/* === NOVA: Matchmaking (Düello Ara) Skin — lightweight, GPU-friendly === */
.matchmaking-screen.nova-duel-arena{
  position:fixed; inset:0; display:none; /* shown via JS */
  align-items:center; justify-content:center;
  padding: clamp(12px, 2vw, 24px);
  z-index: 100000; /* above everything */
  /* background comes from .nova-duel-arena */
}
.matchmaking-screen.nova-duel-arena .matchmaking-content{
  position:relative; z-index:8;
  width:min(920px, 96vw);
  border-radius: 18px;
  border:1.5px solid rgba(0,200,255,.35);
  background: rgba(8,18,40,.86);
  box-shadow: inset 0 0 24px rgba(0,200,255,.18), 0 10px 40px rgba(0,0,0,.45);
  backdrop-filter: blur(6px);
  padding: clamp(18px, 2.5vw, 28px);
  animation: novaMMCardIn .35s ease-out;
}
@keyframes novaMMCardIn{ from{ transform: translateY(10px); opacity:.0 } to{ transform:none; opacity:1 } }

/* Title */
.matchmaking-screen.nova-duel-arena .matchmaking-content h2{
  margin: 0 0 10px 0;
  font-weight: 900;
  letter-spacing:.5px;
  color:#e9f4ff;
  text-shadow: 0 0 12px rgba(0,200,255,.28);
}

/* Otomatik eşleştirme — bekleme kartı */
.nova-auto-match-shell{
  position: relative;
  overflow: hidden;
  text-align: center;
}
.auto-match-ambient{
  position: absolute;
  inset: -40%;
  pointer-events: none;
  opacity: .45;
  background:
    radial-gradient(40% 35% at 20% 25%, rgba(168,85,247,.22), transparent 55%),
    radial-gradient(45% 40% at 85% 70%, rgba(34,211,238,.18), transparent 52%),
    radial-gradient(30% 28% at 50% 100%, rgba(251,191,36,.08), transparent 50%);
  animation: novaStoreOrbDrift 18s ease-in-out infinite alternate;
}
.auto-match-hero{
  position: relative;
  z-index: 1;
  padding: clamp(8px, 2vw, 16px) 0 clamp(4px, 1.5vw, 12px);
}
.auto-match-pulse-ring{
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
  width: min(200px, 52vw);
  height: min(200px, 52vw);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, rgba(34,211,238,.12), transparent 65%);
  box-shadow: 0 0 0 1px rgba(34,211,238,.2) inset, 0 0 48px rgba(34,211,238,.15);
  animation: autoMatchRingPulse 2.8s ease-in-out infinite;
}
@keyframes autoMatchRingPulse{
  0%, 100%{ transform: scale(1); opacity: 1; }
  50%{ transform: scale(1.03); opacity: .92; }
}
.auto-match-icon-wrap{
  margin: -36px auto 10px;
  position: relative;
  z-index: 2;
}
.auto-match-icon{
  font-size: clamp(2.2rem, 8vw, 3rem);
  filter: drop-shadow(0 4px 12px rgba(0,0,0,.4));
  display: inline-block;
  animation: autoMatchIconBob 2.2s ease-in-out infinite;
}
@keyframes autoMatchIconBob{
  0%, 100%{ transform: translateY(0); }
  50%{ transform: translateY(-6px); }
}
.matchmaking-screen.nova-duel-arena .auto-match-title{
  font-size: clamp(1.35rem, 4.2vw, 1.85rem);
  margin: 0 0 10px;
  line-height: 1.2;
  background: linear-gradient(90deg, #e0f2fe, #fef9c3, #e0f2fe);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: autoMatchTitleShine 4s linear infinite;
}
@keyframes autoMatchTitleShine{
  to{ background-position: 200% center; }
}
.auto-match-sub{
  margin: 0 auto 16px;
  max-width: 36em;
  font-size: clamp(13px, 2.8vw, 15px);
  line-height: 1.55;
  color: #bae6fd;
  font-weight: 600;
}
.auto-match-hints{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 6px;
}
.auto-match-chip{
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .03em;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(15,23,42,.75);
  border: 1px solid rgba(34,211,238,.28);
  color: #e0f2fe;
}
.auto-match-found-overlay{
  position: absolute;
  inset: 0;
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  border-radius: inherit;
  background: rgba(2,6,23,.7);
  backdrop-filter: blur(5px);
}
.auto-match-found-overlay[hidden]{
  display: none !important;
}
.auto-match-found-card{
  width: min(540px, 92%);
  border-radius: 22px;
  padding: clamp(18px, 4vw, 30px) clamp(16px, 4vw, 28px);
  border: 2px solid rgba(34,211,238,.55);
  background:
    radial-gradient(90% 80% at 50% -10%, rgba(56,189,248,.2), transparent 55%),
    linear-gradient(160deg, rgba(15,23,42,.95), rgba(30,27,75,.86));
  box-shadow: 0 14px 46px rgba(0,0,0,.45), 0 0 38px rgba(34,211,238,.22) inset;
  text-align: center;
}
.auto-match-found-title{
  font-size: clamp(1.25rem, 5vw, 2rem);
  font-weight: 900;
  line-height: 1.2;
  color: #e0f2fe;
  text-shadow: 0 2px 12px rgba(34,211,238,.3);
}
.auto-match-found-count{
  margin-top: 10px;
  font-size: clamp(2rem, 10vw, 3.4rem);
  font-weight: 900;
  color: #fef9c3;
  text-shadow: 0 2px 12px rgba(251,191,36,.35);
}
.nova-auto-match-shell .searching-animation{
  width: 120px;
  height: 120px;
  margin: 0 auto;
}

/* Searching ring */
.searching-animation{
  width: 140px; height: 140px; margin: 10px auto 16px auto;
  border-radius: 50%;
  position: relative;
  background: conic-gradient(from 0deg, rgba(0,255,255,.0) 0% 60%, rgba(0,255,255,.6) 75%, rgba(255,0,255,.65) 95%, rgba(0,255,255,.0) 100%);
  -webkit-mask: radial-gradient(circle, transparent 62%, #000 64%);
  mask: radial-gradient(circle, transparent 62%, #000 64%);
  animation: novaSpin 1.8s linear infinite;
  filter: drop-shadow(0 0 8px rgba(0,255,255,.35));
}
.searching-animation::before{
  content:''; position:absolute; inset:18%;
  border-radius:50%;
  box-shadow: 0 0 14px rgba(0,255,200,.45), inset 0 0 18px rgba(0,255,200,.25);
  animation: novaPulse 2.4s ease-in-out infinite;
}
.searching-animation::after{
  content:''; position:absolute; left:50%; top:50%; width:12px; height:12px;
  transform: translate(-50%, -50%);
  border-radius:50%;
  background: radial-gradient(circle at 35% 35%, #fff, #9be6ff 50%, #00ffd9 70%, transparent 71%);
  box-shadow: 0 0 18px rgba(0,255,255,.65);
  animation: novaPing 1.8s ease-in-out infinite;
}
@keyframes novaSpin{ to{ transform: rotate(1turn) } }
@keyframes novaPulse{ 0%,100%{ opacity:.7; transform: scale(1)} 50%{ opacity:1; transform: scale(1.05)} }
@keyframes novaPing{ 0%,100%{ transform: translate(-50%,-50%) scale(.95)} 50%{ transform: translate(-50%,-50%) scale(1.05)} }

/* Available players list */
.available-players{
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(12,24,48,.55);
  border:1px solid rgba(0,200,255,.18);
}
.available-players h3{
  margin: 0 0 8px 0;
  color:#a5c9ff;
  font-weight:800;
  text-shadow: 0 0 8px rgba(0,140,255,.25);
}
.players-list .player-item{
  background: rgba(16,30,64,.6) !important;
  border:1px solid rgba(0,200,255,.22) !important;
  color:#e9f4ff !important;
  transition: transform .2s ease, box-shadow .2s ease;
}
.players-list .player-item:hover{
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,.35), 0 0 18px rgba(0,200,255,.18) inset;
}

/* Cancel button */
.cancel-search-button{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px; 
  margin: 14px auto 2px auto; padding: 12px 22px;
  border-radius: 12px; cursor:pointer; border:1px solid rgba(255,80,95,.4);
  background: linear-gradient(180deg, rgba(55,10,18,.65), rgba(35,8,12,.75));
  color:#ffe9ec; font-weight:900; letter-spacing:.3px;
  box-shadow: 0 8px 18px rgba(0,0,0,.35), 0 0 16px rgba(255,80,95,.2) inset;
  transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
}
.cancel-search-button:hover{ transform: translateY(-1px); filter: brightness(1.05); box-shadow: 0 12px 26px rgba(0,0,0,.45), 0 0 20px rgba(255,80,95,.3) inset; }
.cancel-search-button:active{ transform:none; box-shadow: 0 6px 12px rgba(0,0,0,.25) }

/* Small banner style if used */
.selecting-student-banner{
  display:block; text-align:center; margin: 6px 0 10px 0; padding: 8px 12px;
  border-radius: 10px;
  background: rgba(12,24,48,.55);
  border:1px solid rgba(0,200,255,.22);
  color:#e9f4ff;
}

/* Count-down neon style (if visible on this screen) */
#duelCountdown{
  display:inline-flex; align-items:center; justify-content:center;
  width: 52px; height: 52px; margin: 0 auto 8px auto;
  font-weight: 900; font-size: 1.2rem; color:#001014;
  background: radial-gradient(circle at 50% 45%, #a6f7ff, #35e6d9 60%, #00a3ff 100%);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(0,255,255,.5), 0 0 22px rgba(0,180,255,.35);
}

/* Responsive tweaks */
@media (max-width:540px){
  .matchmaking-screen.nova-duel-arena .matchmaking-content{ padding: 16px }
  .available-players{ padding: 10px }
}