/* ================================================================
   AUCTION PAGE STYLESHEET (v2)
   ================================================================ */

.auction-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    padding: 3rem 0;
}

/* ----- Cột hình ảnh ----- */
.auction-image-container {
    position: relative;
    cursor: zoom-in;
    border-radius: 16px;
    overflow: hidden;
}
.auction-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.auction-image-container .zoom-icon {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: rgba(0,0,0,0.5);
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    font-size: 1.2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.auction-image-container:hover .zoom-icon {
    opacity: 1;
}
.auction-image-container.zoomed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    padding: 2rem;
    cursor: zoom-out;
}
.auction-image-container.zoomed img {
    width: auto;
    height: auto;
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

/* ----- Cột chi tiết ----- */
.auction-details {
    display: flex;
    flex-direction: column;
}
.nft-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.nft-description {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}
.nft-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-muted);
}
.collection-link {
    color: var(--secondary-blue);
    font-weight: 500;
}
.collection-link:hover {
    text-decoration: underline;
}

.auction-info-box {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: grid;
    /* THAY ĐỔI BẮT ĐẦU: Chuyển sang grid linh hoạt */
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    /* THAY ĐỔI KẾT THÚC */
    gap: 1.5rem;
}
.info-item .info-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}
.info-item .info-value {
    font-size: 1.2rem;
    font-weight: 600;
}
.info-item .price-highlight {
    color: var(--gold);
    font-size: 1.5rem;
}
.info-item .countdown {
    color: var(--pink);
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}
.btn-outline:hover {
    background-color: var(--btn-secondary-bg);
    border-color: var(--secondary-blue);
    color: var(--text-light);
}
.btn-outline.active {
    background-color: var(--secondary-blue);
    border-color: var(--secondary-blue);
    color: var(--text-light);
}

.bid-history {
    margin-bottom: 2rem;
}
.bid-history h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}
.bid-history-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.bid-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 1.5rem;
    align-items: center;
    padding: 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}
.bid-item.leading {
    border-color: var(--primary-purple);
    box-shadow: 0 0 15px rgba(143, 0, 255, 0.2);
}
.bid-item .bid-user {
    font-weight: 500;
}
.bid-item .bid-user .fa-crown {
    color: var(--gold);
    margin-right: 0.5rem;
}
.bid-item .bid-amount {
    font-weight: 600;
}
.bid-item .bid-time {
    font-size: 0.9rem;
    color: var(--text-muted);
}
.bid-item.new-bid {
    animation: newBidAnimation 0.7s ease-out;
}
@keyframes newBidAnimation {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}


.terms-box {
    font-size: 0.9rem;
    color: var(--text-muted);
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1rem;
}

/* ----- Modal ----- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1500;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.modal-overlay:not(.hidden) {
    opacity: 1;
}
.modal-content {
    background-color: #1a1a1a; /* Nền tối hơn một chút */
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    width: 90%;
    max-width: 500px;
    position: relative;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}
.modal-overlay:not(.hidden) .modal-content {
    transform: scale(1);
}
.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}
.modal-content h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    text-align: center;
}
.modal-content p {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 1rem;
}
.modal-content .form-group {
    margin-bottom: 1.5rem;
}

#bid-amount {
    width: 100% !important;
    padding: 1rem 1.25rem !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    background-color: var(--input-bg) !important;
    color: var(--text-light) !important;
    font-size: 1.1rem !important;
    font-family: 'Inter', sans-serif !important;
    transition: border-color 0.3s ease, box-shadow 0.3s ease !important;
    -webkit-appearance: none;
    margin: 0;
}

#bid-amount::-webkit-outer-spin-button,
#bid-amount::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

#bid-amount:focus {
    outline: none !important;
    border-color: var(--primary-purple) !important;
    box-shadow: 0 0 0 3px rgba(143, 0, 255, 0.3) !important;
}

.balance-warning {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(255, 215, 0, 0.1);
    border-left: 4px solid var(--gold);
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 4px;
    font-size: 0.9rem;
}
.balance-warning a {
    color: var(--secondary-blue);
    font-weight: 600;
}

@media (max-width: 992px) {
    .auction-layout {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 767px) {
    .nft-title {
        font-size: 1.8rem;
    }
    .bid-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        text-align: center;
    }
}