/* ============================================================
   SIRADIŞI KÜTÜPHANE KAFE
   Palet:  #EFE7D3 kağıt · #E4DAC0 kağıt-koyu · #23261F mürekkep
           #223B2E yeşil (raf) · #B8863B pirinç · #8C4A36 pas
   Tipografi: Fraunces (başlık) · Source Serif 4 (gövde) · IBM Plex Mono (etiket)
   ============================================================ */

:root {
  --kagit: #F4EFE2;
  --kagit-koyu: #E9E1CB;
  --murekkep: #1C1A16;
  --yesil: #17140F;
  --yesil-koyu: #0C0B08;
  --pirinc: #F0A91D;
  --pirinc-parlak: #FFC53D;
  --pas: #6E6656;
  --cizgi: rgba(28, 26, 22, 0.16);

  --yazi-baslik: "Fraunces", Georgia, serif;
  --yazi-govde: "Source Serif 4", Georgia, serif;
  --yazi-etiket: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--kagit);
  color: var(--murekkep);
  font-family: var(--yazi-govde);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}

.atla-baglanti {
  position: absolute; left: -999px; top: 0;
  background: var(--yesil); color: var(--kagit);
  padding: 10px 16px; z-index: 200;
}
.atla-baglanti:focus { left: 12px; top: 12px; }

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--pirinc);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

.bos-durum {
  font-style: italic;
  color: var(--pas);
  font-size: 0.95rem;
}

/* ---------------- Kitap sırtı navigasyon ---------------- */

.raf {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--yesil-koyu);
  border-bottom: 3px solid var(--murekkep);
}

.raf-ic {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
}

.raf-logo {
  align-self: center;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  padding: 14px 0;
}
.raf-logo-img {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.raf-logo-metin {
  font-family: var(--yazi-baslik);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--kagit);
  line-height: 1.15;
}
.raf-logo-metin em {
  display: block;
  font-style: normal;
  font-family: var(--yazi-etiket);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pirinc);
  margin-top: 3px;
}

.raf-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.raf-toggle span {
  width: 24px; height: 2px; background: var(--kagit); display: block;
}

.kitap-nav {
  display: flex;
  align-items: flex-end;
  gap: 6px;
}

.kitap-sirt {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px 10px 14px;
  min-width: 46px;
  text-decoration: none;
  color: var(--kagit);
  border-radius: 3px 3px 0 0;
  border-top: 3px solid rgba(239,231,211,0.35);
  transition: transform 0.15s ease, padding-bottom 0.15s ease;
  position: relative;
}
.kitap-sirt span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--yazi-etiket);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.kitap-sirt:hover,
.kitap-sirt:focus-visible {
  transform: translateY(-6px);
  padding-bottom: 20px;
}
.kitap-1 { background: #2C2820; }
.kitap-2 { background: #221F19; }
.kitap-3 { background: #362E20; }
.kitap-4 { background: #262019; }
.kitap-5 { background: #1E1B15; }
.kitap-6.vurgu { background: var(--pirinc); color: var(--murekkep); border-top-color: rgba(28,26,22,0.35); }

/* ---------------- Kahraman (hero) ---------------- */

.kahraman {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.kahraman-gorsel {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 65%;
  filter: blur(3px) saturate(0.85) brightness(0.55);
  transform: scale(1.06);
}

.kahraman-karart {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(23,20,15,0.55) 0%, rgba(23,20,15,0.35) 45%, rgba(23,20,15,0.92) 100%);
}

.kahraman-ic {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  padding: 120px 24px 64px;
  width: 100%;
}

@keyframes sirfaYukariBelir {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

.kahraman-etiket,
.kahraman-baslik,
.kahraman-metin,
.kahraman-cta {
  opacity: 0;
  animation: sirfaYukariBelir 0.7s ease forwards;
}
.kahraman-etiket { animation-delay: 0.05s; }
.kahraman-baslik { animation-delay: 0.15s; }
.kahraman-metin { animation-delay: 0.3s; }
.kahraman-cta { animation-delay: 0.45s; }

.kahraman-gorsel {
  animation: sirfaOlceklen 12s ease-in-out infinite alternate;
}
@keyframes sirfaOlceklen {
  from { transform: scale(1.06); }
  to { transform: scale(1.14); }
}

.kahraman-etiket {
  font-family: var(--yazi-etiket);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pirinc);
  margin: 0 0 18px;
}

.kahraman-baslik {
  font-family: var(--yazi-baslik);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.2vw, 3.6rem);
  line-height: 1.08;
  margin: 0 0 22px;
  letter-spacing: -0.01em;
  color: var(--kagit);
}
.kahraman-baslik em {
  font-style: italic;
  color: var(--pirinc);
}

.kahraman-metin {
  font-size: 1.08rem;
  max-width: 52ch;
  margin: 0 0 30px;
  color: #D8D2BE;
}

.kahraman-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.dugme {
  font-family: var(--yazi-etiket);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 22px;
  border-radius: 3px;
  display: inline-block;
  transition: transform 0.15s ease;
}
.dugme:hover { transform: translateY(-2px); }
.dugme-ana { background: var(--pirinc); color: var(--murekkep); }
.dugme-ikincil { background: transparent; color: var(--kagit); border: 2px solid var(--kagit); }

/* ---------------- Genel bölüm iskeleti ---------------- */

.bolum { padding: 88px 24px; }
.bolum-ic { max-width: 1080px; margin: 0 auto; }

.bolum-etiket {
  font-family: var(--yazi-etiket);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pas);
  margin: 0 0 12px;
}
.bolum-etiket-acik { color: var(--pirinc); }

.bolum-baslik {
  font-family: var(--yazi-baslik);
  font-weight: 600;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin: 0 0 20px;
  max-width: 18ch;
}
.bolum-baslik-acik { color: var(--kagit); }

/* ---------------- Hakkında ---------------- */

.hakkinda { background: var(--kagit-koyu); border-top: 1px solid var(--cizgi); border-bottom: 1px solid var(--cizgi); }
.hakkinda-ic {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.hakkinda-metin p { max-width: 56ch; color: #40453A; }

.hakkinda-istatistik { display: grid; gap: 16px; }
.fis-kart {
  background: var(--kagit);
  border: 1px dashed var(--pas);
  border-radius: 4px;
  padding: 18px 22px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.fis-sayi { font-family: var(--yazi-baslik); font-weight: 600; font-size: 1.8rem; color: var(--yesil); }
.fis-etiket { font-family: var(--yazi-etiket); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--pas); }

/* ---------------- Galeri (gerçek mekan fotoğrafları) ---------------- */

.galeri-bolum { background: var(--kagit-koyu); }

.galeri-izgara {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 180px;
  gap: 14px;
}
.galeri-oge {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  grid-column: span 1;
}
.galeri-oge.buyuk { grid-column: span 2; grid-row: span 2; }
.galeri-oge img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.92) contrast(1.02);
  transition: transform 0.4s ease;
}
.galeri-oge:hover img { transform: scale(1.05); }
.galeri-oge figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 12px;
  font-family: var(--yazi-etiket);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--kagit);
  background: linear-gradient(to top, rgba(23,20,15,0.75), transparent);
}

@media (max-width: 720px) {
  .galeri-izgara { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; }
  .galeri-oge.buyuk { grid-column: span 2; grid-row: span 1; }
}

/* ---------------- Katalog / Menü ---------------- */

.katalog-izgara {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.katalog-kart {
  background: var(--kagit-koyu);
  border-radius: 6px;
  padding: 28px;
  border-top: 4px solid var(--yesil);
}
.katalog-kart-ust { margin-bottom: 10px; }
.katalog-kod {
  font-family: var(--yazi-etiket);
  font-size: 0.76rem;
  color: var(--pirinc);
  display: block;
  margin-bottom: 4px;
}
.katalog-kart h3 {
  font-family: var(--yazi-baslik);
  font-weight: 600;
  font-size: 1.3rem;
  margin: 0;
}
.katalog-aciklama { color: #4A4F42; font-size: 0.95rem; margin: 0 0 18px; }

.katalog-liste { list-style: none; margin: 0; padding: 0; }
.katalog-liste li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 0;
  border-bottom: 1px dotted var(--cizgi);
  font-size: 0.96rem;
}
.katalog-liste li:last-child { border-bottom: none; }
.katalog-noktali { flex: 1; }
.katalog-fiyat { font-family: var(--yazi-etiket); font-size: 0.86rem; color: var(--pas); }

/* ---------------- Duyuru panosu (kampanyalar) ---------------- */

.pano-bolum { background: var(--yesil-koyu); color: var(--kagit); }

.pano-izgara {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  margin-top: 40px;
}

.pano-not {
  position: relative;
  background: var(--kagit);
  color: var(--murekkep);
  padding: 26px 22px 22px;
  border-radius: 2px;
  box-shadow: 0 8px 18px rgba(0,0,0,0.25);
}
.not-1 { transform: rotate(-1.5deg); }
.not-2 { transform: rotate(1deg); }
.not-3 { transform: rotate(-0.5deg); }

.pano-pin {
  position: absolute;
  top: -8px; left: 50%;
  transform: translateX(-50%);
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--pirinc);
  box-shadow: 0 2px 3px rgba(0,0,0,0.35);
}
.pano-tarih {
  font-family: var(--yazi-etiket);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--pas);
}
.pano-not h3 {
  font-family: var(--yazi-baslik);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 6px 0 8px;
}
.pano-not p { margin: 0; font-size: 0.92rem; color: #40453A; }

/* ---------------- Öğrenci kartları ---------------- */

.ogrenci-alt { color: #4A4F42; max-width: 50ch; margin: 0 0 36px; }

.kart-izgara {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.ogrenci-karti {
  background: var(--murekkep);
  color: var(--kagit);
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #3A3E30;
}
.ogrenci-karti-ust {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.ogrenci-karti-seri {
  font-family: var(--yazi-etiket);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--pirinc);
}
.ogrenci-karti-delik {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--kagit);
  opacity: 0.15;
}
.ogrenci-karti h3 {
  font-family: var(--yazi-baslik);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 8px;
}
.ogrenci-karti p { margin: 0; font-size: 0.92rem; color: #C9C4AE; }

/* ---------------- Etkinlik takvimi (iade fişi) ---------------- */

.etkinlik-bolum { background: var(--yesil-koyu); color: var(--kagit); }

.fis-liste {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  border-top: 1px dashed rgba(239,231,211,0.35);
}
.fis-satir {
  display: grid;
  grid-template-columns: 90px 1fr 90px;
  align-items: center;
  gap: 16px;
  padding: 18px 4px;
  border-bottom: 1px dashed rgba(239,231,211,0.35);
}
.fis-tarih {
  font-family: var(--yazi-etiket);
  font-size: 0.85rem;
  color: var(--pirinc);
  letter-spacing: 0.04em;
}
.fis-baslik {
  font-family: var(--yazi-baslik);
  font-size: 1.1rem;
}
.fis-saat {
  font-family: var(--yazi-etiket);
  font-size: 0.85rem;
  color: #C9C4AE;
  text-align: right;
}

/* ---------------- Yüzen Instagram butonu ---------------- */

.insta-yuzen {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 150;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #F0A91D, #E1306C 60%, #5851DB);
  color: #fff;
  box-shadow: 0 6px 16px rgba(23,20,15,0.35);
  transition: transform 0.15s ease;
}
.insta-yuzen:hover { transform: scale(1.08); }

/* ---------------- Alt bilgi / footer ---------------- */

.son-sayfa {
  background: var(--murekkep);
  color: var(--kagit);
  padding: 64px 24px 24px;
}
.son-sayfa-ic {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid #3A3E30;
}
.son-logo {
  font-family: var(--yazi-baslik);
  font-weight: 600;
  font-size: 1.3rem;
  margin: 0 0 4px;
}
.son-logo span { display: block; font-family: var(--yazi-etiket); font-size: 0.62rem; letter-spacing: 0.12em; color: var(--pirinc); text-transform: uppercase; margin-top: 4px; }
.son-slogan { color: #C9C4AE; font-style: italic; margin: 10px 0 0; }

.son-baslik {
  font-family: var(--yazi-etiket);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pirinc);
  margin: 0 0 10px;
}
.son-sutun p { margin: 0 0 6px; font-size: 0.92rem; color: #C9C4AE; }
.son-sutun a { text-decoration: none; }
.son-sutun a:hover { color: var(--pirinc); }

.son-fis {
  max-width: 1080px;
  margin: 20px auto 0;
  display: flex;
  justify-content: space-between;
  font-family: var(--yazi-etiket);
  font-size: 0.72rem;
  color: #6B6E5F;
}

/* ---------------- Scroll ile beliren animasyonlar ---------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.gorunur { opacity: 1; transform: none; }

.pano-izgara .reveal:nth-child(2).gorunur,
.katalog-izgara .reveal:nth-child(2).gorunur,
.kart-izgara .reveal:nth-child(2).gorunur { transition-delay: 0.08s; }
.pano-izgara .reveal:nth-child(3).gorunur,
.katalog-izgara .reveal:nth-child(3).gorunur,
.kart-izgara .reveal:nth-child(3).gorunur { transition-delay: 0.16s; }
.pano-izgara .reveal:nth-child(4).gorunur,
.katalog-izgara .reveal:nth-child(4).gorunur,
.kart-izgara .reveal:nth-child(4).gorunur { transition-delay: 0.24s; }

/* ---------------- Kart hover efektleri ---------------- */

.pano-not { transition: transform 0.25s ease, box-shadow 0.25s ease; }
.pano-not:hover {
  transform: rotate(0deg) translateY(-6px) scale(1.02);
  box-shadow: 0 14px 26px rgba(0,0,0,0.32);
}

.katalog-kart { transition: transform 0.25s ease, box-shadow 0.25s ease; }
.katalog-kart:hover { transform: translateY(-5px); box-shadow: 0 12px 24px rgba(23,20,15,0.12); }

.ogrenci-karti { transition: transform 0.25s ease, border-color 0.25s ease; }
.ogrenci-karti:hover { transform: translateY(-5px); border-color: var(--pirinc); }

.fis-satir { transition: background 0.2s ease, padding-left 0.2s ease; }
.fis-satir:hover { background: rgba(240,169,29,0.06); padding-left: 8px; }

.fis-kart { transition: transform 0.25s ease; }
.fis-kart:hover { transform: translateY(-3px); }

@keyframes yuzenNabiz {
  0%, 100% { box-shadow: 0 6px 16px rgba(23,20,15,0.35), 0 0 0 0 rgba(240,169,29,0.4); }
  50% { box-shadow: 0 6px 16px rgba(23,20,15,0.35), 0 0 0 10px rgba(240,169,29,0); }
}
.insta-yuzen { animation: yuzenNabiz 2.6s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  .kahraman-etiket, .kahraman-baslik, .kahraman-metin, .kahraman-cta { animation: none; opacity: 1; }
  .kahraman-gorsel { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .insta-yuzen { animation: none; }
}

/* ---------------- Duyarlı tasarım ---------------- */

@media (max-width: 860px) {
  .kahraman { min-height: 62vh; }
  .hakkinda-ic { grid-template-columns: 1fr; }
  .son-sayfa-ic { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .raf-toggle { display: flex; }
  .kitap-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--yesil-koyu);
    flex-direction: column;
    align-items: stretch;
    display: none;
    border-bottom: 3px solid var(--murekkep);
  }
  .kitap-nav.acik { display: flex; }
  .kitap-sirt {
    writing-mode: horizontal-tb;
    align-items: center;
    justify-content: flex-start;
    padding: 14px 20px;
    border-top: none;
    border-bottom: 1px solid rgba(239,231,211,0.15);
    border-radius: 0;
  }
  .kitap-sirt span { writing-mode: horizontal-tb; transform: none; font-size: 0.85rem; }
  .kitap-sirt:hover, .kitap-sirt:focus-visible { transform: none; padding-bottom: 14px; }
}

@media (max-width: 560px) {
  .son-sayfa-ic { grid-template-columns: 1fr; }
  .fis-satir { grid-template-columns: 70px 1fr; }
  .fis-saat { grid-column: 2; text-align: left; margin-top: 2px; }
}