@import "https://fonts.googleapis.com/css2?family=Lilita+One&family=Nunito:wght@400;700;800&family=Space+Mono:wght@400;700&display=swap";.user-email[data-v-9f62aed9]{color:var(--accent-purple);text-overflow:ellipsis;white-space:nowrap;max-width:120px;font-family:Nunito,sans-serif;font-size:11px;overflow:hidden}.nav-logout[data-v-9f62aed9]{letter-spacing:1px;color:var(--text-muted);text-transform:uppercase;cursor:pointer;font-family:Space Mono,monospace;font-size:12px;transition:color .15s}.nav-logout[data-v-9f62aed9]:hover{color:var(--accent-pink)}.nav-login[data-v-9f62aed9]{color:var(--accent-teal)!important}:root{--bg-page:#0c0f1a;--bg-glass:#94a3b814;--glass-border:#94a3b82e;--glass-blur:12px;--text-primary:#f3f4f6;--text-secondary:#9ca3af;--text-muted:#6b7280;--accent-pink:#ff6b9d;--accent-teal:#4ecdc4;--accent-green:#a8e6cf;--accent-purple:#c9b1ff;--accent-yellow:#ffe66d;--duration-instant:.1s;--duration-fast:.2s;--duration-normal:.3s;--duration-slow:.5s;--duration-celebration:.8s;--ease-bounce:cubic-bezier(.34, 1.56, .64, 1);--ease-smooth:cubic-bezier(.4, 0, .2, 1)}@property --angle{syntax:"<angle>";inherits:false;initial-value:0deg}@keyframes rotate-border{to{--angle:360deg}}@keyframes pulse-glow{0%,to{box-shadow:0 0 #4ecdc459}50%{box-shadow:0 0 20px 6px #4ecdc433}}@keyframes fade-in-up{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.glass{background:var(--bg-glass);-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:18px}.fade-in{opacity:0;transition:opacity .6s,transform .6s;transform:translateY(24px)}.fade-in.visible{opacity:1;transform:translateY(0)}.gradient-text{background:linear-gradient(135deg, var(--accent-teal), var(--accent-purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.glow-border{background:conic-gradient(from var(--angle,0deg), var(--accent-teal), var(--accent-pink), var(--accent-purple), var(--accent-teal));border-radius:22px;padding:3px;animation:4s linear infinite rotate-border;position:relative}.glow-border>*{border-radius:20px}.cta-pulse{animation:2.5s ease-in-out infinite pulse-glow}@media (prefers-reduced-motion:reduce){.fade-in{opacity:1;transition:none;transform:none}.glow-border{animation:none}.cta-pulse{animation:none;box-shadow:0 4px 16px #4ecdc440}}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-page);color:var(--text-primary);font-family:Nunito,sans-serif}a{color:inherit;text-decoration:none}.navbar{-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--glass-border);z-index:100;background:#0c0f1acc;justify-content:space-between;align-items:center;padding:16px 24px;display:flex;position:sticky;top:0}.navbar .logo{color:var(--text-primary);font-family:Lilita One,cursive;font-size:22px}.navbar nav{gap:20px;display:flex}.navbar nav a{letter-spacing:1px;color:var(--text-muted);text-transform:uppercase;font-family:Space Mono,monospace;font-size:12px;transition:color .15s}.navbar nav a:hover,.navbar nav a.router-link-active{color:var(--accent-teal)}.page{max-width:760px;margin:0 auto;padding:32px 20px}.page-wide{max-width:960px;margin:0 auto;padding:32px 20px}.card{border:1px solid var(--glass-border);background:#fff;border-radius:18px;display:flex;overflow:hidden;box-shadow:0 4px 24px #0000004d}.card.card-featured{background:#fff}.card.easy{border-left:4px solid var(--accent-green)}.card.medium{border-left:4px solid var(--accent-yellow)}.card.hard{border-left:4px solid var(--accent-pink)}.card-illustration{background:#f5f0e8;flex:0 0 45%;order:2;justify-content:center;align-items:center;min-height:280px;padding:0;display:flex}.card-illustration img{object-fit:cover;border-radius:0;width:100%;height:100%}.card-body{flex:1;order:1;min-width:0;padding:16px 18px 18px}@media (width<=600px){.card{flex-direction:column}.card.easy{border-left:none;border-top:4px solid var(--accent-green)}.card.medium{border-left:none;border-top:4px solid var(--accent-yellow)}.card.hard{border-left:none;border-top:4px solid var(--accent-pink)}.card-illustration{flex:none;order:-1;min-height:auto;padding:8px}.card-illustration img{object-fit:contain;border-radius:12px;max-height:180px}}.card-title{color:#2a2a3a;margin-bottom:4px;font-family:Lilita One,cursive;font-size:26px;line-height:1.15}.card-number{color:#ccc;letter-spacing:1px;margin-bottom:10px;font-family:Space Mono,monospace;font-size:9px}.meta-row{flex-wrap:wrap;gap:6px;margin-bottom:10px;display:flex}.tag{letter-spacing:.5px;border-radius:20px;padding:3px 10px;font-family:Space Mono,monospace;font-size:9px;font-weight:700}.tag.cat{color:#1565c0;background:#e3f2fd}.tag.diff-easy{color:#2e7d32;background:#e8f5e9}.tag.diff-medium{color:#f57f17;background:#fff8e1}.tag.diff-hard{color:#c62828;background:#fce4ec}.tag.skill{color:#7b1fa2;background:#f3e5f5}.question{color:#444;margin-bottom:12px;font-size:15px;line-height:1.65}.diagram-wrap{background:#f9f6ee;border:1.5px solid #94a3b840;border-radius:14px;justify-content:center;margin-bottom:16px;padding:6px;display:flex;overflow:hidden;box-shadow:inset 0 1px 4px #00000026}.diagram-wrap :deep(svg){max-width:100%;display:block}.choices{grid-template-columns:1fr 1fr;gap:8px;display:grid}.choice{cursor:pointer;-webkit-user-select:none;user-select:none;background:#f8f6f0;border:2px solid #e8e4da;border-radius:12px;align-items:center;gap:10px;padding:11px 14px;transition:all .15s;display:flex}.choice:hover{background:#f0faf0;border-color:#4caf50;transform:translateY(-2px)}.choice .letter{color:var(--bg-page);background:var(--text-muted);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-family:Nunito,sans-serif;font-size:13px;font-weight:800;display:flex}.card.easy .choice .letter{background:var(--accent-green)}.card.medium .choice .letter{background:var(--accent-yellow)}.card.hard .choice .letter{background:var(--accent-pink)}.choice .val{color:#2a2a3a;font-size:16px;font-weight:700}.choice.selected{border-color:var(--accent-teal);background:#e0f7f5}.choice.correct{border-color:var(--accent-green);background:#e8f5e9;box-shadow:0 0 12px #a8e6cf4d}.choice.incorrect{border-color:var(--accent-pink);background:#fce4ec}.choice.disabled{pointer-events:none;opacity:.5}.btn{cursor:pointer;border:none;border-radius:14px;padding:14px 32px;font-family:Nunito,sans-serif;font-size:16px;font-weight:800;transition:all .15s}.btn-primary{background:var(--accent-teal);color:var(--bg-page)}.btn-primary:hover{background:#3dbdb5;transform:translateY(-1px)}.btn-secondary{background:var(--accent-pink);color:var(--bg-page)}.btn-secondary:hover{background:#e85a8a;transform:translateY(-1px)}.btn-ghost{color:#888;letter-spacing:1px;background:0 0;border:1.5px solid #ddd;border-radius:20px;padding:8px 20px;font-family:Space Mono,monospace;font-size:11px}.btn-ghost:hover{color:#666;border-color:#999}.score-card{text-align:center;padding:40px 24px}.score-card .score-number{background:linear-gradient(135deg, var(--accent-teal), var(--accent-purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-family:Lilita One,cursive;font-size:64px}.score-card .score-label{color:var(--text-secondary);margin-top:8px;font-size:18px}@keyframes card-enter{0%{opacity:0;transform:translateY(80px)scale(.95)}60%{opacity:1;transform:translateY(-6px)scale(1.01)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes choice-enter{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes result-bounce{0%{opacity:0;transform:scale(.5)}60%{transform:scale(1.1)}to{opacity:1;transform:scale(1)}}@keyframes result-shake{0%,to{transform:translate(0)}15%{transform:translate(-6px)}30%{transform:translate(5px)}45%{transform:translate(-3px)}60%{transform:translate(2px)}}@keyframes card-exit{to{opacity:0;transform:translate(-120%)rotate(-3deg)}}@keyframes streak-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}@keyframes streak-burst{0%{transform:scale(1)}30%{transform:scale(1.3)}to{transform:scale(1)}}@keyframes hint-fade{0%{opacity:0}to{opacity:.5}}@keyframes glow-breathe{0%,to{opacity:.6}50%{opacity:1}}@media (prefers-reduced-motion:reduce){.play-card,.card-body,.choice,.result-label,.firework-particle,.next-card-btn,.streak-current{transition:none!important;animation:none!important}.card-illustration{transition:none!important}}