*{box-sizing:border-box;margin:0;padding:0}
:root{--nav-h:48px}
body{font-family:'Segoe UI',system-ui,sans-serif;background:#1a0a2e;color:#fff;min-height:100vh}
.container{max-width:800px;margin:0 auto;padding:20px}
h1,h2{text-align:center;margin-bottom:20px}
.card{background:#2d1b4e;border-radius:16px;padding:24px;margin-bottom:16px;box-shadow:0 4px 20px rgba(0,0,0,.3)}
input,select,textarea{width:100%;padding:12px;border-radius:8px;border:2px solid #5a3d8a;background:#1a0a2e;color:#fff;font-size:16px;margin-bottom:12px}
input[type="checkbox"]{width:auto;margin-right:8px;vertical-align:middle}
label.cb{display:flex;align-items:center;gap:8px;cursor:pointer}
input:focus,select:focus,textarea:focus{outline:none;border-color:#a855f7}
button,.btn{display:inline-block;padding:12px 24px;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none;text-align:center}
.btn-primary{background:linear-gradient(135deg,#a855f7,#6d28d9);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(168,85,247,.4)}
.btn-danger{background:#dc2626;color:#fff}
.btn-success{background:#16a34a;color:#fff}
.btn-secondary{background:#4b5563;color:#fff}
.btn-block{display:block;width:100%}
.tabs{display:flex;gap:8px;margin-bottom:16px}
.tab{flex:1;padding:10px;text-align:center;border-radius:8px;cursor:pointer;background:#1a0a2e;border:2px solid #5a3d8a}
.tab.active{background:#6d28d9;border-color:#a855f7}
.quiz-list{list-style:none}
.quiz-list li{display:flex;justify-content:space-between;align-items:center;padding:12px;border-bottom:1px solid #5a3d8a}
.quiz-list li:last-child{border-bottom:none}
.answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.answer-btn{padding:20px;border-radius:12px;font-size:18px;font-weight:600;cursor:pointer;border:3px solid transparent;transition:all .2s;text-align:center}
.answer-btn:nth-child(1){background:#e74c3c}
.answer-btn:nth-child(2){background:#3498db}
.answer-btn:nth-child(3){background:#f39c12}
.answer-btn:nth-child(4){background:#2ecc71}
.answer-btn:hover{transform:scale(1.03);opacity:.9}
.answer-btn.correct{border-color:#fff;box-shadow:0 0 20px rgba(46,204,113,.6)}
.answer-btn.wrong{opacity:.4}
.answer-btn.selected{border-color:#fff}
.timer-bar{height:8px;background:#5a3d8a;border-radius:4px;margin:16px 0;overflow:hidden}
.timer-fill{height:100%;background:linear-gradient(90deg,#a855f7,#e74c3c);transition:width .1s linear;border-radius:4px}
.scoreboard{list-style:none}
.scoreboard li{display:flex;justify-content:space-between;padding:10px 16px;border-radius:8px;margin-bottom:4px}
.scoreboard li:nth-child(1){background:linear-gradient(135deg,#f59e0b,#d97706);font-size:1.2em}
.scoreboard li:nth-child(2){background:#6b7280}
.scoreboard li:nth-child(3){background:linear-gradient(135deg,#b45309,#92400e)}
.scoreboard li:nth-child(n+4){background:#374151}
.invite-code{font-size:3em;font-weight:800;letter-spacing:.2em;text-align:center;color:#a855f7;padding:20px;background:#1a0a2e;border-radius:12px;margin:16px 0}
.player-list{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.player-chip{background:#6d28d9;padding:8px 16px;border-radius:20px;font-size:14px}
.hidden{display:none}
.nav{display:flex;justify-content:space-between;align-items:center;padding:8px 16px;background:#2d1b4e;margin-bottom:0;border-radius:0;position:sticky;top:0;z-index:101;box-shadow:0 2px 8px rgba(0,0,0,.3)}
.nav-brand{font-weight:800;font-size:1.6em;color:#a855f7;text-decoration:none;letter-spacing:.05em;cursor:help;position:absolute;left:50%;transform:translateX(-50%)}
.nav-left{display:flex;align-items:center;gap:10px}
.nav-right{display:flex;align-items:center;gap:8px}
.nav-left a,.nav-right a{color:#a855f7;text-decoration:none;font-size:13px}
.nav-username{color:#c4b5fd !important;font-size:13px}
.nav-join-btn{color:#22c55e !important;font-weight:700;border:1px solid #22c55e;border-radius:6px;padding:3px 10px;font-size:13px}
.nav-join-mobile{display:none}
.question-text{font-size:1.5em;text-align:center;padding:20px;font-weight:600}
.flex-row{display:flex;gap:12px;align-items:center}
.flex-row>*{flex:1}
#question-counter{text-align:center;color:#a855f7;font-size:1.1em;margin-bottom:8px}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:block;margin-bottom:4px;color:#c4b5fd;font-size:14px}
.refresh-btn{background:none;border:none;color:#a855f7;font-size:1.4em;cursor:pointer;padding:4px 8px;vertical-align:middle}
.refresh-btn:hover{transform:rotate(180deg);transition:transform .3s}
.form-group{margin-bottom:12px}

/* Phase 1: Animations */
@keyframes countZoom{0%{transform:scale(0.3);opacity:0}50%{transform:scale(1.3);opacity:1}100%{transform:scale(1);opacity:0}}
@keyframes bounceIn{0%{transform:scale(0.3);opacity:0}50%{transform:scale(1.1)}70%{transform:scale(0.95)}100%{transform:scale(1);opacity:1}}
@keyframes slideUp{0%{transform:translateY(30px);opacity:0}100%{transform:translateY(0);opacity:1}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}
@keyframes podiumPop{0%{transform:scale(0) rotate(-10deg);opacity:0}60%{transform:scale(1.2) rotate(5deg)}80%{transform:scale(0.95) rotate(-2deg)}100%{transform:scale(1) rotate(0);opacity:1}}
@keyframes streakPulse{0%{transform:scale(1);text-shadow:0 0 10px rgba(245,158,11,.4)}50%{transform:scale(1.15);text-shadow:0 0 30px rgba(245,158,11,.8)}100%{transform:scale(1);text-shadow:0 0 10px rgba(245,158,11,.4)}}
@keyframes twinkle{0%,100%{opacity:1;text-shadow:0 0 5px rgba(255,215,0,.3)}50%{opacity:.7;text-shadow:0 0 15px rgba(255,215,0,.8)}}
@keyframes twinkleBright{0%,100%{opacity:1;text-shadow:0 0 10px rgba(255,215,0,.6),0 0 20px rgba(255,215,0,.3)}50%{opacity:.85;text-shadow:0 0 25px rgba(255,215,0,1),0 0 40px rgba(255,215,0,.5)}}
.countdown-num{font-size:8em;font-weight:900;text-align:center;animation:countZoom 0.8s ease-out forwards;color:#a855f7;text-shadow:0 0 40px rgba(168,85,247,.6)}
.countdown-go{font-size:5em;font-weight:900;text-align:center;animation:bounceIn 0.6s ease-out forwards;color:#22c55e;text-shadow:0 0 30px rgba(34,197,94,.5)}
.streak-badge{display:inline-block;animation:bounceIn 0.5s ease-out,streakPulse 1.2s ease-in-out 0.5s infinite;background:linear-gradient(135deg,#f59e0b,#d97706);padding:12px 28px;border-radius:24px;font-weight:800;font-size:1.6em;margin:12px 0;box-shadow:0 0 20px rgba(245,158,11,.4)}
.points-anim{font-size:1.4em;font-weight:800;color:#a855f7;animation:slideUp 0.3s ease-out}
.podium-popup{animation:podiumPop 0.8s ease-out forwards;text-align:center;margin:12px 0}
.podium-popup .trophy{font-size:3em}
.podium-popup .place{font-size:1.5em;font-weight:700;color:#f59e0b}
.my-score-highlight{animation:pulse 1s ease-in-out infinite;background:linear-gradient(135deg,#6d28d9,#4c1d95) !important;border:2px solid #a855f7}
.title-display{font-size:2em;font-weight:800;text-align:center;color:#c4b5fd;padding:30px;animation:bounceIn 0.8s ease-out}
.streak-leader{text-align:center;color:#f59e0b;font-size:0.9em;margin-top:4px}

.stars-earned{animation:twinkle 1.5s ease-in-out infinite}
.stars-perfect{animation:twinkleBright 1s ease-in-out infinite}
#countdown-view:not(.hidden),#mystery-view:not(.hidden){display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:300px}

/* Topic header in gameplay */
.quiz-topic-header{font-size:1.8em;font-weight:700;color:#a855f7;text-overflow:ellipsis;overflow:hidden;white-space:nowrap}

/* Topic display in lobby - larger than h2 */
#lobby-topic{font-size:2.8em !important;font-weight:800 !important;color:#a855f7 !important;margin-bottom:16px !important;letter-spacing:.02em !important;text-align:center !important;line-height:1.2}

/* Topic header on reveal and end screens - larger than h2 */
#reveal-topic-header,#end-topic-header{font-size:1.8em !important;font-weight:700 !important;color:#a855f7 !important;margin-bottom:12px !important;text-align:center !important}

/* Mobile nav */
.mobile-logout-btn{display:none}
@media(max-width:600px){
  :root{--nav-h:44px}
  .nav{padding:6px 10px}
  .nav-brand{font-size:1.2em}
  .nav-left{gap:6px}
  .nav-right{gap:4px}
  .nav-logout-btn{display:none !important}
  .mobile-logout-btn{display:inline-block !important;padding:3px 8px;font-size:12px}
  .nav-join-desktop{display:none !important}
  .nav-join-mobile{display:inline-block !important}
  .admin-label{display:none}
  #nav-start-btn{display:none !important}
  #mobile-start-bar{display:flex !important}
  .container{padding-bottom:70px}
  #context-strip{flex-direction:column;align-items:flex-start}
  #lobby-topic{font-size:1.6em !important}
  .create-game-btn{display:none !important}
}

/* Volume slider */
.vol-slider{width:120px;height:6px;accent-color:#a855f7}

/* Admin config grid */
.cfg-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;margin-bottom:12px}
.cfg-grid .form-group{margin-bottom:0}
.toast-container{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{background:#2d1b4e;border:2px solid #5a3d8a;border-radius:12px;padding:14px 24px;color:#fff;font-size:15px;font-weight:500;box-shadow:0 8px 30px rgba(0,0,0,.5);animation:toastIn 0.3s ease-out;pointer-events:auto;max-width:400px;text-align:center}
.toast.success{border-color:#22c55e;background:linear-gradient(135deg,#1a3a2a,#2d1b4e)}
.toast.error{border-color:#ef4444;background:linear-gradient(135deg,#3a1a1a,#2d1b4e)}
.toast.info{border-color:#a855f7;background:linear-gradient(135deg,#2d1b4e,#1a0a2e)}
.toast.fadeout{animation:toastOut 0.3s ease-in forwards}
@keyframes toastIn{0%{transform:translateY(-20px);opacity:0}100%{transform:translateY(0);opacity:1}}
@keyframes toastOut{0%{opacity:1}100%{transform:translateY(-20px);opacity:0}}
@keyframes startPulse{0%,100%{box-shadow:0 0 0 0 rgba(22,163,74,.5)}70%{box-shadow:0 0 0 8px rgba(22,163,74,0)}}
.start-pulse{animation:startPulse 1.5s ease-in-out infinite}