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

body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #73000a;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-bottom: 2rem;
}


header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

#countdown {
    font-size: 1.1rem;
    text-align: center;
    font-weight: bold;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.auction-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.auction-item {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.auction-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.auction-item h3 {
    color: #73000a;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.auction-item:nth-child(n+4) {
    background: #000000;
    color: white;
}

.auction-item:nth-child(n+4) h3 {
    color: #ffffff;
}

.auction-item:nth-child(n+4) p {
    color: #cccccc;
}

.auction-item p {
    margin-bottom: 0.5rem;
    color: #666;
}

.current-bid {
    font-size: 1.5rem;
    font-weight: bold;
    color: #73000a;
    margin: 1rem 0;
}

.auction-item:nth-child(n+4) .current-bid {
    color: #ffffff;
}

.bid-button {
    background-color: #73000a;
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    width: 100%;
    transition: background-color 0.3s ease;
}

.bid-button:hover {
    background-color: #5a0008;
}

.auction-item:nth-child(n+4) .bid-button {
    background-color: #ffffff;
    color: #000000;
}

.auction-item:nth-child(n+4) .bid-button:hover {
    background-color: #cccccc;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 1rem;
    top: 1rem;
}

.close:hover {
    color: #000;
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: #73000a;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #333;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: #73000a;
}

#bidForm button {
    background-color: #73000a;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1rem;
    width: 100%;
    margin-top: 1rem;
}

#bidForm button:hover {
    background-color: #5a0008;
}

@media (max-width: 768px) {
    .auction-grid {
        grid-template-columns: 1fr;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
}