/* Inter, lokal eingebunden (kein externer Request, datenschutzfreundlich) */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-variable.woff2") format("woff2");
}

:root {
  --page: #f6f8f8;
  --surface: #ffffff;
  --surface-muted: #eef4f5;
  --line: #d7e2e5;
  --line-strong: #bfd1d6;
  --text: #20313a;
  --muted: #5d6e76;
  --accent: #007c89;
  --accent-strong: #005d68;
  --accent-soft: #dceff1;
  --focus: #0a8fa0;
  --sponsor-red: #c8272d;
  --max: 1120px;
  --radius: 8px;
  --font: "Inter", "Source Sans 3", "IBM Plex Sans", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

p {
  margin: 0;
}

p + p {
  margin-top: 1rem;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  line-height: 1.15;
  letter-spacing: 0;
}

h1 {
  max-width: 880px;
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  font-weight: 760;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.65rem);
  font-weight: 720;
}

h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -3rem;
  z-index: 50;
  padding: 0.6rem 1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--accent-strong);
  font-weight: 720;
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 0.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--page);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: min(100% - 2rem, var(--max));
  min-height: 76px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--accent-strong);
  font-weight: 780;
  letter-spacing: 0.04em;
}

.brand-text {
  display: grid;
  gap: 0.05rem;
  min-width: 0;
}

.brand-name {
  font-weight: 760;
  line-height: 1.2;
}

.brand-claim {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.2;
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.primary-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 0.8rem;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.primary-nav a:hover {
  color: var(--text);
  background: var(--surface-muted);
}

.primary-nav a[aria-current="page"] {
  color: var(--accent-strong);
  background: var(--accent-soft);
  border-color: var(--line-strong);
  font-weight: 720;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  content: "";
}

.menu-toggle-lines {
  position: relative;
}

.menu-toggle-lines::before,
.menu-toggle-lines::after {
  position: absolute;
  left: 0;
}

.menu-toggle-lines::before {
  top: -6px;
}

.menu-toggle-lines::after {
  top: 6px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.72rem 1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  font-weight: 720;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.button:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.button.secondary {
  background: transparent;
  color: var(--accent-strong);
}

.button.secondary:hover {
  background: var(--accent-soft);
}

.button.small {
  min-height: 40px;
  padding: 0.58rem 0.85rem;
  font-size: 0.94rem;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.narrow {
  max-width: 760px;
}

.section {
  padding: 92px 0;
}

.section.compact {
  padding: 64px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-header {
  display: grid;
  gap: 1rem;
  max-width: 820px;
  margin-bottom: 2.5rem;
}

.section-kicker {
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
}

.page-banner {
  position: relative;
  width: 100%;
  height: clamp(180px, 22vw, 300px);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(246, 248, 248, 0) 50%,
    var(--page) 100%
  );
  pointer-events: none;
}

.hero {
  padding: 48px 0 88px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.75fr);
  gap: 4rem;
  align-items: center;
}

.hero-copy {
  display: grid;
  gap: 1.5rem;
}

.hero-copy .claim {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--accent-strong);
  font-size: 0.92rem;
  font-weight: 760;
}

.hero-actions,
.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 0.3rem;
}

.hero-panel,
.content-card,
.person-card,
.event-card,
.sponsor-card,
.legal-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.hero-panel {
  padding: 1.5rem;
}

.panel-title {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
  font-weight: 760;
}

.fact-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fact-list li {
  display: grid;
  grid-template-columns: 1.2rem 1fr;
  gap: 0.65rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.fact-list li:last-child {
  border-bottom: 0;
}

.fact-list li::before {
  width: 0.48rem;
  height: 0.48rem;
  margin-top: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.process-list {
  display: grid;
  gap: 1rem;
  counter-reset: process;
}

.process-item {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
  counter-increment: process;
}

.process-item:first-child {
  border-top: 0;
}

.process-number {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent-strong);
  font-weight: 760;
}

.process-number::before {
  content: counter(process, decimal-leading-zero);
}

.process-content {
  display: grid;
  gap: 0.35rem;
}

.process-content h2 {
  font-size: 1.25rem;
  line-height: 1.25;
}

.process-content p,
.content-card p,
.person-card p,
.event-card p,
.sponsor-card p,
.legal-card p {
  color: var(--muted);
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.fact-box {
  min-height: 150px;
  padding: 1.35rem;
  background: var(--surface);
}

.fact-box strong {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--accent-strong);
  font-size: 0.95rem;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 3rem;
  align-items: start;
}

.content-stack {
  display: grid;
  gap: 1rem;
}

.content-card {
  padding: 1.5rem;
}

.content-card h3 {
  margin-bottom: 0.55rem;
}

.muted-band {
  background: var(--surface-muted);
}

.event-grid,
.board-grid,
.sponsor-grid {
  display: grid;
  gap: 1rem;
}

.event-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.board-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
}

.event-card,
.person-card,
.sponsor-card,
.legal-card {
  padding: 1.35rem;
}

.event-card {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.event-meta {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.event-meta span {
  display: block;
}

.event-card .button {
  margin-top: 0.2rem;
  width: fit-content;
}

.person-card {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1.15rem;
  height: 100%;
}

.photo-placeholder {
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--accent-soft), var(--surface-muted));
}

.photo-placeholder span {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent-strong);
  font-size: 1.3rem;
  font-weight: 760;
  letter-spacing: 0.03em;
}

.person-card h3 {
  font-size: 1.03rem;
  min-height: 4.15rem;
}

.person-card .role {
  margin-top: 0;
  color: var(--accent-strong);
  font-weight: 720;
}

.person-card > div:last-child {
  display: grid;
  align-content: start;
  gap: 0.35rem;
}

.sponsor-grid {
  grid-template-columns: minmax(0, 1fr);
  max-width: 540px;
}

.sponsor-card {
  display: grid;
  gap: 1rem;
}

.sponsor-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 116px;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.sponsor-logo img {
  width: min(100%, 300px);
}

.contact-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.contact-panel h2 {
  font-size: clamp(1.55rem, 2.5vw, 2.15rem);
}

.contact-panel p {
  max-width: 650px;
  margin-top: 0.65rem;
  color: var(--muted);
}

.contact-email {
  display: inline-flex;
  align-items: center;
  margin-top: 1rem;
  color: var(--accent-strong);
  font-size: 1.1rem;
  font-weight: 720;
  text-underline-offset: 0.2em;
}

.contact-actions {
  display: flex;
  flex-shrink: 0;
}

.external-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.external-panel h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.05rem);
}

.external-panel p {
  max-width: 680px;
  margin-top: 0.7rem;
  color: var(--muted);
}

.external-url {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-top: 1rem;
  color: var(--accent-strong);
  font-weight: 720;
}

.external-note {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.info-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.info-strip-item {
  min-height: 132px;
  padding: 1.3rem;
  background: var(--surface);
}

.info-strip-item h3 {
  margin-bottom: 0.45rem;
}

.info-strip-item p {
  color: var(--muted);
}

.info-strip.cols-4 {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

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

.format-card {
  display: grid;
  align-content: start;
  gap: 0.5rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.format-card p {
  color: var(--muted);
}

.page-intro {
  padding: 40px 0 56px;
  border-bottom: 1px solid var(--line);
}

.page-intro .container {
  display: grid;
  gap: 1rem;
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1.5rem;
  padding: 1.3rem 0;
  border-top: 1px solid var(--line);
}

.timeline-item:first-child {
  border-top: 0;
}

.timeline-year {
  color: var(--accent-strong);
  font-weight: 760;
}

.legal-card {
  max-width: 780px;
}

.legal-text h3 {
  margin-top: 1.8rem;
  margin-bottom: 0.4rem;
  color: var(--accent-strong);
}

.legal-text > h2 + h3 {
  margin-top: 1.2rem;
}

.legal-text a {
  color: var(--accent-strong);
  font-weight: 650;
}

.legal-list {
  display: grid;
  gap: 0.7rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.legal-list li {
  padding-top: 0.7rem;
  border-top: 1px solid var(--line);
}

.legal-list strong {
  display: block;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.75fr) minmax(0, 0.9fr) minmax(0, 0.9fr);
  gap: 2rem;
  padding: 48px 0;
}

.footer-brand {
  display: grid;
  gap: 0.8rem;
  max-width: 380px;
}

.footer-title {
  font-weight: 760;
}

.footer-grid p,
.footer-grid a {
  color: var(--muted);
}

.footer-col {
  display: grid;
  align-content: start;
  gap: 0.55rem;
}

.footer-col h2 {
  margin-bottom: 0.2rem;
  font-size: 0.95rem;
}

.footer-col a {
  width: fit-content;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--text);
  text-decoration: underline;
}

.footer-sponsor-note {
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-bottom {
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .header-inner {
    min-height: 68px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-wrap {
    position: fixed;
    inset: 69px 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem;
    border-bottom: 1px solid var(--line);
    background: var(--page);
  }

  .nav-wrap.is-open {
    display: flex;
  }

  .primary-nav {
    display: grid;
    gap: 0.25rem;
  }

  .primary-nav a {
    justify-content: flex-start;
    padding: 0.75rem;
  }

  .nav-wrap .button {
    margin-top: 0.8rem;
    width: 100%;
  }

  .hero-grid,
  .two-column,
  .contact-panel,
  .external-panel {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 2rem;
  }

  .facts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .event-grid,
  .board-grid,
  .format-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-panel {
    display: grid;
  }

  .info-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .brand-claim {
    display: none;
  }

  .section {
    padding: 60px 0;
  }

  .section.compact {
    padding: 48px 0;
  }

  .hero {
    padding: 64px 0 58px;
  }

  .hero-actions,
  .inline-actions {
    display: grid;
  }

  .button,
  .event-card .button {
    width: 100%;
  }

  .process-item {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }

  .facts-grid,
  .event-grid,
  .board-grid,
  .format-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .fact-box {
    min-height: auto;
  }

  .person-card h3 {
    min-height: 0;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .contact-panel,
  .external-panel {
    padding: 1.35rem;
  }
}