/* ==========================================================================
   SUDAIR PHARMA — SITE HEADER
   Bespoke corporate header. 12-column grid, single-line navigation, mega menus,
   sticky with a shadow that appears only once the page has scrolled.
   ========================================================================== */

:root {
	--sud-hd-h: 86px;          /* brief: 80–90px */
	--sud-hd-h-mobile: 68px;
}

/* --------------------------------------------------------------------------
   Shell
   -------------------------------------------------------------------------- */

.sud-hd {
	position: sticky;
	top: 0;
	z-index: 200;
	background: var(--sud-surface);
	border-bottom: 1px solid var(--sud-line);
	transition: box-shadow .35s var(--sud-ease),
	            border-color .35s var(--sud-ease);
}

/* Shadow only after scroll — flat at rest, lifted in motion */
.sud-hd.is-stuck {
	box-shadow: 0 1px 2px rgba(11, 31, 23, .04), 0 8px 28px rgba(11, 31, 23, .08);
	border-bottom-color: transparent;
}

/* The 12-column grid the brief asks for.
 *
 * Still twelve tracks, but the first and last carry a minimum so the logo and
 * the CTA are never squeezed — and, more usefully, so the nav gets ten tracks
 * instead of eight. Seven top-level items (Home plus six sections) measured
 * 787px against the 764px an eight-track span allowed; widening the nav is the
 * honest fix, rather than shrinking the type until it fits. */
.sud-hd__grid {
	max-width: var(--sud-maxw);
	margin-inline: auto;
	padding-inline: clamp(1.25rem, 3vw, 2.5rem);
	block-size: var(--sud-hd-h);

	display: grid;
	grid-template-columns:
		minmax(112px, 1fr)          /* 1  — logo   */
		repeat(10, 1fr)             /* 2–11 — nav  */
		minmax(136px, 1fr);         /* 12 — actions */
	align-items: center;
	column-gap: clamp(0.75rem, 1.4vw, 1.25rem);
}

.sud-hd__logo    { grid-column: 1 / 2;  display: flex; align-items: center; }
.sud-hd__nav     { grid-column: 2 / 12; display: flex; justify-content: center; min-width: 0; }
.sud-hd__actions { grid-column: 12 / -1; display: flex; align-items: center; justify-content: flex-end; gap: var(--sud-3); }

/* --------------------------------------------------------------------------
   Logo
   -------------------------------------------------------------------------- */

.sud-hd__logo img {
	block-size: auto;
	inline-size: auto;
	max-block-size: 54px;
	max-inline-size: 100%;
	display: block;
	transition: opacity var(--sud-dur) var(--sud-ease);
}

.sud-hd__logo:hover img { opacity: .82; }

.sud-hd__wordmark {
	font-family: var(--sud-font-display);
	font-weight: 800;
	font-size: 1.15rem;
	color: var(--sud-green-700);
	letter-spacing: -0.02em;
}

/* --------------------------------------------------------------------------
   Navigation — one line, never wraps
   -------------------------------------------------------------------------- */

.sud-hd__list {
	display: flex;
	align-items: center;
	gap: clamp(0.1rem, 0.45vw, 0.35rem);
	margin: 0;
	padding: 0;
	list-style: none;
	flex-wrap: nowrap;           /* the brief's hard requirement */
	white-space: nowrap;
	max-inline-size: 100%;
}

.sud-hd__item { position: static; }  /* mega panel positions against the header */

.sud-hd__link {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	/* Sized so six labels fit the 8-column nav track without spilling into the
	   logo or CTA cells. Measured, not guessed. */
	padding: 0.55rem clamp(0.3rem, 0.6vw, 0.6rem);
	font-size: clamp(0.8125rem, 0.62vw + 0.36rem, 0.9375rem);
	font-family: var(--sud-font-body);
	font-weight: 600;
	line-height: 1;
	color: var(--sud-ink);
	text-decoration: none;
	border-radius: var(--sud-radius-sm);
	position: relative;
	transition: color .28s var(--sud-ease);
}

/* Understated underline that grows from the centre */
.sud-hd__link::after {
	content: '';
	position: absolute;
	inset-block-end: 0.15rem;
	inset-inline-start: 50%;
	inline-size: 0;
	block-size: 2px;
	border-radius: 2px;
	background: var(--sud-green-500);
	transform: translateX(-50%);
	transition: inline-size .32s var(--sud-ease);
}

.sud-hd__link:hover,
.sud-hd__link:focus-visible { color: var(--sud-green-700); }

.sud-hd__link:hover::after,
.sud-hd__item:focus-within > .sud-hd__link::after { inline-size: calc(100% - 1.2rem); }

.sud-hd__item.is-current > .sud-hd__link { color: var(--sud-green-700); }
.sud-hd__item.is-current > .sud-hd__link::after { inline-size: calc(100% - 1.2rem); }

.sud-hd__caret {
	inline-size: 9px;
	block-size: 6px;
	flex: none;
	opacity: .55;
	transition: transform .32s var(--sud-ease), opacity .32s var(--sud-ease);
}

.sud-hd__item.is-open .sud-hd__caret { transform: rotate(180deg); opacity: 1; }
.sud-hd__item.is-open > .sud-hd__link { color: var(--sud-green-700); }

/* --------------------------------------------------------------------------
   Mega menu
   -------------------------------------------------------------------------- */

.sud-mega {
	position: absolute;
	inset-inline: 0;
	inset-block-start: 100%;
	background: var(--sud-surface);
	border-top: 1px solid var(--sud-line);
	box-shadow: 0 24px 48px -12px rgba(11, 31, 23, .16);
	opacity: 0;
	transform: translateY(-8px);
	pointer-events: none;
	transition: opacity .28s var(--sud-ease), transform .28s var(--sud-ease);
	z-index: 5;
}

.sud-mega[hidden] { display: block; }  /* animate instead of snapping */

.sud-hd__item.is-open .sud-mega {
	opacity: 1;
	transform: none;
	pointer-events: auto;
}

.sud-mega__inner {
	max-width: var(--sud-maxw);
	margin-inline: auto;
	padding: clamp(1.75rem, 3vw, 2.5rem) clamp(1.25rem, 3vw, 2.5rem);
	display: grid;
	grid-template-columns: repeat(12, 1fr);
	column-gap: clamp(1.5rem, 3vw, 3rem);
	row-gap: var(--sud-5);
}

.sud-mega__lead { grid-column: 1 / span 4; }

.sud-mega__eyebrow {
	display: block;
	font-family: var(--sud-font-body);
	font-size: var(--sud-text-xs);
	font-weight: 700;
	letter-spacing: .14em;
	text-transform: uppercase;
	color: var(--sud-green-700);
	margin-bottom: var(--sud-3);
}

.sud-mega__blurb {
	font-size: var(--sud-text-sm);
	line-height: 1.65;
	color: var(--sud-muted);
	margin: 0 0 var(--sud-4);
	max-width: 34ch;
}

.sud-mega__all {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-size: var(--sud-text-sm);
	font-weight: 600;
	color: var(--sud-green-700);
	text-decoration: none;
}

.sud-mega__all svg { inline-size: 14px; block-size: 10px; transition: transform .3s var(--sud-ease); }
.sud-mega__all:hover svg { transform: translateX(3px); }

.sud-mega__links {
	grid-column: 5 / span 8;
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	column-gap: clamp(1.5rem, 3vw, 2.5rem);
	row-gap: 2px;
	align-content: start;
}

.sud-mega__links--dense { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.sud-mega__links a {
	display: block;
	padding: 0.6rem 0.75rem;
	border-radius: var(--sud-radius-sm);
	font-family: var(--sud-font-body);
	font-size: var(--sud-text-sm);
	font-weight: 500;
	line-height: 1.4;
	color: var(--sud-body);
	text-decoration: none;
	transition: background .26s var(--sud-ease),
	            color .26s var(--sud-ease),
	            padding-inline-start .26s var(--sud-ease);
}

.sud-mega__links a:hover,
.sud-mega__links a:focus-visible,
.sud-mega__links a.is-current {
	background: var(--sud-surface-3);
	color: var(--sud-green-700);
	padding-inline-start: 1.05rem;
}

/* --------------------------------------------------------------------------
   CTA
   -------------------------------------------------------------------------- */

/* `!important` on colour only: Elementor's global link rule reaches this anchor
   and was rendering the label near-black on brand green (2.08:1). */
.sud-hd__cta {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	white-space: nowrap;
	padding: 0.7rem 1.35rem;
	border-radius: 100px;
	background: var(--sud-green-700);
	border: 1px solid var(--sud-green-700);
	color: #fff !important;
	font-family: var(--sud-font-body);
	font-size: 0.875rem;
	font-weight: 600;
	line-height: 1;
	text-decoration: none;
	transition: background .3s var(--sud-ease),
	            border-color .3s var(--sud-ease),
	            transform .3s var(--sud-ease),
	            box-shadow .3s var(--sud-ease);
}

.sud-hd__cta:hover {
	background: var(--sud-green-800);
	border-color: var(--sud-green-800);
	color: #fff;
	transform: translateY(-1px);
	box-shadow: 0 8px 18px rgba(0, 98, 65, .24);
}

/* --------------------------------------------------------------------------
   Burger
   -------------------------------------------------------------------------- */

.sud-hd__burger {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	inline-size: 44px;
	block-size: 44px;
	padding: 0 10px;
	background: transparent;
	border: 0;
	cursor: pointer;
	border-radius: var(--sud-radius-sm);
}

.sud-hd__burger span {
	display: block;
	block-size: 2px;
	inline-size: 100%;
	border-radius: 2px;
	background: var(--sud-ink);
	transition: transform .3s var(--sud-ease), opacity .2s var(--sud-ease);
	transform-origin: center;
}

.sud-hd__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.sud-hd__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.sud-hd__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   Mobile drawer
   -------------------------------------------------------------------------- */

.sud-drawer {
	position: fixed;
	inset-block-start: var(--sud-hd-h-mobile);
	inset-inline: 0;
	inset-block-end: 0;
	background: var(--sud-surface);
	overflow-y: auto;
	overscroll-behavior: contain;
	padding: var(--sud-5) clamp(1.25rem, 5vw, 2rem) var(--sud-9);
	opacity: 0;
	transform: translateY(-6px);
	transition: opacity .3s var(--sud-ease), transform .3s var(--sud-ease);
	z-index: 190;
}

.sud-drawer[hidden] { display: block; pointer-events: none; }
.sud-drawer.is-open { opacity: 1; transform: none; pointer-events: auto; }

.sud-drawer__list { list-style: none; margin: 0; padding: 0; }

.sud-drawer__item { border-bottom: 1px solid var(--sud-line); }

.sud-drawer__link,
.sud-drawer__toggle {
	inline-size: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--sud-4);
	padding: 1.05rem 0;
	background: none;
	border: 0;
	font-family: var(--sud-font-display);
	font-size: 1.0625rem;
	font-weight: 600;
	color: var(--sud-ink);
	text-align: start;
	text-decoration: none;
	cursor: pointer;
}

.sud-drawer__toggle svg {
	inline-size: 11px;
	block-size: 7px;
	flex: none;
	color: var(--sud-green-600);
	transition: transform .3s var(--sud-ease);
}

.sud-drawer__toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.sud-drawer__toggle[aria-expanded="true"] { color: var(--sud-green-700); }

.sud-drawer__sub {
	list-style: none;
	margin: 0;
	padding: 0 0 var(--sud-4);
}

.sud-drawer__sub a {
	display: block;
	padding: 0.6rem 0 0.6rem 1rem;
	border-inline-start: 2px solid var(--sud-line);
	font-size: var(--sud-text-sm);
	font-weight: 500;
	color: var(--sud-body);
	text-decoration: none;
	transition: border-color .25s var(--sud-ease), color .25s var(--sud-ease);
}

.sud-drawer__sub a:hover {
	border-inline-start-color: var(--sud-green-500);
	color: var(--sud-green-700);
}

.sud-drawer__cta {
	display: block;
	margin-top: var(--sud-6);
	padding: 0.95rem 1.5rem;
	border-radius: 100px;
	background: var(--sud-green-700);
	color: #fff !important;
	font-family: var(--sud-font-body);
	font-weight: 600;
	font-size: 0.9375rem;
	text-align: center;
	text-decoration: none;
}

body.sud-nav-open { overflow: hidden; }

/* --------------------------------------------------------------------------
   Breakpoints
   Nav collapses when six labels can no longer sit comfortably on one line,
   rather than at an arbitrary device width.
   -------------------------------------------------------------------------- */

@media (max-width: 1150px) {
	.sud-hd__grid  { block-size: var(--sud-hd-h-mobile); grid-template-columns: repeat(12, 1fr); }
	.sud-hd__logo  { grid-column: 1 / span 6; }
	.sud-hd__nav   { display: none; }
	.sud-hd__actions { grid-column: 7 / span 6; }
	.sud-hd__burger { display: flex; }
	.sud-hd__logo img { max-block-size: 42px; }
}

/* Between 1151px and ~1320px the seven labels are tight against the track.
   Tighten spacing rather than let them collide with the logo or CTA. */
@media (min-width: 1151px) and (max-width: 1320px) {
	.sud-hd__link { padding-inline: 0.3rem; font-size: 0.8125rem; }
	.sud-hd__list { gap: 0.1rem; }
}

@media (max-width: 560px) {
	.sud-hd__cta { display: none; }   /* the drawer carries it */
}

@media (min-width: 1151px) {
	.sud-drawer { display: none !important; }
}

/* --------------------------------------------------------------------------
   RTL
   -------------------------------------------------------------------------- */

[dir="rtl"] .sud-mega__all svg,
[dir="rtl"] .sud-hd__caret { transform: scaleX(-1); }

[dir="rtl"] .sud-hd__item.is-open .sud-hd__caret { transform: scaleX(-1) rotate(180deg); }
[dir="rtl"] .sud-mega__all:hover svg { transform: scaleX(-1) translateX(3px); }

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
	.sud-hd, .sud-mega, .sud-drawer,
	.sud-hd__link, .sud-hd__link::after,
	.sud-hd__cta, .sud-hd__caret,
	.sud-mega__links a, .sud-hd__burger span {
		transition-duration: .01ms !important;
	}
	.sud-hd__cta:hover { transform: none; }
}