/*###############################
###
###     styles.css
###     GROWTH. — A Living World
###     BASED ON: HTML5, CSS3, JavaScript
###     AUTHOR: Benjamin Bennewitz
###
###
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###       ██╔══██╗ █▄
###       ██████╦╝
###       ██╔══██╗
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###       ╚═════╝
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#################################*/

/* ===========================================================================
   INHALTSVERZEICHNIS

   01   Lokale Schriftarten
   02   Basis, Reset & Fokuszustände
   03   Skip Link
   04   Szenenfläche, Vignette & Textur
   05   Kopfzeile & Branding
   06   Höhenmesser – Grundgestaltung
   07   Kapitel-Navigation
   08   Kapitel & Typografie
   09   Wurzel-Kapitel & Footer
   10   Orientierungshinweis
   11   Ladebildschirm
   12   Responsive Grundlayouts
   13   Reduzierte Bewegung – Basis
   14   Kapitelkontrast & geschützte HUD-Abstände
   15   Typografie, Navigation & Footer-Verfeinerungen
   16   Offene Editorial-Typografie & lokale Kontrastflächen
   17   Kompakte Höhenanzeige & Kapitelabstände
   18   Arten-Schaltflächen & Dialoggestaltung
   19   Höhenmesser in der Kopfzeile
   20   Debug-Panel & Autorenwerkzeuge
   21   Discovery-Marker & Pulsanimation
   22   Discovery-Popover & Verbindungslinie
   ========================================================================== */


/* ==========================================================================
   01   Lokale Schriftarten
   ========================================================================== */

@font-face {
  font-family: 'Growth Display';
  src: url('/assets/fonts/studies/BarlowCondensed-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Display';
  src: url('/assets/fonts/studies/BarlowCondensed-ExtraBold.ttf') format('truetype');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Display';
  src: url('/assets/fonts/studies/BarlowCondensed-Black.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Sans';
  src: url('/assets/fonts/studies/DMSans-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Sans';
  src: url('/assets/fonts/studies/DMSans-Medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Sans';
  src: url('/assets/fonts/studies/DMSans-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Sans';
  src: url('/assets/fonts/studies/DMSans-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Mono';
  src: url('/assets/fonts/studies/DMMono-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Growth Mono';
  src: url('/assets/fonts/studies/DMMono-Medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ==========================================================================
   02   Basis, Reset & Fokuszustände
   ========================================================================== */


:root {
  font-family: 'Growth Sans', 'Segoe UI', Arial, sans-serif;
  color: #edf3db;
  background: #09140e;
  font-synthesis: none;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-color: #789867 #101b13;
}

body {
  margin: 0;
  overflow-x: hidden;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

a {
  color: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid #e0fa79;
  outline-offset: 5px;
}

/* ==========================================================================
   03   Skip Link
   ========================================================================== */


.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  padding: 12px 18px;
  background: #e7edc6;
  color: #0d2112;
  z-index: 1000;
}

.skip-link:focus {
  top: 15px;
}

/* ==========================================================================
   04   Szenenfläche, Vignette & Textur
   ========================================================================== */


#scene,
.vignette,
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

#scene {
  z-index: -3;
  background: radial-gradient(ellipse at 52% 40%, #344f32, #08130e 78%);
}

#scene canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.vignette {
  z-index: -2;
  background: radial-gradient(ellipse at center, transparent 32%, rgba(3, 12, 6, 0.61) 100%);
}

.grain {
  z-index: -1;
  opacity: 0.09;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

/* ==========================================================================
   05   Kopfzeile & Branding
   ========================================================================== */


.hud {
  position: fixed;
  z-index: 12;
  top: 0;
  left: 0;
  right: 0;
  height: 90px;
  padding: 25px clamp(22px, 5vw, 84px);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  pointer-events: none;
}

.hud>* {
  pointer-events: auto;
}

.brand {
  font-family: 'Growth Display', Impact, 'Arial Narrow', sans-serif;
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 1;
  text-decoration: none;
}

.brand-symbol {
  color: #b5dc83;
  font-size: 26px;
  margin-right: 8px;
}

.brand-dot,
.period {
  color: #b6db75;
}

.hud-center,
.hud-button,
.eyebrow,
.chapter-meta,
.altimeter,
.chapter-nav,
.footer-kicker,
.footer-topline,
.footer-bottom,
.orientation,
.loading small {
  font-family: 'Growth Mono', Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
}

.hud-center {
  padding-top: 12px;
  color: #9aad91;
}

.hud-button {
  border: 0;
  background: transparent;
  color: #aabd9c;
  padding: 11px 0;
}

.hud-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.mute-mark {
  padding-left: 15px;
}

/* ==========================================================================
   06   Höhenmesser – Grundgestaltung
   ========================================================================== */


.altimeter {
  position: fixed;
  z-index: 11;
  left: clamp(20px, 5vw, 84px);
  top: 50%;
  transform: translateY(-42%);
  display: grid;
  grid-template-columns: 1fr 1px;
  column-gap: 14px;
  align-items: start;
  color: #d2dec5;
}

.altimeter-label {
  grid-column: 1;
  font-size: 9px;
  color: #b3c4a5;
}

.altimeter-value {
  grid-column: 1;
  white-space: nowrap;
  font-size: 27px;
  font-weight: 500;
  letter-spacing: -0.08em;
  margin-top: 6px;
}

.altimeter-value small {
  font-size: 12px;
  letter-spacing: 0;
  margin-left: 4px;
}

.altimeter-track {
  grid-column: 2;
  grid-row: 1/5;
  height: 210px;
  width: 1px;
  background: #a3b4a358;
  position: relative;
}

.altimeter-track:before {
  content: '';
  position: absolute;
  left: -3px;
  top: 0;
  width: 7px;
  height: 1px;
  background: #cadac1;
}

.altimeter-track:after {
  content: '';
  position: absolute;
  left: -3px;
  bottom: 0;
  width: 7px;
  height: 1px;
  background: #cadac1;
}

#altimeter-fill {
  position: absolute;
  bottom: 0;
  left: -1px;
  width: 3px;
  height: 0;
  background: #bce987;
  transition: height 0.15s linear;
}

.altimeter-bottom,
.altimeter-top {
  color: #91a38a;
  font-size: 8px;
  grid-column: 1;
}

.altimeter-top {
  grid-row: 3;
}

.altimeter-bottom {
  grid-row: 4;
  align-self: end;
}

/* ==========================================================================
   07   Kapitel-Navigation
   ========================================================================== */


.chapter-nav {
  position: fixed;
  z-index: 11;
  right: clamp(22px, 5vw, 84px);
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  gap: 12px;
}

.chapter-nav a {
  width: 12px;
  height: 12px;
  border: 1px solid #d7efb77a;
  border-radius: 50%;
  display: block;
  position: relative;
  transition:
    background 0.2s,
    transform 0.2s;
}

.chapter-nav a:hover,
.chapter-nav a.active {
  background: #d1ef9c;
  transform: scale(1.2);
}

.chapter-nav a:hover:before {
  content: attr(data-name);
  position: absolute;
  right: 24px;
  top: 0;
  white-space: nowrap;
  color: #e6f5d0;
  font-size: 10px;
}

/* ==========================================================================
   08   Kapitel & Typografie
   ========================================================================== */


.chapter {
  min-height: 100svh;
  position: relative;
  display: flex;
  align-items: center;
  padding: 150px clamp(26px, 14vw, 230px) 100px;
  isolation: isolate;
}

.chapter-content {
  max-width: 760px;
  opacity: 0.3;
  transform: translateY(34px);
  transition:
    opacity 0.7s,
    transform 0.7s;
}

.chapter.is-active .chapter-content {
  opacity: 1;
  transform: translateY(0);
}

.chapter-content--right {
  margin-left: auto;
}

.eyebrow {
  color: #b8de84;
  display: block;
  margin-bottom: 28px;
  font-weight: 500;
}

.chapter h2,
.footer h1 {
  font-family: 'Growth Display', Impact, 'Arial Narrow', sans-serif;
  font-weight: 900;
  line-height: 0.83;
  letter-spacing: -0.055em;
  margin: 0;
  text-transform: uppercase;
}

.chapter h2 {
  font-size: clamp(74px, 10.7vw, 190px);
  text-shadow: 0 5px 30px #07120c70;
}

.chapter h2 em,
.footer em {
  font-weight: 500;
  color: #c2dd99;
  font-style: normal;
}

.chapter p {
  font-size: clamp(16px, 1.45vw, 21px);
  line-height: 1.55;
  max-width: 460px;
  margin: 40px 0 27px;
  text-wrap: pretty;
  color: #e0e9d3;
}

.chapter-meta {
  font-size: 10px;
  color: #b6cc99;
}

/* ==========================================================================
   09   Wurzel-Kapitel & Footer
   ========================================================================== */


.footer {
  min-height: 100svh;
  padding: 120px clamp(26px, 7vw, 110px) 35px;
  align-items: stretch;
  background: linear-gradient(180deg, transparent 0%, #0b140bdd 42%, #080e0bef 100%);
}

.footer-inner {
  display: flex;
  width: 100%;
  flex-direction: column;
  justify-content: space-between;
}

.footer-topline,
.footer-bottom {
  display: flex;
  gap: 15px;
  justify-content: space-between;
  color: #a7b397;
}

.footer-topline {
  border-top: 1px solid #a1b59665;
  padding-top: 15px;
}

.footer-kicker {
  color: #d5e5b2;
  margin-top: auto;
}

.footer h1 {
  font-size: clamp(118px, 22vw, 380px);
  margin: -5px 0 14px;
}

.footer-copy {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 30px;
  max-width: 1000px;
}

.footer-copy p {
  font-family: 'Growth Display', Impact, 'Arial Narrow', sans-serif;
  font-size: clamp(28px, 4vw, 59px);
  line-height: 0.99;
  font-weight: 800;
  margin: 0;
}

.footer-description {
  max-width: 300px;
  font-size: 15px;
  line-height: 1.55;
  color: #bfccba;
}

.begin-button {
  margin: 30px 0 48px;
  width: min(100%, 420px);
  min-height: 72px;
  border: 1px solid #d0e0b6;
  background: #cae5a1;
  color: #122217;
  padding: 20px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: 'Growth Mono', Consolas, monospace;
  font-size: 13px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition:
    background 0.2s,
    transform 0.2s;
}

.begin-button:hover {
  background: #efffd4;
  transform: translateY(-3px);
}

.begin-button span:last-child {
  font-size: 27px;
}

.footer-bottom {
  border-top: 1px solid #98a78c65;
  padding-top: 20px;
}

.footer-bottom a {
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   10   Orientierungshinweis
   ========================================================================== */


.orientation {
  position: fixed;
  z-index: 11;
  bottom: 27px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  color: #d9e8c4;
  font-size: 9px;
  white-space: nowrap;
  transition: opacity 0.4s;
}

.orientation-line {
  height: 1px;
  width: 28px;
  background: #d9e8c4;
}

.orientation span:last-child {
  font-size: 20px;
}

/* ==========================================================================
   11   Ladebildschirm
   ========================================================================== */


.loading {
  position: fixed;
  z-index: 40;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #0b1810;
  transition:
    opacity 0.75s,
    visibility 0.75s;
  gap: 15px;
}

.loading>span {
  font-family: 'Growth Display', Impact, 'Arial Narrow', sans-serif;
  font-size: clamp(90px, 20vw, 260px);
  font-weight: 900;
  line-height: 0.8;
  letter-spacing: -0.06em;
}

.loading small {
  color: #b3c4ab;
}

.loading.is-hidden {
  opacity: 0;
  visibility: hidden;
}

/* ==========================================================================
   12   Responsive Grundlayouts
   ========================================================================== */


@media (max-width: 800px) {
  .hud {
    height: 65px;
    padding: 20px;
  }

  .brand {
    font-size: 26px;
  }

  .hud-center {
    display: none;
  }

  .altimeter {
    top: auto;
    bottom: 80px;
    left: 20px;
    transform: none;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .altimeter-track,
  .altimeter-label,
  .altimeter-top,
  .altimeter-bottom {
    display: none;
  }

  .altimeter-value {
    font-size: 19px;
  }

  .chapter-nav {
    right: 17px;
    gap: 10px;
  }

  .chapter-nav a {
    width: 9px;
    height: 9px;
  }

  .chapter {
    padding: 110px 65px 105px 26px;
    align-items: center;
  }

  .chapter-content--right {
    margin-left: 0;
  }

  .chapter h2 {
    font-size: clamp(65px, 14vw, 130px);
  }

  .chapter p {
    font-size: 16px;
    margin-top: 24px;
    max-width: 350px;
  }

  .footer {
    padding: 100px 26px 20px;
  }

  .footer-topline span:nth-child(2),
  .footer-bottom span:nth-child(2) {
    display: none;
  }

  .footer h1 {
    font-size: clamp(92px, 23vw, 230px);
  }

  .footer-copy {
    display: block;
  }

  .footer-description {
    margin-top: 15px;
  }

  .footer-bottom {
    font-size: 8px;
  }

  .orientation {
    left: auto;
    right: 18px;
    bottom: 29px;
    transform: none;
    font-size: 8px;
  }
}

/* ==========================================================================
   13   Reduzierte Bewegung – Basis
   ========================================================================== */


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

  .chapter-content,
  .begin-button,
  .loading {
    transition: none !important;
  }

  .grain {
    display: none;
  }
}

/* ==========================================================================
   14   Kapitelkontrast & geschützte HUD-Abstände
   ========================================================================== */

.chapter {
  padding-left: clamp(110px, 14vw, 230px);
  padding-right: clamp(85px, 12vw, 210px);
}

.chapter-content {
  position: relative;
  isolation: isolate;
  width: fit-content;
  max-width: min(760px, 100%);
  padding: clamp(20px, 3vw, 38px);
  border-left: 1px solid rgba(188, 233, 135, 0.45);
  background: linear-gradient(90deg,
      rgba(6, 21, 13, 0.89) 0%,
      rgba(6, 21, 13, 0.78) 72%,
      rgba(6, 21, 13, 0.56) 100%);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.chapter h2 {
  font-size: clamp(65px, 8vw, 145px);
  overflow-wrap: normal;
  word-break: normal;
  text-wrap: balance;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.3);
}

.chapter p {
  margin-top: 26px;
  color: #f0f6e6;
}

.chapter-meta,
.eyebrow {
  color: #d1efaa;
}

.chapter--sky .chapter-content {
  background: linear-gradient(90deg, rgba(9, 27, 20, 0.93), rgba(9, 27, 20, 0.73));
}

.hud {
  background: linear-gradient(180deg, rgba(5, 17, 11, 0.78), transparent);
}

.altimeter,
.chapter-nav {
  filter: drop-shadow(0 1px 5px rgba(0, 0, 0, 0.6));
}

@media (max-width: 1000px) {
  .chapter {
    padding-left: 100px;
    padding-right: 62px;
  }

  .chapter h2 {
    font-size: clamp(54px, 9vw, 100px);
  }
}

@media (max-width: 800px) {
  .chapter {
    padding: 100px 48px 105px 18px;
  }

  .chapter-content {
    padding: 20px 18px;
    max-width: 100%;
    border-left-width: 2px;
  }

  .chapter h2 {
    font-size: clamp(46px, 11.4vw, 83px);
    letter-spacing: -0.045em;
  }

  .chapter p {
    font-size: 15px;
    line-height: 1.55;
    margin-top: 20px;
  }

  .chapter-nav {
    right: 13px;
  }

  .altimeter {
    bottom: 60px;
    left: 18px;
    padding: 5px 8px;
    background: rgba(8, 24, 15, 0.77);
  }

  .hud {
    padding: 17px 20px;
  }

  .footer {
    padding: 100px 26px 20px;
  }

  .footer h1 {
    font-size: clamp(86px, 21vw, 200px);
  }
}

@media (max-width: 390px) {
  .chapter h2 {
    font-size: clamp(42px, 10.8vw, 58px);
  }

  .chapter-content {
    padding: 16px 12px;
  }

  .chapter {
    padding-right: 36px;
  }

  .chapter-nav {
    right: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chapter-content {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ==========================================================================
   15   Typografie, Navigation & Footer-Verfeinerungen
   ========================================================================== */

.chapter h2,
.footer h1,
.footer-copy p,
.brand,
.loading>span {
  letter-spacing: 0.005em;
  line-height: 0.95;
  font-kerning: normal;
}

.chapter h2 {
  font-size: clamp(64px, 7.1vw, 126px);
  text-wrap: initial;
}

.chapter h2 em {
  letter-spacing: 0.01em;
}

.chapter-content {
  max-width: min(720px, 100%);
  background: linear-gradient(90deg,
      rgba(5, 19, 12, 0.94),
      rgba(5, 19, 12, 0.83) 80%,
      rgba(5, 19, 12, 0.67));
  box-shadow: 0 14px 60px rgba(0, 0, 0, 0.26);
}

.chapter--sky .chapter-content {
  background: linear-gradient(90deg, rgba(5, 20, 16, 0.94), rgba(5, 20, 16, 0.84));
}

.chapter p {
  color: #f6f9ee;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

.eyebrow,
.chapter-meta {
  color: #d9f1b7;
  text-shadow: 0 1px 4px #08150c;
}

.chapter-nav {
  padding: 13px 11px;
  background: rgba(6, 21, 13, 0.7);
  border: 1px solid rgba(201, 234, 161, 0.22);
  border-radius: 100px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.chapter-nav a {
  width: 13px;
  height: 13px;
  border: 1.5px solid #d5eab8;
}

.chapter-nav a.active {
  background: #d7f7a0;
  box-shadow: 0 0 0 3px #0b1c15;
}

.chapter-nav a:hover:before,
.chapter-nav a:focus-visible:before {
  content: attr(data-name);
  position: absolute;
  right: 28px;
  top: -5px;
  padding: 5px 7px;
  background: #071910;
  color: #fff;
  font-size: 10px;
}

.altimeter {
  padding: 13px 14px;
  background: rgba(7, 23, 14, 0.78);
  border: 1px solid rgba(198, 231, 166, 0.17);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.altimeter-value {
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.footer {
  padding: 110px clamp(116px, 9vw, 175px) 70px;
  background: linear-gradient(180deg, rgba(5, 14, 9, 0.58), rgba(5, 14, 9, 0.94) 72%, #070e09 100%);
}

.footer-inner {
  justify-content: center;
  gap: clamp(18px, 3vh, 34px);
  min-height: calc(100svh - 180px);
}

.footer-topline {
  flex-shrink: 0;
}

.footer-kicker {
  margin-top: 0;
}

.footer h1 {
  font-size: clamp(95px, 17vw, 270px);
  margin: 0;
  max-width: 100%;
  white-space: nowrap;
}

.footer-copy {
  align-items: start;
  max-width: 100%;
  gap: 36px;
}

.footer-copy p {
  font-size: clamp(28px, 3vw, 47px);
}

.footer-description {
  max-width: 330px;
  color: #e4edda;
}

.begin-button {
  margin: 4px 0 0;
  min-height: 60px;
  max-width: 380px;
}

.footer-bottom {
  margin-top: auto;
  flex-wrap: wrap;
  row-gap: 9px;
}

.orientation {
  bottom: 8px;
  z-index: 10;
  opacity: 0.85;
}

body:has(.footer.is-active) .orientation {
  opacity: 0 !important;
  pointer-events: none;
}

body:has(.footer.is-active) .altimeter {
  top: 47%;
  opacity: 0.85;
}

body:has(.footer.is-active) .hud {
  background: linear-gradient(180deg, rgba(5, 17, 11, 0.9), transparent);
}

@media (max-width: 1200px) {
  .chapter h2 {
    font-size: clamp(58px, 7.4vw, 106px);
  }

  .footer {
    padding-inline: 110px;
  }

  .footer h1 {
    font-size: clamp(90px, 16.5vw, 210px);
  }
}

@media (max-width: 800px) {
  .chapter {
    padding: 100px 53px 95px 20px;
  }

  .chapter-content {
    padding: 19px 17px;
  }

  .chapter h2 {
    font-size: clamp(44px, 10.3vw, 79px);
    letter-spacing: 0;
    line-height: 1;
  }

  .chapter p {
    font-size: 15px;
  }

  .chapter-nav {
    right: 7px;
    padding: 10px 8px;
    gap: 13px;
  }

  .chapter-nav a {
    width: 11px;
    height: 11px;
  }

  .altimeter {
    top: auto;
    bottom: 62px;
    padding: 5px 9px;
  }

  body:has(.footer.is-active) .altimeter {
    top: auto;
    bottom: 62px;
  }

  .footer {
    padding: 91px 30px 32px;
  }

  .footer-inner {
    min-height: calc(100svh - 123px);
    gap: 19px;
  }

  .footer h1 {
    font-size: clamp(75px, 18.5vw, 148px);
  }

  .footer-copy {
    display: block;
  }

  .footer-description {
    max-width: 400px;
    font-size: 14px;
  }

  .footer-copy p {
    font-size: clamp(26px, 6.5vw, 43px);
  }

  .begin-button {
    min-height: 60px;
    width: min(100%, 340px);
  }

  .footer-bottom {
    font-size: 8px;
    margin-top: 12px;
  }

  .orientation {
    display: none;
  }
}

@media (max-width: 440px) {
  .chapter h2 {
    font-size: clamp(42px, 10vw, 59px);
  }

  .footer {
    padding-inline: 20px;
  }

  .footer h1 {
    font-size: 19.5vw;
  }

  .footer-copy p {
    font-size: 6.7vw;
  }

  .footer-bottom {
    gap: 14px;
  }
}

/* ==========================================================================
   16   Offene Editorial-Typografie & lokale Kontrastflächen
   ========================================================================== */

.chapter-content,
.chapter--sky .chapter-content {
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.chapter-content::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: -7% -10%;
  pointer-events: none;
  background: radial-gradient(ellipse at 36% 55%,
      rgba(5, 18, 12, 0.42) 0%,
      rgba(5, 18, 12, 0.22) 46%,
      transparent 75%);
}

.chapter--sky .chapter-content::before {
  background: radial-gradient(ellipse at 35% 55%,
      rgba(9, 24, 20, 0.43),
      rgba(9, 24, 20, 0.17) 47%,
      transparent 76%);
}

.chapter h2 {
  text-shadow:
    0 2px 3px rgba(2, 13, 7, 0.54),
    0 6px 28px rgba(2, 13, 7, 0.43);
}

.chapter h2 em {
  text-shadow:
    0 2px 4px rgba(2, 13, 7, 0.6),
    0 5px 20px rgba(2, 13, 7, 0.45);
}

.chapter p {
  color: #f6f9ed;
  text-shadow:
    0 1px 2px rgba(2, 12, 7, 0.95),
    0 2px 9px rgba(2, 12, 7, 0.85),
    0 3px 22px rgba(2, 12, 7, 0.56);
}

.eyebrow,
.chapter-meta {
  color: #dcf4b9;
  text-shadow:
    0 1px 2px rgba(0, 12, 6, 0.95),
    0 2px 11px rgba(0, 12, 6, 0.8);
}

@media (max-width: 800px) {

  .chapter-content,
  .chapter--sky .chapter-content {
    padding: 0;
  }

  .chapter-content::before {
    inset: -9% -8%;
  }
}

/* ==========================================================================
   17   Kompakte Höhenanzeige & Kapitelabstände
   ========================================================================== */

.altimeter {
  left: clamp(16px, 2.4vw, 38px);
  top: auto;
  bottom: clamp(60px, 9vh, 100px);
  transform: none;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 10px;
  border: 0;
  border-left: 2px solid #bce987;
  background: rgba(7, 23, 14, 0.34);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.altimeter-label {
  font-size: 8px;
}

.altimeter-value {
  font-size: 18px;
  margin: 0;
}

.altimeter-value small {
  font-size: 10px;
}

.altimeter-track,
.altimeter-bottom,
.altimeter-top {
  display: none;
}

body:has(.footer.is-active) .altimeter {
  opacity: 0;
  pointer-events: none;
}

.chapter--ground .chapter-content {
  max-width: 680px;
}

@media (max-width: 800px) {
  .altimeter {
    bottom: 19px;
    left: 16px;
    padding: 4px 7px;
  }

  .chapter--ground .chapter-content {
    margin-left: 0;
  }
}


/* ==========================================================================
   18   Arten-Schaltflächen & Dialoggestaltung
   ========================================================================== */

.species-trigger {
  display: inline-flex;
  gap: 1.25rem;
  align-items: center;
  cursor: pointer;
  background: rgba(12, 30, 18, 0.67);
  border: 1px solid rgba(204, 238, 156, 0.67);
  border-radius: 2px;
  color: #e9f5d0;
  padding: 13px 17px;
  font:
    500 11px 'Growth Mono',
    Consolas,
    monospace;
  letter-spacing: 0.09em;
  transition:
    background 0.2s,
    border-color 0.2s,
    transform 0.2s;
}

.species-trigger:hover {
  background: #294932;
  border-color: #dcf5b7;
  transform: translateY(-2px);
}

.species-dialog {
  width: min(540px, calc(100% - 32px));
  max-height: min(80dvh, 720px);
  overflow: auto;
  color: #ecf6dc;
  background: #122219;
  border: 1px solid #789966;
  border-radius: 3px;
  padding: clamp(25px, 5vw, 44px);
  box-shadow: 0 30px 100px #010905b9;
}

.species-dialog::backdrop {
  background: rgba(2, 10, 6, 0.75);
  backdrop-filter: blur(5px);
}

.species-dialog h2 {
  font:
    800 clamp(34px, 6vw, 58px)/0.95 'Growth Display',
    Impact,
    'Arial Narrow',
    sans-serif;
  letter-spacing: 0.015em;
  margin: 14px 35px 25px 0;
}

.species-dialog p {
  font-size: 16px;
  line-height: 1.65;
  color: #e1ead8;
}

.species-dialog .species-label,
.species-dialog .species-source {
  font:
    500 10px/1.6 'Growth Mono',
    Consolas,
    monospace;
  letter-spacing: 0.09em;
  color: #b6d790;
}

.species-dialog .species-source {
  margin-top: 30px;
  border-top: 1px solid #68845b;
  padding-top: 18px;
}

.species-close {
  position: absolute;
  right: 17px;
  top: 12px;
  color: #e8f6d8;
  background: transparent;
  border: 0;
  font-size: 32px;
  cursor: pointer;
  padding: 8px 14px;
}

/* ==========================================================================
   19   Höhenmesser in der Kopfzeile
   ========================================================================== */

.hud-brand-group {
  display: flex;
  align-items: center;
  gap: clamp(13px, 2.2vw, 32px);
}

.hud-brand-group .altimeter {
  position: static;
  top: auto;
  left: auto;
  bottom: auto;
  transform: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 2px 0 2px 12px;
  margin: 0;
  background: transparent;
  border: 0;
  border-left: 1px solid rgba(188, 233, 135, 0.6);
  opacity: 1;
  pointer-events: auto;
  filter: none;
  white-space: nowrap;
}

.hud-brand-group .altimeter-label {
  font-size: 8px;
  color: #bbd6a3;
}

.hud-brand-group .altimeter-value {
  font-size: 15px;
  line-height: 1.1;
  margin: 0;
}

.hud-brand-group .altimeter-value small {
  font-size: 9px;
}

.hud-brand-group .altimeter-track,
.hud-brand-group .altimeter-bottom,
.hud-brand-group .altimeter-top {
  display: none;
}

body:has(.footer.is-active) .hud-brand-group .altimeter {
  opacity: 1;
  top: auto;
  bottom: auto;
  left: auto;
}

@media (max-width: 800px) {
  .hud-brand-group {
    gap: 10px;
  }

  .hud-brand-group .altimeter {
    padding-left: 9px;
    gap: 5px;
  }

  .hud-brand-group .altimeter-value {
    font-size: 12px;
  }

  .hud-brand-group .altimeter-label {
    font-size: 7px;
  }
}

@media (max-width: 430px) {
  .hud-brand-group .altimeter-label {
    display: none;
  }

  .hud-brand-group .altimeter-value {
    font-size: 11px;
  }
}

/* ==========================================================================
   20   Debug-Panel & Autorenwerkzeuge
   ========================================================================== */

.growth-debug {
  position: fixed;
  z-index: 100000;
  right: 20px;
  bottom: 16px;
  width: min(330px, calc(100vw - 40px));
  max-height: 80dvh;
  overflow: auto;
  background: #09170f;
  color: #eff9e0;
  border: 1px solid #819b6a;
  border-radius: 8px;
  box-shadow: 0 15px 40px #0009;
  font: 12px/1.5 monospace;
}

.growth-debug summary {
  cursor: pointer;
  padding: 12px;
  font-weight: 700;
}

.growth-debug-content {
  padding: 0 12px 12px;
}

.growth-debug p {
  margin: 0 0 8px;
  font-size: 11px;
}

.growth-debug-layers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 9px;
  margin-bottom: 12px;
}

.growth-debug-layers label {
  cursor: pointer;
  white-space: nowrap;
  font-size: 10px;
}

.growth-debug textarea {
  width: 100%;
  height: 150px;
  resize: vertical;
  background: #132d1b;
  border: 1px solid #526d49;
  color: #fff;
  padding: 8px;
  font: 11px/1.4 monospace;
}

.growth-debug-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 9px;
}

.growth-debug button {
  cursor: pointer;
  border: 1px solid #789765;
  color: #eaf9d4;
  background: #1c3b27;
  padding: 6px 9px;
  border-radius: 3px;
  font: 11px monospace;
}

.growth-debug :focus-visible {
  outline: 2px solid #c5ea8e;
  outline-offset: 2px;
}

/* ==========================================================================
   21   Discovery-Marker & Pulsanimation
   ========================================================================== */

.discovery-hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font:
    500 10px/1.5 'DM Mono',
    monospace;
  color: #dceec6;
  letter-spacing: 0.08em;
  margin-top: 20px;
}

.discovery-markers {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 45;
}

.discovery-point {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  pointer-events: auto;
  cursor: pointer;
  border: 0;
  background: transparent;
  padding: 0;
}

.discovery-point[hidden] {
  display: none;
}

.discovery-point::before {
  content: '';
  position: absolute;
  width: 31px;
  height: 31px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  animation: discovery-pulse 2.2s ease-out infinite;
}

.discovery-point::after {
  content: '';
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(210, 244, 181, 0.55);
  border-radius: 50%;
  opacity: 0.85;
}

.discovery-point>span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.85);
}

.discovery-point:focus-visible {
  outline: 2px solid white;
  outline-offset: 3px;
  border-radius: 50%;
}

@keyframes discovery-pulse {
  0% {
    transform: scale(0.52);
    opacity: 0.85;
  }

  75%,
  100% {
    transform: scale(1.35);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .discovery-point::before {
    animation: none;
  }
}

/* ==========================================================================
   22   Discovery-Popover & Verbindungslinie
   ========================================================================== */


.discovery-popover {
  position: fixed;
  z-index: 51;
  width: min(330px, calc(100vw - 24px));
  padding: 18px 20px 18px;
  background: linear-gradient(180deg, rgba(233, 242, 223, 0.96), rgba(214, 229, 201, 0.96));
  color: #173121;
  border: 1px solid rgba(210, 228, 190, 0.95);
  box-shadow:
    0 14px 42px rgba(0, 0, 0, 0.28),
    inset 0 0 0 1px rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(9px);
  border-radius: 6px;
  pointer-events: auto;
  animation: discovery-open 0.2s ease both;
  overflow: hidden;
}

.discovery-popover::before {
  content: none;
}

.discovery-popover[hidden],
.discovery-connector[hidden] {
  display: none;
}

.discovery-popover h3 {
  position: relative;
  font:
    700 24px/1.04 'Barlow Condensed',
    sans-serif;
  margin: 10px 34px 13px 0;
  text-transform: uppercase;
}

.discovery-popover p {
  position: relative;
  font:
    12px/1.65 'DM Mono',
    monospace;
  margin: 0;
  color: #264534;
}

.discovery-popover .discovery-bubble-label {
  position: relative;
  font-size: 9px;
  letter-spacing: 0.15em;
  color: #567348;
  text-transform: uppercase;
}

.discovery-close {
  position: absolute;
  right: 6px;
  top: 4px;
  background: none;
  border: 0;
  color: #254132;
  font-size: 24px;
  cursor: pointer;
  padding: 3px 10px;
  z-index: 2;
}

.discovery-connector {
  position: fixed;
  height: 1px;
  z-index: 50;
  transform-origin: left center;
  background: rgba(245, 248, 234, 0.95);
  pointer-events: none;
}

@keyframes discovery-open {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.97);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .discovery-popover {
    animation: none;
  }
}