:root {
  --color-violet: #7664a0;
  --color-yellow: #f6a800;
  --color-orange: #dd6108;
  --color-red: #b1063a;

  --border-radius-lg: 15px;
  --border-radius-md: 4px;
}

html {
  height: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  padding: 0;
  font-size: 14px;
  font-family: "Roboto", "Lucida Grande", "DejaVu Sans", "Bitstream Vera Sans",
    Verdana, Arial, sans-serif;
  color: var(--text-color);
  background: #7664a0;
}

/* GLOBAL DEFAULTS */

p,
ol,
ul,
dl {
  margin: 0.2em 0 0.8em 0;
}

p {
  padding: 0;
  line-height: 140%;
}

h1,
h2,
h3,
h4,
h5 {
  font-weight: bold;
}

h1 {
  font-weight: 2000;
  font-size: 50px;
  color: #fff;
  text-align: center;
  padding: 5px;
  margin: 2% 0 20px;
  opacity: 0.5;
}

h2 {
  font-size: 16px;
  margin: 0.5em 0 0.5em 0;
}

h2.subhead {
  font-weight: normal;
  margin-top: 0;
}

h3 {
  font-size: 14px;
  margin: 0.8em 0 0.3em 0;
  color: #666;
  font-weight: bold;
}

h4 {
  font-size: 12px;
  margin: 1em 0 0.8em 0;
  padding-bottom: 3px;
}

h5 {
  font-size: 10px;
  margin: 1.5em 0 0.5em 0;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 1px;
}

li ul {
  margin-bottom: 0;
}

li,
dt,
dd {
  font-size: 13px;
  line-height: 20px;
}

dt {
  font-weight: bold;
  margin-top: 4px;
}

dd {
  margin-left: 0;
}

form {
  margin: 0;
  padding: 0;
}

fieldset {
  margin: 0;
  min-width: 0;
  padding: 0;
  border: none;
  border-top: 1px solid #eee;
}

/* CONTENT CONTAINER */

.problem-table {
  width: 100%;
  background: var(--color-orange);
  align-content: center;
  color: #ffffff;
  
  /* Zuschneiden in Trapezform */
  clip-path: polygon(5% 0, 90% 25pt, 100% 100%, 0 100%);
  padding-bottom: 5pt;
  padding-top: 20pt;
}

.problem-table-content {
  height: 100%;
  display: flex;
  justify-content: space-between; /* Text links, Bild rechts */
  align-items: center;
  padding-left: 5%;
  padding-right: 10%;
  color: #ffffff;
}

.hidden {
  display: none;
}

.header-container {
  display: flex;
  justify-content: center;  
  align-items: center;
  position: relative;  
}

.toggle-btn {
  position: absolute;
  right: 10%;         
  font-size: 28px;           
  color: white;
  background: none;
  border: none;
  cursor: pointer;
}


/* HEADER */

#header {
  width: 100%;
  height: 120px;
  background: #f1b600; /* dein Gelb */
  
  /* Zuschneiden in Trapezform */
  clip-path: polygon(5% 0, 103% 0, 98% 75%, 10% 100%);
  padding-bottom: 5pt;
}

#header h1 {
  margin: 0;
}

.header-content {
  height: 100%;
  display: flex;
  justify-content: space-between; /* Text links, Bild rechts */
  align-items: center;
  padding-left: 10%;
  padding-right: 2%;
}

/* IMAGES */

#logo_negative {
  height: 58px;
  width: 58px;
  float: right;
}

#language-icon {
  height: 10px;
  width: 10px;
  float: left;
}

#language-icon-button {
  padding: 0;
}

#room_centered {
  margin: 0 10px 0 10px;
}

.room_section {
  display: block;
  max-width: 1000px;
  margin: 0 auto 21px auto;
}

.problem_image {
  max-width: 100%;
  height: auto;
}

.problem_body {
  flex: 1;
}

.problem_container {
  display: flex;
  justify-content: center;
}


.problem_inner {
  margin: 10px;
}

.solution_image {
  height: 30%;
  float: left;
  margin: 5% 10%;
}