:root{
  --yellow:#F6C945; --yellow-light:#FFF4C7; --cream:#FFFDF7; --white:#fff;
  --text:#252525; --text-secondary:#777;
  --green:#3fa66a; --green-bg:#e7f5ec;
  --orange:#e0902f; --orange-bg:#fdf1e2;
  --red:#d1573f; --red-bg:#fbe9e5;
  --border:#eee2b8;
  --shadow:0 10px 30px -18px rgba(0,0,0,.15);
}
*{box-sizing:border-box}
body{margin:0;background:var(--cream);color:var(--text);font-family:'Inter',sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,.font-display{font-family:'Poppins',sans-serif}
a{color:inherit;text-decoration:none}

/* ---- layout: sidebar (desktop) + content + bottom nav (mobile) ---- */
.app-shell{display:flex;min-height:100vh}
.sidebar{
  width:230px;flex-shrink:0;background:var(--white);border-right:1px solid #f1e9c9;
  padding:22px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh
}
.sidebar .brand{font-family:'Poppins',sans-serif;font-weight:700;font-size:.92rem;line-height:1.3;margin:0 0 24px;padding:0 8px}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}
.sidebar nav a{display:flex;align-items:center;gap:10px;padding:10px 10px;border-radius:10px;color:var(--text-secondary);font-size:.92rem;font-weight:500}
.sidebar nav a.active{background:var(--yellow-light);color:var(--text);font-weight:600}
.sidebar nav a:hover{background:#fbf6de}
.sidebar .add-cta{
  margin:14px 0;padding:12px;border-radius:12px;background:var(--yellow);color:var(--text);
  text-align:center;font-weight:700;font-family:'Poppins',sans-serif;font-size:.9rem
}
.sidebar .settings-link{border-top:1px solid #f1e9c9;padding-top:14px;margin-top:8px}

.content{flex:1;min-width:0;padding:26px 30px 90px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}

.mobilenav{
  display:none;position:fixed;bottom:0;left:0;right:0;background:var(--white);
  border-top:1px solid #f1e9c9;padding:8px 6px;justify-content:space-around;align-items:center;z-index:50
}
.mobilenav a{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.68rem;color:var(--text-secondary);padding:4px 8px}
.mobilenav a.active{color:var(--text);font-weight:700}
.mobilenav .fab{
  width:46px;height:46px;border-radius:50%;background:var(--yellow);color:var(--text);
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:700;margin-top:-22px;
  box-shadow:0 8px 18px -6px rgba(246,201,69,.7)
}

@media (max-width:860px){
  .sidebar{display:none}
  .content{padding:18px 16px 90px}
  .mobilenav{display:flex}
}

/* ---- shared components ---- */
.card{background:var(--white);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.grid-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin-bottom:20px}
.stat-card{background:var(--white);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow)}
.stat-card .num{font-family:'Poppins',sans-serif;font-size:1.6rem;font-weight:700}
.stat-card .label{color:var(--text-secondary);font-size:.8rem;margin-top:2px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:10px;
  padding:12px 18px;font-family:'Poppins',sans-serif;font-weight:600;font-size:.9rem;cursor:pointer}
.btn-primary{background:var(--yellow);color:var(--text)}
.btn-secondary{background:var(--yellow-light);color:var(--text)}
.btn-ghost{background:transparent;color:var(--text-secondary);border:1.5px solid #eee}
.btn:disabled{opacity:.55;cursor:default}
.btn-block{width:100%}

.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600}
.badge-guclu{background:var(--green-bg);color:var(--green)}
.badge-gelisiyor{background:var(--yellow-light);color:#a3810f}
.badge-tekrar{background:var(--red-bg);color:var(--red)}
.badge-pasif{background:#f0f0f0;color:var(--text-secondary)}
.badge-aktiflestirilecek{background:var(--orange-bg);color:var(--orange)}
.badge-aktif{background:var(--green-bg);color:var(--green)}

.progress-track{background:var(--yellow-light);border-radius:8px;height:8px;overflow:hidden}
.progress-fill{background:var(--yellow);height:100%;border-radius:8px}

input,select,textarea{
  width:100%;padding:11px 12px;border-radius:10px;border:1.5px solid #eee2b8;
  background:var(--yellow-light);font-size:.95rem;font-family:inherit;color:var(--text)
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--yellow)}
label{display:block;font-size:.8rem;color:var(--text-secondary);margin-bottom:6px;font-weight:600}
.field{margin-bottom:16px}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;padding:12px;border:1.5px solid #f1e9c9;border-radius:10px;margin-bottom:8px;cursor:pointer}
.checkbox-row input{width:auto;margin-top:2px}
.checkbox-row.checked{background:var(--yellow-light);border-color:var(--yellow)}

.word-card{background:var(--white);border-radius:14px;padding:16px;box-shadow:var(--shadow);cursor:pointer}
.word-card .w-title{font-family:'Poppins',sans-serif;font-weight:700;font-size:1.05rem}
.word-card .w-pos{color:var(--text-secondary);font-size:.78rem;margin:2px 0 8px}
.word-card .w-meaning{font-size:.9rem;margin-bottom:8px}
.word-card .w-example{color:var(--text-secondary);font-size:.82rem;font-style:italic;margin-bottom:10px}

.empty-state{text-align:center;padding:50px 20px;color:var(--text-secondary)}

.chip-group{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:8px 14px;border-radius:20px;border:1.5px solid var(--border);font-size:.85rem;cursor:pointer}
.chip.selected{background:var(--yellow);border-color:var(--yellow);font-weight:600}