:root{
  --paper:#F5F1E8;
  --paper-dark:#EDE6D6;
  --ink:#1E2A3A;
  --ink-soft:#4A5568;
  --teal:#2F5D56;
  --teal-dark:#1F3F3A;
  --amber:#C08A2E;
  --stamp:#A8442F;
  --line:#D8CFBC;
  --card:#FFFDF8;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--paper);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px);
  background-size: 100% 2.1em;
  color:var(--ink);
  font-family:'Work Sans', sans-serif;
  min-height:100vh;
  padding:24px 16px 60px;
}
.wrap{ max-width:520px; margin:0 auto; }

header{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  margin-bottom:18px;
  border-bottom:2px solid var(--ink);
  padding-bottom:10px;
}
h1{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:1.6rem;
  margin:0;
  letter-spacing:-0.01em;
}
.stats{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  color:var(--ink-soft);
  text-align:right;
  line-height:1.5;
}
.stats b{ color:var(--teal-dark); font-size:0.85rem; }

/* Flashcard - index card look */
.stage{
  position:relative;
  margin:22px 0 16px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:4px;
  box-shadow: 3px 4px 0 rgba(30,42,58,0.08), 0 1px 3px rgba(0,0,0,0.06);
  padding:38px 26px 30px;
  min-height:180px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  cursor:pointer;
  position:relative;
  overflow:hidden;
}
.card::before{
  content:'';
  position:absolute;
  top:0; left:0; right:0;
  height:26px;
  background:repeating-linear-gradient(90deg, transparent, transparent 6px, var(--line) 6px, var(--line) 7px);
  opacity:0.5;
}
.stamp{
  position:absolute;
  top:10px; right:12px;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.62rem;
  color:var(--stamp);
  border:1.5px solid var(--stamp);
  border-radius:50%;
  width:40px; height:40px;
  display:flex; align-items:center; justify-content:center;
  transform:rotate(9deg);
  opacity:0.75;
  text-align:center;
  line-height:1.1;
}
.side-label{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.62rem;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:10px;
}
.term{
  font-family:'Fraunces', serif;
  font-size:1.85rem;
  font-weight:500;
  color:var(--ink);
  line-height:1.25;
}
.example{
  margin-top:14px;
  font-size:0.85rem;
  font-style:italic;
  color:var(--ink-soft);
  max-width:340px;
}
.flip-hint{
  margin-top:16px;
  font-size:0.7rem;
  color:var(--ink-soft);
  opacity:0.6;
}
.speak-btn{
  position:absolute;
  top:10px; left:12px;
  width:34px; height:34px;
  border-radius:50%;
  border:1.5px solid var(--teal);
  background:var(--card);
  color:var(--teal-dark);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  font-size:1rem;
  z-index:2;
}
.speak-btn:active{ transform:scale(0.94); }
.speak-btn.playing{ background:var(--teal); color:var(--card); }
.empty-state{
  font-family:'Fraunces', serif;
  font-style:italic;
  color:var(--ink-soft);
  font-size:1rem;
  padding:20px;
}

.review-actions{
  display:flex;
  gap:10px;
  margin-top:14px;
}
.review-actions button, .confirm-actions button{
  flex:1;
  padding:12px 8px;
  border-radius:3px;
  border:1px solid var(--ink);
  background:var(--card);
  font-family:'Work Sans',sans-serif;
  font-weight:500;
  font-size:0.85rem;
  cursor:pointer;
}
.btn-no{ color:var(--stamp); border-color:var(--stamp); }
.btn-yes{ color:var(--teal-dark); border-color:var(--teal); background:#EAF1EC; }
.review-actions button:active, .confirm-actions button:active{ transform:translateY(1px); }

/* Bestaetigungs-Dialog (z.B. vor dem Loeschen eines Worts) */
.confirm-overlay{
  position:fixed;
  inset:0;
  z-index:40;
  background:rgba(30,42,58,0.45);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:20px;
}
.confirm-box{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:4px;
  box-shadow: 3px 4px 0 rgba(30,42,58,0.15), 0 1px 3px rgba(0,0,0,0.1);
  padding:22px 20px;
  max-width:320px;
  width:100%;
  text-align:center;
}
.confirm-text{
  font-family:'Fraunces', serif;
  font-size:1.02rem;
  color:var(--ink);
  margin-bottom:18px;
}
.confirm-actions{
  display:flex;
  gap:10px;
}

.skip-row{
  display:flex;
  justify-content:center;
  margin-top:8px;
}
.skip-row button{
  background:none; border:none;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.7rem;
  color:var(--ink-soft);
  text-decoration:underline;
  cursor:pointer;
  padding:6px;
}

/* Add form */
.add-block{
  margin-top:30px;
  border-top:1px dashed var(--line);
  padding-top:20px;
}
.add-title{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.68rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--teal-dark);
  margin-bottom:10px;
}
.add-form{
  display:flex;
  flex-direction:column;
  gap:8px;
}
.row2{ display:flex; gap:8px; }
input{
  font-family:'Work Sans', sans-serif;
  font-size:0.9rem;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:3px;
  background:var(--card);
  color:var(--ink);
  flex:1;
  min-width:0;
}
input:focus{ outline:2px solid var(--teal); outline-offset:1px; }
.add-form button{
  padding:11px;
  border-radius:3px;
  border:1px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  font-family:'Work Sans', sans-serif;
  font-weight:500;
  font-size:0.88rem;
  cursor:pointer;
}
.add-form button:active{ transform:translateY(1px); }
.msg{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  color:var(--teal-dark);
  min-height:1em;
}

/* Word list */
.list-block{ margin-top:28px; }
.list-title{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.68rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--teal-dark);
  margin-bottom:10px;
  display:flex;
  justify-content:space-between;
}
.word-rows{ display:flex; flex-direction:column; }
.word-row{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  padding:9px 2px;
  border-bottom:1px solid var(--line);
  font-size:0.86rem;
  gap:10px;
}
.word-row .de{ font-weight:500; }
.word-row .tr{ color:var(--ink-soft); text-align:right; }
.word-row .del{
  background:none;border:none;color:var(--stamp);
  font-size:0.75rem; cursor:pointer; opacity:0.55; flex-shrink:0;
}
.mini-speak{
  background:none;border:none;
  font-size:0.85rem; cursor:pointer; opacity:0.7; flex-shrink:0;
  padding:2px 4px;
}
.row-left{ flex:1; min-width:0; }
.row-mid{ flex:1; min-width:0; }

.loading{ text-align:center; padding:40px; font-family:'IBM Plex Mono', monospace; font-size:0.75rem; color:var(--ink-soft); }

/* Wörterbuch (Sözlük) */
.sozluk-btn{
  width:100%;
  padding:14px;
  border-radius:4px;
  border:1px dashed var(--line);
  background:var(--card);
  color:var(--teal-dark);
  font-family:'Work Sans', sans-serif;
  font-weight:500;
  font-size:0.92rem;
  cursor:pointer;
}
.sozluk-btn:active{ transform:translateY(1px); }

.sozluk-overlay{
  position:fixed;
  inset:0;
  background:var(--paper);
  z-index:20;
  display:flex;
  flex-direction:column;
}
.sozluk-overlay.hide{ display:none; }

.sozluk-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:16px 20px;
  background:var(--ink);
  color:var(--paper);
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:1.2rem;
  flex-shrink:0;
}
.sozluk-close{
  background:none; border:none; color:var(--paper);
  font-size:1.1rem; cursor:pointer; opacity:0.85;
}

.sozluk-content{
  flex:1;
  overflow-y:auto;
  padding:0 20px 40px;
  max-width:520px;
  margin:0 auto;
  width:100%;
  box-sizing:border-box;
}
.sozluk-buchstabe{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:1.4rem;
  color:var(--amber);
  border-bottom:2px solid var(--ink);
  padding:16px 2px 5px;
  position:sticky;
  top:0;
  background:var(--paper);
}

/* Tutor-Chat */
.chat-toggle{
  position:fixed;
  right:20px; bottom:20px;
  width:52px; height:52px;
  border-radius:50%;
  border:none;
  background:var(--teal-dark);
  color:var(--card);
  font-size:1.3rem;
  box-shadow:0 3px 10px rgba(0,0,0,0.25);
  cursor:pointer;
  z-index:10;
}
.chat-toggle:active{ transform:scale(0.95); }

.chat-panel{
  position:fixed;
  right:16px; bottom:84px; left:16px;
  max-width:488px;
  margin:0 auto;
  max-height:70vh;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:8px;
  box-shadow:0 6px 24px rgba(0,0,0,0.22);
  display:flex;
  flex-direction:column;
  overflow:hidden;
  z-index:10;
}
.chat-panel.hide{ display:none; }

.chat-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:12px 14px;
  background:var(--ink);
  color:var(--paper);
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:1rem;
}
.chat-close{
  background:none; border:none; color:var(--paper);
  font-size:1rem; cursor:pointer; opacity:0.8;
}

.chat-messages{
  flex:1;
  overflow-y:auto;
  padding:12px 14px;
  display:flex;
  flex-direction:column;
  gap:10px;
  min-height:160px;
}
.chat-msg{
  font-family:'Work Sans', sans-serif;
  font-size:0.88rem;
  line-height:1.4;
  padding:9px 12px;
  border-radius:8px;
  max-width:85%;
  white-space:pre-wrap;
}
.chat-msg.du{
  align-self:flex-end;
  background:var(--teal);
  color:var(--card);
  border-bottom-right-radius:2px;
}
.chat-msg.ogretmen{
  align-self:flex-start;
  background:var(--paper-dark);
  color:var(--ink);
  border-bottom-left-radius:2px;
}
.chat-msg.yukleniyor{
  align-self:flex-start;
  color:var(--ink-soft);
  font-style:italic;
  font-size:0.8rem;
}

.chat-input-row{
  display:flex;
  gap:8px;
  padding:10px 14px;
  border-top:1px solid var(--line);
}
.chat-input-row input{ flex:1; }
.chat-input-row button{
  padding:10px 14px;
  border-radius:3px;
  border:1px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  font-family:'Work Sans', sans-serif;
  font-weight:500;
  font-size:0.85rem;
  cursor:pointer;
}