:root{
    /* Akademik Sükûnet paleti (D-026) — teal */
    --paper:#F4F6F4;--surface:#FFFFFF;--petrol-deep:#17302F;--petrol:#1E3E3D;--petrol-mid:#37716F;
    --teal-soft:#8FB3B0;--brass:#37716F;--brass-soft:#D8C3A3;--ink:#152322;--ink-soft:#5B6664;
    --line:#DDE5E1;--line-dark:rgba(255,255,255,.14);
    --serif:'Source Serif 4',Georgia,serif;--sans:'Inter',system-ui,sans-serif;--mono:'Inter',system-ui,sans-serif;
    --wrap:1180px;--measure:720px;--gut:clamp(20px,5vw,64px);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
  a{color:inherit;text-decoration:none}img{max-width:100%;display:block}

  /* klavye odağı */
  a:focus-visible,button:focus-visible{outline:3px solid var(--petrol-mid);outline-offset:3px;border-radius:5px}
  .hdr a:focus-visible,.hdr button:focus-visible,.art-head a:focus-visible,.cta-card.dark a:focus-visible,footer a:focus-visible,.mnav a:focus-visible,.mnav button:focus-visible{outline-color:var(--brass-soft)}
  /* içeriğe geç */
  .skip{position:absolute;left:12px;top:-60px;z-index:400;background:var(--petrol-mid);color:#fff;padding:10px 16px;border-radius:5px;font-weight:500;font-size:.9rem;transition:top .2s}
  .skip:focus{top:12px}

  .wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
  .eyebrow{font-family:var(--sans);font-weight:500;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--brass);display:inline-flex;align-items:center;gap:.6em}
  .eyebrow::before{content:"";width:18px;height:1px;background:var(--brass);display:inline-block}

  .hdr{position:sticky;top:0;z-index:100;transition:background .4s,box-shadow .4s,border-color .4s;background:rgba(23,48,47,.82);backdrop-filter:blur(8px);border-bottom:1px solid transparent}
  .hdr.solid{background:rgba(23,48,47,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line-dark);box-shadow:0 6px 30px rgba(0,0,0,.18)}
  .hdr .wrap{display:flex;align-items:center;gap:28px;height:76px}
  .brand{display:flex;align-items:center;gap:13px;color:#fff}
  .brand .mono{width:38px;height:38px;flex:none}
  .brand-txt{display:flex;flex-direction:column;line-height:1.12}
  .brand-txt b{font-family:var(--serif);font-weight:600;font-size:1.1rem;letter-spacing:.005em}
  .brand-txt span{font-family:var(--sans);font-weight:500;font-size:.56rem;letter-spacing:.18em;text-transform:uppercase;color:var(--brass-soft);margin-top:2px}
  .nav{margin-left:auto;display:flex;align-items:center;gap:20px}
  .nav a{color:rgba(255,255,255,.82);white-space:nowrap;font-size:.9rem;position:relative;padding:4px 0;transition:color .3s}
  .nav a:not(.cta):after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--brass-soft);transition:width .3s}
  .nav a:hover{color:#fff}
  .nav a:not(.cta):hover:after{width:100%}
  .nav a.active{color:#fff}.nav a.active:after{width:100%}
  .nav a.cta{background:var(--brass-soft);color:var(--petrol-deep);padding:10px 20px;border-radius:8px;font-weight:600;font-size:.85rem;transition:background .25s,box-shadow .25s}
  .cta:hover{background:#E4D3B6;box-shadow:0 6px 18px rgba(0,0,0,.18)}
  .nav a.cta:after{display:none}
  .nav .drop-wrap{position:relative;display:inline-flex;align-items:center}.nav .drop-btn:after{display:none}.nav .drop{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);min-width:232px;background:rgba(23,48,47,.98);backdrop-filter:blur(12px);border:1px solid var(--line-dark);border-radius:10px;padding:8px;display:flex;flex-direction:column;gap:2px;opacity:0;visibility:hidden;transition:opacity .25s,transform .25s;box-shadow:0 14px 44px rgba(0,0,0,.32);z-index:130}.nav .drop a{color:rgba(255,255,255,.85);font-size:.88rem;padding:10px 14px;border-radius:6px;white-space:nowrap}.nav .drop a:after{display:none}.nav .drop a:hover{background:rgba(255,255,255,.08);color:#fff}.nav .drop:before{content:"";position:absolute;top:-14px;left:0;right:0;height:16px}.nav .drop-wrap:hover .drop,.nav .drop-wrap:focus-within .drop{opacity:1;visibility:visible;transform:translateX(-50%) translateY(2px)}
  .burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;width:40px;height:40px;flex-direction:column;gap:5px;justify-content:center;align-items:center}
  .burger span{width:22px;height:2px;background:#fff;transition:.3s}
  .mnav{position:fixed;inset:0;z-index:200;background:rgba(23,48,47,.98);backdrop-filter:blur(10px);display:flex;flex-direction:column;justify-content:center;gap:6px;padding:40px;transform:translateX(100%);visibility:hidden;transition:transform .4s cubic-bezier(.22,.61,.36,1),visibility .4s}
  .mnav.open{transform:none;visibility:visible}
  .mnav a{color:#fff;font-family:var(--serif);font-size:1.6rem;padding:12px 0;border-bottom:1px solid var(--line-dark)}
  .mnav a.cta{background:var(--brass-soft);color:var(--petrol-deep);border-radius:8px;text-align:center;border:0;margin-top:16px;font-family:var(--sans);font-size:1.02rem;padding:15px;font-weight:600}
  .mclose{position:absolute;top:24px;right:24px;background:none;border:0;color:#fff;font-size:2rem;cursor:pointer}
  @media(max-width:768px){.nav{display:none}.burger{display:flex}}

  /* okuma ilerleme çubuğu */
  .progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--petrol-mid);z-index:300;transition:width .12s}

  /* MAKALE BAŞLIK BLOĞU */
  .art-head{background:radial-gradient(60% 55% at 88% 18%,rgba(143,179,176,.10),transparent 60%),radial-gradient(120% 90% at 50% 130%,rgba(0,0,0,.25),transparent 60%),linear-gradient(160deg,#224442 0%,#183130 55%,#0E2221 100%);color:#E9EDE9;position:relative;overflow:hidden;padding:clamp(24px,4vh,40px) 0 clamp(40px,7vh,72px)}
  .art-head::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 88% -10%, rgba(143,179,176,.22), transparent 55%),radial-gradient(80% 70% at 0% 110%, rgba(216,195,163,.12), transparent 60%);pointer-events:none}
  .hero-motif{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
  .art-head .wrap{position:relative;z-index:2;max-width:calc(var(--measure) + 2*var(--gut))}
  .crumb{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:#8DA09A;display:flex;gap:10px;align-items:center;margin-bottom:26px;flex-wrap:wrap}
  .crumb a{color:#8DA09A;text-decoration:none}.crumb a:hover{color:#C3CFCA}.crumb .sep{color:var(--teal-soft)}.crumb .cur{color:var(--brass-soft)}
  .kbadge{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-soft);border:1px solid var(--line-dark);border-radius:2px;padding:5px 10px}
  .art-head h1{font-family:var(--serif);font-weight:400;font-size:clamp(2rem,4.6vw,3.1rem);line-height:1.12;letter-spacing:-.015em;margin:20px 0 18px}
  .art-head .byline{font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:#A9B7B2;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
  .art-head .byline .who{color:#EDF1ED}

  /* MAKALE GÖVDE */
  .article{background:var(--paper);padding:clamp(40px,6vh,72px) 0 clamp(48px,7vh,88px)}
  .article .wrap{max-width:calc(var(--measure) + 2*var(--gut))}

  /* KISA CEVAP kutusu — GEO/snippet için kritik */
  .tldr{border:1px solid var(--line);border-left:3px solid var(--brass);background:var(--surface);border-radius:0 5px 5px 0;padding:22px 26px;margin-bottom:40px}
  .tldr .t-lbl{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass);margin-bottom:10px}
  .tldr p{font-size:1.05rem;color:var(--ink);line-height:1.6;margin:0}

  /* İÇİNDEKİLER */
  .toc{border:1px solid var(--line);border-radius:5px;background:var(--surface);padding:20px 24px;margin-bottom:40px}
  .toc .t-lbl{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:12px}
  .toc ol{list-style:none;counter-reset:t;display:grid;gap:8px}
  .toc li{counter-increment:t}
  .toc a{text-decoration:none;color:var(--petrol);font-size:.96rem;display:flex;gap:12px;align-items:baseline}
  .toc a::before{content:counter(t,decimal-leading-zero);font-family:var(--mono);font-size:.72rem;color:var(--brass)}
  .toc a:hover{color:var(--brass)}
  /* masaüstü: içindekiler sağ sabit ray */
  @media(min-width:1080px){
    .article .wrap{max-width:1060px;display:grid;grid-template-columns:minmax(0,660px) 236px;justify-content:center;column-gap:56px;align-items:start}
    .article .wrap>*{grid-column:1;min-width:0}
    .article .toc{grid-column:2;grid-row:1 / span 60;position:sticky;top:100px;margin:0}
    .article .toc ol{gap:10px}
  }

  /* PROSE */
  .prose{font-size:1.09rem;line-height:1.75;color:var(--ink)}
  .prose h2{font-family:var(--serif);font-weight:500;font-size:clamp(1.5rem,2.8vw,1.95rem);letter-spacing:-.01em;margin:48px 0 16px;scroll-margin-top:90px}
  .prose h3{font-family:var(--serif);font-weight:500;font-size:1.3rem;margin:32px 0 12px}
  .prose p{margin-bottom:20px;color:var(--ink-soft)}
  .prose p strong{color:var(--ink);font-weight:600}
  .prose ul,.prose ol{margin:0 0 22px 0;padding-left:0;list-style:none;display:grid;gap:12px}
  .prose ul li{position:relative;padding-left:26px;color:var(--ink-soft)}
  .prose ul li::before{content:"";position:absolute;left:3px;top:.6em;width:8px;height:8px;border:1px solid var(--brass);border-radius:50%}
  .prose ol{counter-reset:n}
  .prose ol li{counter-increment:n;position:relative;padding-left:34px;color:var(--ink-soft)}
  .prose ol li::before{content:counter(n);position:absolute;left:0;top:0;font-family:var(--mono);font-size:.82rem;color:var(--brass);border:1px solid var(--line);border-radius:5px;width:22px;height:22px;display:grid;place-items:center}

  /* tanım/vurgu kutusu */
  .define{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:22px 24px;margin:28px 0}
  .define .d-lbl{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--petrol-mid);margin-bottom:8px}
  .define p{margin:0;font-size:1rem;color:var(--ink)}
  .note-warn{border-left:3px solid var(--teal-soft);background:var(--surface);padding:16px 20px;border-radius:0 5px 5px 0;margin:28px 0}
  .note-warn p{margin:0;font-size:.98rem;color:var(--ink)}
  /* istatistik vurgusu */
  .pull{display:flex;gap:22px;align-items:center;border:1px solid var(--line);border-radius:5px;background:var(--surface);padding:22px 26px;margin:30px 0}
  .pull .n{font-family:var(--serif);font-weight:600;font-size:clamp(2.3rem,6vw,3.1rem);line-height:1;color:var(--petrol-mid);flex:none}
  .pull .x{font-size:1rem;color:var(--ink-soft);margin:0}
  /* karşılaştırma tablosu */
  .tbl-wrap{overflow-x:auto;margin:26px 0}
  table.hpv-tbl{border-collapse:collapse;width:100%;min-width:520px;font-size:.96rem}
  table.hpv-tbl th,table.hpv-tbl td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
  table.hpv-tbl thead th{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--petrol-mid)}
  table.hpv-tbl td:first-child{font-weight:600;color:var(--ink)}
  table.hpv-tbl tr:last-child td{border-bottom:0}
  /* hemen doktora — uyarı */
  .note-alert{border-left:3px solid var(--brass);background:rgba(216,182,92,.07);padding:16px 20px;border-radius:0 5px 5px 0;margin:28px 0}
  .note-alert .a-lbl{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass);margin-bottom:8px}
  .note-alert p{margin:0 0 8px;font-size:.98rem;color:var(--ink)}
  /* taslak notu */
  .draft-note{font-family:var(--mono);font-size:.72rem;letter-spacing:.03em;line-height:1.5;color:#7a5c1b;background:rgba(216,182,92,.12);border:1px solid rgba(216,182,92,.4);border-radius:5px;padding:12px 16px;margin-bottom:28px}

  /* SSS blok */
  .art-faq{margin-top:56px}
  .art-faq h2{font-family:var(--serif);font-weight:500;font-size:clamp(1.5rem,2.8vw,1.95rem);margin-bottom:8px}
  details.faq{border-top:1px solid var(--line)}
  details.faq:last-child{border-bottom:1px solid var(--line)}
  details.faq summary{list-style:none;cursor:pointer;padding:20px 40px 20px 0;position:relative;font-family:var(--serif);font-size:1.12rem;font-weight:500;color:var(--ink)}
  details.faq summary::-webkit-details-marker{display:none}
  details.faq summary::after{content:"+";position:absolute;right:4px;top:18px;font-family:var(--mono);font-size:1.25rem;color:var(--brass);transition:transform .3s}
  details.faq[open] summary::after{transform:rotate(45deg)}
  details.faq .a{padding:0 40px 22px 0;color:var(--ink-soft)}

  /* KAYNAKLAR */
  .sources{margin-top:48px;border-top:1px solid var(--line);padding-top:28px}
  .sources h2{font-family:var(--serif);font-weight:500;font-size:1.4rem;margin-bottom:16px}
  .sources ol{list-style:decimal;padding-left:22px;display:grid;gap:8px}
  .sources li{font-size:.9rem;color:var(--ink-soft);line-height:1.5}

  /* SORUMLULUK / YAZAR KUTUSU */
  .author-box{margin-top:40px;border:1px solid var(--line);border-radius:5px;background:var(--surface);padding:26px;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center}
  .author-box .av{width:64px;height:64px;border-radius:50%;border:1px solid var(--line);background:var(--petrol);display:grid;place-items:center;font-family:var(--serif);color:var(--brass-soft);font-size:1.4rem}
  .author-box .who{font-family:var(--serif);font-weight:500;font-size:1.15rem}
  .author-box .role{font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);margin-top:4px}
  .author-box p{font-size:.9rem;color:var(--ink-soft);margin-top:10px}
  .resp{margin-top:22px;padding:18px 22px;border:1px dashed var(--line);border-radius:5px;background:transparent}
  .resp .r-lbl{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass);margin-bottom:8px}
  .resp p{font-size:.86rem;color:var(--ink-soft);line-height:1.6;margin:0}

  /* KURUMSAL CTA KARTLARI */
  .cta-cards{background:var(--surface);border-top:1px solid var(--line);padding:clamp(48px,7vh,80px) 0}
  .cta-cards .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:var(--wrap)}
  .cta-card{background:var(--paper);border:1px solid var(--line);border-radius:5px;padding:30px 28px;display:flex;flex-direction:column;transition:border-color .3s,transform .35s cubic-bezier(.2,.7,.2,1);text-decoration:none}
  .cta-card:hover{border-color:var(--teal-soft);transform:translateY(-4px)}
  .cta-card.dark{background:var(--petrol);border-color:var(--petrol);color:#E9EDE9}
  .cta-card .ic{width:44px;height:44px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--brass);margin-bottom:20px;font-family:var(--serif);font-size:1.2rem}
  .cta-card.dark .ic{border-color:var(--line-dark);color:var(--brass-soft)}
  .cta-card h3{font-family:var(--serif);font-weight:500;font-size:1.3rem;margin-bottom:10px}
  .cta-card p{font-size:.92rem;color:var(--ink-soft);margin-bottom:20px}
  .cta-card.dark p{color:#B8C5C0}
  .cta-card .go{margin-top:auto;font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--petrol);display:inline-flex;gap:8px;align-items:center}
  .cta-card.dark .go{color:var(--brass-soft)}
  .cta-card:hover .go .arr{transform:translateX(5px)}.cta-card .go .arr{transition:transform .25s}

  /* İLGİLİ */
  .related{background:var(--paper);border-top:1px solid var(--line)}
  .related .sec-head{max-width:60ch;margin-bottom:28px}
  .related h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.5rem,2.8vw,2rem);margin-top:12px}
  .rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
  .rel{border:1px solid var(--line);border-radius:5px;padding:22px;text-decoration:none;display:flex;flex-direction:column;transition:border-color .3s,transform .35s}
  .rel:hover{border-color:var(--teal-soft);transform:translateY(-3px)}
  .rel .kbadge2{font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brass);margin-bottom:10px}
  .rel h3{font-family:var(--serif);font-weight:500;font-size:1.1rem;line-height:1.3;color:var(--ink)}

  footer{background:var(--petrol-deep);color:#9FB0AB;padding:40px 0 22px;font-size:.86rem}
  .foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;padding-bottom:24px;border-bottom:1px solid var(--line-dark)}
  .foot-brand .brand{color:#EDF1ED}
  .foot-brand p{margin-top:16px;max-width:38ch;color:#8DA09A;font-size:.88rem}
  .foot-col h5{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal-soft);margin-bottom:12px}
  .foot-col a{display:block;color:#9FB0AB;padding:3px 0;text-decoration:none;transition:color .2s}.foot-col a:hover{color:#EDF1ED}
  .disclaimer{margin-top:20px;padding:16px 20px;border:1px solid var(--line-dark);border-radius:5px;background:rgba(255,255,255,.02)}
  .disclaimer .d-label{font-family:var(--mono);font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--brass-soft);margin-bottom:10px}
  .disclaimer p{font-size:.82rem;color:#9FB0AB;line-height:1.65;max-width:88ch}
  .foot-legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-top:16px;font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;color:#7C8E89}
  .foot-legal .upd strong{color:#A9B7B2;font-weight:500}

  .reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
  .reveal.in{opacity:1;transform:none}

  @media(max-width:880px){
    .cta-cards .grid,.rel-grid{grid-template-columns:1fr}
    .author-box{grid-template-columns:1fr;text-align:left}
    .foot-top{grid-template-columns:1fr;gap:30px}.foot-legal{flex-direction:column}
  }
  @media(prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
    .reveal{opacity:1!important;transform:none!important}
  }

  /* ---------- SÜREÇ AKIŞI (diyagram — çizgi/tipografik) ---------- */
  .flow{margin:32px 0;border:1px solid var(--line);border-radius:8px;background:var(--surface);overflow:hidden}
  .flow-head{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--petrol-mid);padding:14px 18px;border-bottom:1px solid var(--line)}
  .flow-steps{display:grid;grid-template-columns:repeat(4,1fr)}
  .flow-step{position:relative;padding:20px 18px;border-right:1px solid var(--line)}
  .flow-step:last-child{border-right:0}
  .flow-step .n{font-family:var(--serif);font-weight:600;font-size:1.35rem;color:var(--petrol-mid);line-height:1}
  .flow-step .t{font-family:var(--serif);font-weight:500;font-size:1.02rem;color:var(--ink);margin:8px 0 5px;letter-spacing:-.005em}
  .flow-step .d{font-size:.85rem;color:var(--ink-soft);line-height:1.5}
  .flow-step::after{content:"→";position:absolute;right:-9px;top:50%;transform:translateY(-50%);color:var(--brass);font-weight:600;background:var(--surface);padding:2px 0;z-index:1}
  .flow-step:last-child::after{display:none}
  @media(max-width:720px){
    .flow-steps{grid-template-columns:1fr}
    .flow-step{border-right:0;border-bottom:1px solid var(--line)}
    .flow-step:last-child{border-bottom:0}
    .flow-step::after{content:"↓";right:auto;left:50%;top:auto;bottom:-10px;transform:translateX(-50%);padding:0 6px}
  }

  /* ---------- AÇ-KAPA BÖLÜM (ikincil içerik) ---------- */
  .prose details.fold{border:1px solid var(--line);border-radius:6px;margin:24px 0;background:var(--surface)}
  .prose details.fold>summary{list-style:none;cursor:pointer;padding:16px 46px 16px 20px;position:relative;font-family:var(--serif);font-weight:500;font-size:clamp(1.15rem,2vw,1.35rem);color:var(--ink);letter-spacing:-.005em}
  .prose details.fold>summary::-webkit-details-marker{display:none}
  .prose details.fold>summary::after{content:"+";position:absolute;right:18px;top:15px;font-family:var(--mono);font-size:1.35rem;color:var(--brass);transition:transform .3s;line-height:1}
  .prose details.fold[open]>summary::after{transform:rotate(45deg)}
  .prose details.fold>summary:hover{color:var(--petrol-mid)}
  .prose details.fold .fold-body{padding:2px 20px 18px}
  .prose details.fold .fold-body>*:first-child{margin-top:0}