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

      body {
        font-family: var(--sans);
        background: var(--bg);
        color: var(--text);
        min-height: 100vh;
        line-height: 1.5;
      }

      /* Layout */
      .app {
        display: grid;
        grid-template-columns: 280px 1fr;
        min-height: 100vh;
      }

      /* Sidebar */
      .sidebar {
        background: var(--sidebar-bg);
        border-right: 1px solid oklch(from var(--sidebar-bg) calc(l + 0.08) c h);
        padding: 24px;
        display: flex;
        flex-direction: column;
        gap: 32px;
        min-width: 0;
      }

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

      .logo-mark {
        width: 32px;
        height: 32px;
        background: var(--accent);
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--mono);
        font-weight: 600;
        font-size: 14px;
        color: var(--sidebar-bg);
      }

      .logo-text {
        font-weight: 600;
        font-size: 18px;
        letter-spacing: 0;
        color: var(--sidebar-fg);
      }

      .version {
        font-family: var(--mono);
        font-size: 11px;
        color: oklch(from var(--sidebar-fg) l c h / 0.5);
        background: oklch(from var(--sidebar-bg) calc(l + 0.06) c h);
        padding: 2px 6px;
        border-radius: 4px;
        margin-left: auto;
      }

      /* Nav */
      nav {
        display: flex;
        flex-direction: column;
        gap: 4px;
      }

      .nav-section {
        font-size: 11px;
        font-weight: 500;
        color: oklch(from var(--sidebar-fg) l c h / 0.45);
        text-transform: uppercase;
        letter-spacing: 0;
        padding: 8px 0;
        margin-top: 8px;
      }

      .nav-item {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 12px;
        border-radius: 6px;
        cursor: pointer;
        transition: all 0.15s;
        font-size: 14px;
        color: oklch(from var(--sidebar-fg) l c h / 0.65);
      }

      .nav-item:hover {
        background: oklch(from var(--sidebar-bg) calc(l + 0.06) c h);
        color: var(--sidebar-fg);
      }

      .nav-item.active {
        background: oklch(from var(--accent) l c h / 0.18);
        color: var(--accent);
      }

      .nav-item svg {
        width: 18px;
        height: 18px;
        opacity: 0.7;
      }

      .nav-item.active svg {
        opacity: 1;
      }

      .sidebar-footer {
        margin-top: auto;
        padding-top: 16px;
        border-top: 1px solid oklch(from var(--sidebar-bg) calc(l + 0.08) c h);
      }

      .utility-links {
        display: flex;
        flex-direction: column;
        gap: 8px;
      }

      .utility-links summary {
        cursor: pointer;
        color: oklch(from var(--sidebar-fg) l c h / 0.5);
        font-size: 12px;
        font-weight: 500;
        list-style: none;
      }

      .utility-links summary::-webkit-details-marker {
        display: none;
      }

      .utility-links[open] summary {
        color: oklch(from var(--sidebar-fg) l c h / 0.75);
      }

      .main-topbar {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        min-height: 42px;
        margin-bottom: 24px;
      }

      /* Connection status */
      .connection {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 8px 14px;
        background: rgba(255, 255, 255, 0.92);
        border-radius: 8px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        backdrop-filter: blur(12px);
      }

      .connection-header {
        display: flex;
        align-items: center;
        gap: 6px;
      }

      .connection-label {
        font-size: 11px;
        color: var(--text-dim);
        text-transform: uppercase;
        letter-spacing: 0;
      }

      .status-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--text-dim);
      }

      .status-dot.connected {
        background: var(--accent);
      }
      .status-dot.error {
        background: var(--error);
      }

      .connection-user {
        font-family: var(--mono);
        font-size: 13px;
        color: var(--text);
        min-width: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      .btn-connect {
        margin: 0;
        padding: 6px 12px;
        background: transparent;
        border: 1px solid var(--border);
        border-radius: 8px;
        color: var(--text);
        font-family: var(--sans);
        font-size: 12px;
        cursor: pointer;
        transition: all 0.15s;
      }

      .btn-connect:hover {
        border-color: var(--accent);
        color: var(--accent);
      }

      /* Main content */
      main {
        padding: 32px 40px;
        overflow-y: auto;
        min-width: 0;
      }

      .page {
        display: none;
        animation: fadeIn 0.2s ease;
      }

      .page.active {
        display: block;
      }

      @keyframes fadeIn {
        from {
          opacity: 0;
          transform: translateY(8px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }

      .page-header {
        margin-bottom: 32px;
      }

      .page-title {
        font-size: 24px;
        font-weight: 600;
        letter-spacing: 0;
        margin-bottom: 8px;
      }

      .page-desc {
        color: var(--text-muted);
        font-size: 14px;
      }

      .workflow-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 16px;
        margin-bottom: 24px;
      }

      .workflow-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 18px;
        display: flex;
        flex-direction: column;
        gap: 12px;
        min-height: 180px;
      }

      .workflow-card > div {
        flex: 1;
      }

      .workflow-step {
        width: 28px;
        height: 28px;
        border-radius: 8px;
        background: var(--accent-dim);
        color: var(--accent);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-family: var(--mono);
        font-size: 12px;
        font-weight: 700;
      }

      .workflow-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
      }

      .workflow-copy {
        color: var(--text-muted);
        font-size: 13px;
        flex: 1;
      }

      /* Cards */
      .card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 24px;
        margin-bottom: 20px;
        box-shadow: var(--shadow-sm);
      }

      .card-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 20px;
      }

      .card-title {
        font-size: 14px;
        font-weight: 500;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 0;
      }

      /* Forms */
      .form-group {
        margin-bottom: 16px;
      }

      .form-label {
        display: block;
        font-size: 12px;
        color: var(--text-muted);
        margin-bottom: 6px;
        font-weight: 500;
      }

      .form-input {
        width: 100%;
        padding: 12px 14px;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 6px;
        color: var(--text);
        font-family: var(--mono);
        font-size: 13px;
        transition: border-color 0.15s;
      }

      .form-input:focus {
        border-color: var(--accent);
        outline: 2px solid var(--accent);
        outline-offset: 2px;
      }

      .form-input::placeholder {
        color: var(--text-dim);
      }

      .form-row {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 16px;
      }

      /* Buttons */
      .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 10px 18px;
        border: none;
        border-radius: 6px;
        font-family: var(--sans);
        font-size: 13px;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.15s;
      }

      .btn-primary {
        background: var(--accent);
        color: #ffffff;
      }

      .btn-primary:hover {
        background: var(--accent-strong);
        filter: none;
      }

      .btn-secondary {
        background: var(--surface-2);
        color: var(--text);
        border: 1px solid var(--border);
      }

      .btn-secondary:hover {
        border-color: var(--border-hover);
      }

      .btn-danger {
        background: rgba(239, 68, 68, 0.12);
        color: var(--error);
        border: 1px solid rgba(239, 68, 68, 0.24);
      }

      .btn-danger:hover {
        background: rgba(239, 68, 68, 0.18);
        border-color: rgba(239, 68, 68, 0.36);
      }

      .btn:disabled {
        opacity: 0.5;
        cursor: not-allowed;
      }

      .btn-group {
        display: flex;
        gap: 10px;
      }

      .btn-sm {
        padding: 6px 14px;
        font-size: 13px;
      }

      /* Operation Items */
      .op-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 16px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        transition: all 0.15s;
      }

      .op-item[data-status="complete"] {
        border-color: var(--success);
        background: rgba(16, 185, 129, 0.05);
      }

      .op-item[data-status="active"] {
        border-color: var(--accent);
        background: var(--accent-dim);
      }

      .op-item[data-status="error"] {
        border-color: var(--error);
        background: rgba(239, 68, 68, 0.05);
      }

      .op-status {
        flex-shrink: 0;
      }

      .op-icon {
        width: 24px;
        height: 24px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        border-radius: 50%;
      }

      .op-icon.pending {
        color: var(--text-dim);
        border: 2px solid var(--border);
        font-size: 11px;
        font-weight: 600;
      }

      .op-icon.active {
        color: var(--accent);
        border: 2px solid var(--accent);
        animation: pulse 1.5s infinite;
      }

      .op-icon.complete {
        background: var(--success);
        color: white;
      }

      .op-icon.error {
        background: var(--error);
        color: white;
      }

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

      .op-info {
        flex: 1;
        min-width: 0;
      }

      .op-title {
        font-weight: 500;
        color: var(--text);
      }

      .op-desc {
        font-size: 12px;
        color: var(--text-dim);
        margin-top: 2px;
      }

      .op-item .btn {
        flex-shrink: 0;
      }

      .op-item[data-status="complete"] .btn {
        display: none;
      }

      .op-item[data-status="waiting"] {
        opacity: 0.6;
      }

      .op-item[data-status="waiting"] .btn {
        display: none;
      }

      /* Collections grid */
      .collections-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 16px;
      }

      .collection-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 20px;
        cursor: pointer;
        transition: all 0.15s;
        box-shadow: var(--shadow-sm);
      }

      .collection-card:hover {
        border-color: var(--border-hover);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
      }

      .collection-card-cover {
        height: 96px;
        border-radius: 8px;
        background:
          linear-gradient(
            135deg,
            rgba(32, 129, 226, 0.2),
            rgba(15, 159, 143, 0.18)
          ),
          var(--surface-2);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 16px;
        color: var(--accent);
        font-family: var(--mono);
        font-size: 24px;
        font-weight: 700;
      }

      .collection-stats-row {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-top: 16px;
      }

      .collection-stat {
        background: var(--surface-2);
        border-radius: 8px;
        padding: 10px;
      }

      .collection-stat-value {
        display: block;
        color: var(--text);
        font-family: var(--mono);
        font-size: 13px;
        font-weight: 700;
      }

      .collection-stat-label {
        color: var(--text-dim);
        font-size: 11px;
      }

      .collection-card-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        margin-bottom: 12px;
      }

      .collection-symbol {
        display: inline-block;
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 600;
        color: var(--accent);
        background: var(--accent-dim);
        padding: 4px 8px;
        border-radius: 4px;
        margin-bottom: 12px;
      }

      .collection-name {
        font-size: 16px;
        font-weight: 500;
        margin-bottom: 8px;
      }

      .collection-meta {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--text-dim);
      }

      .collection-creator {
        color: var(--text-muted);
      }

      .status-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 4px 8px;
        border-radius: 8px;
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 600;
        letter-spacing: 0;
        text-transform: uppercase;
      }

      .status-active {
        background: rgba(16, 185, 129, 0.14);
        color: var(--success);
      }

      .status-archived {
        background: rgba(245, 158, 11, 0.14);
        color: var(--warning);
      }

      /* NFT grid */
      .nft-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 16px;
      }

      .nft-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 0;
        cursor: pointer;
        transition: all 0.2s ease;
        overflow: hidden;
        position: relative;
        box-shadow: var(--shadow-sm);
      }

      .nft-card:hover {
        border-color: var(--border-hover);
        transform: translateY(-3px);
        box-shadow: var(--shadow-md);
      }

      .nft-card.selected {
        border-color: var(--accent);
        box-shadow:
          0 0 0 1px var(--accent),
          0 8px 24px rgba(34, 197, 94, 0.15);
      }

      .nft-card-group-badge {
        position: absolute;
        top: 8px;
        right: 8px;
        background: rgba(15, 23, 42, 0.85);
        color: #fff;
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 700;
        padding: 3px 7px;
        border-radius: 12px;
        z-index: 2;
        pointer-events: none;
      }

      .seed-group-status-chip {
        display: inline-block;
        font-family: var(--mono);
        font-size: 10px;
        padding: 2px 6px;
        border-radius: 3px;
        background: rgba(245, 158, 11, 0.15);
        color: #f59e0b;
      }

      .nft-image {
        width: 100%;
        aspect-ratio: 1;
        object-fit: cover;
        background: var(--surface-2);
        display: block;
      }

      .nft-card-body {
        padding: 12px 14px 14px;
      }

      .nft-name {
        font-size: 13px;
        font-weight: 600;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        margin-bottom: 6px;
        color: var(--text);
      }

      .nft-owner {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--accent);
      }

      .nft-meta {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 8px;
        padding-top: 8px;
        border-top: 1px solid var(--border);
        font-family: var(--mono);
        font-size: 11px;
      }

      .nft-meta-supply {
        color: var(--text-muted);
      }

      .nft-type-badge {
        font-size: 10px;
        font-weight: 700;
        letter-spacing: 0;
        padding: 2px 6px;
        border-radius: 3px;
      }

      .nft-type-badge.seed {
        background: var(--accent-dim);
        color: var(--accent);
      }

      .nft-type-badge.instance {
        background: rgba(59, 130, 246, 0.15);
        color: #3b82f6;
      }

      /* Inventory sections */
      .inventory-section {
        margin-bottom: 32px;
      }

      .inventory-section-header {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 16px;
        padding-bottom: 10px;
        border-bottom: 1px solid var(--border);
      }

      .inventory-section-title {
        font-size: 13px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0;
      }

      .inventory-section-count {
        font-family: var(--mono);
        font-size: 12px;
        padding: 2px 8px;
        border-radius: 4px;
      }

      /* Legacy compat for .nft-id used in collection detail */
      .nft-id {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--text-dim);
        margin-top: 4px;
      }

      /* Breadcrumb */
      .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 20px;
        font-size: 13px;
      }

      .breadcrumb-item {
        color: var(--text-muted);
        cursor: pointer;
        transition: color 0.15s;
      }

      .breadcrumb-item:hover {
        color: var(--accent);
      }

      .breadcrumb-sep {
        color: var(--text-dim);
      }

      .breadcrumb-current {
        color: var(--text);
        font-weight: 500;
      }

      /* NFT Detail */
      .nft-detail {
        display: grid;
        grid-template-columns: 400px 1fr;
        gap: 40px;
        align-items: start;
      }

      .nft-detail-image {
        width: 100%;
        aspect-ratio: 1;
        object-fit: cover;
        border-radius: 8px;
        background: var(--surface);
        border: 1px solid var(--border);
        position: sticky;
        top: 24px;
        box-shadow: var(--shadow-md);
      }

      .nft-detail-info {
        display: flex;
        flex-direction: column;
        gap: 24px;
      }

      .nft-detail-title {
        font-size: 32px;
        font-weight: 600;
        letter-spacing: 0;
        color: var(--text);
        margin-bottom: -10px;
      }

      .nft-detail-owner {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px 14px;
        background: var(--surface-2);
        border-radius: 8px;
        width: fit-content;
        border: 1px solid var(--border);
        margin-bottom: 8px;
      }

      .nft-detail-owner-label {
        font-size: 12px;
        color: var(--text-dim);
      }

      .nft-detail-owner-name {
        font-family: var(--mono);
        color: var(--accent);
        font-weight: 500;
      }

      .nft-badges {
        display: flex;
        gap: 8px;
        margin-bottom: -15px;
      }

      .nft-badge {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 6px 12px;
        border-radius: 6px;
        font-size: 11px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0;
      }

      .nft-badge.seed {
        background: var(--accent-dim);
        color: var(--accent);
        border: 1px solid rgba(34, 197, 94, 0.2);
      }

      .nft-badge.instance {
        background: rgba(59, 130, 246, 0.1);
        color: #60a5fa;
        border: 1px solid rgba(59, 130, 246, 0.2);
      }

      .nft-badge.auth {
        background: rgba(20, 184, 166, 0.1);
        color: #5eead4;
        border: 1px solid rgba(20, 184, 166, 0.2);
      }

      .nft-badge.posting {
        background: rgba(59, 130, 246, 0.1);
        color: #60a5fa;
        border: 1px solid rgba(59, 130, 246, 0.2);
      }

      .nft-badge.listed {
        background: rgba(245, 158, 11, 0.1);
        color: var(--warning);
        border: 1px solid rgba(245, 158, 11, 0.2);
      }

      .detail-section {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 24px;
        box-shadow: var(--shadow-sm);
        transition: border-color 0.2s;
      }

      .detail-section:hover {
        border-color: var(--border-hover);
      }

      .detail-section-title {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-dim);
        text-transform: uppercase;
        letter-spacing: 0;
        margin-bottom: 20px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border);
      }

      .detail-section-title svg {
        opacity: 0.6;
      }

      .detail-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }

      .detail-item {
        background: var(--surface-2);
        padding: 16px;
        border-radius: 8px;
        border: 1px solid transparent;
        transition: all 0.2s ease;
      }

      .detail-item:hover {
        border-color: var(--border-hover);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
      }

      .detail-item-label {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 11px;
        color: var(--text-dim);
        margin-bottom: 8px;
        text-transform: uppercase;
        letter-spacing: 0;
        font-weight: 500;
      }

      .detail-item-label svg {
        opacity: 0.6;
      }

      .detail-item-value {
        font-family: var(--mono);
        font-size: 13px;
        color: var(--text);
        word-break: break-all;
        font-weight: 500;
        line-height: 1.4;
      }

      .instances-list {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 12px;
        max-height: 300px;
        overflow-y: auto;
        padding-right: 4px;
      }

      .instance-item {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px 16px;
        background: var(--surface-2);
        border-radius: 8px;
        border: 1px solid var(--border);
        cursor: pointer;
        transition: all 0.2s;
      }

      .instance-item:hover {
        background: var(--surface);
        border-color: var(--accent);
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
      }

      .instance-num {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--accent);
        background: var(--accent-dim);
        padding: 3px 8px;
        border-radius: 4px;
        font-weight: 600;
      }

      .instance-owner {
        font-size: 13px;
        color: var(--text);
        font-weight: 500;
      }

      /* Back button */
      .btn-back {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 16px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        color: var(--text-muted);
        font-size: 13px;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s ease;
        margin-bottom: 24px;
      }

      .btn-back:hover {
        border-color: var(--text-dim);
        color: var(--text);
        transform: translateX(-4px);
      }

      @media (max-width: 900px) {
        .nft-detail {
          grid-template-columns: 1fr;
        }
        .nft-detail-image {
          max-width: 400px;
        }
      }

      /* Seeds table */
      .seeds-table {
        width: 100%;
        border-collapse: collapse;
      }

      .seeds-table th,
      .seeds-table td {
        padding: 12px;
        text-align: left;
        border-bottom: 1px solid var(--border);
      }

      .seeds-table th {
        font-size: 11px;
        font-weight: 500;
        color: var(--text-dim);
        text-transform: uppercase;
        letter-spacing: 0;
      }

      .seeds-table td {
        font-size: 13px;
      }

      .seeds-table .seed-name {
        font-weight: 500;
      }

      .seeds-table .seed-supply {
        font-family: var(--mono);
        color: var(--text-muted);
      }

      /* Upload area */
      .upload-area {
        border: 2px dashed var(--border);
        border-radius: 8px;
        padding: 40px;
        text-align: center;
        cursor: pointer;
        transition: all 0.15s;
      }

      .upload-area:hover {
        border-color: var(--accent);
        background: var(--accent-dim);
      }

      .upload-icon {
        width: 48px;
        height: 48px;
        margin: 0 auto 16px;
        color: var(--text-dim);
      }

      .upload-text {
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 8px;
      }

      .upload-hint {
        font-size: 12px;
        color: var(--text-dim);
      }

      /* Log */
      .log-container {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 16px;
        max-height: 200px;
        overflow-y: auto;
        font-family: var(--mono);
        font-size: 12px;
      }

      .log-entry {
        padding: 4px 0;
        border-bottom: 1px solid var(--surface-2);
        display: flex;
        gap: 10px;
      }

      .log-time {
        color: var(--text-dim);
        flex-shrink: 0;
      }

      .log-msg {
        color: var(--text-muted);
      }
      .log-msg.success {
        color: var(--accent);
      }
      .log-msg.error {
        color: var(--error);
      }
      .log-msg.warning {
        color: var(--warning);
      }

      .app-log {
        margin-top: 20px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 14px 16px;
      }

      .app-log summary {
        cursor: pointer;
        color: var(--text-muted);
        font-size: 13px;
        font-weight: 500;
      }

      .app-log .log-container {
        margin-top: 12px;
        max-height: 160px;
      }

      /* Empty state */
      .empty-state {
        text-align: center;
        padding: 60px 20px;
        color: var(--text-muted);
      }

      .empty-state svg {
        width: 48px;
        height: 48px;
        margin-bottom: 16px;
        opacity: 0.3;
      }

      .empty-state-text {
        font-size: 14px;
      }

      /* Stepper */
      .stepper {
        display: flex;
        gap: 8px;
        margin-bottom: 32px;
      }

      .step {
        flex: 1;
        padding: 12px 16px;
        background: var(--surface-2);
        border-radius: 6px;
        font-size: 13px;
        color: var(--text-dim);
        display: flex;
        align-items: center;
        gap: 10px;
      }

      .step.active {
        background: var(--accent-dim);
        color: var(--accent);
      }

      .step.done {
        color: var(--accent);
      }

      .step-num {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: var(--border);
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--mono);
        font-size: 12px;
        font-weight: 600;
      }

      .step.active .step-num {
        background: var(--accent);
        color: var(--bg);
      }

      .step.done .step-num {
        background: var(--accent);
        color: var(--bg);
      }

      /* Preview */
      .preview-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        margin-bottom: 24px;
      }

      .stat-box {
        background: var(--surface-2);
        border-radius: 8px;
        padding: 16px;
      }

      .stat-label {
        font-size: 11px;
        color: var(--text-dim);
        text-transform: uppercase;
        letter-spacing: 0;
        margin-bottom: 4px;
      }

      .stat-value {
        font-family: var(--mono);
        font-size: 24px;
        font-weight: 600;
        color: var(--accent);
      }

      /* Validation states */
      .validation-item {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 8px 12px;
        background: var(--surface-2);
        border-radius: 6px;
        margin-bottom: 6px;
        font-size: 13px;
      }

      .validation-item.new {
        border-left: 3px solid var(--accent);
      }

      .validation-item.exists {
        border-left: 3px solid var(--warning);
        opacity: 0.7;
      }

      .validation-item.error {
        border-left: 3px solid var(--error);
        background: rgba(239, 68, 68, 0.1);
      }

      .validation-status {
        font-weight: 600;
        font-size: 11px;
        text-transform: uppercase;
        padding: 2px 6px;
        border-radius: 4px;
      }

      .validation-status.new {
        background: var(--accent-dim);
        color: var(--accent);
      }

      .validation-status.exists {
        background: rgba(245, 158, 11, 0.15);
        color: var(--warning);
      }

      .validation-status.error {
        background: rgba(239, 68, 68, 0.15);
        color: var(--error);
      }

      .validation-artid {
        font-family: var(--mono);
        color: var(--text-muted);
      }

      .validation-seedid {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--text-dim);
      }

      .validation-name {
        flex: 1;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      /* Data Tables */
      .data-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 13px;
      }

      .data-table th {
        text-align: left;
        padding: 8px 12px;
        color: var(--text-dim);
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0;
        border-bottom: 1px solid var(--border);
      }

      .data-table td {
        padding: 8px 12px;
        border-bottom: 1px solid var(--border);
        color: var(--text);
      }

      .data-table tr:hover td {
        background: var(--surface-2);
      }

      /* Node page */
      .node-summary-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 12px;
        margin-bottom: 20px;
      }

      .node-layout {
        display: grid;
        grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
        gap: 20px;
        align-items: start;
      }

      .node-column {
        min-width: 0;
      }

      .node-card-copy {
        color: var(--text-muted);
        font-size: 13px;
        margin-bottom: 16px;
      }

      .node-kv-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 12px;
      }

      .node-kv {
        background: var(--surface-2);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 12px 14px;
      }

      .node-kv-label {
        color: var(--text-dim);
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0;
        margin-bottom: 6px;
      }

      .node-kv-value {
        color: var(--text);
        font-family: var(--mono);
        font-size: 13px;
        line-height: 1.45;
        word-break: break-word;
      }

      .node-ops-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 14px;
      }

      .node-chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 5px 10px;
        border-radius: 999px;
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 600;
        border: 1px solid var(--border);
        background: var(--surface-2);
        color: var(--text);
      }

      .node-chip.good {
        background: var(--success-dim);
        color: var(--success);
        border-color: oklch(from var(--success) l c h / 0.35);
      }

      .node-chip.warn {
        background: rgba(245, 158, 11, 0.12);
        color: var(--warning);
        border-color: rgba(245, 158, 11, 0.28);
      }

      .node-chip.bad {
        background: rgba(239, 68, 68, 0.1);
        color: var(--error);
        border-color: rgba(239, 68, 68, 0.24);
      }

      .node-register-note {
        color: var(--text-muted);
        font-size: 12px;
        margin-bottom: 16px;
      }

      .node-register-note code,
      .node-table-wrap code,
      .node-card-copy code {
        font-family: var(--mono);
        font-size: 12px;
        background: var(--surface-2);
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 1px 6px;
      }

      .node-table-wrap {
        overflow-x: auto;
      }

      .node-empty {
        color: var(--text-dim);
        font-size: 13px;
      }

      .node-code {
        font-family: var(--mono);
        font-size: 12px;
        word-break: break-word;
      }

      .node-detail-toggle {
        font-size: 12px;
        color: var(--accent);
        cursor: pointer;
      }

      .node-detail-body {
        margin-top: 8px;
        padding: 10px 12px;
        border: 1px solid var(--border);
        border-radius: 8px;
        background: var(--surface-2);
        font-family: var(--mono);
        font-size: 11px;
        white-space: pre-wrap;
        word-break: break-word;
      }

      /* Stat Boxes */
      .stat-box {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 12px 16px;
        text-align: center;
      }

      .stat-label {
        font-size: 11px;
        color: var(--text-dim);
        text-transform: uppercase;
        letter-spacing: 0;
        margin-bottom: 4px;
      }

      .stat-value {
        font-size: 18px;
        font-weight: 600;
        font-family: var(--mono);
        color: var(--text);
      }

      /* Advanced Tabs */
      .advanced-tabs {
        display: flex;
        gap: 0;
        border-bottom: 1px solid var(--border);
        margin-bottom: 24px;
      }

      .advanced-tab {
        padding: 12px 20px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-muted);
        cursor: pointer;
        border-bottom: 2px solid transparent;
        transition: all 0.15s;
        background: none;
        border-top: none;
        border-left: none;
        border-right: none;
        font-family: var(--sans);
      }

      .advanced-tab:hover {
        color: var(--text);
      }

      .advanced-tab.active {
        color: var(--accent);
        border-bottom-color: var(--accent);
      }

      .advanced-tab-content {
        display: none;
      }

      .advanced-tab-content.active {
        display: block;
      }

      /* Marketplace */
      .explore-toolbar {
        display: grid;
        grid-template-columns: minmax(220px, 1fr) auto;
        gap: 12px;
        align-items: end;
        padding: 12px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        margin-bottom: 20px;
        box-shadow: var(--shadow-sm);
      }

      .marketplace-filters {
        display: grid;
        grid-template-columns:
          minmax(260px, 1.5fr)
          minmax(160px, 0.7fr)
          minmax(140px, 0.6fr)
          minmax(88px, 0.4fr)
          minmax(88px, 0.4fr)
          auto;
        gap: 12px;
        align-items: end;
        padding: 12px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        margin-bottom: 20px;
        box-shadow: var(--shadow-sm);
      }

      .filter-field {
        min-width: 0;
      }

      .explore-toolbar-actions,
      .filter-actions {
        display: flex;
        gap: 8px;
        align-items: center;
        justify-content: flex-end;
        flex-wrap: wrap;
      }

      .marketplace-filters .form-input,
      .marketplace-filters .btn {
        min-height: 43px;
      }

      .marketplace-summary,
      .inventory-summary {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
        gap: 12px;
        margin-bottom: 20px;
      }

      .marketplace-summary-card,
      .inventory-summary-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 14px 16px;
        box-shadow: var(--shadow-sm);
      }

      .marketplace-price {
        display: flex;
        flex-direction: column;
        gap: 2px;
      }

      .marketplace-price-label {
        color: var(--text-dim);
        font-size: 11px;
      }

      .marketplace-price-value {
        color: var(--text);
        font-family: var(--mono);
        font-size: 14px;
        font-weight: 700;
      }

      .nft-card-footer {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        margin-top: 12px;
        padding-top: 12px;
        border-top: 1px solid var(--border);
      }

      /* Field errors */
      .field-error {
        display: none;
        font-size: 12px;
        color: var(--error);
        margin-top: 4px;
      }

      /* Responsive */
      @media (max-width: 768px) {
        .app {
          grid-template-columns: 1fr;
        }

        .sidebar {
          position: sticky;
          top: 0;
          z-index: 900;
          padding: 12px;
          gap: 12px;
          border-right: 0;
          border-bottom: 1px solid var(--border);
        }

        .logo {
          display: none;
        }

        .sidebar-footer {
          display: none;
        }

        nav {
          flex-direction: row;
          overflow-x: auto;
          padding-bottom: 2px;
          max-width: 100%;
        }

        .nav-section {
          display: none;
        }

        .nav-item {
          white-space: nowrap;
          flex: 0 0 auto;
        }

        main {
          padding: 20px;
        }

        .main-topbar {
          justify-content: stretch;
          margin-bottom: 16px;
        }

        .connection {
          display: grid;
          grid-template-columns: auto minmax(0, 1fr);
          width: 100%;
          align-items: center;
        }

        .connection .btn-connect {
          grid-column: 1 / -1;
          width: 100%;
        }

        .workflow-card {
          min-height: 0;
        }

        .explore-toolbar,
        .marketplace-filters {
          grid-template-columns: 1fr;
        }

        .explore-toolbar-actions,
        .filter-actions {
          align-items: stretch;
        }

        .explore-toolbar-actions > *,
        .filter-actions > * {
          width: 100% !important;
        }
      }

      @media (min-width: 769px) and (max-width: 1180px) {
        .marketplace-filters {
          grid-template-columns: repeat(2, minmax(0, 1fr));
        }

        .filter-actions {
          grid-column: 1 / -1;
        }
      }

      .seed-group-summary {
        display: grid;
        grid-template-columns: 120px 1fr;
        gap: 20px;
        align-items: center;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 16px;
        margin-bottom: 24px;
      }

      .seed-group-image {
        width: 120px;
        height: 120px;
        object-fit: cover;
        border-radius: 6px;
        background: var(--surface-2);
      }

      .seed-group-meta {
        display: flex;
        flex-direction: column;
        gap: 6px;
        font-size: 13px;
      }

      .seed-group-table {
        width: 100%;
        border-collapse: collapse;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 8px;
        overflow: hidden;
      }

      .seed-group-table th,
      .seed-group-table td {
        padding: 10px 12px;
        text-align: left;
        font-size: 12px;
        border-bottom: 1px solid var(--border);
      }

      .seed-group-table th {
        background: var(--surface-2);
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: var(--text-muted);
      }

      .seed-group-table tr:last-child td {
        border-bottom: none;
      }

      .seed-group-actions {
        display: flex;
        gap: 6px;
        flex-wrap: wrap;
      }

      .seed-group-actions button {
        font-size: 11px;
        padding: 4px 10px;
      }

      .seed-group-actions button[disabled] {
        opacity: 0.4;
        cursor: not-allowed;
      }

      .seed-group-id {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--text-muted);
      }

      @media (max-width: 1100px) {
        .node-layout {
          grid-template-columns: 1fr;
        }
      }