.bk-cf {
	background: #ffffff;
	border: 1px solid #dce7f4;
	border-radius: 18px;
	box-shadow: 0 18px 48px rgba(10, 41, 78, 0.08);
	padding: 34px 34px 28px;
	text-align: left;
	max-width: 760px;
	margin: 0 auto;
}

@media (max-width: 640px) {
	.bk-cf { padding: 24px 18px 18px; }
}

.bk-cf-section {
	border: none;
	border-top: 1px solid #eef3f9;
	margin: 0 0 26px;
	padding: 22px 0 0;
}

.bk-cf-section:first-of-type { border-top: none; padding-top: 0; }

.bk-cf-section-title {
	display: block;
	width: 100%;
	text-align: center;
	margin-bottom: 18px;
	font-family: "Bai Jamjuree", sans-serif;
	font-size: 21px;
	font-weight: 700;
	color: #0A294E;
	padding: 0;
}

.bk-cf-optional {
	font-style: normal;
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 1px;
	text-transform: uppercase;
	color: #E0A83A;
	margin-left: 6px;
}

.bk-cf-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 14px 18px;
}

@media (max-width: 640px) {
	.bk-cf-grid { grid-template-columns: 1fr; }
}

.bk-cf-field { display: block; }

.bk-cf-field--full { grid-column: 1 / -1; }

.bk-cf-field label {
	display: block;
	margin-bottom: 6px;
	font-family: "Bai Jamjuree", sans-serif;
	font-size: 13px;
	font-weight: 600;
	color: #23405e;
}

.bk-cf-req { color: #c53d2b; font-style: normal; }

.bk-cf-field input[type="text"],
.bk-cf-field input[type="email"],
.bk-cf-field input[type="tel"],
.bk-cf-field input[type="number"],
.bk-cf-field textarea,
.bk-cf-field input[type="file"] {
	width: 100%;
	padding: 12px 14px;
	border: 1px solid #d4e0ee;
	border-radius: 10px;
	background: #fbfdff;
	font-family: "Inter", sans-serif;
	font-size: 15px;
	color: #0A294E;
	transition: border-color .2s ease, box-shadow .2s ease;
	box-sizing: border-box;
}

.bk-cf-field textarea { resize: vertical; }

.bk-cf-field input:focus,
.bk-cf-field textarea:focus,
.bk-cf-field input[type="file"]:focus {
	outline: none;
	border-color: #1759AA;
	box-shadow: 0 0 0 3px rgba(23, 89, 170, 0.15);
	background: #ffffff;
}

.bk-cf-choices {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	justify-content: center;
}

.bk-cf-choices--provinces { justify-content: flex-start; }

.bk-cf-choice {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	cursor: pointer;
	font-family: "Inter", sans-serif;
	font-size: 14px;
	font-weight: 500;
	color: #23405e;
}

.bk-cf-choice input[type="checkbox"] {
	accent-color: #1759AA;
	width: 17px;
	height: 17px;
}

.bk-cf-choice--tog input[type="checkbox"] {
	display: inline-block;
	vertical-align: middle;
}

.bk-cf-note {
	margin: 8px 0 0;
	font-size: 13px;
	color: #6b7f94;
}

.bk-cf-refgroup {
	margin: 16px 0 4px;
	padding-top: 14px;
	border-top: 1px dashed #e4ecf5;
}

.bk-cf-refgroup-toggle {
	display: inline-flex;
	font-weight: 700;
	color: #0A294E;
	font-family: "Bai Jamjuree", sans-serif;
	font-size: 15px;
}

.bk-cf-refgroup-fields {
	display: none;
	margin-top: 14px;
}

.bk-cf-refgroup-fields.open {
	display: grid;
}

.bk-cf-submit {
	text-align: center;
	margin-top: 10px;
}

.bk-cf-btn {
	display: inline-block;
	padding: 15px 38px;
	border: none;
	border-radius: 999px;
	background: #0A294E;
	color: #ffffff;
	font-family: "Bai Jamjuree", sans-serif;
	font-size: 16px;
	font-weight: 700;
	cursor: pointer;
	transition: background .2s ease, transform .2s ease;
}

.bk-cf-btn:hover { background: #1759AA; transform: translateY(-2px); }

.bk-cf-btn:focus-visible { outline: 3px solid rgba(23, 89, 170, 0.4); outline-offset: 2px; }

.bk-cf-errors {
	background: #fdf1ee;
	border: 1px solid #f0c0b3;
	color: #7a1f10;
	border-radius: 12px;
	padding: 16px 20px;
	margin-bottom: 22px;
	font-size: 14px;
	max-width: 760px;
	margin-left: auto;
	margin-right: auto;
	text-align: left;
}

.bk-cf-errors ul { margin: 8px 0 0 18px; padding: 0; }
.bk-cf-errors li { margin: 3px 0; }

.bk-cf-success {
	text-align: center;
	background: #ffffff;
	border: 1px solid #dce7f4;
	border-radius: 18px;
	box-shadow: 0 18px 48px rgba(10, 41, 78, 0.08);
	padding: 44px 30px;
	max-width: 760px;
	margin: 0 auto;
}

.bk-cf-success-mark {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 62px;
	height: 62px;
	border-radius: 50%;
	background: #e7f5ec;
	color: #1d9a4f;
	font-size: 30px;
	font-weight: 700;
}

.bk-cf-success h3 {
	font-family: "Bai Jamjuree", sans-serif;
	font-size: 24px;
	color: #0A294E;
	margin: 16px 0 8px;
}

.bk-cf-success p {
	color: #43586f;
	font-size: 15px;
	max-width: 460px;
	margin: 0 auto;
}