:root {
    --background-color: #f0f2f5;
    --card-background-color: #ffffff;
    --text-color: #333333;
    --primary-color: #007bff;
    --primary-hover-color: #0056b3;
    --number-bg-color: #e9ecef;
    --input-border-color: #ced4da;
    --input-focus-border-color: #80bdff;
    --noise-opacity: 0.05;
    --success-color: #28a745;
    --error-color: #dc3545;
}

[data-theme="dark"] {
    --background-color: #1a1a1a;
    --card-background-color: #2c2c2c;
    --text-color: #f0f2f5;
    --primary-color: #4dabf7;
    --primary-hover-color: #1c7ed6;
    --number-bg-color: #444444;
    --input-border-color: #555;
    --input-focus-border-color: #4dabf7;
    --noise-opacity: 0.02;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Align to the top */
    min-height: 100vh;
    margin: 0;
    padding-top: 2rem;
    transition: background-color 0.3s, color 0.3s;
    position: relative;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml,...');
    opacity: var(--noise-opacity);
    pointer-events: none;
    z-index: -1;
}

.container {
    width: 90%;
    max-width: 500px;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

/* Theme Switch Styles */
.theme-switch-wrapper { display: flex; align-items: center; }
.theme-switch { position: relative; display: inline-block; width: 50px; height: 25px; }
.theme-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; border-radius: 25px; }
.slider:before { position: absolute; content: ""; height: 19px; width: 19px; left: 3px; bottom: 3px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--primary-color); }
input:checked + .slider:before { transform: translateX(25px); }

/* Card Styles */
.lotto-card, .history-card, .contact-card, .comments-card {
    background-color: var(--card-background-color);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05), 0 6px 6px rgba(0,0,0,0.07);
    transition: background-color 0.3s, box-shadow 0.3s;
}

/* Lotto Card specific */
.lotto-numbers { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 2rem; }
.number { background-color: var(--number-bg-color); border-radius: 50%; width: 50px; height: 50px; display: flex; justify-content: center; align-items: center; font-size: 1.5rem; font-weight: 600; color: var(--text-color); transition: all 0.3s; animation: fadeIn 0.5s forwards; opacity: 0; }
@keyframes fadeIn { to { opacity: 1; } }

#generate-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s, transform 0.2s, box-shadow 0.3s;
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.2);
}
#generate-btn:hover { background-color: var(--primary-hover-color); transform: translateY(-2px); box-shadow: 0 6px 15px rgba(0, 123, 255, 0.3); }

/* History Card specific */
.history-card h2 { margin-top: 0; margin-bottom: 1rem; font-size: 1.5rem; }
#history-list { list-style: none; padding: 0; margin: 0; max-height: 150px; overflow-y: auto; }
#history-list li { padding: 0.75rem 0; border-bottom: 1px solid var(--number-bg-color); font-size: 1rem; }
#history-list li:last-child { border-bottom: none; }

/* Contact Form Styles */
.contact-card h2, .comments-card h2 {
     margin-top: 0; margin-bottom: 1rem; font-size: 1.5rem; 
}
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--input-border-color);
    border-radius: 8px;
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--input-focus-border-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}
.contact-card button {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}
.contact-card button:hover { background-color: var(--primary-hover-color); }

#form-status {
    margin-top: 1rem;
    text-align: center;
    font-weight: 600;
}
#form-status.success { color: var(--success-color); }
#form-status.error { color: var(--error-color); }

/* Comments Card specific */
#disqus_thread {
    margin-top: 1rem;
}