:root {
  --bg:#FFFFFF;--accent:#B00C2F;--accent-bright:#D30E38;--text:#222222;--text-sec:#333333;--text-muted:#999999;--border:#DDDDDD;--white:#FFFFFF;--gray-light:#F5F5F5;
  --font-sans:'General Sans','Arial',sans-serif;--font-mono:'JetBrains Mono',monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text-sec);font-family:var(--font-sans);font-size:1.125rem;line-height:1.5;overflow-x:hidden}
img{max-width:100%;display:block}a{text-decoration:none;color:inherit}

.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:0;max-width:1440px;margin:0 auto;padding:0 32px}
.label{font-family:var(--font-mono);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.2em;color:var(--text-muted);line-height:1.4}
.sidebar-label{grid-column:1/4;padding-top:80px;padding-right:32px;position:sticky;top:128px;align-self:start;display:flex;flex-direction:column;gap:16px}
.sidebar-label .icon-square{width:16px;height:16px;background:var(--text);display:block}
.icon-square{cursor:pointer;transition:background .3s ease;position:relative}
.icon-square:hover{background:var(--accent)}
.icon-square::after{content:'↑ Übersicht';position:absolute;left:24px;top:50%;transform:translateY(-50%);font-family:var(--font-mono);font-size:.6rem;letter-spacing:.08em;color:var(--accent);white-space:nowrap;opacity:0;transition:opacity .3s ease;pointer-events:none}
.icon-square:hover::after{opacity:1}
.main-content{grid-column:4/13;border-left:1px solid var(--border);padding-left:48px}
.section-border{border-bottom:1px solid var(--border)}
.accent{color:var(--accent)}

.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s cubic-bezier(.4,0,.2,1),transform .6s cubic-bezier(.4,0,.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-d1{transition-delay:.1s}.reveal-d2{transition-delay:.2s}.reveal-d3{transition-delay:.3s}
.scroll-progress{position:fixed;top:0;left:0;height:2px;background:var(--accent);z-index:200;width:0;transition:none}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--bg);border-bottom:1px solid var(--border);padding:0 32px;height:140px;display:flex;align-items:center;justify-content:space-between}
.nav__logo{display:flex;align-items:center;flex-shrink:0}
.nav__logo img{height:120px;width:auto;display:block}
.nav__links{display:flex;gap:32px;list-style:none;align-items:center}
.nav__links a{font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--text);position:relative;padding-bottom:2px;transition:color .3s linear}
.nav__links a::after{content:'';position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s linear}
.nav__links a:hover::after,.nav__links a.active::after{transform:scaleX(1)}.nav__links a.active::after{background:var(--text-sec)}
.nav__links a:hover{color:var(--accent)}.nav__links a.active{color:var(--text-sec)}
.nav__burger{display:none;flex-direction:column;gap:6px;cursor:pointer;padding:8px;background:none;border:none;z-index:101}
.nav__burger span{display:block;width:24px;height:2px;background:var(--text);transition:all .3s linear}
.nav__burger.open span:nth-child(1){transform:rotate(45deg) translate(5px,6px)}
.nav__burger.open span:nth-child(2){opacity:0}
.nav__burger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-6px)}
.nav__mobile{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg);z-index:99;flex-direction:column;align-items:center;justify-content:center;gap:32px;list-style:none}
.nav__mobile.open{display:flex}
.nav__mobile a{font-family:var(--font-sans);font-size:1.5rem;font-weight:700;color:var(--text);transition:color .3s linear}
.nav__mobile a:hover{color:var(--accent)}

/* HERO */
.hero{min-height:100vh;padding-top:160px;padding-bottom:80px;display:flex;align-items:center}
.hero .grid-12{width:100%;align-items:center}
.hero__sidebar{grid-column:1/4;border-right:1px solid var(--border);padding-right:32px;padding-bottom:24px;display:flex;flex-direction:column;gap:16px;align-self:center}
.hero__main{grid-column:4/13;padding-left:48px;position:relative}
.hero__headline{font-family:var(--font-sans);font-weight:900;font-size:clamp(4rem,10vw,9rem);line-height:.85;letter-spacing:-.04em;color:var(--text);margin-bottom:64px}
.hero__headline .accent{color:var(--accent)}
.hero__sub{display:grid;grid-template-columns:400px 1fr;gap:48px;align-items:end}
.hero__desc{font-size:1.25rem;color:var(--text-sec);line-height:1.6}
.hero__desc strong{color:var(--text);font-weight:600}

/* SECTION HEADLINE */
.section-headline{font-family:var(--font-sans);font-weight:900;font-size:clamp(2rem,5vw,3.5rem);line-height:.95;letter-spacing:-.03em;color:var(--text);margin-bottom:48px}
.section-headline .accent{color:var(--accent)}

/* FEATURED ARTICLE */
.featured-article{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.featured-visual{aspect-ratio:4/3;background:var(--gray-light);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.featured-visual > div{text-align:center}
.featured-visual__label{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);margin-bottom:12px}
.featured-visual__text{font-family:var(--font-sans);font-weight:900;font-size:clamp(2rem,4vw,4rem);line-height:.9;letter-spacing:-.03em;color:var(--border)}
.featured-body{display:flex;flex-direction:column;gap:16px}
.featured-tag{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.featured-article__title{font-family:var(--font-sans);font-weight:900;font-size:clamp(1.5rem,3vw,2.5rem);line-height:1;letter-spacing:-.03em;color:var(--text)}
.featured-excerpt{font-size:1rem;color:var(--text-sec);line-height:1.7}
.featured-meta{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;color:var(--text-muted)}
.featured-link{font-family:var(--font-sans);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);display:inline-flex;align-items:center;gap:8px;transition:gap .3s linear}
.featured-link:hover{gap:16px}

/* FILTER ROW */
.filter-row{display:flex;gap:12px;margin-bottom:48px;flex-wrap:wrap}
.filter-btn{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;padding:8px 20px;background:transparent;border:1px solid var(--border);cursor:pointer;transition:all .2s ease;color:var(--text-muted)}
.filter-btn:hover{border-color:var(--text);color:var(--text)}
.filter-btn.active{background:var(--text);color:var(--white);border-color:var(--text)}

/* ARTICLE CARDS GRID */
.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin-bottom:80px}
.article-card{display:flex;flex-direction:column;border:1px solid var(--border);transition:all .3s ease;text-decoration:none}
.article-card:hover{border-color:var(--text);transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.06)}
.article-card__visual{height:120px;display:flex;align-items:center;justify-content:center;font-family:var(--font-sans);font-weight:900;font-size:2rem;letter-spacing:-.02em;color:rgba(0,0,0,.08)}
.article-card__visual--ki{background:linear-gradient(135deg,#fef2f2,#fde8ec)}
.article-card__visual--dam{background:linear-gradient(135deg,#f0f4f8,#e2e8f0)}
.article-card__visual--qa{background:linear-gradient(135deg,#f0fdf4,#dcfce7)}
.article-card__visual--print{background:linear-gradient(135deg,#fefce8,#fef9c3)}
.article-card__visual--default{background:var(--gray-light)}
.article-card__tag{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);padding:16px 20px 0}
.article-card__title{font-family:var(--font-sans);font-weight:700;font-size:1.1rem;line-height:1.2;letter-spacing:-.01em;color:var(--text);padding:8px 20px 0}
.article-card__excerpt{font-size:.85rem;color:var(--text-muted);line-height:1.6;padding:8px 20px 0;flex:1}
.article-card__meta{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.08em;color:var(--text-muted);padding:16px 20px 20px}

/* CATEGORIES GRID */
.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px;margin-bottom:80px}
.category-card{border:1px solid var(--border);padding:32px 24px;transition:all .3s ease}
.category-card:hover{border-color:var(--text)}
.category-count{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;color:var(--text-muted);margin-bottom:12px}
.category-card__name{font-family:var(--font-sans);font-weight:700;font-size:1rem;color:var(--text);margin-bottom:8px}
.category-card__desc{font-size:.85rem;color:var(--text-muted);line-height:1.6}

/* FOOTER */
.footer{border-top:1px solid var(--border);padding:80px 0 0;position:relative}
.footer::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:120px;height:1px;background:var(--accent)}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:64px;max-width:1440px;margin:0 auto;padding:0 32px;margin-bottom:80px}
.footer__logo-link{display:inline-block;margin-bottom:16px}.footer__logo-img{height:60px;width:auto;display:block}
.footer__brand-desc{font-size:.9rem;color:var(--text-muted);line-height:1.6;margin-bottom:24px;max-width:280px}
.footer__col-title{font-family:var(--font-sans);font-weight:700;font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:var(--text);margin-bottom:16px}
.footer__links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer__links a{font-size:.9rem;color:var(--text-muted);transition:color .3s linear}
.footer__links a:hover{color:var(--accent)}
.footer__ghost{text-align:center;overflow:hidden;max-width:1440px;margin:0 auto;padding:0 32px;margin-bottom:-.1em}
.footer__ghost-text{font-family:var(--font-sans);font-weight:900;font-size:14vw;color:var(--border);letter-spacing:-.04em;line-height:.85;text-transform:uppercase;user-select:none;opacity:.4}
.footer__bottom{border-top:1px solid var(--border);padding:16px 32px;max-width:1440px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
.footer__legal{font-family:var(--font-mono);font-size:.65rem;color:var(--text-muted);letter-spacing:.08em}

/* RESPONSIVE */
@media(max-width:1100px){
  .hero__sub{grid-template-columns:1fr}
  .featured-article{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:48px}
}
@media(max-width:768px){
  .nav{height:88px;padding:0 16px}
  .nav__logo img{height:68px}
  .nav__links{display:none}
  .nav__burger{display:flex}
  .grid-12{padding:0 16px}
  .sidebar-label{display:none}.main-content{grid-column:1/13;border-left:none;padding-left:0}
  .hero{min-height:auto;padding-top:96px;padding-bottom:48px}
  .hero__headline{font-size:clamp(2.5rem,10vw,4rem);margin-bottom:32px}
  .section-headline{font-size:clamp(1.8rem,5vw,2.5rem)}
  .articles-grid{grid-template-columns:1fr}
  .categories-grid{grid-template-columns:1fr}
  .footer{padding:48px 0 0}
  .footer__grid{grid-template-columns:1fr;gap:32px;margin-bottom:48px}
  .footer__bottom{flex-direction:column;gap:8px;text-align:center;padding:16px}
}