/* ==========================================================================
   Özlem Öğretmen — görsel dil
   Renk:  mürekkep moru (marka) · kağıt grisi (zemin) · sınıf renkleri (yön bulma)
   Tip:   Bricolage Grotesque (başlık) · Manrope (metin) · JetBrains Mono (etiket)
   Fikir: masaya serilmiş kağıtlar — dosya sekmeleri, kareli defter, kağıt gölgesi
   ========================================================================== */

:root {
  --murekkep: #2B2A57;
  --murekkep-koyu: #17163A;
  --murekkep-orta: #4B4A85;
  --murekkep-solgun: #8A89B4;

  --kagit: #F4F3F8;
  --kart: #FFFFFF;
  --metin: #221F3D;
  --metin-ikincil: #605E80;
  --cizgi: #E2E0EC;
  --cizgi-koyu: #CFCDDE;

  --sari: #FFC53D;
  --sari-koyu: #C9930C;
  --yesil: #1F9D63;
  --yesil-koyu: #167247;

  --s1: #E2564D;
  --s2: #DE8A15;
  --s3: #2E9E8F;
  --s4: #C2417F;

  --golge-kagit: 0 1px 1px rgba(34, 31, 61, .05), 0 4px 12px rgba(34, 31, 61, .07);
  --golge-kalkik: 0 6px 14px rgba(34, 31, 61, .10), 0 18px 40px rgba(34, 31, 61, .13);
  --golge-panel: 0 2px 6px rgba(34, 31, 61, .06);

  --r-kucuk: 8px;
  --r-orta: 12px;
  --r-buyuk: 18px;

  --genislik: 1180px;
  --bosluk-bolum: clamp(54px, 7vw, 86px);

  --baslik-yazi: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --govde-yazi: "Manrope", "Segoe UI", system-ui, -apple-system, sans-serif;
  --etiket-yazi: "JetBrains Mono", ui-monospace, "Cascadia Mono", monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--kagit);
  color: var(--metin);
  font-family: var(--govde-yazi);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

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

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--baslik-yazi);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.022em;
  text-wrap: balance;
  color: var(--murekkep);
}

:focus-visible {
  outline: 3px solid var(--sari);
  outline-offset: 2px;
  border-radius: 4px;
}

.kapsayici {
  max-width: var(--genislik);
  margin: 0 auto;
  padding: 0 24px;
}

.gizli-erisim {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--murekkep);
  color: #fff;
  padding: 12px 18px;
  border-radius: 0 0 var(--r-orta) 0;
  font-weight: 700;
  z-index: 100;
}

.gizli-erisim:focus { left: 0; }

/* Küçük mono etiket — bölüm başlıklarının üstünde */
.etiket {
  font-family: var(--etiket-yazi);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--murekkep-solgun);
  display: block;
  margin-bottom: 10px;
}

/* ==========================================================================
   Üst bar
   ========================================================================== */

.ustbar {
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--cizgi);
  position: sticky;
  top: 0;
  z-index: 50;
}

.ustbar-ic {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 76px;
}

.marka {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  font-family: var(--baslik-yazi);
  font-weight: 800;
  font-size: 20.5px;
  letter-spacing: -.03em;
  color: var(--murekkep);
}

.marka svg { width: 40px; height: 40px; display: block; flex-shrink: 0; }

.marka small {
  display: block;
  font-family: var(--etiket-yazi);
  font-size: 9.5px;
  font-weight: 500;
  color: var(--murekkep-solgun);
  letter-spacing: .13em;
  text-transform: uppercase;
  margin-top: 1px;
}

.menu {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.menu a {
  padding: 9px 13px;
  border-radius: var(--r-kucuk);
  font-weight: 700;
  font-size: 15px;
  color: var(--metin-ikincil);
  transition: background .15s, color .15s;
}

.menu a:hover { background: #EDEBF4; color: var(--murekkep); }

.menu a[aria-current] {
  color: var(--murekkep);
  background: #EAE8F3;
}

.menu-dugme {
  display: none;
  margin-left: auto;
  background: var(--kart);
  border: 1px solid var(--cizgi);
  border-radius: var(--r-kucuk);
  padding: 10px 13px;
  cursor: pointer;
  color: var(--murekkep);
  font-size: 18px;
  line-height: 1;
}

/* ==========================================================================
   Giriş bölümü — asimetrik: solda söz, sağda kağıt destesi
   ========================================================================== */

.giris {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--cizgi);
  background: var(--kart);
}

.giris::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43, 42, 87, .042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 42, 87, .042) 1px, transparent 1px);
  background-size: 27px 27px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 78%);
  pointer-events: none;
}

.giris-ic {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 48px;
  align-items: center;
  padding: 74px 0 78px;
}

.giris h1 {
  font-size: clamp(34px, 5vw, 54px);
  margin-bottom: 18px;
  letter-spacing: -.035em;
}

/* Sarı kalemle çizilmiş gibi: yazının alt üçte birini boyayan degrade */
.giris h1 .vurgulu {
  background-image: linear-gradient(
    transparent 58%,
    rgba(255, 197, 61, .62) 58%,
    rgba(255, 197, 61, .62) 94%,
    transparent 94%
  );
  padding: 0 4px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.giris-metin {
  font-size: 18.5px;
  color: var(--metin-ikincil);
  max-width: 46ch;
  margin: 0 0 30px;
}

.rakamlar {
  display: flex;
  gap: 28px;
  margin-top: 26px;
  flex-wrap: wrap;
}

.rakam {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.rakam b {
  font-family: var(--baslik-yazi);
  font-size: 25px;
  font-weight: 800;
  color: var(--murekkep);
  font-variant-numeric: tabular-nums;
}

.rakam span {
  font-family: var(--etiket-yazi);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--murekkep-solgun);
  margin-top: 3px;
  font-weight: 500;
}

/* Kağıt destesi */

.deste {
  position: relative;
  height: 400px;
  display: grid;
  place-items: center;
}

.deste-kagit {
  position: absolute;
  width: 214px;
  aspect-ratio: 210 / 297;
  background: #fff;
  border: 1px solid var(--cizgi);
  border-radius: 6px;
  box-shadow: var(--golge-kalkik);
  padding: 20px 18px;
  transform-origin: center bottom;
}

.deste-kagit:nth-child(1) { transform: rotate(-13deg) translate(-104px, 12px); }
.deste-kagit:nth-child(2) { transform: rotate(5deg) translate(96px, -6px); }
.deste-kagit:nth-child(3) { transform: rotate(-2deg) translateY(-4px); z-index: 2; }

.deste-serit {
  height: 5px;
  border-radius: 3px;
  background: var(--renk, var(--murekkep));
  width: 46px;
  margin-bottom: 15px;
}

.deste-satir {
  height: 6px;
  border-radius: 3px;
  background: #E7E5F0;
  margin-bottom: 9px;
}

.deste-kutu {
  height: 54px;
  border: 1.5px dashed var(--cizgi-koyu);
  border-radius: 5px;
  margin: 14px 0;
}

.deste-rozet {
  position: absolute;
  right: -12px;
  bottom: 18px;
  background: var(--murekkep);
  color: #fff;
  font-family: var(--etiket-yazi);
  font-size: 11px;
  font-weight: 700;
  padding: 7px 13px;
  border-radius: 999px;
  letter-spacing: .04em;
  box-shadow: var(--golge-panel);
}

@media (prefers-reduced-motion: no-preference) {
  .deste-kagit { animation: destetAcil .7s cubic-bezier(.22, 1, .36, 1) backwards; }
  .deste-kagit:nth-child(1) { animation-delay: .06s; }
  .deste-kagit:nth-child(2) { animation-delay: .14s; }
  .deste-kagit:nth-child(3) { animation-delay: .02s; }
}

@keyframes destetAcil {
  from { transform: rotate(0) translate(0, 26px); opacity: 0; }
}

/* ==========================================================================
   Arama
   ========================================================================== */

.arama {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--kart);
  border: 2px solid var(--cizgi-koyu);
  border-radius: 999px;
  padding: 6px 6px 6px 20px;
  box-shadow: var(--golge-panel);
  max-width: 540px;
  transition: border-color .16s, box-shadow .16s;
}

.arama:focus-within {
  border-color: var(--murekkep-orta);
  box-shadow: 0 0 0 4px rgba(75, 74, 133, .14);
}

.arama input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font: inherit;
  font-size: 16.5px;
  color: var(--metin);
}

.arama input::placeholder { color: #9C9AB8; }

.arama button {
  flex-shrink: 0;
  background: var(--murekkep);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 13px 27px;
  font-family: var(--govde-yazi);
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
  transition: background .15s;
}

.arama button:hover { background: var(--murekkep-koyu); }

/* Arama sonuç katmanı */

.arama-sarmal { position: relative; max-width: 540px; }

.sonuclar {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: var(--kart);
  border: 1px solid var(--cizgi);
  border-radius: var(--r-orta);
  box-shadow: var(--golge-kalkik);
  padding: 7px;
  max-height: 380px;
  overflow-y: auto;
  z-index: 30;
  display: none;
}

.sonuclar.acik { display: block; }

.sonuc {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--r-kucuk);
  transition: background .12s;
}

.sonuc:hover, .sonuc:focus-visible { background: #F1EFF7; }

.sonuc-no {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-family: var(--baslik-yazi);
  font-weight: 800;
  font-size: 14px;
  background: color-mix(in srgb, var(--renk) 14%, white);
  color: var(--renk);
}

.sonuc-ad {
  font-weight: 700;
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sonuc-alt {
  font-size: 12.5px;
  color: var(--metin-ikincil);
  font-weight: 600;
}

.sonuc-bos {
  padding: 18px 14px;
  color: var(--metin-ikincil);
  font-size: 15px;
  text-align: center;
}

/* ==========================================================================
   Bölümler
   ========================================================================== */

.bolum { padding: var(--bosluk-bolum) 0; }
.bolum.sik { padding-top: 0; }
.bolum.beyaz { background: var(--kart); border-block: 1px solid var(--cizgi); }

.bolum-basi {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.bolum-basi h2 { font-size: clamp(25px, 3.2vw, 33px); }

.bolum-basi p {
  margin: 8px 0 0;
  color: var(--metin-ikincil);
  font-size: 16.5px;
}

.bag-tumu {
  font-weight: 800;
  font-size: 15px;
  color: var(--murekkep-orta);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: border-color .15s;
}

.bag-tumu:hover { border-color: var(--murekkep-orta); }

/* ==========================================================================
   Sınıf kartları — dosya sekmesi metaforu
   ========================================================================== */

.siniflar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 18px;
}

.sinif-kart {
  position: relative;
  display: block;
  background: var(--kart);
  border: 1px solid var(--cizgi);
  border-radius: 4px var(--r-orta) var(--r-orta) var(--r-orta);
  padding: 24px 22px 22px;
  box-shadow: var(--golge-kagit);
  transition: transform .18s cubic-bezier(.22, 1, .36, 1), box-shadow .18s;
}

.sinif-sekme {
  position: absolute;
  top: -17px;
  left: -1px;
  height: 18px;
  min-width: 84px;
  padding: 0 14px;
  background: var(--renk);
  color: #fff;
  border-radius: 6px 6px 0 0;
  font-family: var(--etiket-yazi);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .1em;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sinif-kart:hover {
  transform: translateY(-6px);
  box-shadow: var(--golge-kalkik);
}

.sinif-no {
  font-family: var(--baslik-yazi);
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  color: var(--renk);
  letter-spacing: -.05em;
  margin-bottom: 12px;
}

.sinif-kart h3 { font-size: 19.5px; margin-bottom: 4px; }

.sinif-kart p {
  margin: 0;
  color: var(--metin-ikincil);
  font-size: 14.5px;
  font-weight: 600;
}

/* ==========================================================================
   Belge kartları
   ========================================================================== */

.belgeler {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(222px, 1fr));
  gap: 24px;
}

.belge-kart {
  display: flex;
  flex-direction: column;
  background: var(--kart);
  border: 1px solid var(--cizgi);
  border-radius: var(--r-orta);
  overflow: hidden;
  box-shadow: var(--golge-kagit);
  transition: transform .18s cubic-bezier(.22, 1, .36, 1), box-shadow .18s;
}

.belge-kart:hover {
  transform: translateY(-6px) rotate(-.45deg);
  box-shadow: var(--golge-kalkik);
}

.kapak {
  position: relative;
  aspect-ratio: 210 / 297;
  background: #fff;
  border-bottom: 1px solid var(--cizgi);
  overflow: hidden;
}

.kapak img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* Kapak görseli üretilemediğinde: yazıyla kapak */
.kapak-yazi {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  padding: 24px 20px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--renk) 9%, white), #fff 62%);
}

.kapak-yazi b {
  font-family: var(--baslik-yazi);
  font-size: 17px;
  color: var(--murekkep);
  line-height: 1.25;
}

.kapak-yazi span {
  font-family: var(--etiket-yazi);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--renk);
  font-weight: 700;
}

.kapak-sayfa {
  position: absolute;
  right: 9px;
  bottom: 9px;
  background: rgba(23, 22, 58, .84);
  color: #fff;
  font-family: var(--etiket-yazi);
  font-size: 10.5px;
  font-weight: 700;
  padding: 4px 9px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.belge-govde {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 15px 16px 17px;
}

.belge-govde h3 {
  font-family: var(--govde-yazi);
  font-size: 15.5px;
  font-weight: 800;
  line-height: 1.38;
  color: var(--metin);
  letter-spacing: -.005em;
  margin-bottom: 10px;
}

.belge-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-family: var(--etiket-yazi);
  font-size: 11px;
  font-weight: 500;
  color: var(--metin-ikincil);
}

.rozet {
  font-family: var(--etiket-yazi);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .06em;
  padding: 4px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--renk) 13%, white);
  color: color-mix(in srgb, var(--renk) 82%, black);
}

/* ==========================================================================
   Nasıl çalışır
   ========================================================================== */

.adimlar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: adim;
}

.adim {
  position: relative;
  padding: 26px 26px 26px 0;
}

.adim + .adim { border-left: 1px solid var(--cizgi); padding-left: 26px; }

.adim-no {
  font-family: var(--etiket-yazi);
  font-size: 12px;
  font-weight: 700;
  color: var(--sari-koyu);
  letter-spacing: .14em;
  display: block;
  margin-bottom: 12px;
}

.adim h3 { font-size: 20px; margin-bottom: 8px; }

.adim p { margin: 0; color: var(--metin-ikincil); font-size: 16px; }

/* ==========================================================================
   Sayfa başlığı (sınıf / belge / hakkında)
   ========================================================================== */

.sayfa-basi {
  background: var(--kart);
  border-bottom: 1px solid var(--cizgi);
  padding: 34px 0 38px;
}

.iz {
  font-family: var(--etiket-yazi);
  font-size: 12px;
  font-weight: 500;
  color: var(--murekkep-solgun);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.iz a:hover { color: var(--murekkep); text-decoration: underline; }
.iz i { font-style: normal; color: var(--cizgi-koyu); }

.sayfa-basi h1 { font-size: clamp(28px, 4vw, 40px); }

.sayfa-ozet {
  margin: 10px 0 0;
  color: var(--metin-ikincil);
  font-size: 16.5px;
}

.sinif-baslik { display: flex; align-items: center; gap: 16px; }

.sinif-baslik .sinif-no {
  margin: 0;
  width: 62px;
  height: 62px;
  border-radius: var(--r-orta);
  background: color-mix(in srgb, var(--renk) 13%, white);
  display: grid;
  place-items: center;
  font-size: 34px;
}

/* ==========================================================================
   Araç çubuğu (sınıf sayfası)
   ========================================================================== */

.arac-cubugu {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.arac-cubugu .arama-sarmal { flex: 1; min-width: 240px; max-width: none; }
.arac-cubugu .arama { max-width: none; padding: 4px 5px 4px 18px; }
.arac-cubugu .arama button { padding: 11px 22px; font-size: 15px; }

.secim {
  border: 2px solid var(--cizgi-koyu);
  background: var(--kart);
  border-radius: 999px;
  padding: 12px 20px;
  font: inherit;
  font-weight: 700;
  font-size: 15px;
  color: var(--metin);
  cursor: pointer;
}

.sonuc-sayisi {
  font-family: var(--etiket-yazi);
  font-size: 12.5px;
  color: var(--metin-ikincil);
  margin-bottom: 18px;
}

.bos-durum {
  text-align: center;
  padding: 60px 20px;
  color: var(--metin-ikincil);
}

.bos-durum h3 { font-size: 21px; margin-bottom: 8px; }
.bos-durum p { margin: 0; font-size: 16px; }

/* ==========================================================================
   Belge sayfası
   ========================================================================== */

/* İndirme kutusu ayrı bir ızgara alanıdır: geniş ekranda sağ üstte durur,
   dar ekranda önizlemenin üstüne çıkar — okumadan önce indirmek isteyen
   ziyaretçi sayfalarca aşağı inmek zorunda kalmasın. */
.belge-duzen {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 328px;
  grid-template-areas:
    "onizleme indir"
    "onizleme yan";
  grid-template-rows: auto 1fr;
  gap: 16px 32px;
  align-items: start;
  padding: 36px 0 10px;
}

.indir-kutu { grid-area: indir; }
.goruntuleyici { grid-area: onizleme; }
.yan { grid-area: yan; }

.goruntuleyici {
  background: var(--murekkep-koyu);
  border-radius: var(--r-buyuk);
  overflow: hidden;
  box-shadow: var(--golge-kalkik);
}

.g-ust {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  color: #fff;
}

.g-baslik {
  font-family: var(--etiket-yazi);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #A9A7D0;
  font-weight: 500;
}

.g-bosluk { flex: 1; }

.g-sayac {
  font-family: var(--etiket-yazi);
  font-size: 12.5px;
  font-weight: 700;
  background: rgba(0, 0, 0, .3);
  padding: 5px 12px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}

.g-dugme {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: var(--r-kucuk);
  background: rgba(255, 255, 255, .1);
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background .15s;
}

.g-dugme:hover { background: rgba(255, 255, 255, .22); }
.g-dugme svg { width: 17px; height: 17px; }

.g-sayfalar {
  padding: 22px;
  max-height: 76vh;
  min-height: 420px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  scroll-behavior: smooth;
}

.g-sayfa {
  position: relative;
  background: #fff;
  border-radius: 3px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, .3), 0 14px 34px rgba(0, 0, 0, .25);
  max-width: 100%;
  flex-shrink: 0;
}

.g-sayfa canvas { display: block; border-radius: 3px; max-width: 100%; height: auto; }

.g-yukleniyor {
  color: #A9A7D0;
  font-family: var(--etiket-yazi);
  font-size: 13px;
  padding: 80px 20px;
  text-align: center;
}

.g-hata {
  color: #fff;
  padding: 60px 26px;
  text-align: center;
  max-width: 430px;
  margin: 0 auto;
}

.g-hata p { color: #B9B7DC; font-size: 15px; margin: 10px 0 20px; }

/* Word, sunu ve tablo dosyaları: önizleme yerine açıklama */
.onizleme-yok {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 6px;
  min-height: 380px;
  padding: 54px 30px;
  color: #fff;
}

.onizleme-yok .dosya-ikonu {
  width: 62px;
  height: 62px;
  color: var(--sari);
  margin-bottom: 14px;
  opacity: .95;
}

.onizleme-yok h2 {
  color: #fff;
  font-size: 22px;
  margin-bottom: 6px;
}

.onizleme-yok p {
  color: #B9B7DC;
  font-size: 15.5px;
  line-height: 1.65;
  max-width: 46ch;
  margin: 0;
}

/* Yan panel */

.yan {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: var(--kart);
  border: 1px solid var(--cizgi);
  border-radius: var(--r-buyuk);
  padding: 22px;
  box-shadow: var(--golge-kagit);
}

.panel h3 {
  font-size: 16px;
  margin-bottom: 14px;
  letter-spacing: -.01em;
}

.indir {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  width: 100%;
  background: var(--yesil);
  color: #fff;
  border: 0;
  border-radius: var(--r-orta);
  padding: 17px 20px;
  font-family: var(--govde-yazi);
  font-weight: 800;
  font-size: 17.5px;
  cursor: pointer;
  box-shadow: 0 3px 0 #167247;
  transition: background .15s, transform .1s, box-shadow .1s;
}

.indir:hover { background: #1B8B58; }
.indir:active { transform: translateY(3px); box-shadow: 0 0 0 #167247; }
.indir svg { width: 20px; height: 20px; }

.indir-not {
  margin: 12px 0 0;
  text-align: center;
  font-family: var(--etiket-yazi);
  font-size: 11.5px;
  color: var(--metin-ikincil);
}

.aciklama {
  margin: 0;
  font-size: 15.5px;
  color: var(--metin-ikincil);
  line-height: 1.6;
}

.bilgiler { list-style: none; margin: 0; padding: 0; }

.bilgiler li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--cizgi);
  font-size: 15px;
}

.bilgiler li:last-child { border-bottom: 0; }
.bilgiler span { color: var(--metin-ikincil); font-weight: 600; }

.bilgiler b {
  font-weight: 800;
  color: var(--metin);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.paylas { display: flex; gap: 9px; }

.paylas button, .paylas a {
  flex: 1;
  border: 1.5px solid var(--cizgi);
  background: var(--kart);
  border-radius: var(--r-kucuk);
  padding: 11px 6px;
  font-family: var(--govde-yazi);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--metin-ikincil);
  cursor: pointer;
  text-align: center;
  transition: border-color .15s, color .15s;
}

.paylas button:hover, .paylas a:hover {
  border-color: var(--murekkep-orta);
  color: var(--murekkep);
}

/* ==========================================================================
   Hakkında sayfası
   ========================================================================== */

.yazi {
  max-width: 68ch;
  padding: 46px 0 20px;
}

.yazi h2 {
  font-size: 25px;
  margin: 38px 0 12px;
}

.yazi h2:first-child { margin-top: 0; }

.yazi p { margin: 0 0 16px; color: #3D3A5E; }

.yazi ul { margin: 0 0 18px; padding-left: 22px; color: #3D3A5E; }
.yazi li { margin-bottom: 8px; }

/* ==========================================================================
   Alt bilgi
   ========================================================================== */

.altbilgi {
  background: var(--murekkep);
  color: #BDBBDC;
  padding: 52px 0 26px;
  margin-top: var(--bosluk-bolum);
}

.altbilgi .marka { color: #fff; }
.altbilgi .marka small { color: #9391C4; }

.altbilgi-ic {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, .13);
}

.altbilgi-ic > div:first-child { max-width: 340px; }
.altbilgi-ic p { font-size: 15px; margin: 15px 0 0; }

.altbilgi-baglar { display: flex; gap: 56px; flex-wrap: wrap; }

.altbilgi-baglar h4 {
  color: #fff;
  font-family: var(--etiket-yazi);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.altbilgi-baglar ul { list-style: none; margin: 0; padding: 0; }
.altbilgi-baglar li { margin-bottom: 9px; font-size: 15px; }
.altbilgi-baglar a:hover { color: #fff; text-decoration: underline; }

.telif {
  margin: 20px 0 0;
  text-align: center;
  font-family: var(--etiket-yazi);
  font-size: 11.5px;
  color: #8F8DBE;
}

/* ==========================================================================
   Duyarlı düzen
   ========================================================================== */

@media (max-width: 1040px) {
  .giris-ic { grid-template-columns: 1fr; gap: 20px; padding: 56px 0 60px; }
  .deste { height: 320px; order: -1; }
  .deste-kagit { width: 172px; }
  .deste-kagit:nth-child(1) { transform: rotate(-12deg) translate(-86px, 10px); }
  .deste-kagit:nth-child(2) { transform: rotate(5deg) translate(80px, -6px); }
  .siniflar { grid-template-columns: repeat(2, 1fr); gap: 26px 20px; }
}

/* Yan sütun 328px + görüntüleyici için makul genişlik kalmıyorsa tek sütuna geç */
@media (max-width: 900px) {
  .belge-duzen {
    grid-template-columns: 1fr;
    grid-template-areas:
      "indir"
      "onizleme"
      "yan";
    grid-template-rows: auto auto auto;
    gap: 18px;
  }
}

@media (max-width: 860px) {
  .adimlar { grid-template-columns: 1fr; gap: 0; }
  .adim { padding: 22px 0; }
  .adim + .adim { border-left: 0; border-top: 1px solid var(--cizgi); padding-left: 0; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .menu-dugme { display: block; }

  .menu { display: none; }

  /* Düğmeyle açılan menü: üst barın altına inen tam genişlikte liste */
  .menu.acik {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    background: var(--kart);
    border-bottom: 1px solid var(--cizgi);
    box-shadow: var(--golge-kalkik);
    padding: 8px;
  }

  .menu.acik a {
    padding: 13px 14px;
    font-size: 16.5px;
    border-radius: var(--r-kucuk);
  }

  .kapsayici { padding: 0 16px; }
  .giris-ic { padding: 40px 0 48px; }
  .giris-metin { font-size: 17px; margin-bottom: 24px; }
  .deste { height: 250px; }
  .deste-kagit { width: 140px; padding: 14px 12px; }
  .deste-kagit:nth-child(1) { transform: rotate(-12deg) translate(-68px, 8px); }
  .deste-kagit:nth-child(2) { transform: rotate(5deg) translate(64px, -6px); }
  .deste-rozet { display: none; }
  .arama { flex-wrap: wrap; border-radius: var(--r-buyuk); padding: 11px; gap: 9px; }
  .arama input { width: 100%; padding: 5px 6px; font-size: 16px; }
  .arama button { width: 100%; border-radius: var(--r-orta); }
  .arama-sarmal { max-width: none; }
  .belgeler { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .belge-govde { padding: 12px 12px 14px; }
  .belge-govde h3 { font-size: 14px; }
  .belge-meta { font-size: 10px; gap: 6px; }
  .g-sayfalar { padding: 12px; max-height: none; min-height: 280px; }
  .secim { width: 100%; }
  .sinif-baslik .sinif-no { width: 52px; height: 52px; font-size: 28px; }
  .altbilgi-baglar { gap: 36px; }
}

@media (max-width: 430px) {
  .siniflar { grid-template-columns: 1fr; }
  .rakamlar { gap: 20px; }
  .marka { font-size: 18px; }
  .marka svg { width: 34px; height: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .ustbar, .altbilgi, .yan, .arac-cubugu, .g-ust { display: none; }
}