/* styles.css */
body {
  font-family: Arial, sans-serif;
  background: #f5f7fa;
  margin: 0;
}

.container {
  max-width: 720px;
  margin: auto;
  padding: 20px;
  background: #fff;
}

header, footer {
  margin-bottom: 20px;
}

button {
  padding: 8px 14px;
  cursor: pointer;
  margin: 5px 5px 5px 0;
}

.main-actions button {
  margin-right: 10px;
  font-size: 16px;
}

.box {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 15px;
  margin-top: 15px;
}

.ok { color: #0a8a3a; font-weight: bold; }
.err { color: #c62828; font-weight: bold; }

.mono {
  font-family: monospace;
  word-break: break-all;
  overflow-wrap: anywhere;
  white-space: normal;
}

a {
  text-decoration: none;
  color: #1565c0;
}

/* Form nhập liệu */
.transfer-form {
  background: #f9f9f9;
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 15px;
  margin-top: 15px;
}

.transfer-form label {
  display: block;
  margin-top: 10px;
  font-weight: bold;
}

.transfer-form input,
.transfer-form textarea {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

.transfer-form textarea {
  resize: vertical;
  min-height: 80px;
}

.transfer-form .btn-group {
  margin-top: 15px;
  text-align: right;
}

.transfer-form .btn-group button {
  padding: 10px 20px;
  font-size: 15px;
}

#btn-create-qr {
  background: #1565c0;
  color: white;
  border: none;
}

#btn-create-qr:hover {
  background: #0d47a1;
}

#btn-clear-form {
  background: #666;
  color: white;
  border: none;
}

/* Ẩn QR và chứng từ lúc đầu */
#qrcode, #txhash {
  display: none;
}

footer {
  text-align: center;
  padding: 15px;
  font-size: 14px;
  color: #666;
}

footer a {
  color: #007bff;
  text-decoration: none;
  margin: 0 5px;
}

footer a:hover {
  text-decoration: underline;
}