/* ------------------- */
/* Custom properties   */
/* ------------------- */

:root {
    /* colors */
    --clr-dark: 230 35% 7%;
    --clr-light: 231 77% 90%;
    --clr-white: 0 0% 100%;
    
    /* font-sizes */
    --fs-900: 9.375rem;
    --fs-800: 6.25rem;
    --fs-700: 3.5rem;
    --fs-600: 2rem;
    --fs-500: 1.75rem;
    --fs-400: 1.425rem;
    --fs-300: 1.25rem;
    --fs-200: 1.1rem;
    
    /* font-families */
    /* --ff-serif: "Merriweather", serif;
    --ff-sans-cond: sans-serif; */
    /* --ff-sans-normal: "Host Grotesk", sans-serif; */
    --ff-sans-normal: Helvetica;
    --ff-serif: serif;
}


/* ------------------- */
/* Reset               */
/* ------------------- */

/* https://piccalil.li/blog/a-modern-css-reset/ */

/* Box sizing */
*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

/* Reset margins */
body,
h1,
h2,
h3,
h4,
h5,
p,
figure,
picture {
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
    font-weight: 500;
    margin: 0;
}

/* set up the body */
body {
    font-family: var(--ff-sans-normal);
    font-size: var(--fs-400);
    color: hsl(--clr-dark);
    background-color: hsl( var(--clr-white) );
    line-height: 1.45;
    min-height: 100vh;
    margin: 0;
}

/* make images easier to work with */
img,
picture {
    max-width: 100%;
    display: block;
}

/* make form elements easier to work with */
input,
button,
textarea,
select {
    font: inherit;
}

/* remove animations for people who've turned them off */
@media (prefers-reduced-motion: reduce) {  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}


/* ------------------- */
/* Utility classes     */
/* ------------------- */

.flex {
    display: flex;
    gap: var(--gap, 1rem);
}

.grid {
    display: grid;
    gap: var(--gap, 1rem);
}

.flow > *:where(:not(:first-child)) {
    margin-top: var(--flow-space, 1rem);
    outline: 1px solid red;
}

.container {
    padding-inline: 2em;
    margin-inline: auto;
    max-width: 80rem;
}

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

/* typography */

.ff-serif { font-family: var(--ff-serif); } 
.ff-sans-cond { font-family: var(--ff-sans-cond); } 
.ff-sans-normal { font-family: var(--ff-sans-normal); }  

.letter-spacing-1 { letter-spacing: 4.75px; } 
.letter-spacing-2 { letter-spacing: 2.7px; } 
.letter-spacing-3 { letter-spacing: 2.35px; } 

.uppercase { text-transform: uppercase; }

.fs-900 { font-size: var(--fs-900); }
.fs-800 { font-size: var(--fs-800); }
.fs-700 { font-size: var(--fs-700); }
.fs-600 { font-size: var(--fs-600); }
.fs-500 { font-size: var(--fs-500); }
.fs-400 { font-size: var(--fs-400); }
.fs-300 { font-size: var(--fs-300); }
.fs-200 { font-size: var(--fs-200); }

.fs-900,
.fs-800,
.fs-700,
.fs-600 {
    line-height: 1.1;
}

/* ------------------- */
/* Compontents         */
/* ------------------- */



.wrapper {
    display: flex;
    height: 100vh;
    gap: 0;
}

.bold {
  font-weight: 500;
}
.title {
    padding-bottom: 0;
}
.author {
    font-size: var(--fs-300);
    padding-left: 0.2em;
}
.abstract {
    font-size: var(--fs-200);
}
.accordion {
    line-height: 1.1;
}
.left-col {
    /* background-image: url("background_800_1692.jpg"); */
    /* background-color: azure; */
    flex: 0.7;
    color: white;
    text-align: right;
    flex-direction: column;
    justify-content: space-between;
}





.video_container {
    display: flex;
    position: relative;
    height: 100%;
    background-color: aqua;
}

.video_container video {
  width: 100%;
  height: 100%; 
  object-fit: cover;
  z-index: 0;
}

.video_container .kopffuss {
    z-index: 1;
    position: absolute;
    width: 100%;
    height: 100%;
    display: grid;
}

.kopf {
    margin-right: 2em;
    margin-top: 1.5em;
    margin-left: 0.4em;
    container-type: inline-size;
}

.kopf h1 {
    font-size: clamp(0.5rem, 10cqi, 9rem);
    font-weight: 550;
} 

.fuss {
    text-align: left;
    margin-right: 2em;
    margin-bottom: 0.4em;
    margin-left: 0.6em;
    container-type: inline-size;
    align-self: end;
}

.fuss h2 {
    font-size: clamp(1rem, 4.5cqi, 5rem);
}
.fusssel a{
    text-decoration: none;
    color: white;
}
.fusssel a:hover {
    text-decoration: underline;
    color: white;
}

.right-col {
    margin-left: -2em;
    flex: 1;
    padding-top: 3em;
    overflow: auto;
    z-index: 2;
}

.content {
    max-width: 700px;
} 

.sektion {
    display: flex;
    margin-block: 1.5em;
    font-weight: 100;
}
.sektion h2 {
    writing-mode: vertical-lr;
    font-style: italic;
    font-weight: 200;
    color: white;
    position: sticky;
    top:0;
}

.sektion .rechts {
    writing-mode: vertical-lr;
}

.inhalte {
    margin-left: 0.5em;
    margin-right: 0.5em;
    line-height: 1.1;
}

.inhalte p {
    font-weight: 200;
    text-align: justify;
}

.sektion ul {
    list-style: none;
}
.sektion p a {
    text-decoration: none;
    color: var(--clr-dark);
    font-style: italic;
}

.sektion p a:hover {
    text-decoration: underline;
    color: var(--clr-dark);
}

.sektion ul a {
    text-decoration: none;
    color: var(--clr-dark);
    font-style: italic;
}

.sektion ul a:hover {
    text-decoration: underline;
    color: var(--clr-dark);
}

button{
    display: flex;
    background: transparent;
    border: 0;
    font: inherit;
    color: inherit;
    text-align: left;
    position: relative;
}

button > h3{
    font-size: var(--fs-400);
    font-weight: 200;
    padding-top: 0.5em;
}

h3 a {
    text-decoration: none;
    color: black;
}

h3 a:hover {
    text-decoration: underline;
}

.cross{
    position: relative;
    width: 0.75em;
    height: 1em;
    margin-top: 0em;
    margin-right: 0.1em;
    transition: transform 0.5s ease;
}

.cross::before,
.cross::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 0.6em;
  height: 1.7px;
  background: currentcolor;
  transition: transform 0.5s ease;
  transform-origin: center;
}

.cross::after {
  transform: rotate(90deg);
}

/* .cross.open {
  transform: rotate(45deg);
} */

button[aria-expanded="true"] .cross::after {
  /* opacity: 0; */
  transform: rotate(0deg);
}

.accordion-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 500ms ease;
}

.accordion-content[aria-hidden="false"] {
  grid-template-rows: 1fr;
}

.accordion-content > div {
  overflow: hidden;
  margin-top: 0.2em;
  margin-left: 1.5em;
  margin-bottom: 0.2em;
  font-size: var(--fs-300);
  font-weight: 100;
}

/* .accordion-content > div p {
  
}
 */

.minus-container{
    display: flex;
    background: transparent;
    border: 0;
    font: inherit;
    color: inherit;
    text-align: left;
    position: relative;
    flex-direction: row;
    line-height: 1.1;
    margin-bottom: 0.3em;
}

.minus-container > h3{
    font-size: var(--fs-400);
    font-weight: 200;
    padding-top: 0.5em;
}

.minus{
    position: relative;
    width: 0.75em;
    height: 1em;
    margin-top: 0em;
    margin-right: 0.1em;
}

.minus::before{
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 0.6em;
  height: 1.7px;
  background: currentcolor;
  transition: transform 0.5s ease;
  transform-origin: center;
}

.ball::before{
    content: '';
    display: inline-block;
    width: 15px;
    height: 15px;
    -moz-border-radius: 7.5px;
    -webkit-border-radius: 7.5px;
    border-radius: 7.5px;
    background-color: black;
}



.datenschutz ul {
    list-style-type: circle;
}