:root {
      --bg: #121212;
      --panel: #1e1e1e;
      --input: #2a2a2a;
      --txt: #eee;
      --dim: #999;
      --acc: #6366f1;
      --border: #333
    }

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

  body {
      font-family: system-ui, sans-serif;
      background: var(--bg);
      color: var(--txt);
      height: 100dvh;
      display: flex;
      flex-direction: column
  }

  .auth-gate {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--bg);
  }

  .auth-gate.on { display: flex; }

  .auth-gate-card {
    width: min(420px, 100%);
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--panel);
    text-align: center;
  }

  .auth-gate-card p { color: var(--dim); line-height: 1.5; }

    header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 14px;
      background: var(--panel);
      border-bottom: 1px solid var(--border)
    }

    .context-meter {
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--dim);
      font-size: .72rem;
      white-space: nowrap;
    }

    .context-meter-bar {
      width: 54px;
      height: 5px;
      overflow: hidden;
      border-radius: 4px;
      background: var(--input);
    }

    .context-meter-fill {
      display: block;
      width: 0;
      height: 100%;
      background: var(--acc);
      transition: width .2s ease, background-color .2s ease;
    }

    .context-meter.warn .context-meter-fill {
      background: #eab308;
    }

    .context-meter.danger .context-meter-fill {
      background: #ef4444;
    }

    .hbtn {
      background: none;
      border: none;
      color: var(--txt);
      font-size: 1.1rem;
      padding: 6px 8px;
      cursor: pointer;
      border-radius: 6px
    }

    #views {
      flex: 1;
      display: flex;
      flex-direction: column;
      overflow: hidden
    }

    .view {
      display: none;
      flex: 1;
      flex-direction: column;
      overflow: hidden
    }

    .view.on {
      display: flex
    }

    #chat {
      flex: 1;
      overflow-y: auto;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 10px
    }

    .msg {
      position: relative;
      max-width: 85%;
      padding: 10px 14px 36px;
      border-radius: 14px;
      white-space: pre-wrap;
      line-height: 1.45;
      font-size: .95rem;
      word-wrap: break-word
    }

    .user {
      align-self: flex-end;
      background: var(--acc);
      border-bottom-right-radius: 4px;
      padding-right: 48px;
    }

    .ai {
      align-self: flex-start;
      background: var(--panel);
      border: 1px solid var(--border);
      border-bottom-left-radius: 4px;
      padding-right: 48px;
    }

    .sys {
      align-self: center;
      color: var(--dim);
      font-size: .75rem;
      padding: 4px 8px
    }

    .in {
      display: flex;
      gap: 8px;
      padding: 10px 12px;
      background: var(--panel);
      border-top: 1px solid var(--border);
      align-items: flex-end
    }

    #inp {
      flex: 1;
      background: var(--input);
      border: 1px solid var(--border);
      border-radius: 18px;
      color: var(--txt);
      padding: 10px 14px;
      resize: none;
      outline: none;
      max-height: 120px;
      font: inherit;
      font-size: .95rem
    }

    #send {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: none;
      background: var(--acc);
      color: #fff;
      font-size: 1.1rem;
      cursor: pointer;
      flex-shrink: 0
    }

    #send:disabled {
      opacity: .4
    }

    #stop {
      display: none;
      width: 44px;
      height: 44px;
      flex-shrink: 0;
      border: 1px solid #ef4444;
      border-radius: 50%;
      background: transparent;
      color: #ef4444;
      font-size: .95rem;
      cursor: pointer;
    }

    #stop.on {
      display: block;
    }

    nav {
      display: flex;
      background: var(--panel);
      border-top: 1px solid var(--border)
    }

    .nbtn {
      flex: 1;
      padding: 12px 0;
      background: none;
      border: none;
      color: var(--dim);
      font-size: .95rem;
      cursor: pointer
    }

    .nbtn.on {
      color: var(--txt)
    }

    .nbtn.plus {
      flex: 0 0 64px;
      font-size: 1.3rem
    }

    .frow {
      display: flex;
      gap: 6px;
      padding: 10px 12px 0
    }

    /* Стили для контейнеров поиска */
    .chat-search-container,
    .file-search-container {
      display: none;
      width: 100%;
      padding: 8px 12px;
      background: var(--panel);
      border-bottom: 1px solid var(--border);
      box-sizing: border-box;
    }

    .chat-search-container.on,
    .file-search-container.on {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .frow input {
      flex: 1;
      background: var(--input);
      border: 1px solid var(--border);
      border-radius: 8px;
      color: var(--txt);
      padding: 9px;
      outline: none;
      font-size: .9rem
    }

    #f-list,
    #f-results {
      overflow-y: auto;
      padding: 10px 12px
    }

    .fitem {
      padding: 10px 12px;
      border: 1px solid var(--border);
      border-radius: 10px;
      margin-bottom: 8px;
      cursor: pointer;
      background: var(--panel)
    }

    .fitem b {
      display: block;
      font-size: .9rem
    }

    .fitem span {
      display: block;
      color: var(--dim);
      font-size: .75rem;
      margin-top: 2px;
      white-space: pre-wrap
    }

    .file-drive-link {
      float: right;
      color: var(--accent);
      font-size: 1rem;
      text-decoration: none;
      padding: 2px 4px;
    }

    .ovl {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, .75);
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 50
    }

    .ovl.on {
      display: flex
    }

    .modal {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 20px;
      width: 92%;
      max-width: 420px;
      max-height: 85dvh;
      overflow-y: auto
    }

    .modal h2 {
      font-size: 1.1rem;
      margin-bottom: 14px
    }

    .settings-tabs {
      display: flex;
      gap: 6px;
      overflow-x: auto;
      margin: 0 -2px 14px;
      padding: 2px;
      scrollbar-width: thin;
    }

    .settings-tab {
      flex: 0 0 auto;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--input);
      color: var(--dim);
      padding: 8px 10px;
      cursor: pointer;
      font: inherit;
      font-size: .82rem;
    }

    .settings-tab:hover,
    .settings-tab.on {
      border-color: var(--accent);
      color: var(--txt);
      background: var(--input);
    }

    .settings-section {
      display: none;
    }

    .settings-section.on {
      display: block;
    }

    .fg {
      margin-bottom: 12px
    }

    .fg label {
      display: block;
      font-size: .8rem;
      color: var(--dim);
      margin-bottom: 4px
    }

    .fg input,
    .fg select {
      width: 100%;
      background: var(--input);
      border: 1px solid var(--border);
      border-radius: 8px;
      color: var(--txt);
      padding: 9px;
      outline: none;
      font-size: .9rem
    }

    .row {
      display: flex;
      gap: 6px;
      margin-top: 6px
    }

    .row input {
      flex: 1;
      background: var(--input);
      border: 1px solid var(--border);
      border-radius: 8px;
      color: var(--txt);
      padding: 8px;
      outline: none;
      font-size: .85rem
    }

    .row .btn {
      flex: 1;
      width: auto;
    }

    .row3 {
      display: flex;
      gap: 6px
    }

    .row3 .fg {
      flex: 1
    }

    .exercise-card {
      margin-bottom: 10px;
      padding: 10px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--bg);
    }

    .exercise-card-head,
    .set-row {
      display: flex;
      gap: 6px;
      align-items: center;
    }

    .exercise-card-head input,
    .set-row input {
      min-width: 0;
      flex: 1;
      background: var(--input);
      border: 1px solid var(--border);
      border-radius: 6px;
      color: var(--txt);
      padding: 7px;
      outline: none;
      font: inherit;
      font-size: .85rem;
    }

    .set-row {
      margin-top: 6px;
    }

    .set-number {
      width: 24px;
      color: var(--dim);
      text-align: center;
      font-size: .8rem;
    }

    .sbtn {
      border: none;
      border-radius: 8px;
      background: var(--input);
      color: var(--txt);
      padding: 8px 12px;
      cursor: pointer;
      font-size: .9rem
    }

    .btn {
      width: 100%;
      padding: 11px;
      border: none;
      border-radius: 8px;
      background: var(--acc);
      color: #fff;
      font-weight: 600;
      cursor: pointer;
      font-size: .95rem
    }

    .btn.sec {
      background: var(--input);
      color: var(--txt)
    }

    #viewer .vbox {
      background: var(--panel);
      width: 100%;
      height: 100%;
      display: flex;
      flex-direction: column
    }

    .vhead {
      display: flex;
      gap: 8px;
      align-items: center;
      padding: 10px 12px;
      border-bottom: 1px solid var(--border)
    }

    #v-pre {
      flex: 1;
      overflow: auto;
      padding: 12px;
      white-space: pre-wrap;
      font-family: ui-monospace, monospace;
      font-size: .85rem;
      line-height: 1.4
    }

    #v-ta {
      flex: 1;
      background: var(--bg);
      color: var(--txt);
      border: none;
      outline: none;
      padding: 12px;
      font-family: ui-monospace, monospace;
      font-size: .85rem;
      resize: none
    }

    .vfoot {
      display: flex;
      gap: 8px;
      padding: 10px 12px;
      border-top: 1px solid var(--border)
    }

    #sheet {
      justify-content: flex-end
    }

    .sbox {
      background: var(--panel);
      width: 100%;
      max-width: 480px;
      border-radius: 16px 16px 0 0;
      padding: 16px;
      max-height: 85dvh;
      overflow-y: auto
    }

    #toast {
      position: fixed;
      left: 50%;
      bottom: 70px;
      transform: translateX(-50%);
      background: var(--acc);
      color: #fff;
      padding: 8px 16px;
      border-radius: 20px;
      font-size: .85rem;
      opacity: 0;
      pointer-events: none;
      transition: opacity .2s;
      z-index: 200;
      max-width: 90%;
      text-align: center
    }

    #toast.on {
      opacity: 1
    }

    .error-panel {
      position: fixed;
      top: 12px;
      right: 12px;
      width: min(560px, calc(100% - 24px));
      max-height: min(70vh, 520px);
      overflow: auto;
      display: none;
      padding: 14px;
      background: #3a1518;
      color: #ffe4e6;
      border: 1px solid #ef4444;
      border-radius: 12px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
      z-index: 300;
    }

    .error-panel.on {
      display: block;
    }

    .error-panel-head,
    .error-panel-actions {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .error-panel-head {
      justify-content: space-between;
    }

    .error-panel-close {
      border: 0;
      background: transparent;
      color: inherit;
      cursor: pointer;
      font-size: 1.1rem;
    }

    #error-panel-details {
      margin: 10px 0;
      white-space: pre-wrap;
      overflow-wrap: anywhere;
      font: .82rem/1.45 Consolas, monospace;
    }

    button:disabled,
    select:disabled {
      opacity: .45;
      cursor: not-allowed;
    }

    .msg-actions {
      position: absolute;
      bottom: 8px;
      right: 8px;
      display: flex;
      gap: 4px;
      opacity: 1;
    }

    .msg-actions button {
      background: rgba(0, 0, 0, 0.3);
      border: none;
      color: var(--txt);
      font-size: 0.9rem;
      cursor: pointer;
      padding: 6px 8px;
      border-radius: 6px;
      line-height: 1;
      min-width: 32px;
      text-align: center;
    }

    .msg-actions button:hover {
      background: var(--acc);
      color: #fff;
    }

    .reasoning-block {
      margin-bottom: 8px;
      color: var(--dim);
      font-size: .82rem;
      border-bottom: 1px solid var(--border);
      padding-bottom: 6px;
    }

    .reasoning-block summary {
      cursor: pointer;
      color: var(--dim);
    }

    .reasoning-block pre {
      margin-top: 6px;
      white-space: pre-wrap;
      font: inherit;
      line-height: 1.35;
    }

    .sources-block {
      margin-top: 8px;
      color: var(--dim);
      font-size: .78rem;
      border-top: 1px solid var(--border);
      padding-top: 6px;
    }

    .sources-block summary {
      cursor: pointer;
      color: var(--dim);
    }

    .sources-block ul {
      margin: 6px 0 0 18px;
    }

    @media (max-width: 600px) {
      header {
        flex-wrap: wrap;
        gap: 4px;
        padding: 7px 8px;
      }

      header>div:first-child,
      header>span {
        width: 100%;
      }

      header>div:first-child {
        gap: 4px !important;
      }

      header>span {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 2px;
        overflow-x: auto;
      }

      #chat-select {
        min-width: 0 !important;
        flex: 1;
        max-width: none;
      }

      .hbtn {
        padding: 5px 6px;
        font-size: 1rem;
      }

      .context-meter {
        gap: 3px;
        font-size: .65rem;
      }

      .context-meter-bar {
        width: 38px;
      }

      .in {
        gap: 5px;
        padding: 7px 8px;
      }

      #inp {
        min-width: 0;
      }

      #send,
      #stop,
      #img-btn {
        width: 40px !important;
        height: 40px !important;
      }

      .row3 {
        flex-wrap: wrap;
      }

      .row3 .fg {
        min-width: calc(50% - 3px);
      }

      .vhead {
        padding: 8px;
        gap: 4px;
      }

      .vhead b {
        min-width: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      .modal {
        width: calc(100% - 16px);
        padding: 15px;
      }
    }