/* ============================================================
   Stromfee Blog — Apple Article Template (hochwertig, eigenständig)
   Moderne Features: scroll-driven animations, view-transitions, sticky TOC.
   Degradiert sauber ohne JS / ohne scroll-timeline-Support.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Newsreader:ital,opsz,wght@0,18..72,400;0,18..72,500;1,18..72,400&display=swap');

:root{
  --a:#7c3aed; --a2:#a78bfa; --a-soft:#f3f1fb;
  --ink:#15122b; --ink2:#3d3961; --muted:#8a87a3;
  --bg:#ffffff; --surface:#faf9fe; --bd:#ece9f6;
  --maxw:720px; --shadow:0 24px 60px -20px rgba(80,55,160,.28);
  --r:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:18px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--a);text-decoration:none}
::selection{background:var(--a2);color:#fff}

/* ---------- Lese-Fortschritt (scroll-driven, kein JS) ---------- */
.sf-progress{position:fixed;top:0;left:0;height:3px;width:100%;transform-origin:0 50%;
  background:linear-gradient(90deg,var(--a),var(--a2));z-index:60;transform:scaleX(0)}
@supports (animation-timeline:scroll()){
  .sf-progress{animation:sf-grow linear;animation-timeline:scroll(root)}
}
@keyframes sf-grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* ---------- Sticky Kopf ---------- */
.sf-nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:1rem;padding:.85rem clamp(1rem,4vw,2rem);
  background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--bd)}
.sf-brand{font-weight:800;letter-spacing:-.03em;font-size:1.15rem;color:var(--ink);display:flex;align-items:center;gap:.5rem}
.sf-brand b{color:var(--a)}
.sf-brand .dot{width:9px;height:9px;border-radius:50%;background:var(--a);box-shadow:0 0 0 4px var(--a-soft)}
.sf-nav-links{display:flex;gap:1.4rem;align-items:center;font-size:.93rem;font-weight:500}
.sf-nav-links a{color:var(--ink2)}.sf-nav-links a:hover{color:var(--a)}
.sf-nav-cta{background:var(--a);color:#fff!important;padding:.5em 1.1em;border-radius:999px;font-weight:600;
  box-shadow:0 8px 20px -6px rgba(124,58,237,.5);transition:transform .15s,box-shadow .15s}
.sf-nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px -6px rgba(124,58,237,.6)}
@media(max-width:680px){.sf-nav-links a:not(.sf-nav-cta){display:none}}

/* ---------- Artikel-Kopf ---------- */
.sf-article{max-width:var(--maxw);margin:0 auto;padding:clamp(2.2rem,6vw,4rem) clamp(1.1rem,5vw,1.4rem) 4rem}
.sf-kicker{display:inline-flex;align-items:center;gap:.55rem;font-weight:700;font-size:.78rem;
  letter-spacing:.12em;text-transform:uppercase;color:var(--a);margin-bottom:1.1rem}
.sf-kicker::before{content:"";width:22px;height:2px;background:var(--a);border-radius:2px}
.sf-title{font-family:'Newsreader',Georgia,serif;font-weight:500;letter-spacing:-.018em;
  font-size:clamp(2.1rem,5.4vw,3.4rem);line-height:1.08;margin:0 0 1.1rem;color:var(--ink)}
.sf-dek{font-size:clamp(1.12rem,2.4vw,1.32rem);line-height:1.5;color:var(--ink2);font-weight:400;margin:0 0 1.8rem;max-width:38ch}
.sf-meta{display:flex;align-items:center;gap:.85rem;flex-wrap:wrap;font-size:.92rem;color:var(--muted);
  padding-bottom:1.8rem;border-bottom:1px solid var(--bd)}
.sf-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--a),var(--a2));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:.95rem;flex:0 0 auto}
.sf-meta b{color:var(--ink);font-weight:600}
.sf-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--muted)}

/* ---------- Hero-Bild (full-bleed innerhalb Spalte) ---------- */
.sf-hero{margin:2.2rem 0 2.6rem;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);
  background:var(--surface);aspect-ratio:16/9}
.sf-hero img{width:100%;height:100%;object-fit:cover}
@supports (animation-timeline:view()){
  .sf-hero img{animation:sf-kenburns both;animation-timeline:view();animation-range:entry 0% cover 60%}
}
@keyframes sf-kenburns{from{transform:scale(1.08)}to{transform:scale(1)}}

/* ---------- Fließtext ---------- */
.sf-body{font-size:1.12rem;line-height:1.78;color:#2a2748}
.sf-body>p{margin:0 0 1.45rem}
.sf-body>p:first-of-type{font-size:1.2rem;line-height:1.7;color:var(--ink2)}
.sf-body>p:first-of-type::first-letter{float:left;font-family:'Newsreader',serif;font-size:3.6rem;line-height:.82;
  font-weight:500;padding:.06em .12em 0 0;color:var(--a)}
.sf-body h2{font-weight:800;letter-spacing:-.02em;font-size:clamp(1.5rem,3.4vw,1.9rem);
  line-height:1.2;margin:2.8rem 0 1rem;scroll-margin-top:90px;color:var(--ink)}
.sf-body h3{font-weight:700;font-size:1.28rem;margin:2rem 0 .7rem;color:var(--ink)}
.sf-body h2 a.anchor,.sf-body h3 a.anchor{opacity:0;margin-left:.35em;color:var(--a2);font-weight:400}
.sf-body h2:hover a.anchor,.sf-body h3:hover a.anchor{opacity:1}
.sf-body a{color:var(--a);background-image:linear-gradient(var(--a2),var(--a2));background-size:0% 2px;
  background-position:0 100%;background-repeat:no-repeat;transition:background-size .25s}
.sf-body a:hover{background-size:100% 2px}
.sf-body ul,.sf-body ol{margin:0 0 1.5rem;padding-left:1.3rem}
.sf-body li{margin:.45rem 0}
.sf-body li::marker{color:var(--a)}
.sf-body img,.sf-body figure{margin:2rem 0;border-radius:14px;overflow:hidden}
.sf-body img{border-radius:14px;box-shadow:0 14px 36px -14px rgba(80,55,160,.3)}
.sf-body figure img{margin:0}
.sf-body figcaption{font-size:.86rem;color:var(--muted);text-align:center;margin-top:.6rem}
.sf-body blockquote{margin:2.2rem 0;padding:.2rem 0 .2rem 1.6rem;border-left:4px solid var(--a);
  font-family:'Newsreader',serif;font-size:1.5rem;line-height:1.4;color:var(--ink);font-style:italic}
.sf-body code{background:var(--a-soft);color:#5b21b6;padding:.12em .42em;border-radius:6px;font-size:.9em}
.sf-body pre{background:#15122b;color:#e9e6ff;padding:1.2rem 1.4rem;border-radius:14px;overflow:auto;font-size:.9rem;margin:2rem 0}
.sf-body pre code{background:none;color:inherit;padding:0}
.sf-body hr{border:none;border-top:1px solid var(--bd);margin:2.5rem 0}
.sf-body table{width:100%;border-collapse:collapse;margin:2rem 0;font-size:.95rem}
.sf-body th,.sf-body td{border:1px solid var(--bd);padding:.6rem .8rem;text-align:left}
.sf-body th{background:var(--surface);font-weight:700}

/* scroll-reveal für Absätze & Bilder */
@supports (animation-timeline:view()){
  @media (prefers-reduced-motion:no-preference){
    .sf-body>p,.sf-body>h2,.sf-body>h3,.sf-body>figure,.sf-body>img,.sf-body>blockquote{
      animation:sf-reveal both;animation-timeline:view();animation-range:entry 0% entry 28%}
  }
}
@keyframes sf-reveal{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* ---------- Auto-Inhaltsverzeichnis (sticky rechts auf großen Screens) ---------- */
.sf-toc{position:fixed;top:130px;right:max(1.5rem,calc((100vw - var(--maxw))/2 - 240px));width:200px;
  font-size:.85rem;line-height:1.5;display:none}
@media(min-width:1180px){.sf-toc{display:block}}
.sf-toc-title{font-weight:700;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.7rem}
.sf-toc a{display:block;color:var(--ink2);padding:.28rem 0 .28rem .8rem;border-left:2px solid var(--bd);transition:.2s}
.sf-toc a:hover,.sf-toc a.active{color:var(--a);border-left-color:var(--a)}

/* ---------- CTA-Karte (Kosmos-Querverweise) ---------- */
.sf-cta{margin:3.5rem 0 0;padding:1.8rem 2rem;border-radius:var(--r);
  background:linear-gradient(135deg,#f6f4fc,#efeafe);border:1px solid var(--bd)}
.sf-cta h4{margin:0 0 .4rem;font-size:1.15rem;font-weight:800;letter-spacing:-.01em}
.sf-cta p{margin:0 0 1.1rem;color:var(--ink2);font-size:.98rem}
.sf-cta-links{display:flex;flex-wrap:wrap;gap:.6rem}
.sf-cta-links a{background:#fff;border:1px solid var(--bd);border-radius:999px;padding:.5em 1.1em;font-weight:600;
  font-size:.9rem;color:var(--a);transition:.18s}
.sf-cta-links a:hover{background:var(--a);color:#fff;border-color:var(--a);transform:translateY(-1px)}

/* ---------- Verwandte Beiträge ---------- */
.sf-related{max-width:980px;margin:4rem auto 0;padding:0 clamp(1.1rem,5vw,1.4rem)}
.sf-related h3{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 1.4rem}
.sf-rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}
.sf-rel-card{background:var(--bg);border:1px solid var(--bd);border-radius:var(--r);overflow:hidden;
  transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.sf-rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.sf-rel-card .thumb{aspect-ratio:16/10;background:var(--surface);overflow:hidden}
.sf-rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.sf-rel-card:hover .thumb img{transform:scale(1.05)}
.sf-rel-card .body{padding:1.1rem 1.2rem 1.3rem}
.sf-rel-card h4{margin:0;font-size:1.02rem;line-height:1.35;font-weight:700;color:var(--ink)}

/* ---------- Footer ---------- */
.sf-foot{margin-top:4.5rem;border-top:1px solid var(--bd);background:var(--surface)}
.sf-foot-in{max-width:980px;margin:0 auto;padding:2.6rem clamp(1.1rem,5vw,1.4rem);
  display:flex;flex-wrap:wrap;gap:1.2rem;justify-content:space-between;align-items:center;color:var(--muted);font-size:.9rem}
.sf-foot a{color:var(--ink2)}.sf-foot a:hover{color:var(--a)}
.sf-foot-links{display:flex;gap:1.3rem;flex-wrap:wrap}

/* ============================================================
   LISTING / ARCHIV / STARTSEITE (gleiche Design-Sprache)
   ============================================================ */
.sf-hero-band{max-width:1100px;margin:0 auto;padding:clamp(2.6rem,7vw,4.5rem) clamp(1.1rem,5vw,1.4rem) 1.5rem;text-align:center}
.sf-hero-band .kick{display:inline-block;font-weight:700;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--a);margin-bottom:1rem}
.sf-hero-band h1{font-family:'Newsreader',Georgia,serif;font-weight:500;letter-spacing:-.02em;
  font-size:clamp(2.4rem,6vw,4rem);line-height:1.05;margin:0 0 1rem;color:var(--ink)}
.sf-hero-band p{font-size:clamp(1.05rem,2.3vw,1.28rem);color:var(--ink2);max-width:56ch;margin:0 auto;line-height:1.5}
.sf-hero-band .count{display:inline-block;margin-top:1.3rem;font-size:.85rem;color:var(--muted);
  background:var(--surface);border:1px solid var(--bd);border-radius:999px;padding:.35em 1em}

.sf-list{max-width:1100px;margin:0 auto;padding:1.5rem clamp(1.1rem,5vw,1.4rem) 2rem}
.sf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:1.6rem}
.sf-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--bd);border-radius:var(--r);
  overflow:hidden;transition:transform .2s,box-shadow .2s;text-decoration:none}
.sf-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.sf-card .thumb{aspect-ratio:16/10;background:var(--surface);overflow:hidden}
.sf-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.sf-card:hover .thumb img{transform:scale(1.06)}
.sf-card .pad{padding:1.1rem 1.25rem 1.4rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.sf-card .ckick{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--a)}
.sf-card h3{margin:0;font-size:1.08rem;line-height:1.32;font-weight:700;color:var(--ink)}
.sf-card .date{margin-top:auto;font-size:.82rem;color:var(--muted)}
@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){
  .sf-card{animation:sf-reveal both;animation-timeline:view();animation-range:entry 0% entry 22%}}}

.sf-pagination{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;align-items:center;margin:3rem 0 1rem}
.sf-pagination a,.sf-pagination span{min-width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 .9em;border-radius:12px;border:1px solid var(--bd);background:var(--bg);color:var(--ink2);font-weight:600;font-size:.95rem;transition:.16s}
.sf-pagination a:hover{border-color:var(--a);color:var(--a);transform:translateY(-1px)}
.sf-pagination .cur{background:var(--a);color:#fff;border-color:var(--a)}
.sf-pagination .dots{border:none;background:none}

/* view-transition für sanfte Navigation */
@view-transition{navigation:auto}