:root {
    --primary-color: #ff3c78;
    --secondary-color: #ff9a8b;
    --background-color: #f7f7f7;
    --card-bg: #fff;
    --text-color: #333;
    --history-item-bg: #eee;
    --white: #fff;
    --font-family: 'Montserrat', sans-serif;
}

[data-theme="dark"] {
    --background-color: #1a1a1a;
    --card-bg: #2d2d2d;
    --text-color: #f0f0f0;
    --history-item-bg: #3d3d3d;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%239C92AC' fill-opacity='0.1' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E%3C/svg%3E");
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    transition: background-color 0.3s ease;
}

#app {
    width: 95%;
    max-width: 500px;
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease;
    margin: 20px;
}

.controls {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-bottom: 20px;
}

.control-btn {
    background: var(--history-item-bg);
    color: var(--text-color);
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.control-btn:hover {
    filter: brightness(0.9);
}

.lotto-container {
    text-align: center;
}

#lotto-balls-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    min-height: 60px;
}

#generate-btn {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 60, 120, 0.4);
    font-weight: bold;
}

#generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 60, 120, 0.6);
}