body {
    font-family: 'Helvetica Neue', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f0f2f5;
    background-image: subtle-noise-texture.png;
}

.container {
    text-align: center;
    background: #ffffff;
    padding: clamp(20px, 5vw, 40px);
    border-radius: 16px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1), 0 6px 6px rgba(0,0,0,0.15);
    width: 90%;
    max-width: 600px;
}

h1 {
    color: #333;
    font-size: clamp(2em, 8vw, 2.5em);
    margin-bottom: 30px;
}

#lotto-sets-container {
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.lotto-set {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 0;
    background-color: #f9f9f9;
    padding: 15px;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
}

.set-label {
    margin: 0;
    font-size: 1.2em;
    color: #555;
    font-weight: bold;
}

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

.number {
    width: clamp(40px, 12vw, 50px);
    height: clamp(40px, 12vw, 50px);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: clamp(1em, 3vw, 1.2em);
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.color-1-10    { background-color: #f44336; }
.color-11-20   { background-color: #ff9800; }
.color-21-30   { background-color: #4caf50; }
.color-31-40   { background-color: #2196f3; }
.color-41-45   { background-color: #9c27b0; }

button {
    background-color: #4CAF50;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 8px;
    border: none;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

button:hover {
    background-color: #45a049;
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.7);
}