/* ==========================================================================
   ULRICH RACING — Site header / navigation
   Floating liquid-glass bar (terminal-industries rounded-rectangle shape)
   · glass submenus · animated hamburger · full-screen mobile sheet
   ========================================================================== */

.site-header {
	position: fixed;
	inset-inline: 0;
	top: 0;
	z-index: var(--z-header);
	padding: clamp(0.5rem, 1vw, 0.9rem) var(--pad-x);
	pointer-events: none;
}

.site-header__inner {
	pointer-events: auto;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: clamp(1.5rem, 4vw, 3.5rem);
	width: 100%;
	max-width: max-content;              /* hug the content — no dead space */
	margin-inline: auto;
	height: var(--header-h);
	padding: 0 0.7rem 0 1.5rem;
	border-radius: var(--r-lg);          /* rounded rectangle */

	/* Clear liquid glass — blur only, no darkening tint. */
	background: transparent;
	border: 0;
	-webkit-backdrop-filter: blur(20px) saturate(118%);
	backdrop-filter: blur(20px) saturate(118%);
	box-shadow:
		0 1px 0 0 rgba(255, 255, 255, 0.12) inset,
		0 18px 50px -24px rgba(0, 0, 0, 0.45);
}

/* --- Brand --------------------------------------------------------------- */
.brand {
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	line-height: 1;
	white-space: nowrap;
	color: var(--c-text);
}
.brand__logo { height: clamp(1.4rem, 1.8vw, 2rem); width: auto; }
.brand__text { display: flex; flex-direction: column; gap: 0.18em; }
.brand__text .grad {
	font-family: var(--font-display);
	font-weight: 400;
	font-size: clamp(1.1rem, 0.95rem + 0.5vw, 1.5rem);
	letter-spacing: 0.03em;
	text-transform: uppercase;
	color: var(--c-text);
}
.brand__text small {
	font-family: var(--font-display);
	font-size: 0.56em;
	font-weight: 400;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--c-dim);
}

/* --- Primary navigation -------------------------------------------------- */
.primary-nav { display: flex; }
.primary-nav > ul {
	display: flex;
	align-items: center;
	gap: clamp(0.1rem, 0.5vw, 0.4rem);
	list-style: none; margin: 0; padding: 0;
}
.primary-nav .menu-item { position: relative; }

.primary-nav a {
	position: relative;
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	padding: 0.45rem 0.8rem;
	border-radius: var(--r-sm);
	font-family: var(--font-display);
	font-size: var(--fs-small);
	font-weight: 400;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--c-text);              /* 100% white */
	transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.primary-nav a:hover { background: rgba(255, 255, 255, 0.08); }
.primary-nav .current-menu-item > a,
.primary-nav .current-menu-parent > a { color: var(--c-red); }

.primary-nav .menu-item-has-children > a::after {
	content: "";
	width: 0.38em; height: 0.38em;
	border-right: 1.5px solid currentColor;
	border-bottom: 1.5px solid currentColor;
	transform: translateY(-2px) rotate(45deg);
	transition: transform var(--dur-fast) var(--ease);
	opacity: 0.6;
}
.primary-nav .menu-item-has-children:hover > a::after { transform: translateY(0) rotate(225deg); }

/* --- Submenus (inherit the same liquid glass) ---------------------------- */
.primary-nav .sub-menu {
	position: absolute;
	top: calc(100% + 0.6rem);
	left: 50%;
	transform: translateX(-50%) translateY(8px);
	min-width: 13rem;
	padding: 0.4rem;
	list-style: none; margin: 0;
	border-radius: var(--r);

	background: rgba(12, 14, 17, 0.7);
	border: 1px solid var(--glass-border);
	-webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
	backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
	box-shadow: var(--glass-shadow);

	opacity: 0; visibility: hidden; pointer-events: none;
	transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), visibility var(--dur-fast);
	z-index: var(--z-overlay);
}
.primary-nav .sub-menu::before { content: ""; position: absolute; left: 0; right: 0; top: -0.75rem; height: 0.75rem; }
.primary-nav .menu-item-has-children:hover > .sub-menu,
.primary-nav .menu-item-has-children:focus-within > .sub-menu {
	opacity: 1; visibility: visible; pointer-events: auto;
	transform: translateX(-50%) translateY(0);
}
.primary-nav .sub-menu a { display: block; width: 100%; padding: 0.55rem 0.8rem; border-radius: var(--r-sm); color: var(--c-text); }
.primary-nav .sub-menu a:hover { background: rgba(255, 255, 255, 0.08); }
.primary-nav .sub-menu .sub-menu { top: -0.4rem; left: calc(100% + 0.4rem); transform: translateY(8px); }
.primary-nav .sub-menu .menu-item-has-children:hover > .sub-menu { transform: translateY(0); }

/* --- Header actions ------------------------------------------------------ */
.header-actions { display: flex; align-items: center; gap: 0.4rem; }

.nav-icon-btn {
	display: inline-grid; place-items: center;
	width: 2.4rem; height: 2.4rem;
	border-radius: var(--r-sm);
	color: var(--c-text);
	border: 1px solid var(--glass-border);
	background: rgba(255, 255, 255, 0.04);
	transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.nav-icon-btn:hover { background: var(--c-text); color: var(--c-bg); transform: translateY(-2px); }

.nav-cta {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.5rem 1rem;
	border-radius: var(--r-sm);
	font-family: var(--font-display);
	font-size: var(--fs-small);
	font-weight: 400;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--c-bg);
	background: var(--c-text);
	border: 1px solid transparent;
	white-space: nowrap;
	transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -12px rgba(255,255,255,0.5); }

/* --- Hamburger ----------------------------------------------------------- */
.nav-toggle {
	--bar: 1.6px;
	display: none;
	position: relative;
	width: 2.6rem; height: 2.6rem;
	border-radius: var(--r-sm);
	background: rgba(255, 255, 255, 0.04);
	border: 1px solid var(--glass-border);
	flex: none;
}
.nav-toggle span {
	position: absolute; left: 50%; top: 50%;
	width: 1.05rem; height: var(--bar);
	background: var(--c-text); border-radius: 2px;
	transform: translate(-50%, -50%);
	transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle span:nth-child(1) { transform: translate(-50%, calc(-50% - 5px)); }
.nav-toggle span:nth-child(3) { transform: translate(-50%, calc(-50% + 5px)); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translate(-50%, -50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: translate(-50%, -50%) scaleX(0.2); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translate(-50%, -50%) rotate(-45deg); }

/* --- Mobile sheet -------------------------------------------------------- */
.mobile-menu {
	position: fixed; inset: 0; z-index: var(--z-overlay);
	display: flex; flex-direction: column;
	padding:
		calc(var(--header-h) + clamp(0.25rem, 1vh, 0.6rem))
		var(--pad-x)
		max(0.6rem, env(safe-area-inset-bottom));
	background: rgba(6, 7, 8, 0.78);
	-webkit-backdrop-filter: blur(24px) saturate(var(--glass-sat));
	backdrop-filter: blur(24px) saturate(var(--glass-sat));
	overflow: hidden;
	opacity: 0; visibility: hidden; pointer-events: none;
	transition: opacity var(--dur) var(--ease), visibility var(--dur);
}
.mobile-menu.is-open { opacity: 1; visibility: visible; pointer-events: auto; }
body.menu-open { overflow: hidden; }

.mobile-menu__close {
	position: absolute;
	top: clamp(0.5rem, 1vw, 0.9rem);
	right: var(--pad-x);
	z-index: 2;
	display: inline-grid; place-items: center;
	width: 2.6rem; height: 2.6rem;
	border-radius: var(--r-sm);
	background: rgba(255, 255, 255, 0.04);
	border: 1px solid var(--glass-border);
	color: var(--c-text);
	cursor: pointer;
	transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.mobile-menu__close:hover { background: var(--c-text); color: var(--c-bg); }

.mobile-menu__nav {
	flex: 1;
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-height: 0;
	overflow: hidden;
}

.mobile-menu__list {
	list-style: none; margin: 0; padding: 0;
	display: flex; flex-direction: column; justify-content: space-evenly;
	flex: 1; min-height: 0;
}
.mobile-menu__list a {
	display: block;
	padding: clamp(0.1rem, 0.7vh, 0.35rem) 0.2rem;
	font-family: var(--font-display);
	font-size: clamp(0.95rem, 3.5vh, 1.35rem);
	font-weight: 400;
	letter-spacing: 0.02em;
	text-transform: uppercase;
	color: var(--c-text);
	border-bottom: 1px solid var(--c-line);
	opacity: 0; transform: translateY(16px);
}
.mobile-menu.is-open .mobile-menu__list a { animation: m-in 0.5s var(--ease-out) forwards; }
.mobile-menu__list li:nth-child(1) a { animation-delay: 0.05s; }
.mobile-menu__list li:nth-child(2) a { animation-delay: 0.10s; }
.mobile-menu__list li:nth-child(3) a { animation-delay: 0.15s; }
.mobile-menu__list li:nth-child(4) a { animation-delay: 0.20s; }
.mobile-menu__list li:nth-child(5) a { animation-delay: 0.25s; }
.mobile-menu__list li:nth-child(6) a { animation-delay: 0.30s; }
.mobile-menu__list li:nth-child(7) a { animation-delay: 0.35s; }
.mobile-menu__list li:nth-child(8) a { animation-delay: 0.40s; }
.mobile-menu__list li:nth-child(9) a { animation-delay: 0.45s; }
.mobile-menu__list .sub-menu { padding-left: 1rem; }
.mobile-menu__list .sub-menu a { font-size: 1.1rem; color: var(--c-muted); border-bottom: 0; }
@keyframes m-in { to { opacity: 1; transform: none; } }

.mobile-menu__footer {
	flex: none;
	display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem;
	align-items: center; justify-content: space-between;
	padding-top: clamp(0.25rem, 1vh, 0.5rem);
}

/* --- Responsive switch --------------------------------------------------- */
@media (max-width: 1100px) {
	.primary-nav, .nav-cta { display: none; }
	.nav-toggle { display: inline-flex; }
}
@media (min-width: 1101px) { .mobile-menu { display: none; } }