/* ============================================================
   ApertaActa.com — Stylesheet nach ci.md v1.0.0
   Minimalist-Editorial · keine Schatten · 1px-Borders · base-4
   ============================================================ */

/* ---------- Fonts (self-hosted, variable WOFF2) ---------- */
@font-face {
  font-family: "Playfair Display";
  src: url("/assets/fonts/playfair-display-latin.woff2") format("woff2");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215;
}
@font-face {
  font-family: "Playfair Display";
  src: url("/assets/fonts/playfair-display-latin-ext.woff2") format("woff2");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF,
    U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215;
}
@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter-latin-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF,
    U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---------- Design-Tokens (ci.md §3) ---------- */
:root {
  --surface: #f9f9f9;
  --surface-card: #ffffff;
  --surface-low: #f3f3f3;
  --surface-high: #e8e8e8;
  --ink: #1a1c1c;
  --ink-muted: #45474c;
  --outline: #75777d;
  --border-subtle: #e2e8f0;
  --border-strong: #cbd5e1;
  --primary: #091426;
  --primary-container: #1e293b;
  --gold: #725c00;
  --gold-bright: #fdd755;
  --teal: #0d6e66;
  --teal-dark: #002f2b;
  --error: #ba1a1a;
  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --max: 1280px;
  --pad: 64px;
}

/* ---------- Reset & Basis ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img, picture { display: block; }
img { max-width: 100%; height: auto; }
a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--teal-dark); }
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
  border-radius: 2px;
}
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 16px;
  color: var(--primary);
}
h1 { font-size: clamp(28px, 5vw, 48px); line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(24px, 3.5vw, 32px); }
h3 { font-size: 22px; font-weight: 600; line-height: 1.3; }
p { margin: 0 0 16px; }
.prose { max-width: 70ch; }
.prose p, .prose li { font-size: 17px; line-height: 1.6; color: var(--ink); }
.lead { font-size: 18px; line-height: 1.6; color: var(--ink-muted); }
blockquote {
  margin: 32px 0;
  padding: 16px 24px;
  border-left: 3px solid var(--gold-bright);
  background: var(--surface-card);
  border-top: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.45;
  color: var(--primary);
}
ul { padding-left: 22px; }
li { margin-bottom: 8px; }
hr { border: 0; border-top: 1px solid var(--border-subtle); margin: 48px 0; }

/* ---------- Utility ---------- */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}
.data-mono {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--ink-muted);
}
.section { padding: 80px 0; }
.section + .section { padding-top: 0; }
.mt-32 { margin-top: 32px; }
.mb-40 { margin-bottom: 40px; }

/* ---------- Skip-Link (accessibility.md Stufe 2) ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--primary);
  color: #fff;
  padding: 10px 18px;
  font-size: 14px;
}
.skip-link:focus {
  left: 16px;
  top: 12px;
  outline: 2px solid var(--gold-bright);
}

/* ---------- Header & Navigation ---------- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border-strong);
  position: relative;
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand svg, .footer-brand svg { flex: none; }
.brand-text { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.05; }
.brand-name { white-space: nowrap; }
.brand-claim {
  font-family: var(--sans);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 3px;
}
.footer-brand .brand-claim { color: #8590a6; }
@media (max-width: 380px) { .brand-claim { display: none; } }
.brand .tld { color: var(--gold); }
.main-nav ul {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink-muted);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a[aria-current="page"] {
  color: var(--gold);
  border-bottom-color: var(--gold-bright);
}

/* Mobile-Menü: CSS-only Checkbox-Hack (static-seo-rules §3) */
.nav-toggle-box { position: absolute; left: -9999px; }
.nav-toggle {
  display: none;
  cursor: pointer;
  padding: 10px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: var(--surface-card);
}
.nav-toggle svg { display: block; }
@media (max-width: 920px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-card);
    border-bottom: 1px solid var(--border-strong);
    z-index: 50;
  }
  .nav-toggle-box:checked ~ .main-nav { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 8px 20px 16px; }
  .main-nav a { display: block; padding: 12px 0; font-size: 15px; }
  .nav-toggle-box:focus-visible ~ .header-bar .nav-toggle,
  .nav-toggle-box:focus-visible + label.nav-toggle {
    outline: 2px solid var(--teal);
  }
}

/* Sprach-Schalter: CSS-only Pulldown (details/summary) */
.lang-switch { position: relative; }
.lang-switch summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  list-style: none;
  padding: 7px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: var(--surface-card);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
}
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-switch summary:hover { border-color: var(--outline); color: var(--primary); }
.lang-switch[open] summary {
  border-color: var(--outline);
  color: var(--primary);
}
.lang-switch[open] summary svg { transform: rotate(180deg); }
.lang-code {
  text-transform: uppercase;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 70;
  margin: 0;
  padding: 6px;
  list-style: none;
  min-width: 185px;
  background: var(--surface-card);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
}
.lang-menu li { margin: 0; }
.lang-menu a, .lang-menu strong {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 400;
  text-decoration: none;
  color: var(--ink);
}
.lang-menu .lang-code {
  font-size: 11px;
  color: var(--ink-muted);
  width: 22px;
}
.lang-menu a:hover { background: var(--surface-low); color: var(--primary); }
.lang-menu strong { color: var(--gold); font-weight: 600; }
.lang-menu strong .lang-code { color: var(--gold); }

/* ---------- Breadcrumb ---------- */
.breadcrumb { padding: 20px 0 0; }
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--ink-muted);
}
.breadcrumb li + li::before { content: "/"; margin-right: 6px; color: var(--border-strong); }
.breadcrumb a { color: var(--ink-muted); }
.breadcrumb [aria-current="page"] { color: var(--ink); font-weight: 500; }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 72px; border-bottom: 1px solid var(--border-subtle); }
.hero .label { display: block; margin-bottom: 16px; }
.hero h1 { max-width: 18ch; margin-bottom: 24px; }
.hero .lead { max-width: 62ch; margin-bottom: 32px; }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta svg { color: var(--gold); flex: none; }

/* ---------- Buttons ---------- */
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-block;
  padding: 13px 26px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 4px;
  border: 1px solid var(--primary);
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-container); color: #fff; }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--outline); color: var(--primary); }
.btn.email { text-transform: none; letter-spacing: 0.01em; }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 24px;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 28px;
}
.card:hover { border-color: var(--border-strong); }
.card h3 { margin-top: 14px; }
.card p { color: var(--ink-muted); font-size: 15px; line-height: 1.6; flex-grow: 1; }
.card-icon { color: var(--teal); }
.card-foot {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

/* Status-Chips (pill — nur hierfür, ci.md §6) */
.chip {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.chip-teal { background: #e4f3f1; color: var(--teal-dark); }
.chip-gold { background: #fbf3d3; color: var(--gold); }
.chip-muted { background: var(--surface-high); color: var(--ink-muted); }

/* ---------- Record-/Datenblock ---------- */
.record {
  background: var(--surface-card);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  overflow: hidden;
}
.record-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  background: var(--primary);
  color: #fff;
}
.record-head .label { color: var(--gold-bright); }
.record dl { margin: 0; padding: 10px 22px; }
.record-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.record-row:last-child { border-bottom: 0; }
.record dt { color: var(--ink-muted); font-size: 14px; }
.record dd {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.record-note {
  padding: 14px 22px;
  background: var(--surface-low);
  border-top: 1px solid var(--border-subtle);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-muted);
}
pre.record-code {
  margin: 24px 0;
  padding: 18px 22px;
  background: var(--primary);
  color: #d8e3fb;
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13.5px;
  line-height: 1.7;
  overflow-x: auto;
}

/* ---------- Zweispalter ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

/* ---------- Seitenkopf für Unterseiten ---------- */
.page-head { padding: 40px 0 48px; border-bottom: 1px solid var(--border-subtle); }
.page-head .label { display: block; margin-bottom: 12px; }
.page-head .lead { max-width: 66ch; margin: 0; }

/* ---------- Inhaltsverzeichnis ---------- */
.toc {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 22px 26px;
  margin: 40px 0;
}
.toc .label { color: var(--ink-muted); }
.toc ol { margin: 12px 0 0; padding-left: 20px; }
.toc li { margin-bottom: 6px; font-size: 15px; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* ---------- Artikel-Sektionen ---------- */
.article-section { padding: 48px 0 8px; }
.article-section h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  scroll-margin-top: 24px;
}
.article-section h2 svg { color: var(--gold); flex: none; }
.meta-line {
  display: inline-block;
  margin: 4px 0 20px;
  padding: 6px 12px;
  background: var(--surface-low);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
}

/* ---------- Kontakt-Kanäle ---------- */
.channel-list { display: grid; gap: 16px; }
.channel {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 22px 24px;
}
.channel:hover { border-color: var(--border-strong); }
.channel svg { color: var(--teal); flex: none; margin-top: 2px; }
.channel h3 { font-size: 18px; margin-bottom: 6px; }
.channel p { margin: 0 0 8px; color: var(--ink-muted); font-size: 15px; }
.channel a { font-weight: 500; word-break: break-word; }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 80px;
  background: var(--primary);
  color: #bcc7de;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) repeat(2, minmax(180px, 1fr));
  gap: 40px;
  padding: 56px 0 40px;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
  color: #fff;
  text-decoration: none;
}
.footer-brand .tld { color: var(--gold-bright); }
.footer-claim { margin-top: 12px; font-size: 14px; line-height: 1.6; }
.site-footer h2 {
  color: #fff;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 9px; }
.site-footer a { color: #bcc7de; text-decoration: none; font-size: 14px; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid #2c3a52;
  padding: 20px 0 28px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  font-size: 13px;
}
.footer-bottom a { color: #bcc7de; }
.footer-a11y {
  display: block;
  font-size: 12.5px;
  line-height: 1.6;
  color: #8590a6;
  padding: 0 0 8px;
}
.footer-a11y a { color: #bcc7de; text-decoration: underline; font-size: 12.5px; }

/* ---------- Trust Seal ---------- */
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0 20px;
  padding: 10px 16px;
  border: 1px solid #2c3a52;
  border-radius: 6px;
  background: var(--primary-container);
  text-decoration: none;
}
.trust-badge:hover { border-color: var(--gold); }
.trust-badge .stars { flex: none; }
.trust-badge-text { display: flex; flex-direction: column; line-height: 1.25; }
.trust-badge-text strong { color: #fff; font-size: 13px; font-weight: 600; letter-spacing: 0.02em; }
.trust-badge-text small { color: #8590a6; font-size: 11.5px; }
.trust-seal-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  padding: 24px;
}
.trust-seal { width: 170px; height: 170px; }
.axis-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-right: 6px;
  border-radius: 4px;
  background: var(--primary);
  color: var(--gold-bright);
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.record dt .axis-letter { vertical-align: middle; }
.level-list { display: grid; gap: 16px; }
.level {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 20px 24px;
}
.level-stars {
  flex: none;
  width: 120px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.level-stars .data-mono { font-size: 13px; }
.level h3 { font-size: 18px; margin-bottom: 6px; }
.level p { margin: 0; color: var(--ink-muted); font-size: 15px; line-height: 1.6; }
@media (max-width: 600px) {
  .level { flex-direction: column; gap: 10px; }
  .level-stars { flex-direction: row; align-items: center; width: auto; }
}

/* ---------- 404 ---------- */
.error-page { padding: 96px 0; text-align: left; }
.error-page .data-mono { color: var(--gold); }

/* ---------- Responsive Feinheiten ---------- */
@media (max-width: 768px) {
  :root { --pad: 20px; }
  .hero { padding: 56px 0 48px; }
  .section { padding: 56px 0; }
  .record-row { flex-direction: column; gap: 2px; }
  .record dd { text-align: left; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Print ---------- */
@media print {
  .site-header, .site-footer, .skip-link, .breadcrumb { display: none; }
  body { background: #fff; }
}