:root {
    --bg-color: #1a1a1a;
    --container-bg: #2c2c2c;
    --text-color: #fff;
    --border-color: #444;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --ball-bg: linear-gradient(145deg, #3a3a3a, #2a2a2a);
    --pattern-color: #111;
}

body.light-mode {
    --bg-color: #f0f2f5;
    --container-bg: #ffffff;
    --text-color: #333;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --ball-bg: linear-gradient(145deg, #ffffff, #e6e6e6);
    --pattern-color: #e0e0e0;
}

body {
    font-family: 'Helvetica Neue', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-color);
    background-image: linear-gradient(45deg, var(--pattern-color) 25%, transparent 25%),
                      linear-gradient(-45deg, var(--pattern-color) 25%, transparent 25%),
                      linear-gradient(45deg, transparent 75%, var(--pattern-color) 75%),
                      linear-gradient(-45deg, transparent 75%, var(--pattern-color) 75%);
    background-size: 20px 20px;
    margin: 0;
    transition: background-color 0.3s ease;
}

.container {
    text-align: center;
    background-color: var(--container-bg);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px var(--shadow-color), 
                0 5px 10px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    position: relative;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

#theme-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

h1 {
    margin-bottom: 2rem;
    color: var(--text-color);
    font-size: 2.5rem;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
    transition: color 0.3s ease;
}

.lotto-numbers {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.lotto-number {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--ball-bg);
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-color);
    box-shadow: 0 5px 15px var(--shadow-color), 
                inset 0 0 10px var(--shadow-color);
    transition: all 0.3s ease;
}

#generate-btn {
    padding: 1rem 2rem;
    font-size: 1.2rem;
    color: white;
    font-weight: bold;
    background: linear-gradient(145deg, #6a11cb, #2575fc);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(45, 117, 252, 0.4);
}

#generate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(45, 117, 252, 0.6);
}

#generate-btn:active {
    transform: translateY(1px);
    box-shadow: 0 3px 10px rgba(45, 117, 252, 0.4);
}

.partnership-section {
    margin-top: 3rem;
    padding-top: 1rem;
    text-align: left;
}

.partnership-section hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.partnership-section h3 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

#inquiry-form input, 
#inquiry-form textarea {
    width: 100%;
    padding: 0.8rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

#inquiry-form input:focus, 
#inquiry-form textarea:focus {
    outline: none;
    border-color: #2575fc;
    box-shadow: 0 0 5px rgba(37, 117, 252, 0.3);
}

#inquiry-form textarea {
    height: 100px;
    resize: vertical;
}

#submit-btn {
    width: 100%;
    padding: 0.8rem;
    background-color: transparent;
    border: 1px solid #2575fc;
    color: #2575fc;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

#submit-btn:hover {
    background-color: #2575fc;
    color: white;
}