:root {
	--bg: #0b0c10;
	--fg: #e9eef2;
	--lg: #fff;
	--bl: #000;
	--muted: #aeb7c2;
	--primary: #4f8cff; 
	--radius: 16px;
	--maxw: 1300px;
	--main: #a0141e;
	--dr: #820e15;
}

@media (prefers-color-scheme: light) {
	:root {
        --bg: #ffffff;
        --fg: #0b0c10;
        --muted: #5a6673;
	}
}

* { 
	box-sizing: border-box; 
}

h2 {
	font-size: clamp(26px, 6vw, 50px);
    line-height: 1.05;
    padding-top: 0px;
    margin-top: 0px;
    margin-bottom: 20px;
}

html, body { 
	height: 100%; 
}

body {
	margin: 0;
    font-family: 'Fira Sans', Arial;
	color: var(--fg);
	background: var(--bg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Kopfzeile */
#header {
	position: fixed;
    inset: 0 0 auto 0;
    z-index: 10;
    background: #a0141e;
    height: 140px;
}

#header.scrolled {
  	height: 100px;
  	box-shadow: 0px 5px 5px rgba(0,0,0,0.1);
}

.brand img { 
	height: 110px;
	width: auto;
	display:block;
}

#header.scrolled .brand img { 
	height: 70px;
	width: auto;
	display:block;
}

.nav {
    margin: 0 auto;
    max-width: var(--maxw);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
}

.menu { 
	display: inline-block; 
	float: right;
	margin-right: -20px;
}
.menu a {
    color: var(--lg);
    text-decoration: none;
    opacity: 0.9;
    padding: 0px 20px;
}

.menu a:hover { opacity: 1; }

/* Hero-Bereich */
.hero {
    position: relative;
    min-height: 100vh; 
    display: grid;
    place-items: center;
    text-align: center;
    isolation: isolate;
    background-image:
        linear-gradient(to bottom, color-mix(in oklab, #000, transparent 90%), color-mix(in oklab, #000, transparent 90%)),
        url('../media/Canva-Haende-Laptop.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero > .inner {
    max-width: 900px;
    padding: 120px 20px 100px; 
}

.kicker {
	display: inline-block;
    font-size: clamp(12px, 2vw, 14px);
    text-transform: uppercase;
    letter-spacing: 0.24em;
    padding: 6px 10px;
    border-radius: 999px;
    background: color-mix(in oklab, var(--fg), transparent 70%);
    color: color-mix(in oklab, var(--bg), #000 10%);
    margin-bottom: 16px;
}

h1.hero-title {
    margin: 0 0 35px 0;
    font-size: clamp(32px, 6vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    text-wrap: balance;
    color: var(--lg);
}

h2.hero-title {
    color: var(--lg);
    font-size: clamp(32px, 6vw, 30px);
}

p.hero-text {
    margin: 0 auto 24px;
    max-width: 70ch;
    font-size: clamp(16px, 2.4vw, 20px);
    color: var(--fg);
    opacity: 0.9;
}

/* Inhaltliche Sektionen */

section {
    padding: 80px 20px 40px 20px;
}

.container { 
	max-width: var(--maxw); 
	margin: 0 auto; 
}

.grid3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 40px;
}

.grid4 {
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 40px;
    padding-top: 30px;
    padding-bottom: 40px;
}

@media (max-width: 1200px) { 

	.grid4 {
    	grid-template-columns: repeat(2, minmax(0,1fr));
	}

}

.split-section { 
	display: grid; 
	grid-template-columns: 1fr 1fr; 
	align-items: stretch; 
	gap: 40px; 
}

#themes {
	background: var(--main);
	margin: 80px 0 40px 0px;
}

#themes h2 {
	color: var(--lg);
}

#themes h3 {
	color: var(--bl);
	min-height: 60px;
}

#themes article {
	background: var(--lg);
	border-radius: 30px;
}

#themes article img {
	width: 100%;
	height: auto;
	display: block;
	aspect-ratio: 16 / 9;
	object-fit: cover;
	border-radius: 15px;
}

#themes ul {
	margin: 30px 0px 0px 0px;
	padding: 0px;
}

#themes ul li {
	margin: 10px 0px;
	list-style: none;
	background: var(--main);
	color: var(--lg);
	border-radius: 15px;
	padding: 8px 10px;
	text-align: center;
	display: block;
}

@media (max-width: 900px) { 
	.split-section { grid-template-columns: 1fr; text-align: center; } 
}

.split-section .text { 
	display: flex; 
	flex-direction: column; 
	justify-content: center; 
}

.split-section .bild { 
	display: flex; 
	align-items: stretch; 
}

.split-section img { 
	width: 100%; 
	height: 100%; 
	object-fit: cover; 
}


/* Countdown */

.countdown { 
	display:flex; align-items:center; 
	justify-content:center; 
	gap:.5rem; 
}

.countdown-title {
	width: 100%;
	display:block;
	margin: 10px;
}
.countdown .segment { 
	display:flex; 
	flex-direction:column; 
	align-items:center; 
	min-width:5ch; 
}
.countdown .value { 
	font-variant-numeric: tabular-nums; 
	font-weight:700; 
	font-size:clamp(1.8rem, 4vw + 1rem, 3.2rem); 
	line-height:1; 
}
.countdown .label { 
	font-size:.8rem; 
	opacity:.7; 
	margin-top:.25rem; 
}
.countdown .sep { 
	font-weight:700; 
	font-size:clamp(1.6rem, 4vw + .5rem, 2.6rem); 
	opacity:.6;  
	margin-top: -20px !important;
}
#akademie-countdown { 
	padding:1rem 1.25rem; 
	border-radius:1rem; 
	box-shadow:0 6px 20px rgba(0,0,0,.08); 
	background: color-mix(in oklab, var(--main), transparent 20%);
	color: var(--lg);
}

@media (max-width: 900px) {
    .grid3 { grid-template-columns: 1fr; }
}

.card {
    background: color-mix(in oklab, var(--fg), transparent 94%);
    padding: 24px 24px 40px 24px;
    text-align: center;
}
.card h3 { 
	margin-top: 0; 
	color: var(--main);
}

footer {
    padding: 10px 20px 10px;
    color: var(--lg);
    background: var(--dr);
}

.copyright {
	width: auto;
	display: inline-block;
}

.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;
}

#image-copyrights h3,
#image-copyrights p {
	color: var(--bl);
	opacity: .6;
}

/* Icons */

img.icon {
	height: 120px;
	width: auto;
	display: block;
	text-align: center;
	margin: 0 auto;
}


@media (max-width: 767px) {

h2.hero-title {
  	color: var(--lg);
  	font-size: clamp(22px, 6vw, 20px);
}

#header {
    height: 80px;
}

#header.scrolled {
  	height: 80px;
}

.brand img { 
	height: 60px;
}

#header.scrolled .brand img { 
	height: 60px;
}

.grid4 {
    grid-template-columns: repeat(1, minmax(0,1fr));
}

.hero > .inner {
    max-width: 900px;
    padding: 80px 20px 120px; 
}

.copyright {
	width: 100%;
	display: block;
}

.menu { 
	display: block; 
	clear: both;
	margin-right: 0px;
	text-align: left;
	float: left;
}

.menu a {
	padding: 10px 20px 0px 0px;
}

footer {
	height: 90px;
	padding-top: 20px;
}


}