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

:root {
    --primary: #ff6b35;
    --secondary: #004e89;
    --success: #06d6a0;
    --danger: #ef476f;
    --warning: #ffd166;
    --dark: #1a1a2e;
    --light: #f8f9fa;
    --border: #dee2e6;
    --shadow: rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: var(--dark);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.header {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px var(--shadow);
}

.header-content h1 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--dark);
}

.header-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 20px;
    border-radius: 8px;
    color: white;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

.stat-value {
    font-size: 28px;
    font-weight: bold;
}

.stat-value.status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

.status-dot.offline {
    background: var(--danger);
    animation: none;
}

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

/* Toolbar */
.toolbar {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px var(--shadow);
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
}

.search-box input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.filter-buttons {
    display: flex;
    gap: 8px;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid var(--border);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.filter-btn:hover {
    background: var(--light);
}

.filter-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-refresh {
    background: var(--secondary);
    color: white;
}

.btn-refresh:hover {
    background: #003d6b;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--light);
    color: var(--dark);
    border: 2px solid var(--border);
}

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

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

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #d63a5f;
}

/* Table */
.table-container {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px var(--shadow);
    overflow-x: auto;
}

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

.seeds-table th {
    background: var(--light);
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--dark);
    border-bottom: 2px solid var(--border);
}

.seeds-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.seeds-table tr:hover {
    background: var(--light);
}

.seeds-table td.loading {
    text-align: center;
    padding: 40px;
    color: #666;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

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

.seed-text {
    font-family: 'Courier New', monospace;
    font-size: 12px;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
}

.seed-text:hover {
    color: var(--primary);
}

.address-text {
    font-family: 'Courier New', monospace;
    font-size: 11px;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-seed {
    background: #e3f2fd;
    color: #1976d2;
}

.badge-public {
    background: #f3e5f5;
    color: #7b1fa2;
}

.badge-create {
    background: #e8f5e9;
    color: #388e3c;
}

.action-buttons {
    display: flex;
    gap: 8px;
}

.btn-icon {
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-view {
    background: var(--secondary);
    color: white;
}

.btn-view:hover {
    background: #003d6b;
}

.btn-delete {
    background: var(--danger);
    color: white;
}

.btn-delete:hover {
    background: #d63a5f;
}

/* Pagination */
.pagination {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 6px var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-info {
    font-weight: 500;
    color: var(--dark);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    animation: fadeIn 0.3s;
}

.modal.show {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.modal-content {
    background: white;
    border-radius: 12px;
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 24px;
    color: var(--dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 32px;
    cursor: pointer;
    color: #999;
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 30px;
}

.detail-row {
    margin-bottom: 20px;
}

.detail-label {
    font-weight: 600;
    color: #666;
    font-size: 14px;
    margin-bottom: 8px;
}

.detail-value {
    font-family: 'Courier New', monospace;
    background: var(--light);
    padding: 12px;
    border-radius: 6px;
    word-break: break-all;
    font-size: 13px;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
}

.toast {
    background: white;
    padding: 16px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    animation: slideIn 0.3s;
}

@keyframes slideIn {
    from { transform: translateX(400px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.info {
    border-left: 4px solid var(--secondary);
}

.toast-icon {
    font-size: 24px;
}

.toast-message {
    flex: 1;
    font-size: 14px;
}

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

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-buttons {
        flex-wrap: wrap;
    }

    .table-container {
        overflow-x: auto;
    }

    .seeds-table {
        font-size: 12px;
    }

    .seeds-table th,
    .seeds-table td {
        padding: 10px 8px;
    }

    .pagination {
        flex-direction: column;
        gap: 15px;
    }
}