/* ============================================================
   CUSTOMER CONSOLE · KCLASS module css
   ============================================================ */

/* ============ LIVE CLASS ============ */
.kc-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(290px,1fr);gap:14px;height:calc(100vh - 60px - 44px);min-height:470px}
.kc-left{display:flex;flex-direction:column;gap:11px;min-width:0;overflow-y:auto}
.kc-stage{position:relative;border-radius:16px;overflow:hidden;background:#05070b;border:1px solid var(--border);aspect-ratio:16/9;min-height:260px;display:grid;place-items:center}
.kc-stage .cl-strip{border-radius:0}
.kc-off{text-align:center;padding:26px;display:flex;flex-direction:column;gap:9px;align-items:center}
.kc-off .ico{width:56px;height:56px;border-radius:50%;background:rgba(139,92,246,.15);border:1px solid rgba(139,92,246,.4);display:grid;place-items:center;font-size:24px}
.kc-off b{font-size:15.5px;color:#f1f5f9}
.kc-off span{font-size:12px;color:#8b96a8;max-width:380px;line-height:1.55}
.kc-controls{display:flex;gap:9px;align-items:center;flex-wrap:wrap;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:11px 13px}
.kc-ctrl{
  display:flex;gap:7px;align-items:center;font-size:12px;font-weight:700;padding:8px 14px;border-radius:11px;
  background:var(--bg-2);border:1px solid var(--border);color:var(--text-2);cursor:pointer;transition:.14s;user-select:none;
}
.kc-ctrl:hover{border-color:var(--border-2);transform:translateY(-1px)}
.kc-ctrl.on{background:rgba(16,185,129,.13);border-color:rgba(16,185,129,.4);color:var(--green-2)}
.kc-ctrl.off{background:rgba(239,68,68,.12);border-color:rgba(239,68,68,.35);color:var(--red-2)}
.kc-ctrl.gold{background:rgba(240,180,41,.13);border-color:rgba(240,180,41,.45);color:var(--gold)}
.kc-ctrl.danger{background:rgba(239,68,68,.13);border-color:rgba(239,68,68,.4);color:#f87171}
.kc-ctrl .lb{margin-left:auto;font-size:10px;color:var(--dim);font-weight:600}
.kc-right{background:var(--panel);border:1px solid var(--border);border-radius:16px;display:flex;flex-direction:column;overflow:hidden;min-width:0}
.kc-tabs{display:flex;border-bottom:1px solid var(--border)}
.kc-tabs .t{flex:1;text-align:center;font-size:11.5px;font-weight:750;padding:11px 6px;cursor:pointer;color:var(--muted);transition:.13s;position:relative}
.kc-tabs .t.on{color:var(--gold)}
.kc-tabs .t.on::after{content:'';position:absolute;left:18%;right:18%;bottom:-1px;height:2px;background:var(--gold);border-radius:2px}
.kc-panel{flex:1;overflow-y:auto;padding:13px;display:flex;flex-direction:column;gap:9px;min-height:0}
.kc-chat-in{display:flex;gap:8px;padding:11px 13px;border-top:1px solid var(--border);background:var(--bg-2)}
.kc-chat-in .input{flex:1;min-width:0}
.kc-quiz-card{background:linear-gradient(160deg,rgba(240,180,41,.1),var(--panel-2));border:1px solid rgba(240,180,41,.4);border-radius:14px;padding:14px}
.kc-quiz-card .tag{font-size:9.5px;font-weight:900;letter-spacing:.13em;color:var(--gold)}
.kc-quiz-card .q{font-size:14px;font-weight:750;margin:7px 0 11px;line-height:1.45}
.kc-qo{
  position:relative;display:flex;justify-content:space-between;gap:10px;align-items:center;margin:6px 0;padding:9px 12px;
  border-radius:10px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);cursor:pointer;transition:.14s;overflow:hidden;
}
.kc-qo:hover{border-color:rgba(240,180,41,.5);transform:translateX(2px)}
.kc-qo i{position:absolute;left:0;top:0;bottom:0;width:0;background:rgba(240,180,41,.2);transition:width .6s cubic-bezier(.2,.8,.3,1);z-index:0}
.kc-qo span,.kc-qo b{position:relative;z-index:1}
.kc-qo span{font-size:13px;color:#f1f5f9}
.kc-qo b{font-size:11px;font-weight:800;color:#f8fafc;flex:none}
.kc-qo.mine{border-color:var(--gold)}
.kc-qo.correct i{background:rgba(16,185,129,.3)}
.kc-qo.correct{border-color:rgba(16,185,129,.55)}
.kc-qo.dim{opacity:.55;pointer-events:none}
.kc-quiz-foot{display:flex;justify-content:space-between;font-size:10.5px;color:#94a3b8;margin-top:10px}
.kc-empty{padding:26px 12px;text-align:center;color:var(--dim);font-size:12.5px;line-height:1.6}
.kc-next{display:flex;gap:11px;align-items:center;background:var(--panel);border:1px solid var(--border);border-radius:13px;padding:12px 13px;margin-bottom:9px}
.kc-next .ap-when{width:58px}
.kc-next .grow{flex:1;min-width:0}
.kc-next .grow b{display:block;font-size:13px}
.kc-next .grow span{font-size:11px;color:var(--dim)}
#cuMyCam{position:absolute;right:12px;bottom:64px;width:132px;aspect-ratio:16/10;border-radius:10px;object-fit:cover;border:2px solid var(--gold);z-index:5;background:#10151d;display:none;box-shadow:0 8px 24px rgba(0,0,0,.5)}