:root {
  --mavi: #0d5eaf;        /* Yunan mavisi */
  --mavi-koyu: #073d75;
  --mavi-acik: #e8f1fb;
  --beyaz: #ffffff;
  --zemin: #f6f8fb;
  --metin: #1c2733;
  --gri: #5b6b7b;
  --gri-acik: #dbe3ec;
  --yesil: #1f9d55;
  --sari: #f6c344;
  --golge: 0 2px 12px rgba(13, 94, 175, .10);
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  color: var(--metin);
  background: var(--zemin);
  line-height: 1.65;
}

a { color: var(--mavi); }

/* ---- Üst şerit ---- */
.ust-serit {
  background: linear-gradient(120deg, var(--mavi), var(--mavi-koyu));
  color: #fff;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--golge);
}
.ust-serit .logo {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 1px;
}
.ust-serit .alt {
  opacity: .85;
  font-size: 14px;
}
.ust-serit a { color: #fff; text-decoration: none; }
.ust-serit .geri {
  margin-left: auto;
  background: rgba(255,255,255,.16);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
}
.ust-serit .geri:hover { background: rgba(255,255,255,.28); }

/* ---- Yerleşim ---- */
.kapsayici { max-width: 900px; margin: 0 auto; padding: 28px 22px 80px; }

h1, h2, h3 { color: var(--mavi-koyu); line-height: 1.25; }
h2 {
  margin-top: 42px;
  border-bottom: 3px solid var(--gri-acik);
  padding-bottom: 8px;
}
h2 .no {
  display: inline-block;
  background: var(--mavi);
  color: #fff;
  width: 34px; height: 34px;
  border-radius: 50%;
  text-align: center;
  line-height: 34px;
  font-size: 16px;
  margin-right: 10px;
}

/* ---- Kartlar ---- */
.kart {
  background: var(--beyaz);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--golge);
  margin: 18px 0;
  border: 1px solid var(--gri-acik);
}

.bilgi {
  background: var(--mavi-acik);
  border-left: 5px solid var(--mavi);
  padding: 14px 18px;
  border-radius: 8px;
  margin: 18px 0;
}
.dikkat {
  background: #fff8e6;
  border-left: 5px solid var(--sari);
  padding: 14px 18px;
  border-radius: 8px;
  margin: 18px 0;
}

/* ---- Alfabe ızgarası ---- */
.harf-izgara {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
  margin: 20px 0;
}
.harf {
  background: var(--beyaz);
  border: 1px solid var(--gri-acik);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
  transition: transform .12s, box-shadow .12s;
}
.harf:hover { transform: translateY(-3px); box-shadow: var(--golge); }
.harf .buyuk {
  font-size: 40px;
  font-weight: 700;
  color: var(--mavi-koyu);
  line-height: 1.1;
}
.harf .isim { font-size: 13px; color: var(--gri); margin-top: 2px; }
.harf .ses {
  margin-top: 8px;
  font-weight: 700;
  color: var(--mavi);
}
.harf .ornek { font-size: 13px; color: var(--metin); margin-top: 6px; }

/* ---- Alıştırma ---- */
.alistirma { counter-reset: soru; }
.soru {
  background: var(--beyaz);
  border: 1px solid var(--gri-acik);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 12px 0;
}
.soru .cevap-btn {
  background: var(--mavi-acik);
  color: var(--mavi-koyu);
  border: none;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 13px;
  margin-top: 8px;
}
.soru .cevap-btn:hover { background: #d6e6f8; }
.soru .cevap {
  display: none;
  margin-top: 10px;
  padding: 10px 14px;
  background: #eafaf0;
  border-left: 4px solid var(--yesil);
  border-radius: 6px;
}
.soru .cevap.acik { display: block; }

/* ---- Görev ---- */
.gorev {
  background: linear-gradient(120deg, #073d75, #0d5eaf);
  color: #fff;
  border-radius: var(--radius);
  padding: 22px 24px;
  margin: 26px 0;
}
.gorev h3 { color: #fff; margin-top: 0; }
.gorev a { color: #ffe9a8; }
.gorev .yun { color: #ffe9a8; font-weight: 700; }

/* ---- Ana sayfa ders listesi ---- */
.ders-liste { list-style: none; padding: 0; }
.ders-liste li {
  background: var(--beyaz);
  border: 1px solid var(--gri-acik);
  border-radius: 12px;
  margin: 10px 0;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--golge);
  transition: transform .12s;
}
.ders-liste li:hover { transform: translateX(4px); }
.ders-liste a { text-decoration: none; color: var(--metin); flex: 1; font-weight: 600; }
.ders-liste .rozet {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 700;
}
.rozet.tamam { background: #eafaf0; color: var(--yesil); }
.rozet.aktif { background: var(--mavi-acik); color: var(--mavi); }
.rozet.kilitli { background: #f0f0f0; color: #9aa7b3; }
.ders-liste .no-daire {
  background: var(--mavi);
  color: #fff;
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700;
  flex-shrink: 0;
}

/* ---- İlerleme çubuğu ---- */
.ilerleme-dis {
  background: var(--gri-acik);
  border-radius: 999px;
  height: 14px;
  overflow: hidden;
  margin: 10px 0 4px;
}
.ilerleme-ic {
  background: linear-gradient(90deg, var(--yesil), #2ecc71);
  height: 100%;
}

/* ---- Sözlük tablosu ---- */
table { border-collapse: collapse; width: 100%; margin: 16px 0; }
th, td { border: 1px solid var(--gri-acik); padding: 10px 12px; text-align: left; }
th { background: var(--mavi-acik); color: var(--mavi-koyu); }
.yun { font-size: 20px; color: var(--mavi-koyu); font-weight: 600; }

footer {
  text-align: center;
  color: var(--gri);
  font-size: 13px;
  padding: 30px;
}

/* ---- Etkileşimli egzersiz ---- */
.egz {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  background: var(--beyaz); border: 1px solid var(--gri-acik);
  border-radius: 10px; padding: 12px 16px; margin: 10px 0;
  border-left: 5px solid var(--gri-acik);
}
.egz.dogru { border-left-color: var(--yesil); background: #f3fbf6; }
.egz.yanlis { border-left-color: #e05353; background: #fdf3f3; }
.egz .yun-buyuk { font-size: 26px; color: var(--mavi-koyu); font-weight: 700; min-width: 110px; }
.egz .soru-tr { font-weight: 600; min-width: 110px; }
.egz .giris {
  font-size: 18px; padding: 8px 12px; border: 2px solid var(--gri-acik);
  border-radius: 8px; min-width: 150px; flex: 1;
}
.egz .giris:focus { outline: none; border-color: var(--mavi); }
.egz .kontrol {
  background: var(--mavi); color: #fff; border: none; padding: 9px 16px;
  border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 600;
}
.egz .kontrol:hover { background: var(--mavi-koyu); }
.egz .sonuc { font-weight: 700; font-size: 14px; width: 100%; }
.egz.dogru .sonuc { color: var(--yesil); }
.egz.yanlis .sonuc { color: #c0392b; }

.egz-alt { display: flex; align-items: center; gap: 16px; margin-top: 16px; flex-wrap: wrap; }
.hepsini {
  background: var(--yesil); color: #fff; border: none; padding: 10px 20px;
  border-radius: 8px; cursor: pointer; font-weight: 700; font-size: 15px;
}
.hepsini:hover { filter: brightness(0.95); }
.skor { font-weight: 700; color: var(--mavi-koyu); font-size: 16px; }
.klavye-ipucu { font-size: 13px; color: var(--gri); font-style: italic; margin: 6px 0 0; }

/* ---- Sanal Yunan klavyesi ---- */
#klavye {
  position: fixed; left: 0; right: 0; bottom: 0;
  background: #1c2733; padding: 10px 10px 14px;
  box-shadow: 0 -4px 20px rgba(0,0,0,.3); z-index: 1000;
}
.klavye-baslik {
  display: flex; justify-content: space-between; align-items: center;
  color: #fff; font-size: 14px; max-width: 720px; margin: 0 auto 8px;
}
.klavye-kapat {
  background: rgba(255,255,255,.16); color: #fff; border: none;
  padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 13px;
}
.klavye-satir { display: flex; justify-content: center; gap: 6px; margin: 6px 0; flex-wrap: wrap; }
.tus {
  background: #fff; border: none; border-radius: 8px;
  min-width: 42px; height: 46px; font-size: 20px; cursor: pointer;
  box-shadow: 0 2px 0 rgba(0,0,0,.25); color: #1c2733;
}
.tus:hover { background: var(--mavi-acik); }
.tus:active { transform: translateY(2px); box-shadow: none; }
.tus-ozel { background: #48627c; color: #fff; min-width: 84px; font-size: 14px; }
.tus-bosluk { min-width: 200px; font-size: 14px; }
.tus.aktif { background: var(--sari); color: #1c2733; }
body.klavye-acik { padding-bottom: 300px; }

/* ---- Egzersiz butonları ---- */
.egz-butonlar { display: flex; gap: 16px; flex-wrap: wrap; margin: 20px 0; }
.egz-buton {
  flex: 1; min-width: 240px; text-decoration: none;
  background: linear-gradient(120deg, var(--mavi), var(--mavi-koyu));
  color: #fff; border-radius: 14px; padding: 22px 24px;
  box-shadow: var(--golge); transition: transform .12s;
}
.egz-buton:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(13,94,175,.28); }
.egz-buton .bn-ust { font-size: 22px; font-weight: 700; display: block; margin-bottom: 6px; }
.egz-buton .bn-alt { font-size: 14px; opacity: .9; display: block; line-height: 1.4; }

/* Egzersiz sayfası başlığı */
.egz-sayac { color: var(--gri); font-size: 14px; margin-top: -6px; }

/* ---- İlerleme özeti + sonuç paneli ---- */
.ilerleme-ozet {
  background: var(--mavi-acik); border-radius: 10px; padding: 12px 16px;
  margin: 14px 0; font-size: 14px; color: var(--metin);
}
.ilerleme-sil {
  background: transparent; border: 1px solid var(--gri); color: var(--gri);
  border-radius: 6px; padding: 3px 10px; cursor: pointer; font-size: 12px; margin-left: 8px;
}
.ilerleme-sil:hover { background: #fff; }

.sonuc-panel {
  background: var(--beyaz); border: 1px solid var(--gri-acik);
  border-left: 5px solid var(--mavi); border-radius: 12px;
  padding: 18px 22px; margin: 22px 0; box-shadow: var(--golge);
}
.sonuc-panel h3 { margin-top: 0; }
.sonuc-panel h4 { margin-bottom: 8px; color: var(--mavi-koyu); }
.skor-buyuk { font-size: 34px; font-weight: 800; color: var(--mavi-koyu); }
.skor-buyuk span { font-size: 18px; color: var(--gri); font-weight: 600; }
.kars { font-size: 15px; }
.kars.arti b { color: var(--yesil); }
.kars.eksi b { color: #c0392b; }
.kars.esit b { color: var(--gri); }
.gecmis { display: flex; align-items: flex-end; gap: 6px; margin: 14px 0; flex-wrap: wrap; }
.gecmis-baslik { font-size: 13px; color: var(--gri); align-self: center; }
.gecmis .bar {
  width: 22px; height: 44px; background: var(--gri-acik);
  border-radius: 4px; display: flex; align-items: flex-end; overflow: hidden;
}
.gecmis .bar > span { display: block; width: 100%; background: linear-gradient(180deg, #2ecc71, var(--yesil)); }
.yanlis-liste { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 14px; }
.yanlis-chip {
  background: #fdf3f3; border: 1px solid #f0c9c9; border-radius: 999px;
  padding: 6px 12px; font-size: 15px;
}
.yanlis-chip b { color: var(--mavi-koyu); font-size: 18px; }
.yanlis-chip i { color: var(--gri); font-style: normal; margin-left: 4px; font-size: 13px; }
.yanlis-tekrar {
  background: var(--sari); color: #5a4a00; border: none; border-radius: 8px;
  padding: 10px 18px; cursor: pointer; font-weight: 700;
}
.yanlis-tekrar:hover { filter: brightness(.96); }