:root {
  color-scheme: light;
  --size: min(88vw, 420px);
  --segment-a: #4f46e5;
  --segment-b: #22c55e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  display: grid;
  place-items: center;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(circle at top, #f8fafc, #e2e8f0);
  color: #0f172a;
}

.app {
  text-align: center;
  width: min(100%, 560px);
  padding: max(1rem, env(safe-area-inset-top)) 1rem max(1rem, env(safe-area-inset-bottom));
}

h1 {
  margin: 0;
}

.subtitle {
  margin-top: 0.4rem;
  margin-bottom: 1.4rem;
  color: #334155;
  font-size: clamp(0.95rem, 2.8vw, 1.05rem);
}

.wheel-wrap {
  position: relative;
  width: var(--size);
  height: var(--size);
  margin-inline: auto;
}

.pointer {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: clamp(10px, 2.6vw, 14px) solid transparent;
  border-right: clamp(10px, 2.6vw, 14px) solid transparent;
  border-top: clamp(20px, 5.6vw, 28px) solid #ef4444;
  z-index: 3;
  filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.2));
}

.wheel {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: clamp(4px, 1.2vw, 6px) solid #0f172a;
  cursor: pointer;
  padding: 0;
  outline: none;
  background:
    conic-gradient(
      from 0deg,
      var(--segment-a) 0deg 30deg,
      var(--segment-b) 30deg 60deg,
      var(--segment-a) 60deg 90deg,
      var(--segment-b) 90deg 120deg,
      var(--segment-a) 120deg 150deg,
      var(--segment-b) 150deg 180deg,
      var(--segment-a) 180deg 210deg,
      var(--segment-b) 210deg 240deg,
      var(--segment-a) 240deg 270deg,
      var(--segment-b) 270deg 300deg,
      var(--segment-a) 300deg 330deg,
      var(--segment-b) 330deg 360deg
    );
  transition: transform 4s cubic-bezier(0.2, 0.85, 0.15, 1);
  overflow: hidden;
}

.wheel::after {
  content: "";
  position: absolute;
  inset: 43.5%;
  border-radius: 50%;
  background: #0f172a;
  z-index: 2;
}

.wheel:disabled {
  cursor: not-allowed;
  filter: saturate(0.95);
}

.labels-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.label {
  position: absolute;
  transform: translate(-50%, -50%);
  color: white;
  font-weight: 700;
  font-size: clamp(0.8rem, 3.8vw, 1.1rem);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
  user-select: none;
  pointer-events: none;
}

.result {
  margin: 1rem auto 0;
  padding: 0.7rem 0.9rem;
  width: fit-content;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
  font-size: clamp(1rem, 4vw, 1.2rem);
  font-weight: 700;
}

@media (max-width: 380px) {
  .subtitle {
    margin-bottom: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .wheel {
    transition-duration: 0.01ms;
  }
}