.rtb-wrapper {
	max-width: 640px;
	margin: 0 auto;
	padding: 24px;
	background: #fff;
	border: 1px solid #e5e5e5;
	border-radius: 10px;
	box-shadow: 0 2px 10px rgba(0,0,0,0.04);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.rtb-title {
	margin: 0 0 20px;
	font-size: 24px;
	font-weight: 700;
	color: #222;
}

.rtb-field-row {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
	margin-bottom: 16px;
}

.rtb-field {
	flex: 1 1 220px;
	display: flex;
	flex-direction: column;
}

.rtb-field label {
	font-size: 13px;
	font-weight: 600;
	margin-bottom: 6px;
	color: #444;
}

.rtb-field .req {
	color: #d63638;
}

.rtb-field input,
.rtb-field select {
	padding: 10px 12px;
	border: 1px solid #ccc;
	border-radius: 6px;
	font-size: 14px;
}

.rtb-field input:focus,
.rtb-field select:focus {
	outline: none;
	border-color: #b5121b;
	box-shadow: 0 0 0 2px rgba(181,18,27,0.12);
}

.rtb-step-2 h3 {
	margin: 4px 0 14px;
	font-size: 16px;
	color: #222;
}

.rtb-actions {
	display: flex;
	gap: 12px;
	margin-top: 10px;
}

.rtb-btn {
	flex: 1;
	padding: 12px 18px;
	border-radius: 8px;
	border: none;
	font-size: 15px;
	font-weight: 700;
	cursor: pointer;
	transition: opacity .15s ease;
}

.rtb-btn:disabled {
	opacity: .6;
	cursor: not-allowed;
}

.rtb-btn-primary {
	background: #b5121b;
	color: #fff;
}

.rtb-btn-secondary {
	background: #222;
	color: #fff;
}

.rtb-btn:hover:not(:disabled) {
	opacity: .9;
}

.rtb-message {
	margin-top: 14px;
	font-size: 14px;
	padding: 0;
}

.rtb-message.success {
	padding: 12px 14px;
	background: #edf7ed;
	color: #1e4620;
	border-radius: 8px;
}

.rtb-message.error {
	padding: 12px 14px;
	background: #fdeded;
	color: #5f2120;
	border-radius: 8px;
}

@media (max-width: 480px) {
	.rtb-wrapper { padding: 16px; }
	.rtb-actions { flex-direction: column; }
}