:root {
    --teal: #0F7B6C; --teal-d: #085041; --teal-m: #1D9E75;
    --mint: #E1F5EE; --mint-m: #9FE1CB;
    --pearl: #F8F6F2; --night: #1C2B3A; --night-l: #243545;
    --amber: #E8A020; --stone: #888780; --stone-l: #E5E2DA;
    --f-disp: 'Montserrat', system-ui, sans-serif;
    --f-sans: 'Montserrat', system-ui, sans-serif;
    --reading-w: 680px;
  }
  *, *::before, *::after { box-sizing: border-box; }
  body { font-family: var(--f-sans); background: #fff; color: var(--night); }
  a    { text-decoration: none; color: inherit; }
  img  { display: block; max-width: 100%; }

  /* ── SCROLL PROGRESS ──────────────────────────────────────────────────── */
  #bd-prog { position: fixed; top: 0; left: 0; height: 2px; background: var(--teal); z-index: 999; width: 0; transition: width .05s linear; }

  /* ── MAKALE HERO ──────────────────────────────────────────────────────── */
  .bd-hero { background: var(--night); padding: 80px 0 0; position: relative; overflow: hidden; }
  .bd-hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
    background-size: 80px 80px;
  }
  .bd-hero-in { max-width: 1380px; margin: 0 auto; padding: 0 48px 56px; position: relative; z-index: 2; display: grid; grid-template-columns: 1.65fr 1fr; gap: 80px; align-items: center; }
  .bd-title-wrap { max-width: 100%; }

  /* Breadcrumb */
  .bd-bc { display: flex; align-items: center; gap: 8px; margin-bottom: 40px; }
  .bd-bc a, .bd-bc span { font-size: 11.5px; color: rgba(255,255,255,.3); transition: color .2s; }
  .bd-bc a:hover  { color: var(--mint); }
  .bd-bc-sep      { color: rgba(255,255,255,.12); }
  .bd-bc-cur      { color: rgba(255,255,255,.5) !important; font-weight: 400; }

  /* Kategori */
  .bd-cat      { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
  .bd-cat-line { width: 32px; height: 1px; background: var(--teal); }
  .bd-cat-tx   { font-size: 10px; font-weight: 600; letter-spacing: 4px; text-transform: uppercase; color: var(--teal); }

  /* Başlık */
  .bd-title { font-size: clamp(36px,5.5vw,68px); font-weight: 800; color: #fff; line-height: 1.05; letter-spacing: -2px; margin-bottom: 28px; }
  .bd-title em { font-style: italic; font-weight: 300; color: var(--mint-m); }

  /* Özet */
  .bd-lead { font-size: clamp(17px,1.8vw,22px); font-weight: 300; font-style: italic; color: rgba(255,255,255,.45); line-height: 1.7; max-width: 620px; margin-bottom: 48px; }

  /* Meta */
  .bd-meta { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0 0; }
  .bd-author { display: flex; align-items: center; gap: 12px; }
  .bd-av { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.05); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; color: rgba(255,255,255,.7); flex-shrink: 0; }
  .bd-aname { font-size: 13.5px; font-weight: 500; color: rgba(255,255,255,.8); }
  .bd-aspec { font-size: 11px; color: rgba(255,255,255,.35); margin-top: 2px; }
  .bd-meta-right { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
  .bd-info { display: flex; align-items: center; gap: 20px; }
  .bd-info-item { font-size: 12px; color: rgba(255,255,255,.35); display: flex; align-items: center; gap: 6px; }
  .bd-info-item:not(:first-child)::before { content: ''; width: 1px; height: 12px; background: rgba(255,255,255,.12); display: block; }
  .bd-share { display: flex; align-items: center; gap: 10px; }
  .bd-share-label { font-size: 10px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: rgba(255,255,255,.25); }
  .bd-share-btn { width: 32px; height: 32px; border: 1px solid rgba(255,255,255,.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all .2s; cursor: pointer; }
  .bd-share-btn:hover { border-color: var(--teal); background: rgba(15,123,108,.12); }
  .bd-share-btn svg { width: 13px; height: 13px; fill: rgba(255,255,255,.3); transition: fill .2s; }
  .bd-share-btn:hover svg { fill: var(--mint); }

  /* Hero görsel */
  .bd-hero-img { width: 100%; aspect-ratio: 4/3; position: relative; overflow: hidden; border-radius: 16px; background: linear-gradient(160deg,#071c14,#0e2c22); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
  .bd-hero-img-ph { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: .08; }
  .bd-hero-img-ph svg { width: 80px; height: 80px; stroke: var(--mint); fill: none; stroke-width: .8; }
  .bd-hero-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

  /* ── MAKALE GÖVDE ─────────────────────────────────────────────────────── */
  .bd-body { padding: 80px 0 100px; background: #fff; }
  .bd-layout { max-width: 1380px; margin: 0 auto; padding: 0 48px; display: grid; grid-template-columns: var(--reading-w) 1fr; gap: 80px; align-items: flex-start; }

  /* İçerik tipografisi */
  .bd-ac-lead { font-size: clamp(18px,2.2vw,24px); font-weight: 300; color: rgba(28,43,58,.8); line-height: 1.65; margin-bottom: 40px; padding-bottom: 40px; border-bottom: 1px solid var(--stone-l); }
  .bd-ac-p    { font-size: 18px; font-weight: 300; color: rgba(28,43,58,.72); line-height: 1.9; margin-bottom: 28px; letter-spacing: .1px; }
  .bd-ac-h2   { font-size: clamp(22px,2.5vw,30px); font-weight: 700; color: var(--night); line-height: 1.2; letter-spacing: -.8px; margin: 56px 0 20px; padding-top: 56px; border-top: 1px solid var(--stone-l); display: flex; align-items: center; gap: 14px; }
  .bd-ac-h2::before { content: attr(data-n); font-size: clamp(36px,4vw,52px); font-weight: 800; color: rgba(28,43,58,.06); line-height: 1; letter-spacing: -2px; flex-shrink: 0; }
  .bd-ac-h2 em { font-style: italic; font-weight: 400; color: var(--teal); }

  /* Alıntı */
  .bd-quote { border-left: 2px solid var(--teal); padding: 4px 0 4px 28px; margin: 40px 0; }
  .bd-quote p { font-size: clamp(17px,2vw,22px); font-style: italic; font-weight: 300; color: rgba(28,43,58,.65); line-height: 1.55; margin-bottom: 10px; }
  .bd-quote cite { font-size: 11px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--teal); }

  /* Highlight */
  .bd-highlight { background: var(--pearl); border-left: 2px solid var(--teal); padding: 24px 28px; margin: 32px 0; }
  .bd-highlight p { font-size: 15px; font-weight: 300; color: rgba(28,43,58,.7); line-height: 1.8; margin: 0; }
  .bd-highlight strong { font-weight: 600; color: var(--night); }

  /* Liste */
  .bd-list { list-style: none; display: flex; flex-direction: column; margin: 24px 0 32px; }
  .bd-list li { display: flex; align-items: flex-start; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--stone-l); font-size: 17px; font-weight: 300; color: rgba(28,43,58,.7); line-height: 1.6; }
  .bd-list li:last-child { border-bottom: none; }
  .bd-li-n { font-size: 13px; font-weight: 300; color: var(--teal); flex-shrink: 0; min-width: 20px; padding-top: 3px; }

  /* Araya CTA */
  .bd-inline-cta { background: var(--night); padding: 32px 36px; margin: 48px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
  .bd-inline-cta h4 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 4px; }
  .bd-inline-cta p  { font-size: 13px; font-weight: 300; color: rgba(255,255,255,.45); }
  .bd-inline-cta-btn { display: inline-flex; align-items: center; gap: 10px; background: var(--teal); color: #fff; padding: 11px 22px; font-size: 12.5px; font-weight: 700; font-family: var(--f-sans); white-space: nowrap; transition: background .2s; cursor: pointer; border: none; flex-shrink: 0; }
  .bd-inline-cta-btn:hover { background: var(--teal-m); }
  .bd-inline-cta-btn svg { width: 14px; height: 14px; stroke: #fff; fill: none; stroke-width: 2; stroke-linecap: round; transition: transform .2s; }
  .bd-inline-cta-btn:hover svg { transform: translateX(3px); }

  /* Divider */
  .bd-div { height: 1px; background: var(--stone-l); margin: 40px 0; }

  /* Yazar kutusu */
  .bd-author-box { border-top: 1px solid var(--stone-l); padding-top: 40px; margin-top: 56px; display: flex; gap: 24px; align-items: flex-start; }
  .bd-author-av   { width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0; border: 1px solid var(--stone-l); background: var(--pearl); display: flex; align-items: center; justify-content: center; font-size: 17px; font-weight: 700; color: var(--teal); }
  .bd-author-name { font-size: 20px; font-weight: 700; color: var(--night); letter-spacing: -.3px; margin-bottom: 3px; }
  .bd-author-spec { font-size: 10px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: var(--teal); margin-bottom: 12px; }
  .bd-author-bio  { font-size: 13.5px; font-weight: 300; color: rgba(28,43,58,.55); line-height: 1.75; }

  /* Etiketler */
  .bd-tags { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--stone-l); }
  .bd-tags-label { font-size: 9px; font-weight: 600; letter-spacing: 4px; text-transform: uppercase; color: var(--stone); }
  .bd-tag { font-size: 13px; font-weight: 300; color: rgba(28,43,58,.5); font-style: italic; border-bottom: 1px solid var(--stone-l); cursor: pointer; transition: all .2s; padding-bottom: 1px; }
  .bd-tag:hover { color: var(--teal); border-bottom-color: var(--teal); }

  /* Önceki / Sonraki */
  .bd-art-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--stone-l); margin-top: 56px; }
  .bd-an-card { background: #fff; padding: 28px 32px; cursor: pointer; transition: background .25s; display: block; color: inherit; }
  .bd-an-card:hover { background: var(--pearl); }
  .bd-an-dir { font-size: 9.5px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: var(--stone); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
  .bd-an-dir svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }
  .bd-an-title { font-size: 17px; font-weight: 600; color: var(--night); line-height: 1.35; transition: color .2s; }
  .bd-an-card:hover .bd-an-title { color: var(--teal); }
  .bd-an-next { text-align: right; }
  .bd-an-next .bd-an-dir { justify-content: flex-end; }

  /* ── SIDEBAR ──────────────────────────────────────────────────────────── */
  .bd-sidebar { position: sticky; top: 148px; display: flex; flex-direction: column; gap: 0; }

  /* İçindekiler */
  .bd-toc { margin-bottom: 48px; }
  .bd-toc-label { font-size: 9px; font-weight: 600; letter-spacing: 4px; text-transform: uppercase; color: var(--stone); margin-bottom: 20px; }
  .bd-toc-item { display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--stone-l); cursor: pointer; transition: all .2s; }
  .bd-toc-item:last-child { border-bottom: none; }
  .bd-toc-item:hover .bd-toc-n  { color: var(--teal); }
  .bd-toc-item:hover .bd-toc-tx { color: var(--night); }
  .bd-toc-n  { font-size: 16px; font-weight: 300; color: rgba(28,43,58,.2); min-width: 20px; transition: color .2s; flex-shrink: 0; }
  .bd-toc-tx { font-size: 13px; font-weight: 300; color: rgba(28,43,58,.5); line-height: 1.45; transition: color .2s; }

  .bd-sb-div { height: 1px; background: var(--stone-l); margin: 0 0 40px; }

  /* Sidebar CTA */
  .bd-sb-cta { background: var(--night); padding: 28px; }
  .bd-sb-cta-label { font-size: 9px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: rgba(255,255,255,.25); margin-bottom: 14px; }
  .bd-sb-cta-txt { font-size: 20px; font-weight: 700; color: #fff; line-height: 1.3; margin-bottom: 6px; }
  .bd-sb-cta-sub  { font-size: 13px; font-weight: 300; color: rgba(255,255,255,.38); line-height: 1.65; margin-bottom: 24px; }
  .bd-sb-btn { display: flex; align-items: center; justify-content: space-between; background: var(--teal); color: #fff; padding: 13px 18px; font-size: 13px; font-weight: 700; font-family: var(--f-sans); cursor: pointer; border: none; width: 100%; transition: background .2s; margin-bottom: 12px; }
  .bd-sb-btn:hover { background: var(--teal-m); }
  .bd-sb-btn svg { width: 14px; height: 14px; stroke: #fff; fill: none; stroke-width: 2; stroke-linecap: round; }
  .bd-sb-tel { font-size: 13px; font-weight: 300; color: rgba(255,255,255,.35); display: flex; align-items: center; gap: 7px; cursor: pointer; transition: color .2s; }
  .bd-sb-tel:hover { color: var(--mint); }
  .bd-sb-tel::before { content: ''; width: 14px; height: 1px; background: currentColor; }

  /* Sidebar ilgili */
  .bd-sb-related { margin-top: 40px; }
  .bd-sb-related-label { font-size: 9px; font-weight: 600; letter-spacing: 4px; text-transform: uppercase; color: var(--stone); margin-bottom: 20px; }
  .bd-srl-item { display: flex; flex-direction: column; gap: 0; padding: 16px 0; border-bottom: 1px solid var(--stone-l); cursor: pointer; transition: opacity .2s; color: inherit; }
  .bd-srl-item:first-child { padding-top: 0; }
  .bd-srl-item:last-child  { border-bottom: none; padding-bottom: 0; }
  .bd-srl-item:hover { opacity: .7; }
  .bd-srl-cat   { font-size: 9px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: var(--teal); margin-bottom: 6px; }
  .bd-srl-title { font-size: 15px; font-weight: 600; color: var(--night); line-height: 1.35; }

  /* ── İLGİLİ MAKALELER ─────────────────────────────────────────────────── */
  .bd-related { background: var(--pearl); padding: 80px 0; border-top: 1px solid var(--stone-l); }
  .bd-related-in { max-width: 1380px; margin: 0 auto; padding: 0 48px; }
  .bd-related-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 52px; gap: 20px; border-bottom: 1px solid var(--stone-l); padding-bottom: 20px; }
  .bd-rh-title { font-size: clamp(22px,2.5vw,32px); font-weight: 700; color: var(--night); letter-spacing: -.5px; }
  .bd-rh-title em { font-style: italic; font-weight: 400; color: var(--teal); }
  .bd-rh-link { font-size: 13px; font-weight: 300; font-style: italic; color: var(--teal); border-bottom: 1px solid rgba(15,123,108,.3); padding-bottom: 1px; transition: border-color .2s; }
  .bd-rh-link:hover { border-bottom-color: var(--teal); }
  .bd-related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 0; }
  .bd-rc-item { padding: 36px 36px 36px 0; border-right: 1px solid var(--stone-l); cursor: pointer; transition: opacity .2s; position: relative; display: block; color: inherit; }
  .bd-rc-item::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--teal); transform: scaleX(0); transform-origin: left; transition: transform .35s cubic-bezier(.4,0,.2,1); }
  .bd-rc-item:hover::before { transform: scaleX(1); }
  .bd-rc-item:last-child { border-right: none; padding-right: 0; }
  .bd-rc-cat { font-size: 9px; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--teal); margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
  .bd-rc-cat::before { content: ''; width: 14px; height: 1px; background: var(--teal); }
  .bd-rc-title { font-size: clamp(16px,1.8vw,20px); font-weight: 700; color: var(--night); line-height: 1.3; letter-spacing: -.3px; margin-bottom: 14px; transition: color .25s; }
  .bd-rc-item:hover .bd-rc-title { color: var(--teal); }
  .bd-rc-title em { font-style: italic; font-weight: 400; }
  .bd-rc-foot { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--stone-l); padding-top: 16px; margin-top: 20px; }
  .bd-rc-author { font-size: 12px; color: var(--stone); }
  .bd-rc-arr { width: 26px; height: 26px; border: 1px solid var(--stone-l); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all .25s; }
  .bd-rc-arr svg { width: 11px; height: 11px; stroke: var(--stone); fill: none; stroke-width: 2; stroke-linecap: round; transition: all .25s; }
  .bd-rc-item:hover .bd-rc-arr { border-color: var(--teal); background: var(--teal); }
  .bd-rc-item:hover .bd-rc-arr svg { stroke: #fff; transform: translateX(1px); }

  /* ── RESPONSIVE ───────────────────────────────────────────────────────── */
  @media(max-width:1200px) {
    .bd-hero-in { grid-template-columns: 1fr; gap: 40px; padding-bottom: 40px; }
    .bd-layout { grid-template-columns: 1fr; }
    .bd-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; margin-top: 64px; }
    .bd-toc, .bd-sb-cta, .bd-sb-related { margin-bottom: 0; }
  }
  @media(max-width:900px) {
    .bd-related-grid { grid-template-columns: 1fr 1fr; }
    .bd-rc-item:nth-child(2) { border-right: none; padding-right: 0; }
    .bd-rc-item:nth-child(3) { border-right: none; padding: 36px 0 0; border-top: 1px solid var(--stone-l); }
  }
  @media(max-width:768px) {
    .bd-hero { padding: 56px 0 0; }
    .bd-hero-in, .bd-layout, .bd-related-in { padding-left: 20px; padding-right: 20px; }
    .bd-hero-img { aspect-ratio: 16/9; }
    .bd-meta { flex-direction: column; align-items: flex-start; gap: 16px; }
    .bd-meta-right { gap: 16px; }
    .bd-body { padding: 44px 0 60px; }
    .bd-ac-p { font-size: 16px; line-height: 1.8; }
    .bd-list li { font-size: 15px; }
    .bd-inline-cta { flex-direction: column; gap: 16px; padding: 24px 20px; }
    .bd-inline-cta-btn { width: 100%; justify-content: center; }
    .bd-art-nav { grid-template-columns: 1fr; }
    .bd-an-card:first-child { border-bottom: 1px solid var(--stone-l); }
    .bd-sidebar { grid-template-columns: 1fr; }
    .bd-related { padding: 44px 0; }
    .bd-related-head { flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 32px; }
    .bd-related-grid { grid-template-columns: 1fr; }
    .bd-rc-item { border-right: none; padding: 28px 0; border-bottom: 1px solid var(--stone-l); }
    .bd-rc-item:last-child { border-bottom: none; }
    .bd-rc-item:nth-child(3) { border-top: none; padding-top: 0; }
  }