/* ==========================================================================
   Legentra — Design Tokens
   ========================================================================== */
:root {
	--ink:        #000000;
	--ink-2:      #0A0A0D;
	--stone:      #E8E7E2;
	--paper:      #F4F3EF;
	--text-dark:  #1B1926;
	--text-light: #F3F1EA;
	--muted-on-light: #6B6878;
	--muted-on-dark:  #B9B6C4;
	--ember:      #FF6A3D;
	--ember-dim:  #E85A30;
	--teal:       #2FD9C4;
	--line-on-light: rgba(27,25,38,0.12);
	--line-on-dark:  rgba(243,241,234,0.14);

	--font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
	--font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
	--font-mono: 'IBM Plex Mono', 'Courier New', monospace;

	--container: 1180px;
	--radius: 4px;
	--speed: 220ms;
}

/* ==========================================================================
   Reset & base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
	margin: 0;
	font-family: var(--font-body);
	background: var(--paper);
	color: var(--text-dark);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
	font-family: var(--font-display);
	font-weight: 600;
	letter-spacing: -0.01em;
	line-height: 1.08;
	margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
address { font-style: normal; }

.sr-only {
	position: absolute; width: 1px; height: 1px;
	padding: 0; margin: -1px; overflow: hidden;
	clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
	position: absolute; left: -999px; top: 0; z-index: 1000;
	background: var(--ember); color: var(--ink); padding: 0.75em 1.25em;
	font-family: var(--font-mono); font-size: 0.85rem;
}
.skip-link:focus { left: 1rem; top: 1rem; }

:focus-visible {
	outline: 2px solid var(--ember);
	outline-offset: 3px;
}

.wrap {
	max-width: var(--container);
	margin: 0 auto;
	padding: 0 1.5rem;
}

.eyebrow {
	display: inline-block;
	font-family: var(--font-mono);
	font-size: 0.78rem;
	font-weight: 500;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--ember);
	margin-bottom: 1rem;
}

.section { padding: 6.5rem 0; }
.section-head { max-width: 640px; margin-bottom: 3rem; }
.section-head h2 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); }
.section-lead { color: var(--muted-on-light); font-size: 1.05rem; }

/* Buttons */
.btn {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.85rem 1.6rem;
	border-radius: var(--radius);
	font-family: var(--font-body);
	font-weight: 600;
	font-size: 0.95rem;
	border: 1px solid transparent;
	cursor: pointer;
	transition: transform var(--speed) ease, background var(--speed) ease, border-color var(--speed) ease, color var(--speed) ease;
}
.btn-primary { background: var(--ember); color: var(--ink); }
.btn-primary:hover { background: var(--text-light); transform: translateY(-1px); }
.btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn-ghost:hover { border-color: var(--ember); color: var(--ember); }

/* ==========================================================================
   Trace rail — signature scroll-linked spine
   ========================================================================== */
.trace-rail {
	position: fixed;
	left: 0; top: 0; bottom: 0;
	width: 3px;
	z-index: 60;
	pointer-events: none;
}
.trace-rail svg { width: 100%; height: 100%; }
.trace-path {
	stroke: url(#traceRailGradient);
	stroke-width: 4;
	fill: none;
	stroke-dasharray: 1000;
	stroke-dashoffset: 1000;
	transition: stroke-dashoffset 60ms linear;
}
@media (max-width: 780px) { .trace-rail { display: none; } }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background: rgba(0,0,0,0.92);
	backdrop-filter: blur(10px);
	box-shadow: 0 1px 0 rgba(255,255,255,0.05);
	transition: box-shadow var(--speed) ease;
}
.site-header.is-scrolled {
	box-shadow: 0 1px 0 rgba(255,255,255,0.1), 0 8px 24px rgba(0,0,0,0.35);
}
.header-inner {
	display: flex;
	align-items: center;
	gap: 2rem;
	padding-top: 1.1rem;
	padding-bottom: 1.1rem;
}
.brand { display: inline-flex; align-items: center; }
.brand-svg { height: 38px; width: auto; }
.custom-logo-link img { height: 34px; width: auto; }

.primary-nav { margin-left: auto; }
.nav-list { list-style: none; display: flex; gap: 2rem; margin: 0; padding: 0; }
.nav-list a {
	font-size: 0.95rem;
	color: var(--text-light);
	opacity: 0.85;
	transition: opacity var(--speed) ease;
}
.nav-list a:hover { opacity: 1; color: var(--ember); }

.nav-cta { margin-left: 0.5rem; white-space: nowrap; }

.menu-toggle {
	display: none;
	flex-direction: column;
	gap: 5px;
	background: none;
	border: none;
	cursor: pointer;
	padding: 0.5rem;
}
.menu-toggle span { width: 22px; height: 2px; background: var(--text-light); display: block; }

@media (max-width: 900px) {
	.nav-cta { display: none; }
	.menu-toggle { display: flex; }
	.primary-nav {
		position: absolute;
		left: 0; right: 0; top: 100%;
		background: var(--ink);
		max-height: 0;
		overflow: hidden;
		transition: max-height var(--speed) ease;
	}
	.primary-nav.is-open { max-height: 320px; }
	.nav-list { flex-direction: column; padding: 1.5rem; gap: 1.25rem; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
	position: relative;
	background: var(--ink);
	color: var(--text-light);
	padding: 7rem 0 6rem;
	overflow: hidden;
}
.hero-inner { position: relative; z-index: 2; max-width: 760px; }
.hero-headline {
	font-size: clamp(2.3rem, 5vw, 3.75rem);
	margin-bottom: 1.25rem;
}
.hero-lead {
	font-size: 1.15rem;
	color: var(--muted-on-dark);
	max-width: 560px;
	margin-bottom: 2.25rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-actions .btn-ghost { color: var(--text-light); }

.hero-grid {
	position: absolute;
	inset: 0;
	background-image:
		radial-gradient(circle at 82% 20%, rgba(255,106,61,0.18), transparent 45%),
		radial-gradient(circle at 95% 70%, rgba(47,217,196,0.14), transparent 40%),
		linear-gradient(var(--line-on-dark) 1px, transparent 1px),
		linear-gradient(90deg, var(--line-on-dark) 1px, transparent 1px);
	background-size: auto, auto, 56px 56px, 56px 56px;
	mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), transparent 92%);
	z-index: 1;
}

/* ==========================================================================
   Services
   ========================================================================== */
.services { background: var(--paper); }
.service-group { margin-bottom: 3.5rem; }
.service-group:last-child { margin-bottom: 0; }
.service-group-title {
	font-family: var(--font-mono);
	font-size: 0.8rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--muted-on-light);
	font-weight: 500;
	border-bottom: 1px solid var(--line-on-light);
	padding-bottom: 0.75rem;
	margin-bottom: 1.5rem;
}
.service-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.25rem;
}
.service-card {
	background: #fff;
	border: 1px solid var(--line-on-light);
	border-radius: var(--radius);
	padding: 1.6rem;
	transition: border-color var(--speed) ease, transform var(--speed) ease;
}
.service-card:hover { border-color: var(--ember); transform: translateY(-3px); }
.service-label {
	display: inline-block;
	font-family: var(--font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.08em;
	color: var(--ember);
	border: 1px solid rgba(255,106,61,0.4);
	border-radius: 3px;
	padding: 0.15rem 0.5rem;
	margin-bottom: 0.9rem;
}
.service-card h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.service-card p { color: var(--muted-on-light); font-size: 0.94rem; margin-bottom: 0; }

@media (max-width: 900px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .service-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Projekt-Slider (eigene Projekte / Kundenprojekte)
   ========================================================================== */
.projects-slider--dark { background: var(--ink); color: var(--text-light); }
.projects-slider--dark .section-lead { color: var(--muted-on-dark); }

.projects-empty-hint {
	border: 1px dashed var(--line-on-light);
	border-radius: var(--radius);
	padding: 1.5rem;
	font-size: 0.92rem;
	color: var(--muted-on-light);
}
.projects-empty-hint a { color: var(--ember); text-decoration: underline; }
.projects-slider--dark .projects-empty-hint {
	border-color: var(--line-on-dark);
	color: var(--muted-on-dark);
}

.slider { position: relative; }
.slider-track {
	display: flex;
	gap: 1.25rem;
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	padding-bottom: 0.5rem;
	-webkit-overflow-scrolling: touch;
}
.slider-track::-webkit-scrollbar { height: 6px; }
.slider-track::-webkit-scrollbar-thumb { background: var(--line-on-light); border-radius: 3px; }

.project-card {
	scroll-snap-align: start;
	flex: 0 0 clamp(260px, 32vw, 380px);
	background: #fff;
	border: 1px solid var(--line-on-light);
	border-radius: var(--radius);
	overflow: hidden;
	display: flex;
	flex-direction: column;
}
.projects-slider--dark .project-card {
	background: var(--ink-2);
	border-color: var(--line-on-dark);
}

.project-media { position: relative; }
.project-main-image { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.project-media-placeholder {
	width: 100%; aspect-ratio: 4 / 3;
	background: linear-gradient(135deg, rgba(47,217,196,0.15), rgba(255,106,61,0.15));
}
.project-thumbs {
	display: flex;
	gap: 0.4rem;
	padding: 0.6rem;
	background: rgba(0,0,0,0.35);
	position: absolute;
	bottom: 0; left: 0; right: 0;
	overflow-x: auto;
}
.project-thumb {
	flex: 0 0 auto;
	width: 42px; height: 32px;
	padding: 0; border: 2px solid transparent;
	border-radius: 2px;
	cursor: pointer;
	background: none;
	overflow: hidden;
}
.project-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-thumb:hover, .project-thumb:focus-visible { border-color: var(--ember); }

.project-body { padding: 1.4rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.project-body h3 { font-size: 1.1rem; }
.project-body p { color: var(--muted-on-light); font-size: 0.92rem; flex: 1; }
.projects-slider--dark .project-body p { color: var(--muted-on-dark); }
.project-actions { display: flex; flex-wrap: nowrap; gap: 0.5rem; margin-top: 0.25rem; }
.project-actions .btn {
	flex: 1 1 0;
	justify-content: center;
	padding: 0.6rem 0.7rem;
	font-size: 0.82rem;
	white-space: nowrap;
}
.projects-slider--dark .project-actions .btn-ghost { color: var(--text-light); }

.slider-nav {
	display: none;
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 40px; height: 40px;
	border-radius: 50%;
	border: 1px solid var(--line-on-light);
	background: #fff;
	font-size: 1.3rem;
	cursor: pointer;
	z-index: 5;
	align-items: center;
	justify-content: center;
}
.slider-prev { left: -20px; }
.slider-next { right: -20px; }
@media (min-width: 900px) { .slider-nav { display: flex; } }
.projects-slider--dark .slider-nav {
	background: var(--ink-2);
	border-color: var(--line-on-dark);
	color: var(--text-light);
}

/* ==========================================================================
   About
   ========================================================================== */
.about { background: var(--ink); color: var(--text-light); }
.about-inner {
	display: grid;
	grid-template-columns: 1.4fr 1fr;
	gap: 3.5rem;
	align-items: start;
}
.about-text p { color: var(--muted-on-dark); }
.about-text h2 { font-size: clamp(1.9rem, 3vw, 2.4rem); }
.about-facts {
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
	border-left: 1px solid var(--line-on-dark);
	padding-left: 1.75rem;
}
.fact { display: flex; flex-direction: column; gap: 0.25rem; }
.fact-label {
	font-family: var(--font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--teal);
}
.fact-value { font-family: var(--font-display); font-size: 1.15rem; }

@media (max-width: 820px) {
	.about-inner { grid-template-columns: 1fr; }
	.about-facts { border-left: none; border-top: 1px solid var(--line-on-dark); padding-left: 0; padding-top: 1.75rem; }
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact { background: var(--paper); }
.contact-inner {
	display: grid;
	grid-template-columns: 0.9fr 1.1fr;
	gap: 3.5rem;
}
.contact-intro p { color: var(--muted-on-light); }
.contact-intro address {
	margin-top: 2rem;
	padding-top: 1.5rem;
	border-top: 1px solid var(--line-on-light);
	font-family: var(--font-mono);
	font-size: 0.92rem;
	color: var(--text-dark);
	line-height: 1.8;
}

.contact-form { background: #fff; border: 1px solid var(--line-on-light); border-radius: var(--radius); padding: 2rem; }
.form-row { margin-bottom: 1.15rem; display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-size: 0.85rem; font-weight: 600; }
.form-row input[type="text"],
.form-row input[type="email"],
.form-row textarea {
	font-family: var(--font-body);
	font-size: 0.98rem;
	padding: 0.75rem 0.9rem;
	border: 1px solid var(--line-on-light);
	border-radius: var(--radius);
	background: var(--paper);
	color: var(--text-dark);
	resize: vertical;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--ember); }
.form-row-checkbox { flex-direction: row; align-items: flex-start; gap: 0.6rem; font-size: 0.88rem; }
.form-row-checkbox label { font-weight: 400; }
.form-row-checkbox a { color: var(--ember); text-decoration: underline; }

.hp-field { position: absolute; left: -9999px; top: -9999px; }

.form-status { margin-top: 1rem; font-size: 0.9rem; min-height: 1.2em; }
.form-status.is-success { color: #1b8a5a; }
.form-status.is-error { color: #c0392b; }

@media (max-width: 820px) { .contact-inner { grid-template-columns: 1fr; } }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--ink-2); color: var(--text-light); padding: 4rem 0 0; }
.footer-inner {
	display: grid;
	grid-template-columns: 1.4fr 1fr 1fr 1fr;
	gap: 2.5rem;
	padding-bottom: 3rem;
	border-bottom: 1px solid var(--line-on-dark);
}
.footer-brand p { color: var(--muted-on-dark); font-size: 0.92rem; margin-top: 1rem; }
.footer-heading {
	display: block;
	font-family: var(--font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--teal);
	margin-bottom: 1rem;
}
.footer-col address { color: var(--muted-on-dark); font-size: 0.92rem; line-height: 1.8; }
.footer-nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-nav-list a { color: var(--muted-on-dark); font-size: 0.92rem; }
.footer-nav-list a:hover { color: var(--ember); }

.footer-bottom {
	padding: 1.5rem;
	text-align: center;
	font-family: var(--font-mono);
	font-size: 0.78rem;
	color: var(--muted-on-dark);
}

@media (max-width: 780px) {
	.footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
	.footer-inner { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Legal pages (Impressum / Datenschutz / 404)
   ========================================================================== */
.legal-page { background: var(--paper); min-height: 50vh; }
.legal-inner { max-width: 760px; }
.legal-inner h1 { font-size: 2.2rem; margin-bottom: 2rem; }
.legal-content h2 { font-size: 1.2rem; margin-top: 2rem; }
.legal-content p, .legal-content address { color: var(--muted-on-light); }
.legal-note { font-size: 0.85rem; font-style: italic; border-top: 1px solid var(--line-on-light); padding-top: 1.5rem; margin-top: 2rem; }

.hero-404 { background: var(--ink); color: var(--text-light); text-align: center; padding: 8rem 0; }
.hero-404 p { color: var(--muted-on-dark); margin-bottom: 2rem; }

/* ==========================================================================
   Projekt-Einzelseite
   ========================================================================== */
.project-hero { background: var(--ink); color: var(--text-light); padding: 3.5rem 0 2.5rem; }
.project-back {
	display: inline-block;
	font-family: var(--font-mono);
	font-size: 0.82rem;
	color: var(--muted-on-dark);
	margin-bottom: 1.5rem;
}
.project-back:hover { color: var(--ember); }
.project-hero h1 { font-size: clamp(2rem, 4vw, 2.9rem); margin-bottom: 0; }

.project-hero-image {
	max-width: var(--container);
	margin: -1.5rem auto 0;
	padding: 0 1.5rem;
}
.project-hero-image img {
	width: 100%;
	max-height: 520px;
	object-fit: cover;
	border-radius: var(--radius);
}

.project-single-content { background: var(--paper); padding-top: 3.5rem; }
.project-single-content .legal-content { margin-bottom: 2rem; }
.project-single-content .legal-content p { color: var(--text-dark); font-size: 1.02rem; }

.project-gallery-section { background: var(--ink); color: var(--text-light); }
.project-gallery-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
	gap: 1rem;
}
.project-gallery-item {
	display: block;
	border-radius: var(--radius);
	overflow: hidden;
	border: 1px solid var(--line-on-dark);
}
.project-gallery-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform var(--speed) ease; }
.project-gallery-item:hover img { transform: scale(1.04); }