@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

:root {
    /* Light Theme */
    --background-color: oklch(95% 0.05 240);
    --text-color: oklch(20% 0.05 240);
    --primary-color: oklch(65% 0.2 260);
    --container-bg: oklch(100% 0 0); /* white */
    --button-shadow: rgba(0,0,0,0.1);
}

body.dark-mode {
    /* Dark Theme */
    --background-color: oklch(20% 0.05 240);
    --text-color: oklch(95% 0.05 240);
    --primary-color: oklch(65% 0.2 260);
    --container-bg: oklch(25% 0.05 240);
    --button-shadow: rgba(0,0,0,0.5);
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-image: linear-gradient(rgba(0,0,0,0.2), rgba(0,0,0,0.2)), url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" width="32" height="32" fill="none" stroke="%23333"%3E%3Cpath d="M0 .5H31.5V32"/%3E%3C/svg%3E');
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    background-color: var(--container-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 
        0 4px 8px var(--button-shadow),
        0 8px 16px var(--button-shadow),
        0 16px 32px var(--button-shadow);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

h1 {
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 2.5rem;
}

.theme-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.theme-buttons button {
    background-color: var(--primary-color);
    color: var(--text-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 8px var(--primary-color);
}

.theme-buttons button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--button-shadow), 0 0 15px var(--primary-color);
}

.lotto-numbers {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.lotto-numbers span {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    box-shadow: 0 0 10px var(--primary-color), 0 0 20px var(--primary-color);
}

#generate-btn {
    background-color: var(--primary-color);
    color: var(--text-color);
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px var(--primary-color);
}

#generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--button-shadow), 0 0 20px var(--primary-color);
}