:root {
    --primary-color: #f0f0f0;
    --secondary-color: #333;
    --accent-color: #ff7f50;
    --background-color: #fdfdfd;
    --container-bg: #f0f0f0;
    --text-color: #333;
}

[data-theme="dark"] {
    --primary-color: #1a1a1a;
    --secondary-color: #f0f0f0;
    --accent-color: #ff7f50;
    --background-color: #121212;
    --container-bg: #2d2d2d;
    --text-color: #f0f0f0;
}

body {
    font-family: 'Helvetica Neue', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.lotto-container {
    text-align: center;
    background-color: var(--container-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1), 0 6px 6px rgba(0,0,0,0.15);
    transition: transform 0.3s ease, background-color 0.3s;
}

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

h1 {
    color: var(--secondary-color);
    margin-bottom: 30px;
    font-size: 2.5rem;
    font-weight: 300;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: none;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--accent-color);
    color: white;
}

.number-placeholder, .number {
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    transition: background-color 0.3s, transform 0.3s;
}

.number-placeholder {
    background-color: #ccc;
}

.number {
    background-color: var(--accent-color);
    transform: scale(1.1);
    box-shadow: 0 0 15px var(--accent-color);
}

#generate-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s, transform 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

#generate-btn:hover {
    background-color: #ff6347;
    box-shadow: 0 0 20px #ff6347, 0 0 30px #ff6347;
    transform: translateY(-3px);
}

.contact-section {
    margin-top: 40px;
}

.contact-section hr {
    border: 0;
    height: 1px;
    background: #ccc;
    margin: 30px 0;
}

.contact-section h2 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.content-section {
    margin-top: 40px;
    text-align: left;
}

.info-card {
    background-color: var(--background-color);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border: 1px solid rgba(0,0,0,0.05);
}

.info-card h3 {
    color: var(--accent-color);
    margin-top: 0;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.info-card p {
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

.site-footer {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
    font-size: 0.9rem;
    color: #888;
}

.footer-links {
    margin-top: 10px;
}

.footer-links a {
    color: var(--accent-color);
    text-decoration: none;
    margin: 0 10px;
}

.footer-links a:hover {
    text-decoration: underline;
}

.form-group {
    margin-bottom: 15px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #ddd;
    background-color: var(--background-color);
    color: var(--text-color);
    box-sizing: border-box;
    font-size: 1rem;
}

.form-group textarea {
    height: 100px;
    resize: none;
}

.submit-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #ff6347;
}

@media (max-width: 600px) {
    .lotto-container {
        padding: 20px;
    }

    h1 {
        font-size: 2rem;
    }

    .number-placeholder, .number {
        width: 45px;
        height: 45px;
        font-size: 1.5rem;
    }

    #generate-btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
}