@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap";:root{--bg-primary:#08090c;--bg-secondary:#0f111a;--bg-tertiary:#171926;--accent-indigo:#6366f1;--accent-indigo-glow:#6366f133;--accent-violet:#8b5cf6;--accent-violet-glow:#8b5cf633;--accent-cyan:#06b6d4;--accent-cyan-glow:#06b6d433;--accent-rose:#f43f5e;--accent-rose-glow:#f43f5e33;--accent-emerald:#10b981;--accent-emerald-glow:#10b98133;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--border-color:#ffffff0d;--border-hover:#ffffff1f;--glass-bg:#0f111ab3;--glass-border:#ffffff14;--glass-blur:blur(16px);--shadow-sm:0 4px 12px #00000080;--shadow-md:0 12px 32px #0009;--shadow-lg:0 20px 48px #000c;--shadow-glow:0 0 30px #6366f140;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-xl:30px}*{box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}body{background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;position:relative;overflow-x:hidden}.bg-blobs{z-index:-1;pointer-events:none;width:100%;height:100%;position:fixed;top:0;left:0;overflow:hidden}.blob{filter:blur(100px);opacity:.15;border-radius:50%;animation:20s infinite alternate float;position:absolute}.blob-1{background:var(--accent-indigo);width:400px;height:400px;animation-duration:25s;top:-100px;right:-100px}.blob-2{background:var(--accent-violet);width:500px;height:500px;animation-duration:30s;animation-delay:-5s;bottom:-150px;left:-150px}.blob-3{background:var(--accent-cyan);width:350px;height:350px;animation-duration:20s;animation-delay:-10s;top:40%;left:30%}@keyframes float{0%{transform:translate(0)scale(1)}50%{transform:translate(60px,40px)scale(1.1)}to{transform:translate(-40px,80px)scale(.95)}}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);box-shadow:var(--shadow-md);border-radius:var(--radius-md);transition:all .3s cubic-bezier(.4,0,.2,1)}.glass-panel:hover{border-color:var(--border-hover);box-shadow:var(--shadow-lg)}.glass-card{border-radius:var(--radius-md);background:#ffffff05;border:1px solid #ffffff0d;padding:1.5rem;transition:all .3s}.glass-card:hover{background:#ffffff0a;border-color:#ffffff1a;transform:translateY(-4px)}button{color:var(--text-primary);cursor:pointer;outline:none;font-family:inherit;font-weight:500;transition:all .2s cubic-bezier(.4,0,.2,1)}.btn-primary{background:linear-gradient(135deg, var(--accent-indigo), var(--accent-violet));color:#fff;border-radius:var(--radius-md);border:none;padding:.75rem 1.5rem;font-weight:600;box-shadow:0 4px 15px #6366f166}.btn-primary:hover{filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 6px 20px #6366f199}.btn-primary:active{transform:translateY(0)}.btn-secondary{color:var(--text-primary);border:1px solid var(--glass-border);border-radius:var(--radius-md);background:#ffffff0f;padding:.75rem 1.5rem;font-weight:600}.btn-secondary:hover{background:#ffffff1a;border-color:#ffffff26;transform:translateY(-1px)}.btn-danger{color:var(--accent-rose);border-radius:var(--radius-md);background:#f43f5e1a;border:1px solid #f43f5e33;padding:.75rem 1.5rem;font-weight:600}.btn-danger:hover{background:#f43f5e33;border-color:#f43f5e66}.input-field{border:1px solid var(--glass-border);border-radius:var(--radius-md);width:100%;color:var(--text-primary);background:#0000004d;padding:.75rem 1rem;font-size:1rem;transition:all .3s}.input-field:focus{border-color:var(--accent-indigo);background:#00000080;outline:none;box-shadow:0 0 12px #6366f133}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--radius-sm);border:2px solid var(--bg-primary)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.gradient-text{background:linear-gradient(135deg, #fff, var(--text-secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text}.gradient-accent-text{background:linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo), var(--accent-violet));-webkit-text-fill-color:transparent;-webkit-background-clip:text}.flashcards-container{flex-direction:column;align-items:center;gap:2rem;width:100%;max-width:800px;margin:0 auto;display:flex}.card-scene{perspective:1200px;aspect-ratio:1.6;cursor:pointer;width:100%;max-width:650px}@media (width<=600px){.card-scene{aspect-ratio:1.3}}.flashcard-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.4,0,.2,1);position:relative}.flashcard-inner.is-flipped{transform:rotateY(180deg)}.card-face{backface-visibility:hidden;border-radius:var(--radius-lg);width:100%;height:100%;box-shadow:var(--shadow-lg);border:1px solid var(--glass-border);flex-direction:column;justify-content:center;align-items:center;padding:2.5rem;display:flex;position:absolute;top:0;left:0}.card-front{color:var(--text-primary);background:linear-gradient(145deg,#171926e6,#0f111ae6)}.card-back{color:var(--text-primary);background:linear-gradient(145deg,#6366f114,#8b5cf614);border-color:#6366f133;transform:rotateY(180deg)}.card-front:before{content:"";background:linear-gradient(90deg, var(--accent-indigo), var(--accent-cyan));border-radius:var(--radius-lg) var(--radius-lg) 0 0;height:4px;position:absolute;top:0;left:0;right:0}.card-back:before{content:"";background:linear-gradient(90deg, var(--accent-violet), var(--accent-rose));border-radius:var(--radius-lg) var(--radius-lg) 0 0;height:4px;position:absolute;top:0;left:0;right:0}.match-grid{grid-template-columns:repeat(4,1fr);gap:1rem;width:100%;max-width:800px;margin:0 auto;display:grid}@media (width<=768px){.match-grid{grid-template-columns:repeat(3,1fr)}}@media (width<=480px){.match-grid{grid-template-columns:repeat(2,1fr)}}.match-card{aspect-ratio:1.5;text-align:center;border-radius:var(--radius-md);border:1px solid var(--glass-border);color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;background:#ffffff05;justify-content:center;align-items:center;padding:1rem;font-size:1rem;font-weight:500;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.match-card:hover{background:#ffffff0d;border-color:#ffffff26;transform:scale(1.03)}.match-card.selected{background:var(--accent-indigo-glow);border-color:var(--accent-indigo);transform:scale(1.05);box-shadow:0 0 15px #6366f14d}.match-card.matched{visibility:hidden;opacity:0;pointer-events:none;transition:opacity .5s,transform .5s;transform:scale(.8)}.match-card.error{background:var(--accent-rose-glow);border-color:var(--accent-rose);animation:.4s ease-in-out shake}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.progress-bar-container{border-radius:var(--radius-sm);background:#ffffff0d;width:100%;height:6px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg, var(--accent-indigo), var(--accent-violet));height:100%;transition:width .3s cubic-bezier(.4,0,.2,1)}