.test-container {
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 40px 20px;
}

.test-container > h1 {
    text-align: center; 
    color: #003C09; 
    font-size: 2.5rem;
}

.test-container > p {
    text-align: center; 
    color: #003C09; 
    font-size: 1.1rem; 
    margin-bottom: 40px;
}

.test-item-box {
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
    gap: 30px; 
    margin-top: 30px;
}

.test-item {
    background: #fff; 
    padding: 30px; 
    border-radius: 15px; 
    box-shadow: 0 5px 20px rgba(0,0,0,0.08); 
    border-top: 4px solid #4CAF50;
}

.test-item > h2 {
    text-align: center;
    color: #002807; 
    margin-top: 0;
}

.test-item > p {
    text-align: center;
    color: #003C09; 
    line-height: 1.6; 
    min-height: 80px;
}

.time-n-button {
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    margin-top: 10px;
    gap: 10px;
}

.time-n-button > span {
    color: #999; 
    font-size: 14px;
}

.time-n-button > button {
    font-weight: bold;
    padding: 10px 25px; 
    background: #003C09; 
    color: white; 
    border: none; 
    border-radius: 10px; 
    font-size: 15px; 
    cursor: pointer; 
    border: 1px solid #003C09;
    transition: background 0.3s;
}

.time-n-button > button:hover {
    background: white; 
    color: #003C09;
    border: 1px solid #003C09;
}

#annotation-line {
    text-align: left;
    color: #999; 
    margin-top: 40px; 
    font-size: 0.8em; 
    border-top: 1px solid #eee; 
    padding-top: 30px;
}