:root {
    --primary-color: #4a90e2;
    --background-color: #f0f2f5;
    --text-color: #333;
    --card-background: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    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");
}

.container {
    background-color: var(--card-background);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 25px var(--shadow-color);
    text-align: center;
    width: 100%;
    max-width: 500px;
    position: relative;
}

#theme-toggle {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    position: absolute;
    top: 20px;
    right: 20px;
}

h1 {
    color: var(--primary-color);
    margin-bottom: 25px;
}

#generate {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.4);
}

#generate:hover {
    background-color: #357ABD;
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
}

#result {
    margin-top: 30px;
    display: grid;
    gap: 15px;
}

.lotto-game {
    background-color: var(--background-color);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.lotto-number {
    font-size: 20px;
    font-weight: bold;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    background-color: #f39c12;
}

/* Color variations for numbers for a more vibrant look */
.lotto-number:nth-child(2n) { background-color: #e74c3c; }
.lotto-number:nth-child(3n) { background-color: #2ecc71; }
.lotto-number:nth-child(4n) { background-color: #3498db; }
.lotto-number:nth-child(5n) { background-color: #9b59b6; }
.lotto-number:nth-child(6n) { background-color: #1abc9c; }

body.dark-mode {
    --primary-color: #5da6f7;
    --background-color: #1a1a1a;
    --text-color: #f0f2f5;
    --card-background: #2c2c2c;
    --shadow-color: rgba(0, 0, 0, 0.4);
}

/* Form Styles */
form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

form label {
    align-self: flex-start;
    font-weight: bold;
    color: var(--text-color);
}

form input[type="text"],
form input[type="email"],
form textarea {
    width: calc(100% - 20px);
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    background-color: var(--background-color);
    color: var(--text-color);
}

form textarea {
    resize: vertical;
}

form button[type="submit"] {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.4);
}

form button[type="submit"]:hover {
    background-color: #357ABD;
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
}

/* Contact Link Button Style */
#contact-link {
    background-color: #6c757d; /* A different color for distinction */
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.4);
    margin-left: 10px; /* Space from generate button */
}

#contact-link:hover {
    background-color: #5a6268;
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.5);
}

/* Landing Page Styles */
.app-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.app-card {
    display: block;
    background-color: var(--background-color);
    padding: 20px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-color);
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid transparent;
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px var(--shadow-color);
    border-color: var(--primary-color);
}

.app-card .icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.app-card h2 {
    font-size: 20px;
    margin: 10px 0;
    color: var(--primary-color);
}

.app-card p {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.8;
}

/* Dinner Menu Styles */
.menu-display {
    margin: 30px 0;
    min-height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.menu-result {
    font-size: 32px;
    font-weight: bold;
    color: var(--text-color);
}

#recommend-dinner {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.4);
}

#recommend-dinner:hover {
    background-color: #357ABD;
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
}

/* Home Link */
.home-link {
    position: absolute;
    top: 20px;
    left: 20px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 5px;
}

.home-link:hover {
    color: var(--primary-color);
}

/* Footer Styles */
.site-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(0,0,0,0.1);
    font-size: 14px;
    color: var(--text-color);
}

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

.site-footer a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Content Section Styles (for rich text) */
.content-section {
    margin-top: 40px;
    text-align: left;
    line-height: 1.6;
    color: var(--text-color);
}

.content-section h2 {
    font-size: 20px;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--primary-color);
    border-bottom: 2px solid rgba(74, 144, 226, 0.2);
    padding-bottom: 5px;
    display: inline-block;
}

.content-section p, .content-section ul {
    margin-bottom: 15px;
}

.content-section ul {
    padding-left: 20px;
}

.content-section li {
    margin-bottom: 8px;
}

/* Text Content Page Styles (About, Privacy) */
.text-content {
    text-align: left;
    max-width: 800px; /* Wider for reading */
}

.text-content h1 {
    text-align: center;
}

.text-content h2 {
    margin-top: 30px;
    color: var(--primary-color);
}

.text-content p {
    line-height: 1.6;
    margin-bottom: 15px;
}