@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@700&display=swap');

:root {
    --bg-gradient: linear-gradient(45deg, #ff3b3b 0%, #ff9d3b 100%);
    --container-bg: rgba(26, 26, 26, 0.8);
    --text-color: #ffffff;
    --primary-color: #ff3b3b;
    --secondary-color: #ff9d3b;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --placeholder-bg: rgba(255, 255, 255, 0.1);
}

[data-theme="light"] {
    --bg-gradient: linear-gradient(45deg, #e0e0e0 0%, #ffffff 100%);
    --container-bg: rgba(255, 255, 255, 0.9);
    --text-color: #333333;
    --primary-color: #ff3b3b;
    --secondary-color: #ff9d3b;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --placeholder-bg: rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Poppins', sans-serif;
    background-image: var(--bg-gradient);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    overflow: hidden;
    transition: background-image 0.3s ease, color 0.3s ease;
}

.lotto-container {
    background-color: var(--container-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-color);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    transition: transform 0.2s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

h1 {
    margin-bottom: 30px;
    font-size: 2.5em;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.numbers-display {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.number-placeholder, .number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    font-weight: bold;
    color: #ffffff;
    background-color: var(--placeholder-bg);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

[data-theme="light"] .number-placeholder {
    color: #999;
}

.number {
    background-color: var(--primary-color);
    box-shadow: 0 0 20px var(--primary-color), 0 0 40px var(--primary-color);
    animation: appear 0.5s ease-in-out;
}

.bonus {
    background-color: var(--secondary-color);
    box-shadow: 0 0 20px var(--secondary-color), 0 0 40px var(--secondary-color);
}

#generate-btn {
    background-color: var(--primary-color);
    color: var(--text-color);
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 0 20px rgba(255, 59, 59, 0.7);
}

#generate-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 59, 59, 1);
}

@keyframes appear {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}