:root{--primary-red: #ff4d6d;--secondary-pink: #ff85a1;--accent-red: #ff6b81;--neon-cyan: #00f0ff;--neon-magenta: #ff00ff;--neon-lime: #00ff00;--neon-purple: #b300ff;--dark-bg: #0a0e27;--card-dark: #1a1f3a;--darker-bg: #050710;--white: #ffffff;--light-bg: #f8f9ff;--light-gray: #e8ecf1;--dark-gray: #1a1a2e;--text-primary: #ffffff;--text-secondary: #b0b8d4;--card-bg: #ffffff;--card-border: #ffd6dc;--card-shadow: rgba(255, 77, 109, .4);--glow-shadow: 0 0 20px rgba(255, 77, 109, .6);--success: #00ff00;--warning: #ffaa00;--error: #ff0000;--info: #00f0ff}a,a:hover{color:#fff}header{background:linear-gradient(135deg,#0a0e27,#1a1f3a,#050710);color:#fff;padding:1rem 2.5rem;display:grid;grid-template-columns:auto 1fr auto;grid-template-rows:auto auto;align-items:center;gap:.5rem 2rem;overflow-x:hidden;z-index:99998}header:before,.site-header:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,77,109,.1) 0%,transparent 70%);animation:headerGlow 4s ease-in-out infinite;pointer-events:none}@media(max-width:768px){header:before,.site-header:before{width:100%;height:100%;top:0;left:0;max-width:100%;color:#fff}}@keyframes headerGlow{0%,to{transform:scale(1) translate(0)}50%{transform:scale(1.1) translate(-5px,-5px)}}.header-logo-wrapper{display:flex;align-items:center;z-index:1;grid-column:1;grid-row:1}.header-logo-wrapper .logo-link{display:inline-flex;align-items:center;text-decoration:none;color:#fff}header img{width:60px;height:auto;filter:drop-shadow(0 0 15px rgba(255,77,109,.8));transition:all .4s cubic-bezier(.34,1.56,.64,1);z-index:1;padding:.4rem;border-radius:8px;border:2px solid rgba(255,77,109,.4);cursor:pointer}header img:hover{transform:scale(1.15) rotate(8deg);filter:drop-shadow(0 0 25px rgba(255,77,109,1));border-color:#ff4d6dcc}.header-nav{display:flex;gap:.75rem;align-items:center;grid-column:3;grid-row:1;justify-content:space-between;color:#fff;background-color:linear-gradient(135deg,#0a0e27 0%,#1a1f3a 50%,#0a0e27 100%)}.header-navlink{display:flex;gap:10px;color:#fff;margin-left:auto}.nav-link{text-decoration:none;color:#fff;font-weight:600;background:transparent;border:none;padding:.5rem;border-radius:0;display:flex;align-items:center;gap:.25rem;transition:all .3s cubic-bezier(.4,.2,.2,1);position:relative;overflow:hidden;white-space:nowrap;font-size:.85rem;flex-shrink:0}.nav-link:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s ease}.nav-link:hover:before{left:100%}.nav-link:hover{background:transparent;border-color:transparent;transform:none;box-shadow:none;text-shadow:none;filter:none}.nav-link{position:relative;text-decoration:none;color:#fff;padding:10px 16px}.nav-link{position:relative}.nav-link:after{content:"";position:absolute;left:50%;bottom:1px;width:70%;height:4px;transform:translate(-50%);background:linear-gradient(90deg,#e50965);border-radius:999px;opacity:.85;transition:width .25s ease,height .25s ease,background .25s ease,opacity .25s ease,box-shadow .25s ease}.nav-link:hover:after,.nav-link.active:after{width:82%;height:4px;opacity:1;background:linear-gradient(90deg,#ff5fa3,#ffd3e5);box-shadow:0 0 8px #ff8cbe59}.nav-link:hover{color:#ffe6ef}.hamburger-btn{display:none;background:transparent;border:2px solid transparent;color:#fff;width:45px;height:45px;border-radius:8px;cursor:pointer;font-size:1.4rem;z-index:1001;transition:all .3s cubic-bezier(.4,0,.2,1);align-items:center;justify-content:center;box-shadow:none;padding:0;margin:0}.hamburger-btn:before{display:none}.hamburger-btn:hover{background:transparent;border-color:transparent;box-shadow:none;transform:none;filter:none}.hamburger-btn:active{transform:scale(.95)}.nav-icon{font-size:1rem;animation:float 2s ease-in-out infinite}.nav-link span{font-weight:600}@media(max-width:768px){.mobile-nav{position:fixed!important;top:0!important;right:0!important;width:280px!important;height:100vh!important;background:#0a0e27!important;z-index:999999!important;padding-top:80px!important;display:flex!important;flex-direction:column!important}.mobile-nav{right:0!important}.mobile-nav .nav-link{color:#fff!important;-webkit-text-fill-color:#fff!important;opacity:1!important;visibility:visible!important;display:flex!important;padding:14px 20px!important;text-decoration:none!important;font-size:16px!important}.mobile-nav .nav-link span{color:#fff!important;-webkit-text-fill-color:#fff!important}.mobile-nav .nav-icon{color:#fff!important}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-3px)}}header h1{grid-column:1 / -1;grid-row:2;text-align:center;margin-top:.25rem;font-size:2.2rem;font-weight:900;z-index:1;background:linear-gradient(135deg,#ff4d6d,#ff85a1,#ff6b81);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:titlePulse 3s ease-in-out infinite;color:#fff}.nav-link{color:#fff}@keyframes titlePulse{0%,to{filter:brightness(1) drop-shadow(0 0 10px rgba(255,77,109,.5))}50%{filter:brightness(1.1) drop-shadow(0 0 20px rgba(255,77,109,.8))}}header p{grid-column:1 / -1;grid-row:3;text-align:center;font-size:.9rem;opacity:.85;z-index:1;color:#b0b8d4;font-weight:500;letter-spacing:1px;margin-bottom:.25rem}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#0a0e27,#1a1f3a,#050710);color:var(--text-primary);line-height:1.6;transition:none;position:relative;overflow-x:hidden;display:flex;flex-direction:column;background-attachment:fixed}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background-image:linear-gradient(0deg,transparent 24%,rgba(255,77,109,.05) 25%,rgba(255,77,109,.05) 26%,transparent 27%,transparent 74%,rgba(255,77,109,.05) 75%,rgba(255,77,109,.05) 76%,transparent 77%,transparent),linear-gradient(90deg,transparent 24%,rgba(255,77,109,.05) 25%,rgba(255,77,109,.05) 26%,transparent 27%,transparent 74%,rgba(255,77,109,.05) 75%,rgba(255,77,109,.05) 76%,transparent 77%,transparent);background-size:50px 50px;background-position:0 0,0 0;animation:gridMove 20s linear infinite;pointer-events:none;z-index:0;opacity:.3}@keyframes gridMove{0%{background-position:0 0,0 0}to{background-position:50px 50px,50px 50px}}body>*{position:relative;z-index:1}.Dash{align-items:end}.course-name{padding:3rem 2rem;text-align:center;display:flex;flex-wrap:wrap;justify-content:center;gap:2rem}.search-container{display:flex;justify-content:center;align-items:center;padding:.5rem 1.5rem 1.5rem}.search-input{width:100%;max-width:620px;min-width:0;padding:.85rem 2rem .85rem 2.8rem;font-size:1rem;font-family:inherit;color:var(--text-primary);background:linear-gradient(135deg,#1a1f3ae6,#242a45e6);border:2px solid rgba(255,77,109,.5);border-radius:50px;outline:none;transition:all .3s ease;box-shadow:0 0 10px #ff4d6d33,inset 0 0 15px #ff4d6d0d;letter-spacing:.3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.search-container{overflow:hidden}.search-input::placeholder{color:#b0b8d499}.search-input:focus{border-color:var(--primary-red);box-shadow:0 0 20px #ff4d6d80,inset 0 0 20px #ff4d6d14;background:linear-gradient(135deg,#1a1f3a,#242a45)}.category-filter-container{display:flex;justify-content:center;gap:12px;margin:0 auto 2rem;flex-wrap:wrap;max-width:800px;padding:0 1rem}.category-btn{padding:8px 16px;border-radius:20px;border:2px solid rgba(255,77,109,.5);background:transparent;color:var(--text-secondary);cursor:pointer;font-weight:600;font-size:.9rem;letter-spacing:.5px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease,color .3s ease}.category-btn:hover{border-color:var(--primary-red);color:var(--text-primary);transform:translateY(-2px);box-shadow:0 4px 10px #ff4d6d33}.category-btn.active{border-color:var(--primary-red);background:linear-gradient(135deg,#ff4d6d33,#ff85a133);color:var(--text-primary);box-shadow:0 0 15px #ff4d6d66}h2{font-size:2.5rem;color:var(--primary-red);display:flex;justify-content:center;width:100%;margin-bottom:1rem;text-shadow:0 0 20px rgba(255,77,109,.5);font-weight:900;letter-spacing:2px}h3{color:var(--primary-red);display:flex;justify-content:center;width:100%;margin-bottom:1rem;text-shadow:0 0 20px rgba(255,77,109,.5);font-weight:900;letter-spacing:2px}.course-box{background:linear-gradient(135deg,#1a1f3a,#242a45,#1a1f3a);border:3px solid;border-image:linear-gradient(135deg,var(--primary-red),var(--secondary-pink)) 1;padding:1.8rem;width:280px;border-radius:4px;color:var(--text-primary);position:relative;overflow:hidden;display:flex;flex-direction:column;text-decoration:none;gap:.8rem;cursor:pointer;transition:all .3s ease;box-shadow:0 0 15px #ff4d6d66,inset 0 0 20px #ff4d6d1a}.course-img{width:200px;height:auto;max-height:180px;object-fit:contain;object-position:center;margin:0 auto 1rem;display:block}.course-box img{width:200px;height:200px;aspect-ratio:2/3;object-fit:cover;display:block;margin:0 auto 1rem}.course-box:before{content:"";position:absolute;top:4px;left:0;right:0;height:4px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);border-radius:2px}.course-box:after{content:"";position:absolute;bottom:-2px;left:-2px;right:-2px;height:6px;background:linear-gradient(90deg,#ff4d6dcc,#ff85a1cc);filter:blur(2px);z-index:-1}.course-box:hover{transform:translateY(-8px) scale(1.05);box-shadow:0 15px 30px #ff4d6d99,inset 0 0 30px #ff4d6d33,0 0 40px #ff4d6dcc;border-image:linear-gradient(135deg,#ff6b81,#ff99ac) 1}.course-box h3{color:var(--primary-red);font-size:1.5rem;font-weight:700;text-shadow:0 0 10px rgba(255,77,109,.6);line-height:1.4}.course-box p{color:var(--text-secondary);font-size:.95rem;line-height:1.5;text-align:center}.goal{background:linear-gradient(135deg,#1a1f3a,#242a45);padding:1.5rem 2rem;text-align:center;border-top:3px solid var(--primary-red);border-bottom:3px solid var(--secondary-pink);box-shadow:inset 0 0 30px #ff4d6d26;margin:0}.goal h2{margin-bottom:1.5rem;color:var(--primary-red);font-size:2rem;text-shadow:0 0 15px rgba(255,77,109,.5);font-weight:800}.goal ul{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:1rem}.goal li{margin:0;font-size:1rem;color:var(--text-secondary);background:linear-gradient(135deg,#ff4d6d1a,#ff85a11a);padding:1rem 1.5rem;border-radius:4px;border-left:3px solid var(--primary-red);transition:all .3s ease;flex:1;min-width:200px;max-width:300px}.goal li:hover{background:linear-gradient(135deg,#ff4d6d33,#ff85a133);transform:translateY(-3px);box-shadow:0 0 15px #ff4d6d66;color:var(--text-primary)}.site-footer{background:linear-gradient(180deg,#0a0e27,#050710);border-top:3px solid var(--primary-red);box-shadow:inset 0 2px 30px #ff4d6d1a,0 0 30px #ff4d6d26;padding:0 2rem 1.5rem;color:var(--text-secondary);font-size:.95rem;position:relative;overflow:hidden;margin-top:0!important;margin-bottom:0!important}.site-footer:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:60%;height:2px;background:linear-gradient(90deg,transparent,var(--primary-red),var(--secondary-pink),transparent);filter:blur(4px);animation:footerGlow 4s ease-in-out infinite}@keyframes footerGlow{0%,to{opacity:.6;width:40%}50%{opacity:1;width:70%}}.footer-top{display:grid;grid-template-columns:2fr 1fr 1.5fr;gap:2.5rem;max-width:1100px;margin:0 auto 1rem;align-items:start}.footer-brand{display:flex;flex-direction:column;gap:.75rem}.footer-brand-title{font-size:1.8rem;font-weight:900;background:linear-gradient(135deg,var(--primary-red),var(--secondary-pink));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:1px;text-shadow:none;filter:drop-shadow(0 0 8px rgba(255,77,109,.4))}.footer-brand-copy{color:var(--text-secondary);font-size:.9rem;line-height:1.7;max-width:280px}.footer-links{display:flex;flex-direction:column;gap:.6rem}.footer-links h3{color:var(--primary-red);font-size:1rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:.5rem;text-shadow:0 0 10px rgba(255,77,109,.4);width:auto;justify-content:flex-start}.footer-link{color:var(--text-secondary);text-decoration:none;font-size:.9rem;transition:all .25s ease;position:relative;padding-left:.75rem;display:block;width:fit-content}.footer-link:before{content:"›";position:absolute;left:0;color:var(--primary-red);opacity:0;transition:opacity .25s ease,transform .25s ease;transform:translate(-4px)}.footer-link:hover{color:var(--primary-red);text-shadow:0 0 8px rgba(255,77,109,.4);padding-left:1.1rem}.footer-link:hover:before{opacity:1;transform:translate(0)}.footer-social{display:flex;flex-direction:column;gap:.75rem}.footer-social h3{color:var(--primary-red);font-size:1rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:.5rem;text-shadow:0 0 10px rgba(255,77,109,.4);width:auto;justify-content:flex-start}.social-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.social-grid a{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary);text-decoration:none;font-size:.9rem;font-weight:500;padding:.55rem .9rem;border-radius:8px;border:1px solid rgba(255,77,109,.25);background:#ff4d6d0d;transition:all .3s ease}.social-grid a:hover{color:#fff;border-color:var(--primary-red);background:#ff4d6d26;box-shadow:0 0 12px #ff4d6d59;transform:translateY(-2px);text-shadow:0 0 8px rgba(255,77,109,.4)}.social-grid a svg{font-size:1.1rem;flex-shrink:0}.footer-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,77,109,.4),transparent);max-width:1100px;margin:0 auto 1.5rem}.footer-bottom{max-width:1100px;margin:0 auto;text-align:center;display:flex;flex-direction:column;gap:.4rem}.footer-copy{font-size:.85rem;color:var(--text-secondary);opacity:.8}.footer-note{font-size:.8rem;color:#b0b8d4bf}@media(max-width:768px){.footer-top{grid-template-columns:1fr 1fr;gap:2rem}.footer-brand{grid-column:1 / -1}.footer-brand-copy{max-width:100%}}@media(max-width:480px){.site-footer{padding:2rem 1.25rem 1.25rem}.footer-top{grid-template-columns:1fr;gap:1.5rem}.social-grid{grid-template-columns:1fr 1fr}.footer-brand-title{font-size:1.5rem}.footer-brand,.footer-links,.footer-social{align-items:center;text-align:center}}.progress-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:2rem;background:linear-gradient(135deg,#0a0e27,#1a1f3a,#050710)}.progress-card{background:linear-gradient(135deg,#1a1f3a,#242a45,#1a1f3a);padding:2.5rem;border-radius:8px;width:100%;max-width:500px;text-align:center;border:3px solid;border-image:linear-gradient(135deg,var(--primary-red),var(--secondary-pink)) 1;display:flex;flex-direction:column;gap:1.5rem;transition:all .4s cubic-bezier(.34,1.56,.64,1);box-shadow:0 0 30px #ff4d6d80,inset 0 0 30px #ff4d6d26,0 10px 40px #00000080;position:relative;overflow:hidden}.progress-card:before{content:"";position:absolute;top:-50%;right:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,77,109,.1) 0%,transparent 70%);animation:cardFloat 6s ease-in-out infinite;pointer-events:none;z-index:0}@keyframes cardFloat{0%,to{transform:translate(0) scale(1)}50%{transform:translate(10px,-10px) scale(1.05)}}.progress-card>*{position:relative;z-index:1}.progress-card:hover{transform:translateY(-10px) scale(1.02);box-shadow:0 0 40px #ff4d6dcc,inset 0 0 40px #ff4d6d33,0 20px 50px #000000b3}.progress-card h2{font-size:2.5rem;font-weight:900;color:var(--primary-red);margin-bottom:.5rem;text-shadow:0 0 15px rgba(255,77,109,.6);letter-spacing:1px}.progress-card p{font-size:1.1rem;color:var(--text-secondary);margin:.5rem 0;line-height:1.6}.progress-card p span{font-weight:700;color:var(--primary-red);text-shadow:0 0 10px rgba(255,77,109,.5)}.progress-bar-bg{width:100%;height:1.5rem;background:linear-gradient(90deg,#242a45,#1a1f3a);border-radius:4px;margin-top:1.5rem;overflow:hidden;border:2px solid var(--primary-red);box-shadow:inset 0 0 10px #ff4d6d4d;position:relative}.progress-bar-bg:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent)}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary-red),var(--secondary-pink));border-radius:2px;width:0%;transition:width .6s cubic-bezier(.34,1.56,.64,1);box-shadow:0 0 15px #ff4d6dcc;position:relative;overflow:hidden}.progress-bar-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shine 2s infinite}@keyframes shine{0%{transform:translate(-100%)}to{transform:translate(100%)}}.progress-card .motivation{margin-top:1rem;font-style:italic;color:var(--neon-cyan);font-size:.95rem;font-weight:500;letter-spacing:.5px}.progress-message{color:var(--primary-red);text-align:center;font-size:1.2rem;font-weight:600}.lesson{padding:2rem;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.8;color:var(--text-secondary);background:linear-gradient(135deg,transparent,rgba(255,77,109,.05));border-radius:8px;margin:0}.lesson.site-footer{background:none;border-radius:0;padding:0;margin:0}.lesson:has(>.goal){padding:0;margin:0;background:none;border-radius:0}.lesson h1,.lesson h2,.lesson h3{color:var(--primary-red);text-shadow:0 0 10px rgba(255,77,109,.3);margin-top:1.5rem;margin-bottom:1rem}.lesson ul{margin-left:2rem;margin-bottom:1rem}.lesson li{margin:.5rem 0}.lesson pre{font-size:.95rem;overflow-x:auto;background:#0f1419;padding:1.5rem;border-radius:4px;color:#0f0;border:2px solid var(--primary-red);margin:1rem 0;box-shadow:0 0 15px #ff4d6d4d;font-family:Monaco,Courier New,monospace;line-height:1.5}.lesson code{background:#1a1f2e;color:var(--neon-cyan);padding:.2rem .5rem;border-radius:3px;font-family:Monaco,Courier New,monospace}.login-section{padding:4rem 2rem;display:flex;justify-content:center;align-items:center;min-height:calc(100vh - 100px);box-sizing:border-box;width:100%}.login-container{display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#0a0e27,#1a1f3a,#050710);padding:2.5rem;width:100%;max-width:950px;margin:auto;border-radius:12px;border:2px solid rgba(255,255,255,.18);box-shadow:0 0 0 1px #ffffff14,0 12px 35px #0000008c,0 0 20px #3300fc59,0 0 40px #95008a47,0 0 60px #eb00002e;box-sizing:border-box}.login-image{padding:2rem;display:flex;justify-content:center;align-items:center;width:100%}.login-image img{width:23rem;max-width:100%;height:auto;filter:drop-shadow(0 0 20px rgba(255,77,109,.3));transition:all .4s cubic-bezier(.34,1.56,.64,1)}.login-card{width:100%;max-width:450px;box-sizing:border-box}.login-form{padding:2rem;border-radius:8px;display:flex;flex-direction:column;gap:1.2rem;width:100%;box-sizing:border-box;transition:all .3s cubic-bezier(.34,1.56,.64,1)}.login-card input{width:100%;box-sizing:border-box}.password-field{position:relative;width:100%;display:flex;align-items:center}.password-field input{width:100%;padding-right:3rem!important;box-sizing:border-box}.password-field__toggle{position:absolute!important;right:.4rem!important;top:50%!important;transform:translateY(-50%)!important;background:transparent!important;background-image:none!important;border:none!important;box-shadow:none!important;text-shadow:none!important;margin:0!important;padding:.3rem .45rem!important;min-width:auto!important;width:auto!important;overflow:visible!important;font-size:1rem!important;line-height:1!important;cursor:pointer!important;color:var(--text-secondary, rgba(255, 255, 255, .65))!important;display:inline-flex!important;align-items:center!important;justify-content:center!important;transition:color .2s ease!important;z-index:2}.password-field__toggle:before{display:none!important;content:none!important}.password-field__toggle:hover{color:var(--white, #fff)!important;background:transparent!important;box-shadow:none!important;transform:translateY(-50%)!important}.password-field__toggle:focus-visible{outline:2px solid rgba(255,77,109,.7)!important;outline-offset:2px!important}.login-form h1,.login-form h2{color:var(--primary-red);text-shadow:0 0 15px rgba(255,77,109,.6);margin-bottom:.5rem;font-size:clamp(1.8rem,4vw,2.5rem);font-weight:600;text-align:center}button:not(.nav-link):not(.dropdown-btn):not(.hamburger):not(.dropdown-item):not(.password-field__toggle){background:linear-gradient(135deg,var(--primary-red),var(--secondary-pink));border:2px solid transparent;color:var(--white);padding:.8rem 1.5rem;margin:.5rem;cursor:pointer;border-radius:4px;transition:all .3s cubic-bezier(.34,1.56,.64,1);font-weight:600;font-size:1rem;position:relative;overflow:hidden;box-shadow:0 0 15px #ff4d6d66;text-shadow:0 0 5px rgba(0,0,0,.3);letter-spacing:.5px}button:not(.nav-link):not(.dropdown-btn):not(.hamburger):not(.dropdown-item):not(.password-field__toggle):before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s ease;z-index:1}button:not(.nav-link):not(.dropdown-btn):not(.hamburger):not(.dropdown-item):not(.password-field__toggle):hover:before{left:100%}button:not(.nav-link):not(.dropdown-btn):not(.hamburger):not(.dropdown-item):not(.password-field__toggle):hover{transform:translateY(-3px) scale(1.05);background:linear-gradient(135deg,#ff6b81,#ff99ac);box-shadow:0 0 25px 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10px);left:50%;transform:translate(-50%);width:280px;background:linear-gradient(135deg,#0a0e27,#1a1f3a,#050710);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:8px;box-shadow:0 8px 24px #00000059;z-index:9999;animation:none}.dropdown-content:before{content:"";position:absolute;top:-7px;left:50%;width:14px;height:14px;background:linear-gradient(135deg,#0a0e27,#1a1f3a,#050710);transform:translate(-50%) rotate(45deg);border-left:1px solid rgba(255,95,135,.25);border-top:1px solid rgba(255,95,135,.25)}.dropdown-item{width:100%;display:flex;align-items:center;gap:12px;padding:14px 18px;background:transparent;border:none;color:#fff;font-size:16px;font-weight:600;border-radius:12px;cursor:pointer;transition:all .25s ease}.dropdown-item:hover{background:transparent;color:#fff}.dropdown-item svg{font-size:16px;flex-shrink:0}@keyframes dropdownOpen{0%{opacity:0;transform:translate(-50%) 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20px}.feedback-success-header{display:flex;align-items:center;gap:10px;margin-bottom:10px}.feedback-success-icon{font-size:1.5rem}.feedback-success-title{font-size:1.15rem;font-weight:700;color:#86efac;letter-spacing:.5px}.feedback-success-meta{display:flex;gap:8px;flex-wrap:wrap}.feedback-meta-chip{background:#22c55e26;border:1px solid rgba(34,197,94,.35);color:#bbf7d0;border-radius:20px;padding:4px 12px;font-size:.85rem;font-weight:500}.feedback-panel--error{background:linear-gradient(135deg,#0f0a0a,#1c0f0f);border:1px solid rgba(239,68,68,.4);box-shadow:0 0 20px #ef44441f;display:flex;flex-direction:column;gap:0}.feedback-error-header{display:flex;align-items:center;gap:8px;padding:14px 18px;background:#ef444414;border-bottom:1px solid rgba(239,68,68,.15);flex-wrap:wrap}.feedback-badge{border-radius:6px;padding:4px 12px;font-size:.82rem;font-weight:700;color:#fff;letter-spacing:.3px}.feedback-line-badge{background:#ffffff14;border:1px solid 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18px;background:linear-gradient(135deg,#eab30814,#eab3080a);border-top:1px solid rgba(234,179,8,.2)}.feedback-hint-icon{font-size:1.1rem;flex-shrink:0;margin-top:1px}.feedback-hint-text{color:#fde68a;font-size:.9rem;line-height:1.55}.site-header{background:linear-gradient(135deg,#0a0e27,#1a1f3a,#0a0e27);color:#fff;border-bottom:3px solid #ff4d6d;box-shadow:0 0 30px #ff4d6d80,inset 0 0 20px #ff4d6d1a;padding:20px;position:relative;overflow:visible;display:flex;flex-direction:column;gap:.75rem;width:100%;margin-top:30px}.site-header:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(255,77,109,.12) 0%,transparent 65%);animation:headerGlow 4s ease-in-out infinite;pointer-events:none;z-index:0}.header-top{display:flex;align-items:center;justify-content:flex-start;gap:.5rem;position:fixed;top:0;left:0;z-index:999999;width:100%;background:linear-gradient(135deg,#0a0e27,#1a1f3a,#0a0e27);padding:1rem;border-bottom:3px solid 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#ff5f8f4d}.bookmark-btn--loading{opacity:.6;cursor:not-allowed}.bookmark-btn--loading:hover{background:#ffffff1a;color:#808090;border-color:#ffffff26}.bookmark-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.25);border-top-color:#ff5f8f;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.global-back-nav{width:100%;max-width:100vw;box-sizing:border-box;margin:0;padding:.75rem clamp(1rem,4vw,2.5rem) 0;overflow:hidden}.global-back-nav__inner{display:flex;align-items:center;width:100%;max-width:100%}.global-back-nav__button{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;padding:0;color:#ff85a1;cursor:pointer;background:#ffffff0a;border:1px solid rgba(255,77,109,.38);border-radius:10px;box-shadow:0 0 0 transparent;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease}.global-back-nav__button:hover,.global-back-nav__button:focus-visible{color:#fff;background:#ff4d6d1f;border-color:#ff85a1d9;box-shadow:0 0 14px #ff4d6d59;transform:translate(-2px);outline:none}.global-back-nav__button:active{transform:translate(0)}.global-back-nav__icon{font-size:.9rem;line-height:1;transition:transform .2s ease}.global-back-nav__button:hover .global-back-nav__icon,.global-back-nav__button:focus-visible .global-back-nav__icon{transform:translate(-1px)}.codevibe-layout-managed.dynamic-progress-sidebar-visible .global-back-nav--lesson{padding-left:calc(280px + clamp(1rem,4vw,4rem));padding-right:clamp(1rem,4vw,4rem)}.codevibe-layout-managed.dynamic-progress-sidebar-visible.dynamic-progress-sidebar-collapsed .global-back-nav--lesson{padding-left:calc(52px + clamp(1rem,4vw,4rem));padding-right:clamp(1rem,4vw,4rem)}.global-back-nav--module{padding:1rem clamp(1.5rem,5vw,3.75rem) 0}.global-back-nav--auth,.global-back-nav--default{padding:.75rem clamp(1rem,4vw,2.5rem) 0}@media(max-width:1024px){.codevibe-layout-managed.dynamic-progress-sidebar-visible .global-back-nav--lesson{padding-left:calc(280px + 1.5rem);padding-right:1.5rem}.codevibe-layout-managed.dynamic-progress-sidebar-visible.dynamic-progress-sidebar-collapsed .global-back-nav--lesson{padding-left:calc(52px + 1.5rem);padding-right:1.5rem}}@media(max-width:768px){.global-back-nav,.global-back-nav--module,.global-back-nav--auth,.global-back-nav--default{padding:.5rem 1rem 0}.codevibe-layout-managed.dynamic-progress-sidebar-visible .global-back-nav--module,.codevibe-layout-managed.dynamic-progress-sidebar-visible.dynamic-progress-sidebar-collapsed .global-back-nav--module{padding-left:1rem;padding-right:1rem}.global-back-nav__button{width:2rem;height:2rem;border-radius:8px}.global-back-nav__icon{font-size:.82rem}}@media(max-width:480px){.global-back-nav,.global-back-nav--module,.global-back-nav--auth,.global-back-nav--default{padding:.4rem .8rem 0}}.notes-fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:#ff5f8f;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px #ff5f8f66;z-index:1000;transition:transform .2s,box-shadow .2s}.notes-fab:hover{transform:scale(1.05);box-shadow:0 6px 24px #ff5f8f80}.notes-fab-count{position:absolute;top:-4px;right:-4px;background:#1a1a2e;color:#fff;font-size:11px;font-weight:700;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:2px solid #ff5f8f}.notes-panel{position:fixed;top:0;right:0;width:360px;height:100vh;background:#1a1a2e;border-left:1px solid rgba(255,95,143,.2);z-index:999;display:flex;flex-direction:column;box-shadow:-4px 0 24px #0000004d;animation:slideIn .25s ease-out}@keyframes 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14px;margin-bottom:10px}.notes-item-content{font-size:13px;line-height:1.6;color:#d0d0e0;white-space:pre-wrap;word-break:break-word}.notes-item-footer{display:flex;align-items:center;justify-content:space-between;margin-top:8px;padding-top:8px;border-top:1px solid rgba(255,255,255,.05)}.notes-item-date{font-size:11px;color:#606070}.notes-item-actions{display:flex;gap:4px}.notes-icon-btn{background:#ffffff0f;border:none;color:#808090;width:28px;height:28px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}.notes-icon-btn:hover{background:#ff5f8f26;color:#ff5f8f}.notes-icon-btn--delete:hover{background:#ff6b6b26;color:#ff6b6b}.notes-edit-area{display:flex;flex-direction:column;gap:8px}.notes-edit-actions{display:flex;gap:6px}.notes-save-btn,.notes-cancel-btn{display:flex;align-items:center;gap:4px;padding:6px 12px;border:none;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;transition:background .2s}.notes-save-btn{background:#ff5f8f;color:#fff}.notes-save-btn:hover{background:#ff709b}.notes-cancel-btn{background:#ffffff14;color:#a0a0b0}.notes-cancel-btn:hover{background:#ffffff26;color:#fff}.notes-saving-indicator{display:flex;align-items:center;justify-content:center;gap:6px;padding:8px;font-size:12px;color:#808090}@media(max-width:640px){.notes-panel{width:100vw}}.bookmarks-page{min-height:100vh;background:linear-gradient(135deg,#0f0c29,#1a1a2e,#16213e);padding:40px 60px;color:#e0e0e0}.bookmarks-header{margin-bottom:40px}.bookmarks-back{display:inline-flex;align-items:center;gap:6px;color:#808090;text-decoration:none;font-size:14px;margin-bottom:16px;transition:color .2s}.bookmarks-back:hover{color:#ff5f8f}.bookmarks-header h1{display:flex;align-items:center;gap:12px;font-size:2rem;color:#ff5f8f;margin:0 0 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rgba(255,255,255,.1);border-radius:14px;overflow:hidden;transition:transform .2s,border-color .2s}.bookmark-card:hover{transform:translateY(-2px);border-color:#ff5f8f4d}.bookmark-card-link{display:block;padding:20px;text-decoration:none;color:inherit}.bookmark-card-header{display:flex;align-items:center;gap:8px;margin-bottom:12px}.bookmark-course-badge{padding:4px 10px;background:#ff5f8f26;color:#ff5f8f;border-radius:6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.bookmark-card-title{font-size:16px;font-weight:600;color:#fff;margin:0 0 12px;line-height:1.4}.bookmark-card-footer{display:flex;align-items:center;gap:6px;color:#808090;font-size:13px}.bookmark-card-unknown{padding:20px}.bookmark-remove-btn{position:absolute;top:12px;right:12px;background:#ffffff14;border:none;color:#ff5f8f;width:32px;height:32px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.bookmark-remove-btn:hover{background:#ff5f8f33}@media(max-width:768px){.bookmarks-page{padding:24px 16px}.bookmarks-header h1{font-size:1.5rem}.bookmarks-grid{grid-template-columns:1fr}}