:root{
  --bg: #1f2126;
  --panel: #262a33;
  --panel-2: #2b303a;
  --text: #e8ebf2;
  --muted: #bac1cf;
  --border: #3a3f4a;
  --dash: #4b5563;
  --accent: #60a5fa;
  --accent-2: #93c5fd;
  --accent-contrast: #0b1220;
  --ok: #22c55e;
  --err: #ef4444;
  --shadow: 0 8px 16px rgba(0,0,0,.32);
}

*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:var(--bg);color:var(--text)}
:focus{outline:2px solid rgba(96,165,250,.35); outline-offset:3px}

.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 12px;position:sticky;top:0;
  background:rgba(12,14,18,.35);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--border);
  z-index:10
}
.brand{display:flex;align-items:center;gap:8px}
.brand .dot{width:8px;height:8px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 3px rgba(96,165,250,.22)}
.topbar h1{font-size:.9rem;margin:0;color:var(--text)}
.actions{display:flex;gap:6px;align-items:center}
.btn{
  background:var(--accent);border:1px solid #3a6fdc;
  color:var(--accent-contrast);
  padding:6px 10px;border-radius:10px;cursor:pointer;font-weight:700;letter-spacing:.2px;
  box-shadow:var(--shadow);font-size:.9rem
}
.btn:hover{filter:brightness(1.06)}
.btn.ghost{
  background:transparent;border:1px solid var(--border);color:var(--text);
  box-shadow:none;
}
.btn:disabled{opacity:.6;cursor:not-allowed}
.tries{margin-right:4px;color:var(--muted);font-weight:700;font-size:.9rem}

.layout{
  display:grid;grid-template-columns:260px 1fr;gap:12px;
  padding:12px;min-height:calc(100vh - 48px);height:calc(100vh - 48px);
  max-width: 1600px;margin:0 auto;
}
.tray{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:10px;box-shadow:var(--shadow);overflow:auto
}
.tray h2{margin:0 0 6px;font-size:.95rem;color:var(--accent-2)}
.tray-list{display:flex;flex-direction:column;gap:8px;min-height:100px}
.hint{color:var(--muted);font-size:.85rem;margin-top:6px}

.phrase{
  background:var(--panel-2);border:1px solid var(--border);border-radius:10px;
  padding:8px 10px;cursor:grab;user-select:none;
  box-shadow:0 1px 1px rgba(0,0,0,.25)
}
.phrase:active{cursor:grabbing}
.phrase.locked{background:rgba(34,197,94,.12);border-color:rgba(34,197,94,.45);box-shadow:inset 0 0 0 2px rgba(34,197,94,.22);cursor:default}
.phrase .label{pointer-events:none;font-size:.95rem;line-height:1.22;font-weight:600;letter-spacing:.01em;text-align:left;color:var(--text)}

.board-wrap{position:relative;overflow:hidden}
.board{
  display:grid;grid-template-columns:repeat(2, minmax(240px, 1fr));gap:8px;padding:4px;
  overflow:auto;max-height:100%
}
.col-header{
  background:transparent;border:0;padding:2px 4px;font-weight:800;color:var(--muted);
  font-size:.95rem;text-align:center;letter-spacing:.2px
}
.target{
  position:relative;background:var(--panel);border:2px dashed var(--dash);border-radius:12px;
  min-height:48px;padding:6px;display:flex;flex-direction:column;gap:4px;align-items:stretch;justify-content:flex-start;
  transition:box-shadow .15s,border-color .15s
}
.target:hover{box-shadow:0 0 0 2px rgba(96,165,250,.25)}
.target.locked{border-color:rgba(34,197,94,.55);background:rgba(34,197,94,.08)}
.target-header{display:flex;align-items:center;gap:6px;color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:999px;
  background:#4f8cff;color:#0b1220;font-weight:900;font-size:.8rem;flex:0 0 auto
}
.target .slot{min-height:28px;display:flex;align-items:center;justify-content:center}

.hintlabel{opacity:.8;transition:opacity .2s}
.hintlabel.hidden{opacity:0;visibility:hidden}

.slot .phrase{margin:0;width:100%}

.feedback{margin-top:6px;min-height:22px;color:var(--text);font-size:.9rem}
.ok{color:var(--ok)}
.err{color:var(--err)}

.dragging{opacity:.95;position:fixed;z-index:1000;pointer-events:none;transform:translate(-50%,-50%);filter:drop-shadow(0 8px 16px rgba(0,0,0,.45))}
.returning{animation:popout .18s ease}
.placeholder{background:transparent;border:2px dashed transparent;border-radius:12px;min-height:48px}

@keyframes popout{from{transform:scale(.96)}to{transform:scale(1)}}

/* Breakpoint: rester en 2 colonnes + tray à gauche jusqu'à 600px */
@media (max-width: 600px){
  .layout{grid-template-columns:1fr}
  .board{grid-template-columns:1fr}
}