/* Yerleşim: bir okul defteri. Kısa yazı, çok hareket: kitap sayfası etkileşimli içeriğe dönüşür, deneyler oynar,
   rozetler deftere çıkartma gibi yapışır, ağaç yaprak verir. Kareli kâğıt, sağ üstte tarih, "Konu:", TANIM ve DİKKAT
   kutuları, öğrencinin mavi, öğretmenin kırmızı kalemi. Bilinçli olarak tek tema: kâğıt. Yazı tipleri yazitipi/yazitipi.css'ten. */
:root {
  color-scheme: light;
  --masa: #E3D6BF;
  --masa-damar: rgba(122, 88, 46, .05);
  --delik: #CBBC9F;
  --tel: #7A808C;
  --kagit: #FCFDFE;
  --kare: #DCE5EF;
  --kenar: #EDB2B2;
  --baski: #1B2233;
  --soluk: #4A5368;
  --mavi: #2343A6;
  --mavi-koyu: #1B3584;
  --kirmizi: #CF2E2E;
  --tanim: #FFF6D9;
  --dikkat: #FDE8E6;
  --bant: rgba(246, 230, 178, .78);
  --kursun: #707784;
  --yesil: #1E9E63;
  --altin: #F2A51A;
  --kitap: #FFFDF6;
  --gece: #141A3F;
  --zemin: #F3F5FA;
  --baslik: "Zilla Slab", Rockwell, "Roboto Slab", Georgia, serif;
  --metin: "Andika", "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  --el: "Kalam", "Comic Sans MS", "Segoe Print", cursive;
  --k: 22px;
}
* { box-sizing: border-box }
[hidden] { display: none !important }
html { background: var(--kagit); scroll-behavior: smooth }
body {
  margin: 0; color: var(--baski); font-family: var(--metin); font-size: 18px; line-height: 1.55;
  background-color: var(--kagit);
  background-image: linear-gradient(var(--kare) 1px, transparent 1px), linear-gradient(90deg, var(--kare) 1px, transparent 1px);
  background-size: var(--k) var(--k); background-position: -1px -1px;
  padding-inline: 20px; -webkit-font-smoothing: antialiased;
}
:focus-visible { outline: 3px solid var(--mavi); outline-offset: 3px }
a { color: var(--mavi) }
button { font: inherit; color: inherit }
.defter { max-width: 1120px; margin-inline: auto; position: relative; padding-bottom: 60px }
@media (min-width: 900px) { .defter { padding-left: 92px } .defter::before { content: ""; position: absolute; top: -40px; bottom: 0; left: 66px; width: 2px; background: var(--kenar) } }
.el { font-family: var(--el); line-height: 1.25 }
.mavi { color: var(--mavi) }
.kirmizi { color: var(--kirmizi) }

/* Defter etiketi, tarih, üstteki bağlantılar */
.ust { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 16px 20px; padding-top: 30px }
.etiket { display: block; color: inherit; text-decoration: none; background: var(--kagit); border: 2px solid var(--mavi); outline: 1px solid var(--mavi); outline-offset: -7px; border-radius: 12px; padding: 14px 20px 12px; transform: rotate(-1.2deg); width: min(100%, 330px) }
.etiket img { height: 22px; display: block; margin-bottom: 6px }
.etiket dl { margin: 0; display: grid; gap: 1px }
.etiket div { display: grid; grid-template-columns: 5.6em minmax(0, 1fr); align-items: baseline; border-bottom: 1.5px dotted rgba(35, 67, 166, .45) }
.etiket dt { font-family: var(--baslik); font-weight: 600; font-size: 14px; color: var(--soluk) }
.etiket dd { margin: 0; font-family: var(--el); font-size: 21px; color: var(--mavi) }
.sag-ust { display: grid; justify-items: end; gap: 12px }
.tarih { font-family: var(--el); font-size: 24px; color: var(--mavi); font-variant-numeric: tabular-nums }
.ust-eylem { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 10px 18px }
.izle { display: inline-flex; align-items: center; gap: 8px; border: 0; background: none; padding: 4px 0; cursor: pointer; font-family: var(--el); font-size: 21px; color: var(--mavi); text-decoration: underline; text-underline-offset: 5px }
.izle::before { content: ""; width: 0; height: 0; border-left: 11px solid var(--kirmizi); border-top: 7px solid transparent; border-bottom: 7px solid transparent }
.dugme { display: inline-block; font-family: var(--baslik); font-weight: 700; font-size: 18px; color: #fff; background: var(--mavi); border: 0; padding: 12px 20px; border-radius: 5px 9px 6px 10px; cursor: pointer; text-decoration: none; line-height: 1.2 }
.dugme:hover { background: var(--mavi-koyu) }
.dugme:disabled { opacity: .6; cursor: default }
.konu { text-align: center; font-size: clamp(28px, 3.6vw, 38px); margin: 44px 0 0 }
.konu span { display: inline-block; border-bottom: 2.5px solid var(--mavi); box-shadow: 0 5px 0 -2px var(--kagit), 0 6px 0 -1px var(--mavi); padding-inline: 6px }

/* Ders kitabı kutuları */
.kutu { position: relative; border: 2.5px solid var(--baski); border-radius: 4px; box-shadow: 6px 6px 0 rgba(27, 34, 51, .12) }
.kutu-etiket { position: absolute; top: -17px; left: 22px; background: var(--baski); font-family: var(--baslik); font-weight: 700; font-size: 15px; letter-spacing: .12em; padding: 5px 12px 4px }
.tanim { margin: 40px 0 0; background: var(--tanim); padding: 32px 26px 24px }
.tanim .kutu-etiket { color: var(--tanim) }
.tanim h1 { font-family: var(--baslik); font-weight: 600; font-size: clamp(27px, 3.2vw, 40px); line-height: 1.18; margin: 0; text-wrap: balance }
.uc-is { list-style: none; counter-reset: is; margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px }
.uc-is li { counter-increment: is; display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 12px; font-size: 17.5px }
.uc-is li::before { content: counter(is); width: 34px; height: 34px; border: 2.5px solid var(--baski); border-radius: 50%; display: grid; place-items: center; font-family: var(--baslik); font-weight: 700; font-size: 17px; background: var(--kagit) }
.uc-is b { font-family: var(--baslik); font-size: 21px; display: block; line-height: 1.2 }
.uc-is a { color: inherit; text-decoration: none }
.tanim .dip { margin: 20px 0 0; padding-top: 14px; border-top: 1.5px dashed rgba(27, 34, 51, .3); font-size: 16px; color: var(--soluk) }

/* Bölümler */
.bolum { padding-top: 120px }
.bolum-bas { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: center }
.no { width: 54px; height: 54px; border: 3px solid var(--baski); border-radius: 50%; display: grid; place-items: center; font-family: var(--baslik); font-weight: 700; font-size: 26px; background: var(--kagit) }
.no.bos { border-style: dashed; font-size: 20px }
.bolum h2 { font-family: var(--baslik); font-weight: 700; font-size: clamp(30px, 4vw, 50px); line-height: 1.05; letter-spacing: -0.01em; margin: 0; text-wrap: balance }
.alt { margin: 14px 0 0; font-family: var(--el); color: var(--mavi); font-size: clamp(22px, 2.4vw, 27px); line-height: 1.3; max-width: 34em }
.ara { font-family: var(--baslik); font-weight: 700; font-size: 26px; margin: 72px 0 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 12px }
.ara small { font-family: var(--el); font-weight: 400; font-size: 21px; color: var(--mavi) }
.tekrar { font-family: var(--el); font-size: 19px; color: var(--mavi); background: none; border: 0; padding: 4px 0; cursor: pointer; text-decoration: underline; text-underline-offset: 4px }

/* Bantla yapıştırılmış görüntüler */
.kolaj { display: grid; grid-template-columns: minmax(0, 1fr); gap: 50px 36px; margin-top: 36px; align-items: start }
.kolaj > div { min-width: 0 }
.yapisik { position: relative; margin: 0; background: #fff; padding: 8px 8px 10px; box-shadow: 0 1px 2px rgba(27, 34, 51, .12), 0 12px 28px rgba(27, 34, 51, .14); max-width: 100% }
.yapisik img, .yapisik video { display: block; width: 100%; height: auto; background: var(--zemin) }
.yapisik figcaption { font-family: var(--el); color: var(--mavi); font-size: 19px; margin-top: 6px; line-height: 1.2 }
.yapisik::before, .yapisik::after { content: ""; position: absolute; z-index: 1; width: 84px; height: 26px; background: var(--bant); box-shadow: 0 1px 2px rgba(27, 34, 51, .08); clip-path: polygon(0 8%, 6% 0, 12% 10%, 20% 0, 28% 8%, 36% 0, 44% 9%, 52% 0, 60% 8%, 68% 0, 76% 10%, 84% 0, 92% 8%, 100% 0, 100% 92%, 94% 100%, 86% 90%, 78% 100%, 70% 92%, 62% 100%, 54% 90%, 46% 100%, 38% 92%, 30% 100%, 22% 90%, 14% 100%, 6% 92%, 0 100%) }
.yapisik::before { top: -12px; left: -16px; transform: rotate(-32deg) }
.yapisik::after { top: -11px; right: -16px; transform: rotate(28deg) }
.kolaj > div:nth-child(odd) .yapisik { transform: rotate(-1.1deg) }
.kolaj > div:nth-child(even) .yapisik { transform: rotate(1deg) }
.yapisik.telefon { width: min(70%, 260px) }
.kalem { display: block; margin-top: 12px; font-family: var(--el); color: var(--kirmizi); font-size: 21px; line-height: 1.25; transform: rotate(-1.2deg); transform-origin: left }
.metin h3 { font-family: var(--baslik); font-weight: 700; font-size: 26px; margin: 0 0 12px }

/* 1. Kitap sayfası etkileşimli içeriğe dönüşür */
.donusum { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 56px; margin-top: 40px; align-items: center }
.donusum-oklar { position: absolute; left: 0; top: 0; overflow: visible; pointer-events: none; z-index: 2 }
.donusum-oklar path { fill: none; stroke: var(--kirmizi); stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; transition: stroke-dashoffset .9s ease var(--g, 0s) }
.kitap { background: var(--kitap); border: 1px solid #E6DFC9; box-shadow: 0 2px 0 #EFE8D3, 0 4px 0 #E6DFC9, 0 14px 30px rgba(27, 34, 51, .12); padding: 22px 24px 26px; transform: rotate(-.8deg); font-family: Georgia, "Times New Roman", serif; color: #2B2B2B; max-width: 470px; justify-self: center; width: 100% }
.kitap-ust { display: flex; justify-content: space-between; gap: 12px; font-size: 12px; color: #8A8370; border-bottom: 1px solid #E6DFC9; padding-bottom: 6px; letter-spacing: .02em }
.kitap h4 { font-family: Georgia, serif; font-size: 22px; margin: 14px 0 8px; color: #7A2E1D }
.kitap p { font-size: 14.5px; line-height: 1.55; margin: 0 }
.kitap .sekil { margin: 14px 0; border: 1px solid #E6DFC9; background: #fff; padding: 10px; display: grid; gap: 4px; justify-items: center }
.kitap .sekil svg { width: 70%; height: auto }
.kitap .sekil span { font-size: 12px; color: #8A8370; font-style: italic }
.kitap .soru { border: 1.5px solid #2B2B2B; padding: 10px 12px; font-size: 14px; line-height: 1.5 }
.isaret { outline: 2.5px solid transparent; outline-offset: 3px; border-radius: 3px; transition: outline-color .4s ease var(--g, 0s) }
.ciktilar { display: grid; gap: 22px; min-width: 0 }
.cikti { position: relative; background: #fff; border-radius: 14px; box-shadow: 0 1px 2px rgba(27, 34, 51, .1), 0 10px 26px rgba(27, 34, 51, .12); padding: 14px 16px; transition: transform .6s cubic-bezier(.2, .8, .2, 1) var(--g, 0s), opacity .5s ease var(--g, 0s); min-width: 0 }
.cikti .tur { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-family: var(--el); color: var(--kirmizi); font-size: 19px; margin-bottom: 6px }
.cikti .kod { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; font-weight: 700; color: var(--baski); background: #EEF1F8; padding: 2px 7px; border-radius: 6px; white-space: nowrap }
.cikti .baslik { font-weight: 700; font-size: 16.5px; line-height: 1.35 }
.secenekler { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px }
.secenek { font-size: 14.5px; font-weight: 700; padding: 8px 12px; border-radius: 10px; border: 1.5px solid #D9DFEC; background: #fff; color: var(--baski); transition: background .35s ease var(--g, 0s), border-color .35s ease var(--g, 0s), color .35s ease var(--g, 0s) }
.secenek.dogru { background: #E2F4EB; border-color: var(--yesil); color: #136B43 }
.ilerleme { height: 8px; border-radius: 99px; background: #EEF1F8; margin-top: 10px; overflow: hidden }
.ilerleme i { display: block; height: 100%; width: 66%; background: var(--mavi); border-radius: 99px; transition: width 1s ease var(--g, 0s) }
.cikti video { display: block; width: 100%; border-radius: 8px; margin-top: 6px }
.donusum.hazir .cikti { transform: translateX(28px); opacity: 0 }
.donusum.hazir .secenek.dogru { background: #fff; border-color: #D9DFEC; color: var(--baski) }
.donusum.hazir .ilerleme i { width: 0 }
.donusum:not(.hazir) .isaret { outline-color: var(--kirmizi) }

/* 2. Deneyler ve kendiniz deneyin */
.deneyler { display: grid; grid-template-columns: minmax(0, 1fr); gap: 46px 30px; margin-top: 36px }
.deneyler .yapisik { padding: 6px 6px 10px }
.deneyler figure:first-child { transform: rotate(-.9deg) }
.deneyler figure:last-child { transform: rotate(.8deg) }
.deneyin { margin-top: 44px; display: grid; gap: 14px }
.deneyin-ust { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px }
.deneyin-ust b { font-family: var(--baslik); font-size: 22px; margin-right: 6px }
.sekme { border: 2px solid var(--baski); background: var(--kagit); border-radius: 6px 9px 7px 10px; padding: 7px 14px; font-family: var(--baslik); font-weight: 700; font-size: 16px; cursor: pointer }
.sekme[aria-selected="true"] { background: var(--baski); color: #fff }
.tablet { border-radius: 26px; padding: 12px; background: var(--gece); box-shadow: 0 24px 60px rgba(27, 34, 51, .3) }
.tablet-ekran { border-radius: 16px; background: var(--zemin); min-height: 380px; overflow: hidden; position: relative }
.tablet-kapak { position: absolute; inset: 0; display: grid; place-items: center }
.tablet-kapak img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top; opacity: .5 }
.tablet-kapak .dugme { position: relative; box-shadow: 0 12px 30px rgba(27, 34, 51, .25) }
.parca-yer { padding: 16px }
.olcek { transform-origin: top left; font-family: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.5 }
.bitti-not { position: absolute; top: 12px; right: 12px; z-index: 3; background: var(--yesil); color: #fff; font-weight: 700; font-size: 14px; padding: 8px 12px; border-radius: 10px }

/* Oyunlaştırma: rozetler deftere yapışır */
.oyun { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; margin-top: 36px }
.oyun-kart { background: #fff; border-radius: 18px; box-shadow: 0 1px 2px rgba(27, 34, 51, .1), 0 12px 28px rgba(27, 34, 51, .12); padding: 20px; min-width: 0 }
.oyun-kart h4 { font-family: var(--baslik); font-size: 19px; margin: 0 0 12px }
.seviye { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 18px; align-items: center }
.halka { width: 120px; height: 120px; transform: rotate(-90deg) }
.halka circle { fill: none; stroke-width: 11 }
.halka .iz { stroke: #EEF1F8 }
.halka .dolu { stroke: var(--mavi); stroke-linecap: round; stroke-dasharray: 314.16; stroke-dashoffset: 73.5; transition: stroke-dashoffset 1.6s cubic-bezier(.3, .7, .2, 1) .2s }
.seviye-orta { position: relative }
.seviye-orta > span { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; font-family: var(--baslik); font-weight: 700; font-size: 34px; line-height: 1 }
.seviye-orta small { display: block; font-family: var(--metin); font-size: 12px; font-weight: 700; color: var(--soluk) }
.xp { font-family: var(--baslik); font-weight: 700; font-size: 30px; font-variant-numeric: tabular-nums }
.xp-alt { font-size: 14.5px; color: var(--soluk) }
.seri { list-style: none; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 6px; margin: 16px 0 0; padding: 0; text-align: center; font-size: 12.5px; font-weight: 700; color: var(--soluk) }
.seri i { display: block; width: 30px; height: 30px; margin: 0 auto 4px; border-radius: 50%; background: #EEF1F8; position: relative; transition: background .3s ease var(--g, 0s), transform .3s cubic-bezier(.3, 1.6, .5, 1) var(--g, 0s) }
.seri li.yandi i { background: var(--altin) }
.seri li.yandi i::after { content: ""; position: absolute; inset: 8px 9px 7px; background: #fff; clip-path: polygon(50% 0, 78% 42%, 70% 100%, 30% 100%, 22% 42%); opacity: .9 }
.gorev { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; align-items: center; padding: 10px 0; border-bottom: 1px dashed #DCE2EE }
.gorev:last-child { border-bottom: 0 }
.gorev b { font-size: 15.5px }
.gorev em { font-style: normal; font-weight: 700; font-size: 14px; color: var(--yesil); white-space: nowrap }
.gorev .cubuk { grid-column: 1 / -1; height: 8px; border-radius: 99px; background: #EEF1F8; overflow: hidden }
.gorev .cubuk i { display: block; height: 100%; width: 100%; background: var(--yesil); border-radius: 99px; transition: width .9s ease var(--g, 0s) }
.rozetler { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px 10px }
.rozet { display: grid; justify-items: center; gap: 6px; text-align: center; transition: transform .5s cubic-bezier(.3, 1.7, .5, 1) var(--g, 0s), opacity .2s ease var(--g, 0s) }
.rozet span { width: 62px; height: 62px; border-radius: 50%; display: grid; place-items: center; background: radial-gradient(circle at 35% 30%, #FFE7A8, var(--altin)); border: 4px solid #fff; box-shadow: 0 0 0 1px #E8D7A8, 0 6px 14px rgba(27, 34, 51, .18); font-family: var(--baslik); font-weight: 700; font-size: 22px; color: #7A4A00 }
.rozet:nth-child(3n+2) span { background: radial-gradient(circle at 35% 30%, #C9D6FF, #5A74E6); color: #fff }
.rozet:nth-child(3n) span { background: radial-gradient(circle at 35% 30%, #BFF0D6, #2FB37A); color: #fff }
.rozet b { font-size: 13px; line-height: 1.2 }
.rozet:nth-child(odd) { --r: -8deg } .rozet:nth-child(even) { --r: 7deg }
.rozet { transform: rotate(var(--r)) }
.agac-kart { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: center }
.agac-kart svg { width: 96px; height: auto }
.agac-kart ellipse.yaprak { fill: #6E8F2E; transition: fill .35s ease var(--g, 0s) }
.agac-kart p { margin: 4px 0 0; color: var(--soluk); font-size: 16px }
.oyun.hazir .halka .dolu { stroke-dashoffset: 314.16 }
.oyun.hazir .seri li.yandi i { background: #EEF1F8; transform: scale(.7) }
.oyun.hazir .seri li.yandi i::after { opacity: 0 }
.oyun.hazir .gorev .cubuk i { width: 0 }
.oyun.hazir .rozet { transform: scale(0) rotate(-40deg); opacity: 0 }
.oyun.hazir .agac-kart ellipse.yaprak { fill: #E3E7F0 }

/* Zeytin sohbeti: uygulamadaki pencere, kâğıda yapıştırılmış */
.zeytin { display: grid; grid-template-columns: minmax(0, 1fr); gap: 30px; margin-top: 36px; align-items: start }
.sohbet { background: #fff; border-radius: 20px; overflow: hidden; box-shadow: 0 1px 2px rgba(27, 34, 51, .12), 0 18px 44px rgba(27, 34, 51, .2); display: flex; flex-direction: column; min-width: 0; transform: rotate(-.6deg) }
.sohbet-ust { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--gece); color: #fff }
.sohbet-ust img { width: 42px; height: 42px; border-radius: 12px; background: #2A3270; object-fit: contain; padding: 2px }
.sohbet-ust b { font-size: 18px; display: block; line-height: 1.1 }
.sohbet-ust small { color: #B6BEE3; font-size: 13.5px }
.canli { margin-left: auto; font-size: 12px; font-weight: 700; letter-spacing: .05em; color: #0F5132; background: #BFF0D6; padding: 4px 8px; border-radius: 99px }
.akis { display: flex; flex-direction: column; gap: 10px; padding: 16px; height: 360px; overflow-y: auto; overscroll-behavior: contain; background: var(--zemin) }
.mesaj { max-width: 86%; padding: 10px 14px; border-radius: 16px; font-size: 15.5px; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere }
.mesaj.z { align-self: flex-start; background: #fff; border-bottom-left-radius: 5px; box-shadow: 0 1px 2px rgba(27, 34, 51, .08) }
.mesaj.o { align-self: flex-end; background: var(--mavi); color: #fff; border-bottom-right-radius: 5px }
.mesaj.bekliyor { color: var(--kursun); font-style: italic }
.oneriler { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 16px 4px; background: #fff }
.oneri { border: 0; background: #EEF1FD; color: var(--mavi-koyu); font-weight: 700; font-size: 14px; padding: 8px 12px; border-radius: 99px; cursor: pointer; text-align: left }
.oneri:hover { background: #DDE3FB }
.oneri:disabled { opacity: .45; cursor: default }
.yaz { display: flex; gap: 8px; padding: 10px 16px 14px; background: #fff }
.yaz input { flex: 1; min-width: 0; border: 1.5px solid #D9DFEC; border-radius: 12px; padding: 10px 12px; font: inherit; font-size: 15.5px; color: var(--baski); background: #fff }
.yaz input:focus { outline: none; border-color: var(--mavi) }
.yaz .dugme { font-size: 15px; padding: 9px 14px }
.sohbet-not { font-size: 15px; color: var(--soluk); margin: 0 }

/* Tanıtım videosu */
.no.oynat::before { content: ""; width: 0; height: 0; margin-left: 5px; border-left: 16px solid var(--kirmizi); border-top: 10px solid transparent; border-bottom: 10px solid transparent }
.video-kart { margin-top: 36px; padding: 8px 8px 12px; transform: rotate(-.5deg); max-width: 1000px }
.video-kart video { aspect-ratio: 16 / 9; background: #000 }

/* Dikkat kutusu */
.dikkat { margin-top: 120px; background: var(--dikkat); padding: 32px 26px 24px; border-color: var(--kirmizi); box-shadow: 6px 6px 0 rgba(207, 46, 46, .14) }
.dikkat .kutu-etiket { color: var(--dikkat); background: var(--kirmizi) }
.dikkat h2 { font-family: var(--baslik); font-weight: 700; font-size: clamp(26px, 3vw, 34px); margin: 0 }
.dikkat ul { margin: 16px 0 0; padding: 0; list-style: none; display: grid; gap: 10px }
.dikkat li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 8px }
.dikkat li::before { content: "!"; font-family: var(--baslik); font-weight: 700; color: var(--kirmizi) }

/* Pilot başvuru formu: kâğıda doldurulan bir form */
.pilot { padding-top: 120px }
.pilot h2 { font-family: var(--baslik); font-weight: 700; font-size: clamp(32px, 4.4vw, 52px); line-height: 1.05; margin: 0; text-wrap: balance }
.form-kagit { margin-top: 34px; background: #fff; padding: 28px 24px 24px; box-shadow: 0 1px 2px rgba(27, 34, 51, .12), 0 16px 36px rgba(27, 34, 51, .14); max-width: 760px; transform: rotate(-.4deg) }
.form-izgara { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px 28px }
.alan { display: grid; gap: 2px; min-width: 0 }
.alan label { font-family: var(--baslik); font-weight: 700; font-size: 15px }
.alan label small { font-family: var(--metin); font-weight: 400; color: var(--kursun) }
.alan input, .alan select { width: 100%; border: 0; border-bottom: 2px solid var(--baski); border-radius: 0; padding: 6px 2px; font-family: var(--el); font-size: 22px; color: var(--mavi); background: transparent }
.alan select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--baski) 50%), linear-gradient(135deg, var(--baski) 50%, transparent 50%); background-position: calc(100% - 14px) 55%, calc(100% - 8px) 55%; background-size: 6px 6px; background-repeat: no-repeat }
.alan input:focus, .alan select:focus { outline: none; border-bottom-color: var(--mavi) }
.alan input[aria-invalid="true"], .alan select[aria-invalid="true"] { border-bottom-color: var(--kirmizi); background-color: #FFF7F6 }
.onay { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 10px; align-items: start; font-size: 16px; color: var(--soluk) }
.onay input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--mavi) }
.onay input[aria-invalid="true"] { outline: 2px solid var(--kirmizi); outline-offset: 2px }
.form-alt { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 4px }
.hata { font-family: var(--el); color: var(--kirmizi); font-size: 19px }
.tesekkur { display: grid; gap: 8px }
.tesekkur b { font-family: var(--baslik); font-size: 28px }
.tesekkur:focus { outline: none }

/* Alt bilgi */
.alt-bilgi { border-top: 2px solid var(--baski); margin-top: 110px; padding-block: 22px 40px; display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; font-size: 15px; color: var(--soluk) }
.alt-bilgi img { height: 22px }
.alt-bilgi nav { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-left: auto }
.alt-bilgi nav a { font-weight: 700; text-decoration: none }

/* Video penceresi (üstteki bağlantı) */
dialog.pencere { border: 0; padding: 0; background: transparent; width: min(1100px, calc(100vw - 24px)); max-width: none }
dialog.pencere::backdrop { background: rgba(14, 18, 40, .82) }
.pencere-ic { position: relative; border-radius: 14px; overflow: hidden; background: #000 }
.pencere-ic video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #000 }
.pencere-kapat { position: absolute; top: 10px; right: 10px; z-index: 2; width: 40px; height: 40px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .92); font-size: 18px; font-weight: 700; cursor: pointer }

/* Metin sayfaları (aydınlatma metni) */
.metin-sayfa { max-width: 46em; padding-block: 40px 40px }
.metin-sayfa h1 { font-family: var(--baslik); font-weight: 700; font-size: clamp(34px, 5vw, 48px); line-height: 1.05; margin: 0 }
.metin-sayfa h2 { font-family: var(--baslik); font-weight: 700; font-size: 23px; margin: 36px 0 0 }
.metin-sayfa p, .metin-sayfa li { color: var(--soluk); margin-top: 10px }
.metin-sayfa ul { padding-left: 1.2em; margin: 0 }
.metin-sayfa strong { color: var(--baski) }
.metin-sayfa .tarih-satiri { font-family: var(--el); color: var(--mavi); font-size: 21px; margin-top: 8px }
.taslak-not { margin-top: 20px; padding: 14px 16px; background: var(--dikkat); color: var(--baski) !important; font-size: 16px; border: 2px solid var(--kirmizi) }

@media (min-width: 760px) {
  .kolaj { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .deneyler { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .oyun { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .form-izgara { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .form-izgara .tam { grid-column: 1 / -1 }
  .form-kagit { padding: 34px 36px 28px }
}
@media (min-width: 900px) {
  .tanim { padding: 42px 44px 32px }
  .uc-is { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px 32px }
  .uc-is li { grid-template-columns: minmax(0, 1fr); gap: 10px }
  .donusum { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 90px }
  .zeytin { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 48px; align-items: center }
  .dikkat { padding: 40px 44px 32px }
  .dikkat ul { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 40px }
}
@media (max-width: 599px) {
  :root { --k: 18px }
  body { font-size: 17px }
  .tanim, .dikkat { padding: 28px 18px 20px }
  .bolum, .pilot { padding-top: 96px }
  .no { width: 46px; height: 46px; font-size: 22px }
  .seviye { grid-template-columns: 96px minmax(0, 1fr) }
  .halka { width: 96px; height: 96px }
  .seviye-orta > span { font-size: 28px }
  .rozet span { width: 52px; height: 52px; font-size: 19px }
  .parca-yer { padding: 10px }
  .tablet { padding: 8px; border-radius: 20px }
  .sag-ust { justify-items: start }
  .ust-eylem { justify-content: flex-start }
}
/* Geniş ekranda defter bir sıranın üstünde duran spiralli bir yaprak olur */
@media (min-width: 1100px) {
  html { background: var(--masa) }
  body {
    background-color: var(--masa);
    background-image: repeating-linear-gradient(91deg, var(--masa-damar) 0 2px, transparent 2px 11px), repeating-linear-gradient(89deg, rgba(255, 255, 255, .06) 0 1px, transparent 1px 17px);
    background-size: auto; padding-block: 40px 70px;
  }
  .defter {
    max-width: 1380px; padding: 18px 72px 40px 156px; border-radius: 3px 6px 6px 3px;
    background-color: var(--kagit);
    background-image: linear-gradient(var(--kare) 1px, transparent 1px), linear-gradient(90deg, var(--kare) 1px, transparent 1px);
    background-size: var(--k) var(--k); background-position: -1px -1px;
    box-shadow: 0 1px 0 #E2E6ED, 0 3px 0 var(--kagit), 0 4px 0 #DADFE7, 0 6px 0 var(--kagit), 0 7px 0 #D2D8E1, 0 28px 60px rgba(70, 50, 20, .22);
  }
  .defter::before { left: 124px; top: 0; bottom: 0 }
  .defter::after {
    content: ""; position: absolute; left: -20px; top: 22px; bottom: 22px; width: 70px; pointer-events: none;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='70' height='32'%3E%3Ccircle cx='48' cy='16' r='5.5' fill='%23CBBC9F'/%3E%3Cpath d='M48 13 C36 2 10 2 8 15 C7 23 11 27 17 28' fill='none' stroke='%237A808C' stroke-width='3.4' stroke-linecap='round'/%3E%3C/svg%3E") repeat-y;
    background-size: 70px 32px;
  }
  .alt-bilgi { margin-top: 80px }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto }
  .donusum-oklar path, .cikti, .secenek, .ilerleme i, .halka .dolu, .seri i, .gorev .cubuk i, .rozet, .agac-kart ellipse.yaprak, .isaret { transition: none }
}