/* Header trang chủ: cùng kiểu header trang hccd (assets/shared/site-chrome.css).
   Tiền tố .mh- để không ảnh hưởng Bootstrap 3 của trang. */
.mh-header {
	--mh-red-deep: #6f0919;
	--mh-yellow: #ffc000;
	--mh-red: #e51d2a;
	--mh-h: 76px;
	--mh-h-sm: 62px;
	position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--mh-h);
	background: linear-gradient(135deg, var(--mh-red-deep), #d21628);
	border-bottom: 1px solid rgba(255, 255, 255, .18);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	line-height: 1.6;
	transition: height .3s ease, background .3s ease, box-shadow .3s ease;
}
.mh-header *, .mh-header *::before, .mh-header *::after { box-sizing: border-box; }
.mh-header::after {
	content: ""; position: absolute; left: 0; bottom: -1px; width: 100%; height: 3px;
	background: linear-gradient(90deg, #fff 0 8%, var(--mh-yellow) 8% 16%, transparent 40%);
}
.mh-header.is-scrolled {
	height: var(--mh-h-sm);
	background: rgba(130, 8, 26, .66);
	-webkit-backdrop-filter: blur(16px) saturate(1.5);
	backdrop-filter: blur(16px) saturate(1.5);
	box-shadow: 0 12px 36px rgba(60, 0, 10, .22);
}
.mh-inner {
	width: min(1240px, calc(100% - 40px)); height: 100%; margin: 0 auto;
	display: flex; align-items: center; gap: 28px;
}
.mh-brand { display: flex; align-items: center; height: 100%; }
.mh-brand img { height: calc(100% - 14px); width: auto; max-width: none; transition: height .3s; }
.mh-nav { display: flex; gap: 4px; margin: 0 0 0 auto; padding: 0; list-style: none; }
.mh-nav a {
	display: block; padding: 8px 14px; border-radius: 999px; color: rgba(255, 255, 255, .88);
	font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: .3px;
	cursor: pointer; text-decoration: none; transition: color .2s, background .2s;
}
.mh-nav a:hover, .mh-nav a:focus { color: #fff; background: rgba(255, 255, 255, .12); text-decoration: none; }
.mh-cta {
	display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: 999px;
	background: var(--mh-yellow); color: #3b0d16; font-size: 14px; font-weight: 700; text-decoration: none;
	transition: transform .2s, background .2s;
}
.mh-cta:hover, .mh-cta:focus { background: #ffd24d; color: #3b0d16; text-decoration: none; transform: translateY(-2px); }
.mh-cta-icon {
	width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
	background: var(--mh-red); color: #fff; font-size: 12px; line-height: 1;
}
.mh-toggle {
	display: none; margin-left: auto; width: 44px; height: 44px; padding: 0;
	border: 1px solid rgba(255, 255, 255, .3); border-radius: 12px; background: rgba(255, 255, 255, .1); cursor: pointer;
}
.mh-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: #fff; transition: transform .25s, opacity .25s; }
.mh-open .mh-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mh-open .mh-toggle span:nth-child(2) { opacity: 0; }
.mh-open .mh-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1080px) {
	.mh-inner { gap: 14px; }
	.mh-nav a { padding: 8px 10px; }
}
@media (max-width: 860px) {
	.mh-toggle { display: block; }
	.mh-cta { margin-left: auto; padding: 8px 14px; }
	.mh-toggle { margin-left: 0; }
	.mh-nav {
		position: absolute; top: 100%; left: 0; right: 0; margin: 0; padding: 12px 20px 20px; flex-direction: column;
		background: rgba(110, 6, 22, .96); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
		transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .25s, transform .25s, visibility .25s;
	}
	.mh-open .mh-nav { opacity: 1; transform: none; visibility: visible; }
	.mh-nav a { padding: 13px 14px; font-size: 15px; }
}
@media (max-width: 430px) {
	.mh-cta-label { display: none; }
	.mh-cta { padding: 8px; }
}