:root {
    --primary-color: oklch(0.6 0.18 145);
    --secondary-color: oklch(0.7 0.15 200);
    --bg-color: oklch(0.95 0.01 200);
    --text-color: oklch(0.2 0.02 200);
    --card-bg: rgba(255, 255, 255, 0.8);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --glow: 0 0 15px oklch(0.6 0.18 145 / 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, oklch(0.8 0.1 200 / 0.2) 0, transparent 50%),
        radial-gradient(at 50% 0%, oklch(0.8 0.1 145 / 0.1) 0, transparent 50%),
        radial-gradient(at 100% 0%, oklch(0.8 0.1 260 / 0.2) 0, transparent 50%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    color: var(--text-color);
}

/* Subtle noise texture */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.02;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.container {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 24px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-align: center;
    max-width: 500px;
    width: 90%;
    transition: transform 0.3s ease;
}

.container:hover {
    transform: translateY(-5px);
}

h1 {
    font-size: 2rem;
    margin-bottom: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

#generate {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 16px;
    cursor: pointer;
    margin-bottom: 2.5rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--glow);
}

#generate:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px oklch(0.6 0.18 145 / 0.5);
}

#generate:active {
    transform: scale(0.98);
}

.numbers {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    min-height: 60px;
}

/* Lottery Ball Styles */
.number {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1), inset 0 -4px 10px rgba(0, 0, 0, 0.05);
    border: 3px solid var(--primary-color);
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
    position: relative;
    overflow: hidden;
}

.number::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 10px;
    width: 15px;
    height: 10px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    transform: rotate(-30deg);
}

@keyframes popIn {
    0% { transform: scale(0) rotate(-45deg); opacity: 0; }
    100% { transform: scale(1) rotate(0); opacity: 1; }
}

/* Staggered animation delay handled by JS */