* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f4f6f9;
  color: #333;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

header h1 {
  color: #1e3a8a;
  margin-bottom: 8px;
}

header p {
  color: #64748b;
}

.container {
  display: flex;
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  padding: 24px;
  flex: 1;
  min-width: 300px;
  border-top: 5px solid #1e3a8a;
}

#card-poupanca {
  border-top-color: #10b981;
}

.card h2 {
  margin-bottom: 16px;
  color: #1e293b;
}

.titular {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: #475569;
}

.titular span {
  font-weight: 600;
  color: #1e293b;
}

.info-saldo {
  background: #f8fafc;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.info-saldo p {
  font-size: 1rem;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}

.info-saldo strong {
  font-size: 1.3rem;
  color: #1e3a8a;
}

#card-poupanca .info-saldo strong {
  color: #10b981;
}

.historico {
  border-top: 1px solid #e2e8f0;
  padding-top: 16px;
}

.historico h3 {
  font-size: 0.95rem;
  color: #64748b;
  margin-bottom: 10px;
}

.log-item {
  font-size: 0.85rem;
  padding: 6px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
  background: #f1f5f9;
}

.acoes {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.acoes input {
  padding: 10px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 1rem;
  outline: none;
}

.acoes input:focus {
  border-color: #1e3a8a;
}

.botoes-grupo {
  display: flex;
  gap: 10px;
}

.btn {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-deposito {
  background-color: #10b981;
  color: white;
}
.btn-deposito:hover {
  background-color: #059669;
}

.btn-saque {
  background-color: #ef4444;
  color: white;
}
.btn-saque:hover {
  background-color: #dc2626;
}

.btn-render {
  background-color: #3b82f6;
  color: white;
  margin-top: 5px;
}
.btn-render:hover {
  background-color: #2563eb;
}