/* Demo 2: "İktisat gözlemevi"
   Aydınlık porselen zemin, mürekkep lacivert metin; tek cesur öge arka plandaki parçacık sahnesi.
   Arayüz sakin ve kesin: ince çizgiler, grafik ekseni gibi bir menü, şekil notları. */

:root {
  --porselen: #eef1f5;
  --porselen-saydam: rgb(238 241 245 / 0.78);
  --sis: #e2e7ee;
  --murekkep: #0d1b2e;
  --soluk: #4a5970;
  --cizgi: #c8d1dd;
  --kobalt: #2440f0;
  --kobalt-koyu: #1a2fc0;
  --turkuaz: #00a396;
  --kehribar: #ff8a1f;
  --kehribar-koyu: #b35a00;
  --arduvaz: #8b9ab3;

  --goruntu: "Unbounded", "Avenir Next", "Helvetica Neue", sans-serif;
  --metin: "Onest", "Helvetica Neue", Arial, sans-serif;

  --t-xs: 0.8125rem;
  --t-sm: 0.875rem;
  --t-md: 1.0625rem;
  --t-lg: 1.25rem;
  --t-xl: 1.5rem;

  --ust: 68px;
  --yay: cubic-bezier(0.7, 0, 0.2, 1);
  --cikis: cubic-bezier(0.2, 0.8, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--ust) + 20px);
  background: var(--porselen);
}
body {
  margin: 0;
  min-height: 100vh;
  color: var(--murekkep);
  font-family: var(--metin);
  font-size: var(--t-md);
  line-height: 1.6;
  font-variant-numeric: lining-nums;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { margin: 0; font-weight: 400; line-height: 1.15; }
p { margin: 0; }
img { max-width: 100%; display: block; }
a { color: var(--kobalt); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
button { font: inherit; color: inherit; }
a, button, input, textarea, label { -webkit-tap-highlight-color: transparent; }
/* Girişte yatay parmak hareketi küreyi döndürür; dikey hareket ve yakınlaştırma tarayıcıda kalır */
html[data-sayfa="giris"], html[data-sayfa="giris"] body { touch-action: pan-y pinch-zoom; }
:focus-visible { outline: 2px solid var(--kobalt); outline-offset: 3px; border-radius: 2px; }
main:focus { outline: none; }
.gizli-metin { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.atla {
  position: fixed; left: 16px; top: 12px; z-index: 50;
  transform: translateY(-200%);
  background: var(--murekkep); color: var(--porselen);
  padding: 10px 14px; border-radius: 8px; font-weight: 500; text-decoration: none;
}
.atla:focus { transform: none; }

/* ---------- Katmanlar ---------- */
#sahne { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.etiket-katmani { position: fixed; inset: 0; z-index: 1; pointer-events: none; overflow: hidden; }
#sayfa { position: relative; z-index: 2; pointer-events: none; display: flow-root; transition: opacity 0.28s, filter 0.28s, transform 0.28s var(--cikis); }
#sayfa > * { pointer-events: auto; }
body.kure-tutulur { cursor: grab; }
body.kure-suruklenir, body.kure-suruklenir * { cursor: grabbing !important; user-select: none; }

/* ---------- Üst şerit ---------- */
.ust {
  position: fixed; inset: 0 0 auto; z-index: 10;
  height: var(--ust);
  display: flex; align-items: center; gap: 40px;
  padding: 0 clamp(20px, 4vw, 48px);
  background: linear-gradient(var(--porselen) 35%, rgb(238 241 245 / 0));
}
.marka {
  font-family: var(--goruntu); font-weight: 500; font-size: 0.9375rem; letter-spacing: 0.01em;
  color: var(--murekkep); text-decoration: none; white-space: nowrap;
  margin-right: auto;
}

/* Menü bir grafik ekseni: çizgi, çentikler ve kayan imleç */
.eksen { position: relative; }
.eksen ol { list-style: none; margin: 0; padding: 0; display: flex; position: relative; }
.eksen ol::before {
  content: ""; position: absolute; left: 0; right: 0; top: 7px; height: 1px;
  background: var(--murekkep); opacity: 0.28;
}
.eksen li { position: relative; }
.eksen a {
  position: relative; display: block;
  padding: 18px 16px 6px;
  font-size: var(--t-sm); font-weight: 500; letter-spacing: 0.005em;
  color: var(--soluk); text-decoration: none; white-space: nowrap;
}
.eksen a::before {
  content: ""; position: absolute; top: 3px; left: 50%; width: 1px; height: 9px;
  background: currentColor; opacity: 0.6;
}
.eksen a:hover, .eksen a[aria-current="page"] { color: var(--murekkep); }
.eksen__imlec {
  position: absolute; top: 3px; left: 0; width: 9px; height: 9px; border-radius: 50%;
  background: var(--kobalt); box-shadow: 0 0 0 4px rgb(36 64 240 / 0.14);
  transform: translateX(calc(var(--imlec-x, -40px) - 4.5px));
  opacity: 0;
}
.eksen.hazir .eksen__imlec { opacity: 1; transition: transform 0.75s var(--yay), opacity 0.3s; }

.ust__arac { display: flex; align-items: center; gap: 12px; }
.ara {
  display: inline-flex; align-items: center; gap: 10px;
  height: 36px; padding: 0 8px 0 14px;
  background: rgb(255 255 255 / 0.55); border: 1px solid var(--cizgi); border-radius: 999px;
  font-size: var(--t-sm); font-weight: 500; color: var(--murekkep); cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.ara:hover { border-color: var(--murekkep); background: #fff; }
kbd {
  font-family: var(--metin); font-size: 0.75rem; font-weight: 500; color: var(--soluk);
  border: 1px solid var(--cizgi); border-radius: 6px; padding: 1px 6px; background: var(--porselen);
}
.dil { display: flex; border: 1px solid var(--cizgi); border-radius: 999px; padding: 2px; background: rgb(255 255 255 / 0.55); }
.dil button {
  border: 0; background: none; cursor: pointer; border-radius: 999px;
  padding: 3px 10px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em; color: var(--soluk);
}
.dil button[aria-pressed="true"] { background: var(--murekkep); color: var(--porselen); }

/* ---------- İçerik sütunu ---------- */
.icerik {
  width: min(47vw, 700px);
  margin-left: clamp(20px, 5.5vw, 96px);
  padding: calc(var(--ust) + clamp(48px, 9vh, 112px)) 0 140px;
}

/* Giriş ve çıkış */
#sayfa.cikis { opacity: 0; filter: blur(6px); transform: translateY(-10px); }
[data-giris] {
  opacity: 0; transform: translateY(18px); filter: blur(8px);
  transition: opacity 0.7s var(--cikis), transform 0.9s var(--cikis), filter 0.7s var(--cikis);
  transition-delay: calc(var(--sira, 0) * 80ms + 120ms);
}
#sayfa.acik [data-giris] { opacity: 1; transform: none; filter: none; }
#sayfa.bitti [data-giris] { opacity: 1; transform: none; filter: none; transition: none; }
[data-cozum] { display: inline-block; }

/* Sayfa başlıkları */
.sayfa-bas { display: grid; gap: 18px; margin-bottom: 40px; }
.sayfa-bas h1 {
  font-family: var(--goruntu); font-weight: 300;
  font-size: clamp(2.5rem, 1.4rem + 3.6vw, 4.5rem);
  letter-spacing: -0.035em; line-height: 1;
}
.sayfa-bas__giris { color: var(--soluk); font-size: 1.125rem; line-height: 1.6; max-width: 58ch; }

/* ---------- Giriş sayfası ---------- */
.giris__durum {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: var(--t-sm); font-weight: 500; color: var(--soluk);
  padding: 7px 14px 7px 12px; border: 1px solid var(--cizgi); border-radius: 999px;
  background: rgb(255 255 255 / 0.5);
}
.nabiz { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--kehribar); flex: none; }
.nabiz::after {
  content: ""; position: absolute; inset: -5px; border-radius: 50%;
  border: 1.5px solid var(--kehribar); opacity: 0;
  animation: nabiz 2.4s var(--cikis) infinite;
}
@keyframes nabiz { 0% { transform: scale(0.4); opacity: 0.9; } 100% { transform: scale(1.6); opacity: 0; } }

.giris__ad {
  margin-top: 28px;
  font-family: var(--goruntu); font-weight: 300;
  font-size: clamp(3.4rem, 1rem + 7.4vw, 8.4rem);
  line-height: 0.92; letter-spacing: -0.045em;
  margin-left: -0.05em;
}
.giris__ad span { display: block; }
.giris__ad span + span { padding-left: 0.62em; }
.giris__rol { margin-top: 26px; font-size: var(--t-lg); font-weight: 500; color: var(--kobalt); }
.giris__ozet { margin-top: 12px; max-width: 38ch; font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem); line-height: 1.5; color: var(--murekkep); }

.kapilar { list-style: none; margin: 56px 0 0; padding: 0; border-top: 1px solid var(--cizgi); max-width: 560px; }
.kapilar li { border-bottom: 1px solid var(--cizgi); }
.kapi {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 2px;
  padding: 16px 4px 16px 0; text-decoration: none; color: var(--murekkep);
}
.kapi__ad { font-family: var(--goruntu); font-weight: 400; font-size: 1.25rem; letter-spacing: -0.01em; transition: transform 0.45s var(--cikis), color 0.2s; }
.kapi__acik { font-size: var(--t-sm); color: var(--soluk); transition: transform 0.45s var(--cikis); }
.kapi::after {
  content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: 100%;
  background: var(--kobalt); transform: scaleX(0); transform-origin: left; transition: transform 0.55s var(--yay);
}
.kapi:hover .kapi__ad, .kapi:focus-visible .kapi__ad { transform: translateX(10px); color: var(--kobalt); }
.kapi:hover .kapi__acik, .kapi:focus-visible .kapi__acik { transform: translateX(10px); }
.kapi:hover::after, .kapi:focus-visible::after { transform: scaleX(1); }

/* ---------- Araştırma ---------- */
.kontrol {
  display: grid; gap: 16px;
  padding: 18px; margin-bottom: 36px;
  background: rgb(255 255 255 / 0.55); border: 1px solid var(--cizgi); border-radius: 16px;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.arama { position: relative; display: block; }
.arama svg { position: absolute; left: 14px; top: 50%; width: 18px; height: 18px; transform: translateY(-50%); color: var(--soluk); }
.arama input {
  width: 100%; height: 46px; padding: 0 14px 0 42px;
  font: inherit; font-size: 1rem; color: var(--murekkep);
  background: #fff; border: 1px solid var(--cizgi); border-radius: 10px;
}
.arama input:focus-visible { outline: 2px solid var(--kobalt); outline-offset: 0; border-color: var(--kobalt); }
.kontrol__gruplar { display: grid; gap: 16px; }
.kontrol__ac { display: none; }
.kontrol__grup { border: 0; margin: 0; padding: 0; min-width: 0; }
.kontrol__grup legend { padding: 0; margin-bottom: 8px; font-size: var(--t-xs); font-weight: 600; color: var(--soluk); }

.segment { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px; background: var(--sis); border-radius: 12px; }
.segment button {
  display: inline-flex; align-items: center; gap: 7px;
  border: 0; background: none; cursor: pointer;
  padding: 6px 12px; border-radius: 9px; font-size: var(--t-sm); font-weight: 500; color: var(--soluk);
  transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}
.segment button span { font-variant-numeric: tabular-nums; color: var(--arduvaz); font-weight: 500; }
.segment button:hover { color: var(--murekkep); }
.segment button[aria-checked="true"] { background: #fff; color: var(--murekkep); box-shadow: 0 1px 2px rgb(13 27 46 / 0.12); }
.segment button[aria-checked="true"] span { color: var(--soluk); }

.nokta-isaret { display: inline-block; width: 8px; height: 8px; border-radius: 2px; flex: none; background: var(--renk, var(--arduvaz)); }
.nokta-isaret--makale, .kayit--makale .nokta-isaret { --renk: var(--kobalt); }
.nokta-isaret--kitap, .kayit--kitap .nokta-isaret { --renk: var(--kehribar); }
.nokta-isaret--bolum, .kayit--bolum .nokta-isaret { --renk: var(--turkuaz); }
.nokta-isaret--bildiri, .kayit--bildiri .nokta-isaret { --renk: var(--arduvaz); }

.cipler { display: flex; flex-wrap: wrap; gap: 6px; }
.cip {
  display: inline-flex; align-items: baseline; gap: 6px;
  border: 1px solid var(--cizgi); background: rgb(255 255 255 / 0.6); border-radius: 999px;
  padding: 4px 12px; cursor: pointer; font-size: var(--t-sm); line-height: 1.4;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.cip span { color: var(--soluk); font-variant-numeric: tabular-nums; }
.cip:hover { border-color: var(--murekkep); }
.cip[aria-pressed="true"] { background: var(--kobalt); border-color: var(--kobalt); color: #fff; }
.cip[aria-pressed="true"] span { color: rgb(255 255 255 / 0.78); }
.cip:disabled { opacity: 0.38; cursor: default; }
.kontrol__alt { display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: var(--t-sm); color: var(--soluk); }

.metin-dugme {
  background: none; border: 0; padding: 0; cursor: pointer;
  font-size: var(--t-sm); font-weight: 500; color: var(--kobalt);
  text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.22em;
}
.metin-dugme:hover { text-decoration-thickness: 2px; }

.yil-grubu + .yil-grubu { margin-top: 28px; }
.yil-grubu__yil {
  position: sticky; top: var(--ust); z-index: 1;
  display: flex; align-items: baseline; gap: 12px;
  padding: 10px 0 8px;
  font-family: var(--goruntu); font-weight: 300; font-size: 1.75rem; letter-spacing: -0.02em;
  background: linear-gradient(var(--porselen) 70%, rgb(238 241 245 / 0));
}
.yil-grubu__yil span { font-family: var(--metin); font-size: var(--t-sm); font-weight: 500; color: var(--soluk); letter-spacing: 0; }
.yil-grubu__yil:focus { outline: none; }
.kayitlar { list-style: none; margin: 0; padding: 0; }
.kayit {
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 18px;
  padding: 18px 16px 20px; margin: 0 -16px;
  border-top: 1px solid var(--cizgi); border-radius: 0;
  transition: background 0.25s, border-radius 0.25s;
}
.kayit:hover, .kayit:focus-within { background: rgb(255 255 255 / 0.62); border-radius: 12px; border-top-color: transparent; }
.kayit:hover + .kayit, .kayit:focus-within + .kayit { border-top-color: transparent; }
.kayit--kapakli { grid-template-columns: 52px minmax(0, 1fr); }
.kayit__kapak { width: 52px; height: auto; aspect-ratio: 2 / 3; object-fit: cover; border-radius: 4px; box-shadow: 0 6px 16px -8px rgb(13 27 46 / 0.45); }
.kayit__tur { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: var(--t-xs); font-weight: 500; color: var(--soluk); }
.kayit__odul { color: var(--kehribar-koyu); font-weight: 600; }
.kayit__durum { padding: 1px 8px; border-radius: 999px; background: rgb(0 163 150 / 0.12); color: #00675f; font-weight: 600; }
.kayit__baslik { margin-top: 6px; font-size: 1.125rem; font-weight: 500; line-height: 1.38; letter-spacing: -0.005em; text-wrap: pretty; }
.kayit__yazar { margin-top: 6px; font-size: var(--t-sm); }
.kayit__yayin { margin-top: 3px; font-size: var(--t-sm); color: var(--soluk); }
.kayit__eylem { margin-top: 12px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 20px; font-size: var(--t-sm); font-weight: 500; }
.acici { display: inline-flex; align-items: center; gap: 6px; }
.acici svg { width: 10px; height: 10px; transition: transform 0.3s var(--yay); }
.acici[aria-expanded="true"] svg { transform: rotate(180deg); }
.kayit__ozet { margin-top: 16px; padding: 16px 18px; background: rgb(255 255 255 / 0.7); border: 1px solid var(--cizgi); border-radius: 12px; font-size: 1rem; line-height: 1.72; animation: acil 0.45s var(--cikis); }
.kayit__ozet[hidden] { display: none; }
.kayit__ozet h4 { font-size: var(--t-xs); font-weight: 600; color: var(--soluk); margin-bottom: 8px; }
.kayit__ozet p + p { margin-top: 0.75em; }
.kunye { margin-top: 14px !important; padding-top: 12px; border-top: 1px dashed var(--cizgi); font-size: var(--t-sm); color: var(--soluk); line-height: 1.55; }
.kunye b { color: var(--murekkep); font-weight: 600; }
@keyframes acil { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.bos { padding: 28px 0; color: var(--soluk); max-width: 48ch; border-top: 1px solid var(--cizgi); }

/* ---------- Ders notları ---------- */
.ders-listesi { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--cizgi); }
.ders {
  position: relative;
  display: grid; grid-template-columns: 64px minmax(0, 1fr) auto; gap: 8px 20px; align-items: center;
  padding: 20px 16px; margin: 0 -16px;
  border-bottom: 1px solid var(--cizgi);
  transition: background 0.3s;
}
.ders::before {
  content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 2px; border-radius: 2px;
  background: var(--kobalt); transform: scaleY(0); transition: transform 0.45s var(--yay);
}
.ders--etkin { background: rgb(255 255 255 / 0.6); }
.ders--etkin::before { transform: scaleY(1); }
.ders:focus { outline: none; }
.ders:focus-visible { outline: 2px solid var(--kobalt); outline-offset: -2px; }
.ders__no { font-family: var(--goruntu); font-weight: 300; font-size: 2rem; color: var(--arduvaz); letter-spacing: -0.03em; transition: color 0.3s; }
.ders--etkin .ders__no { color: var(--kobalt); }
.ders__bolum { font-size: var(--t-xs); font-weight: 600; color: var(--soluk); }
.ders__baslik { margin-top: 2px; font-size: 1.375rem; font-weight: 500; letter-spacing: -0.01em; line-height: 1.2; }
.ders__alt { margin-top: 2px; font-size: var(--t-sm); color: var(--soluk); font-style: italic; }
.ders__tarih { margin-top: 4px; font-size: var(--t-xs); color: var(--soluk); }
.ders__eylem { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; font-size: var(--t-sm); font-weight: 500; }
.ders--sirada .ders__baslik { color: var(--soluk); }

.dugme {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 42px; padding: 0 18px;
  background: var(--kobalt); color: #fff; border: 0; border-radius: 10px; cursor: pointer;
  font-size: var(--t-sm); font-weight: 600; text-decoration: none; white-space: nowrap;
  box-shadow: 0 8px 20px -10px rgb(36 64 240 / 0.7);
  transition: background 0.2s, transform 0.2s var(--cikis), box-shadow 0.2s;
}
.dugme:hover { background: var(--kobalt-koyu); transform: translateY(-1px); box-shadow: 0 12px 24px -10px rgb(36 64 240 / 0.75); }
.dugme:active { transform: none; }
.dugme:disabled { opacity: 0.6; cursor: default; transform: none; }

/* ---------- Hakkımda ---------- */
.hakkimda__metin p { font-size: 1.1875rem; line-height: 1.7; max-width: 60ch; }
.hakkimda__metin p + p { margin-top: 1em; }
.blok { margin-top: 56px; }
.blok h2 { font-family: var(--goruntu); font-weight: 400; font-size: 1.125rem; letter-spacing: -0.01em; padding-bottom: 12px; border-bottom: 1px solid var(--murekkep); }
.blok > p { margin-top: 14px; }
/* Özgeçmiş */
.yalniz-baski { display: none; }
.cv { margin-top: 64px; }
.cv-bas {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px 24px;
  padding-bottom: 16px; border-bottom: 1px solid var(--murekkep);
}
.cv-bas h2 { font-family: var(--goruntu); font-weight: 300; font-size: clamp(1.875rem, 1.3rem + 1.6vw, 2.75rem); letter-spacing: -0.035em; line-height: 1; }
.cv-arac { display: grid; justify-items: end; gap: 6px; }
.cv-arac .dugme { gap: 8px; }
.cv-arac .dugme svg { width: 16px; height: 16px; }
.cv-ipucu { font-size: var(--t-xs); color: var(--soluk); text-align: right; max-width: 32ch; }
.cv-bolum { margin-top: 40px; }
.cv-bolum h3 {
  font-family: var(--goruntu); font-weight: 400; font-size: 1.0625rem; letter-spacing: -0.01em;
  padding-bottom: 10px; border-bottom: 1px solid var(--cizgi); color: var(--kobalt);
}
.cv-liste { list-style: none; margin: 0; padding: 0; }
.cv-liste li {
  display: grid; grid-template-columns: 10.5rem minmax(0, 1fr); gap: 2px 24px;
  padding: 16px 0; border-bottom: 1px solid var(--cizgi);
}
.cv-liste--tarihsiz li { grid-template-columns: minmax(0, 1fr); }
.cv__tarih { display: flex; align-items: flex-start; align-self: start; gap: 8px; min-height: 1.5em; font-size: var(--t-sm); font-weight: 500; color: var(--soluk); font-variant-numeric: tabular-nums; }
.cv__tarih--devam { color: var(--kehribar-koyu); font-weight: 600; }
.cv__tarih .nabiz { width: 7px; height: 7px; margin-top: 0.55em; }
.cv__baslik { font-weight: 600; font-size: 1.0625rem; line-height: 1.4; }
.cv__yer { margin-top: 2px; font-size: var(--t-sm); color: var(--soluk); line-height: 1.5; }
.cv__not { margin-top: 6px; font-size: var(--t-sm); line-height: 1.55; }
.cv-yayin-ozet { margin-top: 14px; line-height: 1.6; }
.cv-ders-gruplari { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 28px; }
.cv-ders-gruplari h4 { margin-top: 16px; font-size: var(--t-xs); font-weight: 600; color: var(--soluk); }
.cv-dersler { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); }
.cv-dersler li { position: relative; padding: 10px 0 10px 18px; border-bottom: 1px solid var(--cizgi); font-weight: 500; }
.cv-dersler li::before { content: ""; position: absolute; left: 0; top: 50%; width: 7px; height: 7px; margin-top: -3.5px; border-radius: 2px; background: var(--kobalt); }
.cv-yayin-ozet a { display: inline-block; margin-left: 4px; font-weight: 500; }
.jel { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; }
.jel div { display: grid; grid-template-columns: 46px 1fr; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--cizgi); }
.jel dt { font-family: var(--goruntu); font-weight: 400; font-size: 0.875rem; color: var(--kobalt); padding-top: 2px; }
.jel dd { margin: 0; font-size: var(--t-sm); line-height: 1.5; }
.dipnot { font-size: var(--t-xs) !important; color: var(--soluk); }

/* ---------- İletişim ---------- */
.iletisim__ag { font-size: var(--t-lg); font-weight: 500; }
.form { display: grid; gap: 18px; max-width: 560px; }
.form__alan { display: grid; gap: 6px; }
.form label { font-size: var(--t-sm); font-weight: 600; }
.form input, .form textarea {
  width: 100%; font: inherit; font-size: 1.0625rem; color: var(--murekkep);
  background: rgb(255 255 255 / 0.82); border: 1px solid var(--cizgi); border-radius: 10px; padding: 11px 14px;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.form textarea { resize: vertical; min-height: 150px; }
.form input:focus-visible, .form textarea:focus-visible { outline: none; border-color: var(--kobalt); background: #fff; box-shadow: 0 0 0 4px rgb(36 64 240 / 0.14); }
.form [aria-invalid="true"] { border-color: #b3261e; }
.form__hata { color: #b3261e; font-size: var(--t-sm); }
.form__tuzak { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form .dugme { justify-self: start; }
.form__durum { font-size: var(--t-sm); color: var(--soluk); min-height: 1.5em; }

/* ---------- Şekil notu ve sahne etiketleri ---------- */
.sekil-notu {
  position: fixed; z-index: 3; right: clamp(16px, 2.5vw, 32px); bottom: 24px;
  width: min(380px, 30vw);
  padding: 12px 14px;
  font-size: 0.8125rem; line-height: 1.5; color: var(--soluk);
  background: rgb(238 241 245 / 0.72); border: 1px solid rgb(200 209 221 / 0.8); border-radius: 12px;
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  transition: opacity 0.16s;
}
.sekil-notu:empty { display: none; }
.sekil-notu b { color: var(--murekkep); font-weight: 600; }
.sekil-notu.degisiyor { opacity: 0; }
.sahnesiz .sekil-notu { display: none; }

.s-etiket {
  position: absolute; left: 0; top: 0; will-change: transform;
  font-family: var(--metin); white-space: nowrap;
  transition: opacity 0.35s;
}
.s-etiket.gizli { opacity: 0; pointer-events: none; }
button.s-etiket { pointer-events: auto; cursor: pointer; border: 0; background: none; padding: 0; text-align: left; }

.s-cizgiler { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.s-cizgiler polyline { fill: none; stroke: var(--murekkep); stroke-width: 1; opacity: 0.45; }
.s-etiket--sehir {
  display: grid; gap: 0;
  padding: 4px 8px; border-radius: 8px;
  background: rgb(238 241 245 / 0.7);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  transition: opacity 0.35s, background 0.2s;
}
.s-etiket--sehir b { font-size: 0.8125rem; font-weight: 600; color: var(--murekkep); }
.s-etiket--sehir span { font-size: 0.75rem; color: var(--soluk); }
.s-etiket--sehir i { font-size: 0.75rem; color: var(--kehribar-koyu); font-weight: 500; }
.s-etiket--sehir:hover, .s-etiket--sehir:focus-visible { background: #fff; }
.s-etiket--sehir:hover b, .s-etiket--sehir:focus-visible b { color: var(--kobalt); }

.s-etiket--yil {
  translate: -50% 0; margin-top: 6px;
  font-size: 0.75rem; font-weight: 500; color: var(--soluk); font-variant-numeric: tabular-nums;
  padding: 2px 6px; border-radius: 6px;
}
button.s-etiket--yil:hover, button.s-etiket--yil:focus-visible { color: var(--kobalt); background: #fff; }
.s-etiket--sayi { translate: -50% -100%; font-family: var(--goruntu); font-size: 0.75rem; color: var(--murekkep); }
.s-etiket--diyagram { translate: -50% -50%; font-size: 0.9375rem; font-style: italic; font-weight: 500; color: var(--murekkep); }
.s-etiket--diyagram sub { font-size: 0.7em; }
.s-etiket--eksen { color: var(--soluk); font-size: 0.875rem; }

/* ---------- Şekil penceresi (telefon) ---------- */
.sekil-pencere, .sekil-pencere-kapat { display: none; }

/* ---------- Komut paleti ---------- */
.komut {
  width: min(640px, 92vw); max-height: min(70vh, 620px);
  margin: 12vh auto auto; padding: 0;
  border: 1px solid var(--cizgi); border-radius: 18px;
  background: rgb(248 250 252 / 0.92); color: var(--murekkep);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  box-shadow: 0 30px 80px -24px rgb(13 27 46 / 0.4);
  overflow: hidden;
}
.komut[open] { display: flex; flex-direction: column; animation: komut-ac 0.28s var(--cikis); }
.komut::backdrop { background: rgb(13 27 46 / 0.18); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
@keyframes komut-ac { from { opacity: 0; transform: translateY(-10px) scale(0.98); } to { opacity: 1; transform: none; } }
.komut__alan { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--cizgi); }
.komut__alan svg { width: 20px; height: 20px; color: var(--soluk); flex: none; }
.komut__alan input { flex: 1; min-width: 0; border: 0; background: none; font: inherit; font-size: 1.125rem; color: var(--murekkep); outline: none; }
.komut__kapat {
  flex: none; min-height: 32px; padding: 0 12px;
  border: 1px solid var(--cizgi); border-radius: 8px; background: #fff; cursor: pointer;
  font-size: var(--t-xs); font-weight: 600; color: var(--soluk);
}
.komut__kapat:hover { color: var(--murekkep); border-color: var(--murekkep); }
.komut__sonuc { list-style: none; margin: 0; padding: 8px; overflow-y: auto; }
.komut__grup { padding: 10px 10px 4px; font-size: var(--t-xs); font-weight: 600; color: var(--soluk); }
.komut__oge { display: grid; gap: 1px; padding: 9px 12px; border-radius: 10px; cursor: pointer; }
.komut__oge[aria-selected="true"] { background: rgb(36 64 240 / 0.09); }
.komut__oge[aria-selected="true"] .komut__baslik { color: var(--kobalt); }
.komut__baslik { font-weight: 500; line-height: 1.35; }
.komut__alt { font-size: var(--t-xs); color: var(--soluk); }
.komut__bos { padding: 18px 12px; color: var(--soluk); }
.komut__ipucu { padding: 10px 18px; border-top: 1px solid var(--cizgi); font-size: var(--t-xs); color: var(--soluk); }

/* ---------- Not penceresi ---------- */
.pencere {
  width: min(1100px, 94vw); height: min(88vh, 900px); max-width: none; max-height: none;
  padding: 0; border: 1px solid var(--cizgi); border-radius: 18px; background: var(--porselen); color: var(--murekkep);
  box-shadow: 0 30px 80px -24px rgb(13 27 46 / 0.45);
  display: none; flex-direction: column; overflow: hidden;
}
.pencere[open] { display: flex; animation: komut-ac 0.3s var(--cikis); }
.pencere::backdrop { background: rgb(13 27 46 / 0.35); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.pencere__bas { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 20px; border-bottom: 1px solid var(--cizgi); }
.pencere__bas h2 { font-family: var(--goruntu); font-weight: 400; font-size: 1.125rem; }
.pencere__eylem { display: flex; gap: 20px; align-items: center; font-size: var(--t-sm); font-weight: 500; white-space: nowrap; }
.pencere iframe { flex: 1; width: 100%; border: 0; background: #fff; }

/* ---------- Bildirim ---------- */
.bildirim {
  position: fixed; left: 50%; bottom: 28px; z-index: 40;
  transform: translate(-50%, 12px); opacity: 0; pointer-events: none;
  background: var(--murekkep); color: var(--porselen);
  padding: 10px 16px; border-radius: 10px; font-size: var(--t-sm); font-weight: 500;
  transition: opacity 0.2s, transform 0.2s;
}
.bildirim.gorunur { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Sahnesiz (WebGL yok) ---------- */
.sahnesiz { background-image: radial-gradient(rgb(13 27 46 / 0.12) 1px, transparent 1.2px); background-size: 22px 22px; }
.sahnesiz #sahne { display: none; }

/* ---------- Duyarlı düzen ---------- */
@media (max-width: 1100px) {
  .ust { gap: 20px; }
  .eksen a { padding-inline: 11px; }
  .ara span { display: none; }
  .ara { padding-left: 10px; }
}

@media (max-width: 819px) {
  :root { --ust: 56px; --guvenli-ust: env(safe-area-inset-top, 0px); }
  html { scroll-padding-top: calc(var(--ust) + var(--guvenli-ust) + 16px); }
  /* Not: .ust'e backdrop-filter verilmez; içindeki .eksen'in position: fixed referansını bozar */
  .ust {
    gap: 12px; background: rgb(238 241 245 / 0.94);
    height: calc(var(--ust) + var(--guvenli-ust));
    padding: var(--guvenli-ust) max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  }
  .marka { font-size: 0.875rem; }
  .ara kbd { display: none; }
  .ara { width: 42px; height: 42px; padding: 0; justify-content: center; }
  .dil { padding: 3px; }
  .dil button { min-width: 40px; min-height: 36px; padding: 0 10px; }
  .ara span { display: inline; font-size: 0; }
  .ara::before {
    content: ""; width: 16px; height: 16px;
    background: currentColor;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='8.5' cy='8.5' r='5.5' fill='none' stroke='black' stroke-width='1.8'/%3E%3Cpath d='m13 13 4.5 4.5' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='8.5' cy='8.5' r='5.5' fill='none' stroke='black' stroke-width='1.8'/%3E%3Cpath d='m13 13 4.5 4.5' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
  }

  /* Menü ekranın altına iner: aynı eksen, başparmak yakınında */
  .eksen {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 11;
    padding: 6px 8px calc(8px + env(safe-area-inset-bottom));
    background: rgb(238 241 245 / 0.9); border-top: 1px solid var(--cizgi);
    -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  }
  .eksen ol { justify-content: space-between; }
  .eksen ol::before { top: 7px; }
  .eksen a { min-height: 48px; padding: 20px 6px 6px; font-size: 0.75rem; }
  .eksen a[aria-current="page"] { font-weight: 600; }
  .eksen__imlec { top: 9px; }

  .icerik {
    width: auto; margin: 47svh 0 0;
    padding: 32px 20px 120px;
    background: rgb(238 241 245 / 0.94);
    -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
    border-radius: 24px 24px 0 0;
    border-top: 1px solid var(--cizgi);
    min-height: 60svh;
  }
  .giris__durum { align-items: flex-start; border-radius: 14px; }
  .nabiz { margin-top: 7px; }
  .giris__ad { margin-top: 20px; }
  .kapilar { margin-top: 36px; }
  .sekil-notu {
    left: 12px; right: 12px; bottom: auto; top: calc(var(--ust) + var(--guvenli-ust) + 4px); width: auto;
    padding: 6px 10px; font-size: 0.75rem; background: rgb(238 241 245 / 0.6);
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;
  }
  .kaydirildi .sekil-notu { opacity: 0; pointer-events: none; }
  .yil-grubu__yil { top: calc(var(--ust) + var(--guvenli-ust)); }
  .jel { grid-template-columns: minmax(0, 1fr); }
  .cv-liste li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .cv-ders-gruplari { grid-template-columns: minmax(0, 1fr); }
  .cv-arac { justify-items: start; }
  .cv-ipucu { text-align: left; }
  .ders { grid-template-columns: 44px minmax(0, 1fr); align-items: start; }
  .ders__no { font-size: 1.5rem; }
  .ders__eylem { grid-column: 2; flex-direction: row; align-items: center; gap: 18px; }
  .pencere { width: 100vw; height: 100dvh; border-radius: 0; }
  .s-etiket--sehir span, .s-etiket--sehir i { display: none; }
  .s-etiket--sehir { min-height: 30px; padding: 6px 10px; align-content: center; }

  /* Dokunma hedefleri: en az ~40–44 px */
  .cip { min-height: 40px; padding: 8px 14px; align-items: center; }
  .segment button { min-height: 40px; }
  .kayit__eylem { gap: 0 18px; margin-top: 6px; }
  .kayit__eylem > * { display: inline-flex; align-items: center; min-height: 44px; }
  .kapi { padding-block: 18px; }
  .form input, .form textarea { min-height: 48px; }
  .dugme { min-height: 46px; }
  .ders__eylem a, .ders__eylem .dugme { min-height: 44px; display: inline-flex; align-items: center; }

  /* Araştırma: süzgeçler telefonda açılır panelde */
  .kontrol { padding: 12px; gap: 10px; margin-bottom: 24px; }
  .kontrol__ac {
    display: flex; align-items: center; gap: 10px; width: 100%; min-height: 46px; padding: 0 14px;
    background: #fff; border: 1px solid var(--cizgi); border-radius: 10px; cursor: pointer;
    font-weight: 600; font-size: 0.9375rem; color: var(--murekkep);
  }
  .kontrol__ac svg { width: 11px; height: 11px; margin-left: auto; transition: transform 0.3s var(--yay); }
  .kontrol__ac[aria-expanded="true"] svg { transform: rotate(180deg); }
  .kontrol__etkin { font-weight: 500; font-size: var(--t-xs); color: #fff; background: var(--kobalt); border-radius: 999px; padding: 2px 8px; }
  .kontrol__etkin:empty { display: none; }
  .kontrol__gruplar { display: none; }
  .kontrol.acik .kontrol__gruplar { display: grid; padding-top: 6px; animation: acil 0.35s var(--cikis); }
  .kontrol__alt { min-height: 28px; }

  /* Şekil penceresi: içerik şeklin üstüne çıkınca parçacıklar buraya yerleşir */
  .sekil-pencere:not([hidden]) {
    display: block; position: fixed; z-index: 5;
    top: calc(var(--ust) + var(--guvenli-ust) + 10px); right: 10px;
    width: min(50vw, 230px); aspect-ratio: 4 / 3; padding: 0;
    border: 1px solid var(--cizgi); border-radius: 16px; cursor: pointer;
    background: #f4f6f9;
    box-shadow: 0 18px 40px -18px rgb(13 27 46 / 0.5);
    animation: pencere-gir 0.4s var(--cikis);
  }
  .sekil-pencere-kapat:not([hidden]) {
    display: grid; place-items: center; position: fixed; z-index: 8;
    top: calc(var(--ust) + var(--guvenli-ust) + 4px); right: 4px;
    width: 32px; height: 32px; padding: 0; border-radius: 50%;
    border: 1px solid var(--cizgi); background: #fff; color: var(--murekkep); cursor: pointer;
    box-shadow: 0 4px 10px -4px rgb(13 27 46 / 0.35);
  }
  .sekil-pencere-kapat svg { width: 11px; height: 11px; }
  body.pip #sahne { z-index: 6; }
  body.pip .etiket-katmani { z-index: 7; }
  body.pip .sekil-notu {
    z-index: 8; opacity: 1; pointer-events: none;
    top: calc(var(--ust) + var(--guvenli-ust) + 10px + min(37.5vw, 172.5px) - 26px);
    left: auto; right: 10px; width: min(50vw, 230px);
    padding: 0 12px; background: none; border: 0;
    -webkit-backdrop-filter: none; backdrop-filter: none;
    font-size: 0.6875rem; line-height: 1.3; -webkit-line-clamp: 1; white-space: nowrap; text-overflow: ellipsis;
  }
  body.pip .s-etiket--diyagram { font-size: 0.6875rem; }
  body.pip .s-etiket--yil, body.pip .s-etiket--sayi { display: none; }
  @keyframes pencere-gir { from { opacity: 0; transform: translateY(-8px) scale(0.96); } to { opacity: 1; transform: none; } }
}

/* ---------- Yazdırma: özgeçmiş PDF'i ---------- */
@media print {
  @page { size: A4; margin: 15mm 16mm 16mm; }
  html, body { background: #fff !important; }
  body { color: #000; font-size: 10pt; line-height: 1.45; }
  #sahne, .etiket-katmani, .ust, .eksen, .sekil-notu, .sekil-pencere, .sekil-pencere-kapat,
  .bildirim, .atla, dialog, .yalniz-ekran, .cv-arac, .cv-bas { display: none !important; }
  .yalniz-baski { display: block !important; }
  #sayfa, [data-giris] { opacity: 1 !important; transform: none !important; filter: none !important; transition: none !important; }
  .icerik {
    width: auto !important; margin: 0 !important; padding: 0 !important; min-height: 0 !important;
    background: none !important; border: 0 !important; -webkit-backdrop-filter: none !important; backdrop-filter: none !important;
  }
  body[data-sayfa="hakkimda"] .sayfa-bas, body[data-sayfa="hakkimda"] .hakkimda__metin { display: none !important; }
  a { color: #000; text-decoration: none; }

  .cv { margin: 0; }
  .cv-baski-bas { padding-bottom: 8pt; border-bottom: 1pt solid #000; margin-bottom: 4pt; }
  .cv-baski-bas__ad { font-family: var(--goruntu); font-weight: 400; font-size: 22pt; letter-spacing: -0.03em; line-height: 1.1; }
  .cv-baski-bas__unvan { margin-top: 2pt; font-size: 11pt; }
  .cv-baski-bas__iletisim { margin-top: 4pt; display: flex; flex-wrap: wrap; gap: 0 14pt; font-size: 9pt; color: #333; }
  .cv-bolum { margin-top: 14pt; }
  .cv-bolum h3 { font-size: 11pt; color: #000; border-bottom: 0.6pt solid #000; padding-bottom: 3pt; break-after: avoid; }
  .cv-liste li { grid-template-columns: 30mm minmax(0, 1fr); gap: 0 10pt; padding: 5pt 0; border-bottom: 0.4pt solid #bbb; break-inside: avoid; }
  .cv__tarih, .cv__yer, .dipnot { color: #333 !important; font-size: 9pt; }
  .cv__tarih .nabiz { display: none; }
  .cv-liste--tarihsiz li { grid-template-columns: minmax(0, 1fr); }
  .cv__baslik { font-size: 10pt; }
  .cv__not { font-size: 9pt; margin-top: 2pt; }
  .jel { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 12pt; }
  .jel div { padding: 3pt 0; border-bottom: 0.4pt solid #bbb; grid-template-columns: 26pt 1fr; break-inside: avoid; }
  .jel dt { color: #000; font-size: 9pt; }
  .jel dd { font-size: 9pt; }
  .cv-yayin-ozet { margin-top: 5pt; }
  .cv-ders-gruplari { gap: 0 14pt; }
  .cv-ders-gruplari h4 { margin-top: 6pt; font-size: 9pt; color: #000; }
  .cv-dersler li { padding: 3pt 0 3pt 10pt; border-bottom: 0.4pt solid #bbb; font-size: 9.5pt; font-weight: 400; break-inside: avoid; }
  .cv-dersler li::before { width: 4pt; height: 4pt; margin-top: -2pt; background: #000; }
  .cv-yayin-tam h4 { margin-top: 8pt; font-size: 9.5pt; font-weight: 600; break-after: avoid; }
  .cv-kunyeler { margin: 3pt 0 0; padding-left: 14pt; font-size: 9pt; line-height: 1.4; }
  .cv-kunyeler li { margin-bottom: 3pt; break-inside: avoid; }
  .cv-guncel { margin-top: 12pt; font-size: 8pt; color: #555; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  [data-giris] { filter: none; transform: none; }
  html { scroll-behavior: auto; }
}