/* Blog sayfalarinin ortak stili.
   index.html'in tasarim jetonlari, yazi tipografisi icin genisletilmis hali.
   Tailwind blogu (200 KB) buraya tasinmadi: bu sayfalar duz metin.
   privacy.html kendi stilini icinde tasiyor ve DOKUNULMADI -- tek sayfalik
   yasal metnin baska bir dosyaya bagimli olmasi icin sebep yok. */

:root {
  --indigo: #454581;
  --indigo-300: #9A9AC8;
  --indigo-50: #F3F3F7;
  --ink: #0B0B14;
  --slate-400: #94A3B8;
  --slate-500: #64748B;
  --slate-700: #334155;
  --hairline: #E8E8EF;
  --surface-alt: #FAFAFC;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: #fff; color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px; line-height: 1.7;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: 1000px; margin: 0 auto; padding: 0 24px; }

/* ── Dil ──
   Varsayilan EN (ana sayfayla ayni): data-ui-lang hic yokken bile sayfa
   dolu gelir. Ana sayfadaki kural TR'yi `display: inline` diye geri
   aciyor; burada oyle yapilmiyor cunku blogda blok seviyesinde de
   (formul kutulari, tablolar) dil varyanti var -- inline'a zorlamak
   onlari bozardi. Yalnizca GIZLEME kurali yaziliyor. */
[data-lang] { }
html:not([data-ui-lang="tr"]) [data-lang="tr"] { display: none; }
html[data-ui-lang="tr"]       [data-lang="en"] { display: none; }

/* ── Ust bar ──
   Ana sayfanin navigasyonunun blog karsiligi. Ilk surumde blog sayfalari
   yalnizca logo + "Ana sayfa" baglantisi tasiyordu; ziyaretci siteden
   kopmus hissediyordu. Tailwind blogu burada olmadigi icin ayni gorunum
   elle yazildi. */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--hairline);
  padding: 14px 0; margin-bottom: 56px;
}
header.site .bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
header.site img { height: 22px; width: auto; display: block; }
.site-nav { display: flex; align-items: center; gap: 2px; }
/* > a: dogrudan cocuk. Acilir listenin ICINDEKI baglantilar bu kurallari
   almamali -- ozellikle white-space:nowrap iki satirlik ozetleri tek satira
   sikistirip paneli ekrandan tasirirdi. */
.site-nav > a,
.site-nav > .nav-drop > a {
  display: inline-flex; align-items: center;
  padding: 8px 12px; border-radius: 9999px;
  font-size: 14px; color: var(--slate-500); text-decoration: none;
  white-space: nowrap; transition: color .2s, background .2s;
}
.site-nav > a:hover,
.site-nav > .nav-drop > a:hover { color: var(--indigo); background: var(--indigo-50); }
.site-nav > a.current { color: var(--ink); font-weight: 600; }

/* ── Menudeki acilir liste ──
   Ana sayfadakinin aynisi; blogda da "Cozumler" uzerine gelince iki modul
   ozetiyle acilsin diye. Saf CSS: :hover ve :focus-within, JS yok.
   Panelin padding-top'u hover alanina DAHIL -- baglanti ile kart arasinda
   imlecin dustugu olu bir bosluk kalmasin. */
.nav-drop { position: relative; }
.nav-caret { margin-left: 5px; transition: transform .18s ease; }
.nav-drop:hover .nav-caret,
.nav-drop:focus-within .nav-caret { transform: rotate(180deg); }
.nav-drop-panel {
  position: absolute; top: 100%; left: 50%;
  padding-top: 10px; width: 360px;
  transform: translate(-50%, -6px);
  opacity: 0; pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  z-index: 60;
}
.nav-drop:hover .nav-drop-panel,
.nav-drop:focus-within .nav-drop-panel { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.nav-drop-card {
  padding: 8px; border-radius: 20px; background: #fff;
  box-shadow: 0 26px 50px -20px rgba(11, 11, 20, 0.30), inset 0 0 0 1px var(--hairline);
}
.nav-drop-item { display: block; padding: 11px 13px; border-radius: 14px; text-decoration: none; transition: background .18s ease; }
.nav-drop-item:hover { background: var(--indigo-50); }
.nav-drop-item + .nav-drop-item { margin-top: 4px; padding-top: 13px; border-top: 1px solid var(--hairline); }
.nav-drop-meta {
  display: block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--indigo);
}
.nav-drop-name { display: block; margin-top: 4px; font-size: 14px; font-weight: 600; color: var(--ink); }
.nav-drop-say { display: block; margin-top: 3px; font-size: 12.5px; line-height: 1.5; color: var(--slate-500); }
.bar-right { display: flex; align-items: center; gap: 10px; }

.lang-toggle {
  display: inline-flex; align-items: center;
  background: rgba(11, 11, 20, 0.05); border-radius: 9999px; padding: 3px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px; font-weight: 600;
}
.lang-toggle button {
  padding: 4px 10px; border-radius: 9999px; border: 0; background: none;
  color: var(--slate-500); cursor: pointer;
  font: inherit; transition: color .2s, background .2s, box-shadow .2s;
}
.lang-toggle button.active { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(11, 11, 20, 0.1); }

.btn-head {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--indigo); color: #fff; text-decoration: none;
  font-size: 14px; font-weight: 500;
  padding: 9px 17px; border-radius: 9999px;
  white-space: nowrap; transition: filter .2s;
}
.btn-head:hover { filter: brightness(1.12); }

/* Dar ekranda once nav, sonra buton dusuyor; logo ve dil anahtari kalir --
   ikisi de sayfadan cikis yollari. */
@media (max-width: 900px) { .site-nav { display: none; } }
@media (max-width: 460px) { .btn-head { display: none; } }

/* ── Yaziya geri donus ──
   Ust bardaki "Blog" sekmesi bu isi teknik olarak goruyordu ama yazinin
   kendi baglaminda degil; okuyucu listeye donecegini oradan anlamiyordu.
   Basligin hemen ustunde, ok ile, acik bir cikis. */
.back-link {
  /* inline-flex DEGIL: hemen ardindan gelen .eyebrow de inline-flex, ikisi
     yan yana diziliyordu. width:fit-content ile blok satiri kendi kaplar. */
  display: flex; width: fit-content; align-items: center; gap: 7px;
  margin-bottom: 22px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px; letter-spacing: 0.04em;
  color: var(--slate-500); text-decoration: none;
  transition: color .2s, gap .2s;
}
.back-link:hover { color: var(--indigo); gap: 11px; }
.back-link span[aria-hidden] { font-size: 14px; line-height: 1; }

/* ── Yazi sonu: ilgili yazilar ──
   Ic baglanti hem okuyucuyu sitede tutuyor hem de arama motoruna
   yazilarin birbiriyle iliskili oldugunu soyluyor. */
.related { margin: 56px 0 0; padding-top: 28px; border-top: 1px solid var(--hairline); }
.related h3 {
  font-family: Lexend, Inter, sans-serif; font-weight: 600;
  font-size: 15px; margin: 0 0 16px; color: var(--slate-500);
}
.related-list { display: grid; gap: 10px; }
.related-list a {
  display: block; text-decoration: none; color: inherit;
  padding: 15px 18px; border-radius: 16px;
  background: var(--surface-alt); box-shadow: inset 0 0 0 1px var(--hairline);
  transition: box-shadow .2s ease;
}
.related-list a:hover { box-shadow: inset 0 0 0 1px var(--indigo-300); }
.related-list .rt { display: block; font-size: 15px; font-weight: 600; color: var(--ink); line-height: 1.35; }
.related-list .rd { display: block; margin-top: 4px; font-size: 13px; color: var(--slate-500); }

/* ── Baslik alani ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--indigo); background: var(--indigo-50);
  padding: 6px 13px; border-radius: 9999px; margin-bottom: 22px;
}
h1 {
  font-family: Lexend, Inter, sans-serif; font-weight: 700;
  font-size: clamp(30px, 5.2vw, 44px); line-height: 1.1;
  letter-spacing: -0.025em; margin: 0 0 14px;
}
.lede { font-size: 19px; color: var(--slate-500); margin: 0 0 14px; line-height: 1.6; }
.meta {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px; color: var(--slate-400); margin: 0 0 44px;
}

/* ── Govde ── */
article h2 {
  font-family: Lexend, Inter, sans-serif; font-weight: 600;
  font-size: 24px; letter-spacing: -0.015em; line-height: 1.25;
  margin: 52px 0 14px; padding-top: 26px;
  border-top: 1px solid var(--hairline);
}
article h3 {
  font-family: Lexend, Inter, sans-serif; font-weight: 600;
  font-size: 17px; letter-spacing: -0.01em;
  margin: 30px 0 8px;
}
article p, article li { color: var(--slate-700); }
article p { margin: 0 0 16px; }
article ul, article ol { padding-left: 20px; margin: 0 0 18px; }
article li { margin-bottom: 8px; }
a { color: var(--indigo); }
strong { color: var(--ink); font-weight: 600; }

/* Formul / kod blogu */
.formula {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13.5px; line-height: 1.75;
  background: var(--ink); color: #E6E6F0;
  padding: 18px 20px; border-radius: 14px; margin: 18px 0;
  overflow-x: auto; white-space: pre;
}
.formula .c { color: var(--indigo-300); }
/* Dar ekranda formul yine de kendi icinde yatay kayar (white-space: pre) --
   sayfa govdesi kaymaz. Punto kucultmek kayma miktarini azaltiyor. */
@media (max-width: 520px) { .formula { font-size: 12px; padding: 15px 16px; border-radius: 12px; } }

/* Kenar notu / uyari */
.note {
  background: var(--surface-alt); border-radius: 14px;
  padding: 18px 20px; margin: 22px 0;
  box-shadow: inset 0 0 0 1px var(--hairline);
  font-size: 15px;
}
.note p { margin: 0 0 8px; }
.note p:last-child { margin-bottom: 0; }
.note .label {
  display: block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--slate-400); margin-bottom: 8px;
}
.note.warn { background: #FEF9EE; box-shadow: inset 0 0 0 1px rgba(180,120,0,.18); }
.note.warn .label { color: #A06A00; }

table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px; }
th, td { text-align: left; padding: 11px 14px 11px 0; border-bottom: 1px solid var(--hairline); vertical-align: top; }
th { font-weight: 600; color: var(--ink); }
td { color: var(--slate-700); }
.tbl-scroll { overflow-x: auto; }

.en {
  font-size: 14px; color: var(--slate-500); line-height: 1.6;
  border-left: 3px solid var(--hairline); padding-left: 14px; margin: 0 0 44px;
}

/* ── Blog listesi ── */
.post-list { display: grid; gap: 18px; margin: 40px 0 0; }
.post-card {
  display: block; text-decoration: none; color: inherit;
  padding: 26px 26px 24px; border-radius: 22px;
  background: var(--surface-alt);
  box-shadow: inset 0 0 0 1px var(--hairline);
  transition: box-shadow .2s ease, transform .2s ease;
}
.post-card:hover { box-shadow: inset 0 0 0 1px var(--indigo-300); transform: translateY(-2px); }
.post-card .tag {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px; letter-spacing: 0.13em; text-transform: uppercase; color: var(--indigo);
}
.post-card h2 {
  font-family: Lexend, Inter, sans-serif; font-weight: 600;
  font-size: 22px; letter-spacing: -0.015em; line-height: 1.25;
  margin: 8px 0 8px; border: 0; padding: 0; color: var(--ink);
}
.post-card p { margin: 0; color: var(--slate-500); font-size: 15px; }
.post-card .when {
  display: block; margin-top: 14px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px; color: var(--slate-400);
}

/* ── Yazi sonu CTA ── */
.cta {
  margin: 56px 0 0; padding: 30px 28px; border-radius: 24px;
  background: var(--ink); color: #fff;
}
.cta h3 { font-family: Lexend, Inter, sans-serif; font-weight: 600; font-size: 21px; margin: 0 0 8px; letter-spacing: -0.015em; }
.cta p { color: rgba(255,255,255,.72); margin: 0 0 18px; font-size: 15px; }
.cta a {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; color: var(--ink); text-decoration: none;
  font-weight: 600; font-size: 15px;
  padding: 11px 20px; border-radius: 9999px;
}
.cta a:hover { background: #EDEDF5; }

footer.site {
  margin-top: 72px; padding: 28px 0 48px;
  border-top: 1px solid var(--hairline);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px; color: var(--slate-500);
}
footer.site .wrap-wide { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer.site a { color: var(--slate-500); text-decoration: none; }
footer.site a:hover { color: var(--indigo); }