/* Matrix Homeserver - Modern Styles */
:root {
	--bg: #0b0f14;
	--bg-elev: #121821;
	--bg-card: #161d28;
	--text: #e6edf3;
	--muted: #9aa7b4;
	--accent: #00d18c;
	--accent-2: #4fc3ff;
	--border: #223041;
	--danger: #ff6b6b;
	--radius: 14px;
	--shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
	margin: 0;
	padding: 0;
	background: radial-gradient(1200px 600px at 10% -10%, rgba(0, 209, 140, 0.15), transparent 60%),
				radial-gradient(1000px 500px at 100% 0%, rgba(79, 195, 255, 0.12), transparent 60%),
				var(--bg);
	color: var(--text);
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
	line-height: 1.6;
	min-height: 100vh;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header / Nav */
.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	backdrop-filter: blur(10px);
	background: rgba(11, 15, 20, 0.75);
	border-bottom: 1px solid var(--border);
}

.nav {
	max-width: 1200px;
	margin: 0 auto;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1rem 1.5rem;
}

.brand {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	font-weight: 700;
	font-size: 1.15rem;
	color: var(--text);
}

.brand-logo {
	width: 32px;
	height: 32px;
	border-radius: 8px;
	background: linear-gradient(135deg, var(--accent), var(--accent-2));
	display: grid;
	place-items: center;
	color: #001b12;
	font-weight: 900;
	box-shadow: 0 0 20px rgba(0, 209, 140, 0.4);
}

.nav-links {
	display: flex;
	gap: 1.5rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.nav-links a {
	color: var(--muted);
	font-weight: 500;
	transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
	color: var(--text);
	text-decoration: none;
}

/* Layout */
.container {
	max-width: 1100px;
	margin: 0 auto;
	padding: 3rem 1.5rem;
}

.container-narrow {
	max-width: 820px;
	margin: 0 auto;
	padding: 3rem 1.5rem;
}

/* Hero */
.hero {
	text-align: center;
	padding: 5rem 1.5rem 3rem;
	max-width: 900px;
	margin: 0 auto;
}

.hero h1 {
	font-size: clamp(2.2rem, 5vw, 3.6rem);
	line-height: 1.15;
	margin: 0 0 1rem;
	background: linear-gradient(135deg, #fff, var(--accent));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

.hero p.lead {
	font-size: 1.2rem;
	color: var(--muted);
	max-width: 680px;
	margin: 0 auto 2rem;
}

.badge {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.35rem 0.85rem;
	border-radius: 999px;
	background: rgba(0, 209, 140, 0.1);
	border: 1px solid rgba(0, 209, 140, 0.3);
	color: var(--accent);
	font-size: 0.85rem;
	font-weight: 600;
	margin-bottom: 1.25rem;
}

.badge .dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--accent);
	box-shadow: 0 0 10px var(--accent);
	animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.4; }
}

.cta-row {
	display: flex;
	gap: 1rem;
	justify-content: center;
	flex-wrap: wrap;
}

.btn {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.85rem 1.6rem;
	border-radius: 10px;
	font-weight: 600;
	transition: transform 0.15s, box-shadow 0.15s;
	border: 1px solid transparent;
	cursor: pointer;
	font-size: 1rem;
}

.btn-primary {
	background: linear-gradient(135deg, var(--accent), #00b377);
	color: #001b12;
	box-shadow: 0 8px 24px rgba(0, 209, 140, 0.35);
}

.btn-primary:hover {
	transform: translateY(-2px);
	text-decoration: none;
	box-shadow: 0 12px 28px rgba(0, 209, 140, 0.45);
}

.btn-secondary {
	background: transparent;
	color: var(--text);
	border-color: var(--border);
}

.btn-secondary:hover {
	background: var(--bg-elev);
	text-decoration: none;
	border-color: var(--accent);
}

/* Sections */
section {
	padding: 3rem 0;
}

.section-title {
	font-size: 2rem;
	margin: 0 0 0.5rem;
	text-align: center;
}

.section-sub {
	color: var(--muted);
	text-align: center;
	margin: 0 auto 2.5rem;
	max-width: 640px;
}

/* Cards Grid */
.grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 1.25rem;
}

.card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 1.6rem;
	transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
	transform: translateY(-4px);
	border-color: var(--accent);
}

.card .icon {
	width: 44px;
	height: 44px;
	border-radius: 10px;
	display: grid;
	place-items: center;
	background: rgba(0, 209, 140, 0.12);
	color: var(--accent);
	font-size: 1.4rem;
	margin-bottom: 1rem;
}

.card h3 {
	margin: 0 0 0.5rem;
	font-size: 1.15rem;
}

.card p {
	margin: 0;
	color: var(--muted);
	font-size: 0.95rem;
}

/* Info Boxes */
.info-box {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-left: 4px solid var(--accent);
	border-radius: var(--radius);
	padding: 1.5rem 1.75rem;
	margin: 1.5rem 0;
}

.info-box.warning {
	border-left-color: #ffb547;
	background: rgba(255, 181, 71, 0.05);
}

.info-box h3 {
	margin: 0 0 0.5rem;
	color: var(--text);
}

.info-box p:last-child { margin-bottom: 0; }

/* Step / Registration */
.steps {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 1.25rem;
	counter-reset: step;
}

.step {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 1.5rem;
	position: relative;
	counter-increment: step;
}

.step::before {
	content: counter(step);
	position: absolute;
	top: -14px;
	left: 1.25rem;
	width: 32px;
	height: 32px;
	border-radius: 50%;
	background: linear-gradient(135deg, var(--accent), var(--accent-2));
	color: #001b12;
	font-weight: 800;
	display: grid;
	place-items: center;
	box-shadow: 0 4px 12px rgba(0, 209, 140, 0.4);
}

.step h3 {
	margin: 0.5rem 0 0.5rem;
	font-size: 1.05rem;
}

.step p {
	margin: 0;
	color: var(--muted);
	font-size: 0.95rem;
}

/* Article (Datenschutz / Impressum) */
.article h1 {
	font-size: 2.4rem;
	margin: 0 0 0.5rem;
}

.article .subtitle {
	color: var(--muted);
	margin-bottom: 2.5rem;
}

.article h2 {
	font-size: 1.4rem;
	margin: 2.5rem 0 0.75rem;
	padding-bottom: 0.4rem;
	border-bottom: 1px solid var(--border);
}

.article h3 {
	font-size: 1.1rem;
	margin: 1.5rem 0 0.5rem;
	color: var(--text);
}

.article p, .article li {
	color: #d5dce4;
}

.article ul {
	padding-left: 1.25rem;
}

.article ul li {
	margin-bottom: 0.4rem;
}

/* Screenshots (Anleitung) */
.screenshot {
	margin: 1.25rem 0 2rem;
	padding: 0;
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
	box-shadow: var(--shadow);
}

.screenshot img {
	display: block;
	width: 100%;
	height: auto;
	max-width: 420px;
	margin: 0 auto;
	background: #000;
}

.screenshot figcaption {
	padding: 0.75rem 1rem;
	color: var(--muted);
	font-size: 0.9rem;
	text-align: center;
	border-top: 1px solid var(--border);
}

/* Footer */
.site-footer {
	border-top: 1px solid var(--border);
	background: var(--bg-elev);
	padding: 2rem 1.5rem;
	margin-top: 4rem;
}

.footer-inner {
	max-width: 1100px;
	margin: 0 auto;
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 1rem;
	color: var(--muted);
	font-size: 0.9rem;
}

.footer-inner a { color: var(--muted); }
.footer-inner a:hover { color: var(--text); }

.footer-links {
	display: flex;
	gap: 1.25rem;
	flex-wrap: wrap;
}

/* Mobile nav toggle */
@media (max-width: 640px) {
	.nav-links {
		gap: 1rem;
		font-size: 0.9rem;
	}
	.hero { padding: 3rem 1rem 2rem; }
	.footer-inner { flex-direction: column; text-align: center; }
	.footer-links { justify-content: center; }
}