/* Course shared: archive + single + page template. Palette #2e1758 / #f3edfc / #fef3de / #d3923a. */
.nhb-course { padding: 0 0 80px; }
.nhb-course .nhb-shell { max-width: 1400px; }
.nhb-course-hero { position: relative; margin: 0 -48px; padding: 28px 48px 36px; min-height: 380px; background: radial-gradient(circle at 78% 40%, rgba(253,236,205,.7) 0%, rgba(253,249,243,0) 55%), linear-gradient(100deg, #fffdf9 0%, #fdf8f0 60%, #fbf1e2 100%); border-radius: 18px; overflow: hidden; }
.nhb-course-hero .nhb-shell { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); align-items: stretch; gap: 24px; }
.nhb-course-hero__text { min-width: 0; }
.nhb-course-hero__crumbs { margin-bottom: 36px; }
.nhb-course-hero__eyebrow { display: flex; align-items: center; gap: 14px; margin: 0 0 14px; font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: #c3791a; }
.nhb-course-hero__eyebrow::before, .nhb-course-hero__eyebrow::after { content: ""; width: 70px; height: 1px; background: #d3923a; }
.nhb-course-hero__title { margin: 0 0 16px; font-family: "Playfair Display", Georgia, serif; font-size: clamp(40px,4.6vw,64px); font-weight: 800; line-height: 1.1; color: #2e1758; }
.nhb-course-hero__desc { max-width: 560px; font-size: 16.5px; line-height: 1.65; color: #334e8f; margin: 0 0 26px; }
.nhb-course-hero__points { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: nowrap; gap: 0; }
.nhb-course-hero__points li { display: flex; align-items: center; gap: 10px; font-size: 13px; line-height: 1.4; color: #2e1758; font-weight: 500; white-space: nowrap; }
.nhb-course-hero__points li + li { padding-left: 18px; margin-left: 18px; border-left: 1px solid #e6d9c3; }
.nhb-course-hero__icon { width: 40px; height: 40px; border-radius: 50%; background: #fff; color: #d3923a; display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: 0 4px 12px rgba(211,146,58,.12); }
.nhb-course-hero__icon svg { width: 20px; height: 20px; }
/* Hero: ảnh chân dung, trích dẫn và chữ ký bên phải */
.nhb-course-hero__media { position: relative; min-height: 320px; }
.nhb-course-hero__portrait { position: absolute; left: -13%; bottom: -15%; width: 77%; height: auto; object-fit: contain; }
.nhb-course-hero__quote { position: absolute; top: 2%; right: -30px; width: 60%; height: auto; z-index: 2; }
.nhb-course-hero__sign { position: absolute; top: 68%; right: 0; width: 40%; height: auto; z-index: 2; }
.nhb-course-body { margin-top: 40px; background: #f7f8fc; border: 1px solid #e6e9f4; border-radius: 18px; padding: 22px 24px 28px; }
.nhb-course-filter { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 30px; }
.nhb-course-filter__tab { display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: 999px; border: 1px solid #e2e8f0; background: #fff; color: #334e8f; font-size: 14px; font-weight: 600; text-decoration: none; }
.nhb-course-filter__tab svg { width: 16px; height: 16px; }
.nhb-course-filter__tab:hover { background: #f3edfc; border-color: #2e1758; color: #2e1758; }
.nhb-course-filter__tab.is-active { background: #2e1758; border-color: #2e1758; color: #fff; }
.nhb-course-filter__tab.is-active svg { color: #fff; }
.nhb-course-search { flex: 0 1 260px; width: 260px; max-width: 100%; display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 16px; border: 1px solid #e2e8f0; border-radius: 999px; background: #fff; box-sizing: border-box; }
.nhb-course-search svg { width: 18px; height: 18px; color: #646da0; flex-shrink: 0; }
.nhb-course-search input { flex: 1; min-width: 0; border: 0; outline: none; background: transparent; font-size: 14px; color: #1e293b; }
.nhb-course-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 18px; }
.nhb-course-card { display: flex; flex-direction: column; background: #fff; border: 1px solid #eceef6; border-radius: 14px; overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,.03); }
.nhb-course-card__cover { display: block; aspect-ratio: 16/9; background: #f3edfc; overflow: hidden; }
.nhb-course-card__cover img { display: block; width: 100%; height: 100%; object-fit: cover; }
.nhb-course-card__placeholder { display: flex; align-items: center; justify-content: center; height: 100%; padding: 20px; text-align: center; font-family: "Playfair Display", Georgia, serif; font-size: 18px; font-weight: 700; color: #2e1758; }
.nhb-course-card__body { display: flex; flex-direction: column; gap: 8px; padding: 18px; flex: 1; }
.nhb-course-card__title { margin: 0; font-family: "Playfair Display", Georgia, serif; font-size: 17px; }
.nhb-course-card__title a { color: #2e1758; text-decoration: none; }
.nhb-course-card__excerpt { margin: 0; font-size: 12.5px; line-height: 1.55; color: #475569; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.nhb-course-card__tag { align-self: flex-start; padding: 2px 8px; border-radius: 999px; background: #f3edfc; color: #2e1758; font-size: 10px; font-weight: 600; line-height: 1.4; margin-bottom: 8px; }
.nhb-course-card__actions { margin-top: auto; padding-top: 12px; min-height: 52px; display: flex; align-items: flex-end; }
.nhb-course-card__btn { display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px; border: 1px solid #c7c9e8; color: #2e1758; font-size: 12.5px; font-weight: 600; text-decoration: none; }
.nhb-course-card__btn:hover { background: #2e1758; border-color: #2e1758; color: #fff; }
.nhb-course-empty { grid-column: 1/-1; text-align: center; color: #646da0; padding: 40px 0; }
@media (max-width: 1280px) { .nhb-course-grid { grid-template-columns: repeat(3,minmax(0,1fr)); } }
@media (max-width: 1080px) { .nhb-course-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 768px) { .nhb-course-hero { margin: 0 -16px; padding: 20px 16px 32px; } .nhb-course-body { padding: 16px; } }
@media (max-width: 640px) { .nhb-course-grid { grid-template-columns: 1fr; } }

/* Hàng bộ lọc dropdown + nút Lọc */
.nhb-course-selects { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)) auto; gap: 12px; align-items: end; margin: 0 0 30px; }
.nhb-course-select { display: flex; flex-direction: column; gap: 6px; font-size: 12px; font-weight: 600; color: #646da0; }
.nhb-course-select select { height: 44px; padding: 0 12px; border: 1px solid #e2e8f0; border-radius: 10px; background: #fff; color: #2e1758; font-size: 14px; font-weight: 600; }
.nhb-course-select select:focus { outline: 2px solid #2e1758; outline-offset: 1px; }
.nhb-course-selects__actions { display: flex; gap: 12px; justify-content: flex-end; align-items: center; height: 44px; }
.nhb-course-selects__submit { height: 44px; min-width: 160px; padding: 0 22px; border: 0; border-radius: 999px; background: #2e1758; color: #fff; font-size: 14px; font-weight: 700; cursor: pointer; }
.nhb-course-selects__submit:hover { background: #1d0d3d; }
.nhb-course-selects__reset { font-size: 14px; font-weight: 600; color: #b91c1c; text-decoration: underline; }
.nhb-course-selects__reset:hover { color: #7f1d1d; }
@media (max-width: 1080px) { .nhb-course-selects { grid-template-columns: repeat(3, minmax(0, 1fr)); } .nhb-course-selects__actions { grid-column: 1 / -1; justify-content: flex-start; } }
@media (max-width: 640px) { .nhb-course-selects { grid-template-columns: repeat(2, minmax(0, 1fr)); } .nhb-course-selects__actions { grid-column: 1 / -1; justify-content: stretch; } .nhb-course-selects__submit { flex: 1; } }

/* Badge "Nổi bật" cho khóa ghim: chữ đỏ đậm, nền đỏ nhạt */
.nhb-course-card { position: relative; }
.nhb-course-badge { position: absolute; top: 12px; left: 12px; z-index: 2; padding: 5px 12px; border-radius: 999px; background: #fee2e2; color: #b91c1c; font-size: 12px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }

/* Dòng meta dưới mô tả thẻ khóa học: icon + chữ nhỏ */
.nhb-course-card__meta { list-style: none; margin: 10px 0 0; padding: 10px 0 0; border-top: 1px solid #eceef6; display: flex; flex-direction: column; gap: 6px; }
.nhb-course-card__meta li { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: #2e1758; font-weight: 600; }
.nhb-course-card__meta svg { width: 15px; height: 15px; flex-shrink: 0; color: #2e1758; }

/* Giá trên thẻ khóa học: giá giảm đỏ đậm, giá gốc gạch ngang */
.nhb-course-card__price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; margin: 0; }
.nhb-course-card__price-now { font-size: 17px; font-weight: 800; color: #b91c1c; }
.nhb-course-card__price-old { font-size: 13px; color: #94a3b8; text-decoration: line-through; }

@media (max-width: 1024px) {
	.nhb-course-hero .nhb-shell {
		grid-template-columns: 1fr;
	}
	.nhb-course-hero__points {
		display: flex;
		flex-direction: row;
		flex-wrap: nowrap;
		align-items: center;
		gap: 0;
	}
	.nhb-course-hero__points li {
		white-space: nowrap;
		font-size: 12.5px;
	}
	.nhb-course-hero__points li + li {
		padding-left: 16px;
		margin-left: 16px;
		border-left: 1px solid #e6d9c3;
	}
	.nhb-course-hero__media {
		width: 100%;
		max-width: 460px;
		min-height: 320px;
		margin: 28px auto 0;
	}
	.nhb-course-hero__portrait {
		bottom: 0;
		left: -8%;
	}
	.nhb-course-hero__quote {
		right: -10px;
	}
}

@media (max-width: 640px) {
	.nhb-course-hero__points {
		flex-direction: column;
		align-items: flex-start;
		gap: 12px;
	}
	.nhb-course-hero__points li {
		white-space: normal;
	}
	.nhb-course-hero__points li + li {
		padding-left: 0;
		margin-left: 0;
		border-left: none;
	}
}

@media (max-width: 600px) {
	.nhb-course-hero__media {
		max-width: 340px;
		min-height: 250px;
		margin: 20px auto 0;
	}
	.nhb-course-hero__portrait {
		width: 76%;
		left: -6%;
	}
	.nhb-course-hero__quote {
		width: 58%;
		right: 0;
	}
	.nhb-course-hero__sign {
		width: 38%;
	}
}