/* KANTULEVİ — Tolga Yalçın
   Siyah zemin, daktilo yazısı, tek bir yeşil vurgu. */

:root {
  --zemin: #0a0a0a;
  --yuzey: #131313;
  --cizgi: #262626;
  --metin: #e9e6df;
  --soluk: #8c8a84;
  --yesil: #10ff00;
  --baslik: "Montserrat", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --kap: 1200px;
  --orta: 700px;
  --bosluk: clamp(20px, 4vw, 40px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--zemin);
  color: var(--metin);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--yesil); }
:focus-visible { outline: 2px solid var(--yesil); outline-offset: 3px; }
::selection { background: var(--yesil); color: #000; }
h1, h2, h3, h4 { font-family: var(--baslik); margin: 0; line-height: 1.15; letter-spacing: -0.01em; }
p { margin: 0; }
.gizli, .atla:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.atla:focus { position: fixed; top: 8px; left: 8px; z-index: 99; background: var(--yesil); color: #000; padding: 8px 12px; }

.kap { width: 100%; max-width: calc(var(--kap) + 2 * var(--bosluk)); margin: 0 auto; padding: 0 var(--bosluk); }
.kap-orta { width: 100%; max-width: calc(var(--orta) + 2 * var(--bosluk)); margin: 0 auto; padding: 0 var(--bosluk); }
.kap-genis { width: 100%; max-width: calc(1000px + 2 * var(--bosluk)); margin: 0 auto; padding: 0 var(--bosluk); }

/* ---------- Üst ---------- */
.ust { border-bottom: 1px solid var(--cizgi); }
.ust-ic { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 76px; flex-wrap: wrap; }
.logo { font-family: var(--baslik); font-weight: 600; font-size: 20px; letter-spacing: .04em; text-decoration: none; white-space: nowrap; }
.menu { display: flex; gap: clamp(16px, 3vw, 32px); font-size: 14px; }
.menu a { text-decoration: none; color: var(--soluk); }
.menu a:hover { color: var(--metin); }
.menu a.aktif { color: var(--yesil); }
.menu a::before { content: "./"; opacity: .45; }

/* ---------- Ortak ---------- */
.bolum { padding: clamp(48px, 8vw, 96px) 0; }
.bolum + .bolum { border-top: 1px solid var(--cizgi); }
.bolum-ust { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 32px; }
.bolum-etiket { font-family: var(--mono); font-size: 13px; font-weight: 400; text-transform: lowercase; color: var(--soluk); letter-spacing: .02em; }
.bolum-etiket::before { content: "// "; color: var(--yesil); }
.bolum-baglanti { font-size: 14px; color: var(--soluk); text-decoration: none; }
.ust-bilgi { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: baseline; font-size: 13px; color: var(--soluk); margin-bottom: 12px; }
.etiket-kat { color: var(--yesil); text-decoration: none; text-transform: lowercase; }
.etiket-kat:hover { text-decoration: underline; }
.bos-mesaj { color: var(--soluk); padding: 24px 0; }

.dugme {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px;
  background: var(--metin); color: var(--zemin); border: 1px solid var(--metin);
  font-family: var(--mono); font-size: 14px; text-decoration: none; cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.dugme:hover { background: var(--yesil); border-color: var(--yesil); color: #000; }
.dugme-hayalet { background: transparent; color: var(--metin); border-color: var(--cizgi); }
.dugme-hayalet:hover { background: transparent; color: var(--yesil); border-color: var(--yesil); }

/* ---------- Görsel alanları ve yer tutucular ---------- */
.arka-plan { position: relative; isolation: isolate; overflow: hidden; }
.arka-medya { position: absolute; inset: 0; z-index: -2; }
.arka-medya img, .arka-medya video { width: 100%; height: 100%; object-fit: cover; max-width: none; }
.arka-ortu { position: absolute; inset: 0; z-index: -1; background: var(--zemin); }
.arka-bos {
  background: repeating-linear-gradient(135deg, transparent 0 14px, rgba(255,255,255,.025) 14px 15px);
}
.arka-etiket {
  position: absolute; top: 12px; right: 12px; z-index: 2; max-width: calc(100% - 24px);
  font-size: 11px; line-height: 1.4; color: var(--soluk); background: rgba(10,10,10,.85);
  border: 1px dashed rgba(16,255,0,.5); padding: 4px 8px;
}
.arka-etiket b { color: var(--yesil); font-weight: 500; }

.medya-kutusu { position: relative; overflow: hidden; background: var(--yuzey); }
.medya-kutusu > img, .medya-kutusu > video { width: 100%; height: 100%; object-fit: cover; }
.yer-tutucu {
  width: 100%; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: 10px; padding: 24px; text-align: center; border: 1px dashed #3a3a3a;
  background: repeating-linear-gradient(135deg, var(--yuzey) 0 14px, #171717 14px 28px);
}
.yt-ad { font-family: var(--baslik); font-size: clamp(28px, 4vw, 48px); font-weight: 800; color: var(--yesil); letter-spacing: -0.02em; }
.yt-bilgi { font-size: 13px; color: var(--metin); max-width: 30ch; }
.yt-oneri { font-size: 11px; color: var(--soluk); max-width: 34ch; }

/* ---------- Manşet ---------- */
.manset { padding: clamp(56px, 9vw, 120px) 0 clamp(56px, 8vw, 104px); border-bottom: 1px solid var(--cizgi); overflow: hidden; }
.manset-ic { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.manset-medya { aspect-ratio: 4 / 5; transform: rotate(1.2deg); box-shadow: 0 40px 80px -30px rgba(0,0,0,.9); transition: transform .5s cubic-bezier(.2,.8,.2,1); }
.manset-medya:not(.sok-kutusu):hover { transform: rotate(-0.6deg); }

/* Şok: kutu düzelir, ani bir flaşla ikinci video çıkar */
.sok-kutusu { cursor: pointer; }
.sok-kutusu:focus-visible { outline: 2px solid var(--yesil); outline-offset: 6px; }
.sok-video { position: absolute; inset: -2px; width: calc(100% + 4px); height: calc(100% + 4px); max-width: none; object-fit: cover; opacity: 0; filter: contrast(1.15); }
.sok-flas { position: absolute; inset: 0; background: #fff; opacity: 0; pointer-events: none; mix-blend-mode: screen; }
.sok-kutusu.sok { transform: rotate(0deg) scale(1.035); transition-duration: .18s; }
.sok-kutusu.sok .sok-video { opacity: 1; }
.sok-kutusu.sok .sok-flas { animation: flas .32s ease-out; }
@keyframes flas { 0% { opacity: .9; } 100% { opacity: 0; } }
.manset-baslik {
  font-size: clamp(72px, 13vw, 200px); font-weight: 800; line-height: .9; letter-spacing: -0.045em;
  margin-left: -0.04em;
}
.manset-404 .manset-baslik { font-size: clamp(72px, 17vw, 240px); }
.manset-baslik .nokta { color: var(--yesil); }
.manset-soz { margin-top: clamp(24px, 4vw, 40px); max-width: 34ch; font-size: clamp(16px, 2vw, 20px); line-height: 1.55; }
.imlec { display: inline-block; width: .6em; height: 1.1em; background: var(--yesil); vertical-align: text-bottom; margin-left: 4px; animation: yanip 1.1s steps(1) infinite; }
@keyframes yanip { 50% { opacity: 0; } }
.manset-404 .yok-baglantilar { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Kartlar ---------- */
.kartlar { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(40px, 5vw, 64px) clamp(24px, 4vw, 48px); }
.kart-gorsel { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--yuzey); margin-bottom: 20px; }
.kart-gorsel img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.35) contrast(1.05); transition: filter .4s, transform .6s; }
.kart:hover .kart-gorsel img { filter: none; transform: scale(1.025); }
.kapaksiz { display: grid; place-items: center; height: 100%; font-family: var(--baslik); font-size: 96px; font-weight: 800; color: var(--cizgi); }
.kart-baslik { font-size: clamp(22px, 2.4vw, 28px); font-weight: 700; margin-bottom: 10px; }
.kart-baslik a { text-decoration: none; }
.kart-ozet { color: var(--soluk); font-size: 15px; }

.kartlar-3 { grid-template-columns: repeat(3, 1fr); margin-top: clamp(56px, 7vw, 88px); }
.kartlar-3 .kart-baslik { font-size: clamp(20px, 2vw, 24px); }
.kartlar-3 .kart-ozet { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.tumu-alt { margin-top: clamp(48px, 6vw, 72px); text-align: center; }
.kart-buyuk { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; }
.kart-buyuk .kart-gorsel { margin-bottom: 0; aspect-ratio: 4 / 3; }
.kart-buyuk .kart-baslik { font-size: clamp(32px, 4.6vw, 56px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 18px; }
.kart-buyuk .kart-ozet { font-size: 16px; color: var(--metin); opacity: .8; }

/* ---------- Dizin (satır listesi) ---------- */
.dizin { list-style: none; margin: clamp(48px, 7vw, 80px) 0 0; padding: 0; border-top: 1px solid var(--cizgi); }
.bolum-liste .dizin { margin-top: 0; }
.satir a {
  display: grid; grid-template-columns: 110px 1fr auto 24px; gap: 20px; align-items: baseline;
  padding: 20px 0; border-bottom: 1px solid var(--cizgi); text-decoration: none;
}
.satir-tarih, .satir-kat { font-size: 13px; color: var(--soluk); }
.satir-kat { text-transform: lowercase; }
.satir-baslik { font-family: var(--baslik); font-size: clamp(18px, 2vw, 22px); font-weight: 600; }
.satir-ok { color: var(--soluk); transition: transform .2s, color .2s; }
.satir a:hover .satir-baslik, .satir a:hover .satir-ok { color: var(--yesil); }
.satir a:hover .satir-ok { transform: translateX(4px); }

/* ---------- Sayfa başı (notlar, kitaplar, ara) ---------- */
.sayfa-bas { padding: clamp(56px, 9vw, 112px) 0 clamp(32px, 4vw, 48px); }
.sayfa-baslik { font-size: clamp(44px, 8vw, 96px); font-weight: 800; letter-spacing: -0.035em; line-height: .95; }
.sayfa-bas .bolum-etiket { margin-bottom: 12px; }
.sayfa-alt { margin-top: 20px; color: var(--soluk); }
.kategori-cubugu { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.kategori-cubugu a { font-size: 13px; padding: 6px 12px; border: 1px solid var(--cizgi); text-decoration: none; color: var(--soluk); }
.kategori-cubugu a:hover { color: var(--metin); border-color: var(--soluk); }
.kategori-cubugu a.aktif { color: #000; background: var(--yesil); border-color: var(--yesil); }
.kategori-cubugu sup { font-size: 10px; opacity: .7; }
.bolum-liste { padding-top: 0; }

.sayfalama { display: flex; justify-content: space-between; align-items: center; margin-top: 64px; padding-top: 24px; border-top: 1px solid var(--cizgi); font-size: 14px; }
.sayfalama a { text-decoration: none; }
.sayfalama .pasif { color: var(--cizgi); }
.sayfa-no { color: var(--soluk); }

.arama { display: flex; margin-top: 32px; border-bottom: 2px solid var(--metin); max-width: 720px; }
.arama:focus-within { border-color: var(--yesil); }
.arama input { flex: 1; min-width: 0; background: none; border: 0; color: var(--metin); font: inherit; font-size: clamp(20px, 3vw, 28px); padding: 12px 0; outline: none; }
.arama input::placeholder { color: var(--cizgi); }
.arama button { background: none; border: 0; color: var(--soluk); font: inherit; cursor: pointer; padding: 0 0 0 16px; }
.arama button:hover { color: var(--yesil); }
.sonuc-sayisi { margin-top: 20px; color: var(--soluk); font-size: 14px; }

/* ---------- Yazı ---------- */
.onizleme-seridi { background: var(--yesil); color: #000; text-align: center; padding: 10px 16px; font-size: 14px; }
.yazi-bas { padding-top: clamp(56px, 9vw, 112px); padding-bottom: 40px; }
.yazi-baslik { font-size: clamp(36px, 6.4vw, 68px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.02; overflow-wrap: break-word; }
.yazi-ozet { margin-top: 24px; font-size: 17px; color: var(--soluk); font-style: italic; }
.yazi-kapak { margin: 8px auto clamp(40px, 6vw, 64px); }
.yazi-kapak img { width: 100%; max-height: 640px; object-fit: cover; }

.yazi-govde { font-size: 17px; line-height: 1.8; overflow-wrap: break-word; }
.yazi-govde > * + * { margin-top: 1.2em; }
.yazi-govde h2, .yazi-govde h3, .yazi-govde h4 { margin-top: 1.8em; line-height: 1.25; }
.yazi-govde h2 { font-size: 30px; font-weight: 700; }
.yazi-govde h3 { font-size: 24px; font-weight: 600; }
.yazi-govde h4 { font-size: 20px; font-weight: 600; }
.yazi-govde a { color: var(--yesil); }
.yazi-govde a:hover { color: var(--metin); }
.yazi-govde strong, .yazi-govde b { font-weight: 500; color: #fff; }
.yazi-govde blockquote { margin-left: 0; margin-right: 0; padding-left: 24px; border-left: 2px solid var(--yesil); font-style: italic; color: var(--metin); }
.yazi-govde hr { border: 0; height: 1px; background: var(--cizgi); margin: 2.4em 0; }
.yazi-govde ul, .yazi-govde ol { padding-left: 1.4em; }
.yazi-govde li + li { margin-top: .4em; }
.yazi-govde figure { margin-left: 0; margin-right: 0; }
.yazi-govde figure img, .yazi-govde > img { width: 100%; }
.yazi-govde figcaption { font-size: 13px; color: var(--soluk); margin-top: 8px; }
.yazi-govde .o { text-align: center; }
.yazi-govde .j { text-align: justify; hyphens: auto; }
.yazi-govde .r { text-align: right; }
@media (min-width: 900px) {
  .yazi-govde figure { margin-left: -80px; margin-right: -80px; }
}

.yazi-alt { padding-top: 56px; padding-bottom: clamp(64px, 10vw, 120px); }
.etiketler { list-style: none; padding: 0; margin: 0 0 40px; display: flex; flex-wrap: wrap; gap: 8px; }
.etiketler a { font-size: 13px; color: var(--soluk); text-decoration: none; border: 1px solid var(--cizgi); padding: 4px 10px; }
.etiketler a:hover { color: var(--yesil); border-color: var(--yesil); }
.komsu { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; border-top: 1px solid var(--cizgi); padding-top: 24px; }
.komsu a { text-decoration: none; font-family: var(--baslik); font-weight: 600; font-size: 18px; line-height: 1.3; }
.komsu a span { display: block; font-family: var(--mono); font-weight: 400; font-size: 13px; color: var(--soluk); margin-bottom: 6px; }
.komsu-sonraki { text-align: right; grid-column: 2; }

/* ---------- Kitaplar ---------- */
.kitap-tanitim { display: grid; grid-template-columns: minmax(180px, 300px) 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.kitap-kapak img { width: 100%; box-shadow: 0 30px 60px -20px rgba(0,0,0,.9); transition: transform .4s; }
.kitap-kapak:hover img { transform: rotate(-1.5deg) translateY(-4px); }
.kitap-ad { font-size: clamp(48px, 8vw, 96px); font-weight: 800; letter-spacing: -0.04em; margin: 16px 0 8px; }
.kitap-bilgi { color: var(--soluk); font-size: 14px; }
.kitap-kisa { margin: 24px 0 32px; font-size: 18px; max-width: 40ch; }

.kitap { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.kitap + .kitap { margin-top: 96px; padding-top: 96px; border-top: 1px solid var(--cizgi); }
.kitap-kapaklar { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.kitap-kapaklar img:only-child { grid-column: 1 / -1; max-width: 360px; }
.kitap-yazi .kitap-ad { margin-top: 0; }
.kitap-yazi p + p, .kitap-yazi .kitap-bilgi + p { margin-top: 1.1em; }
.kitap-yazi .kitap-bilgi + p { margin-top: 24px; }
.magazalar { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.magazalar .bolum-etiket { width: 100%; margin-bottom: 4px; }

/* ---------- Substack ---------- */
.substack { display: grid; grid-template-columns: minmax(0, 420px) 1fr; align-items: center; gap: clamp(32px, 6vw, 80px); }
.substack-medya { aspect-ratio: 4 / 3; }
.substack-yazi { font-size: clamp(17px, 2vw, 21px); max-width: 44ch; margin: 16px 0 28px; }

/* Başlıkta görsel olan sayfalar */
.sayfa-bas-gorselli { padding: clamp(96px, 14vw, 180px) 0 clamp(48px, 6vw, 72px); border-bottom: 1px solid var(--cizgi); margin-bottom: clamp(48px, 6vw, 72px); }
.bolum-kitap.arka-plan { border-top: 0; }
.alt.arka-plan { padding-top: clamp(80px, 11vw, 140px); }

/* ---------- Alt ---------- */
.alt { border-top: 1px solid var(--cizgi); padding: clamp(56px, 8vw, 96px) 0 40px; }
.alt-soz { font-family: var(--baslik); font-weight: 600; font-size: clamp(22px, 3.2vw, 36px); line-height: 1.25; letter-spacing: -0.015em; max-width: 26em; }
.alt-satir { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; margin-top: clamp(48px, 7vw, 80px); padding-top: 24px; border-top: 1px solid var(--cizgi); }
.alt-logo { font-family: var(--baslik); font-weight: 600; letter-spacing: .04em; }
.alt-menu { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 14px; }
.alt-menu a { text-decoration: none; color: var(--soluk); }
.alt-menu a:hover { color: var(--yesil); }
.telif { margin-top: 16px; font-size: 12px; color: var(--soluk); }

/* ---------- Duyarlı ---------- */
@media (max-width: 1024px) {
  .kartlar-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .kartlar, .kartlar-3 { grid-template-columns: 1fr; }
  .manset-ic { grid-template-columns: 1fr; }
  .manset-medya { aspect-ratio: 4 / 3; transform: none; }
  .manset-baslik { font-size: clamp(72px, 22vw, 160px); }
  .substack { grid-template-columns: 1fr; }
  .kart-buyuk { grid-template-columns: 1fr; }
  .kart-buyuk .kart-gorsel { aspect-ratio: 16 / 10; }
  .kitap-tanitim, .kitap { grid-template-columns: 1fr; }
  .kitap-tanitim .kitap-kapak { max-width: 240px; }
  .substack { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 600px) {
  .ust-ic { min-height: 64px; padding-top: 12px; padding-bottom: 12px; }
  .logo { font-size: 17px; }
  .menu { font-size: 13px; gap: 14px; }
  .menu a::before { content: none; }
  .satir a { grid-template-columns: 1fr 20px; gap: 4px 12px; }
  .satir-tarih { grid-column: 1; grid-row: 1; }
  .satir-baslik { grid-column: 1; grid-row: 2; }
  .satir-kat { display: none; }
  .satir-ok { grid-column: 2; grid-row: 1 / 3; align-self: center; }
  .yazi-govde { font-size: 16px; }
  .yazi-govde .j { text-align: left; }
  .komsu { grid-template-columns: 1fr; }
  .komsu-sonraki { grid-column: 1; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Görselli başlıklarda yazının arkası soldan koyulaşsın, kalabalık görsel okunurluğu bozmasın */
.sayfa-bas-gorselli::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, rgba(10,10,10,.82) 0%, rgba(10,10,10,.55) 45%, rgba(10,10,10,.1) 100%);
}
.sayfa-bas-gorselli .sayfa-baslik, .sayfa-bas-gorselli .sayfa-alt { text-shadow: 0 2px 18px rgba(0,0,0,.8); }
.sayfa-bas-gorselli .sayfa-alt { color: var(--metin); }
.sayfa-bas-gorselli .kategori-cubugu a:not(.aktif) { background: rgba(10,10,10,.7); color: var(--metin); }
@media (max-width: 600px) {
  .sayfa-bas-gorselli::after { background: linear-gradient(0deg, rgba(10,10,10,.85) 0%, rgba(10,10,10,.5) 100%); }
}