:root {
  --fundo: #0f1117;
  --carta: #171a23;
  --side: #12141c;
  --borda: #262b38;
  --texto: #e6e8ee;
  --suave: #9aa3b5;
  --marca: #4f9cf9;
  --ok: #3fb950;
  --erro: #f85149;
  --alerta: #d29922;
  --larg-side: 232px;
}
@media (prefers-color-scheme: light) {
  :root {
    --fundo: #f6f7f9;
    --carta: #ffffff;
    --side: #ffffff;
    --borda: #e2e5ea;
    --texto: #1a1d24;
    --suave: #5c6472;
    --marca: #1f6feb;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font: 15px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

h1 { font-size: 1.05rem; margin: 0; letter-spacing: -0.01em; }
.ponto { color: var(--marca); }
.sub { margin: .2rem 0 0; color: var(--suave); font-size: .82rem; }

/* ── login ─────────────────────────────────────────────────────────────── */
.tela-login {
  display: grid; place-items: center; min-height: 100vh; padding: 1.5rem;
}
.cartao-login {
  width: 100%; max-width: 340px; padding: 2rem 1.75rem;
  background: var(--carta); border: 1px solid var(--borda); border-radius: 12px;
}
.cartao-login label { display: block; margin-top: 1.1rem; }
.cartao-login .acao { width: 100%; margin-top: 1.5rem; }
.erro-login { color: var(--erro); font-size: .85rem; min-height: 1.2rem; margin: .8rem 0 0; }

/* ── sidebar ───────────────────────────────────────────────────────────── */
.tem-sidebar { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--larg-side); flex-shrink: 0;
  background: var(--side); border-right: 1px solid var(--borda);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.marca { padding: 1.25rem 1.15rem 1rem; border-bottom: 1px solid var(--borda); }
.marca .pill { margin-top: .6rem; }

.pill {
  display: inline-block; padding: .22rem .6rem; border-radius: 999px;
  border: 1px solid var(--borda); font-size: .72rem; color: var(--suave);
}
.pill.ok { color: var(--ok); border-color: var(--ok); }
.pill.erro { color: var(--erro); border-color: var(--erro); }

#menu { flex: 1; padding: .75rem .6rem; overflow-y: auto; }
.grupo {
  margin: 1rem .55rem .35rem; font-size: .68rem; text-transform: uppercase;
  letter-spacing: .07em; color: var(--suave); opacity: .75;
}
.grupo:first-child { margin-top: .2rem; }

.item {
  display: flex; align-items: center; gap: .6rem; width: 100%;
  background: none; border: none; border-radius: 7px;
  padding: .5rem .55rem; margin-bottom: .1rem;
  color: var(--suave); font: inherit; font-size: .89rem;
  cursor: pointer; text-align: left;
}
.item span { width: 1.1rem; text-align: center; opacity: .85; }
.item:hover { background: color-mix(in srgb, var(--marca) 10%, transparent); color: var(--texto); }
.item.ativo { background: color-mix(in srgb, var(--marca) 16%, transparent); color: var(--marca); }

.rodape-side {
  padding: .85rem 1.15rem; border-top: 1px solid var(--borda);
  display: flex; justify-content: space-between; align-items: center;
  font-size: .78rem; color: var(--suave); gap: .5rem;
}
.sair {
  background: none; border: 1px solid var(--borda); border-radius: 6px;
  color: var(--suave); font: inherit; font-size: .75rem;
  padding: .2rem .55rem; cursor: pointer;
}
.sair:hover { color: var(--erro); border-color: var(--erro); }

.abre-menu {
  display: none; position: fixed; top: .7rem; left: .7rem; z-index: 30;
  background: var(--carta); border: 1px solid var(--borda); border-radius: 7px;
  color: var(--texto); font-size: 1.1rem; padding: .3rem .6rem; cursor: pointer;
}

/* ── conteúdo ──────────────────────────────────────────────────────────── */
.conteudo { flex: 1; padding: 2rem; max-width: 900px; }
.painel { display: none; }
.painel.ativo { display: block; }
.painel h2 { margin: 0 0 .5rem; font-size: 1.1rem; }
.nota { color: var(--suave); font-size: .88rem; margin: 0 0 1.1rem; }
code {
  background: var(--carta); border: 1px solid var(--borda); border-radius: 4px;
  padding: .05rem .3rem; font-size: .85em;
}

.grade {
  display: grid; gap: .9rem; margin-bottom: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
label { display: block; font-size: .8rem; color: var(--suave); }
label.largo { margin-bottom: 1rem; }
label small { opacity: .7; }
input, select, textarea {
  width: 100%; margin-top: .35rem; padding: .55rem .7rem;
  background: var(--carta); color: var(--texto);
  border: 1px solid var(--borda); border-radius: 7px;
  font: inherit; font-size: .92rem;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--marca); }
textarea { resize: vertical; }

.linha-botoes { display: flex; gap: .5rem; flex-wrap: wrap; }
.acao {
  background: var(--marca); color: #fff; border: none;
  padding: .6rem 1.2rem; border-radius: 7px; font: inherit; font-weight: 500; cursor: pointer;
}
.acao:hover:not(:disabled) { filter: brightness(1.1); }
.acao:disabled { opacity: .45; cursor: not-allowed; }
.acao.secundaria { background: transparent; color: var(--suave); border: 1px solid var(--borda); }

.saida {
  margin-top: 1rem; padding: .85rem;
  background: var(--carta); border: 1px solid var(--borda); border-radius: 7px;
  font: 12.5px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--suave); white-space: pre-wrap; word-break: break-word;
  max-height: 340px; overflow: auto;
}
.saida:empty { display: none; }

.aviso {
  padding: .8rem 1rem; margin-bottom: 1.2rem; border-radius: 7px;
  background: color-mix(in srgb, var(--alerta) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--alerta) 40%, transparent);
  font-size: .87rem;
}
.aviso[hidden] { display: none; }

.tabela { width: 100%; border-collapse: collapse; font-size: .9rem; }
.tabela th, .tabela td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--borda); }
.tabela th { color: var(--suave); font-weight: 500; font-size: .8rem; }

/* ── mobile ────────────────────────────────────────────────────────────── */
@media (max-width: 760px) {
  .abre-menu { display: block; }
  .sidebar {
    position: fixed; z-index: 25; height: 100vh;
    transform: translateX(-100%); transition: transform .18s ease;
  }
  .sidebar.aberta { transform: translateX(0); }
  .conteudo { padding: 3.5rem 1.15rem 2rem; }
}

/* ── discador ──────────────────────────────────────────────────────────── */
.modal-fundo {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(0,0,0,.55); backdrop-filter: blur(3px);
  display: grid; place-items: center; padding: 1rem;
}
.modal-fundo[hidden] { display: none; }

.fone {
  position: relative; width: 100%; max-width: 310px;
  background: var(--carta); border: 1px solid var(--borda);
  border-radius: 20px; padding: 1.25rem 1.15rem 1.4rem;
  box-shadow: 0 18px 50px rgba(0,0,0,.4);
}
.fechar-fone {
  position: absolute; top: .6rem; right: .7rem;
  background: none; border: none; color: var(--suave);
  font-size: .95rem; cursor: pointer; padding: .25rem .4rem; line-height: 1;
}
.fechar-fone:hover { color: var(--texto); }

.visor { text-align: center; padding: .5rem 0 1.1rem; min-height: 68px; }
.numero {
  font-size: 1.7rem; font-weight: 500; letter-spacing: .02em;
  min-height: 2.1rem; word-break: break-all; line-height: 1.2;
}
.numero:empty::before { content: '—'; color: var(--suave); opacity: .35; }
.visor .estado { font-size: .78rem; color: var(--suave); margin-top: .3rem; }
.visor .estado.ativa { color: var(--ok); }
.visor .estado.erro { color: var(--erro); }

.teclas { display: grid; grid-template-columns: repeat(3, 1fr); gap: .55rem; }
.teclas button {
  aspect-ratio: 1 / 1; border-radius: 50%;
  background: color-mix(in srgb, var(--texto) 7%, transparent);
  border: 1px solid var(--borda); color: var(--texto);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .05rem; cursor: pointer; font: inherit; user-select: none;
  transition: transform .06s ease, background .12s ease;
}
.teclas button:active { transform: scale(.93); background: color-mix(in srgb, var(--marca) 28%, transparent); }
.teclas b { font-size: 1.35rem; font-weight: 500; line-height: 1; }
.teclas span { font-size: .55rem; letter-spacing: .08em; color: var(--suave); }

.atalhos { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .9rem; justify-content: center; }
.atalhos button {
  background: none; border: 1px solid var(--borda); border-radius: 999px;
  color: var(--suave); font: inherit; font-size: .72rem;
  padding: .25rem .6rem; cursor: pointer;
}
.atalhos button:hover { color: var(--marca); border-color: var(--marca); }

.barra-fone, .entrante {
  display: flex; align-items: center; justify-content: center;
  gap: 1.4rem; margin-top: 1.15rem;
}
.entrante[hidden] { display: none; }
.redondo {
  width: 56px; height: 56px; border-radius: 50%; border: none;
  font-size: 1.3rem; cursor: pointer; color: #fff;
  display: grid; place-items: center;
  transition: transform .06s ease, filter .12s ease;
}
.redondo:active { transform: scale(.92); }
.redondo:hover:not(:disabled) { filter: brightness(1.12); }
.redondo[hidden] { display: none; }
.redondo.chamar { background: #2ea043; }
.redondo.desligar { background: #da3633; }
.redondo.mudo { background: #6e7681; }
.redondo.mudo.on { background: var(--alerta); }
.redondo.apagar {
  background: none; color: var(--suave); font-size: 1.15rem;
  width: 44px; height: 44px;
}
.redondo.apagar:hover { color: var(--texto); }
.redondo:disabled { opacity: .4; cursor: not-allowed; }
.dica-fone {
  margin: .75rem 0 0; text-align: center;
  font-size: .68rem; color: var(--suave); opacity: .8; line-height: 1.35;
}