@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap";:root{--bg-main:#0f172a;--bg-card:#1e293bb3;--text-main:#f8fafc;--text-muted:#94a3b8;--primary:#3b82f6;--primary-hover:#2563eb;--secondary:#8b5cf6;--success:#10b981;--danger:#ef4444;--border:#ffffff1a;--border-hover:#fff3}*{box-sizing:border-box;margin:0;padding:0;font-family:Outfit,sans-serif}body{background-color:var(--bg-main);color:var(--text-main);background:radial-gradient(circle at 0 0,#1e1b4b,#0f172a);min-height:100vh;overflow-x:hidden}.glass-panel{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:16px;box-shadow:0 4px 30px #0000001a}.glass-panel:hover{border-color:var(--border-hover);transition:all .3s;transform:translateY(-2px);box-shadow:0 8px 30px #0003}.app-layout{flex-direction:column;min-height:100vh;display:flex}.navbar{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;background:#0f172acc;justify-content:space-between;align-items:center;padding:1rem 2rem;display:flex;position:sticky;top:0}.navbar-brand{font-size:1.5rem;font-weight:700;text-decoration:none}.brand-logo{object-fit:contain;width:48px;height:48px;transition:all .3s}.brand-text-container{flex-direction:column;margin-left:2px;display:flex}.brand-title{background:linear-gradient(90deg,#3b82f6,#8b5cf6);-webkit-text-fill-color:transparent;letter-spacing:1px;-webkit-background-clip:text;font-size:1.4rem;font-weight:700;line-height:1}.brand-subtitle{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.75rem;font-weight:700}.nav-links{gap:1.5rem;display:flex}.nav-link{color:var(--text-main);font-weight:500;text-decoration:none;transition:color .2s}.nav-link:hover,.nav-link.active{color:var(--primary)}.main-content{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:2rem;animation:.5s ease-out fadeIn}.grid-cards{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-top:2rem;display:grid}h1{margin-bottom:.5rem;font-size:2.5rem;font-weight:700}h2{margin-bottom:1rem;font-size:1.8rem;font-weight:600}p.subtitle{color:var(--text-muted);margin-bottom:2rem;font-size:1.1rem}.subject-card{text-align:center;cursor:pointer;color:var(--text-main);flex-direction:column;align-items:center;padding:2rem;text-decoration:none;display:flex}.subject-icon{border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;margin-bottom:1rem;font-size:2rem;display:flex}.btn{cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-outline{border:1px solid var(--primary);color:var(--primary);background:0 0}.btn-outline:hover{background:#3b82f61a}.quiz-container{max-width:800px;margin:0 auto}.option-btn{text-align:left;background:var(--bg-card);border:1px solid var(--border);width:100%;color:var(--text-main);cursor:pointer;border-radius:12px;margin-bottom:1rem;padding:1rem 1.5rem;font-size:1.1rem;transition:all .2s}.option-btn:hover{border-color:var(--primary);background:#ffffff0d}.option-btn.correct{border-color:var(--success);background:#10b98133}.option-btn.wrong{border-color:var(--danger);background:#ef444433}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-10px)}to{transform:translateY(0)}}.mascot-float{animation:3s ease-in-out infinite float}.progress-bg{background:var(--bg-card);border-radius:4px;width:100%;height:8px;margin-top:1rem;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--primary), var(--secondary));border-radius:4px;height:100%;transition:width .5s ease-out}.banner-fire{background:linear-gradient(45deg,#2a0800,#5c1600,#801a00)!important;border-color:#ff4500!important;box-shadow:0 10px 30px #ff450066!important}.banner-galaxy{background:linear-gradient(45deg,#090014,#1c0040,#380080)!important;border-color:#9d00ff!important;box-shadow:0 10px 30px #9d00ff66!important}.banner-matrix{background:linear-gradient(45deg,#001405,#031,#004d1a)!important;border-color:#0f5!important;box-shadow:0 10px 30px #0f56!important}@media (width<=768px){.navbar{flex-wrap:wrap;justify-content:space-between;padding:.8rem 1rem}.nav-text{display:none}.brand-logo{width:36px;height:36px}.brand-title{font-size:1.1rem}.brand-subtitle{display:none}.stats-container{justify-content:center;gap:1rem;width:100%;margin-top:.5rem;padding:.5rem}.nav-links{gap:.8rem}.main-content{padding:1rem}}.challenge-icon-box{width:48px;height:48px}@media (width<=768px){.challenge-card{flex-wrap:nowrap!important;gap:.5rem!important;padding:.8rem!important}.challenge-icon-box{width:36px;height:36px}.challenge-icon-box svg{width:20px;height:20px}.challenge-card h3{-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.2;display:-webkit-box;overflow:hidden;font-size:.9rem!important}.challenge-card .btn{padding:.4rem .8rem!important;font-size:.85rem!important}}.course-nav-btn{padding:.8rem 1.5rem;font-size:1.2rem}@media (width<=768px){.course-nav-btn{justify-content:center;width:100%;padding:.6rem 1rem!important;font-size:1rem!important}.course-nav-container{flex-direction:column-reverse}}.course-title{font-size:1.8rem}@media (width<=768px){.course-title{font-size:1.3rem}}.end-game-btn{padding:.8rem 1.5rem;font-size:1.1rem}@media (width<=768px){.end-game-btn{justify-content:center;width:100%}.end-game-btn-container{flex-direction:column;width:100%}.navbar{padding:.8rem 1rem}.brand-logo{width:36px;height:36px}.brand-title{font-size:1.1rem}.brand-subtitle{margin-top:1px;font-size:.65rem;display:block}.nav-links{gap:.8rem}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}