/* ============================================
   KI-Kreis – Design System
   ============================================ */

/* Fonts – würden in Produktion via Fontsource self-hosted */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Farben */
  --bg: #FAFAF9;
  --bg-elevated: #FFFFFF;
  --bg-subtle: #F3F2EE;
  --ink: #1A1A1A;
  --ink-muted: #5F5E5A;
  --ink-soft: #888780;
  --primary: #1E3A5F;
  --primary-hover: #163051;
  --primary-soft: #E8EEF5;
  --accent: #C77D3F;
  --accent-soft: #FAEEDA;
  --border: #E5E3DC;
  --border-strong: #C9C6BD;
  --success-bg: #EAF3DE;
  --success-ink: #27500A;
  --info-bg: #E6F1FB;
  --info-ink: #0C447C;
  --warning-bg: #FAEEDA;
  --warning-ink: #854F0B;
  --danger-bg: #FCEBEB;
  --danger-ink: #791F1F;

  /* Typografie */
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', Menlo, Consolas, monospace;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Layout */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --content-width: 720px;
  --wide-width: 1140px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14130F;
    --bg-elevated: #1C1B17;
    --bg-subtle: #25241F;
    --ink: #F2F0EA;
    --ink-muted: #B4B2A9;
    --ink-soft: #888780;
    --primary: #6FA0D4;
    --primary-hover: #8AB5E0;
    --primary-soft: #1E2D40;
    --accent: #E0A86A;
    --accent-soft: #3A2A14;
    --border: #2E2D28;
    --border-strong: #44443F;
    --info-bg: #1E2D40;
    --info-ink: #B5D4F4;
    --warning-bg: #3A2A14;
    --warning-ink: #FAC775;
    --danger-bg: #3D1B1B;
    --danger-ink: #F09595;
  }
}

/* ============================================
   Reset & Basics
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@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;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  font-feature-settings: 'ss01', 'cv02', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip link – Barrierefreiheit */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--primary);
  color: white;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 500;
  z-index: 100;
  transition: top 0.15s;
}
.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* Focus states – Barrierefreiheit */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============================================
   Typografie
   ============================================ */

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
  font-weight: 500;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}

h3 {
  font-size: 1.375rem;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

h4 {
  font-size: 1.125rem;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

p {
  margin: 0 0 var(--space-4) 0;
}

a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s;
}
a:hover {
  color: var(--primary-hover);
  text-decoration-thickness: 2px;
}

strong, b {
  font-weight: 600;
  color: var(--ink);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-subtle);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--ink);
}

pre {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.6;
  margin: 1.5rem 0;
}
pre code {
  background: transparent;
  padding: 0;
  font-size: inherit;
}

blockquote {
  margin: 2rem 0;
  padding: 0.5rem 0 0.5rem 1.5rem;
  border-left: 3px solid var(--accent);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.5;
  font-style: italic;
  color: var(--ink-muted);
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-12) 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  margin: 0 0 var(--space-4) 0;
  padding-left: 1.5rem;
}
li {
  margin-bottom: var(--space-2);
}

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(250, 250, 249, 0.85);
}
@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(20, 19, 15, 0.85);
  }
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  max-width: var(--wide-width);
  margin: 0 auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.logo-icon {
  flex-shrink: 0;
}
.logo-word {
  display: inline-block;
}
.logo-footer {
  margin-bottom: var(--space-3);
}
.logo:hover { color: var(--ink); text-decoration: none; }
.logo-mark {
  color: var(--accent);
  font-style: italic;
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}
.nav-links a[aria-current="page"] {
  position: relative;
}
.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
}

@media (max-width: 720px) {
  .nav-links {
    gap: var(--space-4);
  }
  .nav-links a { font-size: 14px; }
}

/* ============================================
   Hero (Startseite)
   ============================================ */

.hero {
  padding: var(--space-16) 0 var(--space-12);
  position: relative;
  overflow: hidden;
}

.hero-inner {
  max-width: 820px;
}

.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.hero h1 {
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  line-height: 1.05;
  margin-bottom: var(--space-6);
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
  font-weight: 500;
}

.hero-lead {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 640px;
  margin-bottom: var(--space-8);
}

.hero-meta {
  display: flex;
  gap: var(--space-6);
  font-size: 14px;
  color: var(--ink-soft);
  flex-wrap: wrap;
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.hero-meta strong {
  color: var(--ink);
  font-weight: 500;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
  line-height: 1.2;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: white;
  text-decoration: none;
}
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  background: var(--bg-subtle);
  color: var(--ink);
  text-decoration: none;
}

/* ============================================
   Section
   ============================================ */

.section {
  padding: var(--space-16) 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  gap: var(--space-4);
  flex-wrap: wrap;
}
.section-header h2 {
  margin: 0;
}
.section-header a {
  font-size: 15px;
  font-weight: 500;
}

/* ============================================
   Featured-Sektion (Neu & aktuell, Top 3)
   ============================================ */

.featured {
  padding: var(--space-16) 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-top: var(--space-8);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 900px) {
  .featured-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin: 0 auto;
  }
}

.featured-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-8) var(--space-6) var(--space-6);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px -12px rgba(30, 58, 95, 0.25);
  color: inherit;
  text-decoration: none;
}

.featured-num {
  position: absolute;
  top: var(--space-4);
  right: var(--space-6);
  font-family: var(--font-serif);
  font-size: 2.5rem;
  line-height: 1;
  font-weight: 500;
  color: var(--border-strong);
  opacity: 0.5;
  transition: color 0.2s, opacity 0.2s;
}
.featured-card:hover .featured-num {
  color: var(--accent);
  opacity: 0.9;
}

.featured-category {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.featured-title {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  line-height: 1.25;
  margin: 0 0 var(--space-3) 0;
  color: var(--ink);
}

.featured-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-muted);
  margin: 0 0 var(--space-6) 0;
  flex-grow: 1;
}

.featured-meta {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: var(--space-3);
}

.featured-more {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.featured-card:hover .featured-more {
  gap: 0.7em;
}

@media (prefers-reduced-motion: reduce) {
  .featured-card,
  .featured-card:hover {
    transform: none;
  }
  .featured-more { transition: none; }
}

/* ============================================
   Article Card (Blog-Übersicht)
   ============================================ */

.article-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.article-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border);
}
.article-card:last-child {
  border-bottom: none;
}

.article-meta-col {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.6;
}
.article-meta-col .category {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.article-meta-col .date {
  display: block;
}
.article-meta-col .read-time {
  display: block;
}

.article-content-col h3 {
  font-size: 1.5rem;
  margin: 0 0 var(--space-3) 0;
  line-height: 1.25;
}
.article-content-col h3 a {
  color: var(--ink);
  text-decoration: none;
}
.article-content-col h3 a:hover {
  color: var(--primary);
  text-decoration: none;
}
.article-content-col p {
  color: var(--ink-muted);
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 var(--space-3) 0;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.tag {
  display: inline-block;
  font-size: 12px;
  padding: 3px 10px;
  background: var(--bg-subtle);
  border-radius: 999px;
  color: var(--ink-muted);
  text-decoration: none;
}
.tag:hover {
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 640px) {
  .article-card {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .article-content-col h3 {
    font-size: 1.25rem;
  }
}

/* ============================================
   Article Page
   ============================================ */

.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--accent);
  z-index: 100;
  width: 0%;
  transition: width 0.05s linear;
}

.article-header {
  padding: var(--space-12) 0 var(--space-8);
  max-width: var(--content-width);
  margin: 0 auto;
}

.article-category {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-4);
  text-decoration: none;
}
.article-category:hover {
  color: var(--accent);
  text-decoration: underline;
}

.article-title {
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  line-height: 1.15;
  margin-bottom: var(--space-6);
}

.article-byline {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--ink-muted);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border);
}
.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}
.author-info {
  display: flex;
  flex-direction: column;
}
.author-name {
  color: var(--ink);
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
}
.author-name:hover { text-decoration: underline; }
.byline-sep {
  color: var(--ink-soft);
}

.article-body {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6) var(--space-16);
  font-size: 18px;
  line-height: 1.75;
}

.article-body p {
  margin-bottom: var(--space-4);
}

.article-body .lead {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ink-muted);
  margin-bottom: var(--space-8);
}

.tldr {
  background: var(--primary-soft);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin: 0 0 var(--space-8) 0;
}
.tldr-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: var(--space-3);
}
.tldr ul {
  margin: 0;
  padding-left: 1.25rem;
}
.tldr li {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: var(--space-2);
}
.tldr li:last-child { margin-bottom: 0; }

/* Info / Warning / Note Boxes */
.callout {
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  display: flex;
  gap: var(--space-4);
  font-size: 16px;
  line-height: 1.6;
}
.callout-icon {
  flex-shrink: 0;
  font-size: 20px;
  line-height: 1.4;
}
.callout-body {
  flex: 1;
}
.callout-body strong {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: 600;
}
.callout-body p:last-child { margin-bottom: 0; }

.callout-info {
  background: var(--info-bg);
  color: var(--info-ink);
}
.callout-info strong { color: var(--info-ink); }

.callout-warning {
  background: var(--warning-bg);
  color: var(--warning-ink);
}
.callout-warning strong { color: var(--warning-ink); }

.callout-success {
  background: var(--success-bg);
  color: var(--success-ink);
}
.callout-success strong { color: var(--success-ink); }

/* Footnotes / Sources */
.sources {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
}
.sources h2 {
  font-size: 1.125rem;
  font-family: var(--font-sans);
  font-weight: 600;
  margin: 0 0 var(--space-4) 0;
}
.sources ol {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.6;
}
.sources li {
  margin-bottom: var(--space-2);
}

/* Author bio after article */
.author-bio {
  margin-top: var(--space-12);
  padding: var(--space-6);
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  display: flex;
  gap: var(--space-4);
}
.author-bio .author-avatar {
  width: 60px;
  height: 60px;
  font-size: 18px;
}
.author-bio-text {
  flex: 1;
}
.author-bio-name {
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--ink);
}
.author-bio-desc {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  margin-top: var(--space-16);
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}
@media (max-width: 720px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 var(--space-3) 0;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li {
  margin-bottom: var(--space-2);
}
.footer-col a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 14px;
}
.footer-col a:hover {
  color: var(--ink);
  text-decoration: underline;
}
.footer-desc {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.6;
  max-width: 320px;
}
.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ============================================
   About Page
   ============================================ */

.about-hero {
  padding: var(--space-16) 0 var(--space-12);
  max-width: var(--content-width);
  margin: 0 auto;
}
.about-hero .eyebrow {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: var(--space-3);
}
.about-content {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-16);
}
.about-content p {
  font-size: 18px;
  line-height: 1.75;
  color: var(--ink);
  margin-bottom: var(--space-4);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
  margin: var(--space-8) 0;
}
.value-card {
  padding: var(--space-4);
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
}
.value-card h4 {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 var(--space-2) 0;
  color: var(--accent);
}
.value-card p {
  font-size: 14px !important;
  line-height: 1.55 !important;
  color: var(--ink-muted);
  margin: 0;
}

/* ============================================
   Impressum / Legal
   ============================================ */

.legal-content h2 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}
.legal-content p {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: var(--space-3);
  color: var(--ink);
}

/* ============================================
   Filter Bar (Blog-Übersicht)
   ============================================ */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border);
}
.filter-bar button {
  padding: 6px 14px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.filter-bar button:hover {
  background: var(--bg-subtle);
  color: var(--ink);
}
.filter-bar button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
@media (prefers-color-scheme: dark) {
  .filter-bar button[aria-pressed="true"] {
    background: var(--ink);
    color: var(--bg);
  }
}

/* Visually hidden – Screenreader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   Bonus / Freischalt-Bereich (pro Beitrag)
   ============================================ */

.bonus {
  margin-top: var(--space-12);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  background: var(--primary-soft);
}

.bonus-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: var(--space-3);
}

.bonus-title {
  font-size: 1.5rem;
  margin: 0 0 var(--space-3) 0;
}

.bonus-intro {
  font-size: 1.0625rem;
  color: var(--ink-muted);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

/* Der freischaltbare Bereich */
.bonus-reveal {
  position: relative;
  border-radius: var(--radius-md);
}

/* Gesperrter Zustand: ausgegraute Fläche mit Schloss-Button */
.bonus-lock {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-3);
  padding: var(--space-12) var(--space-6);
  background: var(--bg-subtle);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
}

.bonus-lock[hidden] {
  display: none;
}

.bonus-lock-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: white;
  background: var(--primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}
.bonus-lock-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}
.bonus-lock-btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.bonus-lock-icon {
  font-size: 16px;
  line-height: 1;
}

.bonus-lock-hint {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
  max-width: 32ch;
  line-height: 1.5;
}

/* Freigeschalteter Inhalt */
.bonus-content {
  font-size: 17px;
  line-height: 1.7;
  animation: bonus-fade-in 0.3s ease;
}
.bonus-content:focus {
  outline: none;
}
.bonus-content > *:last-child {
  margin-bottom: 0;
}

@keyframes bonus-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .bonus-content { animation: none; }
  .bonus-lock-btn:hover { transform: none; }
}

/* ============================================
   Companion Links (LinkedIn / YouTube pro Beitrag)
   ============================================ */

.companion {
  margin-top: var(--space-12);
}

.companion-heading {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--space-4) 0;
}

.companion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}

.companion-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.companion-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -12px rgba(0, 0, 0, 0.25);
  text-decoration: none;
  color: var(--ink);
}

.companion-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  flex-shrink: 0;
  color: #fff;
}
.companion-youtube .companion-icon {
  background: #FF0000;
}
.companion-linkedin .companion-icon {
  background: #0A66C2;
}

.companion-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.companion-label {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
}
.companion-sub {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.4;
}

.companion-arrow {
  color: var(--ink-soft);
  font-size: 18px;
  flex-shrink: 0;
  transition: transform 0.15s ease, color 0.15s ease;
}
.companion-card:hover .companion-arrow {
  color: var(--primary);
  transform: translateX(3px);
}

@media (prefers-reduced-motion: reduce) {
  .companion-card,
  .companion-card:hover { transform: none; }
  .companion-arrow,
  .companion-card:hover .companion-arrow { transform: none; }
}