/* =====================================================================
   Painel administrativo — mesma linguagem visual da tela de saída.
   Tema: data-theme="light|dark" no <html> (botão) ou, sem escolha, segue o sistema.
   ===================================================================== */
:root {
  --bg: #eef1f5; --surface: #ffffff; --surface-2: #f6f8fa; --border: #dfe3e8;
  --text: #0f172a; --muted: #64748b; --brand: #0f172a;
  --primary: #16a34a; --primary-ink: #ffffff; --primary-soft: #dcfce7; --primary-text: #15803d;
  --danger: #dc2626; --danger-soft: #fee2e2; --warn: #b45309; --warn-soft: #fef3c7;
  --info: #2563eb; --info-soft: #dbeafe;
  --focus: #2563eb; --radius: 14px; --shadow: 0 1px 2px rgba(15,23,42,.06), 0 4px 16px rgba(15,23,42,.06);
  --barra: #16a34a; --barra-fundo: #e2e8f0;
  --login-bg: radial-gradient(ellipse at top, #ffffff 0%, #e2e8f0 70%);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0b1120; --surface: #111827; --surface-2: #1a2333; --border: #273244;
  --text: #e5e7eb; --muted: #94a3b8; --brand: #020617;
  --primary-soft: #14532d; --primary-text: #4ade80; --danger-soft: #450a0a; --warn: #fbbf24; --warn-soft: #422006;
  --info: #60a5fa; --info-soft: #172554;
  --shadow: 0 1px 2px rgba(0,0,0,.4); --barra-fundo: #1e293b;
  --login-bg: radial-gradient(ellipse at top, #1e293b 0%, #020617 70%);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120; --surface: #111827; --surface-2: #1a2333; --border: #273244;
    --text: #e5e7eb; --muted: #94a3b8; --brand: #020617;
    --primary-soft: #14532d; --primary-text: #4ade80; --danger-soft: #450a0a; --warn: #fbbf24; --warn-soft: #422006;
    --info: #60a5fa; --info-soft: #172554;
    --shadow: 0 1px 2px rgba(0,0,0,.4); --barra-fundo: #1e293b;
    --login-bg: radial-gradient(ellipse at top, #1e293b 0%, #020617 70%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text);
       -webkit-font-smoothing: antialiased; font-size: 15px; line-height: 1.45; }
a { color: var(--info); }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
.num, .mono { font-variant-numeric: tabular-nums; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: .88em; }
.muted { color: var(--muted); }
.pequeno { font-size: .85rem; }
[hidden] { display: none !important; }

/* ---------- layout ---------- */
.app { display: grid; grid-template-columns: 248px minmax(0, 1fr); min-height: 100vh; }
.sidebar { background: var(--brand); color: #cbd5e1; display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.sidebar .logo { display: flex; align-items: center; gap: .6rem; color: #fff; font-weight: 700; font-size: 1.08rem; padding: 1.15rem 1.3rem; }
.sidebar .logo i { color: #4ade80; font-size: 1.35rem; }
.sidebar .logo small { display: block; color: #64748b; font-weight: 500; font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; padding: .4rem .7rem; }
.sidebar .rotulo-menu { color: #475569; font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 1rem .7rem .35rem; }
.sidebar .nav-link { display: flex; align-items: center; gap: .75rem; color: #cbd5e1; text-decoration: none; padding: .62rem .8rem;
                     border-radius: 10px; font-weight: 500; position: relative; transition: background .12s, color .12s; }
.sidebar .nav-link i { font-size: 1.05rem; width: 1.2rem; text-align: center; }
.sidebar .nav-link:hover { background: rgba(255,255,255,.06); color: #fff; }
.sidebar .nav-link.active { background: rgba(74,222,128,.12); color: #fff; }
.sidebar .nav-link.active::before { content: ""; position: absolute; left: -.7rem; top: .5rem; bottom: .5rem; width: 3px; border-radius: 0 3px 3px 0; background: #4ade80; }
.sidebar .nav-link.active i { color: #4ade80; }
.sidebar .nav-link .externo { margin-left: auto; font-size: .75rem; opacity: .6; }
.sidebar .rodape { margin-top: auto; border-top: 1px solid rgba(255,255,255,.07); padding: .9rem 1rem; display: flex; align-items: center; gap: .7rem; }
.sidebar .rodape .quem { min-width: 0; flex: 1; }
.sidebar .rodape .quem strong { display: block; color: #fff; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar .rodape .quem a { color: #94a3b8; font-size: .8rem; text-decoration: none; }
.sidebar .rodape .quem a:hover { color: #fff; }
.tema { background: transparent; color: #cbd5e1; border: 1px solid #334155; border-radius: 8px; width: 2.1rem; height: 2.1rem; display: grid; place-items: center; flex: none; }
.tema:hover { color: #fff; border-color: #64748b; }

.conteudo { padding: 1.5rem 2rem 3rem; min-width: 0; }
.cabecalho { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.4rem; }
.cabecalho h1 { margin: 0; font-size: 1.65rem; font-weight: 750; letter-spacing: -.01em; }
.cabecalho .sub { color: var(--muted); margin-top: .2rem; }
.cabecalho .acoes { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.relogio { text-align: right; line-height: 1.15; flex: none; padding-left: .4rem; }
.relogio strong { font-size: 1.05rem; }
.relogio span { display: block; color: var(--muted); font-size: .8rem; white-space: nowrap; }
.voltar-link { display: inline-flex; align-items: center; gap: .4rem; color: var(--muted); text-decoration: none; font-weight: 600; font-size: .9rem;
               margin-bottom: .45rem; padding: .2rem .55rem .2rem .35rem; margin-left: -.35rem; border-radius: 8px; transition: color .12s, background .12s; }
.voltar-link:hover { color: var(--text); background: var(--surface); }
.voltar-link i { transition: transform .12s; }
.voltar-link:hover i { transform: translateX(-3px); }

/* ---------- cartões ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-topo { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .9rem 1.2rem; border-bottom: 1px solid var(--border); }
.card-topo h2 { margin: 0; font-size: 1rem; font-weight: 650; display: flex; align-items: center; gap: .5rem; }
.card-topo h2 i { color: var(--muted); }
.card-corpo { padding: 1.2rem; }
.grade { display: grid; gap: 1.1rem; }
.grade-kpi { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grade-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grade-principal { grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); align-items: start; }
.pilha { display: flex; flex-direction: column; gap: 1.1rem; }
.mb { margin-bottom: 1.1rem; }

.kpi { padding: 1.1rem 1.2rem; display: flex; gap: .9rem; align-items: flex-start; }
.kpi .icone { width: 2.6rem; height: 2.6rem; border-radius: 11px; display: grid; place-items: center; font-size: 1.2rem; flex: none;
              background: var(--surface-2); color: var(--muted); }
.kpi .icone.verde { background: var(--primary-soft); color: var(--primary-text); }
.kpi .icone.azul { background: var(--info-soft); color: var(--info); }
.kpi .icone.ambar { background: var(--warn-soft); color: var(--warn); }
.kpi .rotulo { color: var(--muted); font-size: .82rem; font-weight: 600; }
.kpi .valor { font-size: 2rem; font-weight: 800; line-height: 1.1; margin-top: .1rem; }
.kpi .valor.medio { font-size: 1.45rem; }
.kpi .detalhe { color: var(--muted); font-size: .82rem; margin-top: .15rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.delta { font-weight: 700; font-size: .78rem; border-radius: 999px; padding: .05rem .45rem; margin-left: .25rem; }
.delta.sobe { background: var(--primary-soft); color: var(--primary-text); }
.delta.desce { background: var(--danger-soft); color: var(--danger); }
.delta.igual { background: var(--surface-2); color: var(--muted); }

.ao-vivo { display: inline-flex; align-items: center; gap: .45rem; color: var(--muted); font-size: .85rem; }
.ao-vivo .pulso { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); animation: pulso 1.8s infinite; }
@keyframes pulso { 0% { box-shadow: 0 0 0 0 rgba(22,163,74,.5); } 70% { box-shadow: 0 0 0 8px rgba(22,163,74,0); } 100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); } }

/* ---------- botões ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; border-radius: 10px; padding: .62rem 1rem; font-weight: 650;
       font-size: .92rem; text-decoration: none; border: 1px solid transparent; line-height: 1.2; white-space: nowrap; transition: filter .12s, background .12s; }
.btn-primario { background: var(--primary); color: var(--primary-ink); box-shadow: 0 3px 10px rgba(22,163,74,.25); }
.btn-primario:hover { filter: brightness(1.06); }
.btn-primario:disabled { background: var(--border); color: var(--muted); box-shadow: none; cursor: not-allowed; }
.btn-sec { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-sec:hover { background: var(--surface-2); }
.btn-fantasma { background: transparent; color: var(--muted); }
.btn-fantasma:hover { color: var(--text); background: var(--surface-2); }
.btn-grande { padding: .85rem 1.3rem; font-size: 1rem; }
.btn-icone { width: 2.2rem; height: 2.2rem; padding: 0; border-radius: 9px; background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-icone:hover { color: var(--text); background: var(--surface-2); }
.girando { display: inline-block; width: 1em; height: 1em; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: girar .7s linear infinite; }
@keyframes girar { to { transform: rotate(360deg); } }

/* ---------- avisos ---------- */
.aviso { display: flex; align-items: flex-start; gap: .6rem; border-radius: 12px; padding: .8rem 1rem; margin-bottom: 1.1rem; font-weight: 550; border: 1px solid transparent; }
.aviso i { font-size: 1.1rem; margin-top: .05rem; }
.aviso .fechar { margin-left: auto; background: transparent; border: 0; color: inherit; opacity: .6; padding: 0 .2rem; font-size: 1rem; }
.aviso-ok { background: var(--primary-soft); color: var(--primary-text); }
.aviso-erro { background: var(--danger-soft); color: var(--danger); }
.aviso-info { background: var(--info-soft); color: var(--info); }
.aviso-alerta { background: var(--warn-soft); color: var(--warn); }

/* ---------- etiquetas ---------- */
.etiqueta { display: inline-flex; align-items: center; gap: .3rem; border-radius: 999px; padding: .12rem .6rem; font-size: .76rem; font-weight: 700; white-space: nowrap; }
.etiqueta-ok { background: var(--primary-soft); color: var(--primary-text); }
.etiqueta-off { background: var(--surface-2); color: var(--muted); border: 1px solid var(--border); }
.etiqueta-admin { background: var(--info-soft); color: var(--info); }
.etiqueta-alerta { background: var(--warn-soft); color: var(--warn); }
.qtd { display: inline-block; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; padding: .1rem .5rem; font-weight: 700; white-space: nowrap; }

/* ---------- avatar (igual à tela de perfis) ---------- */
.avatar { width: 2.1rem; height: 2.1rem; border-radius: 9px; display: inline-grid; place-items: center; color: #fff; font-weight: 800; font-size: .8rem; flex: none; letter-spacing: .02em; }
.avatar.grande { width: 4.2rem; height: 4.2rem; border-radius: 14px; font-size: 1.45rem; }
.avatar.gigante { width: 6.5rem; height: 6.5rem; border-radius: 18px; font-size: 2.3rem; box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.pessoa { display: inline-flex; align-items: center; gap: .55rem; min-width: 0; }
.pessoa span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- tabelas ---------- */
.tabela-wrap { overflow-x: auto; }
table.tabela { width: 100%; border-collapse: collapse; }
.tabela th { text-align: left; font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 650;
             padding: .6rem 1.2rem; background: var(--surface-2); border-bottom: 1px solid var(--border); white-space: nowrap; }
.tabela td { padding: .7rem 1.2rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tabela tbody tr:last-child td { border-bottom: 0; }
.tabela tbody tr:hover td { background: var(--surface-2); }
.tabela .direita { text-align: right; }
.tabela tr.inativo td { color: var(--muted); }
.tabela .nome-prod { font-weight: 600; }
.tabela a.nome-prod { color: var(--text); text-decoration: none; }
.tabela a.nome-prod:hover { text-decoration: underline; }
.vazio { text-align: center; color: var(--muted); padding: 2.5rem 1rem !important; }
.vazio i { display: block; font-size: 2.2rem; opacity: .35; margin-bottom: .4rem; }
.tabela-topo { display: flex; justify-content: space-between; align-items: center; padding: .9rem 1.2rem; border-bottom: 1px solid var(--border); gap: 1rem; }
.tabela-topo .contagem { font-weight: 700; }

/* lista com barra de proporção */
.ranking { list-style: none; margin: 0; padding: .4rem 0; }
.ranking li { padding: .6rem 1.2rem; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .3rem .8rem; align-items: center; }
.ranking .barra { grid-column: 1 / -1; height: 6px; background: var(--barra-fundo); border-radius: 999px; overflow: hidden; }
.ranking .barra span { display: block; height: 100%; background: var(--barra); border-radius: 999px; }
.ranking .valor { font-weight: 700; font-variant-numeric: tabular-nums; }
.ranking .vazio-lista { color: var(--muted); text-align: center; display: block; padding: 1.2rem; }
.pos { display: inline-grid; place-items: center; width: 1.6rem; height: 1.6rem; border-radius: 7px; background: var(--surface-2); color: var(--muted); font-weight: 700; font-size: .8rem; }
.pos.ouro { background: #fef3c7; color: #b45309; }

/* feed de últimas saídas */
.feed { list-style: none; margin: 0; padding: 0; }
.feed li { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: .9rem; align-items: center; padding: .75rem 1.2rem; border-bottom: 1px solid var(--border); }
.feed li:last-child { border-bottom: 0; }
.feed .hora { font-weight: 700; font-variant-numeric: tabular-nums; color: var(--muted); font-size: .9rem; width: 3rem; }
.feed .o-que { min-width: 0; }
.feed .o-que strong { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.feed .o-que small { color: var(--muted); display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.feed li.novo { animation: destaque 1.6s ease-out; }
@keyframes destaque { from { background: var(--primary-soft); } to { background: transparent; } }

/* ---------- formulários ---------- */
.campo { display: grid; gap: .35rem; margin-bottom: 1rem; }
.campo > label, .rotulo-campo { font-size: .85rem; font-weight: 650; color: var(--muted); }
.campo input[type=text], .campo input[type=password], .campo input[type=date], .campo input:not([type]), .campo select, .campo textarea,
.filtro input, .filtro select {
  width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: .65rem .8rem; background: var(--surface); font-size: .95rem; transition: border-color .12s, box-shadow .12s; }
.campo input:focus, .campo select:focus, .filtro input:focus, .filtro select:focus { outline: 0; border-color: var(--focus); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.campo .ajuda { color: var(--muted); font-size: .8rem; }
.erro-campo { color: var(--danger); font-size: .84rem; font-weight: 600; }
.campo.com-erro input, .campo.com-erro select { border-color: var(--danger); }
.form-card { max-width: 620px; }
.form-acoes { display: flex; gap: .6rem; margin-top: 1.4rem; flex-wrap: wrap; }
.nota { color: var(--muted); font-size: .85rem; margin-top: 1rem; display: flex; gap: .5rem; align-items: flex-start; }

/* interruptor (checkbox) */
.chave { display: flex; align-items: flex-start; gap: .8rem; padding: .8rem .9rem; border: 1px solid var(--border); border-radius: 12px; margin-bottom: .7rem; cursor: pointer; background: var(--surface); }
.chave:hover { background: var(--surface-2); }
.chave input { appearance: none; width: 2.6rem; height: 1.5rem; border-radius: 999px; background: var(--border); position: relative; flex: none; margin: .05rem 0 0; cursor: pointer; transition: background .15s; }
.chave input::after { content: ""; position: absolute; top: 3px; left: 3px; width: calc(1.5rem - 6px); height: calc(1.5rem - 6px); border-radius: 50%; background: #fff; transition: transform .15s; box-shadow: 0 1px 2px rgba(0,0,0,.25); }
.chave input:checked { background: var(--primary); }
.chave input:checked::after { transform: translateX(1.1rem); }
.chave input:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.chave strong { display: block; font-size: .95rem; }
.chave small { color: var(--muted); display: block; }

/* campo grande estilo leitor (busca de produto / código) */
.leitor-campo { display: flex; align-items: center; gap: .8rem; border: 2px solid var(--border); border-radius: 12px; padding: .15rem .35rem .15rem .9rem; background: var(--surface); transition: border-color .15s, box-shadow .15s; }
.leitor-campo:focus-within { border-color: var(--focus); box-shadow: 0 0 0 4px rgba(37,99,235,.15); }
.leitor-campo i { font-size: 1.45rem; color: var(--muted); }
.leitor-campo input { flex: 1; border: 0 !important; outline: 0; background: transparent !important; font-size: 1.15rem; padding: .7rem 0 !important; min-width: 0; box-shadow: none !important; }
.campo.com-erro .leitor-campo { border-color: var(--danger); }

/* barra de filtros */
.filtro { display: flex; flex-wrap: wrap; gap: .75rem; align-items: flex-end; padding: 1rem 1.2rem; }
.filtro .f { display: grid; gap: .3rem; min-width: 150px; flex: 1; }
.filtro .f label { font-size: .75rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.filtro .f.curto { flex: 0 1 160px; }
.filtro .f-acoes { display: flex; gap: .5rem; }
.filtro-rodape { display: flex; justify-content: space-between; align-items: center; gap: .7rem; flex-wrap: wrap; padding: .6rem 1.2rem; border-top: 1px solid var(--border); background: var(--surface-2); border-radius: 0 0 var(--radius) var(--radius); font-size: .85rem; color: var(--muted); }
.atalhos-periodo { display: flex; gap: .35rem; flex-wrap: wrap; }
.atalhos-periodo a { text-decoration: none; color: var(--muted); border: 1px solid var(--border); background: var(--surface); padding: .2rem .65rem; border-radius: 999px; font-weight: 600; font-size: .8rem; }
.atalhos-periodo a:hover { color: var(--text); }
.atalhos-periodo a.ativo { background: var(--text); color: var(--surface); border-color: var(--text); }

/* paginação */
.paginacao { display: flex; justify-content: center; gap: .3rem; padding: .8rem; border-top: 1px solid var(--border); flex-wrap: wrap; }
.paginacao a, .paginacao span { min-width: 2.1rem; height: 2.1rem; display: inline-grid; place-items: center; border-radius: 9px; text-decoration: none; color: var(--text);
                                 border: 1px solid var(--border); font-weight: 600; font-size: .88rem; padding: 0 .5rem; background: var(--surface); }
.paginacao a:hover { background: var(--surface-2); }
.paginacao .atual { background: var(--text); color: var(--surface); border-color: var(--text); }
.paginacao .reticencias { border: 0; background: transparent; color: var(--muted); }

/* ---------- perfis (usuários) ---------- */
.perfis { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1.1rem; }
.perfil-card { padding: 1.3rem 1.2rem 1.1rem; display: flex; flex-direction: column; align-items: center; text-align: center; gap: .5rem; position: relative; text-decoration: none; color: var(--text);
               transition: transform .15s, box-shadow .15s, border-color .15s; }
.perfil-card:hover { transform: translateY(-2px); border-color: var(--muted); box-shadow: 0 10px 30px rgba(15,23,42,.12); }
.perfil-card .avatar { transition: transform .15s; outline: 3px solid transparent; outline-offset: 3px; }
.perfil-card:hover .avatar { outline-color: var(--text); }
.perfil-card .nome { font-weight: 700; font-size: 1.08rem; margin-top: .4rem; }
.perfil-card .login { color: var(--muted); font-size: .85rem; margin-top: -.35rem; }
.perfil-card .etiquetas { display: flex; gap: .35rem; flex-wrap: wrap; justify-content: center; margin: .2rem 0; }
.perfil-card .numeros { display: grid; grid-template-columns: 1fr 1fr; width: 100%; border-top: 1px solid var(--border); margin-top: .5rem; padding-top: .8rem; }
.perfil-card .numeros div + div { border-left: 1px solid var(--border); }
.perfil-card .numeros strong { display: block; font-size: 1.1rem; }
.perfil-card .numeros small { color: var(--muted); font-size: .75rem; }
.perfil-card .editar { position: absolute; top: .7rem; right: .7rem; color: var(--muted); }
.perfil-card.inativo { opacity: .6; }
.perfil-card.inativo .avatar { filter: grayscale(1); }
.perfil-novo { border: 2px dashed var(--border); background: transparent; box-shadow: none; justify-content: center; color: var(--muted); min-height: 260px; }
.perfil-novo i { font-size: 2.4rem; }
.perfil-novo:hover { color: var(--text); border-color: var(--muted); }

.previa-perfil { display: flex; flex-direction: column; align-items: center; gap: .5rem; padding: 1.6rem 1rem; text-align: center; }
.previa-perfil .nome { font-weight: 750; font-size: 1.25rem; margin-top: .5rem; }
.form-perfil { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 1.1rem; align-items: start; max-width: 960px; }

/* ---------- login ---------- */
.tela-login { min-height: 100vh; display: grid; place-items: center; background: var(--login-bg); padding: 1rem; position: relative; }
.tela-login .tema { position: absolute; top: 1rem; right: 1rem; color: var(--muted); border-color: var(--border); }
.login-card { width: min(400px, 100%); padding: 2rem; }
.login-card .marca { display: flex; align-items: center; gap: .7rem; margin-bottom: 1.6rem; }
.login-card .marca i { width: 2.8rem; height: 2.8rem; border-radius: 12px; background: var(--brand); color: #4ade80; display: grid; place-items: center; font-size: 1.4rem; }
.login-card h1 { margin: 0; font-size: 1.3rem; }
.login-card .marca span { color: var(--muted); font-size: .88rem; }
.login-card .btn { width: 100%; margin-top: .4rem; }
.login-card .voltar { display: block; text-align: center; margin-top: 1.2rem; color: var(--muted); text-decoration: none; font-size: .9rem; }
.login-card .voltar:hover { color: var(--text); }

/* gráfico */
.grafico { position: relative; height: 260px; }

/* ---------- responsivo ---------- */
@media (max-width: 1200px) { .grade-kpi { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 1000px) {
  .grade-principal, .form-perfil { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; padding: .3rem .6rem; }
  .sidebar .rotulo-menu { display: none; }
  .sidebar .nav-link.active::before { display: none; }
  .sidebar .rodape { margin: 0 0 0 auto; border: 0; }
  .conteudo { padding: 1rem; }
  .grade-3 { grid-template-columns: 1fr; }
  .relogio { display: none; }
}
@media (max-width: 560px) { .grade-kpi { grid-template-columns: 1fr; } }