:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1c2530;
  --muted: #6b7686;
  --brand: #1f6f54;
  --brand-dark: #16513d;
  --warn: #b5482a;
  --border: #e2e6ea;
}

* { box-sizing: border-box; }

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

.hidden { display: none !important; }

.screen { min-height: 100vh; }

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--card);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  width: 100%;
  max-width: 360px;
}

.login-card h1 { margin: 0 0 0.25rem; font-size: 1.4rem; }
.subtitle { color: var(--muted); margin: 0 0 1.5rem; }

label { display: block; font-size: 0.85rem; margin: 0.75rem 0 0.25rem; color: var(--muted); }

input[type=email], input[type=password], input[type=text] {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
}

.login-card button[type=submit] {
  width: 100%;
  margin-top: 1.5rem;
  padding: 0.7rem;
  background: var(--brand);
  color: white;
  font-weight: 600;
}
.login-card button[type=submit]:hover { background: var(--brand-dark); }

.erro { color: var(--warn); font-size: 0.85rem; min-height: 1.2em; margin-top: 0.75rem; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
header h1 { font-size: 1.2rem; margin: 0; }

.link {
  background: none;
  color: var(--muted);
  text-decoration: underline;
  padding: 0.25rem;
}

.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.75rem 1.5rem 0;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  background: none;
  padding: 0.6rem 1rem;
  color: var(--muted);
  font-weight: 600;
  border-bottom: 3px solid transparent;
}
.tab-btn.active { color: var(--brand); border-bottom-color: var(--brand); }

main { padding: 1.5rem; max-width: 720px; margin: 0 auto; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.card h2 { margin-top: 0; font-size: 1.05rem; }

.status-linha { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.conectado { background: #2e9e5b; }
.dot.aguardando_qr { background: #d9a441; }
.dot.desconectado { background: #b5482a; }

#conexao-qr img { max-width: 260px; display: block; margin: 1rem auto; }

.lead-item {
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}
.lead-item:last-child { border-bottom: none; }
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin-right: 0.5rem;
}
.tag.quente { background: #fde3dc; color: #b5482a; }
.tag.morno { background: #fdf1d6; color: #a3781a; }
.tag.frio { background: #dfeaf6; color: #2c5d8f; }

.switch-row { display: flex; align-items: center; gap: 0.6rem; font-weight: 500; cursor: pointer; }
.switch-row input { width: 18px; height: 18px; }

.btn-warn { background: var(--warn); color: white; padding: 0.6rem 1rem; margin-right: 0.5rem; }
.btn-secondary { background: #e2e6ea; color: var(--ink); padding: 0.6rem 1rem; }

.add-row { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.add-row input { flex: 1; }
.add-row button { background: var(--brand); color: white; padding: 0 1rem; }

#lista-autorizados { list-style: none; padding: 0; margin: 0; }
#lista-autorizados li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.5rem 0; border-bottom: 1px solid var(--border);
}
#lista-autorizados button { background: none; color: var(--warn); }

.arquivo-cerebro { margin-bottom: 1rem; }
.arquivo-cerebro summary { cursor: pointer; font-weight: 600; padding: 0.5rem 0; }
.arquivo-cerebro pre {
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.9rem;
  background: var(--bg);
  padding: 1rem;
  border-radius: 8px;
}