:root {
  color-scheme: dark;
  --bg: #050509;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-border: rgba(255, 255, 255, 0.14);
  --text: #f4f4f8;
  --muted: #b8b8c8;
  --accent: #00f0ff;
  --accent2: #ff2bd6;
  --green: #00ff9c;
  --warning: #ffd166;
  --nav-bg: rgba(5, 5, 9, 0.88);
  --nav-menu-bg: rgba(5, 5, 9, 0.96);
  --body-glow-a: rgba(0, 240, 255, 0.18);
  --body-glow-b: rgba(255, 43, 214, 0.16);
  --button-bg: rgba(255, 255, 255, 0.06);
  --secondary-bg: rgba(255, 255, 255, 0.05);
  --visual-bg: rgba(0, 0, 0, 0.20);
  --pipeline-bg: rgba(0, 0, 0, 0.42);
  --shadow: rgba(0, 0, 0, 0.28);
  --logo-filter: none;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f8fb;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-border: rgba(20, 26, 45, 0.14);
  --text: #111827;
  --muted: #4b5563;
  --accent: #007a88;
  --accent2: #b3138c;
  --green: #047857;
  --warning: #996500;
  --nav-bg: rgba(247, 248, 251, 0.9);
  --nav-menu-bg: rgba(247, 248, 251, 0.98);
  --body-glow-a: rgba(0, 122, 136, 0.16);
  --body-glow-b: rgba(179, 19, 140, 0.12);
  --button-bg: rgba(17, 24, 39, 0.05);
  --secondary-bg: rgba(17, 24, 39, 0.04);
  --visual-bg: rgba(255, 255, 255, 0.48);
  --pipeline-bg: rgba(255, 255, 255, 0.82);
  --shadow: rgba(17, 24, 39, 0.10);
  --logo-filter: none;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, var(--body-glow-a), transparent 35%),
    radial-gradient(circle at bottom right, var(--body-glow-b), transparent 35%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  width: 100%;
  padding: 0.8rem min(4vw, 2rem);
  border-bottom: 1px solid var(--panel-border);
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}

.nav-brand img {
  width: 210px;
  height: auto;
  display: block;
  filter: var(--logo-filter);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-weight: 700;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
}

.nav-toggle {
  display: none;
  padding: 0.65rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--panel-border);
  background: var(--button-bg);
  color: var(--text);
  font: inherit;
  font-weight: 800;
}

.theme-toggle {
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: var(--button-bg);
  color: var(--text);
  cursor: pointer;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  font: inherit;
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.language-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: var(--button-bg);
}

.language-toggle button {
  min-width: 2.4rem;
  min-height: 2rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 900;
}

.language-toggle button.active {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text);
}

.language-toggle button:hover,
.language-toggle button:focus-visible {
  color: var(--accent);
}

:root:not([data-language="en"]) [data-lang="en"],
:root[data-language="en"] [data-lang="de"] {
  display: none;
}

.wrap {
  width: min(1120px, 92vw);
  margin: 0 auto;
  padding: 3rem 0;
}

.hero {
  min-height: 76vh;
  display: flex;
  align-items: center;
}

.page-hero {
  padding: 4rem 0 2rem;
}

.featured-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 1.5rem;
  align-items: stretch;
  margin: 2rem 0 4rem;
}

.featured-hero-media {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
}

.featured-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.featured-hero-media-wide {
  grid-column: 1 / -1;
  min-height: 460px;
}

.featured-hero-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.8rem;
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 92%, transparent), color-mix(in srgb, var(--button-bg) 95%, transparent));
  box-shadow: 0 20px 80px var(--shadow);
}

.featured-hero-body h2 {
  margin-top: 0;
}

.featured-hero-meta {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin: 0.4rem 0 1.5rem;
}

.featured-hero-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.badge {
  display: inline-block;
  max-width: 100%;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.3rem;
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(3rem, 9vw, 7rem);
  line-height: 0.95;
  margin: 0 0 1.5rem;
}

h1 span {
  display: block;
  color: var(--accent);
  text-shadow: 0 0 28px rgba(0, 240, 255, 0.45);
}

h2 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  margin-bottom: 1rem;
}

h3 {
  color: var(--accent);
  margin-top: 0;
}

.claim,
.lead {
  max-width: 820px;
  color: var(--muted);
}

.claim {
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  margin-bottom: 2rem;
}

.lead {
  font-size: 1.15rem;
}

.language-version-links {
  display: inline-flex;
  gap: 0.6rem;
  margin: 0 0 1.6rem;
  flex-wrap: wrap;
}

.version-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--muted);
  font-weight: 800;
}

.version-link.active {
  color: var(--text);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
}

.actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.9rem 1.2rem;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.16), rgba(255, 43, 214, 0.12));
  color: var(--text);
  font-weight: 800;
}

.btn.secondary {
  background: var(--secondary-bg);
  color: var(--muted);
}

section {
  margin: 4rem 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  min-height: 220px;
  padding: 1.4rem;
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 80px var(--shadow);
}

.card p {
  color: var(--muted);
  margin-bottom: 0;
}

.module-visual {
  height: 112px;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(0, 240, 255, 0.10), rgba(255, 43, 214, 0.08)),
    var(--visual-bg);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.module-visual img {
  width: min(100%, 160px);
  height: 112px;
  object-fit: contain;
  display: block;
}

.pipeline {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding: 1.3rem;
  border-radius: 18px;
  background: var(--pipeline-bg);
  border: 1px solid var(--panel-border);
  overflow-x: auto;
  color: var(--green);
  white-space: pre-line;
}

.fact-tree {
  display: grid;
  gap: 0.8rem;
  max-width: 860px;
}

.fact-node {
  position: relative;
  padding: 1.3rem;
  border: 1px solid var(--panel-border);
  border-left-width: 5px;
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 18px 60px var(--shadow);
}

.fact-node h3 {
  margin-bottom: 0.65rem;
}

.fact-node p,
.fact-node li {
  color: var(--muted);
}

.fact-node ul {
  display: grid;
  gap: 0.45rem;
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
}

.fact-kicker {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fact-status {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  margin-top: 1rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 850;
}

.fact-yes {
  border-left-color: var(--green);
}

.fact-yes .fact-status {
  color: var(--green);
}

.fact-no {
  border-left-color: var(--accent);
}

.fact-no .fact-status {
  color: var(--accent);
}

.fact-warning {
  border-left-color: var(--warning);
}

.fact-warning .fact-status {
  color: var(--warning);
}

.fact-result {
  border-left-color: var(--accent2);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), color-mix(in srgb, var(--accent2) 10%, transparent)),
    var(--panel);
}

.fact-result .fact-status {
  color: var(--accent2);
}

.fact-unknown {
  border-left-color: var(--muted);
}

.fact-unknown .fact-status {
  color: var(--muted);
}

.fact-connector {
  width: 2px;
  height: 1.8rem;
  margin-left: 2rem;
  background: linear-gradient(var(--accent), var(--accent2));
  opacity: 0.75;
}

.case-file {
  padding: 1.5rem;
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 14%, transparent), color-mix(in srgb, var(--accent2) 8%, transparent)),
    var(--panel);
  box-shadow: 0 24px 90px var(--shadow);
}

.case-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.32fr);
  gap: 1rem;
  align-items: stretch;
}

.case-header h2 {
  margin: 0.1rem 0 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.04em;
}

.case-header p,
.research-progress small {
  color: var(--muted);
}

.case-number,
.comparison-kicker {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.research-progress {
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  background: var(--pipeline-bg);
  display: grid;
  align-content: center;
  gap: 0.35rem;
}

.research-progress span,
.case-status span,
.status-pill span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.research-progress strong {
  color: var(--green);
  font-size: 1.6rem;
}

.case-status,
.status-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.8rem;
  margin-top: 1rem;
}

.case-status div,
.status-pill {
  min-height: 96px;
  padding: 0.9rem;
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  background: var(--button-bg);
  display: grid;
  align-content: center;
  gap: 0.35rem;
}

.case-status strong,
.status-pill strong {
  color: var(--text);
}

.status-pill {
  border-left-width: 5px;
}

.status-green {
  border-left-color: var(--green);
}

.status-yellow {
  border-left-color: var(--warning);
}

.status-red {
  border-left-color: #ff5a7a;
}

.status-grey {
  border-left-color: var(--muted);
}

.timeline {
  display: grid;
  gap: 0.8rem;
  border-left: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  padding-left: 1.2rem;
}

.timeline-item {
  position: relative;
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  background: var(--panel);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1.2rem - 7px);
  top: 1.2rem;
  width: 12px;
  height: 12px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--bg);
}

.timeline-item span,
.open-question-card span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.timeline-item p,
.evidence-card p,
.source-note p,
.open-question-card p {
  color: var(--muted);
  margin: 0.4rem 0 0;
}

.comparison-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 0.8rem;
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background: var(--panel);
}

.comparison-column,
.comparison-row,
.evidence-card,
.source-note,
.open-question-card {
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  background: var(--button-bg);
}

.comparison-vs {
  align-self: center;
  justify-self: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: var(--accent);
  font-weight: 950;
}

.comparison-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
}

.comparison-label {
  display: block;
  font-weight: 700;
}

.comparison-status,
.evidence-level {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
  white-space: nowrap;
}

.comparison-status.status-green,
.level-green {
  color: var(--green);
}

.comparison-status.status-yellow,
.level-yellow {
  color: var(--warning);
}

.comparison-status.status-grey {
  color: var(--muted);
}

.level-blue {
  color: var(--accent);
}

.evidence-board,
.open-question-board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.9rem;
}

.evidence-card h3,
.source-note h3 {
  margin-top: 0.75rem;
}

.tagline {
  margin-top: 4rem;
  padding: 2rem;
  border-radius: 28px;
  border: 1px solid rgba(0, 240, 255, 0.25);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.12), rgba(255, 43, 214, 0.10));
  font-size: clamp(1.4rem, 3vw, 2.3rem);
  font-weight: 850;
}

.content-list {
  display: grid;
  gap: 1rem;
  padding: 0;
  list-style: none;
}

.content-list li {
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  background: var(--button-bg);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.image-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 18px 60px var(--shadow);
}

.image-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  background: var(--visual-bg);
}

.image-card figcaption {
  padding: 0.9rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.image-card figcaption strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.35rem;
}

footer {
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--panel-border);
}

.footer-inner {
  width: min(1120px, 92vw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 820px) {
  .site-nav {
    align-items: flex-start;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding: 1rem min(4vw, 2rem);
    border-bottom: 1px solid var(--panel-border);
    background: var(--nav-menu-bg);
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav.open .nav-links {
    display: flex;
  }

  .nav-brand img {
    width: 170px;
  }

  .case-header,
  .comparison-panel,
  .featured-hero {
    grid-template-columns: 1fr;
  }

  .featured-hero-media {
    min-height: 320px;
  }

  .comparison-vs {
    width: 100%;
    height: 2.4rem;
  }

  .comparison-row {
    align-items: flex-start;
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .wrap {
    width: min(360px, calc(100% - 1.5rem));
    margin-left: 0.75rem;
    margin-right: 0.75rem;
  }

  .page-hero {
    padding-top: 2.4rem;
  }

  .badge {
    border-radius: 12px;
    line-height: 1.35;
  }

  h1 {
    font-size: 3rem;
  }

  .case-file {
    padding: 1rem;
  }

  .case-status,
  .status-strip,
  .evidence-board,
  .open-question-board {
    grid-template-columns: 1fr;
  }

  .status-pill,
  .case-status div {
    min-height: auto;
  }
}