/* ==========================================================================
   style.css
   1. Variablen (Farben, Abstände, Raster)
   2. Grundlagen
   3. Typografie
   4. Gemeinsame Bausteine (Links, Buttons, Fokus, Zierkanten)
   5. Kopfzeile & Navigation
   6. Abschnitte: Start, Über mich, Projekte, Kontakt
   7. Projekt-Popup
   8. Fußzeile
   9. Responsive (Desktop zuerst: von breit nach schmal)
   10. Hover & reduzierte Bewegung
   ========================================================================== */

/* ==========================================================================
   1. Variablen (Farben, Abstände, Raster)
   ========================================================================== */

:root {
  --xrot: rgba(199, 87, 192);
  --xrot_dunkel: rgba(160, 50, 155);
  --ygrün: rgba(100, 180, 212);
  --zblau: rgba(71, 94, 222);
  --text: rgba(30, 30, 30);
  --white: rgba(255, 255, 255);
  --grey: rgba(220, 220, 230);
  --darkgrey: rgba(100, 100, 130);

  --transitionTime: all 300ms ease-in-out;
  --shadow: 0 0 0.2rem rgba(0, 0, 0, 50%);

  --padding_large: 4rem;
  --padding_small: 1rem;

  --nav_height: 4rem;
  --edge_height: 3rem; /* Höhe der gezackten Kanten */
  --page_gutter: max(5vw, calc((100% - 75rem) / 2));
  --grid_gap: 4rem;

  --slider_width: clamp(200px, min(80vw, 50vh), 500px);

  --popup_height: calc(100% - 4rem - 6rem);
  --popup_slide_w: calc((var(--popup_max_height) - 7rem) * 0.8);
  --popup_max_height: 80vh;

  font-family: "Inter", sans-serif;
}

/* ==========================================================================
   2. Grundlagen
   ========================================================================== */

* {
  text-wrap: balance;
  text-align: left;
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  list-style: none;
  border: none;

  &::marker {
    font-size: 1.5rem;
  }
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;

  &::-webkit-scrollbar {
    display: none;
  }
}

@supports not (overflow: clip) {
  html {
    overflow-x: hidden;
  }
}

body {
  height: fit-content;
  width: 100%;
  overflow: clip;
}

main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

section,
footer {
  overflow-x: clip;
}

section {
  position: relative;
  width: 100%;
}

main section[data-path] {
  scroll-margin-top: 5rem;
}

img {
  width: auto;
  height: auto;
  z-index: 1;
}

a {
  width: fit-content;
}

video {
  position: relative;
}

/* ==========================================================================
   3. Typografie
   ========================================================================== */

h1,
h2 {
  font-weight: 900;
  text-transform: uppercase;
  width: 100%;
  height: min-content;
  color: var(--text);
}

h1 {
  > span:first-of-type {
    font-family: "Quadrangle", sans-serif;
    font-size: clamp(2rem, 7vw, 8rem);
    line-height: 1em;
    text-align: left;
    margin: 0;

    &:after {
      content: "";
      display: block;
      position: relative;
      bottom: 0.1em;
      width: auto;
      height: 0.2em;
      background-color: var(--zblau);
    }
  }

  > span:last-of-type {
    display: flex;
    justify-content: space-between;

    > span {
      font-size: clamp(0.875rem, 3vw, 1.2rem);
      font-weight: 900;
    }
  }
}

h2,
#projects h3,
.project_tile > span span:first-child {
  line-height: 1em !important;
  font-weight: 900;
  text-transform: uppercase;
  overflow-wrap: normal;
  font-family: "inter", sans-serif;
  font-size: 1.5rem;
  text-align: left;
  margin: 0;
  text-wrap-mode: wrap;
  text-wrap-style: balance;

  &:after {
    content: "";
    display: block;
    position: relative;
    bottom: 0.1em;
    width: var(--underline-w);
    height: 0.2em;
    background-color: var(--zblau);
  }
}

h3 {
  font-size: clamp(1rem, 3vw, 1.2rem);
}

p,
li,
span,
label {
  text-wrap: pretty;
  font-size: 1rem;
  line-height: 1.5em;
}

li {
  margin: 0.5rem 0 0 1rem;
  height: min-content;
  list-style-position: outside;

  &:first-of-type {
    margin-top: 0;
  }

  span {
    height: min-content;
  }
}

/* ==========================================================================
   4. Gemeinsame Bausteine
   ========================================================================== */

.link {
  text-decoration: solid underline;
  color: var(--white);
  font-size: 1rem;
}

/* Aktions-Buttons, Hover-Füllung jeweils als Maske auf ::after:
   - Primary: blau, Hover weiß über den ganzen Button (ohne Rand)
   - Secondary: blau, Hover weiß innerhalb eines blauen Rands
   - Tertiary: weiß mit blauem Rand, Hover blau */
.button_primary,
.button_secondary,
.button_tertiary {
  --button_padding_y: 0.75em;
  --button_padding_x: 1.75em;
  --button_cut: var(--button_padding_y); /* Größe der schrägen Ecke */
  --button_border: 5px;
  /* innere Form: Diagonale versetzt, damit der Rand überall gleich breit ist */
  --button_cut_inner: calc(var(--button_cut) - 0.59 * var(--button_border));
  --button_shape_inner: polygon(
    0 0,
    100% 0,
    100% 100%,
    var(--button_cut_inner) 100%,
    0 calc(100% - var(--button_cut_inner))
  );

  position: relative;
  isolation: isolate;
  display: inline-block; /* auch als <a>, damit Abstände greifen */
  width: fit-content;
  height: fit-content;
  padding: var(--button_padding_y) var(--button_padding_x);
  border: 0;
  background: var(--zblau);
  clip-path: polygon(
    0 0,
    100% 0,
    100% 100%,
    var(--button_cut) 100%,
    0 calc(100% - var(--button_cut))
  );
  /* feste Schrift statt inherit, sonst hängt die Größe vom Umfeld ab */
  font-family: inherit;
  font-size: 1rem;
  font-weight: 900;
  line-height: 1.2;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;

  &::after {
    content: attr(data-text);
    position: absolute;
    inset: var(--button_border);
    padding: calc(var(--button_padding_y) - var(--button_border))
      calc(var(--button_padding_x) - var(--button_border));
    clip-path: var(--button_shape_inner);
    mask: linear-gradient(#000 0 0) left / 0% 100% no-repeat;
    transition: mask-size 0.4s ease;
  }

  &:hover::after,
  &:focus-visible::after,
  &.active::after {
    mask-size: 100% 100%;
  }
}

/* Primary ohne Rand: die weiße Füllung deckt den ganzen Button */
.button_primary {
  color: var(--white);

  &::after {
    inset: 0;
    padding: var(--button_padding_y) var(--button_padding_x);
    clip-path: none;
    /* Seite, von der die Füllung einläuft bzw. zu der sie abläuft; in der
       Navigation setzt navIndicator.js sie je nach Scrollrichtung */
    mask-position: var(--fill_from, left);
    background: var(--white);
    color: var(--zblau);
  }
}

/* Secondary: wie Primary, aber die weiße Füllung bleibt im blauen Rand */
.button_secondary {
  color: var(--white);

  &::after {
    background: var(--white);
    color: var(--zblau);
  }
}

.button_tertiary {
  color: var(--zblau);

  &::before {
    content: "";
    position: absolute;
    inset: var(--button_border);
    z-index: -1;
    background: var(--white);
    clip-path: var(--button_shape_inner);
  }

  &::after {
    background: var(--zblau);
    color: var(--white);
  }
}

/* Gleich breite Buttons in der Leiste */
.hideOnMobile .button_primary {
  min-width: 9em;
}

:focus-visible {
  outline: 0.2rem solid var(--zblau);
  outline-offset: 0.2rem;
}

nav :focus-visible,
footer :focus-visible {
  outline-color: var(--white);
}

.borders {
  position: absolute;
  background-color: var(--zblau);
  background-size: contain;
  width: 100% !important;
  height: 100%;
  left: 0;
  filter: drop-shadow(var(--shadow));
  -webkit-filter: drop-shadow(var(--shadow));

  &::before,
  &::after,
  & > .magnetic_edge {
    background-size: contain;
    background-repeat: repeat-x;
    z-index: -1;

    content: "";
    position: absolute;
    left: 0;
    width: 100vw;
    min-width: 100rem;
    overflow: hidden;
    display: flex;
    height: var(--edge_height);
  }

  &::before,
  & > .edge_before {
    top: calc(0.1rem - var(--edge_height));
  }

  &::before {
    background-image: url("../images/SVG/border/content_top.svg");
  }

  &::after,
  & > .edge_after {
    top: 99.9%;
  }

  &::after {
    background-image: url("../images/SVG/border/content_bottom.svg");
  }
}

.borderWhite {
  position: absolute;
  background-color: var(--white);
  width: 100% !important;
  height: 100%;
  left: 0;
  filter: drop-shadow(var(--shadow));
  -webkit-filter: drop-shadow(var(--shadow));

  &::before,
  & > .magnetic_edge {
    background-image: url("../images/SVG/border/white_top.svg");
    background-size: contain;
    background-repeat: repeat-x;
    z-index: -1;

    content: "";
    position: absolute;
    top: calc(0.1rem - var(--edge_height));
    left: 0;
    width: 100vw;
    min-width: 100rem;
    overflow: hidden;
    display: flex;
    height: var(--edge_height);
  }
}

/* Magnetische Kanten (javascript/magneticEdges.js): ein Inline-SVG ersetzt
   das Pseudoelement und wird von derselben Regel positioniert */
.magnetic_edge {
  pointer-events: none;
  background-image: none !important;
  /* Corners may reach past the box (DEPTH > 1, pull, click blast) */
  overflow: visible !important;

  svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
  }
}

.has_edge_before::before,
.has_edge_after::after {
  display: none !important;
}

/* ==========================================================================
   5. Kopfzeile & Navigation
   ========================================================================== */

header {
  position: fixed;
  height: 0;
  width: 100%;
  z-index: 999;

  img {
    height: 100%;
    width: auto;
  }

  a:has(img) {
    height: 60%;
    position: absolute;
    left: var(--page_gutter);
  }
}

nav {
  display: flex;
  justify-content: flex-end;
  position: absolute;
  height: var(--nav_height);
  width: 100%;

  background-color: var(--zblau);

  &::after,
  & > .magnetic_edge {
    background-image: url("../images/SVG/border/header.svg");
    background-size: contain;
    background-position: bottom left;
    background-repeat: repeat-x;

    z-index: -1;

    content: "";
    position: absolute;
    bottom: calc(-1 * var(--edge_height));
    left: 0;
    height: var(--edge_height);
    width: 100%;
    display: flex;

    filter: drop-shadow(var(--shadow));
    -webkit-filter: drop-shadow(var(--shadow));

    min-width: 100rem;
    overflow: hidden;
  }

  button {
    background-color: transparent;
    position: absolute;
    right: 0;
    width: 2rem;
  }
}

.hideOnMobile {
  gap: 1em;
  align-items: center;

  height: var(--nav_height);
  width: 100%;

  position: relative;
  right: 0;
  top: 0;

  display: flex;
  justify-content: center;
}

.mobileLogo {
  z-index: 0;
  display: none;
}

.hamburgerWrapper {
  height: 0;
  width: 0;
  display: none;
  position: absolute;
  top: 0;
  right: 0;
}

.hamburgerMenu {
  position: relative;
  height: 100vh;
  width: 350px;
  right: -100%;
  display: flex;
  filter: drop-shadow(var(--shadow));

  div:first-child {
    position: relative;
    left: 1px;
    width: 5rem;
    height: 100%;
    background-color: transparent;
    background-image: url(/images/SVG/border/border_R.svg);
    background-size: cover;
  }

  div:nth-child(2) {
    flex-direction: row;
    position: absolute;
    display: flex;
    bottom: 2rem;
    left: 55%;

    transform: translateX(-50%);

    grid-template-rows: 1fr;
    grid-template-columns: auto auto;
    grid-gap: 1rem;
  }

  div:last-child {
    background-color: var(--zblau);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: end;
    padding: 1rem;
    gap: 1rem;
  }

  button {
    position: relative;
    margin: 1rem;
  }
}

/* ==========================================================================
   6. Abschnitte
   ========================================================================== */

/* --- Start (Hero) -------------------------------------------------------- */

#start {
  background-image: url("/images/background_1.webp");
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  height: 100vh;
  gap: var(--grid_gap);
  padding: 0 var(--page_gutter);

  h1,
  span {
    color: var(--text);
  }

  h1 > span {
    font-size: clamp(2rem, 5vw, 4.75rem);
  }

  img:first-child {
    position: relative;
    top: 100%;
    transform: translate(0, -100%);
    height: max(40vw, 80vh);
    justify-self: end;
  }

  /* Titel (Link zu Über mich) und darunter die CTA-Buttons */
  > .hero_text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2.5rem;
    grid-column-start: 2;
    grid-column-end: 3;
    height: fit-content;
    align-self: center;
  }
}

.hero_actions {
  position: relative;
  z-index: 1; /* über dem Foto, das ab 1200px absolut darunter liegt */
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- Über mich ----------------------------------------------------------- */

#about {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: row;
  justify-content: center;

  background-color: transparent;
  align-items: center;
  color: var(--white) !important;
  padding: 10rem var(--page_gutter);
  gap: 10vh;

  h3 {
    padding-top: 2rem;
    padding-bottom: 0.7rem;
  }

  > div:last-child {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6rem var(--grid_gap);
    width: 100%;
  }

  /* :where() hält die Spezifität niedrig; :last-child schließt .borders aus,
     in das magneticEdges.js die Kanten-divs einsetzt */
  > div:where(:last-child) > div {
    display: flex;
    column-gap: 2rem;
    padding: 6rem 0 0;

    > h2 {
      grid-column: 1/-1;
      margin-top: 0 !important;
    }

    div {
      width: min-content;
    }
  }

  > div:where(:last-child) > div:last-child {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: flex-start;
    padding: 8rem 0 0;

    h2 {
      color: var(--white);
      margin-top: var(--padding_large);

      &::after {
        background-color: var(--white);
      }
    }
  }

  .info {
    position: relative;
    margin: 0;
    min-width: 0;
    width: 100%;
    max-width: 45rem;

    /* Lebenslauf-Button, Dateityp und -größe daneben (bricht bei wenig Platz um) */
    .download {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.5rem 1rem;
      margin-top: 2rem;
    }

    .file_info {
      color: var(--darkgrey);
      font-size: 0.9rem;
    }
  }
}

.info {
  padding: 2rem;
  position: relative;
  min-width: 650px;
  max-width: fit-content;
  height: max-content;
  margin: 0 0 15rem 10vw;

  &::before {
    content: "";
    border: 2rem solid;
    border-image: url(/images/SVG/borderWhite.svg) 33% fill;
    color: var(--text);

    filter: drop-shadow(var(--shadow));
    -webkit-filter: drop-shadow(var(--shadow));
    position: absolute;

    width: calc(100% - 4rem);
    height: calc(100% - 4rem);
    left: 0;
    top: 0;
  }

  h2,
  span,
  p {
    position: relative;
    z-index: 1;
  }

  p {
    margin: 1rem 0;
    color: var(--text);
  }
}

.barGraph {
  color: var(--white);
  width: 100%;

  h3 {
    color: var(--white);
  }

  div {
    display: flex;
    flex-direction: column;
  }

  ul {
    display: grid;
    grid-template-columns: repeat(2, auto 1fr);

    span {
      margin-bottom: 0.2rem;
    }

    li {
      margin: 1rem 0 0 0;
      display: grid;
      grid-template-columns: subgrid;
      grid-template-rows: subgrid;
      grid-column: span 2;

      h4 {
        font-size: clamp(0.8rem, 10vw, 1rem);
      }

      span {
        text-wrap: nowrap;
        font-size: clamp(0.8rem, 10vw, 1rem);
        opacity: 0.9;
      }

      &:nth-child(1),
      &:nth-child(2) {
        margin-top: 0;
      }

      &:nth-child(even) {
        margin-left: var(--padding_small);
      }
    }

    img {
      filter: drop-shadow(var(--shadow));
      margin-right: 0.7rem;
      justify-self: end;
      grid-column: 1/2;
      height: clamp(2rem, 10vw, 3rem);
    }
  }
}

.kenntnisse {
  color: var(--white);

  ul {
    li {
      line-height: 1.1rem;
      position: relative;
      margin: 0;
      list-style: url(/images/SVG/listDot.svg) inside;
      text-wrap: nowrap;

      span {
        text-wrap: nowrap;
      }
    }
  }
}

/* --- Projekte ------------------------------------------------------------ */

#projects {
  background-color: var(--grey);
  padding: 20vh var(--page_gutter);

  > h2 {
    font-size: 2rem;
    margin-bottom: var(--padding_large);
  }

  > div {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-gap: 3rem;
  }
}

.project_tile {
  position: relative;
  display: flex;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-image: url(/images/background_1.webp);
  aspect-ratio: 4/5;

  transition: scale 0.3s ease-in-out;

  filter: drop-shadow(var(--shadow));

  > span {
    z-index: 2;
    position: relative;
    height: fit-content;
    border: 0.8em solid;
    border-image: url(/images/SVG/TileBorder.svg) 33% fill;
    color: var(--text);
  }

  img {
    align-self: center;
    position: absolute;
    width: 100%;
    height: auto;
  }
}

/* --- Kontakt ------------------------------------------------------------- */

#contact {
  position: relative;
  display: grid;
  align-content: center;
  z-index: 1;
  padding: 4rem var(--page_gutter) 10rem;

  #contact-form {
    z-index: 1;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--grid_gap);
    align-items: start;
  }

  span {
    font-size: 1.2rem;
  }

  .contact_text {
    margin: 1.5rem 0 0;
    font-size: 1.2rem;
  }

  .contact_links {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    margin: 1.5rem 0 0;
    padding: 0;
    font-size: 1.2rem;
    font-weight: 900;

    li {
      display: flex;
      align-items: center;
      gap: 0.8rem;
      min-height: 44px;
      margin: 0;
    }

    svg {
      flex-shrink: 0;
      color: var(--zblau);
    }
  }

  h2 {
    margin: 0 0 0.1rem;
  }

  h3 {
    width: fit-content;
    max-width: 100%;
    margin: 1rem 0 0.5rem;
    font-family: "Quadrangle", sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1em;
    text-transform: uppercase;
    text-align: left;
  }

  .field label {
    font-size: 1rem;
    font-weight: bold;
  }

  .required_note {
    margin: 0;
    font-size: 0.9rem;
  }

  a {
    width: fit-content;
    text-decoration: underline solid;
    color: var(--zblau);
  }
}

form {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.field_wide {
  grid-column: 1 / 3;
}

input:not([type="checkbox"]) {
  height: 3rem;
}

input,
textarea {
  border-bottom: 0.3rem solid var(--grey);
  border-left: 0.3rem solid var(--grey);
  box-shadow: var(--shadow);
  padding: 0.7rem;
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
}

input:focus,
textarea:focus {
  border: none;
  border-bottom: 0.3rem solid var(--zblau);
  border-left: 0.3rem solid var(--zblau);
}

input:not([type="checkbox"]):focus-visible,
textarea:focus-visible {
  outline: none;
}

textarea {
  height: 12rem;
  min-height: 10rem;
  resize: vertical;
}

.contact_end {
  grid-column: 1 / 3;
}

.contact_end {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 0;
  padding: 0;
  height: min-content;

  div {
    align-items: flex-start;
    display: flex;
    gap: var(--padding_small);
  }

  input {
    aspect-ratio: 1/1;
    height: 1.5rem;
  }

  * {
    align-items: center;
  }
}

.contact_submit {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
}

#contact-dse {
  height: 1.5rem;
  width: 1.5rem;
  accent-color: var(--zblau);
}

#contact-status {
  max-width: 40rem;
  padding-left: 0.8rem;
  border-left: 0.3rem solid var(--xrot_dunkel);
  color: var(--xrot_dunkel);
  font-weight: 900;

  &:focus {
    outline: none;
  }

  &:empty {
    display: none;
  }
}

.contact_trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ==========================================================================
   7. Projekt-Popup
   ========================================================================== */

html.popup_open {
  overflow: hidden;
  overscroll-behavior: none;
  scrollbar-gutter: stable;
}

#project_popup {
  overscroll-behavior: contain;
  overflow: hidden;

  position: fixed;
  justify-content: center;
  align-items: center;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: none;
  outline: none;
  color: var(--text);
  background-color: rgba(30, 30, 30, 0.264);

  opacity: 0;

  transition: opacity 0.1s ease-in-out;

  &[open] {
    display: flex;
  }

  &::backdrop {
    background: transparent;
  }
}

#project_popup_window {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: fixed;

  max-width: 90vw;
  max-height: var(--popup_max_height);
  width: fit-content;

  border: var(--padding_small) solid;
  border-image: url(/images/SVG/borderWhite.svg) calc(1 / 3 * 100%) fill;
}

#project_popup_nav {
  width: 100%;
  z-index: 4;
  padding: 1rem 0 0 1rem;
  justify-content: space-between;
  display: flex;
}

#close_popup {
  height: 2rem;
  width: 2rem;
  position: relative;
  cursor: pointer;
  background: none;

  img {
    height: 100%;
  }
}

#project_popup_content {
  justify-content: center;
  width: 100%;
  position: relative;
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
  margin: 1rem;
  gap: 2rem;

  > div:first-of-type {
    justify-content: center;
    display: flex;
    div {
      max-height: 100%;
      max-width: 100%;
      aspect-ratio: 4/5;
    }
  }
}

#slider {
  position: relative;
  display: flex;
  justify-content: center;
  aspect-ratio: 4 / 5;
  justify-self: center;
  overflow: hidden;

  img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
  }

  ul {
    position: relative;
    display: flex;
    height: 100%;
  }

  li {
    display: flex;
    align-content: center;
    justify-content: center;

    margin: 0;
    height: 100%;
    aspect-ratio: 4/5;
    overflow: hidden;
  }

  .controll_next,
  .controll_prev {
    background-color: rgba(0, 0, 0, 0);
    z-index: 2;
    position: absolute;
    height: auto;
    width: clamp(3rem, 4%, 7rem);
    top: 50%;
    transform: translateY(-50%);
    transition: scale 0.3s ease-in-out;

    img {
      filter: drop-shadow(var(--shadow));
    }

    &:hover {
      scale: 110%;
    }
  }

  .controll_next {
    left: 2%;
  }

  .controll_prev {
    right: 2%;

    img {
      transform: scaleX(-1);
    }
  }
}

#project_description a {
  text-decoration: underline solid;
  color: var(--zblau);
}

#project_description {
  z-index: 3;
  height: 100%;
  width: auto;
  max-width: 40vw;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: min-content;
  overflow-y: auto;
  overscroll-behavior: contain;
  gap: 2rem;

  h3 {
    margin: 0 0 0.5rem;
  }
}

#description_header,
#description_left,
#description_right {
  grid-area: auto;
  height: fit-content;
}

#description_right {
  h3:last-of-type {
    margin-top: 1rem;
  }

  ul:first-of-type li {
    list-style: url(/images/SVG/listDot_blue.svg) outside;
  }

  ul:last-of-type {
    display: grid;
    grid-template-columns: 3rem auto;
    grid-auto-flow: row;
    grid-column-gap: 1.5rem;

    li {
      display: grid;
      grid-column: 1 / -1;
      grid-template-columns: subgrid;
      align-items: center;

      &:last-of-type {
        margin-bottom: var(--padding_small);
      }

      img {
        justify-self: flex-end;
        height: 2.5rem;
      }

      div {
        display: flex;
        flex-direction: column;

        span:last-of-type {
          opacity: 0.7;
          line-height: 1.2rem;
          font-size: 0.8em;
        }
      }
    }
  }
}

#toggle_description {
  z-index: 4;
  display: none;
}

/* ==========================================================================
   8. Fußzeile
   ========================================================================== */

footer {
  z-index: 1;
  position: relative;
  background-color: var(--zblau);
  font-size: 1rem;
  padding: 5rem 0 2rem;
  display: flex;
  justify-content: center;
  color: var(--white);
  width: 100%;

  img {
    height: 100%;
    width: auto;
  }

  a:has(img) {
    z-index: 1;
    height: 60%;
    position: absolute;
    left: var(--page_gutter);
  }

  /* The address in the heading keeps the heading's size and weight */
  h4 .link {
    font-size: inherit;
    font-weight: inherit;
  }

  .sitelock {
    position: static;
    height: auto;

    img {
      height: 3rem;
      width: auto;
    }
  }

  div {
    z-index: 1;
    color: var(--white);
    gap: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;

    div {
      display: flex;
      flex-direction: row;
    }

    p {
      text-align: center;
    }
  }

  .border_footer {
    position: absolute;
    background-color: var(--zblau);
    width: 100% !important;
    height: 100%;
    top: 0;
    left: 0;
    filter: drop-shadow(var(--shadow));
    -webkit-filter: drop-shadow(var(--shadow));

    &::after,
    & > .magnetic_edge {
      background-image: url("../images/SVG/border/footer.svg");
      background-size: contain;
      background-repeat: repeat-x;
      z-index: -1;

      content: "";
      position: absolute;
      left: 0;
      width: 100%;
      min-width: 100rem;
      height: var(--edge_height);
      overflow: hidden;
      display: flex;
      top: calc(-1 * var(--edge_height));
    }
  }
}

/* ==========================================================================
   9. Responsive
   Desktop zuerst: von breit nach schmal. 1200px steht auch fest in
   javascript/popup.js (MOBILE_LAYOUT); beide Werte gleich halten.
   ========================================================================== */

@media (min-width: 1201px) {
  #project_popup_content > div:first-of-type {
    flex: none;
    width: var(--popup_slide_w);
  }
}

@media (max-width: 1440px) {
  #about {
    > div:last-child {
      grid-template-columns: minmax(0, 1fr);

      > div {
        padding: 0 !important;
      }

      > div:last-child {
        max-width: 45rem;
      }
    }

    .info {
      z-index: 10;
    }
  }

  #project_description {
    gap: 0;
    grid-template-columns: 1fr;
  }

  #description_right h3 {
    margin-top: 1rem;
  }
}

@media (max-width: 1200px) {
  #start {
    display: flex;
    justify-content: center;
    align-items: flex-end;

    h1 {
      filter: drop-shadow(var(--shadow));

      > span:first-of-type {
        font-size: clamp(2rem, 10vw, 4rem);
        display: flex;
        flex-direction: column;
        text-align: center;
      }

      color: var(--white) !important;
    }

    span {
      color: var(--white) !important;
    }

    > .hero_text {
      align-items: center;
      align-self: flex-end;
      margin-bottom: 15vh;
    }

    .hero_actions {
      justify-content: center;
    }

    > img {
      position: absolute !important;
      left: 50%;
      transform: translate(-50%, -100%) !important;
    }
  }

  #project_popup_window {
    width: 100%;
  }

  #project_popup_content {
    overflow: hidden;
    grid-template-columns: 1fr;

    > div:first-of-type {
      max-width: 100%;
    }
  }

  #project_description {
    gap: 2rem;
    grid-template-columns: 1fr 1fr;
    background-color: white;
    left: 0;

    position: absolute;
    width: 100%;
    max-width: none;
    bottom: 0;
    transition: height 0.3s ease-in-out;
  }

  #toggle_description {
    display: block;
  }

  #footer > a:not(.sitelock) img {
    display: none;
  }
}

@media (max-width: 1000px) {
  :root {
    --nav_height: 3rem;
  }

  .hideOnMobile {
    display: none;
  }

  #projects > div {
    grid-template-columns: repeat(2, 1fr);
  }

  .hamburgerWrapper {
    display: block;

    button {
      transition: var(--transitionTime);
      margin: 2rem;
    }

    div button {
      margin: 1rem;
    }
  }

  .mobileLogo {
    display: block;
    position: absolute;
    top: 2rem;
    left: var(--page_gutter);
    height: 2rem;
    z-index: 1000;

    img {
      filter: drop-shadow(var(--shadow));
    }
  }

  #contact #contact-form {
    grid-template-columns: minmax(0, 1fr);
  }

  #contact form {
    padding-top: 3rem;
    border-top: 0.3rem solid var(--grey);
  }
}

@media (max-width: 900px) {
  #project_popup_window {
    width: fit-content;
  }

  #project_popup_content {
    width: fit-content;
    max-width: 100%;
    max-height: 100%;
  }

  #project_description {
    gap: 0;
    grid-template-columns: 1fr;
  }

  #description_left {
    padding: 0;
  }
}

@media (max-width: 700px) {
  .hamburgerMenu {
    width: 100vw;
  }

  #start h1 > span:last-of-type {
    flex-wrap: wrap;
    justify-content: center;
    column-gap: 0.4em;
    width: 0;
    min-width: 100%;

    > span:nth-child(4) {
      display: none;
    }

    > span:last-child {
      flex-basis: 100%;
      text-align: center;
    }
  }

  #about {
    > div:where(:last-child) > div > div {
      grid-column: span 4;
    }
  }

  #projects > div {
    grid-template-columns: 1fr;
  }

  #contact {
    width: 100%;
  }

  #contact-form {
    width: 100%;
    min-width: 0;
  }

  #contact form {
    width: 100%;
    max-width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #contact form > * {
    min-width: 0;
  }

  .contact_submit {
    align-items: stretch;

    .button_secondary {
      width: 100%;
    }
  }

  form {
    width: 100%;

    > * {
      grid-column: 1/3;
    }
  }

  #project_description {
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: 4 / 5;
  }
}

/* ==========================================================================
   10. Hover & reduzierte Bewegung
   ========================================================================== */

@media (hover: hover) {
  .project_tile:hover {
    scale: 110%;
  }

  .link:hover {
    text-decoration-thickness: 0.15em;
  }

  #contact a:hover {
    color: var(--xrot_dunkel);
  }

  .hamburgerWrapper button:hover {
    filter: drop-shadow(var(--shadow));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  html {
    scroll-behavior: auto;
  }

  .button_primary::after,
  .button_secondary::after,
  .button_tertiary::after,
  .project_tile,
  #project_popup,
  #project_description,
  #slider .controll_next,
  #slider .controll_prev,
  .hamburgerWrapper button {
    transition: none;
  }
}