/* ---- Layout ---- */
    .layout {
      display: flex;
      flex: 1;
      overflow: hidden;
    }

    /* ---- Sidebar ---- */
    .sidebar {
      width: 210px;
      min-width: 210px;
      background: var(--bg-sidebar);
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      min-height: 0;
      overflow: hidden;
      transition: width 0.2s ease, min-width 0.2s ease, border-color 0.2s;
    }

    .layout.sidebar-collapsed .sidebar {
      width: 52px;
      min-width: 52px;
    }

    .sidebar-collapse-btn {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      padding: 0;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--bg-toolbar);
      color: var(--text-dim);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: border-color 0.15s, color 0.15s, background 0.15s;
    }

    .sidebar-collapse-btn:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: var(--accent-dim);
    }

    .sidebar-collapse-btn:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    .sidebar-collapse-ico {
      width: 16px;
      height: 16px;
      display: block;
    }

    .sidebar-collapse-ico-restore {
      display: none;
    }

    .layout.sidebar-collapsed .sidebar-collapse-ico-restore {
      display: block;
    }

    .layout.sidebar-collapsed .sidebar-collapse-ico-narrow {
      display: none;
    }

    #cam-list {
      flex: 1;
      min-height: 0;
      overflow-y: auto;
    }

    .sidebar-footer {
      flex-shrink: 0;
      padding: 10px 12px 12px;
      border-top: 1px solid var(--border);
      background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.2));
    }

    .sidebar-info-btn {
      display: inline-flex;
      align-items: center;
      justify-content: flex-start;
      gap: 8px;
      width: 100%;
      padding: 8px 10px;
      border-radius: 10px;
      border: 1px solid var(--border);
      background: var(--bg-toolbar);
      color: var(--text-dim);
      font-size: 11px;
      font-weight: 500;
      font-family: inherit;
      line-height: 1.2;
      cursor: pointer;
      transition: color 0.15s, border-color 0.15s, background 0.15s, box-shadow 0.15s;
    }

    .sidebar-info-btn:hover {
      color: var(--accent);
      border-color: rgba(0, 184, 148, 0.45);
      background: var(--accent-dim);
      box-shadow: 0 0 0 1px rgba(0, 184, 148, 0.12);
    }

    .sidebar-info-btn:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    .sidebar-info-icon {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: rgba(0, 184, 148, 0.12);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .sidebar-info-icon svg {
      width: 12px;
      height: 12px;
      display: block;
    }

    .sidebar-header {
      padding: 10px 10px 8px 12px;
      font-size: 12px;
      font-weight: 600;
      color: var(--text-dim);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
    }

    .sidebar-header-main {
      flex: 1;
      min-width: 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 6px;
    }

    .layout.sidebar-collapsed .sidebar-header {
      justify-content: center;
      padding: 10px 6px 8px;
    }

    .layout.sidebar-collapsed .sidebar-header-main {
      display: none;
    }

    .layout.sidebar-collapsed .site-group {
      display: none;
    }

    .layout.sidebar-collapsed .cam-status-btn,
    .layout.sidebar-collapsed .cam-label {
      display: none;
    }

    .layout.sidebar-collapsed .cam-item {
      padding: 9px 8px;
      justify-content: center;
      gap: 0;
    }

    .layout.sidebar-collapsed .cam-item.selected {
      padding-left: 5px;
    }

    .layout.sidebar-collapsed .sidebar-info-text {
      display: none;
    }

    .layout.sidebar-collapsed .sidebar-info-btn {
      justify-content: center;
      padding: 8px 6px;
    }

    .layout.sidebar-collapsed .sidebar-footer {
      padding: 8px 6px 10px;
    }

    .sidebar-header #cam-count {
      background: var(--accent-dim);
      color: var(--accent);
      padding: 1px 7px;
      border-radius: 10px;
      font-size: 11px;
    }

    .site-group {
      padding: 4px 14px 6px;
      font-size: 12px;
      color: var(--text-dim);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .site-icon {
      width: 14px;
      height: 14px;
      border-radius: 3px;
      background: var(--accent-dim);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 9px;
      color: var(--accent);
    }

    .cam-item {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 9px 14px 9px 28px;
      cursor: pointer;
      transition: background 0.15s;
      font-size: 13px;
      position: relative;
    }

    .cam-item:hover {
      background: rgba(255, 255, 255, 0.04);
    }

    .cam-item.selected {
      background: var(--accent-dim);
      border-left: 3px solid var(--accent);
      padding-left: 25px;
    }

    .cam-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      flex-shrink: 0;
    }

    .cam-dot.offline {
      background: #666;
    }

    .cam-status-btn {
      flex-shrink: 0;
      border: 1px solid transparent;
      font-size: 10px;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 999px;
      cursor: default;
      font-family: inherit;
      line-height: 1.2;
      transition: opacity 0.15s;
    }

    .cam-status-btn.online {
      background: var(--accent-dim);
      color: var(--accent);
      border-color: rgba(0, 184, 148, 0.45);
    }

    .cam-status-btn.offline {
      background: rgba(80, 80, 100, 0.45);
      color: var(--text-dim);
      border-color: var(--border);
    }

    .cam-label {
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      min-width: 0;
      flex: 1;
    }

    /* ---- Main View ---- */
    .main-view {
      flex: 1;
      display: flex;
      flex-direction: column;
      background: #000;
      position: relative;
      min-height: 0;
    }