:root {
  --cor-luz: #f0a500;
  --cor-agua: #0077b6;
  --cor-fundo: #f4f6f8;
  --cor-cartao: #ffffff;
  --cor-texto: #222;
  --cor-borda: #e0e4e8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--cor-fundo);
  color: var(--cor-texto);
}

header {
  background: linear-gradient(90deg, var(--cor-luz), var(--cor-agua));
  color: white;
  padding: 1.5rem 1rem;
  text-align: center;
}

header h1 {
  margin: 0;
}

.cabecalho-titulo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin: 0 0 0.25rem 0;
}

.cabecalho-titulo .logo {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  padding: 4px;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.25));
}

main {
  max-width: 900px;
  margin: 1.5rem auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.abas {
  max-width: 900px;
  margin: 1.5rem auto 0;
  padding: 0 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.aba-btn {
  background: var(--cor-cartao);
  color: var(--cor-texto);
  border: 1px solid var(--cor-borda);
  border-radius: 8px 8px 0 0;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.aba-btn:hover {
  background: #f0f2f4;
}

.aba-btn.ativa {
  background: var(--cor-agua);
  color: white;
  border-color: var(--cor-agua);
}

.aba-conteudo {
  display: none;
  flex-direction: column;
  gap: 1.25rem;
}

.aba-conteudo.ativa {
  display: flex;
}

.dica {
  font-size: 0.85rem;
  color: #666;
  margin: 0.25rem 0 0 0;
}

.card {
  background: var(--cor-cartao);
  border: 1px solid var(--cor-borda);
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.card h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.form-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: end;
}

.form-inline label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-inline input,
.form-inline select {
  padding: 0.5rem;
  border: 1px solid var(--cor-borda);
  border-radius: 6px;
  font-size: 1rem;
  min-width: 160px;
}

button {
  padding: 0.55rem 1.1rem;
  background: var(--cor-agua);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  height: fit-content;
}

button:hover {
  opacity: 0.9;
}

.msg {
  min-height: 1.2rem;
  font-size: 0.9rem;
}

.msg.erro {
  color: #c0392b;
}

.msg.sucesso {
  color: #1e8449;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--cor-borda);
  font-size: 0.95rem;
}

th {
  background: #fafbfc;
}

button.apagar {
  background: #c0392b;
  padding: 0.3rem 0.6rem;
  font-size: 0.85rem;
}

.totais-grid {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.totais-grid .totais-item {
  flex: 1;
  min-width: 200px;
  padding: 1rem;
  border-radius: 8px;
  color: white;
}

.totais-item.luz {
  background: var(--cor-luz);
}

.totais-item.agua {
  background: var(--cor-agua);
}

.totais-item h3 {
  margin: 0 0 0.4rem 0;
  font-size: 1rem;
}

.totais-item p {
  margin: 0.15rem 0;
  font-size: 0.95rem;
}

footer {
  text-align: center;
  padding: 1.5rem;
  color: #777;
  font-size: 0.85rem;
}

canvas {
  max-width: 100%;
  border: 1px solid var(--cor-borda);
  border-radius: 6px;
}