:root {
  --ana: #2f5fd0;
  --ana-koyu: #2449a8;
  --zemin: #f4f6fb;
  --kart: #ffffff;
  --yazi: #1d2433;
  --soluk: #667085;
  --cizgi: #dfe3ec;
  --yesil: #1a7f4b;
  --yesil-zemin: #e4f5ec;
  --sari: #8a5a00;
  --sari-zemin: #fff4d6;
  --kirmizi: #b42318;
  --kirmizi-zemin: #fde8e6;
  --mavi-zemin: #e8eefc;
}

* { box-sizing: border-box; }
html { font-size: 17px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--zemin);
  color: var(--yazi);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  line-height: 1.55;
}
a { color: var(--ana); }
h1 { font-size: 1.6rem; margin: 0.6rem 0 1rem; line-height: 1.25; }
h2 { font-size: 1.2rem; margin: 0 0 0.6rem; }
h3 { font-size: 1.05rem; margin: 1.2rem 0 0.4rem; }
h4 { font-size: 1rem; margin: 0 0 0.2rem; }
p { margin: 0 0 0.7rem; }
img { max-width: 100%; }
code { background: var(--mavi-zemin); padding: 0.1em 0.35em; border-radius: 4px; font-size: 0.9em; }

/* ─── Üst çubuk ─── */
.ust {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 1.2rem;
  padding: 0.6rem 1rem; background: var(--kart); border-bottom: 1px solid var(--cizgi);
}
.marka { font-weight: 700; color: var(--yazi); text-decoration: none; }
.ust nav { display: flex; flex-wrap: wrap; gap: 0.2rem 1rem; flex: 1; }
.ust nav a { text-decoration: none; padding: 0.3rem 0; }
.ust-sag { display: flex; align-items: center; gap: 0.8rem; font-size: 0.9rem; }
.ust-sag form { margin: 0; }
@media (max-width: 600px) {
  .ust { justify-content: space-between; }
  .ust nav { order: 3; flex-basis: 100%; }
}

main { max-width: 760px; margin: 0 auto; padding: 1rem 1rem 4rem; }
main.dar { max-width: 420px; }
main.genis { max-width: 1100px; }
section { margin-bottom: 1.2rem; }

/* ─── Kart, bildirim, rozet ─── */
.kart {
  background: var(--kart); border: 1px solid var(--cizgi); border-radius: 14px;
  padding: 1rem 1.1rem; margin-bottom: 1rem;
}
.kart.orta { text-align: center; }
.ozet-karti { background: var(--mavi-zemin); border-color: #c9d6f7; font-size: 1.05rem; }
.ozet-karti.ic { border-radius: 10px; padding: 0.8rem 1rem; margin-bottom: 0.8rem; }
.ozet-karti p:last-child { margin-bottom: 0; }

.bildirim { border-radius: 10px; padding: 0.7rem 0.9rem; margin-bottom: 1rem; background: var(--mavi-zemin); }
.bildirim.hata { background: var(--kirmizi-zemin); color: var(--kirmizi); }
.bildirim.uyari { background: var(--sari-zemin); color: var(--sari); }
.bildirim.tamam { background: var(--yesil-zemin); color: var(--yesil); }
.bildirim ul { margin: 0.3rem 0 0; padding-left: 1.2rem; }

.rozet { display: inline-block; border-radius: 999px; padding: 0.1rem 0.6rem; font-size: 0.8rem; font-weight: 600; white-space: nowrap; }
.rozet.iyi { background: var(--yesil-zemin); color: var(--yesil); }
.rozet.tekrar { background: var(--sari-zemin); color: var(--sari); }
.rozet.ustune_egil { background: var(--kirmizi-zemin); color: var(--kirmizi); }
.rozet.veri_az { background: #eceff5; color: var(--soluk); }
.etiket { display: inline-block; background: var(--mavi-zemin); color: var(--ana-koyu); border-radius: 999px; padding: 0.15rem 0.7rem; font-weight: 600; text-decoration: none; }
.soluk { color: var(--soluk); font-size: 0.9rem; }
.uyari-metin { color: var(--sari); font-weight: 600; }

/* ─── Düğmeler ─── */
.dugme {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0.55rem 1.2rem; border: 0; border-radius: 12px;
  background: var(--ana); color: #fff; font: inherit; font-weight: 600;
  text-decoration: none; cursor: pointer;
}
.dugme:hover { background: var(--ana-koyu); }
.dugme:disabled { background: #b9c2d6; cursor: not-allowed; }
.dugme.ikincil { background: var(--kart); color: var(--ana); border: 1.5px solid var(--ana); }
.dugme.ikincil:hover { background: var(--mavi-zemin); }
.dugme.buyuk { width: 100%; min-height: 56px; font-size: 1.1rem; margin: 0.6rem 0; }
.dugme.dev { width: 100%; min-height: 110px; font-size: 1.6rem; border-radius: 18px; margin-bottom: 1.2rem; }
.dugme.kucuk { min-height: 36px; padding: 0.3rem 0.8rem; font-size: 0.9rem; }
.baglanti { background: none; border: 0; padding: 0; color: var(--ana); font: inherit; text-decoration: underline; cursor: pointer; }
.eylemler { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.eylemler form { margin: 0; }

/* ─── Formlar ─── */
label { display: block; margin-bottom: 0.8rem; font-weight: 600; }
input[type=text], input[type=password], input[type=number], select, textarea {
  display: block; width: 100%; margin-top: 0.25rem; padding: 0.6rem 0.7rem;
  border: 1.5px solid var(--cizgi); border-radius: 10px; font: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--ana); outline-offset: 1px; }
label.onay { font-weight: 400; display: flex; gap: 0.5rem; align-items: center; }
fieldset { border: 0; padding: 0; margin: 0 0 1rem; }
legend { font-weight: 600; padding: 0; margin-bottom: 0.4rem; }
.secim { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.secim label { margin: 0; font-weight: 400; }
.secim input { position: absolute; opacity: 0; }
.secim span {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0.4rem 0.9rem;
  border: 1.5px solid var(--cizgi); border-radius: 10px; background: #fff; cursor: pointer;
}
.secim input:checked + span { border-color: var(--ana); background: var(--mavi-zemin); font-weight: 600; }
.secim input:focus-visible + span { outline: 2px solid var(--ana); }
.secim.paketler { margin-bottom: 0.9rem; }
.secim.paketler span { flex-direction: column; align-items: flex-start; min-width: 120px; padding: 0.6rem 0.9rem; }
.satir-form { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 0; }
.satir-form label { margin: 0; }
.satir-form input[type=password], .satir-form input[type=text] { width: 10rem; margin: 0; padding: 0.3rem 0.5rem; }
.izgara-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0 1rem; align-items: end; }
.izgara-form .dugme { margin-bottom: 0.8rem; }
.havale { white-space: pre-line; background: var(--zemin); border-radius: 10px; padding: 0.7rem 0.9rem; }
.giris-karti { margin-top: 12vh; }
.giris-karti h1 { text-align: center; }

/* ─── Fotoğraf yükleme ─── */
.birakma-alani {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.6rem;
  min-height: 220px; padding: 1rem; text-align: center; font-weight: 400;
  border: 2px dashed #a9b6d6; border-radius: 16px; background: var(--kart); cursor: pointer;
}
.birakma-alani.uzerinde { border-color: var(--ana); background: var(--mavi-zemin); }
.birakma-alani input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.birakma-alani img { max-height: 50vh; border-radius: 10px; }
.oneriler { color: var(--soluk); font-size: 0.9rem; padding-left: 1.2rem; }

/* ─── Soru ve çözüm ─── */
.soru-baslik { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-bottom: 0.8rem; }
.soru-gorsel { display: block; max-height: 70vh; margin: 0 auto 0.6rem; border-radius: 10px; border: 1px solid var(--cizgi); }
.soru-metni { white-space: pre-line; font-size: 1.05rem; }
.iki-sutun { display: grid; gap: 1rem; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 720px) { .iki-sutun { grid-template-columns: 1fr 1fr; } }
.secenekler { list-style: none; padding: 0; margin: 0 0 0.7rem; }
.secenekler li { padding: 0.35rem 0.6rem; border-radius: 8px; }
.secenekler li.dogru { background: var(--yesil-zemin); color: var(--yesil); font-weight: 600; }
.secenekler li.yanlis { background: var(--kirmizi-zemin); color: var(--kirmizi); text-decoration: line-through; }

details > summary { cursor: pointer; font-weight: 600; }
details.acilir > summary {
  list-style: none; text-align: center; padding: 0.7rem; margin: -0.3rem -0.3rem 0;
  border-radius: 10px; background: var(--ana); color: #fff;
}
details.acilir > summary::-webkit-details-marker { display: none; }
details.acilir[open] > summary { background: none; color: var(--soluk); text-align: left; padding: 0 0 0.5rem; }

.temel-fikir { font-size: 1.05rem; font-weight: 600; margin-top: 0.8rem; }
.adimlar { padding-left: 0; margin: 0.6rem 0 1rem; list-style: none; counter-reset: adim; }
.adim {
  counter-increment: adim; position: relative; padding: 0.7rem 0.8rem 0.7rem 3rem; margin-bottom: 0.5rem;
  border-radius: 12px; background: var(--zemin);
}
.adim::before {
  content: counter(adim); position: absolute; left: 0.7rem; top: 0.7rem;
  width: 1.7rem; height: 1.7rem; border-radius: 50%; background: var(--ana); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem;
}
.adim p { margin: 0; white-space: pre-line; }
.adim.okunuyor { background: var(--sari-zemin); outline: 2px solid #e6b800; }
.islem {
  margin-top: 0.4rem; padding: 0.5rem 0.7rem; border-radius: 8px; background: #fff; border: 1px solid var(--cizgi);
  font-size: 1.1rem; white-space: pre-line; overflow-x: auto;
}
.cevap { font-size: 1.2rem; }
.not { border-radius: 10px; padding: 0.6rem 0.8rem; margin-bottom: 0.7rem; }
.not.puf { background: var(--yesil-zemin); }
.not.dikkat { background: var(--sari-zemin); }
.not ul { margin: 0.2rem 0 0; padding-left: 1.2rem; }
.ipucu { background: var(--sari-zemin); border-radius: 10px; padding: 0.6rem 0.8rem; }
.sesli-dugme { margin-top: 0.6rem; }
.bolum { margin-bottom: 1rem; }
.bolum p { white-space: pre-line; }

/* ─── Pratik ─── */
.sik-formu { display: grid; gap: 0.6rem; margin-bottom: 1rem; }
.sik {
  display: flex; align-items: center; gap: 0.8rem; min-height: 56px; padding: 0.6rem 0.9rem; text-align: left;
  border: 1.5px solid var(--cizgi); border-radius: 12px; background: var(--kart); font: inherit; cursor: pointer;
}
.sik b { width: 2rem; height: 2rem; flex: none; border-radius: 50%; background: var(--mavi-zemin); color: var(--ana-koyu); display: flex; align-items: center; justify-content: center; }
.sik:hover:not(:disabled) { border-color: var(--ana); }
.sik:disabled { opacity: 0.45; text-decoration: line-through; cursor: not-allowed; }
.pratik-ozeti { padding-left: 1.1rem; margin: 0; }
.pratik-ozeti li { margin-bottom: 0.4rem; }

/* ─── Listeler ve tablolar ─── */
.soru-listesi { list-style: none; padding: 0; margin: 0 0 0.6rem; }
.soru-listesi a {
  display: flex; gap: 0.8rem; align-items: center; padding: 0.6rem; margin-bottom: 0.5rem;
  background: var(--kart); border: 1px solid var(--cizgi); border-radius: 12px; text-decoration: none; color: inherit;
}
.soru-listesi img { width: 72px; height: 72px; object-fit: cover; border-radius: 8px; flex: none; }
.soru-ozeti { display: flex; flex-direction: column; min-width: 0; }
.soru-ozeti .satir { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }

.tablo { width: 100%; border-collapse: collapse; background: var(--kart); border-radius: 12px; overflow: hidden; margin-bottom: 0.8rem; }
.tablo th, .tablo td { padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--cizgi); text-align: left; vertical-align: middle; }
.tablo th { font-size: 0.85rem; color: var(--soluk); font-weight: 600; }
.tablo .sayi { text-align: right; font-variant-numeric: tabular-nums; }
.tablo tr.pasif { opacity: 0.5; }
.tablo input, .tablo select { margin: 0; padding: 0.35rem 0.5rem; }
main.genis section, .tablo-kap { overflow-x: auto; }
@media (max-width: 480px) {
  .tablo th, .tablo td { padding: 0.45rem 0.4rem; font-size: 0.9rem; }
}

.sayaclar { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0.8rem; margin-bottom: 1rem; }
.sayaclar .kart { margin: 0; display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.sayaclar b { font-size: 1.6rem; }
.sayaclar span { color: var(--soluk); font-size: 0.9rem; }
.sayaclar .vurgulu { border-color: #e6b800; background: var(--sari-zemin); }

/* ─── Bekleme perdesi ─── */
#bekleme {
  position: fixed; inset: 0; z-index: 50; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1rem; background: rgba(244, 246, 251, 0.94); font-size: 1.15rem; font-weight: 600; text-align: center; padding: 1rem;
}
#bekleme[hidden] { display: none; }
.donen { width: 54px; height: 54px; border-radius: 50%; border: 6px solid #c9d6f7; border-top-color: var(--ana); animation: don 0.9s linear infinite; }
@keyframes don { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .donen { animation-duration: 3s; } }