.course-container {
	width: 100%;
	margin: 0 auto;
	box-sizing: border-box;
}

.course-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.course-card {
	background-color: var(--color-white);
	border-radius: 12px;
	overflow: hidden;
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
	display: flex;
	flex-direction: column;
	border: 1px solid #eef2f6;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Hover khung card */
.course-card:hover {
	transform: translateY(-4px);
	box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* Cấu trúc ảnh banner hỗ trợ hiệu ứng zoom */
.card-banner {
	height: 200px;
	position: relative;
	overflow: hidden;
	display: flex;
	align-items: flex-end;
	padding: 16px;
	color: var(--color-white);
}

.banner-bg {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-size: cover;
	background-position: center;
	z-index: 1;
	transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Thực hiện Zoom ảnh nhẹ khi Hover vào Card */
.course-card:hover .banner-bg {
	transform: scale(1.08);
}

.banner-content {
	z-index: 2;
	width: 100%;
}

.series-tag {
	font-family: 'Inter 24';
	font-size: 11px;
	text-transform: uppercase;
	font-weight: 700;
	letter-spacing: 0.5px;
	opacity: 0.85;
	display: block;
	margin-bottom: 6px;
}

.course-title {
	color: var(--color-white);
	font-size: 17px;
	font-weight: 700;
	margin: 0;
	line-height: 1.4;
	text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.card-body {
	padding: 20px;
	display: flex;
	flex-direction: column;
	flex-grow: 1;
}

.course-desc {
	font-family: 'Inter 24';
	font-size: 15px;
	color: var(--color-black);
	font-weight: 600;
	line-height: 1.5;
	margin: 0 0 16px 0;
	min-height: 40px;
}

.course-meta {
	display: flex;
	justify-content: space-between;
	margin-bottom: 16px;
	padding-bottom: 12px;
	border-bottom: 1px dashed #eef2f6;
}

.meta-item {
	font-size: 12.5px;
	color: var(--color-deep-navy);
	display: flex;
	align-items: center;
	gap: 6px;
}

.meta-item i {
	color: var(--color-teal);
}

.schedule-box {
	margin-bottom: 16px;
}

.schedule-title {
	font-family: 'Inter 24';
	font-size: 14px;
	font-weight: 700;
	color: var(--color-deep-navy);
	display: flex;
	align-items: center;
	gap: 6px;
	margin-bottom: 8px;
}

.schedule-title i {
	color: var(--color-teal);
}

.schedule-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.tag-loc, .tag-live {
	font-family: 'Inter 24';
	font-size: 13px;
	font-weight: 600;
	padding: 4px 10px;
	border-radius: 4px;
}

.tag-loc {
	background-color: var(--color-light-blue);
	color: var(--color-indigo);
}

.tag-live {
	background-color: #f1f3f5;
	color: #495057;
	border: 1px solid #dee2e6;
}

.instructor-box {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 16px;
	padding-top: 12px;
	border-top: 1px solid #f1f3f5;
}

.inst-avatar {
	width: 40px;
	height: 40px;
	border-radius: 50%;
	object-fit: cover;
}

.inst-info {
	flex-grow: 1;
}

.inst-name {
	font-size: 15px;
	font-weight: 600;
	color: var(--color-deep-navy);
	margin: 0 0 2px 0;
}

.inst-title {
	font-size: 13px;
	color: var(--color-slate-gray);
	margin: 0;
	display: -webkit-box;
	-webkit-line-clamp: 1;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

/* Tối ưu hiển thị Giá bán và Ưu đãi nằm cùng một hàng */
.price-box {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-top: auto;
	margin-bottom: 16px;
	padding-top: 12px;
	border-top: 1px solid #f1f3f5;
}

.price-wrapper {
	display: flex;
	flex-direction: row;
	align-items: baseline;
	gap: 8px;
}

.old-price {
	font-size: 11.5px;
	text-decoration: line-through;
	color: var(--color-slate-gray);
}

.new-price {
	font-size: 15.5px;
	font-weight: 700;
	color: var(--color-teal);
	display: flex;
	align-items: center;
}

.discount-badge {
	font-size: 11px;
	font-weight: 700;
	background-color: #e6fcf5;
	color: #0ca678;
	padding: 4px 8px;
	border-radius: 6px;
	border: 1px solid #c3fae8;
	white-space: nowrap;
}

.card-actions {
	display: flex;
	gap: 10px;
}

.btn {
	font-family: 'Inter 24';
	flex: 1;
	text-align: center;
	padding: 5px 10px;
	border-radius: 12px;
	font-size: 12px;
	font-weight: 600;
	text-decoration: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	margin-bottom: 0;
}

.btn-detail {
	background-color: var(--color-white);
	color: var(--color-deep-navy);
	border: 1px solid #dee2e6;
	transition: background-color 0.2s;
}

.btn-detail:hover {
	color: var(--color-indigo);
	background-color: var(--color-brand-white);
}

.btn-register {
	background-color: var(--color-teal);
	color: var(--color-white);
	transition: background-color 0.2s;
}

.btn-register:hover {
	color: var(--color-white);
	background-color: var(--color-indigo);
}

/* Responsive */
@media (max-width: 992px) {
	.course-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 20px;
	}
}

@media (max-width: 650px) {
	.course-grid {
		grid-template-columns: 1fr;
		gap: 16px;
	}

	.price-box {
		flex-wrap: wrap;
		gap: 8px;
	}
}

/* POPUP MODAL ĐĂNG KÝ KHÓA HỌC - TIÊU CHUẨN MÃ MÀU HỆ THỐNG */
/* Lớp phủ nền tối phía sau */
.course-modal-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(27, 42, 78, 0.6); 
	z-index: 99999;
	display: flex;
	justify-content: center;
	align-items: center;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.3s ease;
	padding: 16px;
	box-sizing: border-box;
}

/* Kích hoạt hiển thị Popup */
.course-modal-overlay.active {
	opacity: 1;
	pointer-events: auto;
}

/* Khung nội dung Popup */
.course-modal-content {
	background-color: var(--color-white);
	width: 100%;
	max-width: 680px;
	border-radius: 24px;
	padding: 10px 15px;
	box-shadow: 0 10px 40px rgba(27, 42, 78, 0.15);
	position: relative;
	max-height: 100vh;
	overflow-y: auto;
	box-sizing: border-box;
	transform: translateY(20px);
	transition: transform 0.3s ease;
}

.course-modal-overlay.active .course-modal-content {
	transform: translateY(0);
}

/* Nút Đóng Popup (X) */
.course-modal-close {
	position: absolute;
	top: 3%;
	right: 20px;
	background-color: var(--color-brand-white);
	border: none;
	margin-right: 0;
	margin-bottom: 0;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	font-size: 18px;
	color: var(--color-slate-gray);
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background-color 0.2s, color 0.2s;
	z-index: 10;
}

.course-modal-close:hover {
	background-color: var(--color-light-blue);
	color: var(--color-deep-navy);
}

/* Tiêu đề Popup */
.course-modal-header {
	text-align: center;
	margin-bottom: 10px;
}

.course-modal-header h2 {
	color: var(--color-deep-navy);
	font-size: 22px;
	font-weight: 800;
	margin: 0 0 6px 0;
	letter-spacing: 0.5px;
}

.course-modal-header h3 {
	color: var(--color-teal);
	font-size: 16px;
	font-weight: 700;
	margin: 0;
}

/* Khung tóm tắt thông tin trên cùng */
.course-summary-box {
	background-color: var(--color-brand-white);
	border: 1px solid var(--color-light-blue);
	border-radius: 14px;
	padding: 5px 10px;
	display: grid;
	grid-template-columns: 1.2fr 1fr 1.3fr;
	gap: 12px;
	margin-bottom: 10px;
}

.summary-item {
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.summary-item:not(:last-child) {
	border-right: 1px solid var(--color-light-blue);
	padding-right: 10px;
}

.summary-label {
	font-size: 11px;
	color: var(--color-slate-gray);
	margin-bottom: 4px;
}

.summary-val {
	font-size: 13px;
	font-weight: 600;
	color: var(--color-deep-navy);
	display: flex;
	align-items: center;
	gap: 6px;
}

.summary-val i {
	color: var(--color-teal);
}

.summary-val-price {
	font-size: 16px;
	font-weight: 800;
	color: var(--color-teal);
}

.summary-val-old {
	font-size: 11px;
	text-decoration: line-through;
	color: var(--color-slate-gray);
	margin-left: 4px;
}

/* Hình thức học & Lịch khai giảng */
.form-section {
	margin-bottom: 10px;
}

.section-title {
	display: block;
	font-size: 13px;
	font-weight: 700;
	color: var(--color-deep-navy);
	margin-bottom: 10px;
}

.method-selector-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
}

.method-option-card {
	border: 1px solid var(--color-light-blue);
	background-color: var(--color-brand-white);
	border-radius: 12px;
	padding: 10px 16px;
	cursor: pointer;
	transition: all 0.2s ease;
}

.method-option-card:hover {
	background-color: var(--color-white);
	border-color: var(--color-silver-blue);
}

/* Trạng thái được chọn (Active) */
.method-option-card.active {
	background-color: var(--color-white);
	border-color: var(--color-teal);
	box-shadow: 0 0 0 1px var(--color-teal);
}

.option-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 6px;
}

.option-title {
	font-size: 12.5px;
	font-weight: 700;
	color: var(--color-deep-navy);
	display: flex;
	align-items: center;
	gap: 6px;
}

.option-title i {
	color: var(--color-teal);
}

.option-badge {
	font-size: 11px;
	font-weight: 700;
	padding: 2px 8px;
	border-radius: 4px;
}

.badge-green {
	background-color: #e6fcf5;
	color: #0ca678;
}

.badge-blue {
	background-color: var(--color-light-blue);
	color: var(--color-teal);
}

.option-desc {
	font-size: 11.5px;
	color: var(--color-slate-gray);
	margin: 0;
	line-height: 1.4;
}

/* Các trường input trong form */
.form-fields-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 10px;
	margin-bottom: 15px;
}

.form-group {
	display: flex;
	flex-direction: column;
}

.form-group.full-width {
	grid-column: span 2;
	margin-bottom: 10px;
}

.form-group label {
	font-size: 12.5px;
	font-weight: 700;
	color: var(--color-deep-navy);
}

/* Khung Input có Icon ở đầu */
.input-icon-wrapper {
	position: relative;
	width: 100%;
}

.input-icon-wrapper i {
	position: absolute;
	left: 14px;
	top: 50%;
	transform: translateY(-50%);
	color: var(--color-slate-gray);
	font-size: 14px;
}

.input-icon-wrapper input {
	width: 100%;
	padding: 12px 12px 12px 38px !important;
	border: 1px solid var(--color-light-blue) !important;
	background: var(--color-brand-white) !important;
	border-radius: 10px !important;
	font-size: 13.5px !important;
	color: var(--color-deep-navy) !important;
	margin-bottom: 0;
	box-sizing: border-box;
	transition: border-color 0.2s, background-color 0.2s !important;
}

.input-icon-wrapper input:focus {
	outline: none;
	border-color: var(--color-teal);
	background-color: var(--color-white);
}

.form-group textarea {
	width: 100%;
	padding: 12px;
	border: 1px solid var(--color-light-blue);
	background-color: var(--color-brand-white);
	border-radius: 10px;
	font-size: 13px;
	color: var(--color-deep-navy);
	box-sizing: border-box;
	margin-bottom: 0;
	resize: none;
	transition: border-color 0.2s, background-color 0.2s;
}

.form-group textarea:focus {
	outline: none;
	border-color: var(--color-teal);
	background-color: var(--color-white);
}

/* Banner Quà tặng / Ưu đãi */
.gift-promo-banner {
	background-color: #fffbeb;
	border: 1px solid #fef3c7;
	border-radius: 12px;
	padding: 14px 16px;
	display: flex;
	gap: 12px;
	align-items: flex-start;
	margin-bottom: 24px;
}

.gift-icon {
	font-size: 18px;
	color: #d97706;
	margin-top: 2px;
}

.gift-text {
	font-size: 12px;
	color: #b45309;
	line-height: 1.5;
	font-weight: 500;
}

/* Nút Đăng Ký chính trong Popup */
.btn-submit-modal {
	width: 100%;
	background: var(--color-teal);
	color: var(--color-white);
	margin-bottom: 0;
	border: none;
	border-radius: 12px;
	padding: 10px 15px;
	font-size: 14px;
	font-weight: 700;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	box-shadow: 0 4px 14px rgba(0, 119, 255, 0.25);
	transition: background-color 0.2s, transform 0.1s;
}

.btn-submit-modal:hover {
	background-color: var(--color-indigo);
}

.btn-submit-modal:active {
	transform: scale(0.99);
}

.btn-submit-modal:disabled {
	background-color: var(--color-slate-gray);
	cursor: not-allowed;
	box-shadow: none;
	opacity: 0.6;
}

/* Ghi chú bảo mật phía dưới cùng */
.security-note {
	text-align: center;
	font-size: 11px;
	color: var(--color-slate-gray);
	margin: 14px 0 0 0;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
}

.security-note i {
	color: #10b981;
}

/* Tương thích Responsive (Mobile & Tablet) */
@media (max-width: 768px) {
	.course-summary-box {
		grid-template-columns: 1fr;
		gap: 8px;
		padding: 12px;
	}

	.summary-item:not(:last-child) {
		border-right: none;
		border-bottom: 1px solid var(--color-light-blue);
		padding-right: 0;
		padding-bottom: 8px;
	}

	.method-selector-grid {
		grid-template-columns: 1fr;
		gap: 12px;
	}

	.form-fields-grid {
		gap: 12px;
	}

	.form-group.full-width {
		grid-column: span 1;
	}

	.course-modal-header h2 {
		font-size: 13px;
	}

	.course-modal-header h3 {
		font-size: 11px;
	}

	.btn-submit-modal {
		font-size: 10px;
	}

	.security-note {
		font-size: 9px;
	}

	.course-modal-close {
		top: 1%;
		right: 10px;
		font-size: 15px;
	}
}