body { font-family: Arial, sans-serif; background: #fff5f5; color: #333; margin: 20px; }
h1, h2 { color: #b71c1c; }
button, input[type="submit"] { background: #c62828; color: white; border: none; padding: 8px 16px; border-radius: 4px; cursor: pointer; }
button:hover, input[type="submit"]:hover { background: #8e0000; }
input[type="text"], input[type="email"] { padding: 5px; border: 1px solid #e57373; border-radius: 4px; }
iframe { border: 2px solid #c62828; border-radius: 4px; background: white; }
table { border-collapse: collapse; }
th { background: #c62828; color: white; }
th, td { border: 1px solid #e57373; padding: 6px 10px; }
tr:nth-child(even) { background: #ffebee; }