:root{--bg1:#6ec6ff;--bg2:#b8f2e6;--bg3:#ffe66d;--card:#fff;--text:#1a2b4a;--muted:#5a6b85;--primary:#4f7cff;--primary-dark:#3a5fd4;--secondary:#ff8fab;--success:#2ecc71;--danger:#ff6b6b;--shadow:0 8px 24px #1a2b4a1f;--radius:20px;color:var(--text);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:Nunito,system-ui,sans-serif;font-weight:700;line-height:1.4}*,:before,:after{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:#4f46e5;min-height:100dvh;margin:0}button,a{font-family:inherit;font-weight:700}button{cursor:pointer;background:0 0;border:none}a{color:inherit;text-decoration:none}.muted{color:var(--muted);font-weight:600}.center{text-align:center}.yt-quiz{background:linear-gradient(#7b4dff 0%,#3d7cf5 45%,#1a9bb5 100%);width:100%;min-height:100dvh;position:relative;overflow:hidden}.yt-quiz-inner{z-index:2;flex-direction:column;align-items:center;max-width:560px;min-height:100dvh;margin:0 auto;padding:14px 16px 28px;display:flex;position:relative}.sunburst{z-index:0;pointer-events:none;background:linear-gradient(160deg,#8b5cf6 0%,#6366f1 25%,#3b82f6 55%,#14b8a6 100%);position:fixed;inset:0;overflow:hidden}.sunburst-spin{opacity:.95;background:repeating-conic-gradient(#ffffff24 0deg 10deg,#fff0 10deg 20deg);width:220vmax;height:220vmax;animation:28s linear infinite sunburstRotate;position:absolute;top:50%;left:50%;translate:-50% -50%}.sunburst-spin:before{content:"";mix-blend-mode:soft-light;background:repeating-conic-gradient(from 5deg,#6366f159 0deg 10deg,#14b8a633 10deg 20deg);position:absolute;inset:0}.sunburst-vignette{background:radial-gradient(circle at 50% 45%,#ffffff1f 0%,#0000 42%),radial-gradient(at 50% 100%,#00000026 0%,#0000 50%);position:absolute;inset:0}@keyframes sunburstRotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.yt-top{justify-content:space-between;align-items:flex-start;gap:10px;width:100%;margin-bottom:4px;display:flex}.yt-top-left{align-items:flex-start;gap:10px;display:flex}.yt-back,.yt-speak{color:#fff;background:#00000059;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.25rem;display:flex;box-shadow:0 4px 12px #0003}.yt-round-block{flex-direction:column;align-items:flex-start;gap:6px;display:flex}.yt-round-circle{color:#fff;background:#0f172a;border:3px solid #fff3;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.5rem;font-weight:800;display:flex;box-shadow:0 4px #0006,0 6px 16px #00000040}.yt-diff{letter-spacing:.06em;color:#0a0;text-transform:uppercase;background:#39e75f;border-radius:6px;padding:3px 10px;font-size:.75rem;font-weight:800;box-shadow:0 2px #1a9e3a}.yt-diff--medium{color:#5c3d00;background:#ffc107;box-shadow:0 2px #c79100}.yt-diff--hard{color:#fff;background:#ff3b5c;box-shadow:0 2px #b01030}.yt-title{letter-spacing:.02em;text-align:center;color:#fff;text-transform:uppercase;-webkit-text-stroke:1.5px #0f172a;paint-order:stroke fill;text-shadow:0 3px #0f172a,0 6px 18px #00000059;margin:8px 0 18px;font-size:clamp(1.55rem,6.5vw,2.35rem);font-weight:900;line-height:1.1}.yt-main{flex-direction:column;flex:1;align-items:center;gap:18px;width:100%;display:flex}.yt-main--stack{width:100%;max-width:420px;margin:0 auto;flex-direction:column!important;justify-content:flex-start!important;align-items:center!important}.yt-flag-wrap{aspect-ratio:3/2;background:#fff;border-radius:18px;justify-content:center;align-items:center;width:min(340px,88vw);padding:10px;animation:.45s cubic-bezier(.34,1.45,.64,1) ytFlagIn;display:flex;overflow:hidden;box-shadow:0 10px #0000001f,0 18px 40px #00000047}@keyframes ytFlagIn{0%{opacity:0;transform:scale(.75)}to{opacity:1;transform:scale(1)}}.yt-flag-img{object-fit:cover;border-radius:10px;width:100%;height:100%;display:block}.yt-flag-emoji{justify-content:center;align-items:center;width:100%;height:100%;font-size:6rem}.yt-flag-wrap--ok{animation:.45s ytPop;box-shadow:0 10px #2ecc7159,0 0 0 5px #39e75f,0 18px 40px #00000040}.yt-flag-wrap--bad{animation:.45s shake;box-shadow:0 10px #ff3b5c4d,0 0 0 5px #ff3b5c,0 18px 40px #00000040}@keyframes ytPop{0%{transform:scale(1)}40%{transform:scale(1.06)}to{transform:scale(1)}}.yt-options{grid-template-rows:repeat(3,54px);align-content:start;justify-items:stretch;gap:12px;width:100%;max-width:380px;min-height:186px;margin:0 auto;display:grid}.yt-opt{box-sizing:border-box;text-align:left;background:#fff;border-radius:999px;align-items:center;gap:12px;width:100%;height:54px;margin:0;padding:6px 16px 6px 6px;transition:background .15s,outline .15s,opacity .15s;display:flex;box-shadow:0 5px #0000001f,0 8px 20px #00000026}.yt-opt:active:not(:disabled){filter:brightness(.98);box-shadow:0 2px #0000001f}.yt-letter{color:#fff;border:3px solid #fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;font-size:1.25rem;font-weight:900;display:flex;box-shadow:0 2px #0003}.yt-opt-text{color:#0f172a;letter-spacing:.02em;font-size:1.05rem;font-weight:800;line-height:1.15}.yt-opt--correct{outline:3px solid #39e75f;box-shadow:0 5px #39e75f59,0 8px 20px #0000001f;background:#e8ffe8!important}.yt-opt--wrong{outline:3px solid #ff3b5c;background:#ffe8ec!important}.yt-opt--ghost{opacity:.22;filter:grayscale(.6);pointer-events:none;box-shadow:none}.yt-timer-track{background:#0f172a;border:3px solid #1e293b;border-radius:999px;flex-shrink:0;width:min(400px,92vw);height:22px;margin-top:20px;overflow:hidden;box-shadow:inset 0 2px 6px #00000073,0 4px #00000026}.yt-timer-track--hidden{visibility:hidden;pointer-events:none}.yt-feedback-slot{justify-content:center;align-items:center;width:100%;min-height:48px;display:flex}.yt-timer-fill{background:linear-gradient(#7dff7a 0%,#39e75f 45%,#1db954 100%);border-radius:999px;height:100%;transition:width 50ms linear;box-shadow:inset 0 2px #ffffff73}.yt-timer-fill--urgent{background:linear-gradient(#ffb347 0%,#ff3b5c 100%);animation:.35s infinite alternate timerBlink}@keyframes timerBlink{0%{filter:brightness()}to{filter:brightness(1.25)}}.yt-feedback{color:#fff;text-shadow:0 2px #0006;border-radius:12px;margin:12px 0 0;padding:8px 16px;font-size:1.1rem;font-weight:800}.yt-feedback--ok{background:#39e75f59}.yt-feedback--bad{background:#ff3b5c59}.yt-score{color:#fff;text-shadow:0 2px 8px #00000059;margin-top:auto;padding-top:16px;font-size:1.1rem;font-weight:800}.yt-quiz .result-card{width:100%;margin-top:40px}@media (width>=700px){.yt-quiz-inner{max-width:900px}.yt-quiz-inner--wide{max-width:960px}.yt-main:not(.yt-main--stack){flex-direction:row;justify-content:center;align-items:center;gap:28px;width:100%}.yt-main:not(.yt-main--stack) .yt-flag-wrap{flex-shrink:0;width:min(420px,48%)}.yt-main:not(.yt-main--stack) .yt-options{flex:1;max-width:360px}.yt-main--stack .yt-flag-wrap{width:min(380px,90vw)}.yt-round-block{margin-left:0}}.shell-header{grid-template-columns:48px 1fr 48px;align-items:center;gap:8px;width:100%;margin-bottom:8px;display:grid}.shell-header-spacer{width:44px;height:44px}.shell-title{margin:0!important;font-size:clamp(1.25rem,5vw,1.85rem)!important}.shell-lead{text-align:center;color:#ffffffeb;text-shadow:0 2px 8px #00000040;margin:0 0 16px;font-size:1rem;font-weight:700}.home-hero-yt{text-align:center;width:100%;margin-bottom:18px}.home-flags-bounce{justify-content:center;gap:14px;margin-bottom:8px;font-size:2.4rem;display:flex}.home-flags-bounce span{animation:2s ease-in-out infinite bob;display:inline-block}.home-flags-bounce span:nth-child(2){animation-delay:.2s}.home-flags-bounce span:nth-child(3){animation-delay:.4s}.home-flags-bounce span:nth-child(4){animation-delay:.6s}.home-main-title{margin:4px 0 8px!important;font-size:clamp(1.7rem,7vw,2.5rem)!important}.home-sub-yt{color:#fffffff2;text-shadow:0 2px 6px #00000040;margin:0 0 14px;font-size:1.05rem;font-weight:700}.home-stats-yt{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:8px;display:flex}.yt-stat-pill{color:#0f172a;background:#fff;border-radius:999px;padding:8px 14px;font-size:.95rem;font-weight:800;box-shadow:0 4px #0000001f,0 8px 18px #00000026}.yt-stat-pill--diff{color:#0a0}.yt-menu{flex-direction:column;gap:12px;width:100%;padding-bottom:24px;display:flex}.yt-menu-item{text-align:left;color:#0f172a;background:#fff;border:3px solid #0000;border-radius:999px;align-items:center;gap:12px;width:100%;padding:10px 14px 10px 10px;transition:transform .12s;display:flex;box-shadow:0 5px #0000001f,0 10px 22px #00000026}.yt-menu-item:active{transform:scale(.98)translateY(2px);box-shadow:0 2px #0000001f}.yt-menu-item--big{background:linear-gradient(#fff 0%,#f0fff4 100%);border-color:#39e75f;padding:14px 16px 14px 12px;box-shadow:0 6px #39e75f59,0 12px 28px #0000002e}.yt-menu-item--big .yt-menu-body strong{font-size:1.25rem}.yt-menu-item--active{background:#eef4ff;border-color:#4f7cff}.yt-menu-item--locked{opacity:.72;filter:grayscale(.25)}.yt-menu-letter{color:#fff;border:3px solid #fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.35rem;font-weight:900;display:flex;box-shadow:0 2px #0003}.yt-menu-item--big .yt-menu-letter{width:56px;height:56px;font-size:1.6rem}.yt-menu-emoji-inline{flex-shrink:0;font-size:1.4rem}.yt-menu-body{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.yt-menu-body strong{font-size:1.05rem;font-weight:800;line-height:1.15}.yt-menu-body span{color:#64748b;font-size:.82rem;font-weight:600;line-height:1.2}.yt-menu-chevron{color:#94a3b8;font-size:1.6rem;font-weight:800}.yt-menu-meta{color:#64748b;white-space:nowrap;font-size:.9rem;font-weight:800}.yt-check{color:#fff;background:#39e75f;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-weight:900;display:flex}.yt-card{background:#fffffff5;border-radius:24px;width:100%;margin-bottom:14px;padding:16px;box-shadow:0 8px #0000001a,0 14px 32px #0000002e}.yt-card-title{color:#0f172a;text-transform:uppercase;letter-spacing:.03em;margin:0 0 12px;font-size:1.05rem;font-weight:900}.yt-card-text{color:#475569;margin:0 0 8px;font-size:.95rem;font-weight:600;line-height:1.4}.yt-diff-list{flex-direction:column;gap:10px;display:flex}.yt-toggle{color:#0f172a;justify-content:space-between;align-items:center;gap:12px;padding:12px 4px;font-size:1rem;font-weight:700;display:flex}.yt-toggle input{accent-color:#4f7cff;width:24px;height:24px}.yt-btn{color:#0f172a;background:#fff;border:3px solid #e2e8f0;border-radius:999px;justify-content:center;align-items:center;width:100%;margin-top:8px;padding:14px 18px;font-size:1rem;font-weight:800;display:inline-flex;box-shadow:0 4px #0000001f}.yt-btn--primary{color:#fff;background:linear-gradient(135deg,#4f7cff,#7b5cff);border-color:#0000;box-shadow:0 5px #3a5fd4}.yt-btn--danger{color:#fff;background:#ff3b5c;border-color:#0000;box-shadow:0 5px #b01030}.yt-btn-row{flex-wrap:wrap;gap:10px;display:flex}.yt-btn-row .yt-btn{flex:1;min-width:120px}.yt-status{text-align:center;color:#1b7a3d;margin:10px 0 0;font-weight:700}.yt-confirm{text-align:center;color:#0f172a;font-weight:700}.yt-collect-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}@media (width>=600px){.yt-collect-grid{grid-template-columns:repeat(4,1fr)}}.yt-collect-card{background:#f1f5f9;border:2px solid #0000;border-radius:16px;flex-direction:column;align-items:center;gap:4px;min-height:96px;padding:10px 6px;display:flex}.yt-collect-card--open{background:#fff;border-color:#39e75f55;box-shadow:0 4px 12px #00000014}.yt-collect-flag{font-size:1.8rem}.yt-collect-name{text-align:center;color:#0f172a;font-size:.7rem;font-weight:800;line-height:1.15}.yt-collect-cap{color:#64748b;text-align:center;font-size:.62rem;font-weight:600}.yt-capital-hero{background:#fff;border-radius:24px;flex-direction:column;align-items:center;gap:8px;min-width:min(300px,88vw);padding:22px 28px;display:flex;box-shadow:0 10px #0000001f,0 18px 36px #0003}.yt-capital-icon{font-size:2rem}.yt-capital-hero strong{color:#0f172a;text-align:center;font-size:clamp(1.4rem,5vw,2rem)}.yt-opt--ok{outline:3px solid #39e75f;background:#e8ffe8!important}.yt-opt--bad{outline:3px solid #ff3b5c;animation:.4s shake;background:#ffe8ec!important}.yt-opt--dim{opacity:.4}.pairs-board{box-sizing:border-box;gap:14px;width:min(720px,100%);margin:12px auto 24px;display:grid}.pairs-board--4{grid-template-columns:repeat(4,minmax(0,1fr))}.pairs-board--6{grid-template-columns:repeat(3,minmax(0,1fr))}.pairs-board--8{grid-template-columns:repeat(4,minmax(0,1fr))}@media (width<=560px){.pairs-board--4,.pairs-board--8{grid-template-columns:repeat(2,minmax(0,1fr))}}.pair-tile{aspect-ratio:1;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:18px;width:100%;min-width:72px;height:auto;min-height:72px;margin:0;padding:0;animation:.35s both pairFadeIn;display:block;position:relative}@keyframes pairFadeIn{0%{opacity:0}to{opacity:1}}.pair-tile-inner{border-radius:18px;width:100%;height:100%;position:absolute;inset:0}.pair-tile-face{box-sizing:border-box;border-radius:18px;justify-content:center;align-items:center;width:100%;height:100%;transition:opacity .25s,transform .35s;display:flex;position:absolute;inset:0;overflow:hidden;box-shadow:0 8px #0000001f,0 14px 28px #00000038}.pair-tile-face--back{opacity:1;z-index:2;background:linear-gradient(145deg,#6d8cff 0%,#5b4dff 45%,#8b5cf6 100%);border:3px solid #ffffff80;transform:scale(1)}.pair-tile-face--front{opacity:0;z-index:1;pointer-events:none;background:#fff;border:4px solid #fff;padding:8px;transform:scale(.88)}.pair-tile--up .pair-tile-face--back,.pair-tile--match .pair-tile-face--back{opacity:0;z-index:1;pointer-events:none;transform:scale(.88)}.pair-tile--up .pair-tile-face--front,.pair-tile--match .pair-tile-face--front{opacity:1;z-index:2;pointer-events:auto;transform:scale(1)}.pair-tile-q{color:#fff;text-shadow:0 4px #00000026;font-size:clamp(2.2rem,9vw,3.4rem);font-weight:900;line-height:1}.pair-tile-back-shine{pointer-events:none;background:linear-gradient(125deg,#0000 35%,#ffffff40 50%,#0000 65%);position:absolute;inset:0}.pair-tile:active:not(:disabled){transform:scale(.96)}.pair-flag-big{background:#eef2ff;border-radius:12px;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative;overflow:hidden}.pair-flag-img{object-fit:cover;border-radius:10px;width:100%;height:100%;animation:2.8s ease-in-out infinite flagBob;display:block}@keyframes flagBob{0%,to{transform:scale(1.03)rotate(-.5deg)}50%{transform:scale(1.07)rotate(.5deg)}}.pair-flag-emoji-fallback{justify-content:center;align-items:center;width:100%;height:100%;font-size:clamp(2.8rem,11vw,4.5rem);line-height:1;display:none}.pair-flag-shine{pointer-events:none;background:linear-gradient(160deg,#fff6 0%,#0000 45%);border-radius:10px;position:absolute;inset:0}.pair-name-big{text-align:center;color:#0f172a;box-sizing:border-box;flex-direction:column;justify-content:center;align-items:center;gap:8px;width:100%;height:100%;padding:10px;font-size:clamp(.8rem,3vw,1.05rem);font-weight:900;line-height:1.15;display:flex}.pair-name-mini-flag{filter:drop-shadow(0 2px 4px #0000001f);font-size:clamp(2rem,8vw,2.8rem);line-height:1;animation:2.5s ease-in-out infinite flagBob}.pair-tile--match .pair-tile-face--front{border-color:#39e75f;box-shadow:0 0 0 4px #39e75f,0 10px 24px #39e75f59}.pair-tile--pop .pair-tile-face--front{animation:.5s pairPop}@keyframes pairPop{0%{transform:scale(1)}40%{transform:scale(1.08)}to{transform:scale(1)}}.pair-tile--match:disabled{cursor:default}@media (width>=700px){.pairs-board{gap:18px;max-width:680px}.pair-name-big{font-size:1.1rem}}.yt-puzzle .puzzle-board{background:#ffffffd9}.yt-puzzle .puzzle-piece{background:#fff}body{background:#4f46e5}.app-shell{min-height:100dvh}.page{animation:.35s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.home-page{flex-direction:column;gap:20px;padding-top:24px;display:flex}.home-hero{text-align:center}.home-flags-row{justify-content:center;gap:16px;margin-bottom:8px;font-size:2.8rem;display:flex}.bob{animation:2.2s ease-in-out infinite bob;display:inline-block}.bob-delay{animation-delay:.3s}.bob-delay2{animation-delay:.6s}@keyframes bob{0%,to{transform:translateY(0)rotate(-4deg)}50%{transform:translateY(-10px)rotate(4deg)}}.home-title{background:linear-gradient(90deg,#3a5fd4,#e91e8c);color:#0000;-webkit-background-clip:text;background-clip:text;margin:0 0 6px;font-size:clamp(1.8rem,6vw,2.4rem)}.home-sub{color:var(--muted);margin:0 0 14px;font-size:1.05rem}.home-stats{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.pill{background:var(--card);box-shadow:var(--shadow);border-radius:999px;padding:8px 14px;font-size:.95rem}.home-nav{flex-direction:column;gap:16px;display:flex}.home-cta{text-align:center;width:100%}.home-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.menu-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;flex-direction:column;align-items:center;gap:6px;padding:16px 8px;font-size:.85rem;transition:transform .15s;display:flex}.menu-card:active{transform:scale(.96)}.menu-emoji{font-size:1.8rem}.home-diff-hint{text-align:center;font-size:.9rem}.btn{box-shadow:var(--shadow);border-radius:16px;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:1rem;transition:transform .12s,filter .12s;display:inline-flex}.btn:active{transform:scale(.97)}.btn-primary{background:linear-gradient(135deg, var(--primary), #7b5cff);color:#fff}.btn-secondary{background:var(--card);color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{box-shadow:none;color:var(--muted);background:0 0}.btn-xl{border-radius:22px;padding:18px 28px;font-size:1.35rem}.btn-row{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.page-header{flex-direction:column;gap:4px;margin-bottom:16px;display:flex}.page-header h1{margin:0;font-size:1.5rem}.back-link{color:var(--primary-dark);width:fit-content;font-size:.95rem}.game-header{grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;margin-bottom:12px;display:grid}.game-header-center{text-align:center}.game-title{margin:0;font-size:1.15rem}.game-progress{color:var(--muted);margin:2px 0 0;font-size:.85rem}.icon-btn{background:var(--card);width:44px;height:44px;box-shadow:var(--shadow);border-radius:14px;justify-self:end;font-size:1.2rem}.icon-btn--ghost{visibility:hidden}.modes-list{flex-direction:column;gap:12px;display:flex}.mode-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:14px 16px;transition:transform .12s;display:grid}.mode-card:active{transform:scale(.98)}.mode-emoji{font-size:2rem}.mode-text{flex-direction:column;gap:2px;min-width:0;display:flex}.mode-text strong{font-size:1.05rem}.mode-text .muted{font-size:.85rem}.mode-stars{flex-direction:column;align-items:center;gap:2px;display:flex}.mode-star-count{color:var(--muted);font-size:.75rem}.game-page{padding-bottom:24px}.audio-start-banner{width:100%;margin-bottom:12px;animation:1.5s ease-in-out infinite bob}.quiz-show{max-width:520px;margin:0 auto}.quiz-top{grid-template-columns:44px 1fr 44px;align-items:center;gap:10px;margin-bottom:10px;display:grid}.quiz-back,.quiz-speak{width:44px;height:44px;box-shadow:var(--shadow);color:var(--primary-dark);background:#fff;border-radius:14px;justify-content:center;align-items:center;font-size:1.25rem;display:flex}.quiz-top-center{flex-direction:column;align-items:center;gap:6px;display:flex}.quiz-progress-track{background:#ffffff8c;border-radius:999px;width:100%;height:10px;overflow:hidden;box-shadow:inset 0 1px 3px #00000014}.quiz-progress-fill{background:linear-gradient(90deg,#4f7cff,#a855f7,#ff8fab);border-radius:999px;height:100%;transition:width .35s}.quiz-round-label{color:var(--muted);font-size:.85rem}.quiz-scorebar{justify-content:center;align-items:center;gap:12px;margin-bottom:8px;display:flex}.quiz-score-pill{box-shadow:var(--shadow);text-align:center;background:#fff;border-radius:999px;min-width:64px;padding:8px 14px;font-size:.95rem}.quiz-score-pill--hot{background:linear-gradient(135deg,#fff3e0,#ffe0b2);outline:2px solid #ff9800;animation:.6s infinite alternate hotPulse}@keyframes hotPulse{0%{transform:scale(1)}to{transform:scale(1.06)}}.timer-ring{flex-shrink:0;width:72px;height:72px;position:relative}.timer-ring-svg{width:100%;height:100%;transform:rotate(-90deg)}.timer-ring-bg{fill:none;stroke:#ffffffb3;stroke-width:8px}.timer-ring-fg{fill:none;stroke:#4f7cff;stroke-width:8px;stroke-linecap:round;transition:stroke-dashoffset 50ms linear,stroke .2s}.timer-ring--urgent .timer-ring-fg{stroke:#ff3b5c;filter:drop-shadow(0 0 6px #ff3b5c88)}.timer-ring--urgent .timer-ring-num{color:#ff3b5c;animation:.4s infinite alternate tickPulse}.timer-ring-num{color:var(--primary-dark);justify-content:center;align-items:center;font-size:1.5rem;font-weight:800;display:flex;position:absolute;inset:0}@keyframes tickPulse{0%{transform:scale(1)}to{transform:scale(1.12)}}.quiz-show-title{text-align:center;color:var(--text);margin:4px 0 12px;font-size:1.2rem}.flag-stage{aspect-ratio:3/2;justify-content:center;align-items:center;width:min(300px,78vw);margin:0 auto 14px;display:flex;position:relative}.flag-stage-glow{pointer-events:none;background:radial-gradient(circle,#fff 0%,#ffd54f55 35%,#0000 70%);animation:2.5s ease-in-out infinite glowPulse;position:absolute;inset:-12%}@keyframes glowPulse{0%,to{opacity:.7;transform:scale(1)}50%{opacity:1;transform:scale(1.05)}}.flag-stage-frame{background:#fff;border-radius:20px;justify-content:center;align-items:center;width:100%;height:100%;animation:.45s cubic-bezier(.34,1.4,.64,1) flagEnter;display:flex;position:relative;overflow:hidden;box-shadow:0 12px 40px #1a2b4a38,0 0 0 6px #fff,0 0 0 10px #4f7cff55}@keyframes flagEnter{0%{opacity:0;transform:scale(.7)rotate(-4deg)}to{opacity:1;transform:scale(1)rotate(0)}}.flag-stage-img{object-fit:cover;transform-origin:0;width:100%;height:100%;animation:3s ease-in-out infinite flagWaveSoft;display:block}.flag-stage-emoji{font-size:6rem;line-height:1}@keyframes flagWaveSoft{0%,to{transform:scale(1.02)skew(0)}50%{transform:scale(1.04)skew(.6deg)}}.flag-stage--correct .flag-stage-frame{animation:.5s popOk;box-shadow:0 12px 40px #2ecc7159,0 0 0 6px #fff,0 0 0 10px #2ecc71}.flag-stage--wrong .flag-stage-frame{filter:grayscale(.25);animation:.45s shake;box-shadow:0 12px 40px #ff6b6b59,0 0 0 6px #fff,0 0 0 10px #ff6b6b}@keyframes popOk{0%{transform:scale(1)}40%{transform:scale(1.08)}to{transform:scale(1)}}.flag-stage-burst{pointer-events:none;background:radial-gradient(circle at 20% 30%,#ff6b6b 0 5px,#0000 6px),radial-gradient(circle at 70% 20%,#ffd93d 0 5px,#0000 6px),radial-gradient(circle at 40% 75%,#6bcb77 0 5px,#0000 6px),radial-gradient(circle at 85% 55%,#4d96ff 0 5px,#0000 6px),radial-gradient(circle at 55% 40%,#ff8fab 0 4px,#0000 5px);animation:.9s ease-out forwards confettiPop;position:absolute;inset:-30%}.flag-stage-badge{color:#fff;width:48px;height:48px;box-shadow:var(--shadow);z-index:2;border-radius:50%;justify-content:center;align-items:center;font-size:1.6rem;animation:.4s starPop;display:flex;position:absolute;top:-12px;right:-8px}.flag-stage-badge--ok{background:linear-gradient(135deg,#2ecc71,#27ae60)}.flag-stage-badge--no{background:linear-gradient(135deg,#ff6b6b,#e74c3c)}.quiz-feedback{text-align:center;border-radius:14px;max-width:90%;margin:0 auto 8px;padding:8px 14px;font-size:1.15rem;animation:.35s cardPop}.quiz-feedback--ok{color:#1b7a3d;background:#d4f8e0}.quiz-feedback--bad{color:#b33;background:#ffe0e0}.quiz-reveal{text-align:center;margin:0 0 10px;font-size:1.05rem}.quiz-options{gap:10px;width:100%;margin-top:8px;display:grid}.quiz-options--3,.quiz-options--4{grid-template-columns:1fr}.quiz-options--6{grid-template-columns:1fr 1fr}@media (width>=480px){.quiz-options--3,.quiz-options--4{grid-template-columns:1fr 1fr}}.quiz-opt{box-shadow:var(--shadow);text-align:left;color:var(--text);background:#fff;border:3px solid #0000;border-radius:18px;align-items:center;gap:12px;padding:14px 16px;font-size:1.05rem;transition:transform .12s,background .2s,outline .2s;animation:.35s both fadeIn;display:flex}.quiz-opt:active:not(:disabled){transform:scale(.97)}.quiz-opt:hover:not(:disabled){border-color:#4f7cff55;transform:translateY(-1px)}.quiz-opt-letter{color:#fff;background:linear-gradient(135deg,#4f7cff,#7b5cff);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1rem;display:flex}.quiz-opt-label{flex:1;line-height:1.2}.quiz-opt--correct{background:#d4f8e0;border-color:#2ecc71}.quiz-opt--correct .quiz-opt-letter{background:#2ecc71}.quiz-opt--wrong{background:#ffe0e0;border-color:#ff6b6b;animation:.4s shake}.quiz-opt--wrong .quiz-opt-letter{background:#ff6b6b}.quiz-opt--dim{opacity:.4}.quiz-body{flex-direction:column;align-items:center;gap:16px;display:flex}.quiz-prompt{text-align:center;margin:0;font-size:1.15rem}.capital-hero{background:var(--card);box-shadow:var(--shadow);border-radius:24px;flex-direction:column;align-items:center;gap:8px;min-width:min(320px,90vw);padding:22px 28px;display:flex}.capital-hero-label{font-size:2rem}.capital-hero-name{color:var(--primary-dark);text-align:center;font-size:clamp(1.5rem,5vw,2rem);line-height:1.2}.options-grid{flex-direction:column;gap:10px;width:100%;display:flex}.option-btn{background:var(--card);width:100%;box-shadow:var(--shadow);color:var(--text);text-align:center;border-radius:16px;padding:16px 18px;font-size:1.1rem;transition:transform .12s,background .2s}.option-btn:active:not(:disabled){transform:scale(.98)}.option-btn--correct{outline:3px solid var(--success);background:#d4f8e0}.option-btn--wrong{outline:3px solid var(--danger);background:#ffe0e0;animation:.4s shake}.option-btn--dim{opacity:.45}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.flag-pole-wrap{justify-content:center;align-items:flex-end;gap:4px;min-height:120px;display:flex}.flag-pole{flex-direction:column;justify-content:flex-start;align-items:center;height:140px;display:flex}.flag-pole-stick{background:linear-gradient(90deg,#c4a35a,#e8d48b,#c4a35a);border-radius:3px;flex:1;width:6px}.flag-pole-ball{background:gold;border-radius:50%;width:14px;height:14px;margin-bottom:-4px;box-shadow:0 2px 6px #0003}.flag{transform-origin:0;filter:drop-shadow(0 6px 12px #00000026);justify-content:center;align-items:center;display:flex;position:relative}.flag-emoji{-webkit-user-select:none;user-select:none;line-height:1;display:block}.flag--sm .flag-emoji{font-size:2rem}.flag--md .flag-emoji{font-size:3.5rem}.flag--lg .flag-emoji{font-size:5rem}.flag--xl .flag-emoji{font-size:7rem}.flag--idle{animation:2.4s ease-in-out infinite wave}.flag--correct{animation:.6s popCorrect,2.4s ease-in-out .6s infinite wave}.flag--wrong{filter:grayscale(.4)drop-shadow(0 4px 8px #0000001a);animation:.7s forwards deflate}.flag--raising{animation:1s forwards raiseFlag,2.4s ease-in-out 1s infinite wave}@keyframes wave{0%,to{transform:rotate(-3deg)skewY(-1deg)}50%{transform:rotate(4deg)skewY(1deg)translateY(-4px)}}@keyframes popCorrect{0%{transform:scale(1)}40%{transform:scale(1.2)}to{transform:scale(1)}}@keyframes deflate{0%{transform:scale(1)rotate(0)}40%{transform:scale(.85)rotate(-8deg)}to{transform:scale(.9)rotate(-4deg)}}@keyframes raiseFlag{0%{opacity:.4;transform:translateY(40px)scale(.7)}to{opacity:1;transform:translateY(0)scale(1)}}.confetti{pointer-events:none;background:radial-gradient(circle at 20% 30%,#ff6b6b 0 4px,#0000 5px),radial-gradient(circle at 70% 20%,#ffd93d 0 4px,#0000 5px),radial-gradient(circle at 40% 70%,#6bcb77 0 4px,#0000 5px),radial-gradient(circle at 80% 60%,#4d96ff 0 4px,#0000 5px),radial-gradient(circle at 55% 40%,#ff8fab 0 3px,#0000 4px);animation:.9s ease-out forwards confettiPop;position:absolute;inset:-20px}@keyframes confettiPop{0%{opacity:1;transform:scale(.5)}to{opacity:0;transform:scale(1.4)}}.stars{gap:4px;display:inline-flex}.stars--sm .star{font-size:.9rem}.stars--md .star{font-size:1.2rem}.stars--lg .star{font-size:2rem}.star--on{animation:.4s starPop}@keyframes starPop{0%{transform:scale(0)}70%{transform:scale(1.3)}to{transform:scale(1)}}.result-card{background:var(--card);text-align:center;box-shadow:var(--shadow);border-radius:28px;flex-direction:column;align-items:center;gap:12px;padding:28px 20px;display:flex}.result-card h2{margin:0;font-size:1.6rem}.result-score{color:var(--muted);margin:0}.result-earn{margin:0;font-size:1.1rem}.result-flag{margin:8px 0}.card-pop{animation:.45s cubic-bezier(.34,1.4,.64,1) cardPop}@keyframes cardPop{0%{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}.pairs-grid{gap:10px;width:100%;display:grid}.pairs-grid--4{grid-template-columns:repeat(4,1fr)}.pairs-grid--6{grid-template-columns:repeat(3,1fr)}.pairs-grid--8{grid-template-columns:repeat(4,1fr)}.pair-card{aspect-ratio:1;color:#fff;box-shadow:var(--shadow);background:linear-gradient(145deg,#4f7cff,#7b5cff);border-radius:16px;justify-content:center;align-items:center;padding:6px;font-size:1.5rem;transition:transform .2s;display:flex}.pair-card--up{background:var(--card);color:var(--text)}.pair-card--match{outline:3px solid var(--success);background:#e8fff0}.pair-back{opacity:.9;font-size:1.6rem}.pair-flag{font-size:2rem}.pair-name{text-align:center;word-break:break-word;font-size:.72rem;line-height:1.15}.puzzle-layout{flex-direction:column;align-items:center;gap:20px;width:100%;display:flex}.puzzle-board{aspect-ratio:1;background:#dfe7f5;border-radius:16px;gap:4px;width:min(280px,80vw);padding:6px;display:grid;box-shadow:inset 0 2px 8px #00000014}.puzzle-slot{background:#ffffff8c;border:2px dashed #4f7cff59;border-radius:8px;position:relative;overflow:hidden}.puzzle-slot--filled{border-style:solid;border-color:var(--success)}.puzzle-slot--wrong{background:#ffe0e0;animation:.35s shake}.puzzle-tray{flex-wrap:wrap;justify-content:center;gap:10px;width:100%;display:flex}.puzzle-piece{background:var(--card);width:72px;height:72px;box-shadow:var(--shadow);touch-action:none;border-radius:12px;padding:0;position:relative;overflow:hidden}.puzzle-piece--placed{width:100%;height:100%;box-shadow:none;border-radius:0}.puzzle-emoji-slice{pointer-events:none;justify-content:center;align-items:center;line-height:1;display:flex;position:absolute;top:0;left:0}.puzzle-preview{text-align:center;margin-top:12px}.continent-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.continent-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;border:3px solid #0000;flex-direction:column;align-items:center;gap:6px;padding:18px 12px;display:flex}.continent-emoji{font-size:2.2rem}.collection-section{margin-bottom:20px}.collection-section h2{margin:0 0 10px;font-size:1.15rem}.collection-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.collect-card{background:var(--card);box-shadow:var(--shadow);border-radius:14px;flex-direction:column;align-items:center;gap:4px;min-height:100px;padding:10px 6px;display:flex}.collect-card--locked{opacity:.55;filter:grayscale(.3)}.collect-flag{font-size:2rem}.collect-name{text-align:center;font-size:.72rem;line-height:1.15}.collect-cap{text-align:center;font-size:.65rem}.ach-list{flex-direction:column;gap:10px;display:flex}.ach-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);align-items:center;gap:14px;padding:14px 16px;display:flex}.ach-card--off{opacity:.55}.ach-card p{margin:2px 0 0;font-size:.85rem}.ach-emoji{font-size:2rem}.settings-block{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:14px;padding:16px}.settings-block h2{margin:0 0 12px;font-size:1.1rem}.diff-options{flex-direction:column;gap:8px;display:flex}.diff-btn{text-align:left;background:#f0f4ff;border:2px solid #0000;border-radius:14px;flex-direction:column;gap:2px;padding:12px 14px;display:flex}.diff-btn--active{border-color:var(--primary);background:#e8efff}.toggle-row{justify-content:space-between;align-items:center;gap:12px;padding:10px 0;font-size:1rem;display:flex}.toggle-row input{width:22px;height:22px;accent-color:var(--primary)}.settings-sub{margin:14px 0 8px;font-size:1rem}.voice-select{width:100%;color:var(--text);background:#f7f9ff;border:2px solid #d0daf0;border-radius:14px;padding:12px 14px;font-family:inherit;font-size:.95rem;font-weight:700}.voice-warn{color:#c0392b;margin:0 0 8px;font-size:.9rem}.voice-hint{margin:10px 0 0;font-size:.82rem;line-height:1.35}.confirm-box{text-align:center}@media (width>=600px){.app-shell{padding-top:24px}.pairs-grid--4,.collection-grid{grid-template-columns:repeat(4,1fr)}}