[x-cloak] { display: none !important; }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --bg: #1e1e2e;
      --surface: #2a2a3e;
      --surface2: #313148;
      --border: #44445a;
      --text: #cdd6f4;
      --dim: #6c7086;
      --accent: #89b4fa;
      --green: #a6e3a1;
      --yellow: #f9e2af;
      --red: #f38ba8;
      --orange: #fab387;
    }

    body {
      font-family: 'JetBrains Mono', 'Fira Code', monospace;
      background: var(--bg);
      color: var(--text);
      display: flex;
      height: 100vh;
      overflow: hidden;
      font-size: 13px;
      user-select: none;
    }
    input, textarea, select { user-select: text; }
    pre, code { user-select: text; }
    .response-body { user-select: text; }
    .kv-input { user-select: text; }

    /* Sidebar */
    #sidebar {
      width: 240px;
      min-width: 240px;
      background: var(--surface);
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }

    #sidebar header {
      padding: 14px 16px;
      font-size: 15px;
      font-weight: 700;
      color: var(--accent);
      border-bottom: 1px solid var(--border);
      letter-spacing: 0.5px;
    }

    .sidebar-section {
      padding: 8px 0;
      border-bottom: 1px solid var(--border);
    }

    .sidebar-section-title {
      padding: 4px 16px;
      font-size: 10px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--dim);
    }

    .sidebar-item {
      padding: 6px 16px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text);
      border-left: 3px solid transparent;
      transition: background 0.1s;
    }
    .sidebar-item:hover { background: var(--surface2); }
    .sidebar-item.active { border-left-color: var(--accent); background: var(--surface2); }

    .col-actions { opacity: 0; transition: opacity 0.1s; cursor: pointer; padding: 0 4px; border-radius: 3px; font-size: 14px; line-height: 1; color: var(--dim); flex-shrink: 0; }
    .sidebar-item:hover .col-actions { opacity: 1; }
    .col-actions:hover { background: var(--border); color: var(--text); }

    .col-menu-dropdown { position: fixed; background: var(--surface2); border: 1px solid var(--border); border-radius: 6px; min-width: 130px; box-shadow: 0 4px 14px rgba(0,0,0,0.35); z-index: 9999; overflow: hidden; }
    .col-menu-item { padding: 8px 14px; cursor: pointer; font-size: 12px; color: var(--text); white-space: nowrap; }
    .col-menu-item:hover { background: var(--surface); }
    .col-menu-item.danger { color: var(--red); }

    .search-modal {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 10px;
      width: 560px;
      max-height: 480px;
      display: flex;
      flex-direction: column;
      box-shadow: 0 8px 32px rgba(0,0,0,0.5);
      overflow: hidden;
    }
    .search-modal input {
      width: 100%; background: transparent; border: none; outline: none;
      color: var(--text); font-size: 15px; padding: 16px 20px;
      font-family: inherit;
    }
    .search-result {
      display: flex; align-items: center; gap: 8px;
      padding: 8px 16px; cursor: pointer; font-size: 12px;
    }
    .search-result:hover, .search-result.selected { background: var(--surface2); }
    .search-hint {
      padding: 8px 16px; font-size: 11px; color: var(--dim);
      border-top: 1px solid var(--border); display: flex; gap: 16px;
    }

    .dialog-modal {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 10px;
      width: 360px;
      padding: 24px 24px 20px;
      display: flex;
      flex-direction: column;
      gap: 18px;
      box-shadow: 0 8px 32px rgba(0,0,0,0.6);
    }
    .dialog-msg {
      font-size: 13px;
      line-height: 1.6;
      color: var(--text);
    }
    .dialog-actions {
      display: flex;
      justify-content: flex-end;
      gap: 8px;
    }

    .method-badge {
      font-size: 10px;
      font-weight: 700;
      padding: 1px 5px;
      border-radius: 3px;
      min-width: 38px;
      text-align: center;
    }
    .method-GET    { background: #1e3a5f; color: var(--accent); }
    .method-POST   { background: #2e3a1e; color: var(--green); }
    .method-PUT    { background: #3a2e1e; color: var(--orange); }
    .method-PATCH  { background: #2e2e1e; color: var(--yellow); }
    .method-DELETE { background: #3a1e1e; color: var(--red); }

    /* Main content */
    #main {
      flex: 1;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }

    /* Request builder */
    #request-panel {
      padding: 16px;
      border-bottom: 1px solid var(--border);
      background: var(--surface);
    }

    .url-row {
      display: flex;
      gap: 8px;
      align-items: center;
    }

    select, input, textarea {
      background: var(--surface2);
      border: 1px solid var(--border);
      color: var(--text);
      border-radius: 4px;
      padding: 6px 10px;
      font-family: inherit;
      font-size: 13px;
      outline: none;
    }
    select:focus, input:focus, textarea:focus {
      border-color: var(--accent);
    }

    #method-select { width: 90px; font-weight: 700; }
    #url-input { flex: 1; }

    .btn {
      padding: 6px 16px;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      font-family: inherit;
      font-size: 13px;
      font-weight: 600;
      transition: opacity 0.1s;
    }
    .btn:hover { opacity: 0.85; }
    .btn:active { opacity: 0.7; }
    .btn-primary { background: var(--accent); color: var(--bg); }
    .btn-success { background: var(--green); color: var(--bg); }
    .btn-danger  { background: var(--red); color: var(--bg); }
    .btn-ghost   { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }

    /* Tabs */
    .tabs {
      display: flex;
      gap: 2px;
      padding: 8px 16px 0;
      border-bottom: 1px solid var(--border);
    }
    .tab {
      padding: 6px 14px;
      cursor: pointer;
      color: var(--dim);
      border-bottom: 2px solid transparent;
      transition: color 0.1s;
    }
    .tab:hover { color: var(--text); }
    .tab.active { color: var(--accent); border-bottom-color: var(--accent); }

    .tab-content { padding: 12px 16px; }

    /* KV editor */
    .kv-row {
      display: flex;
      gap: 6px;
      margin-bottom: 6px;
      align-items: center;
    }
    .kv-row input { flex: 1; }
    .kv-row .btn { padding: 4px 10px; font-size: 12px; }

    /* Response panel */
    #response-panel {
      flex: 1;
      overflow: auto;
      padding: 16px;
    }

    .response-status {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .status-2xx { color: var(--green); }
    .status-3xx { color: var(--yellow); }
    .status-4xx, .status-5xx { color: var(--red); }

    .response-tabs { margin-bottom: 12px; }

    pre {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 6px;
      padding: 12px;
      overflow: auto;
      max-height: 400px;
      white-space: pre-wrap;
      word-break: break-word;
      line-height: 1.5;
    }

    .headers-table {
      width: 100%;
      border-collapse: collapse;
    }
    .headers-table th, .headers-table td {
      text-align: left;
      padding: 5px 10px;
      border-bottom: 1px solid var(--border);
    }
    .headers-table th { color: var(--dim); font-size: 11px; text-transform: uppercase; }

    /* Save dialog */
    .save-row {
      display: flex;
      gap: 8px;
      align-items: center;
      margin-top: 10px;
    }
    .save-row input { width: 160px; }

    /* Loading spinner */
    .spinner {
      display: inline-block;
      width: 14px;
      height: 14px;
      border: 2px solid var(--border);
      border-top-color: var(--accent);
      border-radius: 50%;
      animation: spin 0.6s linear infinite;
    }
    @keyframes spin { to { transform: rotate(360deg); } }

    .empty-state {
      color: var(--dim);
      text-align: center;
      padding: 40px;
    }

    /* Builder tab bar */
    .builder-tab-bar {
      display: flex;
      align-items: stretch;
      background: var(--bg);
      border-bottom: 1px solid var(--border);
      overflow-x: auto;
      scrollbar-width: none;
      min-height: 34px;
    }
    .builder-tab-bar::-webkit-scrollbar { display: none; }
    .btab {
      display: flex;
      align-items: center;
      gap: 5px;
      padding: 0 10px 0 8px;
      cursor: pointer;
      color: var(--dim);
      border-bottom: 2px solid transparent;
      border-right: 1px solid var(--border);
      white-space: nowrap;
      max-width: 160px;
      font-size: 11px;
      min-width: 80px;
      transition: background 0.1s;
    }
    .btab:hover { background: var(--surface2); color: var(--text); }
    .btab.active { background: var(--surface); color: var(--text); border-bottom-color: var(--accent); }
    .btab-label { overflow: hidden; text-overflow: ellipsis; flex: 1; }
    .btab-close {
      opacity: 0;
      font-size: 13px;
      line-height: 1;
      padding: 1px 3px;
      border-radius: 3px;
      flex-shrink: 0;
    }
    .btab:hover .btab-close { opacity: 0.5; }
    .btab-close:hover { opacity: 1 !important; background: var(--surface2); }
    .btab-new {
      padding: 0 12px;
      color: var(--dim);
      cursor: pointer;
      font-size: 18px;
      display: flex;
      align-items: center;
      flex-shrink: 0;
    }
    .btab-new:hover { color: var(--accent); }

    /* cURL panel */
    .curl-panel {
      width: 360px;
      flex-shrink: 0;
      background: var(--surface);
      border-left: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    .curl-panel header {
      padding: 12px 16px;
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      font-weight: 600;
    }
    .curl-panel pre {
      flex: 1;
      margin: 12px;
      max-height: none;
      font-size: 12px;
      overflow: auto;
      user-select: all;
    }

    /* Env bar */
    #env-bar {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: var(--surface);
      border-bottom: 1px solid var(--border);
      font-size: 12px;
    }
    #env-bar label { color: var(--dim); }
    #env-select { padding: 3px 8px; font-size: 12px; }

    .scrollable { overflow-y: auto; flex: 1; }

    .notice {
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 12px;
      margin-bottom: 8px;
    }
    .notice-error { background: #3a1e1e; color: var(--red); border: 1px solid var(--red); }
    .notice-success { background: #1e3a1e; color: var(--green); border: 1px solid var(--green); }

    /* Runner panel */
    #runner-panel {
      flex: 1;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    .runner-config {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border);
      background: var(--surface);
      display: flex;
      gap: 12px;
      align-items: flex-end;
      flex-wrap: wrap;
    }
    .runner-field { display: flex; flex-direction: column; gap: 4px; }
    .runner-field label { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.5px; }
    .runner-field select, .runner-field input { padding: 5px 8px; min-width: 130px; }
    .runner-results { flex: 1; overflow-y: auto; padding: 12px 16px; }
    .runner-row {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 7px 10px;
      border-radius: 4px;
      margin-bottom: 4px;
      background: var(--surface2);
      border-left: 3px solid var(--border);
      font-size: 12px;
    }
    .runner-row.pass { border-left-color: var(--green); }
    .runner-row.fail { border-left-color: var(--red); }
    .runner-row.error { border-left-color: var(--orange); }
    .runner-row.running { border-left-color: var(--accent); }
    .runner-assertion {
      font-size: 11px;
      padding: 2px 8px 2px 24px;
      color: var(--dim);
    }
    .runner-summary {
      padding: 12px 16px;
      border-top: 1px solid var(--border);
      display: flex;
      gap: 24px;
      align-items: center;
      background: var(--surface);
      font-size: 13px;
    }
    .progress-bar-wrap {
      flex: 1;
      background: var(--surface2);
      border-radius: 4px;
      height: 6px;
      overflow: hidden;
    }
    .progress-bar-fill {
      height: 100%;
      background: var(--accent);
      transition: width 0.3s;
    }

    /* Variables view */
    .vars-layout {
      display: flex;
      flex: 1;
      overflow: hidden;
    }
    .vars-env-list {
      width: 220px;
      min-width: 220px;
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    .vars-env-list header {
      padding: 10px 14px;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--dim);
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .vars-env-list .scrollable { flex: 1; }
    .env-list-row {
      padding: 8px 14px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
      border-left: 3px solid transparent;
      transition: background 0.1s;
      font-size: 12px;
    }
    .env-list-row:hover { background: var(--surface2); }
    .env-list-row.selected { border-left-color: var(--accent); background: var(--surface2); }
    .env-active-dot {
      width: 7px; height: 7px;
      border-radius: 50%;
      background: var(--green);
      flex-shrink: 0;
    }
    .vars-editor {
      flex: 1;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    .vars-editor header {
      padding: 10px 16px;
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      font-weight: 600;
    }
    .vars-table {
      flex: 1;
      overflow-y: auto;
      padding: 12px 16px;
    }
    .var-row {
      display: flex;
      gap: 6px;
      margin-bottom: 6px;
      align-items: center;
    }
    .var-row input { flex: 1; }
    .var-row .btn { padding: 4px 8px; font-size: 12px; flex-shrink: 0; }

    /* Auth modal */
    .auth-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.7);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1000;
      backdrop-filter: blur(4px);
    }
    .auth-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 36px 40px;
      width: 380px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .auth-card h1 {
      font-size: 20px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 4px;
    }
    .auth-card h2 {
      font-size: 13px;
      color: var(--dim);
      font-weight: 400;
    }
    .auth-field {
      display: flex;
      flex-direction: column;
      gap: 5px;
    }
    .auth-field label { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.5px; }
    .auth-field input { width: 100%; padding: 8px 12px; font-size: 13px; }
    .auth-toggle { font-size: 12px; color: var(--dim); text-align: center; }
    .auth-toggle span { color: var(--accent); cursor: pointer; text-decoration: underline; }

    /* User badge in sidebar */
    .user-badge {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 16px;
      border-top: 1px solid var(--border);
      background: var(--surface);
    }
    .user-avatar {
      width: 26px; height: 26px;
      border-radius: 50%;
      background: var(--accent);
      color: var(--bg);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      flex-shrink: 0;
    }
    .user-name { flex: 1; font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }