/* ナビゲーション（about.cssから共通化） */
.nav {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 10px 20px;
    border: 2px solid #fff;
    border-radius: 5px;
    transition: all 0.3s ease;
    display: inline-block;
}

.nav-link:hover {
    background: #fff;
    color: #c00;
    transform: scale(1.05);
}

/* ウォレットセクション */
.wallet-section {
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 20px;
}

/* 接続ボタンセクション */
#wallet-connect-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.wallet-intro {
    font-size: 1.2rem;
    color: #fff;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.9);
    line-height: 1.8;
}

.connect-wallet-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    font-size: 1.3rem;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(135deg, #ab9ff2 0%, #7c3aed 50%, #5b21b6 100%);
    border: 3px solid rgba(255, 255, 255, 0.4);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    box-shadow:
        0 4px 15px rgba(124, 58, 237, 0.4),
        0 0 30px rgba(124, 58, 237, 0.2);
}

.connect-wallet-btn:hover {
    transform: scale(1.05);
    box-shadow:
        0 6px 25px rgba(124, 58, 237, 0.6),
        0 0 40px rgba(124, 58, 237, 0.4);
    border-color: rgba(255, 255, 255, 0.7);
}

.connect-wallet-btn .phantom-icon {
    width: 28px;
    height: 28px;
}

/* ============================================================
   ウォレット選択モーダル（RainbowKit風）
   ============================================================ */
#wallet-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.wallet-modal-content {
    background: linear-gradient(145deg, #1a1a2e 0%, #16132b 100%);
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    padding: 0;
    width: 380px;
    max-width: 90vw;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 40px rgba(124, 58, 237, 0.15);
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.wallet-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 24px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.wallet-modal-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #fff;
}

.wallet-modal-close {
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: rgba(255, 255, 255, 0.6);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.wallet-modal-close:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

#wallet-list {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.wallet-modal-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    text-align: left;
    color: #fff;
    font-family: inherit;
}

.wallet-modal-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(124, 58, 237, 0.4);
}

.wallet-modal-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
}

.wallet-modal-name {
    flex: 1;
    font-size: 1.05rem;
    font-weight: 600;
    color: #fff;
}

.wallet-modal-status {
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 500;
}

.wallet-modal-status.detected {
    background: rgba(0, 200, 83, 0.15);
    color: #4ade80;
    border: 1px solid rgba(0, 200, 83, 0.3);
}

.wallet-modal-status.not-installed {
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}


.wallet-modal-footer {
    padding: 16px 24px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}

.wallet-modal-footer-text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.5;
}

/* 接続済みセクション */
#wallet-connected-section {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(124, 58, 237, 0.5);
    border-radius: 20px;
    padding: 25px 35px;
    box-shadow: 0 0 25px rgba(124, 58, 237, 0.2);
}

.wallet-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.wallet-status {
    width: 12px;
    height: 12px;
    background: #00ff00;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(0, 255, 0, 0.6);
    animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.wallet-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

#wallet-address {
    font-size: 1.2rem;
    font-weight: bold;
    color: #ab9ff2;
    font-family: 'Courier New', monospace;
    text-shadow:
        0 0 10px rgba(171, 159, 242, 0.5),
        1px 1px 2px rgba(0, 0, 0, 0.8);
    cursor: pointer;
}

#wallet-address:hover {
    color: #c4b5fd;
}

.disconnect-btn {
    padding: 10px 25px;
    font-size: 0.95rem;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.disconnect-btn:hover {
    background: rgba(255, 0, 0, 0.3);
    border-color: rgba(255, 0, 0, 0.5);
    color: #fff;
}

/* NFTセクション */
#nft-section {
    display: none;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

.nft-section-title {
    font-size: 2rem;
    font-weight: bold;
    color: #fff;
    text-align: center;
    margin-bottom: 15px;
    text-shadow:
        0 0 10px rgba(255, 0, 0, 0.8),
        0 0 20px rgba(255, 0, 0, 0.6),
        2px 2px 4px rgba(0, 0, 0, 0.8);
}

/* NFT数表示 */
#nft-count {
    display: none;
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
    color: #00ff00;
    margin-bottom: 30px;
    text-shadow:
        0 0 10px rgba(0, 255, 0, 0.6),
        1px 1px 2px rgba(0, 0, 0, 0.8);
}

/* ローディング */
#nft-loading {
    display: none;
    text-align: center;
    padding: 60px 20px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid #ab9ff2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

/* 空メッセージ */
#nft-empty {
    display: none;
    text-align: center;
    padding: 60px 20px;
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    margin-bottom: 20px;
    line-height: 1.8;
}

.marketplace-cta {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
    background: rgba(255, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50px;
    transition: all 0.3s ease;
}

.marketplace-cta:hover {
    background: rgba(255, 0, 0, 0.5);
    border-color: #fff;
    transform: scale(1.05);
}

/* エラー表示 */
#nft-error {
    display: none;
    text-align: center;
    padding: 40px 20px;
    background: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.3);
    border-radius: 20px;
}

.error-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    color: #ff4444;
}

.error-message {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

/* NFTグリッド */
#nft-grid {
    display: none;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
    padding: 10px;
}

.nft-card {
    background: rgba(0, 0, 0, 0.7);
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.nft-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 0, 0, 0.6);
    box-shadow:
        0 8px 30px rgba(255, 0, 0, 0.4),
        0 0 40px rgba(255, 0, 0, 0.2);
}

.nft-image {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.5);
}

.nft-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.nft-card:hover .nft-image img {
    transform: scale(1.05);
}

.nft-name {
    padding: 15px;
    font-size: 1rem;
    font-weight: bold;
    color: #fff;
    text-align: center;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================================
   交換済み CNP RED° セクション
   ============================================================ */
#cnpred-section {
    display: none;
    max-width: 1100px;
    margin: 40px auto 0;
    padding: 20px;
    border-top: 2px solid rgba(255, 215, 0, 0.3);
}

.cnpred-section-title {
    text-shadow:
        0 0 10px rgba(255, 215, 0, 0.8),
        0 0 20px rgba(255, 215, 0, 0.6),
        2px 2px 4px rgba(0, 0, 0, 0.8) !important;
}

#cnpred-count {
    display: none;
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 30px;
    text-shadow:
        0 0 10px rgba(255, 215, 0, 0.6),
        1px 1px 2px rgba(0, 0, 0, 0.8);
}

#cnpred-empty {
    display: none;
    text-align: center;
    padding: 60px 20px;
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 215, 0, 0.2);
    border-radius: 20px;
}

#cnpred-empty .empty-icon {
    color: #ffd700;
}

#cnpred-grid {
    display: none;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
    padding: 10px;
}

.cnpred-card {
    border-color: rgba(255, 215, 0, 0.3) !important;
}

.cnpred-card:hover {
    border-color: rgba(255, 215, 0, 0.6) !important;
    box-shadow:
        0 8px 30px rgba(255, 215, 0, 0.4),
        0 0 40px rgba(255, 215, 0, 0.2) !important;
}

/* CTAセクション */
.cta-section {
    text-align: center;
    margin-top: 40px;
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-secondary {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50px;
    transition: all 0.3s ease;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: scale(1.05);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .connect-wallet-btn {
        padding: 15px 30px;
        font-size: 1.1rem;
    }

    .nft-section-title {
        font-size: 1.6rem;
    }

    #nft-grid,
    #cnpred-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }

    .cta-section {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .language-switcher {
        position: static;
        margin: 0 auto 20px;
        width: fit-content;
    }

    .lang-btn {
        padding: 5px 10px;
        font-size: 0.75rem;
    }

    .connect-wallet-btn {
        padding: 12px 25px;
        font-size: 1rem;
    }

    .wallet-intro {
        font-size: 1rem;
    }

    #wallet-connected-section {
        padding: 20px;
    }

    #wallet-address {
        font-size: 1rem;
    }

    .nft-section-title {
        font-size: 1.3rem;
    }

    #nft-grid,
    #cnpred-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
        gap: 12px;
    }

    .nft-name {
        padding: 10px;
        font-size: 0.9rem;
    }
}