:root {
  --bg: #121212;
  --card: #1e1e1e;
  --border: #2a2a2a;
  --text: #f2f2f2;
  --muted: #9a9a9a;
  --purple: #bb86fc;
  --cyan: #03dac6;
  --radius: 14px;
  --shadow-card: 0 10px 40px -10px rgba(0,0,0,0.6);
  --shadow-purple: 0 0 28px rgba(187,134,252,0.55), 0 0 60px rgba(187,134,252,0.25);
  --shadow-cyan: 0 0 28px rgba(3,218,198,0.55), 0 0 60px rgba(3,218,198,0.25);
}

* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; background: var(--bg); color: var(--text);
  font-family: 'Inter', sans-serif;
  background-image: radial-gradient(at 20% 0%, rgba(187,134,252,0.12) 0, transparent 50%), 
                    radial-gradient(at 80% 100%, rgba(3,218,198,0.10) 0, transparent 50%);
  background-attachment: fixed;
}

.container { max-width: 800px; margin: 0 auto; padding: 40px 20px; }
.hero { text-align: center; margin-bottom: 40px; }
.title {
  font-family: 'Space Grotesk', sans-serif; font-size: 3rem; font-weight: 700;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.card {
  background: linear-gradient(145deg, #212121 0%, #161616 100%);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow-card); margin-bottom: 20px;
}

.form { display: flex; flex-direction: column; gap: 10px; }
.form input {
  background: #161616; border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 15px; font-size: 1.2rem; outline: none;
}

.btn {
  border: 0; cursor: pointer; font-weight: 700; padding: 15px; border-radius: 10px;
  font-family: inherit; transition: 0.3s;
}
.btn-primary { background: var(--purple); color: #1a1a1a; margin-top: 10px; }
.btn-gradient { background: linear-gradient(135deg, var(--purple), var(--cyan)); color: #121212; margin-top: 20px; }
.btn-ghost { background: transparent; color: var(--muted); }

.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.choice {
  height: 70px; border-radius: 12px; border: 2px solid var(--border);
  background: transparent; color: var(--muted); font-weight: 800; cursor: pointer;
}
.choice.active.purple { border-color: var(--purple); color: var(--purple); box-shadow: var(--shadow-purple); background: rgba(187,134,252,0.1); }
.choice.active.cyan { border-color: var(--cyan); color: var(--cyan); box-shadow: var(--shadow-cyan); background: rgba(3,218,198,0.1); }

.scoreboard { display: flex; justify-content: space-between; align-items: center; }
.stats { display: flex; gap: 20px; }
.stat p { font-size: 1.5rem; font-weight: 700; margin: 5px 0 0; }

.number-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 20px 0; }
.tile { background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: 12px; padding: 15px; text-align: center; }
.tile p { font-size: 2.5rem; font-weight: 700; margin: 0; }

.hidden { display: none !important; }
.gradient-text { background: linear-gradient(135deg, var(--purple), var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }

@keyframes pop { from { opacity: 0; transform: scale(.8); } to { opacity: 1; transform: scale(1); } }