:root {
  --zemin: #0b1626;
  --zemin2: #12263a;
  --cizgi: rgba(255, 255, 255, .16);
  --yazi: #e8f1f8;
  --soluk: #8aa3b8;
  --dogru: #4fb3e0;     /* buz mavisi: doğru harf, doğru yer */
  --var: #f0a03c;       /* kor turuncusu: harf var, yeri yanlış */
  --yok: #2a3b4e;       /* koyu buz: harf yok */
  --tus: #2f4760;
  --kart: rgba(18, 38, 58, .92);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  font: 16px/1.5 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  color: var(--yazi);
  background: radial-gradient(900px 500px at 50% -10%, #1d3a5c 0%, #0f2136 50%, var(--zemin) 100%) fixed var(--zemin);
  overflow: hidden;
  user-select: none;
}
button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

#kar { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; }

.uygulama {
  position: relative; z-index: 1;
  height: 100%; max-width: 520px; margin: 0 auto;
  display: flex; flex-direction: column;
  padding: env(safe-area-inset-top) 8px calc(8px + env(safe-area-inset-bottom));
}

header { display: flex; align-items: center; justify-content: space-between; padding: 10px 6px 6px; }
h1 { margin: 0; font-size: 28px; letter-spacing: 6px; font-weight: 800; text-shadow: 0 0 18px rgba(142, 202, 230, .55); }
h1 span { color: var(--dogru); }
.simge {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--cizgi);
  background: rgba(255, 255, 255, .05); font-size: 18px; font-weight: 700;
  display: grid; place-items: center; padding: 0;
}

.secimler { display: flex; justify-content: space-between; gap: 8px; padding: 4px 6px 8px; }
.sekmeler, .uzunluklar { display: flex; background: rgba(255, 255, 255, .06); border: 1px solid var(--cizgi); border-radius: 12px; padding: 3px; }
.sekmeler button, .uzunluklar button {
  border: 0; background: transparent; border-radius: 9px; padding: 6px 10px; font-size: 14px; color: var(--soluk);
}
.uzunluklar button { padding: 6px 11px; font-weight: 700; }
.sekmeler button[aria-selected="true"], .uzunluklar button[aria-checked="true"] { background: var(--dogru); color: #06121f; font-weight: 700; }

.sureli-bilgi { padding: 0 8px 6px; }
.uzunluklar[hidden], .seviye-bilgi[hidden], .sureli-bilgi[hidden] { display: none; }
.secimler:has(.uzunluklar[hidden]) .sekmeler { flex: 1; }
.secimler:has(.uzunluklar[hidden]) .sekmeler button { flex: 1; }
.sure-cubuk { height: 6px; border-radius: 3px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.sure-cubuk i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--var), var(--dogru)); transition: width .25s linear; }
.sureli-satir { align-items: center; display: flex; justify-content: space-between; font-size: 14px; color: var(--soluk); margin-top: 3px; }
.sureli-satir b { color: #fff; }

/* Tahta */
main {
  flex: 1; display: grid; align-content: center; justify-content: center; gap: 6px; padding: 6px 0; min-height: 0;
}
.satir { display: grid; gap: 6px; }
.satir.salla { animation: salla .45s; }
.kare {
  width: var(--kare, 58px); height: var(--kare, 58px);
  display: grid; place-items: center;
  font-size: calc(var(--kare, 58px) * .5); font-weight: 800;
  border: 2px solid var(--cizgi); border-radius: 8px;
  background: rgba(255, 255, 255, .03);
  transition: background-color 0s linear, border-color 0s linear;
}
.kare.dolu { border-color: rgba(191, 230, 255, .6); animation: bas .12s; }
.kare.dogru, .kare.var, .kare.yok {
  animation: cevir .5s ease-in-out both;
  animation-delay: var(--gecikme, 0s);
  transition-delay: calc(var(--gecikme, 0s) + .25s);
}
.kare.dogru { background: var(--dogru); border-color: var(--dogru); color: #06121f; box-shadow: 0 0 14px rgba(79, 179, 224, .55); }
.kare.var { background: var(--var); border-color: var(--var); color: #1a0d00; }
.kare.yok { background: var(--yok); border-color: var(--yok); color: #b9cfe0; }
.kare.zipla { animation: zipla .5s ease-out both; animation-delay: var(--gecikme, 0s); }

@keyframes bas { 50% { transform: scale(1.1); } }
@keyframes cevir { 0% { transform: rotateX(0); } 50% { transform: rotateX(90deg); } 100% { transform: rotateX(0); } }
@keyframes zipla { 30% { transform: translateY(-22px); } 55% { transform: translateY(4px); } 75% { transform: translateY(-6px); } }
@keyframes salla { 20%, 60% { transform: translateX(-8px); } 40%, 80% { transform: translateX(8px); } }

/* Klavye */
.klavye { display: flex; flex-direction: column; gap: 7px; padding: 6px 0 4px; }
.klavye-satir { display: flex; gap: 5px; justify-content: center; }
.tus {
  flex: 1; max-width: 44px; height: 54px; border: 0; border-radius: 7px;
  background: var(--tus); font-size: 16px; font-weight: 700; padding: 0;
  transition: background-color .2s;
}
.tus.genis { flex: 1.6; max-width: 70px; font-size: 13px; }
.tus:active { filter: brightness(1.3); }
.tus.dogru { background: var(--dogru); color: #06121f; }
.tus.var { background: var(--var); color: #1a0d00; }
.tus.yok { background: #15222f; color: #5d7385; }

/* Bildirim */
.bildirim {
  position: fixed; top: 92px; left: 50%; transform: translate(-50%, -10px);
  background: #fff; color: #0b1626; font-weight: 700; padding: 9px 16px; border-radius: 10px;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 30; white-space: nowrap;
}
.bildirim.goster { opacity: 1; transform: translate(-50%, 0); }

/* Pencere */
.perde {
  position: fixed; inset: 0; z-index: 20; background: rgba(4, 10, 18, .6);
  display: grid; place-items: center; padding: 16px; backdrop-filter: blur(3px);
}
.perde[hidden] { display: none; }
.pencere {
  position: relative; width: 100%; max-width: 420px; max-height: 88vh; overflow-y: auto;
  background: var(--kart); border: 1px solid var(--cizgi); border-radius: 18px;
  padding: 26px 22px 22px; box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
  animation: ac .25s ease-out;
}
@keyframes ac { from { transform: translateY(20px) scale(.97); opacity: 0; } }
.kapat { position: absolute; top: 8px; right: 10px; border: 0; background: none; font-size: 28px; line-height: 1; color: var(--soluk); padding: 4px 8px; }
.pencere h2 { margin: 0 0 12px; font-size: 20px; letter-spacing: .5px; }
.pencere p { margin: 0 0 10px; color: #cfe0ec; }
.pencere .ornek { display: flex; gap: 4px; margin: 6px 0 4px; }
.pencere .ornek .kare { --kare: 36px; animation: none; }
.kucuk-yazi { font-size: 13px; color: var(--soluk); }

.anlam-kelime { font-size: 34px; font-weight: 800; letter-spacing: 4px; color: var(--dogru); margin: 2px 0 6px; text-shadow: 0 0 16px rgba(79, 179, 224, .5); }
.anlam-kelime.kayip { color: var(--var); text-shadow: none; }
.anlam { font-size: 17px; color: #fff !important; }
.ornek-cumle { font-style: italic; color: #b9cfe0 !important; border-left: 3px solid var(--dogru); padding-left: 10px; }

.istatistik { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; text-align: center; margin: 14px 0; }
.istatistik b { display: block; font-size: 28px; line-height: 1.1; }
.istatistik small { font-size: 11px; color: var(--soluk); line-height: 1.2; display: block; }
.dagilim { margin: 8px 0 14px; }
.dagilim div { display: flex; align-items: center; gap: 6px; margin: 3px 0; font-size: 14px; }
.dagilim span { width: 12px; text-align: right; color: var(--soluk); }
.dagilim i { display: block; min-width: 22px; padding: 1px 7px; border-radius: 4px; background: var(--yok); font-style: normal; text-align: right; font-weight: 700; }
.dagilim i.bu { background: var(--dogru); color: #06121f; }

.alt-satir { display: flex; align-items: center; justify-content: space-between; gap: 12px; border-top: 1px solid var(--cizgi); padding-top: 14px; margin-top: 6px; }
.geri-sayim small { display: block; font-size: 12px; color: var(--soluk); }
.geri-sayim b { font-size: 24px; font-variant-numeric: tabular-nums; }
.buyuk-dugme {
  border: 0; border-radius: 12px; background: var(--dogru); color: #06121f; font-weight: 800;
  padding: 12px 20px; font-size: 16px;
}
.buyuk-dugme.ikincil { background: transparent; color: var(--yazi); border: 1px solid var(--cizgi); }

.bulunanlar { list-style: none; padding: 0; margin: 10px 0 0; }
.bulunanlar li { padding: 8px 0; border-bottom: 1px solid var(--cizgi); }
.bulunanlar li:last-child { border-bottom: 0; }
.bulunanlar b { color: var(--dogru); letter-spacing: 1px; }
.bulunanlar li.kacan b { color: var(--var); }
.bulunanlar span { display: block; font-size: 14px; color: #b9cfe0; }

textarea.paylas-metni { width: 100%; height: 150px; margin-top: 10px; background: #06101c; color: #fff; border: 1px solid var(--cizgi); border-radius: 10px; padding: 10px; font: 14px/1.4 monospace; }

.sag-simgeler { display: flex; gap: 8px; }
.pas { border: 1px solid var(--cizgi); background: rgba(255, 255, 255, .06); border-radius: 999px; padding: 2px 12px; font-size: 13px; color: var(--soluk); }
.pas:active { filter: brightness(1.3); }
.sure-cubuk.ceza i { background: #e0605a; }

/* Ayarlar */
.ayar { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--cizgi); }
.ayar:last-of-type { border-bottom: 0; }
.ayar b { display: block; }
.ayar small { display: block; font-size: 13px; color: var(--soluk); line-height: 1.35; }
.anahtar { position: relative; flex: none; width: 48px; height: 28px; border-radius: 14px; border: 0; background: var(--yok); padding: 0; transition: background-color .2s; }
.anahtar::after { content: ""; position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: #fff; transition: transform .2s; }
.anahtar[aria-checked="true"] { background: var(--dogru); }
.anahtar[aria-checked="true"]::after { transform: translateX(20px); }
.anahtar:disabled { opacity: .45; cursor: not-allowed; }
.zor-rozet { font-size: 11px; font-weight: 800; letter-spacing: 1px; color: var(--var); border: 1px solid var(--var); border-radius: 6px; padding: 0 5px; margin-left: 6px; vertical-align: middle; }

/* Seviyeler */
.seviye-bilgi { padding: 0 6px 4px; }
.seviye-ust { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.harita-dugme { display: flex; align-items: center; gap: 8px; border: 1px solid var(--cizgi); background: rgba(255, 255, 255, .06); border-radius: 12px; padding: 4px 12px 4px 8px; text-align: left; }
.harita-simge { font-size: 20px; }
.harita-dugme b { display: block; font-size: 15px; line-height: 1.2; }
.harita-dugme small { display: block; font-size: 11px; color: var(--soluk); line-height: 1.2; }
.seviye-sure { font-size: 15px; color: var(--soluk); font-variant-numeric: tabular-nums; }
.seviye-sure b { color: #fff; }
.seviye-sure.az b { color: #ff7b72; }
.kar-para { font-weight: 800; color: #bfe6ff; background: rgba(79, 179, 224, .14); border: 1px solid rgba(79, 179, 224, .35); border-radius: 999px; padding: 3px 12px; font-variant-numeric: tabular-nums; }
.kar-para.artti { animation: bas .4s; }
#seviyeCubukKap { margin-top: 6px; }
.ipuclari { display: flex; gap: 8px; margin-top: 6px; }
.ipucu { flex: 1; border: 1px solid var(--cizgi); background: rgba(255, 255, 255, .05); border-radius: 10px; padding: 5px 8px; font-size: 13px; color: var(--yazi); }
.ipucu small { color: #bfe6ff; font-weight: 700; margin-left: 4px; }
.ipucu:disabled { opacity: .4; cursor: not-allowed; }
.kare.ipucu-harf { color: rgba(79, 179, 224, .55); border-style: dashed; border-color: rgba(79, 179, 224, .55); }

.yildizlar { font-size: 34px; letter-spacing: 6px; text-align: center; margin: 2px 0 8px; }
.yildizlar i { font-style: normal; color: #ffd166; text-shadow: 0 0 12px rgba(255, 209, 102, .6); display: inline-block; animation: yildiz .5s both; }
.yildizlar i.bos { color: rgba(255, 255, 255, .18); text-shadow: none; }
.yildizlar i:nth-child(2) { animation-delay: .15s; } .yildizlar i:nth-child(3) { animation-delay: .3s; }
@keyframes yildiz { from { transform: scale(0) rotate(-90deg); opacity: 0; } }
.odul { text-align: center; color: #bfe6ff; font-weight: 800; margin-bottom: 10px; }
.yeni-ozellik { background: rgba(240, 160, 60, .14); border: 1px solid rgba(240, 160, 60, .5); border-radius: 10px; padding: 8px 12px; font-size: 14px; color: #ffd8a8 !important; }

.bolum-sekme { display: flex; gap: 4px; overflow-x: auto; padding-bottom: 6px; margin: 0 -4px 8px; scrollbar-width: none; }
.bolum-sekme button { flex: none; border: 1px solid var(--cizgi); background: rgba(255, 255, 255, .05); border-radius: 8px; padding: 4px 10px; font-size: 13px; color: var(--soluk); }
.bolum-sekme button[aria-selected="true"] { background: var(--dogru); color: #06121f; font-weight: 800; border-color: var(--dogru); }
.bolum-sekme button:disabled { opacity: .35; }
.bolum-baslik { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.bolum-baslik small { color: var(--soluk); font-size: 13px; }
.seviye-izgara { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.seviye-izgara button { aspect-ratio: 1; border: 1px solid var(--cizgi); border-radius: 10px; background: rgba(255, 255, 255, .06); padding: 0; font-weight: 800; font-size: 15px; display: flex; flex-direction: column; align-items: center; justify-content: center; line-height: 1.1; }
.seviye-izgara button small { font-size: 9px; letter-spacing: 1px; color: #ffd166; font-weight: 400; }
.seviye-izgara button.gecildi { background: rgba(79, 179, 224, .18); border-color: rgba(79, 179, 224, .4); }
.seviye-izgara button.simdiki { background: var(--dogru); color: #06121f; border-color: var(--dogru); box-shadow: 0 0 14px rgba(79, 179, 224, .6); }
.seviye-izgara button:disabled { color: rgba(255, 255, 255, .25); background: rgba(255, 255, 255, .02); cursor: not-allowed; }

/* Yüksek kontrast */
body.kontrast { --dogru: #3fc35a; --var: #ffd23f; }
body.kontrast .kare.dogru, body.kontrast .tus.dogru { color: #04210b; }
body.kontrast .kare.dogru { box-shadow: 0 0 14px rgba(63, 195, 90, .5); }

@media (max-height: 700px) {
  .tus { height: 46px; }
  header { padding-top: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .kare.dogru, .kare.var, .kare.yok, .kare.zipla, .kare.dolu, .satir.salla { animation: none; transition-delay: 0s; }
}