:root {
  --verde: #2d6a4f;
  --verde-claro: #40916c;
  --verde-fundo: #d8f3dc;
  --cinza: #f8f9fa;
  --borda: #dee2e6;
  --texto: #212529;
  --vermelho: #c0392b;
  --amarelo: #f39c12;
  --branco: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--cinza);
  color: var(--texto);
  font-size: 15px;
}

nav {
  background: var(--verde);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 52px;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.85;
  transition: opacity 0.15s;
}

nav a:hover { opacity: 1; }

nav a.brand {
  font-weight: 700;
  font-size: 1rem;
  opacity: 1;
  margin-right: 1rem;
  letter-spacing: 0.02em;
}

main {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; color: var(--verde); }
h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; color: var(--verde); }

/* Cards de saldo */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.card .label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #6c757d;
  margin-bottom: 0.4rem;
}

.card .valor {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--verde);
}

.card.destaque { border-color: var(--verde-claro); background: var(--verde-fundo); }

/* Tabelas */
.box {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.box-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--borda);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.box-header h2 { margin: 0; }

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

th {
  background: var(--cinza);
  padding: 0.6rem 1rem;
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #6c757d;
  border-bottom: 1px solid var(--borda);
}

td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid #f1f3f5;
  font-size: 0.9rem;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8f9fa; }

.num { text-align: right; font-variant-numeric: tabular-nums; }
.verde { color: var(--verde-claro); font-weight: 600; }
.vermelho { color: var(--vermelho); font-weight: 600; }

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-pago { background: #d1fae5; color: #065f46; }
.badge-pendente { background: #fef3c7; color: #92400e; }

/* Botões */
.btn {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: opacity 0.15s;
}

.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--verde); color: #fff; }
.btn-secondary { background: var(--borda); color: var(--texto); }
.btn-sm { padding: 0.25rem 0.6rem; font-size: 0.78rem; }
.btn-danger { background: var(--vermelho); color: #fff; }

/* Formulários */
form.inline { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

input, select {
  border: 1px solid var(--borda);
  border-radius: 6px;
  padding: 0.4rem 0.7rem;
  font-size: 0.9rem;
  background: var(--branco);
}

input:focus, select:focus {
  outline: 2px solid var(--verde-claro);
  border-color: transparent;
}

/* Grid de navegação de meses */
.mes-nav {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.mes-nav a {
  color: var(--verde);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.2rem 0.5rem;
}

.separador { margin: 2rem 0; border: none; border-top: 1px solid var(--borda); }