/* =====================================================================
   Painel TCP-MQTT Bridge — estilo simples, limpo e responsivo.
   Sem frameworks: só CSS puro com variáveis.
   ===================================================================== */

:root {
  --bg: #f5f6f8;          /* fundo da página */
  --surface: #ffffff;     /* cartões / tabelas */
  --border: #e2e5ea;
  --ink: #1c2330;         /* texto principal */
  --ink-2: #5a6474;       /* texto secundário */
  --ink-3: #8a93a3;       /* texto esmaecido */
  --accent: #2458e6;      /* ações / links */
  --accent-ink: #ffffff;
  --ok-bg: #e5f4ea;  --ok-ink: #176639;      /* status bom */
  --bad-bg: #fdeaea; --bad-ink: #99231f;     /* status ruim */
  --warn-bg: #fdf3e0; --warn-ink: #8a5a00;   /* atenção */
  --off-bg: #eceef2; --off-ink: #5a6474;     /* neutro/desligado */
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden { display: none !important; }
.muted { color: var(--ink-3); }

/* ---------- Barra superior ---------- */
#topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
  height: 52px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; }
#topbar nav { display: flex; gap: 4px; }
#topbar nav a {
  color: var(--ink-2);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
}
#topbar nav a.active { background: var(--bg); color: var(--ink); font-weight: 600; }
#topbar nav a:hover { color: var(--ink); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

footer {
  padding: 12px 20px;
  text-align: center;
  font-size: 12px;
}

h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 15px; margin: 24px 0 10px; color: var(--ink-2); }

/* ---------- Botões e formulários ---------- */
.btn {
  font: inherit;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
}
.btn:hover { border-color: var(--ink-3); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger { background: var(--bad-ink); border-color: var(--bad-ink); color: #fff; }
.btn-ghost { border-color: transparent; background: transparent; color: var(--ink-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

label { display: block; font-size: 12.5px; color: var(--ink-2); margin-bottom: 4px; }
input[type="text"], input[type="password"], input[type="number"] {
  font: inherit;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
}
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.checkbox-row label { margin: 0; color: var(--ink); font-size: 13.5px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.form-actions { margin-top: 16px; display: flex; gap: 10px; align-items: center; }

/* ---------- Login ---------- */
.login-wrap {
  max-width: 360px;
  margin: 10vh auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.login-wrap h1 { text-align: center; }
.login-wrap .field { margin-bottom: 14px; }

/* ---------- Mensagens ---------- */
.msg { padding: 10px 12px; border-radius: 8px; margin: 12px 0; font-size: 13.5px; }
.msg-error { background: var(--bad-bg); color: var(--bad-ink); }
.msg-ok { background: var(--ok-bg); color: var(--ok-ink); }

/* ---------- Stat tiles (dashboard) ----------
   Contrato do tile: rótulo (sentence case, sem dois-pontos) em texto
   secundário + valor em seminegrito. Cores de status só em badges com
   texto (nunca cor sozinha). */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 12px;
}
.tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}
.tile .label { font-size: 12.5px; color: var(--ink-2); margin-bottom: 6px; }
.tile .value { font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.tile.is-error .value { color: var(--bad-ink); }

/* ---------- Tabelas ---------- */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
}
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
tr:last-child td { border-bottom: none; }
th { color: var(--ink-2); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover { background: var(--bg); }

/* ---------- Badges de status (sempre com texto) ---------- */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-ok   { background: var(--ok-bg);   color: var(--ok-ink); }
.badge-bad  { background: var(--bad-bg);  color: var(--bad-ink); }
.badge-warn { background: var(--warn-bg); color: var(--warn-ink); }
.badge-off  { background: var(--off-bg);  color: var(--off-ink); }

/* ---------- Cartões / seções ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 18px;
}
.kv { display: grid; grid-template-columns: 220px 1fr; gap: 6px 16px; font-size: 13.5px; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; word-break: break-all; }

/* Caixa do tópico de publicação (destaque na config MQTT) */
.topic-box {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 16px;
}
.topic-box .label { font-size: 12.5px; color: var(--ink-2); }
.topic-box code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent);
  word-break: break-all;
}

pre.payload {
  background: #0f172a;
  color: #d8e1f0;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  overflow-x: auto;
  margin: 6px 0 0;
}

.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.page-head h1 { margin: 0; }
.page-head .spacer { flex: 1; }

@media (max-width: 640px) {
  .kv { grid-template-columns: 1fr; }
  #topbar { gap: 10px; }
}