:root {
  --bg-1: #0a0c10;
  --bg-2: #181f2c;
  --panel: rgba(8, 10, 14, 0.78);
  --text: #f6f7fb;
  --muted: #a6adbb;
  --accent: #ffdc64;
  --accent-2: #f04f37;
  --ring: rgba(255, 255, 255, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: "Avenir Next", "Montserrat", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 220, 100, 0.14), transparent 35%),
    radial-gradient(circle at 84% 0%, rgba(240, 79, 55, 0.18), transparent 32%),
    linear-gradient(145deg, var(--bg-1), var(--bg-2));
  padding: 20px;
}

.app {
  width: min(92vw, 620px);
  border: 1px solid var(--ring);
  border-radius: 24px;
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: 0 26px 90px rgba(0, 0, 0, 0.45);
  padding: clamp(20px, 2.6vw, 30px);
  text-align: center;
}

h1 {
  margin: 0;
  font-size: clamp(1.2rem, 2.3vw, 1.8rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 800;
}

.subtitle {
  margin: 8px 0 24px;
  color: var(--muted);
  letter-spacing: 0.03em;
  font-size: 0.94rem;
}

.wheel-shell {
  position: relative;
  width: min(84vw, 460px);
  margin: 0 auto;
  animation: rise-in 520ms ease-out both;
}

#canvas {
  width: 100%;
  height: auto;
  display: block;
}

.center-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: clamp(64px, 15vw, 92px);
  height: clamp(64px, 15vw, 92px);
  border-radius: 50%;
  background: #ffffff;
  border: 4px solid #0f1622;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35), 0 0 0 3px rgba(255, 255, 255, 0.24);
  z-index: 3;
  display: grid;
  place-items: center;
  overflow: hidden;
  pointer-events: none;
}

.center-logo img {
  width: 78%;
  height: 78%;
  object-fit: contain;
}

.logo-fallback {
  display: none;
  font-size: clamp(0.55rem, 1.6vw, 0.72rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #182333;
  text-transform: uppercase;
  text-align: center;
  padding: 0 8px;
}

.btn {
  margin-top: 26px;
  padding: 14px 52px;
  border: 0;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  color: #121212;
  background: linear-gradient(110deg, var(--accent), #fff1b8);
  box-shadow: 0 8px 30px rgba(255, 220, 100, 0.24);
  transition: transform 0.14s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 16px 34px rgba(255, 220, 100, 0.3);
  filter: saturate(1.06);
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
  transform: none;
  box-shadow: none;
  filter: grayscale(0.3);
}

.result {
  margin-top: 18px;
  min-height: 34px;
  font-size: clamp(1.02rem, 3vw, 1.34rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}