/* ==========================================================================
   Layout: containers, grids, sections, glass, header, side menu,
   floating bar, footer.
   ========================================================================== */

/* ---- Containers & rhythm ----------------------------------------------- */
.xn-container { width: min(100% - 2 * var(--xn-gutter), var(--xn-container)); margin-inline: auto; }
.xn-container--wide   { width: min(100% - 2 * var(--xn-gutter), var(--xn-container-wide)); }
.xn-container--narrow { width: min(100% - 2 * var(--xn-gutter), var(--xn-container-narrow)); }
.xn-container--app    { width: min(100% - 2 * var(--xn-gutter), var(--xn-container-app)); }
.xn-container--auth   { width: min(100% - 2 * var(--xn-gutter), 460px); }

.xn-main { display: block; min-height: 60vh; padding-top: calc(var(--xn-header-h) + var(--xn-space-3)); }
.xn-main:focus { outline: none; }
.xn-section { padding-block: var(--xn-section-y); }
.xn-section--sm { padding-block: var(--xn-section-y-sm); }
.xn-section--alt { background: var(--xn-bg-alt); }
.xn-section--inverse { background: var(--xn-surface-inverse); color: var(--xn-text-inverse); }
.xn-section--inverse :is(h1, h2, h3, h4) { color: var(--xn-text-inverse); }

.xn-grid { display: grid; gap: var(--xn-grid-gap); }
.xn-grid--2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); }
.xn-grid--3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); }
.xn-grid--4 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); }
.xn-stack   { display: grid; gap: var(--xn-stack-gap); }
.xn-stack--sm { gap: var(--xn-space-3); }
.xn-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--xn-space-3); }

.xn-split { display: grid; gap: var(--xn-space-10); }
@media (min-width: 1024px) {
	.xn-split { grid-template-columns: minmax(0, 1fr) 360px; align-items: start; }
}
.xn-sticky { position: sticky; top: calc(var(--xn-header-h) + var(--xn-space-6)); }

/* ---- Page head ----------------------------------------------------------- */
.xn-page-head { padding-top: var(--xn-space-8); }
.xn-page-head__title { margin-block: var(--xn-space-3) var(--xn-space-3); }
.xn-page-head__text { margin: 0; color: var(--xn-text-muted); font-size: var(--xn-fs-body-lg); max-width: 62ch; }

/* ---- Glass primitives ------------------------------------------------------ */
.xn-glass {
	background: var(--xn-glass-bg);
	-webkit-backdrop-filter: var(--xn-glass-blur);
	backdrop-filter: var(--xn-glass-blur);
	border: 1px solid var(--xn-glass-border);
}
.xn-glass--strong { background: var(--xn-glass-bg-strong); }
.xn-glass--inverse { background: var(--xn-glass-bg-inverse); border-color: var(--xn-glass-border-inverse); color: var(--xn-text-inverse); }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
	.xn-glass { background: var(--xn-glass-bg-strong); }
	.xn-glass--inverse { background: var(--xn-surface-inverse); }
}
@media (prefers-reduced-transparency: reduce) {
	.xn-glass { background: var(--xn-surface); -webkit-backdrop-filter: none; backdrop-filter: none; }
	.xn-glass--inverse { background: var(--xn-surface-inverse); }
}

/* ---- Header -------------------------------------------------------------- */
.xn-header {
	position: fixed;
	inset-inline: 0;
	top: 0;
	z-index: var(--xn-z-header);
	padding: var(--xn-space-2) var(--xn-gutter) 0;
	pointer-events: none;
	transition: transform var(--xn-dur-3) var(--xn-ease-out);
}
.xn-header__bar {
	pointer-events: auto;
	color: var(--xn-text);
	position: relative;
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	height: calc(var(--xn-header-h) - var(--xn-space-2));
	max-width: var(--xn-container-wide);
	margin-inline: auto;
	padding-inline: var(--xn-space-2);
	border-radius: var(--xn-radius-pill);
	border: 1px solid transparent;
	transition: background-color var(--xn-dur-3) var(--xn-ease), border-color var(--xn-dur-3) var(--xn-ease), box-shadow var(--xn-dur-3) var(--xn-ease), -webkit-backdrop-filter var(--xn-dur-3) var(--xn-ease), backdrop-filter var(--xn-dur-3) var(--xn-ease);
}
/* Transparent at the top of the page … */
.xn-header:not(.is-scrolled) .xn-header__bar {
	background: transparent;
	border-color: transparent;
	-webkit-backdrop-filter: none;
	backdrop-filter: none;
}
/* … frosted once content scrolls underneath. */
.xn-header.is-scrolled .xn-header__bar { box-shadow: var(--xn-shadow-sm); }
.xn-header.is-hidden { transform: translateY(calc(-100% - var(--xn-space-3))); }
.xn-header__start { justify-self: start; display: flex; align-items: center; gap: var(--xn-space-2); }
.xn-header__center { justify-self: center; }
.xn-header__end { justify-self: end; display: flex; align-items: center; gap: var(--xn-space-2); }

.xn-menu-button {
	display: inline-flex; align-items: center; gap: var(--xn-space-3);
	min-height: var(--xn-touch);
	padding-inline: var(--xn-space-3) var(--xn-space-4);
	border: 0; border-radius: var(--xn-radius-pill);
	background: transparent; color: inherit;
	font-size: var(--xn-fs-label); font-weight: var(--xn-fw-medium);
	transition: background-color var(--xn-dur-2) var(--xn-ease);
}
.xn-menu-button:hover { background: var(--xn-hover-overlay); }
.xn-menu-button__lines { position: relative; width: 20px; height: 12px; }
.xn-menu-button__lines::before,
.xn-menu-button__lines::after {
	content: ""; position: absolute; inset-inline-start: 0; height: 1.5px; border-radius: 2px; background: currentColor;
	transition: width var(--xn-dur-2) var(--xn-ease), transform var(--xn-dur-3) var(--xn-ease);
}
.xn-menu-button__lines::before { top: 0; width: 20px; }
.xn-menu-button__lines::after { bottom: 0; width: 13px; }
.xn-menu-button:hover .xn-menu-button__lines::after { width: 20px; }
@media (max-width: 479px) { .xn-menu-button__text { display: none; } .xn-menu-button { padding-inline: var(--xn-space-3); min-width: var(--xn-touch); justify-content: center; } }

.xn-logo { display: inline-flex; align-items: center; color: inherit; text-decoration: none; }
.xn-logo:hover { color: inherit; }
.xn-logo__img--light { display: none; }
.xn-logo__img { height: 28px; width: auto; }
.xn-logo__text { font-weight: var(--xn-fw-bold); font-size: 1.125rem; letter-spacing: var(--xn-ls-heading); white-space: nowrap; }
.xn-logo--footer { color: var(--xn-text-inverse); }
.xn-logo--footer:hover { color: var(--xn-text-inverse); }
.xn-logo--footer .xn-logo__img { height: 34px; }
@media (min-width: 1024px) { .xn-logo--header .xn-logo__img { height: 34px; } }

.xn-lang-switch {
	display: inline-flex; align-items: center; gap: var(--xn-space-2);
	min-height: var(--xn-touch); min-width: var(--xn-touch);
	padding-inline: var(--xn-space-3);
	border-radius: var(--xn-radius-pill);
	color: inherit; text-decoration: none;
	transition: background-color var(--xn-dur-2) var(--xn-ease);
}
.xn-lang-switch:hover { background: var(--xn-hover-overlay); color: inherit; }

/* Overlay header (homepage): light content over the hero until it turns solid. */
.xn-header--overlay .xn-header__bar { transition: color var(--xn-dur-3) var(--xn-ease), background-color var(--xn-dur-3) var(--xn-ease), border-color var(--xn-dur-3) var(--xn-ease), box-shadow var(--xn-dur-3) var(--xn-ease); }
.xn-header--overlay:not(.is-scrolled) .xn-header__bar { color: var(--xn-text-inverse); }
.xn-header--overlay:not(.is-scrolled) :is(.xn-menu-button, .xn-lang-switch):hover { background: rgba(252, 250, 255, 0.12); }
.xn-header--overlay:not(.is-scrolled) :focus-visible { outline-color: var(--xn-focus-ring-inverse); }
.xn-header--overlay:not(.is-scrolled) .xn-logo__img--light { display: block; }
.xn-header--overlay:not(.is-scrolled) .xn-logo__img--light ~ .xn-logo__img--default,
.xn-header--overlay:not(.is-scrolled) .xn-logo__img--default:has(~ .xn-logo__img--light) { display: none; }
.xn-lang-switch__code { font-size: var(--xn-fs-label); font-weight: var(--xn-fw-semi); line-height: 1; }
/* The other language's name renders in the page font (system fallback for
   Arabic on English pages) so no extra font file is downloaded. */

/* ---- Side menu (drawer) --------------------------------------------------- */
.xn-drawer { position: fixed; inset: 0; z-index: var(--xn-z-drawer); }
.xn-drawer__scrim { position: absolute; inset: 0; background: var(--xn-scrim); opacity: 0; transition: opacity var(--xn-dur-3) var(--xn-ease); }
.xn-drawer__panel {
	position: absolute;
	inset-block: var(--xn-space-2);
	inset-inline-start: var(--xn-space-2);
	width: min(440px, calc(100% - var(--xn-space-4)));
	display: flex; flex-direction: column;
	border-radius: var(--xn-radius-xl);
	background: var(--xn-glass-bg-strong);
	box-shadow: var(--xn-shadow-lg);
	transform: translateX(calc(-100% - var(--xn-space-4)));
	transition: transform var(--xn-dur-3) var(--xn-ease-out);
	overflow: hidden;
}
[dir="rtl"] .xn-drawer__panel { transform: translateX(calc(100% + var(--xn-space-4))); }
.xn-drawer.is-open .xn-drawer__scrim { opacity: 1; }
.xn-drawer.is-open .xn-drawer__panel { transform: none; }
.xn-drawer__head { display: flex; align-items: center; justify-content: space-between; gap: var(--xn-space-3); padding: var(--xn-space-4) var(--xn-space-4) var(--xn-space-2) var(--xn-space-6); }
[dir="rtl"] .xn-drawer__head { padding: var(--xn-space-4) var(--xn-space-6) var(--xn-space-2) var(--xn-space-4); }
.xn-drawer__body { flex: 1; overflow-y: auto; padding: var(--xn-space-4) var(--xn-space-4) var(--xn-space-6); overscroll-behavior: contain; }
.xn-drawer__label { margin: var(--xn-space-6) var(--xn-space-3) var(--xn-space-2); font-size: var(--xn-fs-caption); color: var(--xn-text-subtle); }
.xn-drawer__foot { display: grid; gap: var(--xn-space-2); padding: var(--xn-space-4); border-top: 1px solid var(--xn-border); }
.xn-drawer__actions { display: grid; grid-template-columns: 1fr 1fr; gap: var(--xn-space-2); }
.xn-drawer__more { margin-top: var(--xn-space-2); }
.xn-drawer__more-toggle {
	width: 100%;
	display: flex; align-items: center; justify-content: space-between;
	min-height: var(--xn-touch);
	padding: var(--xn-space-3);
	background: none; border: 0; border-radius: var(--xn-radius-md);
	font-size: var(--xn-fs-nav); font-weight: var(--xn-fw-medium); color: var(--xn-text-muted);
}
.xn-drawer__more-toggle:hover { background: var(--xn-hover-overlay); }
.xn-drawer__more-toggle .xn-icon { transition: transform var(--xn-dur-2) var(--xn-ease); }
.xn-drawer__more-toggle[aria-expanded="true"] .xn-icon { transform: rotate(180deg); }

/* Staggered entrance of first-level items */
.xn-drawer .xn-menu--primary > .xn-menu__item { opacity: 0; transform: translateY(8px); transition: opacity var(--xn-dur-3) var(--xn-ease-out), transform var(--xn-dur-3) var(--xn-ease-out); }
.xn-drawer.is-open .xn-menu--primary > .xn-menu__item { opacity: 1; transform: none; }
.xn-drawer.is-open .xn-menu--primary > .xn-menu__item:nth-child(2) { transition-delay: 40ms; }
.xn-drawer.is-open .xn-menu--primary > .xn-menu__item:nth-child(3) { transition-delay: 80ms; }
.xn-drawer.is-open .xn-menu--primary > .xn-menu__item:nth-child(4) { transition-delay: 120ms; }
.xn-drawer.is-open .xn-menu--primary > .xn-menu__item:nth-child(n+5) { transition-delay: 160ms; }

/* Menus */
.xn-menu, .xn-menu__sub { list-style: none; margin: 0; padding: 0; }
.xn-menu__item { position: relative; display: flex; flex-wrap: wrap; align-items: center; }
.xn-menu__link {
	flex: 1;
	display: flex; align-items: center;
	min-height: var(--xn-touch);
	padding: var(--xn-space-2) var(--xn-space-3);
	border-radius: var(--xn-radius-md);
	color: var(--xn-text);
	font-size: var(--xn-fs-nav);
	font-weight: var(--xn-fw-medium);
	text-decoration: none;
	transition: background-color var(--xn-dur-2) var(--xn-ease), color var(--xn-dur-2) var(--xn-ease);
}
.xn-menu--primary > .xn-menu__item > .xn-menu__link { font-size: var(--xn-fs-nav-lg); font-weight: var(--xn-fw-semi); min-height: 56px; }
.xn-menu__link:hover { background: var(--xn-hover-overlay); color: var(--xn-text); }
.xn-menu__item.is-active > .xn-menu__link { color: var(--xn-accent); }
.xn-menu__item.is-active > .xn-menu__link::before {
	content: ""; width: 6px; height: 6px; margin-inline-end: var(--xn-space-3); border-radius: 50%; background: var(--xn-highlight);
}
.xn-menu__toggle {
	display: grid; place-items: center;
	width: var(--xn-touch); height: var(--xn-touch);
	border: 0; background: none; border-radius: var(--xn-radius-md);
	color: var(--xn-text-muted);
}
.xn-menu__toggle:hover { background: var(--xn-hover-overlay); }
.xn-menu__toggle .xn-icon { transition: transform var(--xn-dur-2) var(--xn-ease); }
.xn-menu__toggle[aria-expanded="true"] .xn-icon { transform: rotate(180deg); }
.xn-menu__sub { flex-basis: 100%; margin-block: var(--xn-space-1) var(--xn-space-2); padding-inline-start: var(--xn-space-4); border-inline-start: 1px solid var(--xn-border); margin-inline-start: var(--xn-space-3); }
.xn-menu__sub .xn-menu__link { font-size: var(--xn-fs-body); color: var(--xn-text-muted); }

/* ---- Floating action bar ---------------------------------------------------- */
.xn-bar {
	position: fixed;
	inset-inline: 0;
	bottom: var(--xn-bar-offset);
	z-index: var(--xn-z-bar);
	display: flex; justify-content: center;
	padding-inline: var(--xn-space-3);
	pointer-events: none;
	transition: transform var(--xn-dur-3) var(--xn-ease-out), opacity var(--xn-dur-2) var(--xn-ease);
}
.xn-bar.is-hidden { transform: translateY(calc(100% + var(--xn-space-6))); opacity: 0; }
.xn-bar__list {
	pointer-events: auto;
	list-style: none; margin: 0;
	display: grid;
	grid-template-columns: repeat(var(--xn-bar-count, 4), minmax(0, 1fr));
	gap: var(--xn-space-1);
	width: min(100%, 480px);
	height: var(--xn-bar-h);
	padding: 5px;
	border-radius: var(--xn-radius-pill);
	box-shadow: var(--xn-shadow-float);
}
.xn-bar__action {
	position: relative;
	height: 100%;
	display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
	border-radius: var(--xn-radius-pill);
	color: var(--xn-text);
	text-decoration: none;
	font-size: var(--xn-fs-micro); font-weight: var(--xn-fw-medium);
	transition: background-color var(--xn-dur-2) var(--xn-ease), color var(--xn-dur-2) var(--xn-ease), transform var(--xn-dur-1) var(--xn-ease);
	-webkit-tap-highlight-color: transparent;
}
.xn-bar__action .xn-icon { transition: transform var(--xn-dur-2) var(--xn-ease); }
.xn-bar__action:hover { background: var(--xn-hover-overlay); color: var(--xn-text); }
.xn-bar__action:hover .xn-icon { transform: translateY(-1px); }
.xn-bar__action:active { transform: scale(0.96); background: var(--xn-press-overlay); }
.xn-bar__action:focus-visible { outline-offset: -2px; border-radius: var(--xn-radius-pill); }
.xn-bar__action--primary { background: var(--xn-primary); color: var(--xn-on-primary); }
.xn-bar__action--primary:hover { background: var(--xn-secondary); color: var(--xn-on-secondary); }
.xn-bar__action--primary::after {
	content: ""; position: absolute; top: 9px; inset-inline-end: 12px;
	width: 5px; height: 5px; border-radius: 50%; background: var(--xn-highlight);
}
.xn-bar__label { line-height: 1.2; white-space: nowrap; }
@media (min-width: 768px) {
	.xn-bar__list { width: auto; min-width: 520px; }
	.xn-bar__action { flex-direction: row; gap: var(--xn-space-2); padding-inline: var(--xn-space-4); font-size: var(--xn-fs-body-sm); }
	.xn-bar__action--primary::after { top: 50%; transform: translateY(-50%); inset-inline-end: 10px; }
}

/* ---- Footer ------------------------------------------------------------------ */
.xn-footer {
	margin-top: var(--xn-section-y);
	background: var(--xn-surface-inverse);
	color: var(--xn-text-inverse);
	border-start-start-radius: var(--xn-radius-xl);
	border-start-end-radius: var(--xn-radius-xl);
}
.xn-footer a:not(.xn-btn) { color: var(--xn-text-inverse); text-decoration: none; }
.xn-footer a:not(.xn-btn):hover { color: var(--xn-highlight); }
.xn-footer :focus-visible { outline-color: var(--xn-focus-ring-inverse); }
.xn-footer__inner { display: grid; gap: var(--xn-space-12); padding-block: var(--xn-space-16) var(--xn-space-6); }
.xn-footer__about { color: var(--xn-text-inverse-muted); max-width: 40ch; margin: var(--xn-space-5) 0 0; }
.xn-footer__social { list-style: none; padding: 0; margin: var(--xn-space-6) 0 0; display: flex; flex-wrap: wrap; gap: var(--xn-space-2); }
.xn-footer__social a {
	display: inline-flex; align-items: center; min-height: 36px; padding: 0 var(--xn-space-4);
	border: 1px solid var(--xn-border-inverse); border-radius: var(--xn-radius-pill);
	font-size: var(--xn-fs-body-sm);
	transition: border-color var(--xn-dur-2) var(--xn-ease), color var(--xn-dur-2) var(--xn-ease);
}
.xn-footer__social a:hover { border-color: var(--xn-highlight); }
.xn-footer__columns { display: grid; gap: var(--xn-space-10) var(--xn-space-8); grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.xn-footer__title { margin: 0 0 var(--xn-space-4); font-size: var(--xn-fs-body-sm); font-weight: var(--xn-fw-medium); color: var(--xn-text-inverse-subtle); }
.xn-footer__list, .xn-footer .xn-menu { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--xn-space-1); }
.xn-footer__list a, .xn-footer .xn-menu__link { display: inline-flex; align-items: center; min-height: 32px; padding: 0; font-size: var(--xn-fs-body); font-weight: var(--xn-fw-regular); color: var(--xn-text-inverse); }
.xn-footer .xn-menu__link:hover { background: none; color: var(--xn-highlight); }
.xn-footer__all { color: var(--xn-text-inverse-muted) !important; font-size: var(--xn-fs-body-sm) !important; }
.xn-footer__contact a { font-family: inherit; }
.xn-footer__cta {
	display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--xn-space-5);
	padding: var(--xn-space-6) var(--xn-space-8);
	border-radius: var(--xn-radius-lg);
	background: var(--xn-surface-inverse-2);
	border: 1px solid var(--xn-border-inverse);
}
.xn-footer__cta-text { margin: 0; font-size: var(--xn-fs-h4); font-weight: var(--xn-fw-semi); color: var(--xn-text-inverse); }
.xn-footer__cta-actions { display: flex; flex-wrap: wrap; gap: var(--xn-space-2); }
.xn-footer__bottom { display: grid; gap: var(--xn-space-5); padding-top: var(--xn-space-6); border-top: 1px solid var(--xn-border-inverse); }
.xn-footer__payments { display: flex; flex-wrap: wrap; align-items: center; gap: var(--xn-space-3); }
.xn-footer__label { margin: 0; font-size: var(--xn-fs-caption); color: var(--xn-text-inverse-subtle); }
.xn-footer__legal {
	display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--xn-space-2) var(--xn-space-6);
	font-size: var(--xn-fs-micro);
	color: var(--xn-text-inverse-subtle);
}
.xn-footer__copy { margin: 0; }
.xn-footer__legal-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0 var(--xn-space-5); }
.xn-footer__legal-links a { display: inline-flex; align-items: center; min-height: 32px; color: var(--xn-text-inverse-muted); }
@media (min-width: 1024px) {
	.xn-footer__inner { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); column-gap: var(--xn-space-16); }
	.xn-footer__cta, .xn-footer__bottom { grid-column: 1 / -1; }
	.xn-footer__bottom { grid-template-columns: 1fr auto; align-items: center; }
}