:root{
    --ink:#17324A;
    --ink-2:#20476A;
    --paper:#F6EFE0;
    --paper-2:#EFE5CF;
    --stamp:#B33A2C;
    --gold:#C79A2E;
    --teal:#2F7A6E;
    --teal-dark:#1E5850;
    --text:#2A241B;
    --text-soft:#5C5140;
    --card:#FFFDF7;
    --line: rgba(23,50,74,0.16);
    --radius: 14px;
  }
  *{box-sizing:border-box;}
  body{
    margin:0;
    font-family:'Nunito',sans-serif;
    background: var(--paper);
    color:var(--text);
    -webkit-font-smoothing:antialiased;
  }
  .app{ max-width:1100px; margin:0 auto; padding:0 0 60px; }
  .cover{
    background: var(--ink);
    background-image: radial-gradient(circle at 15% 20%, rgba(255,255,255,0.05), transparent 40%);
    color: var(--paper);
    padding: 34px 40px 30px;
    border-radius: 0 0 28px 28px;
    position:relative;
    overflow:hidden;
  }
  .cover::after{
    content:"";
    position:absolute;
    right:-40px; top:-40px;
    width:220px; height:220px;
    border:2px solid rgba(199,154,46,0.35);
    border-radius:50%;
  }
  .cover-eyebrow{ font-size:12px; letter-spacing:.14em; text-transform:uppercase; color: var(--gold); font-weight:700; margin:0 0 6px; }
  .cover-title-row{ display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; }
  .level-badge{
    font-family:'Fraunces',serif; font-weight:600; font-size:13px; letter-spacing:.04em;
    color: var(--paper); background: rgba(199,154,46,0.22); border:1px solid var(--gold);
    padding:4px 14px; border-radius:999px; white-space:nowrap;
  }
  .cover-title{ font-family:'Fraunces', serif; font-weight:600; font-size: 34px; margin:0 0 6px; letter-spacing:.01em; }
  .cover-sub{ margin:0; font-size:15px; color: rgba(246,239,224,0.75); max-width:560px; line-height:1.5; }
  .passport-strip{ display:flex; gap:8px; margin-top:22px; flex-wrap:wrap; }
  .stamp-dot{
    width:34px; height:34px; border-radius:50%;
    border:2px solid rgba(246,239,224,0.35);
    display:flex; align-items:center; justify-content:center;
    font-family:'Fraunces',serif; font-size:13px;
    color: rgba(246,239,224,0.55);
    background: rgba(255,255,255,0.02);
    flex-shrink:0;
    transition: transform .2s ease, border-color .2s ease, color .2s ease, background .2s ease;
  }
  .stamp-dot.done{ border-color: var(--gold); color: var(--paper); background: rgba(199,154,46,0.22); }
  .stamp-dot.active{ transform: scale(1.12); border-color:#fff; color:#fff; }
  .toolbar{ display:flex; justify-content:flex-end; padding: 14px 30px 0; }
  .toggle-btn{
    border:1px solid var(--line); background: var(--card); padding:8px 14px; border-radius:999px;
    font-family:'Nunito',sans-serif; font-weight:700; font-size:13px; color: var(--ink); cursor:pointer;
    display:flex; align-items:center; gap:6px;
  }
  .toggle-btn:hover{ background: var(--paper-2); }
  .layout.sidebar-hidden{ grid-template-columns: 1fr; }
  .layout.sidebar-hidden .sidebar{ display:none; }
  .app.presentation-mode .cover{ display:none; }
  .app.presentation-mode .toolbar{ padding-top: 20px; }
  .layout{ display:grid; grid-template-columns: 250px 1fr; gap: 26px; padding: 26px 30px 0; }
  @media (max-width: 760px){
    .layout{ grid-template-columns: 1fr; }
    .cover{ padding:26px 22px 24px; }
    .cover-title{ font-size:26px; }
  }
  .sidebar{ background: var(--paper-2); border-radius: var(--radius); padding: 10px; align-self:start; }
  .week-btn{
    width:100%; text-align:left; border:none; background:transparent;
    padding:11px 12px; border-radius:10px; cursor:pointer;
    display:flex; align-items:center; gap:10px;
    font-family:'Nunito',sans-serif; font-size:13.5px; color: var(--text-soft);
    margin-bottom:2px;
  }
  .week-btn:hover{ background: rgba(23,50,74,0.06); }
  .week-btn.active{ background: var(--card); color: var(--ink); font-weight:700; box-shadow: 0 1px 0 var(--line); }
  .week-num{
    width:24px; height:24px; border-radius:50%; background: var(--ink); color: var(--paper);
    font-size:11px; font-weight:700; display:flex; align-items:center; justify-content:center; flex-shrink:0;
  }
  .week-btn.active .week-num{ background: var(--stamp); }
  .week-check{ margin-left:auto; font-size:14px; color: var(--gold); }
  .main{ min-width:0; }
  .topic-head{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; flex-wrap:wrap; margin-bottom:14px; }
  .topic-de{ font-family:'Fraunces',serif; font-size:26px; font-weight:600; color: var(--ink); margin:0; }
  .topic-tr{ font-size:14px; color: var(--text-soft); margin:2px 0 0; }
  .complete-btn{ border:none; background: var(--teal); color:#fff; font-weight:700; font-size:13px; padding:9px 16px; border-radius:999px; cursor:pointer; }
  .complete-btn.done{ background: var(--gold); }
  .complete-btn:focus-visible, .week-btn:focus-visible, .tab-btn:focus-visible, .choice-btn:focus-visible, .flip-card:focus-visible, .tile:focus-visible, .write-check-btn:focus-visible, .write-input:focus-visible{
    outline: 2px solid var(--teal-dark); outline-offset:2px;
  }
  .week-nav{ display:flex; justify-content:space-between; align-items:stretch; gap:10px; margin-bottom:18px; flex-wrap:wrap; }
  .nav-btn{
    border:1px solid var(--line); background: var(--card); padding:10px 16px; border-radius:12px;
    font-family:'Nunito',sans-serif; font-weight:700; font-size:13px; color: var(--ink); cursor:pointer;
    display:flex; flex-direction:column; align-items:flex-start; gap:2px; flex:1; min-width:150px;
  }
  .nav-btn .nav-label{ font-size:11px; color: var(--text-soft); font-weight:600; text-transform:uppercase; letter-spacing:.04em; }
  .nav-btn .nav-title{ font-size:13.5px; }
  .nav-btn.next{ align-items:flex-end; text-align:right; }
  .nav-btn:disabled{ opacity:.35; cursor:not-allowed; }
  .nav-btn:not(:disabled):hover{ background: var(--paper-2); }
  .tabs{ display:flex; gap:6px; margin-bottom:18px; flex-wrap:wrap; }
  .tab-btn{
    border:1px solid var(--line); background: var(--card); padding:8px 14px; border-radius:999px;
    font-family:'Nunito',sans-serif; font-weight:700; font-size:13px; color: var(--text-soft); cursor:pointer;
  }
  .tab-btn.active{ background: var(--ink); color: var(--paper); border-color: var(--ink); }
  .panel{ background: var(--card); border:1px solid var(--line); border-radius: var(--radius); padding: 22px; }
  .vocab-toolbar{ display:flex; justify-content:flex-end; margin-bottom:14px; }
  .direction-btn{
    border:1px solid var(--line); background: var(--paper-2); padding:8px 14px; border-radius:999px;
    font-family:'Nunito',sans-serif; font-weight:700; font-size:13px; color: var(--ink); cursor:pointer;
  }
  .direction-btn:hover{ background: var(--card); border-color: var(--ink); }
  .vocab-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap:14px; }
  .flip-card{ height:130px; border-radius:12px; cursor:pointer; perspective:800px; border:none; background:none; padding:0; display:block; }
  .flip-inner{ position:relative; width:100%; height:100%; transition: transform .5s; transform-style: preserve-3d; }
  .flip-card.flipped .flip-inner{ transform: rotateY(180deg); }
  .flip-face{ position:absolute; inset:0; border-radius:12px; display:flex; flex-direction:column; align-items:center; justify-content:center; backface-visibility:hidden; padding:10px; text-align:center; }
  .flip-front{ background: var(--paper-2); border:1px solid var(--line); }
  .flip-back{ background: var(--teal); color:#fff; transform: rotateY(180deg); }
  .flip-icon{ font-size:26px; margin-bottom:6px; }
  .flip-word{ font-family:'Fraunces',serif; font-weight:600; font-size:16px; color:var(--ink); }
  .flip-tr{ font-size:14px; font-weight:700; }
  .say-btn{ margin-top:6px; border:none; background: rgba(23,50,74,0.08); color: var(--ink); font-size:12px; padding:4px 10px; border-radius:999px; cursor:pointer; font-weight:700; }
  .flip-back .say-btn{ background: rgba(255,255,255,0.22); color:#fff; }
  .sentence-list{ display:flex; flex-direction:column; gap:10px; }
  .sentence-card{ background: var(--paper-2); border-radius:10px; padding:14px 16px; display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap; }
  .sentence-num{ font-size:12px; font-weight:800; color: var(--gold); margin-right:8px; }
  .sentence-de{ font-family:'Fraunces',serif; font-size:16px; color:var(--ink); font-weight:600;}
  .sentence-tr{ font-size:13px; color:var(--text-soft); margin-top:3px;}
  .quiz-progress{ font-size:13px; color:var(--text-soft); margin-bottom:10px; font-weight:700; }
  .quiz-q{ font-family:'Fraunces',serif; font-size:20px; color:var(--ink); margin:0 0 16px; }
  .choices{ display:grid; grid-template-columns: 1fr 1fr; gap:10px; }
  @media (max-width:520px){ .choices{ grid-template-columns:1fr; } }
  .choice-btn{ border:1px solid var(--line); background: var(--paper-2); padding:12px 14px; border-radius:10px; font-family:'Nunito',sans-serif; font-weight:700; font-size:14px; color: var(--text); cursor:pointer; text-align:left; }
  .choice-btn.correct{ background: #DCEFE2; border-color: var(--teal); color: var(--teal-dark); }
  .choice-btn.wrong{ background: #F6DEDA; border-color: var(--stamp); color: var(--stamp); }
  .quiz-footer{ margin-top:16px; display:flex; align-items:center; gap:12px; }
  .next-btn{ border:none; background: var(--ink); color:var(--paper); font-weight:700; padding:9px 18px; border-radius:999px; cursor:pointer; }
  .quiz-done{ text-align:center; padding:20px 0; }
  .quiz-done .score{ font-family:'Fraunces',serif; font-size:38px; color:var(--stamp); }
  .memory-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:10px; }
  @media (max-width:560px){ .memory-grid{ grid-template-columns: repeat(3,1fr); } }
  .tile{
    aspect-ratio:1; border-radius:10px; border:1px solid var(--line); background: var(--ink); cursor:pointer;
    color:transparent; font-size:12px; font-weight:700; display:flex; align-items:center; justify-content:center; padding:6px; text-align:center;
  }
  .tile.open{ background: var(--paper-2); color: var(--text); }
  .tile.matched{ background: #DCEFE2; color: var(--teal-dark); border-color: var(--teal); cursor:default; }
  .memory-status{ font-size:13px; color:var(--text-soft); margin-bottom:10px; font-weight:700; }
  .gram-intro{ font-size:14.5px; line-height:1.75; color:var(--text); margin:0 0 16px; }
  .gram-block-title{ font-family:'Fraunces',serif; font-size:16px; color:var(--ink); font-weight:600; margin:18px 0 8px; display:flex; align-items:center; gap:8px; }
  .gram-block-title:first-child{ margin-top:0; }
  table.gram-table{ width:100%; border-collapse:collapse; font-size:13.5px; margin-bottom:6px; }
  table.gram-table th, table.gram-table td{ border:1px solid var(--line); padding:8px 10px; text-align:left; }
  table.gram-table thead th{ background: var(--paper-2); color: var(--ink); font-weight:700; }
  table.gram-table tbody tr:nth-child(even){ background: rgba(23,50,74,0.03); }
  .gram-notes{ margin-top:16px; display:flex; flex-direction:column; gap:8px; }
  .gram-note{ display:flex; gap:9px; align-items:flex-start; font-size:13.5px; color:var(--text-soft); line-height:1.5; }
  .gram-note .icon{ flex-shrink:0; font-size:15px; }
  .write-item{ margin-bottom:18px; padding-bottom:16px; border-bottom:1px solid var(--line); }
  .write-item:last-child{ border-bottom:none; margin-bottom:0; padding-bottom:0; }
  .write-num{ font-size:12px; font-weight:800; color: var(--gold); }
  .write-prompt{ font-family:'Fraunces',serif; font-size:16px; color:var(--ink); margin:2px 0 4px; }
  .write-hint{ font-size:12.5px; color:var(--text-soft); margin:0 0 8px; }
  .write-row{ display:flex; gap:10px; align-items:center; flex-wrap:wrap; }
  input.write-input{ border:1px solid var(--line); border-radius:8px; padding:8px 10px; font-size:14px; font-family:'Nunito',sans-serif; min-width:170px; background:var(--paper-2); color:var(--text); }
  .write-check-btn{ border:none; background: var(--teal); color:#fff; font-weight:700; padding:8px 15px; border-radius:999px; cursor:pointer; font-size:13px; }
  .write-feedback{ font-size:13px; font-weight:700; margin-top:8px; }
  .write-feedback.correct{ color: var(--teal-dark); }
  .write-feedback.wrong{ color: var(--stamp); }
  .quiz-explanation{ font-size:13.5px; line-height:1.6; margin:12px 0 0; padding:10px 14px; border-radius:10px; }
  .quiz-explanation.correct{ background:#DCEFE2; color:var(--teal-dark); }
  .quiz-explanation.wrong{ background:#F6DEDA; color:var(--stamp); }
  .quiz-explanation:empty{ display:none; }
  .exercise-subnav{ display:flex; gap:6px; margin-bottom:18px; flex-wrap:wrap; }
  .subnav-btn{
    border:1px solid var(--line); background: var(--paper-2); padding:7px 13px; border-radius:999px;
    font-family:'Nunito',sans-serif; font-weight:700; font-size:12.5px; color: var(--text-soft); cursor:pointer;
  }
  .subnav-btn.active{ background: var(--teal); color:#fff; border-color: var(--teal); }
  .exercise-refresh{ display:flex; justify-content:flex-end; margin-bottom:14px; }
  .exercise-item{ margin-bottom:20px; padding-bottom:18px; border-bottom:1px solid var(--line); }
  .exercise-item:last-child{ border-bottom:none; margin-bottom:0; padding-bottom:0; }
  .chip-row{ display:flex; flex-wrap:wrap; gap:8px; margin:10px 0; }
  .word-chip{
    border:1px solid var(--line); background: var(--paper-2); color: var(--text);
    font-family:'Nunito',sans-serif; font-weight:700; font-size:14px; padding:8px 14px; border-radius:10px;
    cursor:grab; user-select:none;
  }
  .word-chip:hover{ background: var(--card); }
  .word-chip.wrong-pick{ background:#F6DEDA; border-color: var(--stamp); color: var(--stamp); }
  .word-chip.correct-pick{ background:#DCEFE2; border-color: var(--teal); color: var(--teal-dark); }
  .word-chip.locked{ cursor:default; opacity:.85; }
  .arrange-slot{
    min-height:52px; border:2px dashed var(--line); border-radius:12px; background: var(--paper);
    display:flex; flex-wrap:wrap; gap:8px; align-items:center; padding:10px; margin-bottom:10px;
  }
  .arrange-slot.drag-over{ border-color: var(--teal); background: #F0FBF8; }
  .arrange-bank{
    min-height:52px; border-radius:12px; background: var(--paper-2);
    display:flex; flex-wrap:wrap; gap:8px; align-items:center; padding:10px;
  }
  .arrange-bank.drag-over{ background: var(--card); }
  .arrange-placeholder{ font-size:12.5px; color: var(--text-soft); }
  .tf-btn-row{ display:flex; gap:10px; margin-top:10px; }
  .tf-btn{
    border:1px solid var(--line); background: var(--paper-2); padding:9px 20px; border-radius:999px;
    font-family:'Nunito',sans-serif; font-weight:700; font-size:13.5px; color: var(--ink); cursor:pointer;
  }
  .tf-btn.correct{ background:#DCEFE2; border-color: var(--teal); color: var(--teal-dark); }
  .tf-btn.wrong{ background:#F6DEDA; border-color: var(--stamp); color: var(--stamp); }
  .exercise-feedback{ font-size:13px; font-weight:700; margin-top:8px; }
  .exercise-feedback.correct{ color: var(--teal-dark); }
  .exercise-feedback.wrong{ color: var(--stamp); }
  .final-intro{ text-align:center; padding:30px 10px; }
  .final-intro .final-title{ font-family:'Fraunces',serif; font-size:22px; color:var(--ink); margin-bottom:10px; }
  .final-intro p{ color: var(--text-soft); font-size:14px; line-height:1.6; max-width:480px; margin:0 auto 20px; }
  .falle-diff-row{ display:flex; justify-content:center; flex-wrap:wrap; gap:10px; margin-top:6px; }
  .falle-stage{ text-align:center; margin-bottom:16px; }
  .falle-prompt{ font-family:'Fraunces',serif; font-size:30px; font-weight:600; color: var(--ink); margin-top:8px; }
  .falle-track{
    position:relative; height:540px; border:1px solid var(--line); border-radius:16px;
    background: var(--paper-2); overflow:hidden;
  }
  .falle-group{
    position:absolute; left:50%; top:-260px; transform:translateX(-50%);
    display:grid; gap:18px; justify-items:stretch;
    animation-name: falle-drop; animation-timing-function:linear; animation-fill-mode:forwards;
  }
  .falle-group.count-2{ grid-template-columns: repeat(2, 1fr); }
  .falle-group.count-3{ grid-template-columns: repeat(2, 1fr); }
  .falle-group.count-3 .falle-box:nth-child(3){ grid-column: 1 / span 2; justify-self:center; }
  .falle-group.count-4{ grid-template-columns: repeat(2, 1fr); }
  .falle-group.count-n{ display:flex; gap:18px; flex-wrap:wrap; justify-content:center; }
  .falle-box{
    background: var(--card); border:2px solid var(--line); border-radius:16px;
    padding:26px 38px; font-family:'Nunito',sans-serif; font-weight:800; font-size:30px; color: var(--ink);
    cursor:pointer; white-space:nowrap;
  }
  .falle-box.correct{ background:#DCEFE2; border-color: var(--teal); color: var(--teal-dark); }
  .falle-box.wrong{ background:#F6DEDA; border-color: var(--stamp); color: var(--stamp); }
  @keyframes falle-drop{ from{ top:-260px; } to{ top:540px; } }
  @media (prefers-reduced-motion: reduce){ .falle-group{ animation-duration: 0.01s !important; } }
  .sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
  @media (prefers-reduced-motion: reduce){ .flip-inner, .stamp-dot{ transition:none; } }

/* ---- Eklenen: kimlik doğrulama (login/register) sayfaları ---- */
.auth-wrap{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  padding:24px; background: var(--paper);
}
.auth-card{
  width:100%; max-width:380px; background: var(--card); border:1px solid var(--line);
  border-radius: var(--radius); padding:28px 26px; box-shadow: 0 10px 30px rgba(23,50,74,0.08);
}
.auth-title{ font-family:'Fraunces',serif; font-size:24px; color:var(--ink); margin:4px 0 4px; }
.auth-sub{ font-size:13.5px; color:var(--text-soft); margin:0 0 18px; line-height:1.5; }
.auth-error{ background:#F6DEDA; color:var(--stamp); border-radius:10px; padding:10px 12px; font-size:13px; font-weight:700; margin-bottom:14px; }
.form-label{ display:block; font-size:12.5px; font-weight:700; color:var(--ink); margin:12px 0 5px; }
.form-input{
  width:100%; border:1px solid var(--line); border-radius:8px; padding:10px 12px; font-size:14px;
  font-family:'Nunito',sans-serif; background:var(--paper-2); color:var(--text);
}
.auth-btn{
  width:100%; margin-top:20px; border:none; background:var(--teal); color:#fff; font-weight:700;
  font-size:14px; padding:11px 16px; border-radius:999px; cursor:pointer;
}
.auth-btn:hover{ background:var(--teal-dark); }
.auth-foot{ text-align:center; font-size:13px; color:var(--text-soft); margin:18px 0 0; }
.auth-foot a{ color:var(--ink); font-weight:700; }

/* ---- Eklenen: giriş yapılınca üstte görünen kullanıcı çubuğu ---- */
.user-bar{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:8px;
  padding:12px 30px 0;
}
.user-bar-name{ font-size:13.5px; font-weight:700; color:var(--ink); }
.user-bar-links{ display:flex; gap:14px; }
.user-bar-links a{ font-size:13px; font-weight:700; color:var(--teal-dark); text-decoration:none; }
.user-bar-links a:hover{ text-decoration:underline; }

/* ---- Eklenen: yönetim paneli ---- */
.admin-notice{ background:#DCEFE2; color:var(--teal-dark); border-radius:10px; padding:10px 14px; font-size:13px; font-weight:700; margin-bottom:16px; }
table.admin-table{ width:100%; border-collapse:collapse; font-size:13.5px; }
table.admin-table th, table.admin-table td{ border:1px solid var(--line); padding:9px 10px; text-align:left; vertical-align:middle; }
table.admin-table thead th{ background:var(--paper-2); color:var(--ink); font-weight:700; }
table.admin-table tbody tr:nth-child(even){ background: rgba(23,50,74,0.03); }
.admin-actions{ display:flex; gap:6px; flex-wrap:wrap; }
.admin-stamp-dot{ border-color: var(--line); color: var(--text-soft); background: var(--paper-2); }
.admin-stamp-dot.done{ border-color: var(--gold); color: var(--ink); background: rgba(199,154,46,0.18); }

/* ---- Eklenen: hafta içeriği düzenleme formu (tekrarlı satırlar) ---- */
.repeat-grid{ display:grid; gap:8px 10px; margin:10px 0 4px; align-items:center; }
.repeat-grid-2{ grid-template-columns: 1fr 1fr; }
.repeat-grid-3{ grid-template-columns: 1.4fr 1.4fr 0.7fr; }
.repeat-head{ font-size:11.5px; font-weight:800; color:var(--text-soft); text-transform:uppercase; letter-spacing:.03em; }
@media (max-width:640px){
  .repeat-grid-2, .repeat-grid-3{ grid-template-columns: 1fr; }
  .repeat-head{ margin-top:10px; }
  .repeat-head:first-child{ margin-top:0; }
}

/* ---- Eklenen: responsive düzeltmeler ---- */
table.gram-table, table.admin-table{ display:block; overflow-x:auto; -webkit-overflow-scrolling:touch; }
table.gram-table thead, table.gram-table tbody, table.admin-table thead, table.admin-table tbody{ display:table; width:100%; }

@media (max-width:560px){
  .falle-box{ padding:16px 20px; font-size:20px; white-space:normal; text-align:center; word-break:break-word; }
  .falle-track{ height:460px; }
  .falle-prompt{ font-size:24px; }
}
@media (max-width:400px){
  .cover{ padding:20px 16px 20px; }
  .layout{ padding:20px 14px 0; }
  .toolbar{ padding:14px 14px 0; }
  .panel{ padding:16px; }
}