/* ==========================================================================
   Xagor Studio — design tokens, reset, navigation
   ========================================================================== */

:root {
	--black: #0a0a0a;
	--black-deep: #0c0c0c;
	--white: #ffffff;
	--gold-core: #c1a262;
	--gold-soft: #e5d09c;
	--gold-light: #f3e0a0;
	--gold-dark: #9d7d3f;

	--gold-grad: linear-gradient(135deg, var(--gold-light), var(--gold-core) 55%, var(--gold-dark));

	--font-fa: "IRANYekanXFaNum", "Tahoma", sans-serif;
	--font-latin: "Helvetica Neue", Arial, "Segoe UI", sans-serif;

	--ease-arrive: cubic-bezier(0.16, 1, 0.3, 1);
	--nav-h: 4.75rem;
	--admin-bar-h: 0px;
}

@media screen and (max-width: 782px) {
	.admin-bar {
		--admin-bar-h: 46px;
	}
}
@media screen and (min-width: 783px) {
	.admin-bar {
		--admin-bar-h: 32px;
	}
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

html {
	background: var(--black);
	scroll-behavior: auto;
}

body {
	background: var(--black);
	color: var(--white);
	font-family: var(--font-fa);
	font-weight: 400;
	line-height: 1.3;
	overflow-x: hidden;
	-webkit-font-smoothing: antialiased;
}

.latin {
	font-family: var(--font-latin);
	direction: ltr;
	unicode-bidi: isolate;
	letter-spacing: 0.04em;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.screen-reader-text {
	position: absolute;
	left: -9999px;
	top: -9999px;
}
.skip-link:focus {
	position: fixed;
	left: 1rem;
	top: calc(var(--admin-bar-h) + 1rem);
	z-index: 999;
	background: var(--white);
	color: var(--black);
	padding: 0.6rem 1rem;
	border-radius: 4px;
}

:focus-visible {
	outline: 2px solid var(--gold-core);
	outline-offset: 2px;
}

/* subtle film-grain overlay — cheap, static, no JS */
.grain {
	position: fixed;
	inset: 0;
	z-index: 500;
	pointer-events: none;
	opacity: 0.035;
	mix-blend-mode: overlay;
	background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ---------------------------------- nav ---------------------------------- */

.nav {
	position: fixed;
	top: var(--admin-bar-h);
	inset-inline: 0;
	height: var(--nav-h);
	z-index: 300;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-inline: clamp(1.25rem, 4vw, 3rem);
	background: linear-gradient(to bottom, rgba(10, 10, 10, 0.75), transparent);
	transition: background-color 0.4s ease, backdrop-filter 0.4s ease;
}

.nav.is-solid {
	background: rgba(10, 10, 10, 0.88);
	backdrop-filter: blur(10px);
	box-shadow: 0 1px 0 rgba(193, 162, 98, 0.12);
}

.nav__brand { display: flex; align-items: center; }
.nav__logo, .custom-logo { height: 1.35rem; width: auto; display: block; }

.nav__menu {
	display: flex;
	align-items: center;
	gap: clamp(1.25rem, 2.5vw, 2.25rem);
	list-style: none;
	margin: 0;
	padding: 0;
}

.nav__link {
	font-size: 0.95rem;
	color: rgba(255, 255, 255, 0.82);
	position: relative;
	padding-bottom: 0.35rem;
	display: inline-block;
}

.nav__link::after {
	content: "";
	position: absolute;
	inset-inline: 0;
	bottom: 0;
	height: 1px;
	background: var(--gold-core);
	transform: scaleX(0);
	transform-origin: right;
	transition: transform 0.35s var(--ease-arrive);
}

.nav__link:hover::after,
.nav__link:focus-visible::after,
.current-menu-item > .nav__link::after { transform: scaleX(1); }

.nav__link--cta {
	color: var(--gold-soft);
	border: 1px solid rgba(193, 162, 98, 0.5);
	padding: 0.5rem 1.1rem;
	border-radius: 999px;
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover { background: rgba(193, 162, 98, 0.1); }

.nav__toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 2.25rem;
	height: 2.25rem;
	background: transparent;
	border: none;
	cursor: pointer;
	padding: 0;
}
.nav__toggle span {
	display: block;
	height: 1px;
	background: var(--white);
	width: 100%;
	transition: transform 0.3s var(--ease-arrive), opacity 0.3s;
}
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

@media (max-width: 720px) {
	.nav__menu {
		position: fixed;
		top: calc(var(--admin-bar-h) + var(--nav-h));
		inset-inline: 0;
		background: rgba(10, 10, 10, 0.97);
		backdrop-filter: blur(12px);
		flex-direction: column;
		align-items: flex-start;
		padding: 1.5rem clamp(1.25rem, 6vw, 6rem) 2rem;
		gap: 1.1rem;
		transform: translateY(-8px);
		opacity: 0;
		pointer-events: none;
		transition: transform 0.3s var(--ease-arrive), opacity 0.3s;
	}
	.nav__menu.is-open {
		transform: translateY(0);
		opacity: 1;
		pointer-events: auto;
	}
	.nav__toggle { display: flex; }
}

/* ------------------------------ reduced motion ---------------------------- */

@media (prefers-reduced-motion: reduce) {
	* {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}