:root {
    --bg-color: #f0f0f0;
    --text-color: #333;
    --container-bg: #fff;
    --button-bg: #4caf50;
    --button-text: white;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

[data-theme='dark'] {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --container-bg: #1e1e1e;
    --button-bg: #bb86fc;
    --button-text: #000;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    padding: 40px 0;
}

.container {
    text-align: center;
    background-color: var(--container-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: background-color 0.3s, box-shadow 0.3s;
    width: 90%;
    max-width: 500px;
}

#lotto-numbers-container {
    display: flex;
    gap: 10px;
    margin: 20px 0;
    justify-content: center;
    flex-wrap: wrap;
}

#generate-button {
    margin-top: 20px;
    padding: 12px 24px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    background-color: var(--button-bg);
    color: var(--button-text);
    transition: transform 0.1s, opacity 0.2s, background-color 0.3s;
}

#generate-button:active {
    transform: scale(0.95);
}

#generate-button:hover {
    opacity: 0.9;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--text-color);
    border-radius: 4px;
    background-color: var(--container-bg);
    color: var(--text-color);
    box-sizing: border-box;
    font-family: inherit;
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

#submit-button {
    width: 100%;
    padding: 12px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.2s;
}

#submit-button:hover {
    opacity: 0.9;
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
}

#theme-button {
    background: none;
    border: 2px solid var(--text-color);
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

#theme-button:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}