:root {
    --bg-color: #0f172a; /* Slate 900 */
    --text-primary: #f8fafc; /* Slate 50 */
    --accent-color: #fb923c; /* Orange 400 - subtle reference */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: radial-gradient(circle at center, #1e293b 0%, var(--bg-color) 100%);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    overflow: hidden;
}

.container {
    padding: 2rem;
    max-width: 90vw;
}

.question {
    font-size: clamp(2rem, 5vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
    text-transform: uppercase;
    color: #cbd5e1; /* Slate 300 */
    line-height: 1.1;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.answer {
    font-size: clamp(10rem, 30vw, 25rem);
    font-weight: 900;
    line-height: 1;
    color: var(--accent-color);
    text-shadow: 0 0 50px rgba(251, 146, 60, 0.3), 0 0 100px rgba(251, 146, 60, 0.15);
    animation: pulse 4s infinite alternate ease-in-out;
}

/* Subtle fade-in animation on load */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slowly pulsating glow on the zero */
@keyframes pulse {
    0% {
        text-shadow: 0 0 40px rgba(251, 146, 60, 0.3), 0 0 80px rgba(251, 146, 60, 0.1);
        transform: scale(1);
    }
    100% {
        text-shadow: 0 0 60px rgba(251, 146, 60, 0.6), 0 0 120px rgba(251, 146, 60, 0.3);
        transform: scale(1.02);
    }
}