:root{
  --bg:#F6F7FB;
  --primary:#4255FF;
  --card:#FFFFFF;
  --text:#1F2A44;
  --muted:#6B7280;
  --border:#E6E8F2;
  --shadow: 0 10px 30px rgba(17,24,39,.08);
  --radius: 16px;
  --radius2: 22px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: var(--text);
  background: var(--bg);
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.muted{color:var(--muted)}
.small{font-size:12px}

.topbar{
  position:sticky; top:0; z-index:50;
  height:64px; display:flex; align-items:center; justify-content:space-between;
  padding:0 16px; background:rgba(246,247,251,.9); backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.topbar-left{display:flex;gap:12px;align-items:center}
.icon-btn{
  border:0;background:transparent;cursor:pointer;
  padding:10px;border-radius:12px;
}
.icon-btn:hover{background:rgba(66,85,255,.08)}
.icon-circle{
  width:42px;height:42px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-weight:700;
  box-shadow: 0 10px 18px rgba(66,85,255,.25);
}
.pill-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
}
.pill-btn:hover{border-color:#D9DCFF}
.logo{display:flex;gap:10px;align-items:center}
.logo-badge{width:28px;height:28px;border-radius:10px;background:var(--primary);box-shadow:0 10px 18px rgba(66,85,255,.25)}
.logo-text{font-weight:800;letter-spacing:.2px}

.search{
  flex:1; max-width:720px;
  display:flex; align-items:center; gap:10px;
  padding:10px 14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:999px;
  margin:0 16px;
}
.search input{border:0;outline:none;width:100%;background:transparent}
.topbar-right{display:flex;gap:10px;align-items:center}

.sidebar{
  position:fixed; left:0; top:64px; bottom:0;
  width:260px; background:#fff;
  border-right:1px solid var(--border);
  padding:14px;
  overflow:auto;
}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:14px;
  color:#374151;
}
.side-item:hover{background:rgba(66,85,255,.08)}
.side-item.active{background:rgba(66,85,255,.12); color:#1F2A44; font-weight:700}
.side-ico{width:26px;display:flex;justify-content:center}
.side-divider{height:1px;background:var(--border);margin:10px 0}
.side-title{padding:10px 12px; font-size:12px; color:var(--muted); text-transform:uppercase; letter-spacing:.12em}

.overlay{display:none;position:fixed;inset:0;background:rgba(17,24,39,.25);z-index:40}
.main{margin-left:260px; padding:18px}
.page{max-width:1040px;margin:0 auto}

.page-header{display:flex;flex-direction:column;gap:6px;margin:18px 0}
h1{margin:0;font-size:34px;letter-spacing:-.02em}
h2{margin:0;font-size:18px}
.tabs{display:flex;gap:18px;flex-wrap:wrap;margin-top:12px;border-bottom:1px solid var(--border)}
.tab{padding:12px 2px;color:var(--muted);border-bottom:3px solid transparent}
.tab.on{color:var(--text);border-bottom-color:var(--primary);font-weight:700}

.grid-head{display:flex;align-items:center;justify-content:space-between;margin:18px 0}
.mini-search{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:14px;background:#fff;border:1px solid var(--border);
}
.mini-search input{border:0;outline:none;background:transparent;width:220px}

.set-list{display:flex;flex-direction:column;gap:12px}
.set-card{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--border);border-radius:18px;
  padding:14px 16px;
  box-shadow: 0 12px 24px rgba(17,24,39,.04);
}
.set-card:hover{border-color:#D9DCFF; transform: translateY(-1px)}
.set-badge{
  width:48px;height:48px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.set-title{font-weight:800}
.set-sub{color:var(--muted);font-size:13px;margin-top:3px}
.dot{margin:0 6px;color:#c2c6d6}
.set-actions{margin-left:auto;color:var(--muted);font-size:22px}

.empty{
  background:#fff;border:1px dashed #D9DCFF;border-radius:22px;
  padding:28px;text-align:center;margin-top:22px
}
.empty-title{font-weight:800;font-size:18px}
.empty-sub{color:var(--muted);margin:8px 0 16px}
.btn{
  background:var(--primary); color:#fff; border:0;
  padding:12px 16px; border-radius:14px; cursor:pointer;
  box-shadow: 0 10px 18px rgba(66,85,255,.25);
}
.btn:hover{filter:brightness(.98)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.w100{width:100%}

.ghost{
  background:#fff;border:1px solid var(--border);
  padding:10px 14px;border-radius:14px;cursor:pointer;
}
.ghost:hover{border-color:#D9DCFF}

.panel{
  background:#fff;border:1px solid var(--border);
  border-radius:22px;padding:16px;box-shadow: var(--shadow);
  margin-top:18px;
}
.panel-title{font-weight:800;margin-bottom:12px}

.set-head{display:flex;justify-content:space-between;align-items:flex-start;margin:8px 0 12px}
.set-head-sub{color:var(--muted);margin-top:6px}
.mode-tabs{display:flex;gap:12px;margin:8px 0 14px;flex-wrap:wrap}
.mode-tab{
  background:#fff;border:1px solid var(--border);
  padding:10px 14px;border-radius:14px;color:#374151;
}
.mode-tab.on{border-color:#D9DCFF; box-shadow:0 10px 18px rgba(17,24,39,.06); font-weight:800}

.player{
  background:#fff;border:1px solid var(--border);border-radius:22px;padding:16px;
  box-shadow: var(--shadow);
}
.player-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.player-actions{display:flex;gap:6px}
.flashcard{
  height:340px;border-radius:22px;background:#fff; border:1px solid var(--border);
  box-shadow: 0 16px 34px rgba(17,24,39,.08);
  display:flex;align-items:center;justify-content:center;
  perspective: 1200px;
  user-select:none;
}
.flash-inner{
  width:100%;height:100%;position:relative;
  transform-style:preserve-3d;
  transition: transform .55s cubic-bezier(.2,.8,.2,1);
}
.flash-inner.flipped{transform: rotateY(180deg)}
.flash-face{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  padding:18px;text-align:center;
  backface-visibility:hidden;
}
.flash-front{font-size:46px;font-weight:300}
.flash-back{font-size:36px;font-weight:400;transform: rotateY(180deg)}
.flash-back[dir="rtl"]{font-family: ui-serif, "Noto Naskh Arabic", "Amiri", serif}

.player-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:12px;gap:10px;flex-wrap:wrap}
.toggle{display:flex;align-items:center;gap:10px;color:var(--muted)}
.nav{display:flex;align-items:center;gap:10px}
.nav-btn{
  width:46px;height:46px;border-radius:999px;border:1px solid var(--border);
  background:#fff;cursor:pointer;
}
.nav-btn:hover{border-color:#D9DCFF}
.nav-mid{padding:0 10px;color:var(--muted)}
.player-mini{display:flex;gap:10px}

.terms{margin-top:18px}
.terms-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.term-list{display:flex;flex-direction:column}
.term-row{
  display:grid;grid-template-columns: 1fr 1fr auto;
  gap:12px;align-items:center;
  padding:14px 12px;border-top:1px solid var(--border);
}
.term-row:first-child{border-top:0}
.term-col{min-width:0}
.term-text{font-size:16px}
.term-text.fa{font-family: ui-serif, "Noto Naskh Arabic", "Amiri", serif}
.term-actions{display:flex;gap:8px;align-items:center}
.term-star.on{color: var(--primary)}

.learn, .test{margin-top:10px}
.learn-card,.test-card{
  background:#fff;border:1px solid var(--border);
  border-radius:22px;padding:16px;box-shadow: var(--shadow);
}
.learn-top,.test-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.learn-prompt{font-size:28px;font-weight:400;min-height:88px;display:flex;align-items:center}
.learn-choices{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:10px}
.choice{
  border:1px solid var(--border);background:#fff;border-radius:16px;
  padding:14px;cursor:pointer;text-align:left;
}
.choice:hover{border-color:#D9DCFF}
.choice.correct{border-color:#22C55E;background:rgba(34,197,94,.08)}
.choice.wrong{border-color:#EF4444;background:rgba(239,68,68,.08)}
.learn-bottom,.test-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:12px;gap:12px;flex-wrap:wrap}
.pill{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--muted)}

.test-q-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.12em}
.test-q-text{font-size:28px;margin-top:8px}
.test-choices{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.test-opt{display:flex;gap:10px;align-items:center}
.badge-num{width:26px;height:26px;border-radius:999px;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px}

.match{margin-top:10px}
.match-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.match-title{font-weight:900;font-size:18px}
.match-timer{font-weight:900;font-size:18px}
.match-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:14px}
.match-tile{
  background:#fff;border:1px solid var(--border);border-radius:18px;
  padding:18px;cursor:pointer;text-align:center;
  box-shadow: 0 10px 18px rgba(17,24,39,.04);
  min-height:74px;display:flex;align-items:center;justify-content:center;
  font-size:22px;
}
.match-tile[dir="rtl"]{font-family: ui-serif, "Noto Naskh Arabic", "Amiri", serif}
.match-tile.sel{border-color:var(--primary); box-shadow:0 18px 30px rgba(66,85,255,.18)}
.match-tile.gone{opacity:.15; pointer-events:none}

.cards-2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:12px}
.stat-card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:16px;box-shadow:var(--shadow)}
.stat-title{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.12em}
.stat-big{font-weight:900;font-size:34px;margin-top:8px}
.stat-sub{color:var(--muted);margin-top:6px}

.table{display:flex;flex-direction:column}
.trow{display:grid;grid-template-columns: 1fr 110px 70px 70px;gap:10px;padding:10px 0;border-top:1px solid var(--border);font-size:14px}
.thead{color:var(--muted);font-size:12px;border-top:0;text-transform:uppercase;letter-spacing:.12em}

.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.auth-card{width:380px;max-width:95vw;background:#fff;border:1px solid var(--border);border-radius:22px;padding:18px;box-shadow:var(--shadow)}
.auth-title{font-weight:900;font-size:20px;margin-bottom:12px}
.label{display:block;margin:10px 0 6px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.12em}
.input{width:100%;border:1px solid var(--border);border-radius:14px;padding:12px 12px;outline:none;background:#fff}
.input:focus{border-color:#D9DCFF; box-shadow:0 0 0 4px rgba(66,85,255,.12)}
.form{background:#fff;border:1px solid var(--border);border-radius:22px;padding:16px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 220px;gap:12px}
.col{min-width:0}
.form-actions{margin-top:12px}
.admin-head{display:flex;align-items:flex-start;justify-content:space-between;margin:8px 0 12px;gap:10px;flex-wrap:wrap}
.admin-actions{display:flex;gap:10px;flex-wrap:wrap}
.error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.35);padding:12px 14px;border-radius:14px;margin:12px 0}
.success{background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.35);padding:12px 14px;border-radius:14px;margin:12px 0}

@media (max-width: 980px){
  .main{margin-left:0}
  .sidebar{transform: translateX(-110%); transition: transform .25s ease; z-index:45; top:64px}
  .sidebar.open{transform: translateX(0)}
  .overlay.show{display:block}
  .search{display:none}
}
@media (max-width: 640px){
  h1{font-size:26px}
  .flashcard{height:280px}
  .flash-front{font-size:34px}
  .flash-back{font-size:28px}
  .learn-choices, .test-choices{grid-template-columns:1fr}
  .match-grid{grid-template-columns:repeat(2,1fr)}
  .form-row{grid-template-columns:1fr}
}


.test-settings .field{display:flex; flex-direction:column; gap:.45rem}
.test-settings .chk{display:flex; align-items:center; gap:.5rem; margin:.25rem 0}
.test-settings input, .test-settings select{padding:10px 12px; border-radius:12px; border:1px solid rgba(255,255,255,.14); background:rgba(255,255,255,.06); color:inherit}

.term-sel.on{background:rgba(255,255,255,.14); border-color:rgba(255,255,255,.22)}
.test-result-actions{display:flex; gap:.6rem; flex-wrap:wrap}


.pill-btn.danger{border-color:#ffb3b3;color:#b30000;background:#fff5f5}
.pill-btn.danger:hover{background:#ffecec}
.term-row.selected{outline:2px solid var(--primary);background:rgba(66,85,255,.06)}
.term-row .term-sel.on{color:var(--primary)}

/* Test - yanlışta doğru cevabı göster */
.test-feedback{
  margin-top:14px;
  padding:12px 14px;
  border:1px solid var(--border);
  border-radius:16px;
  background:#fff;
  box-shadow: var(--shadow);
}
.test-feedback .tf-title{font-weight:900;margin-bottom:6px}
.test-feedback .tf-answer{font-weight:800;opacity:.95}

/* Genel küçük uyarı kutusu (yazılı testte kullanılır) */
.alert{
  padding:12px 14px;
  border:1px solid var(--border);
  border-radius:16px;
  background:#fff;
  box-shadow: var(--shadow);
}