* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f7f7f7;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #2b6cb0;
}

h2, h3 {
    margin-bottom: 1rem;
    color: #3182ce;
}

.counter-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f0f9ff;
    border-radius: 6px;
}

.counter-display {
    font-size: 3rem;
    font-weight: bold;
    margin: 1rem 0;
    padding: 0.5rem 2rem;
    background-color: #fff;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    min-width: 150px;
    text-align: center;
}

.counter-controls {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
}

button {
    font-size: 1.5rem;
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: 4px;
    background-color: #3182ce;
    color: white;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #2b6cb0;
}

button:active {
    transform: translateY(1px);
}

.counter-status {
    min-height: 1.5rem;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #718096;
}

.info-section {
    padding: 1.5rem;
    background-color: #f7fafc;
    border-left: 4px solid #3182ce;
    border-radius: 4px;
}

@media (max-width: 600px) {
    .container {
        margin: 1rem;
    }
    
    .counter-display {
        font-size: 2.5rem;
    }
}