 50, 80, 0.18);
}

.stage__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.stage__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.start-button {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #fff;
  background: linear-gradient(135deg, #ff9a3c, #ff5f1f);
  box-shadow: 0 12px 28px rgba(255, 122, 24, 0.35);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.start-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 32px rgba(255, 122, 24, 0.4);
}

.start-button:active {
  transform: translateY(0);
}

.start-button[hidden] {
  display: none;
}

.status {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6b7a8f;
}