/* Blog-Styles fuer ki-consulting24.com/blog/
   Farben, Radien, Schatten und Typografie aus dem CSS der Hauptseite uebernommen
   (Tailwind-Klassen: container-custom, btn-primary, rounded-2xl, shadow-md, gray-800-Footer). */
:root {
  --clr-primary: #246888;
  --clr-secondary: #36969c;
  --clr-accent: #41b37a;
  --clr-dark: hsl(215, 25%, 11%);
  --clr-light: hsl(210, 7%, 97%);
  --clr-gray-100: hsl(210, 20%, 95%);
  --clr-gray-200: hsl(214, 32%, 91%);
  --clr-gray-300: hsl(213, 27%, 84%);
  --clr-gray-600: hsl(215, 14%, 34%);
  --clr-gray-700: hsl(215, 25%, 27%);
  --clr-gray-800: hsl(217, 33%, 17%);
  --muted: hsl(215, 16%, 47%);
  --radius: .5rem;
  --radius-2xl: 1rem;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);
  --primary-soft: rgb(36 104 136 / .1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--clr-dark);
  background: #fff;
  line-height: 1.7;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-primary); }
a:hover { color: var(--clr-secondary); }
.fa-solid, .fa-regular, .fa-brands { line-height: 1; }

.container { max-width: 80rem; margin: 0 auto; padding: 0 1rem; }
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

/* ------------------------------------------------------------ Buttons */
.btn-primary, .btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .75rem 1.5rem; border-radius: var(--radius); font-weight: 600; font-size: 1rem;
  text-decoration: none; transition: all .3s; line-height: 1.4;
}
.btn-primary { background: var(--clr-primary); color: #fff !important; box-shadow: var(--shadow-md); }
.btn-primary:hover { background: var(--clr-secondary); transform: translateY(-2px); box-shadow: var(--shadow-xl); }
.btn-outline { background: #fff; color: var(--clr-primary) !important; border: 2px solid var(--clr-primary); padding: calc(.75rem - 2px) calc(1.5rem - 2px); }
.btn-outline:hover { background: var(--clr-primary); color: #fff !important; }

/* ------------------------------------------------------------ Header (wie Hauptseite) */
.site-header { background: #fff; border-bottom: 1px solid var(--clr-gray-200); position: relative; z-index: 50; }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1rem; }
@media (min-width: 640px) { .site-header .bar { padding: 1rem 1.5rem; } }
@media (min-width: 1024px) { .site-header .bar { padding: 1rem 2rem; } }
.logo img { height: 3rem; width: auto; }
.nav { display: none; align-items: center; gap: 2rem; }
.nav ul { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav a, .nav button {
  color: var(--clr-dark); text-decoration: none; font-weight: 500; font-size: 1rem; padding: .5rem 0;
  background: none; border: 0; font-family: inherit; cursor: pointer; transition: color .2s;
  display: inline-flex; align-items: center; gap: .3rem;
}
.nav a:hover, .nav button:hover, .nav a[aria-current] { color: var(--clr-primary); }
.nav a[aria-current] { font-weight: 600; }
.nav .fa-chevron-down { font-size: .7rem; }
.nav .btn-primary { color: #fff; padding: .75rem 1.5rem; background: var(--clr-primary); }
.nav .btn-primary:hover { background: var(--clr-secondary); color: #fff; }
@media (min-width: 1280px) { .nav { display: flex; } .menu-mobile { display: none; } }
@media (min-width: 1024px) and (max-width: 1279px) { .nav { display: flex; gap: 1.25rem; } .nav ul { gap: 1.1rem; } .nav a, .nav button { font-size: .93rem; } .menu-mobile { display: none; } }

.has-menu { position: relative; }
.dropdown {
  position: absolute; top: 100%; left: -1rem; min-width: 21rem; padding: .5rem;
  background: #fff; border: 1px solid var(--clr-gray-200); border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl); opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: all .2s; display: grid;
}
.has-menu:hover .dropdown, .has-menu:focus-within .dropdown { opacity: 1; visibility: visible; transform: none; }
.dropdown a { padding: .6rem .75rem !important; border-radius: var(--radius); font-size: .95rem !important; gap: .75rem !important; }
.dropdown a:hover { background: var(--clr-light); }
.dropdown i { width: 1.25rem; text-align: center; color: var(--clr-primary); }

.menu-mobile summary { list-style: none; cursor: pointer; font-size: 1.4rem; padding: .25rem .5rem; color: var(--clr-dark); }
.menu-mobile summary::-webkit-details-marker { display: none; }
.menu-mobile nav {
  position: absolute; left: 0; right: 0; top: 100%; background: #fff; box-shadow: var(--shadow-xl);
  border-bottom: 1px solid var(--clr-gray-200); padding: .5rem 0 1rem; display: grid;
}
.menu-mobile nav a { color: var(--clr-dark); text-decoration: none; padding: .9rem 1rem; border-bottom: 1px solid var(--clr-gray-100); }
.menu-mobile nav a.sub { padding-left: 2rem; font-size: .95rem; color: var(--clr-gray-600); }
.menu-mobile nav a[aria-current] { color: var(--clr-primary); font-weight: 600; }
.menu-mobile nav .btn-primary { margin: 1rem 1rem 0; border: 0; }

/* ------------------------------------------------------------ Bausteine */
.chip {
  display: inline-flex; align-items: center; gap: .45rem; padding: .35rem .85rem; border-radius: 999px;
  background: var(--primary-soft); color: var(--clr-primary); font-size: .85rem; font-weight: 600;
}
.icon-circle {
  display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto;
  width: 3.5rem; height: 3.5rem; border-radius: 50%; background: var(--clr-primary); color: #fff; font-size: 1.35rem;
}
.icon-circle.small { width: 2.5rem; height: 2.5rem; font-size: 1rem; }
.avatar {
  display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto;
  width: 2.75rem; height: 2.75rem; border-radius: 50%; background: var(--clr-primary); color: #fff; font-weight: 700; font-size: .95rem;
}
.avatar.large { width: 4rem; height: 4rem; font-size: 1.2rem; }
img.avatar { display: block; object-fit: cover; background: var(--clr-light); }

/* ------------------------------------------------------------ Hero (hell wie Startseite) */
.hero { background: var(--clr-light); padding: 3.5rem 0 3rem; }
@media (min-width: 768px) { .hero { padding: 5rem 0 4rem; } }
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem); line-height: 1.15; font-weight: 700; letter-spacing: -.02em;
  margin: 1.1rem 0 1.25rem; max-width: 52rem; color: var(--clr-dark);
}
.hero h1 .accent { color: var(--clr-primary); }
.hero .lead { font-size: clamp(1.1rem, 2vw, 1.3rem); line-height: 1.6; color: var(--clr-gray-700); max-width: 46rem; margin: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; font-size: .9rem; color: var(--muted); margin-bottom: 1.25rem; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--clr-primary); }
.breadcrumb i { font-size: .6rem; }
.byline { display: flex; align-items: center; gap: .85rem; margin-top: 2rem; font-size: .95rem; color: var(--muted); line-height: 1.45; }
.byline strong { color: var(--clr-dark); }
.topics { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 2rem; }
.topic {
  display: inline-flex; align-items: center; gap: .5rem; padding: .5rem 1rem; border-radius: 999px;
  background: #fff; border: 1px solid var(--clr-gray-200); font-size: .9rem; font-weight: 500; color: var(--clr-gray-700);
}
.topic i { color: var(--clr-primary); }

/* ------------------------------------------------------------ Artikel */
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 3rem; padding: 3.5rem 0 4.5rem; }
@media (min-width: 1024px) { .article-grid { grid-template-columns: minmax(0, 1fr) 19rem; gap: 4rem; } }
.prose { max-width: 46rem; color: var(--clr-gray-700); }
.prose, .hero h1, .card h2, .card h3 { overflow-wrap: break-word; }
@media (max-width: 640px) { .prose, .hero h1 { hyphens: auto; } }
.prose h2 { font-size: clamp(1.45rem, 2.6vw, 1.85rem); line-height: 1.3; font-weight: 700; letter-spacing: -.01em; margin: 3rem 0 1rem; color: var(--clr-dark); scroll-margin-top: 1.5rem; }
.prose h3 { font-size: 1.25rem; font-weight: 700; margin: 2.25rem 0 .75rem; color: var(--clr-dark); }
.prose h4 { font-size: 1.05rem; font-weight: 600; margin: 1.5rem 0 .5rem; color: var(--clr-dark); }
.prose p, .prose ul, .prose ol { margin: 0 0 1.25rem; }
.prose strong { color: var(--clr-dark); }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin-bottom: .5rem; padding-left: .25rem; }
.prose ul li::marker { color: var(--clr-primary); }
.prose ol li::marker { color: var(--clr-primary); font-weight: 700; }
.prose blockquote {
  margin: 2rem 0; padding: 1.5rem 1.75rem; background: var(--clr-light); border-radius: var(--radius-2xl);
  border-left: 4px solid var(--clr-accent); font-style: italic; font-size: 1.1rem; color: var(--clr-dark);
}
.prose blockquote p { margin: 0; }
.prose hr { border: 0; border-top: 1px solid var(--clr-gray-200); margin: 3rem 0; }
.prose code { background: var(--clr-gray-100); padding: .1rem .35rem; border-radius: .25rem; font-size: .92em; }
.table-wrap { overflow-x: auto; margin: 1.5rem 0 2rem; border: 1px solid var(--clr-gray-200); border-radius: var(--radius-2xl); box-shadow: var(--shadow-sm); }
.prose table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.prose th, .prose td { padding: .85rem 1rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--clr-gray-200); }
.prose tr:last-child td { border-bottom: 0; }
.prose th { background: var(--clr-light); color: var(--clr-dark); font-weight: 600; }
.prose tbody tr:hover { background: #fbfcfd; }

.summary {
  display: flex; gap: 1rem; align-items: flex-start; background: #fff; border: 1px solid var(--clr-gray-200);
  border-radius: var(--radius-2xl); padding: 1.5rem; margin-bottom: 2.5rem; box-shadow: var(--shadow-md);
}
.summary .label, .author-box .label {
  display: block; color: var(--clr-primary); text-transform: uppercase; letter-spacing: .06em; font-size: .78rem; font-weight: 700; margin-bottom: .35rem;
}
.summary p { margin: 0; color: var(--clr-dark); }

.cta-box {
  background: linear-gradient(180deg, hsl(210, 20%, 97%) 0%, hsl(214, 32%, 93%) 100%);
  border: 1px solid var(--clr-gray-200); border-radius: var(--radius-2xl); padding: 2.25rem; margin: 3.5rem 0; box-shadow: var(--shadow-md);
}
.cta-box h2 { margin: 1rem 0 .5rem !important; font-size: 1.5rem; color: var(--clr-dark); }
.cta-box p { margin: 0 0 1.5rem; color: var(--clr-gray-700); }
.cta-box .actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.cta-box.center { text-align: center; max-width: 52rem; margin: 0 auto; background: #fff; }
.cta-box.center p { max-width: 38rem; margin-left: auto; margin-right: auto; }
.cta-box.center .actions { justify-content: center; }

.faq h2 { margin-top: 3rem; }
.faq details {
  background: #fff; border: 1px solid var(--clr-gray-200); border-radius: var(--radius-2xl);
  margin-bottom: .75rem; box-shadow: var(--shadow-sm); transition: box-shadow .2s;
}
.faq details[open] { box-shadow: var(--shadow-md); }
.faq summary {
  cursor: pointer; font-weight: 600; color: var(--clr-dark); padding: 1.1rem 3rem 1.1rem 1.25rem;
  list-style: none; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 1.25rem; top: 50%; transform: translateY(-50%);
  font-size: 1.4rem; font-weight: 400; color: var(--clr-primary); transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { margin: 0; padding: 0 1.25rem 1.25rem; }

.author-box {
  display: flex; gap: 1.25rem; align-items: flex-start; background: var(--clr-light);
  border-radius: var(--radius-2xl); padding: 1.75rem; margin-top: 3.5rem;
}
.author-box strong { color: var(--clr-dark); }
.author-box p { margin: .5rem 0 .75rem; font-size: .95rem; }
.author-box .linkedin { display: inline-flex; align-items: center; gap: .45rem; font-weight: 600; text-decoration: none; font-size: .95rem; }
.author-box .linkedin i { font-size: 1.15rem; }

/* ------------------------------------------------------------ Seitenleiste */
.sidebar .sticky { position: sticky; top: 1.5rem; display: grid; gap: 1.5rem; }
.toc, .side-cta { background: #fff; border: 1px solid var(--clr-gray-200); border-radius: var(--radius-2xl); padding: 1.5rem; box-shadow: var(--shadow-md); }
.toc h2 { display: flex; align-items: center; gap: .5rem; font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 1rem; }
.toc ol { margin: 0; padding-left: 1.2rem; font-size: .93rem; line-height: 1.45; }
.toc li { margin-bottom: .6rem; }
.toc li::marker { color: var(--clr-primary); font-weight: 600; }
.toc a { color: var(--clr-gray-700); text-decoration: none; }
.toc a:hover { color: var(--clr-primary); }
.side-cta { background: linear-gradient(180deg, hsl(210, 20%, 97%) 0%, hsl(214, 32%, 93%) 100%); }
.side-cta h2 { font-size: 1.05rem; margin: .9rem 0 .4rem; color: var(--clr-dark); }
.side-cta p { font-size: .93rem; margin: 0 0 1.1rem; color: var(--clr-gray-700); line-height: 1.5; }
.side-cta .btn-primary { width: 100%; font-size: .95rem; }
@media (max-width: 1023px) { .toc { display: none; } }

/* ------------------------------------------------------------ Karten (wie "Unsere KI-Loesungen") */
.cards { display: grid; gap: 2rem; }
@media (min-width: 768px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .cards.three { grid-template-columns: repeat(3, 1fr); } }
.card {
  display: flex; flex-direction: column; border-radius: var(--radius-2xl); overflow: hidden; text-decoration: none; color: inherit;
  border: 1px solid var(--clr-gray-100); box-shadow: var(--shadow-md); transition: all .3s;
  background: linear-gradient(180deg, hsl(210, 40%, 96%) 0%, hsl(214, 32%, 91%) 100%);
}
.card:hover { transform: translateY(-.5rem); box-shadow: var(--shadow-xl); color: inherit; }
.card-cover {
  position: relative; height: 9.5rem; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 1.25rem;
  background:
    radial-gradient(circle at 20% 20%, rgb(65 179 122 / .18), transparent 45%),
    radial-gradient(circle at 85% 80%, rgb(54 150 156 / .22), transparent 50%),
    #fff;
  border-bottom: 1px solid var(--clr-gray-200);
}
.card-cover .icon-circle { width: 4.25rem; height: 4.25rem; font-size: 1.6rem; box-shadow: 0 10px 20px -6px rgb(36 104 136 / .45); transition: transform .3s; }
.card:hover .card-cover .icon-circle { transform: scale(1.08); }
.card-cover .chip { position: absolute; left: 1rem; top: 1rem; background: #fff; border: 1px solid var(--clr-gray-200); font-size: .75rem; }
.card-body { display: flex; flex-direction: column; flex: 1; padding: 1.5rem; }
.card h2, .card h3 { font-size: 1.2rem; line-height: 1.35; font-weight: 700; margin: 0 0 .75rem; color: var(--clr-dark); }
.card p { margin: 0 0 1.25rem; color: var(--clr-gray-700); font-size: .96rem; line-height: 1.6; flex: 1; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-size: .85rem; }
.card .meta { color: var(--muted); display: inline-flex; align-items: center; gap: .4rem; }
.card .more { color: var(--clr-primary); font-weight: 600; display: inline-flex; align-items: center; gap: .4rem; white-space: nowrap; }
.card:hover .more i { transform: translateX(3px); }
.card .more i { transition: transform .2s; }

.list-section { padding: 4rem 0; }
.related { background: var(--clr-light); padding: 4.5rem 0; }
.related h2 { margin: 0 0 2rem; font-size: clamp(1.6rem, 3vw, 2.25rem); font-weight: 700; text-align: center; }
.index-cta { background: var(--clr-light); padding: 4.5rem 0; }

/* ------------------------------------------------------------ Footer (wie Hauptseite) */
.site-footer { background: var(--clr-gray-800); color: #fff; padding: 3rem 0; font-size: .875rem; line-height: 1.5; }
.site-footer .cols { display: grid; gap: 2rem; margin-bottom: 2rem; }
@media (min-width: 768px) { .site-footer .cols { grid-template-columns: repeat(4, 1fr); } }
.site-footer h3, .site-footer .brand { display: block; font-size: 1rem; font-weight: 600; margin: 0 0 1rem; color: #fff; text-decoration: none; }
.site-footer a { display: block; color: #d1d5db; text-decoration: none; margin-bottom: .5rem; }
.site-footer a:hover { color: #fff; }
.site-footer p { color: #d1d5db; margin: 0 0 .5rem; }
.site-footer .bottom { border-top: 1px solid #374151; padding-top: 1rem; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; }
.site-footer .bottom p { color: #9ca3af; margin: 0; }
.site-footer .legal { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.site-footer .legal a { color: #9ca3af; margin: 0; }
.site-footer .legal a:hover { color: #fff; }

/* Schwebender Kontakt-Button wie auf der Hauptseite */
.float-contact {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 40; display: inline-flex; align-items: center; gap: .5rem;
  background: var(--clr-primary); color: #fff; padding: .8rem 1.25rem; border-radius: 999px; font-weight: 600;
  text-decoration: none; box-shadow: var(--shadow-xl); transition: all .3s;
}
.float-contact:hover { background: var(--clr-secondary); color: #fff; transform: translateY(-2px); }