/*
Theme Name: Artificial Commons
Theme URI: https://artificialcommons.eu
Author: Dr. Andreas Gradert
Author URI: https://gradert.at
Description: Ein schlankes WordPress-Theme für die Artificial Commons Initiative.
Version: 2.7.1
Requires at least: 6.0
Tested up to: 6.9
Requires PHP: 7.4
Text Domain: artificial-commons
*/

:root {
  --ac-bg: #f6f7f8;
  --ac-surface: #ffffff;
  --ac-text: #17191c;
  --ac-muted: #60656d;
  --ac-line: #d9dde3;
  --ac-primary: #111827;
  --ac-accent: #4f46e5;
  --ac-warning: #b45309;
  --ac-radius: 18px;
  --ac-shadow: 0 12px 30px rgba(17, 24, 39, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ac-bg);
  color: var(--ac-text);
  font-family: "Titillium Web", sans-serif;
  line-height: 1.65;
}
a { color: var(--ac-accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; height: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(246,247,248,.92);
  border-bottom: 1px solid rgba(217,221,227,.85);
}
.header-inner,
.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}
.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-branding { display:flex; align-items:center; gap:12px; }
.site-logo-mark {
  width: 40px; height:40px; border-radius:12px;
  display:grid; place-items:center;
  background: var(--ac-primary); color:#fff; font-weight: 400;
  letter-spacing:-.04em;
}
.site-title { margin:0; font-size:1.05rem; font-weight: 400; }
.site-title a { color: var(--ac-text); text-decoration:none; }
.site-description { margin:0; color:var(--ac-muted); font-size:.82rem; }

.main-navigation ul { list-style:none; display:flex; gap:20px; margin:0; padding:0; }
.main-navigation a { color:var(--ac-text); text-decoration:none; font-weight: 400; font-size:.95rem; }
.main-navigation a:hover { color:var(--ac-accent); }
.menu-toggle { display:none; border:1px solid var(--ac-line); background:var(--ac-surface); border-radius:10px; padding:8px 11px; }

.hero {
  padding: 96px 0 56px;
}
.hero-grid { display:grid; grid-template-columns: 1.15fr .85fr; gap:48px; align-items:center; }
.eyebrow { color:var(--ac-accent); font-weight: 400; text-transform:uppercase; letter-spacing:.12em; font-size:.78rem; }
.hero h1 { font-size:clamp(2.6rem, 6vw, 5.8rem); line-height:.98; letter-spacing:-.055em; margin:.2em 0 .28em; }
.hero p { font-size:1.18rem; color:var(--ac-muted); max-width:720px; }
.hero-actions { display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
.button {
  display:inline-flex; align-items:center; justify-content:center;
  border-radius:999px; padding:12px 18px; font-weight: 400;
  text-decoration:none; border:1px solid var(--ac-primary);
}
.button-primary { background:var(--ac-primary); color:#fff; }
.button-secondary { background:transparent; color:var(--ac-primary); }

.ac-card {
  background:var(--ac-surface); border:1px solid var(--ac-line); border-radius:var(--ac-radius); box-shadow:var(--ac-shadow);
}
.hero-panel { padding:24px; }
.ac-badge { display:flex; align-items:center; gap:14px; padding:14px 0; border-bottom:1px solid var(--ac-line); }
.ac-badge:last-child { border-bottom:0; }
.ac-code { width:58px; height:36px; border-radius:999px; display:grid; place-items:center; background:var(--ac-primary); color:#fff; font-weight: 400; }
.ac-panel-label { margin:2px 0 4px; color:var(--ac-muted); font-size:.78rem; letter-spacing:.08em; text-transform:uppercase; }
.ac-panel-label-marker { margin-top:18px; padding-top:16px; border-top:1px dashed var(--ac-line); }
.ac-copy .ac-name { display:block; color:var(--ac-text); font-size:1rem; }
.ac-copy span:not(.ac-name) { color:var(--ac-muted); font-size:.92rem; }
.ac-badge-marker .ac-code { background:var(--ac-warning); }

.section { padding:64px 0; }
.section-header { max-width:760px; margin-bottom:30px; }
.section h2 { font-size:clamp(2rem, 4vw, 3.5rem); line-height:1.08; letter-spacing:-.04em; margin:0 0 14px; }
.section p { color:var(--ac-muted); }
.card-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.info-card { padding:24px; }
.info-card h3 { margin-top:0; }

.content-area { padding:52px 0 72px; }
.entry-card { padding:32px; margin-bottom:24px; }
.entry-title { margin-top:0; font-size:clamp(2rem, 4vw, 3.4rem); line-height:1.1; }
.entry-meta { color:var(--ac-muted); font-size:.92rem; margin-bottom:24px; }

.site-footer { border-top:1px solid var(--ac-line); padding:18px 0 24px; color:var(--ac-muted); }
.footer-inner { text-align:left; }
.footer-line { display:flex; align-items:center; justify-content:flex-start; flex-wrap:wrap; gap:0; font-size:.9rem; }
.site-info { white-space:nowrap; }
.footer-separator { margin:0 .55rem; opacity:.65; }
.footer-navigation { display:inline-flex; }
.footer-menu { list-style:none; display:flex; justify-content:flex-start; align-items:center; flex-wrap:wrap; gap:0; margin:0; padding:0; }
.footer-menu li { display:inline-flex; align-items:center; margin:0; padding:0; }
.footer-menu li:not(:last-child)::after { content:"•"; margin:0 .55rem; color:var(--ac-muted); opacity:.65; }
.footer-menu a { color:var(--ac-muted); text-decoration:none; font-size:inherit; }
.footer-menu a:hover, .footer-menu a:focus-visible { color:var(--ac-text); text-decoration:underline; }
@media (max-width:700px) {
  .footer-line { align-items:flex-start; }
}
.site-info { font-size:.82rem; }

@media (max-width: 860px) {
  .hero-grid, .card-grid { grid-template-columns:1fr; }
  .hero { padding-top:64px; }
  .menu-toggle { display:block; }
  .main-navigation { display:none; position:absolute; top:74px; left:16px; right:16px; background:var(--ac-surface); border:1px solid var(--ac-line); border-radius:14px; padding:14px; box-shadow:var(--ac-shadow); }
  .main-navigation.is-open { display:block; }
  .main-navigation ul { flex-direction:column; gap:10px; }
}

/* Password-protected read-only mail archive */
.ac-archive-page .entry-card { max-width: 1040px; margin-inline: auto; }
.ac-archive-intro { max-width: 720px; }
.post-password-form { max-width: 520px; margin-top: 26px; }
.post-password-form p:last-child { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.post-password-form label { flex: 1 1 280px; font-weight: 400; }
.post-password-form input[type="password"] {
  width: 100%; margin-top: 8px; padding: 12px 14px; border: 1px solid var(--ac-line);
  border-radius: 10px; background: var(--ac-surface); color: var(--ac-text); font: inherit;
}
.post-password-form input[type="submit"] {
  padding: 12px 18px; border: 1px solid var(--ac-primary); border-radius: 999px;
  background: var(--ac-primary); color: #fff; font: inherit; font-weight: 400; cursor: pointer;
}
.ac-archive-notice { margin: 24px 0; padding: 18px 20px; border: 1px solid #d6a44d; border-radius: 14px; background: #fffaf0; }
.ac-archive-notice p { margin: 6px 0 0; color: var(--ac-text); }
.ac-archive-toolbar { display: flex; justify-content: space-between; gap: 20px; align-items: baseline; margin: 28px 0 18px; padding-bottom: 16px; border-bottom: 1px solid var(--ac-line); }
.ac-archive-toolbar p { margin: 0; }
.ac-archive-readonly { font-size: .9rem; color: var(--ac-muted); }
.ac-mail-list { display: grid; gap: 10px; }
.ac-mail-item { border: 1px solid var(--ac-line); border-radius: 14px; background: var(--ac-surface); overflow: clip; }
.ac-mail-item summary { display: grid; grid-template-columns: 34px minmax(0,1fr) auto; gap: 13px; align-items: center; padding: 16px 18px; cursor: pointer; list-style: none; }
.ac-mail-item summary::-webkit-details-marker { display: none; }
.ac-mail-item[open] summary { border-bottom: 1px solid var(--ac-line); background: #fafafa; }
.ac-mail-direction { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; background: var(--ac-primary); color: #fff; font-weight: 400; }
.ac-mail-item.is-outgoing .ac-mail-direction { background: #fff; color: var(--ac-primary); border: 1px solid var(--ac-primary); }
.ac-mail-summary-main { min-width: 0; display: grid; }
.ac-mail-subject, .ac-mail-counterpart { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ac-mail-counterpart { color: var(--ac-muted); font-size: .91rem; }
.ac-mail-item time { color: var(--ac-muted); font-size: .88rem; white-space: nowrap; }
.ac-mail-detail { padding: 20px 22px 24px; }
.ac-mail-meta { display: grid; gap: 7px; margin: 0 0 20px; font-size: .91rem; }
.ac-mail-meta div { display: grid; grid-template-columns: 62px minmax(0,1fr); gap: 12px; }
.ac-mail-meta dt { font-weight: 400; }
.ac-mail-meta dd { margin: 0; overflow-wrap: anywhere; }
.ac-mail-body { padding: 18px; border-radius: 12px; background: var(--ac-bg); white-space: normal; overflow-wrap: anywhere; font-family: "Titillium Web", sans-serif !important; font-size: 15px; line-height: 1.35; }
.ac-archive-empty { padding: 28px; border: 1px dashed var(--ac-line); border-radius: 14px; text-align: center; color: var(--ac-muted); }
@media (max-width: 700px) {
  .ac-archive-toolbar { display: block; }
  .ac-archive-readonly { margin-top: 5px !important; }
  .ac-mail-item summary { grid-template-columns: 34px minmax(0,1fr); }
  .ac-mail-item time { grid-column: 2; }
}

/* Mail archive 1.2: search, HTML mail and attachments */
.ac-archive-controls { display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end; }
.ac-archive-controls input,
.ac-archive-controls select { min-height:42px; border:1px solid var(--ac-line); border-radius:10px; background:#fff; color:var(--ac-text); padding:9px 12px; font:inherit; }
.ac-archive-controls input { min-width:240px; }
.ac-mail-summary-meta { display:flex; align-items:center; gap:12px; justify-content:flex-end; }
.ac-paperclip { color:var(--ac-muted); font-size:.82rem; white-space:nowrap; }
.ac-mail-html { width:100%; min-height:320px; border:1px solid var(--ac-line); border-radius:12px; background:#fff; padding:18px; overflow-wrap:anywhere; font-family:"Titillium Web",sans-serif !important; font-size:15px; line-height:1.35; }
.ac-mail-attachments { margin-top:22px; }
.ac-mail-attachments h3 { margin:0 0 10px; font-size:1rem; }
.ac-attachment-list { display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:10px; }
.ac-attachment { display:flex; align-items:center; gap:11px; padding:12px 14px; border:1px solid var(--ac-line); border-radius:11px; background:#fff; color:var(--ac-text); text-decoration:none; }
.ac-attachment:hover { border-color:var(--ac-primary); }
.ac-attachment-icon { font-size:1.2rem; }
.ac-attachment span:last-child { min-width:0; display:grid; }
.ac-attachment strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.ac-attachment small { color:var(--ac-muted); font-size:.78rem; }
.ac-mail-item[hidden] { display:none !important; }
@media (max-width: 760px) {
  .ac-archive-toolbar { display:block; }
  .ac-archive-controls { justify-content:stretch; margin-top:16px; }
  .ac-archive-controls label, .ac-archive-controls input, .ac-archive-controls select { width:100%; }
  .ac-mail-summary-meta { grid-column:2; justify-content:flex-start; }
}


/* Mail archive 1.5: visible IMAP folder navigation */
.ac-mail-folders { display:flex; gap:8px; flex-wrap:wrap; margin:24px 0 8px; padding:12px; border:1px solid var(--ac-line); border-radius:14px; background:var(--ac-bg); }
.ac-folder-link { display:inline-flex; align-items:center; gap:7px; padding:8px 11px; border:1px solid var(--ac-line); border-radius:10px; background:#fff; color:var(--ac-text); text-decoration:none; font-size:.9rem; }
.ac-folder-link:hover { border-color:var(--ac-primary); }
.ac-folder-link.is-active { background:var(--ac-primary); color:#fff; border-color:var(--ac-primary); }
.ac-mail-item.is-other .ac-mail-direction { background:var(--ac-muted); color:#fff; }
@media (max-width:760px) { .ac-mail-folders { display:grid; grid-template-columns:1fr 1fr; } .ac-folder-link { min-width:0; overflow:hidden; } .ac-folder-link strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; } }

/* Mail archive 1.6: two-column inbox archive */
.ac-archive-page .entry-card { max-width: 1280px; }
.ac-mail-client { display:grid; grid-template-columns:240px minmax(0,1fr); min-height:620px; margin-top:24px; border:1px solid var(--ac-line); border-radius:16px; overflow:hidden; background:#fff; }
.ac-mail-sidebar { padding:18px 12px; border-right:1px solid var(--ac-line); background:var(--ac-bg); }
.ac-mail-sidebar-title { padding:0 10px 12px; font-weight: 400; font-size:.85rem; letter-spacing:.04em; text-transform:uppercase; color:var(--ac-muted); }
.ac-mail-folder-tree { display:grid; gap:3px; }
.ac-folder-node { min-width:0; }
.ac-folder-row { display:flex; align-items:center; min-width:0; padding-left:calc(var(--folder-depth, 0) * 13px); }
.ac-folder-toggle,
.ac-folder-toggle-spacer { flex:0 0 28px; width:28px; height:36px; }
.ac-folder-toggle { display:grid; place-items:center; border:0; border-radius:7px; background:transparent; color:var(--ac-muted); cursor:pointer; padding:0; }
.ac-folder-toggle:hover,
.ac-folder-toggle:focus-visible { background:#fff; color:var(--ac-text); }
.ac-folder-toggle span { display:block; font-size:.72rem; transition:transform .16s ease; }
.ac-folder-toggle[aria-expanded="true"] span { transform:rotate(90deg); }
.ac-folder-tree-link,
.ac-folder-group-label { display:flex; align-items:center; min-width:0; flex:1 1 auto; padding:9px 10px; border-radius:9px; font-size:.94rem; }
.ac-folder-tree-link { color:var(--ac-text); text-decoration:none; }
.ac-folder-tree-link:hover { background:#fff; }
.ac-folder-tree-link.is-active { background:var(--ac-primary); color:#fff; font-weight:400; }
.ac-folder-tree-link span,
.ac-folder-group-label { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.ac-folder-group-label { color:var(--ac-text); }
.ac-folder-children[hidden] { display:none !important; }
.ac-sidebar-readonly { margin:18px 10px 0; padding-top:14px; border-top:1px solid var(--ac-line); color:var(--ac-muted); font-size:.82rem; }
.ac-mail-workspace { min-width:0; padding:0 20px 24px; }
.ac-mail-workspace .ac-archive-toolbar { margin:0 -20px 16px; padding:18px 20px; align-items:center; background:#fff; }
.ac-mail-workspace .ac-archive-toolbar h2 { margin:0 0 2px; font-size:1.2rem; }
.ac-mail-workspace .ac-archive-toolbar p { color:var(--ac-muted); font-size:.88rem; }
.ac-mail-workspace .ac-mail-list { gap:0; border:1px solid var(--ac-line); border-radius:12px; overflow:hidden; }
.ac-mail-workspace .ac-mail-item { border:0; border-bottom:1px solid var(--ac-line); border-radius:0; }
.ac-mail-workspace .ac-mail-item:last-child { border-bottom:0; }
.ac-mail-workspace .ac-mail-item summary { grid-template-columns:minmax(0,1fr) auto; padding:14px 16px; }
.ac-mail-workspace .ac-mail-item[open] summary { background:var(--ac-bg); }
.ac-mail-workspace .ac-mail-detail { border-top:1px solid var(--ac-line); background:#fff; }
@media (max-width:820px) {
  .ac-mail-client { grid-template-columns:1fr; }
  .ac-mail-sidebar { border-right:0; border-bottom:1px solid var(--ac-line); }
  .ac-mail-folder-tree { display:grid; gap:3px; overflow:visible; padding-bottom:0; }
  .ac-folder-tree-link { min-width:0; padding:9px 10px; }
  .ac-sidebar-readonly { display:none; }
}


/* Mail archive 1.7: Titillium Web throughout, including HTML messages */
.ac-archive-page,
.ac-archive-page *,
.ac-archive-page button,
.ac-archive-page input,
.ac-archive-page select,
.ac-archive-page textarea,
.ac-mail-html,
.ac-mail-html * {
  font-family: "Titillium Web", sans-serif !important;
}
.ac-mail-html,
.ac-mail-html p,
.ac-mail-html li,
.ac-mail-html td,
.ac-mail-html th,
.ac-mail-body {
  font-size: 15px;
  line-height: 1.35;
}
.ac-mail-html pre,
.ac-mail-html code {
  font-family: "Titillium Web", sans-serif !important;
}
.ac-mail-html img { max-width:100%; height:auto; }
.ac-mail-html table { max-width:100%; border-collapse:collapse; }


/* Mail archive 1.8: manual refresh beside search */
.ac-refresh-form { margin:0; display:flex; }
.ac-refresh-form input[type="hidden"] { display:none; }
.ac-refresh-button { min-height:42px; padding:9px 14px; border:1px solid var(--ac-primary); border-radius:10px; background:var(--ac-primary); color:#fff; font:inherit; font-weight: 400; cursor:pointer; white-space:nowrap; }
.ac-refresh-button:hover { opacity:.88; }
.ac-refresh-button:focus-visible { outline:3px solid rgba(79,70,229,.25); outline-offset:2px; }
@media (max-width:760px) { .ac-refresh-form, .ac-refresh-button { width:100%; } }


/* Mail archive 1.9: refresh icon beside folder heading */
.ac-mail-sidebar-header { display:flex; align-items:center; justify-content:space-between; gap:10px; padding:0 10px 12px; }
.ac-mail-sidebar-header .ac-mail-sidebar-title { padding:0; }
.ac-refresh-form-sidebar { flex:0 0 auto; }
.ac-refresh-icon-button { width:34px; height:34px; min-height:34px; padding:0; display:inline-grid; place-items:center; border-radius:50%; font-size:1.25rem; line-height:1; }
.ac-refresh-icon-button:hover { transform:rotate(20deg); }
@media (max-width:760px) {
  .ac-refresh-form-sidebar, .ac-refresh-icon-button { width:auto; }
  .ac-refresh-icon-button { width:34px; }
}


/* Version 2.3: durchgehend normale Schriftstärke */
strong, b, th { font-weight: 400; }

/* 2.6.0 – precision landing-page redesign */
:root {
  --ac-bg: #f8f9fb;
  --ac-surface: #ffffff;
  --ac-text: #17191d;
  --ac-muted: #697079;
  --ac-line: #e6e8ec;
  --ac-primary: #1d2230;
  --ac-accent: #6e73d9;
  --ac-warning: #d36a10;
  --ac-radius: 12px;
  --ac-shadow: 0 18px 50px rgba(26, 30, 40, .09);
}
body { background: linear-gradient(180deg, #fbfcfd 0, #f7f8fa 58%, #fff 100%); font-weight: 400; }
.container, .header-inner { width: min(1160px, calc(100% - 56px)); }
.site-header { position: relative; background: rgba(255,255,255,.7); border-bottom: 1px solid rgba(32,37,48,.09); backdrop-filter: blur(18px); }
.header-inner { min-height: 66px; }
.site-branding { gap: 10px; }
.site-logo-mark { width: 28px; height: 28px; border-radius: 7px; font-size: .62rem; background: #252b3a; color: #fff; text-decoration: none; }
.site-title { font-size: .82rem; line-height: 1.05; font-weight: 600; }
.site-description { margin-top: 3px; font-size: .58rem; line-height: 1.15; color: #8a9098; }
.header-tools { display: flex; align-items: center; gap: 20px; }
.main-navigation ul { gap: 22px; }
.main-navigation a { font-size: .75rem; font-weight: 500; color: #4c515a; }
.header-search { width: 28px; height: 28px; display: grid; place-items: center; color: #272b31; }
.header-search svg { width: 15px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.hero { position: relative; overflow: hidden; padding: 104px 0 96px; }
.hero::before { content: ""; position: absolute; width: 520px; height: 520px; left: -250px; top: -210px; background: radial-gradient(circle, rgba(116,124,217,.08), transparent 68%); pointer-events: none; }
.hero-grid { grid-template-columns: minmax(0, 1.18fr) minmax(340px, .82fr); gap: 90px; align-items: center; }
.hero-copy { max-width: 680px; }
.eyebrow { color: #7378dc; font-size: .64rem; font-weight: 600; letter-spacing: .17em; }
.hero h1 { max-width: 680px; margin: .28em 0 .34em; font-size: clamp(3.25rem, 6.25vw, 5.75rem); line-height: .93; letter-spacing: -.065em; font-weight: 700; }
.hero p { max-width: 640px; margin: 0; color: #747b84; font-size: 1rem; line-height: 1.72; }
.hero-actions { margin-top: 28px; gap: 10px; }
.button { min-height: 38px; padding: 9px 16px; font-size: .72rem; font-weight: 600; border-width: 1px; }
.button-primary { background: #202532; border-color: #202532; box-shadow: 0 7px 18px rgba(27,31,40,.13); }
.button-primary:hover { transform: translateY(-1px); color: #fff; }
.button-secondary { background: rgba(255,255,255,.5); border-color: #aeb3ba; }
.hero-panel { padding: 25px 28px 22px; border-color: rgba(28,33,43,.06); box-shadow: 0 22px 55px rgba(27,31,41,.12); transform: translateY(6px); }
.ac-panel-label { margin: 0 0 7px; font-size: .58rem; letter-spacing: .16em; color: #a0a5ac; }
.ac-badge { gap: 13px; padding: 11px 0; border-color: #eceef1; }
.ac-code { width: 45px; height: 25px; font-size: .58rem; font-weight: 600; background: #222735; }
.ac-copy .ac-name { font-size: .72rem; font-weight: 500; line-height: 1.25; }
.ac-copy span:not(.ac-name) { font-size: .61rem; line-height: 1.3; }
.ac-panel-label-marker { margin-top: 14px; padding-top: 13px; }
.ac-badge-marker .ac-code { background: var(--ac-warning); }
.section { padding: 88px 0; }
.section-intro { background: rgba(255,255,255,.68); border-top: 1px solid rgba(28,33,43,.04); }
.section-header { max-width: 810px; margin-bottom: 38px; }
.section h2 { margin-top: .16em; font-size: clamp(2.6rem, 5vw, 4.5rem); line-height: .98; letter-spacing: -.055em; }
.section-header > p { max-width: 710px; font-size: .98rem; line-height: 1.7; }
.card-grid { gap: 16px; }
.info-card { position: relative; min-height: 210px; padding: 25px; overflow: hidden; box-shadow: none; border-color: #e8eaee; }
.info-card::after { content: ""; position: absolute; right: -50px; bottom: -80px; width: 150px; height: 150px; border-radius: 50%; background: rgba(112,118,211,.045); }
.info-index { display: inline-block; color: #969ba3; font-size: .62rem; letter-spacing: .12em; margin-bottom: 32px; }
.info-card h3 { margin: 0 0 7px; font-size: 1.22rem; }
.info-card p { margin: 0; font-size: .9rem; line-height: 1.65; }
.participation { background: #202532; color: #fff; }
.participation .eyebrow { color: #aeb2ff; }
.participation h2 { color: #fff; margin-bottom: 0; }
.participation p { color: #c4c8d0; font-size: 1rem; line-height: 1.75; }
.participation-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 90px; align-items: end; }
.text-link { display: inline-flex; gap: 9px; align-items: center; margin-top: 12px; color: #fff; font-size: .8rem; font-weight: 600; text-decoration: none; }
.text-link span { font-size: 1rem; }
.site-footer { background: #202532; color: #9ba1ad; border-top-color: rgba(255,255,255,.08); }
.footer-menu a { color: #aeb3bc; }
.footer-menu a:hover { color: #fff; }
@media (max-width: 900px) {
  .container, .header-inner { width: min(100% - 34px, 1160px); }
  .hero { padding: 70px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 45px; }
  .hero-copy { max-width: 760px; }
  .hero-panel { max-width: 540px; transform: none; }
  .participation-inner { grid-template-columns: 1fr; gap: 30px; }
  .header-tools { gap: 10px; }
}
@media (max-width: 700px) {
  .site-description { display: none; }
  .hero h1 { font-size: clamp(2.65rem, 14vw, 4.2rem); }
  .hero p { font-size: .94rem; }
  .section { padding: 65px 0; }
  .card-grid { grid-template-columns: 1fr; }
  .main-navigation { top: 62px; }
  .header-search { display: none; }
}


/* 2.6.1 – großzügigere Typografie und vergrößerte Basisstufen */
@media (min-width: 901px) {
  .container,
  .header-inner {
    width: min(1240px, calc(100% - 64px));
  }

  .hero {
    min-height: 720px;
    padding: 118px 0 112px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr);
    gap: 96px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero h1 {
    max-width: 720px;
    font-size: clamp(4.5rem, 6.3vw, 6.45rem);
    line-height: .94;
  }

  .hero p {
    max-width: 700px;
    font-size: 1.23rem;
    line-height: 1.68;
  }

  .eyebrow {
    font-size: .76rem;
  }

  .button {
    min-height: 50px;
    padding: 12px 22px;
    font-size: .9rem;
  }

  .hero-panel {
    width: 100%;
    max-width: 460px;
    justify-self: end;
    padding: 32px 34px 28px;
    border-radius: 16px;
  }

  .ac-panel-label {
    margin-bottom: 10px;
    font-size: .73rem;
  }

  .ac-badge {
    min-height: 70px;
    gap: 17px;
    padding: 14px 0;
  }

  .ac-code {
    flex: 0 0 62px;
    width: 62px;
    height: 35px;
    font-size: .77rem;
  }

  .ac-copy .ac-name {
    font-size: 1.06rem;
    line-height: 1.24;
  }

  .ac-copy span:not(.ac-name) {
    margin-top: 3px;
    font-size: .86rem;
    line-height: 1.4;
  }

  .ac-panel-label-marker {
    margin-top: 17px;
    padding-top: 16px;
  }

  .section-header > p,
  .participation p {
    font-size: 1.08rem;
  }
}

@media (min-width: 701px) and (max-width: 900px) {
  .hero h1 {
    font-size: clamp(4rem, 9vw, 5.5rem);
  }

  .hero p {
    font-size: 1.12rem;
  }

  .hero-panel {
    max-width: 620px;
    padding: 30px 32px 26px;
  }

  .ac-badge {
    min-height: 64px;
    gap: 16px;
    padding: 13px 0;
  }

  .ac-code {
    width: 58px;
    height: 34px;
    font-size: .74rem;
  }

  .ac-copy .ac-name {
    font-size: 1rem;
  }

  .ac-copy span:not(.ac-name) {
    font-size: .82rem;
  }
}

@media (max-width: 700px) {
  .hero-panel {
    padding: 26px 24px 22px;
  }

  .ac-panel-label {
    font-size: .68rem;
  }

  .ac-badge {
    min-height: 60px;
    gap: 14px;
    padding: 12px 0;
  }

  .ac-code {
    flex: 0 0 54px;
    width: 54px;
    height: 32px;
    font-size: .7rem;
  }

  .ac-copy .ac-name {
    font-size: .95rem;
  }

  .ac-copy span:not(.ac-name) {
    font-size: .78rem;
  }
}

/* 2.7.1 – reiner Artificial-Commons-Bildschriftzug im Header */
.site-branding {
  flex: 0 1 auto;
  min-width: 0;
}
.site-logo-link {
  display: block;
  line-height: 0;
  text-decoration: none;
}
.site-logo-image {
  display: block;
  width: clamp(220px, 24vw, 340px);
  max-height: 58px;
  object-fit: contain;
  object-position: left center;
}
@media (max-width: 900px) {
  .site-logo-image {
    width: clamp(190px, 38vw, 280px);
    max-height: 50px;
  }
}
@media (max-width: 700px) {
  .header-inner {
    min-height: 62px;
    gap: 12px;
  }
  .site-logo-image {
    width: min(58vw, 235px);
    max-height: 44px;
  }
}
@media (max-width: 420px) {
  .site-logo-image {
    width: min(54vw, 205px);
  }
}