/* ==========================================================================
   Stav Portfolio — main stylesheet (RTL Hebrew, dark editorial theme)
   ========================================================================== */

:root {
	--bg: #0a0a0a;
	--surface: #111111;
	--surface-2: #161616;
	--border: #232323;
	--text: #f5f5f5;
	--muted: #8a8a8a;
	--primary: #a78bfa;       /* muted purple accent */
	--primary-strong: #8b5cf6;
	--radius: 16px;
	--radius-pill: 999px;
	--max: 1440px;
	--gutter-x: clamp(20px, 5vw, 96px);
	--font-display: "Frank Ruhl Libre", "FB Animator", Georgia, serif;
	--font-body: "Heebo", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
	--ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-body);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	direction: rtl;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; border: 0; background: transparent; cursor: pointer; color: inherit; }

::selection { background: var(--primary); color: var(--bg); }

/* ============== Eyebrow heading ============== */
.stav-eyebrow {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 16px;
}
.stav-eyebrow__line {
	width: 32px;
	height: 1px;
	background: var(--muted);
}
.stav-eyebrow p {
	margin: 0;
	font-size: 12px;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--muted);
	font-weight: 400;
}

.stav-section-header {
	margin-bottom: 64px;
}
.stav-section-header h2 {
	font-family: var(--font-display);
	font-size: clamp(36px, 6vw, 88px);
	font-weight: 500;
	margin: 0;
	line-height: 1;
	letter-spacing: -0.02em;
	color: var(--text);
}

/* ============== Buttons ============== */
.stav-btn {
	display: inline-block;
	padding: 16px 40px;
	border-radius: var(--radius-pill);
	font-size: 13px;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	transition: all 0.5s var(--ease);
	font-weight: 500;
	border: 1px solid var(--primary);
}
.stav-btn--outline {
	background: transparent;
	color: var(--text);
}
.stav-btn--outline:hover {
	background: var(--primary);
	color: var(--bg);
}
.stav-btn--solid {
	background: var(--text);
	color: var(--bg);
}
.stav-btn--solid:hover {
	background: var(--primary);
	color: var(--bg);
}

/* ============== Navbar ============== */
.stav-nav {
	position: fixed;
	top: 0; right: 0; left: 0;
	z-index: 50;
	transition: background 0.5s var(--ease), backdrop-filter 0.5s var(--ease);
}
.stav-nav.is-scrolled {
	background: rgba(10, 10, 10, 0.85);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
}
.stav-nav__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 24px var(--gutter-x);
}
.stav-nav__menu {
	display: flex;
	gap: 32px;
	list-style: none;
	margin: 0;
	padding: 0;
}
.stav-nav__menu a {
	font-size: 12px;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--muted);
	transition: color 0.3s var(--ease);
}
.stav-nav__menu a:hover { color: var(--text); }

.stav-nav__logo {
	font-family: var(--font-display);
	font-size: 22px;
	font-weight: 500;
	color: var(--text);
}

.stav-nav__toggle {
	display: none;
	flex-direction: column;
	gap: 5px;
	padding: 8px;
}
.stav-nav__toggle span {
	width: 24px;
	height: 1.5px;
	background: var(--text);
	transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

/* ============== Hero ============== */
.stav-hero {
	position: relative;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: 0 var(--gutter-x);
	overflow: hidden;
}
.stav-hero__grid {
	position: absolute; inset: 0;
	pointer-events: none;
	opacity: 0.03;
	background-image:
		linear-gradient(var(--text) 1px, transparent 1px),
		linear-gradient(90deg, var(--text) 1px, transparent 1px);
	background-size: 60px 60px;
}
.stav-hero__glow {
	position: absolute;
	top: 33%; right: 25%;
	width: 500px; height: 500px;
	border-radius: 50%;
	background: rgba(167, 139, 250, 0.10);
	filter: blur(150px);
	pointer-events: none;
}
.stav-hero__content { position: relative; z-index: 1; max-width: 1100px; }
.stav-hero__title {
	font-family: var(--font-display);
	font-weight: 500;
	font-size: clamp(64px, 14vw, 160px);
	line-height: 0.85;
	letter-spacing: -0.02em;
	margin: 0;
	color: var(--text);
}
.stav-hero__text {
	font-size: clamp(16px, 1.4vw, 20px);
	color: var(--muted);
	max-width: 480px;
	margin: 32px 0 40px;
	line-height: 1.7;
}

/* ============== Services ============== */
.stav-services {
	background: var(--surface);
	padding: 96px var(--gutter-x);
}
.stav-services__grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 24px;
}
.stav-service-card {
	position: relative;
	padding: 32px;
	background: var(--bg);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	transition: border-color 0.5s var(--ease);
	overflow: hidden;
}
.stav-service-card::before {
	content: '';
	position: absolute; inset: 0;
	background: rgba(167, 139, 250, 0.05);
	opacity: 0;
	transition: opacity 0.5s var(--ease);
}
.stav-service-card:hover { border-color: rgba(167, 139, 250, 0.5); }
.stav-service-card:hover::before { opacity: 1; }
.stav-service-card > * { position: relative; z-index: 1; }

.stav-service-card__icon {
	width: 48px; height: 48px;
	border-radius: 12px;
	background: rgba(167, 139, 250, 0.15);
	color: var(--primary);
	display: flex; align-items: center; justify-content: center;
	margin-bottom: 20px;
}
.stav-service-card__icon svg { width: 24px; height: 24px; }
.stav-service-card h3 {
	font-family: var(--font-display);
	font-size: 22px;
	font-weight: 500;
	margin: 0 0 12px;
	color: var(--text);
}
.stav-service-card p {
	font-size: 14px;
	line-height: 1.7;
	color: var(--muted);
	margin: 0;
}

/* ============== Portfolio ============== */
.stav-portfolio {
	padding: 96px var(--gutter-x);
}
.stav-portfolio__filters {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 48px;
}
.stav-filter {
	padding: 10px 22px;
	border-radius: var(--radius-pill);
	border: 1px solid var(--border);
	color: var(--muted);
	font-size: 13px;
	letter-spacing: 0.05em;
	transition: all 0.3s var(--ease);
}
.stav-filter:hover { color: var(--text); border-color: var(--muted); }
.stav-filter.is-active {
	background: var(--text);
	color: var(--bg);
	border-color: var(--text);
}

.stav-portfolio__grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
}
.stav-project { position: relative; }
.stav-project.is-hidden { display: none; }
.stav-project__link {
	display: block;
	border-radius: var(--radius);
	overflow: hidden;
}
.stav-project__image {
	position: relative;
	aspect-ratio: 1 / 1;
	background: var(--surface);
	overflow: hidden;
}
.stav-project__image img {
	width: 100%; height: 100%;
	object-fit: cover;
	transition: transform 0.7s var(--ease);
}
.stav-project:hover .stav-project__image img { transform: scale(1.05); }

.stav-project__overlay {
	position: absolute;
	inset: auto 0 0 0;
	padding: 24px 20px;
	background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
	color: var(--text);
	opacity: 0;
	transform: translateY(10px);
	transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.stav-project:hover .stav-project__overlay {
	opacity: 1;
	transform: translateY(0);
}
.stav-project__cat {
	font-size: 11px;
	letter-spacing: 0.25em;
	text-transform: uppercase;
	color: var(--primary);
	display: block;
	margin-bottom: 6px;
}
.stav-project__title {
	font-family: var(--font-display);
	font-size: 20px;
	font-weight: 500;
	margin: 0;
}
.stav-portfolio__empty {
	text-align: center;
	color: var(--muted);
	padding: 64px 0;
}

/* ============== About ============== */
.stav-about {
	padding: 96px var(--gutter-x);
}
.stav-about__grid {
	display: grid;
	grid-template-columns: 280px 1fr;
	gap: 48px;
	align-items: start;
}
.stav-about__image {
	aspect-ratio: 3 / 4;
	border-radius: var(--radius);
	background: var(--surface);
	border: 1px solid var(--border);
	overflow: hidden;
	display: flex; align-items: center; justify-content: center;
}
.stav-about__image img { width: 100%; height: 100%; object-fit: cover; }
.stav-about__placeholder {
	color: var(--muted);
	font-size: 11px;
	letter-spacing: 0.2em;
	text-transform: uppercase;
}
.stav-about__bio p {
	font-size: 16px;
	line-height: 1.8;
	color: var(--muted);
	margin: 0 0 20px;
}
.stav-about__stats {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 32px;
	padding-top: 32px;
	border-top: 1px solid var(--border);
	margin-top: 32px;
}
.stav-stat__num {
	font-family: var(--font-display);
	font-size: 32px;
	font-weight: 500;
	color: var(--text);
	margin: 0;
}
.stav-stat__lbl {
	font-size: 11px;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--muted);
	margin: 4px 0 0;
}

/* ============== Contact ============== */
.stav-contact {
	position: relative;
	padding: 128px var(--gutter-x);
	background: var(--surface);
	overflow: hidden;
}
.stav-contact__bg {
	position: absolute; inset: 0;
	pointer-events: none;
	background: radial-gradient(600px circle at 50% 50%, rgba(123, 47, 247, 0.15), transparent 60%);
	transition: background 0.4s var(--ease);
}
.stav-contact__inner {
	position: relative;
	max-width: 800px;
	margin: 0 auto;
	text-align: center;
}
.stav-contact__eyebrow {
	font-size: 13px;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--muted);
	margin: 0 0 24px;
}
.stav-contact__title {
	font-family: var(--font-display);
	font-size: clamp(36px, 6vw, 72px);
	font-weight: 500;
	line-height: 1.05;
	margin: 0 0 32px;
	color: var(--text);
	letter-spacing: -0.01em;
}
.stav-contact__title :last-child,
.stav-contact__title br + * { color: var(--primary); }
.stav-contact__text {
	font-size: 18px;
	color: var(--muted);
	max-width: 600px;
	margin: 0 auto 48px;
	line-height: 1.7;
}
.stav-contact__socials {
	display: flex;
	gap: 16px;
	justify-content: center;
	margin-top: 48px;
}
.stav-social {
	width: 48px; height: 48px;
	border-radius: 50%;
	border: 1px solid var(--border);
	display: flex; align-items: center; justify-content: center;
	color: var(--muted);
	transition: all 0.3s var(--ease);
}
.stav-social svg { width: 20px; height: 20px; }
.stav-social:hover {
	color: var(--text);
	border-color: var(--primary);
}

/* ============== Footer ============== */
.stav-footer {
	padding: 32px var(--gutter-x);
	border-top: 1px solid var(--border);
	background: var(--bg);
}
.stav-footer__inner {
	text-align: center;
	color: var(--muted);
	font-size: 12px;
	letter-spacing: 0.15em;
}
.stav-footer p { margin: 0; }

/* ============== Single project ============== */
.stav-single-project {
	padding: 128px var(--gutter-x) 96px;
	max-width: 1100px;
	margin: 0 auto;
}
.stav-single-project__head { margin-bottom: 64px; }
.stav-back {
	display: inline-block;
	color: var(--muted);
	font-size: 13px;
	letter-spacing: 0.15em;
	text-transform: uppercase;
	margin-bottom: 32px;
	transition: color 0.3s var(--ease);
}
.stav-back:hover { color: var(--primary); }
.stav-single-project__cat {
	font-size: 12px;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--primary);
	margin: 0 0 16px;
}
.stav-single-project h1 {
	font-family: var(--font-display);
	font-size: clamp(40px, 6vw, 80px);
	font-weight: 500;
	margin: 0;
	line-height: 1;
	letter-spacing: -0.02em;
}
.stav-single-project__excerpt {
	font-size: 18px;
	color: var(--muted);
	margin-top: 24px;
	max-width: 700px;
	line-height: 1.7;
}
.stav-single-project__hero {
	border-radius: var(--radius);
	overflow: hidden;
	margin-bottom: 64px;
}
.stav-single-project__body {
	font-size: 17px;
	line-height: 1.85;
	color: var(--muted);
	max-width: 760px;
}
.stav-single-project__body p { margin: 0 0 24px; }
.stav-single-project__body img { border-radius: var(--radius); margin: 32px 0; }

/* ============== Static page ============== */
.stav-static-page { padding: 128px var(--gutter-x) 96px; max-width: 800px; margin: 0 auto; }
.stav-static-page h1 { font-family: var(--font-display); font-size: 48px; font-weight: 500; margin: 0 0 32px; }
.stav-page__content { color: var(--muted); line-height: 1.8; }

/* ============== 404 ============== */
.stav-404 {
	min-height: 80vh;
	display: flex; flex-direction: column;
	align-items: center; justify-content: center;
	gap: 24px; text-align: center;
	padding: 0 var(--gutter-x);
}
.stav-404 h1 { font-family: var(--font-display); font-size: 120px; margin: 0; }
.stav-404 p { color: var(--muted); margin: 0 0 16px; }

/* ============== Reveal animation ============== */
.stav-reveal {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.stav-reveal.is-visible {
	opacity: 1;
	transform: translateY(0);
}

/* ============== Responsive ============== */
@media (max-width: 1024px) {
	.stav-portfolio__grid { grid-template-columns: repeat(2, 1fr); }
	.stav-about__grid { grid-template-columns: 220px 1fr; gap: 32px; }
}

@media (max-width: 768px) {
	.stav-nav__menu { display: none; }
	.stav-nav.is-open .stav-nav__menu {
		display: flex;
		position: absolute;
		top: 100%; right: 0; left: 0;
		flex-direction: column;
		gap: 0;
		background: var(--bg);
		padding: 24px var(--gutter-x);
		border-top: 1px solid var(--border);
	}
	.stav-nav.is-open .stav-nav__menu li { padding: 14px 0; border-bottom: 1px solid var(--border); }
	.stav-nav.is-open .stav-nav__menu li:last-child { border-bottom: 0; }
	.stav-nav__toggle { display: flex; }
	.stav-nav.is-open .stav-nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
	.stav-nav.is-open .stav-nav__toggle span:nth-child(2) { opacity: 0; }
	.stav-nav.is-open .stav-nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

	.stav-services__grid { grid-template-columns: 1fr; }
	.stav-portfolio__grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
	.stav-about__grid { grid-template-columns: 1fr; }
	.stav-about__image { max-width: 280px; }
	.stav-about__stats { grid-template-columns: repeat(3, 1fr); gap: 16px; }
	.stav-contact { padding: 96px var(--gutter-x); }
	.stav-services, .stav-portfolio, .stav-about { padding: 80px var(--gutter-x); }
}

@media (max-width: 480px) {
	.stav-portfolio__grid { grid-template-columns: 1fr; }
	.stav-stat__num { font-size: 26px; }
}