:root {
    /* Dark Mode (Default) */
    --bg-color: #121212;
    --container-bg: #1e1e1e;
    --text-color: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --accent-color: #4CAF50;
    --ball-shadow: rgba(0, 0, 0, 0.4);
    --secondary-text: #b0b0b0;
    --input-bg: #2c2c2c;
    --input-border: #444444;
}

body.light-mode {
    --bg-color: #f5f5f5;
    --container-bg: #ffffff;
    --text-color: #333333;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --accent-color: #2e7d32;
    --ball-shadow: rgba(0, 0, 0, 0.2);
    --secondary-text: #666666;
    --input-bg: #f9f9f9;
    --input-border: #dddddd;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 2rem 0;
    text-align: center;
    transition: background-color 0.3s, color 0.3s;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
}

#theme-btn {
    background-color: var(--container-bg);
    border: 2px solid var(--accent-color);
    color: var(--text-color);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    transition: all 0.3s;
    box-shadow: 0 4px 10px var(--shadow-color);
}

#theme-btn:hover {
    transform: rotate(15deg) scale(1.1);
}

.container {
    padding: 2.5rem;
    border-radius: 20px;
    background-color: var(--container-bg);
    box-shadow: 0 15px 40px var(--shadow-color);
    max-width: 90%;
    width: 550px;
    transition: background-color 0.3s, box-shadow 0.3s;
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 2.5rem;
    text-shadow: 0 0 15px rgba(76, 175, 80, 0.3);
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.lotto-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.lotto-numbers-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.bonus-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.plus-sign {
    font-size: 2rem;
    font-weight: bold;
    color: var(--secondary-text);
}

lotto-ball {
    width: 60px;
    height: 60px;
    display: block;
}

#generate-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 18px 40px;
    font-size: 1.3rem;
    font-weight: bold;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

#generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(76, 175, 80, 0.5);
}

.divider {
    margin: 3rem 0;
    border: 0;
    border-top: 1px solid var(--input-border);
}

/* Contact Form Styles */
.contact-form {
    text-align: left;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--secondary-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 1rem;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 8px rgba(76, 175, 80, 0.2);
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-btn:hover {
    filter: brightness(1.1);
}

/* Responsive Design */
@media (max-width: 600px) {
    h1 {
        font-size: 1.8rem;
    }

    lotto-ball {
        width: 48px;
        height: 48px;
    }

    .container {
        padding: 1.5rem;
    }

    .plus-sign {
        font-size: 1.5rem;
    }
}