.flash { padding: 10px 16px; border-radius: 5px; margin-bottom: 14px; font-size: 15px; }
.flash.success { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }
.flash.error   { background: #ffebee; color: #c62828; border: 1px solid #ef9a9a; }