/* Ratgeber (Blog) – heller Enterprise-Look, geteilt von Index + Artikeln */
:root {
  --rg-bg: #ffffff;
  --rg-text: #0f172a;
  --rg-secondary: #475467;
  --rg-muted: #667085;
  --rg-border: #e4e7ec;
  --rg-accent: #059669;
  --rg-surface: #f8fafc;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--rg-bg); color: var(--rg-text); -webkit-font-smoothing: antialiased; }
a { color: var(--rg-accent); }
.rg-nav { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,0.85); backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--rg-border); }
.rg-nav-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; }
.rg-logo { font-size: 20px; font-weight: 800; letter-spacing: -0.02em; color: var(--rg-text); text-decoration: none; }
.rg-logo .ai { color: var(--rg-accent); }
.rg-cta { font-size: 14px; font-weight: 600; color: #fff; background: var(--rg-accent); padding: 8px 16px; border-radius: 8px; text-decoration: none; }

.rg-wrap { max-width: 760px; margin: 0 auto; padding: 40px 24px 72px; }
.rg-wrap.wide { max-width: 1000px; }
.rg-crumbs { font-size: 13px; color: var(--rg-muted); margin-bottom: 20px; }
.rg-crumbs a { color: var(--rg-muted); }

.rg-article h1 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 12px; }
.rg-meta { font-size: 13px; color: var(--rg-muted); margin-bottom: 28px; }
.rg-lead { font-size: 18px; line-height: 1.6; color: var(--rg-secondary); margin-bottom: 28px; }
.rg-article h2 { font-size: 23px; font-weight: 700; letter-spacing: -0.01em; margin: 36px 0 12px; }
.rg-article h3 { font-size: 18px; font-weight: 700; margin: 26px 0 8px; }
.rg-article p, .rg-article li { font-size: 16px; line-height: 1.75; color: var(--rg-secondary); }
.rg-article ul, .rg-article ol { padding-left: 22px; margin: 10px 0; }
.rg-article li { margin-bottom: 6px; }
.rg-article strong { color: var(--rg-text); }
.rg-article table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; }
.rg-article th, .rg-article td { text-align: left; padding: 10px 12px; border: 1px solid var(--rg-border); }
.rg-article th { background: var(--rg-surface); font-weight: 700; color: var(--rg-text); }
.rg-callout { background: var(--rg-surface); border: 1px solid var(--rg-border); border-left: 3px solid var(--rg-accent); border-radius: 10px; padding: 16px 18px; margin: 24px 0; font-size: 15px; line-height: 1.65; color: var(--rg-secondary); }

.rg-productcta { margin-top: 44px; background: linear-gradient(135deg, rgba(5,150,105,0.08), rgba(37,99,235,0.05)); border: 1px solid rgba(5,150,105,0.22); border-radius: 14px; padding: 28px 26px; }
.rg-productcta h3 { margin: 0 0 8px; font-size: 20px; font-weight: 800; color: var(--rg-text); }
.rg-productcta p { margin: 0 0 16px; font-size: 15px; color: var(--rg-secondary); line-height: 1.6; }
.rg-btn { display: inline-block; font-size: 15px; font-weight: 600; color: #fff; background: var(--rg-accent); padding: 11px 22px; border-radius: 10px; text-decoration: none; }

.rg-hero { text-align: center; padding: 24px 0 8px; }
.rg-hero h1 { font-size: clamp(30px, 5vw, 44px); font-weight: 800; letter-spacing: -0.02em; margin: 0 0 10px; }
.rg-hero p { font-size: 17px; color: var(--rg-secondary); max-width: 600px; margin: 0 auto; line-height: 1.6; }
.rg-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 40px; }
.rg-card { display: block; border: 1px solid var(--rg-border); border-radius: 14px; padding: 24px; text-decoration: none; color: inherit; transition: box-shadow .2s, transform .2s; background: #fff; }
.rg-card:hover { box-shadow: 0 12px 28px rgba(16,24,40,0.10); transform: translateY(-2px); }
.rg-card .tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--rg-accent); }
.rg-card h2 { font-size: 19px; font-weight: 700; line-height: 1.3; margin: 8px 0 8px; color: var(--rg-text); }
.rg-card p { font-size: 14px; color: var(--rg-secondary); line-height: 1.6; margin: 0; }

.rg-foot { border-top: 1px solid var(--rg-border); padding: 28px 24px; text-align: center; font-size: 13px; color: var(--rg-muted); }
.rg-foot a { color: var(--rg-muted); margin: 0 8px; }
@media (max-width: 640px) { .rg-grid { grid-template-columns: 1fr; } }