:root {
    --glass-bg: rgba(255,255,255,0.06);
    --glass-bg-hover: rgba(255,255,255,0.10);
    --glass-border: rgba(255,255,255,0.12);
    --glass-shadow: 0 8px 32px rgba(0,0,0,0.4);
    --blur: blur(20px);
    --blur-heavy: blur(40px);

    --accent: #7c6fff;
    --accent2: #ff6f91;
    --accent3: #6fffd4;
    --accent-glow: 0 0 30px rgba(124,111,255,0.4);

    --text: #f0f0f5;
    --text-muted: rgba(240,240,245,0.5);
    --text-dim: rgba(240,240,245,0.3);

    --success: #6fffd4;
    --warning: #ffd46f;
    --danger: #ff6f6f;

    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
  }

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

  html { height: 100%; }

  body {
    font-family: 'Space Grotesk', sans-serif;
    background: #080b18;
    color: var(--text);
    height: 100%;
    overflow: hidden;
    font-size: 14px;
  }

  /* ── Background ── */
  .bg-mesh {
    position: fixed; inset: 0; z-index: 0;
    background:
      radial-gradient(ellipse 80% 80% at 20% 10%, rgba(124,111,255,0.18) 0%, transparent 60%),
      radial-gradient(ellipse 60% 60% at 80% 80%, rgba(255,111,145,0.12) 0%, transparent 60%),
      radial-gradient(ellipse 70% 70% at 50% 50%, rgba(111,255,212,0.06) 0%, transparent 60%),
      linear-gradient(135deg, #080b18 0%, #0d1226 50%, #0a0f20 100%);
  }
  .bg-grid {
    position: fixed; inset: 0; z-index: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse 100% 100% at center, black 40%, transparent 100%);
  }

  /* ── Layout ── */
  #app {
    position: relative; z-index: 1;
    display: flex; height: 100vh; overflow: hidden;
  }

  /* ── Sidebar ── */
  .sidebar {
    width: 220px; flex-shrink: 0;
    background: rgba(255,255,255,0.04);
    border-right: 1px solid var(--glass-border);
    backdrop-filter: var(--blur);
    display: flex; flex-direction: column;
    padding: 24px 12px;
    gap: 4px;
    overflow-y: auto;
  }

  .sidebar-logo {
    display: flex; align-items: center; gap: 10px;
    padding: 0 8px 20px;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 8px;
  }
  .sidebar-logo-icon {
    width: 36px; height: 36px; border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    box-shadow: var(--accent-glow);
    flex-shrink: 0;
  }
  .sidebar-logo-text { font-size: 13px; font-weight: 600; line-height: 1.2; }
  .sidebar-logo-sub { font-size: 10px; color: var(--text-muted); font-weight: 400; }

  .nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: var(--radius-sm);
    cursor: pointer; color: var(--text-muted);
    transition: all var(--transition);
    font-size: 13px; font-weight: 500;
    border: 1px solid transparent;
    user-select: none;
  }
  .nav-item:hover {
    background: var(--glass-bg-hover);
    color: var(--text);
    border-color: var(--glass-border);
  }
  .nav-item.active {
    background: linear-gradient(135deg, rgba(124,111,255,0.2), rgba(124,111,255,0.08));
    color: var(--text);
    border-color: rgba(124,111,255,0.3);
    box-shadow: 0 0 20px rgba(124,111,255,0.1);
  }
  .nav-item .icon { font-size: 16px; flex-shrink: 0; width: 20px; text-align: center; }

  .nav-section {
    font-size: 10px; font-weight: 600; letter-spacing: 0.1em;
    color: var(--text-dim); padding: 12px 12px 4px; text-transform: uppercase;
  }

  .sidebar-footer {
    margin-top: auto; padding-top: 16px;
    border-top: 1px solid var(--glass-border);
  }

  /* ── Main Content ── */
  .main {
    flex: 1; overflow-y: auto; overflow-x: hidden;
    padding: 24px 28px;
    display: flex; flex-direction: column; gap: 24px;
  }

  /* ── Page Header ── */
  .page-header {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 12px;
  }
  .page-title { font-size: 24px; font-weight: 700; }
  .page-subtitle { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

  /* ── Glass Cards ── */
  .glass {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--glass-shadow);
  }
  .glass-hover {
    transition: all var(--transition);
  }
  .glass-hover:hover {
    background: var(--glass-bg-hover);
    border-color: rgba(255,255,255,0.18);
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.5);
  }

  /* ── Agent Cards ── */
  .agent-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
  }

  .agent-card {
    padding: 20px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .agent-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    opacity: 0;
    transition: opacity var(--transition);
  }
  .agent-card:hover::before { opacity: 1; }

  .agent-card-header {
    display: flex; align-items: flex-start; gap: 12px; margin-bottom: 14px;
  }

  .agent-avatar {
    width: 44px; height: 44px; border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(124,111,255,0.3);
  }
  .agent-avatar.green { background: linear-gradient(135deg, #6fffd4, #6fbfff); box-shadow: 0 4px 16px rgba(111,255,212,0.3); }
  .agent-avatar.pink { background: linear-gradient(135deg, #ff6f91, #ff9f6f); box-shadow: 0 4px 16px rgba(255,111,145,0.3); }
  .agent-avatar.blue { background: linear-gradient(135deg, #6fbfff, #6f91ff); box-shadow: 0 4px 16px rgba(111,191,255,0.3); }

  .agent-info { flex: 1; min-width: 0; }
  .agent-name { font-weight: 600; font-size: 15px; truncate; }
  .agent-id { font-size: 11px; color: var(--text-muted); font-family: 'Space Mono', monospace; margin-top: 2px; }

  .status-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
    animation: pulse 2s infinite;
    flex-shrink: 0; margin-top: 4px;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
  }

  .agent-meta { display: flex; flex-direction: column; gap: 6px; }
  .meta-row {
    display: flex; align-items: center; gap: 6px;
    font-size: 12px; color: var(--text-muted);
  }
  .meta-row .icon { font-size: 12px; width: 16px; text-align: center; }
  .meta-value { font-family: 'Space Mono', monospace; font-size: 11px; }

  .agent-tags {
    display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px;
  }
  .tag {
    padding: 3px 8px; border-radius: 20px;
    font-size: 10px; font-weight: 600; letter-spacing: 0.05em;
    background: rgba(124,111,255,0.15);
    border: 1px solid rgba(124,111,255,0.25);
    color: var(--accent);
  }
  .tag.green { background: rgba(111,255,212,0.1); border-color: rgba(111,255,212,0.2); color: var(--success); }
  .tag.pink { background: rgba(255,111,145,0.1); border-color: rgba(255,111,145,0.2); color: var(--accent2); }
  .tag.orange { background: rgba(255,212,111,0.1); border-color: rgba(255,212,111,0.2); color: var(--warning); }

  .agent-actions {
    display: flex; gap: 8px; margin-top: 16px; padding-top: 14px;
    border-top: 1px solid var(--glass-border);
  }

  /* ── Buttons ── */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-sm);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px; font-weight: 500;
    cursor: pointer; border: none; outline: none;
    transition: all var(--transition);
    white-space: nowrap;
  }
  .btn-primary {
    background: linear-gradient(135deg, var(--accent), #9b6fff);
    color: white;
    box-shadow: 0 4px 16px rgba(124,111,255,0.3);
  }
  .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(124,111,255,0.4); }
  .btn-secondary {
    background: var(--glass-bg);
    color: var(--text);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--blur);
  }
  .btn-secondary:hover { background: var(--glass-bg-hover); border-color: rgba(255,255,255,0.2); }
  .btn-danger { background: rgba(255,111,111,0.15); color: var(--danger); border: 1px solid rgba(255,111,111,0.25); }
  .btn-danger:hover { background: rgba(255,111,111,0.25); }
  .btn-success { background: rgba(111,255,212,0.15); color: var(--success); border: 1px solid rgba(111,255,212,0.25); }
  .btn-success:hover { background: rgba(111,255,212,0.25); }
  .btn-sm { padding: 5px 10px; font-size: 12px; }
  .btn-icon { padding: 8px; width: 34px; height: 34px; }
  .btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; }

  /* ── Forms ── */
  .form-group { display: flex; flex-direction: column; gap: 6px; }
  .form-label { font-size: 12px; font-weight: 600; color: var(--text-muted); letter-spacing: 0.05em; }

  .form-input, .form-select, .form-textarea {
    padding: 10px 14px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    outline: none;
    transition: all var(--transition);
    width: 100%;
  }
  .form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--accent);
    background: rgba(124,111,255,0.08);
    box-shadow: 0 0 0 3px rgba(124,111,255,0.12);
  }
  .form-input::placeholder { color: var(--text-dim); }
  .form-select { appearance: none; cursor: pointer; }
  .form-select option { background: #1a1f38; }
  .form-textarea { resize: vertical; min-height: 80px; }

  /* ── Tabs ── */
  .tabs { display: flex; gap: 2px; flex-wrap: wrap; }
  .tab {
    padding: 7px 14px; border-radius: var(--radius-sm);
    font-size: 12px; font-weight: 500;
    cursor: pointer; color: var(--text-muted);
    transition: all var(--transition);
    border: 1px solid transparent;
  }
  .tab:hover { color: var(--text); background: var(--glass-bg); }
  .tab.active {
    background: linear-gradient(135deg, rgba(124,111,255,0.2), rgba(124,111,255,0.08));
    color: var(--text);
    border-color: rgba(124,111,255,0.3);
  }

  /* ── Modal ── */
  .modal-overlay {
    position: fixed; inset: 0; z-index: 100;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    animation: fadeIn 0.2s ease;
  }
  @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

  .modal {
    background: rgba(12,15,32,0.95);
    backdrop-filter: var(--blur-heavy);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 32px 80px rgba(0,0,0,0.7), var(--accent-glow);
    max-width: 600px; width: 100%;
    max-height: 90vh; overflow-y: auto;
    animation: slideUp 0.3s cubic-bezier(0.4,0,0.2,1);
  }
  .modal-wide { max-width: 900px; }
  .modal-full { max-width: 95vw; max-height: 95vh; }

  @keyframes slideUp {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }

  .modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 24px 28px 0;
    margin-bottom: 20px;
  }
  .modal-title { font-size: 18px; font-weight: 700; }
  .modal-close {
    width: 32px; height: 32px; border-radius: 8px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; transition: all var(--transition);
  }
  .modal-close:hover { background: var(--glass-bg-hover); color: var(--text); }

  .modal-body { padding: 0 28px; }
  .modal-footer {
    display: flex; gap: 10px; justify-content: flex-end;
    padding: 20px 28px 24px;
    border-top: 1px solid var(--glass-border);
    margin-top: 20px;
  }

  /* ── File Manager ── */
  .file-list { display: flex; flex-direction: column; gap: 2px; }
  .file-item {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: var(--radius-sm);
    cursor: pointer; color: var(--text-muted);
    transition: all var(--transition);
    font-size: 13px;
  }
  .file-item:hover { background: var(--glass-bg-hover); color: var(--text); }
  .file-item.selected { background: rgba(124,111,255,0.15); color: var(--text); border: 1px solid rgba(124,111,255,0.2); }
  .file-icon { font-size: 14px; flex-shrink: 0; width: 18px; text-align: center; }
  .file-name { flex: 1; }
  .file-size { font-size: 11px; color: var(--text-dim); font-family: 'Space Mono', monospace; }

  /* ── CodeMirror host ── */
  .cm-host {
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: rgba(0,0,0,0.3);
    min-height: 300px;
  }
  .cm-host .cm-editor {
    height: 100%;
    font-family: 'Space Mono', monospace !important;
    font-size: 13px !important;
    min-height: 300px;
  }

  /* ── Table ── */
  .table { width: 100%; border-collapse: collapse; }
  .table th, .table td {
    padding: 10px 14px; text-align: left;
    border-bottom: 1px solid var(--glass-border);
    font-size: 13px;
  }
  .table th {
    font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--text-muted);
    background: rgba(255,255,255,0.03);
  }
  .table tr:last-child td { border-bottom: none; }
  .table tr:hover td { background: rgba(255,255,255,0.02); }

  /* ── Toasts ── */
  .toast-container {
    position: fixed; bottom: 24px; right: 24px;
    display: flex; flex-direction: column; gap: 8px;
    z-index: 9999;
  }
  .toast {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 18px; border-radius: var(--radius-sm);
    background: rgba(12,15,32,0.95);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    font-size: 13px; color: var(--text);
    max-width: 360px;
    animation: slideInRight 0.3s ease;
  }
  @keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
  }
  .toast.success { border-color: rgba(111,255,212,0.3); }
  .toast.error { border-color: rgba(255,111,111,0.3); }
  .toast.warning { border-color: rgba(255,212,111,0.3); }
  .toast-icon { font-size: 16px; }

  /* ── Login Page ── */
  .login-page {
    position: fixed; inset: 0; z-index: 200;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
  }
  .login-card {
    width: 100%; max-width: 400px;
    padding: 40px;
    text-align: center;
    animation: slideUp 0.4s cubic-bezier(0.4,0,0.2,1);
  }
  .login-logo {
    width: 72px; height: 72px; border-radius: 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex; align-items: center; justify-content: center;
    font-size: 36px; margin: 0 auto 24px;
    box-shadow: var(--accent-glow), 0 16px 40px rgba(0,0,0,0.4);
  }
  .login-title { font-size: 26px; font-weight: 700; margin-bottom: 6px; }
  .login-sub { color: var(--text-muted); font-size: 13px; margin-bottom: 32px; }
  .login-input-wrap { position: relative; margin-bottom: 12px; }
  .login-input {
    padding: 14px 18px;
    padding-right: 48px;
    background: rgba(255,255,255,0.07);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    outline: none;
    width: 100%;
    transition: all var(--transition);
    text-align: center;
    letter-spacing: 0.1em;
  }
  .login-input:focus {
    border-color: var(--accent);
    background: rgba(124,111,255,0.1);
    box-shadow: 0 0 0 3px rgba(124,111,255,0.15);
  }
  .login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--accent), #9b6fff);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px; font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 20px rgba(124,111,255,0.35);
    margin-top: 8px;
  }
  .login-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(124,111,255,0.45); }
  .login-btn:active { transform: translateY(0); }
  .login-error {
    color: var(--danger);
    font-size: 13px; margin-top: 12px;
    animation: shake 0.4s ease;
  }
  @keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
  }

  /* ── Misc ── */
  .divider { border: none; border-top: 1px solid var(--glass-border); margin: 16px 0; }
  .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
  .flex { display: flex; }
  .flex-col { flex-direction: column; }
  .items-center { align-items: center; }
  .gap-2 { gap: 8px; }
  .gap-3 { gap: 12px; }
  .gap-4 { gap: 16px; }
  .mt-2 { margin-top: 8px; }
  .mt-3 { margin-top: 12px; }
  .mt-4 { margin-top: 16px; }
  .p-4 { padding: 16px; }
  .p-5 { padding: 20px; }
  .p-6 { padding: 24px; }
  .text-sm { font-size: 12px; }
  .text-mono { font-family: 'Space Mono', monospace; font-size: 11px; }
  .text-muted { color: var(--text-muted); }
  .text-accent { color: var(--accent); }
  .text-success { color: var(--success); }
  .text-danger { color: var(--danger); }
  .text-warning { color: var(--warning); }
  .font-bold { font-weight: 700; }
  .truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .badge {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 2px 8px; border-radius: 20px;
    font-size: 10px; font-weight: 600;
    background: rgba(124,111,255,0.15);
    color: var(--accent);
    border: 1px solid rgba(124,111,255,0.2);
  }
  .badge.success { background: rgba(111,255,212,0.1); color: var(--success); border-color: rgba(111,255,212,0.2); }
  .badge.danger { background: rgba(255,111,111,0.1); color: var(--danger); border-color: rgba(255,111,111,0.2); }

  .spinner {
    width: 20px; height: 20px; border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.1);
    border-top-color: var(--accent);
    animation: spin 0.6s linear infinite;
    display: inline-block;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  .breadcrumb {
    display: flex; align-items: center; gap: 6px;
    font-size: 12px; color: var(--text-muted);
  }
  .breadcrumb-sep { color: var(--text-dim); }
  .breadcrumb-item { cursor: pointer; transition: color var(--transition); }
  .breadcrumb-item:hover { color: var(--text); }
  .breadcrumb-item.current { color: var(--text); font-weight: 500; }

  /* ── Scrollbar ── */
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }
  ::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

  /* ── Toggle ── */
  .toggle {
    position: relative; width: 40px; height: 22px;
    display: inline-block; cursor: pointer;
  }
  .toggle input { display: none; }
  .toggle-slider {
    position: absolute; inset: 0; border-radius: 11px;
    background: rgba(255,255,255,0.12);
    border: 1px solid var(--glass-border);
    transition: all var(--transition);
  }
  .toggle-slider::before {
    content: ''; position: absolute;
    width: 16px; height: 16px; border-radius: 50%;
    top: 2px; left: 2px;
    background: var(--text-muted);
    transition: all var(--transition);
  }
  .toggle input:checked + .toggle-slider {
    background: rgba(124,111,255,0.3);
    border-color: var(--accent);
  }
  .toggle input:checked + .toggle-slider::before {
    transform: translateX(18px);
    background: var(--accent);
    box-shadow: 0 0 8px rgba(124,111,255,0.5);
  }

  /* ── Code block ── */
  .code-block {
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
    overflow-x: auto;
    white-space: pre;
  }

  /* Responsive */
  @media (max-width: 768px) {
    .sidebar { width: 60px; padding: 16px 8px; }
    .sidebar-logo-text, .nav-item span, .nav-section { display: none; }
    .nav-item { justify-content: center; padding: 10px; }
    .main { padding: 16px; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .agent-grid { grid-template-columns: 1fr; }
  }