/**
 * BK Tính Toán Widget CSS
 * Author: Bùi Đức Hạnh (https://buhaweb.com/)
 * Prefix: bdh-bk-
 * Kit 4 Green Theme: dominant green (#2CAC55, #2A9150, #1E6B3A), white text on green backgrounds
 */

/* ==========================================================================
   1. ROOT WRAPPER & CONTAINER
   ========================================================================== */
.bdh-bk-tinh-toan-wrap {
	position: relative;
	width: 100%;
	box-sizing: border-box;
}

.bdh-bk-tinh-toan-wrap *,
.bdh-bk-tinh-toan-wrap *::before,
.bdh-bk-tinh-toan-wrap *::after {
	box-sizing: border-box;
}

/* ==========================================================================
   2. HEADING SECTION (OPTIONAL)
   ========================================================================== */
.bdh-bk-tinh-toan-heading {
	text-align: center;
	margin-bottom: 32px;
}

.bdh-bk-tinh-toan-heading__badge {
	display: inline-block;
	background: var(--e-global-color-d9c2012, #E8F6EC);
	color: var(--e-global-color-938e6c1, #2A9150);
	font-size: 13px;
	font-weight: 700;
	padding: 6px 18px;
	border-radius: 30px;
	margin-bottom: 12px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.bdh-bk-tinh-toan-heading__title {
	margin: 0 0 10px;
	color: var(--e-global-color-d27c3cc, #1F2328);
	font-size: var(--e-global-typography-67f7cb1-font-size, 30px);
	font-weight: var(--e-global-typography-67f7cb1-font-weight, 700);
	line-height: var(--e-global-typography-67f7cb1-line-height, 1.35em);
}

.bdh-bk-tinh-toan-heading__desc {
	margin: 0 auto;
	max-width: 650px;
	color: var(--e-global-color-76ff1c6, #4B5563);
	font-size: var(--e-global-typography-afd6f4d-font-size, 16px);
	line-height: 1.6;
}

/* ==========================================================================
   3. MAIN CALCULATOR BOX (GRID LAYOUT)
   ========================================================================== */
.bdh-bk-tinh-toan-box {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 28px;
	background-color: var(--e-global-color-14ec4f2, #F8F9FA);
	padding: 32px;
	border-radius: 24px;
	border: 1px solid var(--e-global-color-fcc82ce, #E5E7EB);
}

/* ==========================================================================
   4. FORM PANEL
   ========================================================================== */
.bdh-bk-tinh-toan-form {
	background-color: var(--e-global-color-8d5d81d, #FFFFFF);
	border-radius: 20px;
	padding: 28px;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
	border: 1px solid var(--e-global-color-fcc82ce, #E5E7EB);
	display: flex;
	flex-direction: column;
}

.bdh-bk-tinh-toan-field {
	margin-bottom: 18px;
}

.bdh-bk-tinh-toan-field:last-of-type {
	margin-bottom: 24px;
}

.bdh-bk-tinh-toan-field label {
	display: block;
	margin-bottom: 8px;
	color: var(--e-global-color-d27c3cc, #1F2328);
	font-weight: 600;
	font-size: 14px;
	line-height: 1.4;
}

.bdh-bk-tinh-toan-field select,
.bdh-bk-tinh-toan-field input {
	width: 100%;
	height: 48px;
	border: 1px solid var(--e-global-color-fcc82ce, #E5E7EB);
	border-radius: 12px;
	padding: 0 14px;
	color: var(--e-global-color-d27c3cc, #1F2328);
	font-size: 15px;
	background-color: #FFFFFF;
	outline: none;
	transition: border-color 0.25s ease, box-shadow 0.25s ease;
	appearance: none;
	-webkit-appearance: none;
}

.bdh-bk-tinh-toan-field select {
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234B5563' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 14px center;
	background-size: 14px;
	padding-right: 38px;
	cursor: pointer;
}

.bdh-bk-tinh-toan-field select:focus,
.bdh-bk-tinh-toan-field input:focus {
	border-color: var(--e-global-color-1070229, #2CAC55);
	box-shadow: 0 0 0 3px rgba(44, 172, 85, 0.15);
}

.bdh-bk-tinh-toan-unit {
	position: relative;
	width: 100%;
}

.bdh-bk-tinh-toan-unit input {
	padding-right: 58px;
}

.bdh-bk-tinh-toan-unit span {
	position: absolute;
	right: 14px;
	top: 50%;
	transform: translateY(-50%);
	color: var(--e-global-color-76ff1c6, #4B5563);
	font-size: 14px;
	font-weight: 600;
	pointer-events: none;
}

/* Calculate Button */
.bdh-bk-tinh-toan-btn {
	width: 100%;
	height: 52px;
	border: none;
	border-radius: 999px;
	background: linear-gradient(135deg, var(--e-global-color-1070229, #2CAC55), var(--e-global-color-938e6c1, #2A9150));
	color: var(--e-global-color-8d5d81d, #FFFFFF);
	font-size: 16px;
	font-weight: 700;
	cursor: pointer;
	box-shadow: 0 8px 24px rgba(42, 145, 80, 0.28);
	transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 10px;
	margin-top: auto;
}

.bdh-bk-tinh-toan-btn:hover {
	transform: translateY(-2px);
	box-shadow: 0 12px 30px rgba(42, 145, 80, 0.38);
	background: linear-gradient(135deg, var(--e-global-color-938e6c1, #2A9150), var(--e-global-color-97923db, #1E6B3A));
}

.bdh-bk-tinh-toan-btn svg {
	width: 16px;
	height: 16px;
	fill: currentColor;
	transition: transform 0.25s ease;
}

.bdh-bk-tinh-toan-btn:hover svg {
	transform: translateX(4px);
}

/* ==========================================================================
   5. RESULT PANEL
   ========================================================================== */
.bdh-bk-tinh-toan-result {
	background-color: var(--e-global-color-8d5d81d, #FFFFFF);
	border-radius: 20px;
	padding: 28px;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
	border: 1px solid var(--e-global-color-fcc82ce, #E5E7EB);
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-height: 480px;
}

.bdh-bk-tinh-toan-result__header h3 {
	color: var(--e-global-color-d27c3cc, #1F2328);
	margin: 0 0 8px;
	font-size: 22px;
	font-weight: 700;
}

.bdh-bk-tinh-toan-result__header p {
	color: var(--e-global-color-76ff1c6, #4B5563);
	margin: 0 0 20px;
	font-size: 14px;
	line-height: 1.5;
}

/* Empty & Initial State */
.bdh-bk-tinh-toan-empty {
	height: 100%;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	color: var(--e-global-color-76ff1c6, #4B5563);
	padding: 30px 15px;
}

.bdh-bk-tinh-toan-empty__icon {
	width: 72px;
	height: 72px;
	border-radius: 50%;
	background-color: var(--e-global-color-d9c2012, #E8F6EC);
	color: var(--e-global-color-1070229, #2CAC55);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 32px;
	margin-bottom: 18px;
}

.bdh-bk-tinh-toan-empty__icon svg {
	width: 34px;
	height: 34px;
	fill: currentColor;
}

.bdh-bk-tinh-toan-empty--warning .bdh-bk-tinh-toan-empty__icon {
	background-color: #FFF3A8;
	color: #C9780F;
}

.bdh-bk-tinh-toan-empty h3 {
	color: var(--e-global-color-d27c3cc, #1F2328);
	margin: 0 0 8px;
	font-size: 20px;
	font-weight: 700;
}

.bdh-bk-tinh-toan-empty p {
	margin: 0;
	max-width: 320px;
	font-size: 14px;
	line-height: 1.6;
}

/* Results Grid */
.bdh-bk-tinh-toan-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
	margin-bottom: 20px;
}

.bdh-bk-tinh-toan-item {
	background-color: var(--e-global-color-14ec4f2, #F8F9FA);
	border-radius: 14px;
	padding: 16px;
	border: 1px solid var(--e-global-color-fcc82ce, #E5E7EB);
	transition: border-color 0.25s ease;
}

.bdh-bk-tinh-toan-item:hover {
	border-color: var(--e-global-color-1070229, #2CAC55);
}

.bdh-bk-tinh-toan-item span {
	display: block;
	color: var(--e-global-color-76ff1c6, #4B5563);
	font-size: 12px;
	font-weight: 500;
	margin-bottom: 6px;
}

.bdh-bk-tinh-toan-item strong {
	display: block;
	color: var(--e-global-color-d27c3cc, #1F2328);
	font-size: 20px;
	font-weight: 700;
	line-height: 1.2;
}

.bdh-bk-tinh-toan-item--highlight {
	background-color: var(--e-global-color-d9c2012, #E8F6EC);
	border-color: var(--e-global-color-5c987e6, #7FCB98);
}

.bdh-bk-tinh-toan-item--highlight strong {
	color: var(--e-global-color-97923db, #1E6B3A);
	font-size: 22px;
}

/* Note Alert */
.bdh-bk-tinh-toan-note {
	margin-bottom: 20px;
	padding: 14px 18px;
	border-radius: 14px;
	background-color: #FFFBE0;
	border: 1px solid #FFF3A8;
	color: #7a5800;
	font-size: 13px;
	line-height: 1.6;
}

.bdh-bk-tinh-toan-note strong {
	color: #000;
}

/* Contact CTA Box */
.bdh-bk-tinh-toan-contact {
	margin-top: auto;
	padding: 20px;
	border-radius: 16px;
	background: linear-gradient(135deg, var(--e-global-color-d8a07a2, #1F2A44), var(--e-global-color-c56fcef, #2F3E63));
	color: var(--e-global-color-8d5d81d, #FFFFFF);
}

.bdh-bk-tinh-toan-contact h4 {
	margin: 0 0 6px;
	font-size: 16px;
	font-weight: 700;
	color: #FFFFFF;
}

.bdh-bk-tinh-toan-contact p {
	margin: 0 0 14px;
	color: rgba(255, 255, 255, 0.85);
	font-size: 13px;
	line-height: 1.5;
}

.bdh-bk-tinh-toan-contact__btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 10px 22px;
	border-radius: 999px;
	background: linear-gradient(135deg, var(--e-global-color-1070229, #2CAC55), var(--e-global-color-938e6c1, #2A9150));
	color: #FFFFFF !important;
	font-size: 14px;
	font-weight: 700;
	text-decoration: none;
	box-shadow: 0 4px 14px rgba(44, 172, 85, 0.35);
	transition: all 0.25s ease;
}

.bdh-bk-tinh-toan-contact__btn:hover {
	background: linear-gradient(135deg, var(--e-global-color-938e6c1, #2A9150), var(--e-global-color-97923db, #1E6B3A));
	box-shadow: 0 6px 18px rgba(44, 172, 85, 0.45);
	transform: translateY(-1px);
}

.bdh-bk-tinh-toan-contact__btn svg {
	width: 14px;
	height: 14px;
	fill: currentColor;
}

/* ==========================================================================
   6. RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 900px) {
	.bdh-bk-tinh-toan-box {
		grid-template-columns: 1fr;
		gap: 20px;
		padding: 24px;
	}

	.bdh-bk-tinh-toan-result {
		min-height: auto;
	}
}

@media (max-width: 600px) {
	.bdh-bk-tinh-toan-box {
		padding: 16px;
		border-radius: 18px;
	}

	.bdh-bk-tinh-toan-form,
	.bdh-bk-tinh-toan-result {
		padding: 18px 16px;
		border-radius: 16px;
	}

	.bdh-bk-tinh-toan-grid {
		grid-template-columns: 1fr;
		gap: 10px;
	}

	.bdh-bk-tinh-toan-heading__title {
		font-size: 24px;
	}
}