:root{--font-primary:"Inter", sans-serif;--font-display:"Outfit", sans-serif;--transition-smooth:all .3s cubic-bezier(.4, 0, .2, 1);--bg-main:#090a15;--bg-gradient:radial-gradient(circle at 50% 0%, #1c1836 0%, #090a15 70%);--glass-bg:#16162c73;--glass-border:#ffffff14;--glass-border-glow:#6366f133;--glass-shadow:0 8px 32px 0 #0000005e;--color-primary:#6366f1;--color-primary-glow:#6366f173;--color-secondary:#ec4899;--color-success:#10b981;--color-success-glow:#10b9814d;--color-danger:#ef4444;--color-danger-glow:#ef44444d;--color-warning:#f59e0b;--text-main:#f3f4f6;--text-muted:#9ca3af;--text-dark:#1f2937}body.theme-sunset{--bg-main:#0c0a0a;--bg-gradient:radial-gradient(circle at 50% 0%, #2b1810 0%, #0c0a0a 70%);--glass-bg:#24141473;--glass-border:#ffffff14;--glass-border-glow:#f9731633;--glass-shadow:0 8px 32px 0 #00000080;--color-primary:#f97316;--color-primary-glow:#f9731673;--color-secondary:#eab308;--color-success:#84cc16;--color-success-glow:#84cc164d;--color-danger:#f43f5e;--color-danger-glow:#f43f5e4d;--color-warning:#fbbf24;--text-main:#f9fafb;--text-muted:#9ca3af;--text-dark:#1f2937}body.theme-emerald{--bg-main:#050806;--bg-gradient:radial-gradient(circle at 50% 0%, #0c2214 0%, #050806 70%);--glass-bg:#101c1473;--glass-border:#ffffff14;--glass-border-glow:#10b98133;--glass-shadow:0 8px 32px 0 #0006;--color-primary:#10b981;--color-primary-glow:#10b98173;--color-secondary:#06b6d4;--color-success:#34d399;--color-success-glow:#34d3994d;--color-danger:#f87171;--color-danger-glow:#f871714d;--color-warning:#fbbf24;--text-main:#f9fafb;--text-muted:#a7f3d0;--text-dark:#064e3b}body.theme-light{--bg-main:#f3f4f6;--bg-gradient:radial-gradient(circle at 50% 0%, #e0e7ff 0%, #f3f4f6 75%);--glass-bg:#ffffffa6;--glass-border:#00000014;--glass-border-glow:#6366f126;--glass-shadow:0 8px 32px 0 #1f26870f;--color-primary:#4f46e5;--color-primary-glow:#4f46e526;--color-secondary:#db2777;--color-success:#059669;--color-success-glow:#05966926;--color-danger:#dc2626;--color-danger-glow:#dc262626;--color-warning:#d97706;--text-main:#1f2937;--text-muted:#6b7280;--text-dark:#fff}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{font-family:var(--font-primary);background:var(--bg-main);background-image:var(--bg-gradient);color:var(--text-main);background-attachment:fixed;min-height:100vh;line-height:1.5;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);letter-spacing:-.02em;font-weight:700}.app-container{flex-direction:column;max-width:480px;min-height:100vh;margin:0 auto;padding:16px;display:flex;position:relative}.glass-card{background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);transition:var(--transition-smooth);border-radius:20px;padding:24px}.glass-card:hover{border-color:var(--glass-border-glow);box-shadow:0 8px 32px #6366f126}.glass-input{border:1px solid var(--glass-border);width:100%;color:var(--text-main);font-family:var(--font-primary);transition:var(--transition-smooth);background:#ffffff0d;border-radius:12px;outline:none;padding:14px 16px;font-size:16px}.glass-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 4px var(--color-primary-glow);background:#ffffff14}.btn{width:100%;font-family:var(--font-display);cursor:pointer;transition:var(--transition-smooth);-webkit-user-select:none;user-select:none;border:none;border-radius:12px;justify-content:center;align-items:center;gap:10px;padding:14px 24px;font-size:16px;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--color-primary), #4f46e5);color:#fff;box-shadow:0 4px 16px var(--color-primary-glow)}.btn-primary:active{box-shadow:0 2px 8px var(--color-primary-glow);transform:scale(.98)}.btn-primary:disabled{color:var(--text-muted);box-shadow:none;cursor:not-allowed;background:#374151}.btn-secondary{color:var(--text-main);border:1px solid var(--glass-border);background:#ffffff14}.btn-secondary:active{background:#ffffff1f;transform:scale(.98)}.btn-accent{background:linear-gradient(135deg, var(--color-secondary), #db2777);color:#fff;box-shadow:0 4px 16px #ec48994d}.btn-accent:active{transform:scale(.98)}.progress-container{border:1px solid var(--glass-border);background:#ffffff14;border-radius:10px;width:100%;height:12px;position:relative;overflow:hidden}.progress-bar{background:linear-gradient(90deg, var(--color-primary), var(--color-secondary));height:100%;transition:width .4s ease-out;position:relative}.progress-bar:after{content:"";background:linear-gradient(90deg,#fff0 0%,#ffffff4d 50%,#fff0 100%);animation:1.5s infinite shimmer;position:absolute;inset:0}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.fade-in{animation:.4s cubic-bezier(.16,1,.3,1) forwards fadeIn}.slide-up{animation:.5s cubic-bezier(.16,1,.3,1) forwards slideUp}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.option-card{border:1px solid var(--glass-border);cursor:pointer;width:100%;font-family:var(--font-primary);color:var(--text-main);text-align:left;transition:var(--transition-smooth);background:#ffffff0a;border-radius:16px;align-items:center;gap:12px;padding:16px;font-size:16px;display:flex}.option-card:hover{border-color:var(--glass-border-glow);background:#ffffff14}.option-badge{width:32px;height:32px;font-family:var(--font-display);color:var(--text-main);transition:var(--transition-smooth);background:#ffffff1a;border-radius:10px;justify-content:center;align-items:center;font-weight:700;display:flex}.option-card.correct{border-color:var(--color-success);box-shadow:0 0 16px var(--color-success-glow);background:#10b98126}.option-card.correct .option-badge{background:var(--color-success);color:#fff}.option-card.wrong{border-color:var(--color-danger);box-shadow:0 0 16px var(--color-danger-glow);background:#ef444426}.option-card.wrong .option-badge{background:var(--color-danger);color:#fff}.player-list{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:16px;display:grid}.player-item{border:1px solid var(--glass-border);background:#ffffff08;border-radius:12px;align-items:center;gap:10px;padding:12px;animation:.3s forwards fadeIn;display:flex}.player-avatar{background:linear-gradient(135deg, var(--color-primary), var(--color-secondary));color:#fff;width:36px;height:36px;font-weight:700;font-family:var(--font-display);border-radius:50%;justify-content:center;align-items:center;display:flex}.player-name{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:500;overflow:hidden}.timer-container{font-family:var(--font-display);color:var(--color-primary);justify-content:center;align-items:center;gap:8px;font-size:18px;font-weight:700;display:flex}.timer-container.urgent{color:var(--color-danger);animation:1s infinite alternate pulse}@keyframes pulse{0%{transform:scale(1)}to{transform:scale(1.05)}}.podium-container{justify-content:center;align-items:flex-end;gap:16px;height:200px;margin:32px 0;display:flex}.podium-column{width:80px;transition:var(--transition-smooth);flex-direction:column;align-items:center;display:flex}.podium-block{width:100%;font-family:var(--font-display);color:#fff;box-shadow:var(--glass-shadow);border-radius:12px 12px 0 0;justify-content:center;align-items:center;font-size:24px;font-weight:800;display:flex}.podium-1st{background:linear-gradient(#facc15 0%,#ca8a04 100%);height:140px}.podium-2nd{background:linear-gradient(#cbd5e1 0%,#64748b 100%);height:100px}.podium-3rd{background:linear-gradient(#fed7aa 0%,#c2410c 100%);height:70px}body.theme-light{--bg-main:#f3f4f6;--bg-gradient:radial-gradient(circle at 50% 0%, #e0e7ff 0%, #f3f4f6 70%);--glass-bg:#ffffffb3;--glass-border:#6366f126;--glass-border-glow:#6366f166;--glass-shadow:0 8px 32px 0 #6366f114;--text-main:#1f2937;--text-muted:#4b5563}body.theme-light .glass-card{box-shadow:0 8px 32px #6366f10d}body.theme-light .glass-input{color:#1f2937;background:#fffc}body.theme-light .btn-secondary{color:#1f2937;background:#ffffffe6}body.theme-light h1,body.theme-light h2,body.theme-light h3,body.theme-light h4,body.theme-light .player-name{color:#1f2937!important}body.theme-light .option-card{color:#1f2937;background:#fffc}body.theme-light .option-card:hover{background:#fffffff2}body.theme-light .option-badge{color:#1f2937;background:#0000000d}.bottom-nav{background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);max-width:448px;height:64px;box-shadow:var(--glass-shadow);z-index:1000;transition:var(--transition-smooth);border-radius:20px;justify-content:space-around;align-items:center;margin:0 auto;padding:0 8px;display:flex;position:fixed;bottom:16px;left:16px;right:16px}.bottom-nav-item{color:var(--text-muted);font-family:var(--font-display);cursor:pointer;width:70px;height:50px;transition:var(--transition-smooth);background:0 0;border:none;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:4px;font-size:11px;font-weight:600;display:flex}.bottom-nav-item:active{transform:scale(.95)}.bottom-nav-item.active{color:var(--color-primary);background:#6366f114}.bottom-nav-padding{padding-bottom:80px}.theme-switch-btn{background:var(--glass-bg);border:1px solid var(--glass-border);width:40px;height:40px;color:var(--text-main);cursor:pointer;box-shadow:var(--glass-shadow);transition:var(--transition-smooth);border-radius:12px;justify-content:center;align-items:center;display:flex}.theme-switch-btn:hover{border-color:var(--glass-border-glow)}.flashcard-scene{perspective:1000px;cursor:pointer;width:100%;height:300px;margin:16px 0}.flashcard-card{width:100%;height:100%;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.4,0,.2,1);position:relative}.flashcard-card.is-flipped{transform:rotateY(180deg)}.flashcard-face{backface-visibility:hidden;width:100%;height:100%;box-shadow:var(--glass-shadow);border:1px solid var(--glass-border);border-radius:20px;flex-direction:column;justify-content:center;align-items:center;padding:24px;display:flex;position:absolute}.flashcard-front{background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);color:var(--text-main)}.flashcard-back{-webkit-backdrop-filter:blur(16px);color:var(--text-main);background:#16162cb3;overflow-y:auto;transform:rotateY(180deg)}body.theme-light .flashcard-back{background:#ffffffd9}.auto-advance-container{background:#ffffff0d;border-radius:2px;width:100%;height:3px;margin-top:12px;overflow:hidden}.auto-advance-bar{background:var(--color-primary);transform-origin:0;width:100%;height:100%;animation:3.5s linear forwards shrinkWidth}.auto-advance-bar-fast{background:var(--color-primary);transform-origin:0;width:100%;height:100%;animation:1.2s linear forwards shrinkWidthFast}@keyframes shrinkWidth{0%{transform:scaleX(1)}to{transform:scaleX(0)}}@keyframes shrinkWidthFast{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.progress-ring{transform:rotate(-90deg)}.progress-ring-circle{transform-origin:50%;transition:stroke-dashoffset .35s}