:root {
  --bg: #0f1419;
  --panel: #1a2129;
  --border: #2c3640;
  --text: #e6e8ea;
  --muted: #8a949e;
  --accent: #22c55e;
  --erro: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.muted { color: var(--muted); }
.erro { color: var(--erro); font-size: 0.9rem; }
.hidden { display: none; }

/* Login */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem 2.5rem;
  width: 340px;
}

.login-card h1 { margin: 0; font-size: 1.4rem; }
.login-card p { margin-top: 0.25rem; }

.login-card label {
  display: block;
  margin: 0.9rem 0 0.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.login-card input {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.login-card button {
  margin-top: 1.2rem;
  width: 100%;
  padding: 0.6rem;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #06270f;
  font-weight: 600;
  cursor: pointer;
}

.login-card button:hover { filter: brightness(1.1); }

/* App (sidebar + conteúdo) */
.app-page { display: flex; min-height: 100vh; }

/* Topbar e overlay só aparecem no mobile (ver media query no fim) */
.topbar { display: none; }
.overlay { display: none; }

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  padding: 1.1rem 1rem;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--muted);
}
.brand-dot.verde { background: var(--accent); }
.brand-dot.amarelo { background: #eab308; }
.brand-dot.vermelho { background: var(--erro); }

.sidebar nav { flex: 1; padding: 0.5rem 0; }

.sidebar nav a {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--text);
  text-decoration: none;
  border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: rgba(255, 255, 255, 0.04); }
.sidebar nav a.ativo { border-left-color: var(--accent); background: rgba(34, 197, 94, 0.08); }

.badge {
  background: var(--erro);
  color: #fff;
  border-radius: 999px;
  font-size: 0.7rem;
  padding: 0.05rem 0.45rem;
  margin-left: 0.3rem;
}

.sidebar-rodape {
  padding: 0.8rem 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.link {
  background: none; border: none; color: var(--muted);
  cursor: pointer; text-decoration: underline; font-size: 0.85rem;
}
.link:hover { color: var(--text); }

.conteudo { flex: 1; padding: 1.5rem 2rem; max-width: 1200px; }

.conteudo h1 { font-size: 1.4rem; margin-top: 0; display: flex; align-items: center; gap: 0.8rem; }
.conteudo h2 { font-size: 1.1rem; margin-top: 1.6rem; }

.semaforo {
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  padding: 0.2rem 0.7rem; border-radius: 999px;
}
.semaforo.verde { background: rgba(34, 197, 94, 0.15); color: var(--accent); }
.semaforo.amarelo { background: rgba(234, 179, 8, 0.15); color: #eab308; }
.semaforo.vermelho { background: rgba(239, 68, 68, 0.15); color: var(--erro); }

.cards { display: flex; flex-wrap: wrap; gap: 1rem; margin: 1rem 0; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  min-width: 180px;
  flex: 1;
}
.card h3 { margin: 0 0 0.4rem; font-size: 0.85rem; color: var(--muted); font-weight: 600; }
.card .num { font-size: 1.8rem; font-weight: 700; }
.card p { margin: 0.2rem 0 0; font-size: 0.8rem; }

table { width: 100%; border-collapse: collapse; margin-top: 0.8rem; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; }

.estado {
  font-size: 0.75rem; font-weight: 600;
  padding: 0.15rem 0.55rem; border-radius: 999px;
  background: rgba(138, 148, 158, 0.15); color: var(--muted);
}
.estado.ok { background: rgba(34, 197, 94, 0.15); color: var(--accent); }
.estado.aviso { background: rgba(234, 179, 8, 0.15); color: #eab308; }
.estado.erro { background: rgba(239, 68, 68, 0.15); color: var(--erro); }

.filtros { display: flex; gap: 0.6rem; margin: 0.8rem 0; align-items: center; }
.filtros select, .filtros input {
  padding: 0.45rem 0.6rem; border-radius: 6px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
}

.lista-simples { list-style: none; padding: 0; margin: 0.5rem 0 0; font-size: 0.85rem; }
.lista-simples li { padding: 0.15rem 0; }

button.mini {
  padding: 0.25rem 0.6rem; font-size: 0.75rem; border-radius: 5px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
  cursor: pointer;
}
button.mini:hover { border-color: var(--accent); }
button.mini.perigo:hover { border-color: var(--erro); color: var(--erro); }

.form-linha { display: flex; gap: 0.6rem; margin-top: 0.6rem; flex-wrap: wrap; }
.form-linha input {
  flex: 1; min-width: 140px;
  padding: 0.5rem 0.7rem; border-radius: 6px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
}
.form-linha button {
  padding: 0.5rem 1.1rem; border: none; border-radius: 6px;
  background: var(--accent); color: #06270f; font-weight: 600; cursor: pointer;
}

/* Gráficos (Histórico) */
.graficos { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1rem; margin-top: 1rem; }
.grafico-box {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; padding: 0.8rem 1rem;
}
.grafico-box h3 { margin: 0 0 0.5rem; font-size: 0.8rem; color: var(--muted); }
.grafico-box canvas { width: 100%; height: 120px; display: block; }

/* ---------- Responsivo (celular / tablet estreito) ---------- */
@media (max-width: 768px) {
  /* Topbar fixa com hambúrguer */
  .topbar {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    position: sticky;
    top: 0;
    z-index: 30;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 0.6rem 1rem;
  }
  .btn-menu {
    background: none; border: none; color: var(--text);
    font-size: 1.4rem; line-height: 1; cursor: pointer; padding: 0;
  }
  .topbar-titulo { font-weight: 700; flex: 1; }

  /* App vira coluna; a sidebar sai do fluxo e vira gaveta lateral */
  .app-page { flex-direction: column; }

  .sidebar {
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    width: 240px;
    max-width: 82vw;
    z-index: 40;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  body.menu-aberto .sidebar { transform: translateX(0); }

  .overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 35;
  }
  body.menu-aberto .overlay { display: block; }

  /* Conteúdo ocupa toda a largura, com padding menor */
  .conteudo { padding: 1rem; }
  .conteudo h1 { font-size: 1.2rem; }

  /* Cards: um por linha */
  .card { min-width: 100%; }

  /* Tabelas largas rolam na horizontal em vez de espremer/vazar */
  table { display: block; overflow-x: auto; white-space: nowrap; }

  /* Filtros e formulários empilham */
  .filtros { flex-wrap: wrap; }
  .form-linha input, .form-linha button { flex-basis: 100%; }
}

/* Login não estoura em telas estreitas */
@media (max-width: 400px) {
  .login-card { width: 100%; max-width: 340px; padding: 1.6rem 1.4rem; }
  .login-page { padding: 1rem; }
}