:root {
  --gold:          #CBB682;
  --bg:            #181510;
  --muted:         #6B6456;
  --border:        #333333;
  --surface:       #1a1a1a;
  --text:          #FFFFFF;
  --text-soft:     #E5DDC9;
  --ok:            #7CA98C;
  --gold-soft:     #E9DBBD;
  --danger:        #D88978;
  --danger-border: #BA6E5E;
  --gold-dim:      #5A513D;
  --danger-dim:    #7A4036;
  --border-soft:   #3A352B;
  --surface-alt:   #242016;
  --muted-2:       #9A917E;
  --ok-border:     #4E6956;
  --ok-bg:         #182019;
  --ok-text:       #8F9B8F;
  --ok-text-dim:   #7F897F;
  --text-dim:      #B8B09F;
  --text-soft-2:   #D6CEBC;
  --border-dim:    #2C2923;
}

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

/* --- Navegacao lateral --- */
.sidebar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
  gap: 4px;
}
.sidebar-brand {
  color: var(--gold); font-size: 19px; font-weight: 700;
  letter-spacing: -.02em; padding: 4px 10px 14px;
}
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }
.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 12px; border-radius: 8px;
  color: var(--text-soft); text-decoration: none; font-size: 14px;
  border: 1px solid transparent; transition: border-color .15s, background .15s;
}
.sidebar-link:hover { background: var(--bg); border-color: var(--border); }
.sidebar-link.active { background: var(--gold); color: var(--bg); font-weight: 700; }
.sidebar-icon { font-size: 15px; line-height: 1; }
.sidebar-admin, .sidebar-openai, .sidebar-claude { color: var(--text-soft); }
.sidebar-connection { margin-left: auto; display: inline-flex; align-items: center; gap: 5px; color: var(--ok); font-size: 10px; font-weight: 700; letter-spacing: .02em; }
.sidebar-connection-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px var(--ok-bg); }
.sidebar-link.active .sidebar-connection { color: var(--bg); }
.sidebar-link.active .sidebar-connection-dot { background: var(--bg); box-shadow: 0 0 0 3px rgba(0,0,0,.12); }
.sidebar-reset { color: var(--danger); }
.sidebar-ext { margin-left: auto; color: var(--muted); font-size: 12px; }
.sidebar-foot { margin-top: auto; border-top: 1px solid var(--border); padding-top: 12px; }
.sidebar-model-switcher { display: flex; flex-direction: column; gap: 8px; margin: 0 0 12px; padding: 10px; border: 1px solid var(--border-soft); border-radius: 9px; background: var(--bg); }
.sidebar-model-title { color: var(--gold); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.sidebar-provider-options { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.sidebar-provider-options label { display: flex; align-items: center; gap: 5px; color: var(--text-soft); font-size: 11px; cursor: pointer; }
.sidebar-provider-options input { accent-color: var(--gold); }
.sidebar-model-label { display: flex; flex-direction: column; gap: 4px; color: var(--muted-2); font-size: 10px; font-weight: 700; }
.sidebar-model-label select { width: 100%; min-width: 0; padding: 7px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text-soft); font-size: 11px; }
.sidebar-model-save { min-height: 34px; border: 1px solid var(--gold); border-radius: 6px; background: var(--gold); color: var(--bg); font-size: 11px; font-weight: 800; cursor: pointer; }
.sidebar-model-save:hover { opacity: .9; }
.sidebar-user { color: var(--muted); font-size: 13px; padding: 2px 12px 8px; }
.sidebar-logout { color: var(--muted); }

@media (min-width: 900px) {
  .sidebar {
    position: fixed; top: 16px; left: 16px; bottom: 16px;
    width: 218px; overflow-y: auto; margin: 0;
  }
  /* body.has-sidebar (0,1,1) vence o body (0,0,1) do CSS de cada pagina */
  body.has-sidebar { padding-left: 258px; }
}
@media (max-width: 899px) {
  /* Grade 2x2: com flex-wrap os rotulos de larguras diferentes
     quebravam em linhas irregulares. */
  .sidebar { margin-bottom: 16px; padding: 12px; gap: 10px; }
  .sidebar-brand { padding: 2px 2px 0; font-size: 17px; }
  .sidebar-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  /* Em grade cada item precisa de contorno proprio; na lista vertical
     do desktop a borda transparente basta. */
  .sidebar-link {
    justify-content: center; text-align: center; padding: 11px 10px;
    border-color: var(--border); background: var(--bg);
  }
  .sidebar-link.active { border-color: var(--gold); background: var(--gold); }
  .sidebar-logout { background: none; border-color: transparent; }
  .sidebar-foot {
    margin-top: 0; padding-top: 10px; display: flex;
    align-items: center; justify-content: space-between; gap: 8px;
    flex-wrap: wrap;
  }
  .sidebar-model-switcher { flex: 1 0 100%; margin-bottom: 4px; }
  .sidebar-model-label select, .sidebar-model-save { font-size: 16px; }
  .sidebar-foot .sidebar-link { flex: 0 0 auto; }
  .sidebar-user { padding: 0; }
  .sidebar-logout { padding: 8px 12px; }
}

/* Indicador de foco por teclado - antes nao havia nenhum. */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}