:root {
  --primary: #6366f1; /* Indigo 500 */
  --primary-hover: #4f46e5; /* Indigo 600 */
  --accent: #8b5cf6; /* Violet 500 */
  --bg: #fdfdff;
  --card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --muted: #64748b; /* Alias, von den Artikelseiten genutzt */
  --border: #e2e8f0;
  --success: #10b981;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
  --radius: 0.75rem;
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  margin: 0;
  background: var(--bg);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.03) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(139, 92, 246, 0.03) 0px, transparent 50%);
  color: var(--text);
  overflow-x: hidden;
}

/* ── Site Navigation ── */
.site-nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.92);
}
.site-nav .logo {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}
.site-nav .nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.site-nav .nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.site-nav .nav-links a:hover,
.site-nav .nav-links a.active {
  color: var(--primary);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text);
  padding: 0.25rem;
}
@media (max-width: 700px) {
  .nav-toggle { display: block; }
  .site-nav .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    gap: 0.75rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }
  .site-nav .nav-links.open { display: flex; }
}

header {
  text-align: center;
  padding: 4rem 1rem 2rem;
  position: relative;
}

header h1 {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

header p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
  font-weight: 500;
}

header .steps {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

header .steps ol {
  list-style: none;
  display: flex;
  gap: 2rem;
  padding: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
}

header .steps li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

header .steps li::before {
  content: attr(data-step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  border-radius: 50%;
  font-size: 0.75rem;
}

.container {
  max-width: 1100px;
  margin: 2rem auto 4rem;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
}

@media (max-width: 900px) {
  .container { grid-template-columns: 1fr; }
  header .steps ol { flex-direction: column; gap: 0.5rem; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.upload-box {
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius);
  padding: 3rem 1.5rem;
  text-align: center;
  background: #f8fafc;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.upload-box:hover {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.05);
  transform: translateY(-2px);
}

.upload-box p { margin: 0.5rem 0; font-weight: 500; }

.button-like {
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  display: inline-block;
  margin-top: 1rem;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.button-like:hover {
  background: var(--primary-hover);
  transform: scale(1.02);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
}

.meta { font-size: 0.85rem; color: var(--text-muted); }

.field { margin-top: 1.5rem; }
.field label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--text); }

.field input, .field select {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.inline {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.8rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.inline input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.actions { margin-top: 2rem; display: flex; gap: 0.75rem; flex-wrap: wrap; }

.btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 0.8rem 1.6rem;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn.secondary {
  background: #f1f5f9;
  color: #334155;
}

.btn.secondary:hover:not(:disabled) {
  background: #e2e8f0;
  box-shadow: none;
}

.success {
  background: #ecfdf5;
  border-left: 4px solid var(--success);
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: 1.5rem;
  display: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: #065f46;
}

.preview-box {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-box img { max-width: 100%; border-radius: 0.5rem; box-shadow: var(--shadow); }

/* ── Content sections ── */
.content-section {
  max-width: 1100px;
  margin: 0 auto 4rem;
  padding: 0 1.5rem;
}

.content-section h2 { 
  font-family: 'Outfit', sans-serif;
  font-size: 1.75rem; 
  font-weight: 700;
  margin-bottom: 1.25rem; 
  color: var(--text);
  letter-spacing: -0.02em;
}

.content-section p { font-size: 1.05rem; line-height: 1.7; color: var(--text-muted); }

/* FAQ accordion */
.faq-list { list-style: none; padding: 0; }
.faq-item { 
  background: #fff;
  border: 1px solid var(--border); 
  border-radius: var(--radius); 
  margin-bottom: 1rem; 
  overflow: hidden; 
  transition: all 0.2s ease;
}
.faq-item:hover { border-color: var(--primary); }

.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::after { content: "+"; font-size: 1.4rem; color: var(--primary); }
.faq-item[open] summary::after { content: "−"; }

.faq-answer { padding: 0 1.5rem 1.5rem; color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }

/* Table */
.format-table-wrapper { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
.format-table { width: 100%; border-collapse: collapse; min-width: 500px; }
.format-table th { background: #f8fafc; padding: 1rem; text-align: left; font-size: 0.9rem; font-weight: 700; color: #475569; }
.format-table td { padding: 1rem; border-top: 1px solid var(--border); font-size: 0.95rem; }

/* Use-cases */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.usecase-card { 
  background: #fff; 
  border: 1px solid var(--border); 
  border-radius: var(--radius); 
  padding: 1.5rem;
  transition: all 0.3s ease;
}
.usecase-card:hover { transform: translateY(-5px); border-color: var(--primary); box-shadow: var(--shadow-lg); }
.usecase-card .icon { font-size: 2rem; margin-bottom: 1rem; display: block; }
.usecase-card strong { display: block; font-size: 1.1rem; margin-bottom: 0.5rem; font-family: 'Outfit', sans-serif; }
.usecase-card p { font-size: 0.95rem; margin: 0; }

/* Trust bar */
.trust-bar { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-top: 2rem; border-top: 1px solid var(--border); padding-top: 1.5rem; }
.trust-bar span { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; font-weight: 600; color: var(--primary); }

footer {
  background: #f8fafc;
  padding: 4rem 1rem;
  text-align: center;
  border-top: 1px solid var(--border);
}
footer a { color: var(--primary); text-decoration: none; font-weight: 600; }
footer p { margin-top: 1rem; font-size: 0.9rem; color: var(--text-muted); }


/* ── Artikelseiten (aus den bisherigen Inline-Styles zusammengeführt) ── */
:root { --primary:#6366f1; --accent:#8b5cf6; --bg:#fdfdff; --card:#fff; --text:#1e293b; --muted:#64748b; --border:#e2e8f0; --radius:0.75rem; --success:#10b981; }
* { box-sizing:border-box; -webkit-font-smoothing:antialiased; }
.site-nav .nav-links a:hover,.site-nav .nav-links a.active { color:var(--primary); }
.hero { text-align:center; padding:4rem 1.5rem 2.5rem; }
.hero h1 { font-family:'Outfit',sans-serif; font-size:clamp(2rem,4.5vw,2.8rem); font-weight:800; letter-spacing:-.03em; background:linear-gradient(135deg,var(--primary),var(--accent)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; margin:0 0 .75rem; line-height:1.15; }
.hero p { color:var(--muted); max-width:650px; margin:0 auto; font-size:1.1rem; }
.content { max-width:850px; margin:0 auto 4rem; padding:0 1.5rem; }
.content h2 { font-family:'Outfit',sans-serif; font-size:1.6rem; font-weight:700; margin:3rem 0 1rem; color:var(--text); }
.content h3 { font-family:'Outfit',sans-serif; font-size:1.2rem; font-weight:600; margin:2rem 0 .75rem; }
.content p { color:#475569; margin:.5rem 0 1rem; }
.content ul,.content ol { color:#475569; padding-left:1.5rem; }
.content li { margin-bottom:.5rem; }
.step-card { background:var(--card); border:1px solid var(--border); border-radius:1.25rem; padding:2rem; margin:1.5rem 0; box-shadow:0 10px 15px -3px rgba(0,0,0,.04); position:relative; }
.step-card .step-num { position:absolute; top:-14px; left:24px; background:var(--primary); color:#fff; width:32px; height:32px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-weight:700; font-size:.9rem; box-shadow:0 4px 8px rgba(99,102,241,.25); }
.step-card h3 { margin-top:.5rem; }
.tip-box { background:#f0fdf4; border-left:4px solid var(--success); border-radius:var(--radius); padding:1.25rem 1.5rem; margin:1.5rem 0; }
.tip-box strong { color:#065f46; }
.tip-box p { color:#047857; margin:.25rem 0 0; }
.warn-box { background:#fffbeb; border-left:4px solid #f59e0b; border-radius:var(--radius); padding:1.25rem 1.5rem; margin:1.5rem 0; }
.warn-box strong { color:#92400e; }
.warn-box p { color:#a16207; margin:.25rem 0 0; }
.scenario-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:1.5rem; margin:2rem 0; }
.scenario-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1.5rem; transition:all .3s ease; }
.scenario-card:hover { transform:translateY(-4px); border-color:var(--primary); box-shadow:0 12px 24px rgba(99,102,241,.08); }
.scenario-card .icon { font-size:2rem; margin-bottom:.75rem; display:block; }
.scenario-card strong { display:block; font-size:1.05rem; margin-bottom:.4rem; font-family:'Outfit',sans-serif; }
.scenario-card p { font-size:.93rem; margin:0; color:var(--muted); }
.cta-box { background:linear-gradient(135deg,rgba(99,102,241,.06),rgba(139,92,246,.06)); border:1px solid rgba(99,102,241,.15); border-radius:1.25rem; padding:2rem; text-align:center; margin:3rem 0; }
.cta-box a { display:inline-block; background:var(--primary); color:#fff; padding:.8rem 2rem; border-radius:var(--radius); font-weight:600; text-decoration:none; transition:all .2s; }
.cta-box a:hover { background:#4f46e5; transform:translateY(-2px); box-shadow:0 6px 16px rgba(99,102,241,.25); }
:root { --primary:#6366f1; --accent:#8b5cf6; --bg:#fdfdff; --card:#fff; --text:#1e293b; --muted:#64748b; --border:#e2e8f0; --radius:0.75rem; }
.content h2 { font-family:'Outfit',sans-serif; font-size:1.6rem; font-weight:700; margin:3rem 0 1rem; color:var(--text); letter-spacing:-.02em; }
.content h3 { font-family:'Outfit',sans-serif; font-size:1.25rem; font-weight:600; margin:2rem 0 .75rem; color:var(--text); }
.card-block { background:var(--card); border:1px solid var(--border); border-radius:1.25rem; padding:2rem; margin:2rem 0; box-shadow:0 10px 15px -3px rgba(0,0,0,.04); }
.format-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:1.5rem; margin:2rem 0; }
.format-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1.5rem; transition:all .3s ease; }
.format-card:hover { transform:translateY(-4px); border-color:var(--primary); box-shadow:0 12px 24px rgba(99,102,241,.08); }
.format-card .icon { font-size:2rem; margin-bottom:.75rem; display:block; }
.format-card strong { display:block; font-size:1.1rem; margin-bottom:.4rem; font-family:'Outfit',sans-serif; }
.format-card p { font-size:.93rem; margin:0; color:var(--muted); }
.compare-table { width:100%; border-collapse:collapse; margin:1.5rem 0; min-width:600px; }
.compare-table th { background:#f8fafc; padding:1rem; text-align:left; font-size:.88rem; font-weight:700; color:#475569; border-bottom:2px solid var(--border); }
.compare-table td { padding:.85rem 1rem; border-bottom:1px solid var(--border); font-size:.93rem; }
.compare-table tr:hover td { background:rgba(99,102,241,.02); }
.table-wrap { overflow-x:auto; border-radius:var(--radius); border:1px solid var(--border); }
.tip-box { background:#f0fdf4; border-left:4px solid #10b981; border-radius:var(--radius); padding:1.25rem 1.5rem; margin:1.5rem 0; }
.content code { background:#f1f5f9; padding:.15rem .4rem; border-radius:4px; font-size:.9rem; color:#7c3aed; }
.content pre { background:#1e293b; color:#e2e8f0; padding:1.25rem 1.5rem; border-radius:var(--radius); overflow-x:auto; font-size:.88rem; line-height:1.5; margin:1rem 0 1.5rem; }
.content pre code { background:transparent; color:inherit; padding:0; }
.stat-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:1.25rem; margin:2rem 0; }
.stat-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1.25rem; text-align:center; transition:all .3s ease; }
.stat-card:hover { transform:translateY(-3px); border-color:var(--primary); box-shadow:0 8px 20px rgba(99,102,241,.08); }
.stat-card .num { font-family:'Outfit',sans-serif; font-size:2rem; font-weight:800; background:linear-gradient(135deg,var(--primary),var(--accent)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; display:block; }
.stat-card .label { font-size:.85rem; color:var(--muted); font-weight:500; margin-top:.25rem; }
.checklist { list-style:none; padding:0; }
.checklist li { padding:.75rem 1rem; border:1px solid var(--border); border-radius:var(--radius); margin-bottom:.5rem; font-size:.95rem; background:var(--card); display:flex; align-items:flex-start; gap:.75rem; }
.checklist li::before { content:"✓"; color:var(--success); font-weight:700; font-size:1.1rem; flex-shrink:0; margin-top:.05rem; }
.content ul { color:#475569; padding-left:1.5rem; }
.value-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:1.5rem; margin:2rem 0; }
.value-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1.5rem; transition:all .3s ease; }
.value-card:hover { transform:translateY(-4px); border-color:var(--primary); box-shadow:0 12px 24px rgba(99,102,241,.08); }
.value-card .icon { font-size:2rem; margin-bottom:.75rem; display:block; }
.value-card strong { display:block; font-size:1.05rem; margin-bottom:.4rem; font-family:'Outfit',sans-serif; }
.value-card p { font-size:.93rem; margin:0; color:var(--muted); }
.timeline { position:relative; padding-left:2rem; margin:2rem 0; }
.timeline::before { content:''; position:absolute; left:7px; top:0; bottom:0; width:2px; background:linear-gradient(180deg,var(--primary),var(--accent)); border-radius:2px; }
.timeline-item { position:relative; margin-bottom:2rem; }
.timeline-item::before { content:''; position:absolute; left:-2rem; top:.45rem; width:16px; height:16px; border-radius:50%; background:var(--primary); border:3px solid var(--bg); box-shadow:0 0 0 2px var(--primary); }
.timeline-item h3 { margin-top:0; }
.tech-list { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:1rem; margin:1.5rem 0; list-style:none; padding:0; }
.tech-list li { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1rem 1.25rem; font-size:.93rem; display:flex; align-items:flex-start; gap:.75rem; }
.tech-list li strong { display:block; margin-bottom:.15rem; }
.tech-list li span.label { color:var(--muted); font-size:.88rem; }

/* ── Nur Artikelseiten: Werte aus den früheren Inline-Styles ── */
.page-article { line-height: 1.7; }
.page-article footer { padding: 3rem 1rem; font-size: .9rem; color: var(--muted); }
.content h3 { font-size: 1.2rem; margin: 2rem 0 .75rem; }