:root {
    /* Modern Colors using OKLCH */
    --bg-color: oklch(25% 0.05 150);
    --bg-gradient: linear-gradient(135deg, oklch(20% 0.04 160) 0%, oklch(35% 0.1 140) 100%);
    --container-bg: rgba(255, 255, 255, 0.03);
    --text-color: oklch(95% 0.01 150);
    --text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    --btn-bg: linear-gradient(to right, oklch(85% 0.1 145) 0%, oklch(95% 0.05 145) 100%);
    --btn-text: oklch(20% 0.05 150);
    --shadow-color: rgba(0, 0, 0, 0.4);
    --border-color: rgba(255, 255, 255, 0.08);
    --noise: 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");
}

[data-theme="light"] {
    --bg-color: oklch(95% 0.02 145);
    --bg-gradient: linear-gradient(135deg, oklch(98% 0.01 145) 0%, oklch(90% 0.05 145) 100%);
    --container-bg: rgba(255, 255, 255, 0.7);
    --text-color: oklch(25% 0.05 150);
    --text-shadow: none;
    --btn-bg: linear-gradient(to right, oklch(60% 0.15 145) 0%, oklch(75% 0.1 145) 100%);
    --btn-text: white;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --border-color: rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: var(--bg-color);
    background-image: var(--bg-gradient);
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: var(--noise);
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
}

.container {
    text-align: center;
    padding: 60px 40px;
    background-color: var(--container-bg);
    border-radius: 30px;
    box-shadow: 0 20px 50px var(--shadow-color);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    z-index: 2;
    max-width: 600px;
    width: 90%;
    margin: 40px 0;
}

h1 {
    color: var(--text-color);
    font-size: 2.8rem;
    margin-bottom: 40px;
    text-shadow: var(--text-shadow);
    transition: color 0.3s ease;
    letter-spacing: -0.02em;
}

#generate-btn {
    background-image: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    padding: 18px 40px;
    font-size: 1.3rem;
    font-weight: 700;
    border-radius: 100px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px var(--shadow-color);
    margin-bottom: 20px;
}

#generate-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 35px var(--shadow-color);
}

#generate-btn:active {
    transform: translateY(-1px);
}

lotto-numbers {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

theme-toggle {
    position: absolute;
    top: 30px;
    right: 30px;
}