:root{--bg:#090b11;--bg-gradient:radial-gradient(circle at 50% 0%, #151a2e 0%, #090b11 100%);--card-bg:#161c2da6;--card-border:#ffffff14;--card-hover-border:#6366f159;--accent:#6366f1;--accent-light:#818cf8;--accent-gradient:linear-gradient(135deg, #6366f1 0%, #a855f7 100%);--text:#f8fafc;--text-muted:#94a3b8;--border:#ffffff14;--success:#10b981;--success-bg:#10b98126;--success-border:#10b9814d;--warning:#f59e0b;--warning-bg:#f59e0b26;--warning-border:#f59e0b4d;--danger:#ef4444;--danger-bg:#ef444426;--danger-border:#ef44444d;--info:#0ea5e9;--info-bg:#0ea5e926;--info-border:#0ea5e94d;--sidebar-width:260px;--mobile-nav-height:64px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0003, 0 2px 4px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000004d, 0 4px 6px -2px #00000026;--shadow-xl:0 20px 25px -5px #0006, 0 10px 10px -5px #0003}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{background-color:var(--bg);background-image:var(--bg-gradient);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;height:100%;font-family:Inter,system-ui,-apple-system,sans-serif;overflow:hidden}body{flex-direction:column;height:100%;display:flex;overflow:hidden}h1,h2,h3,h4,h5,h6{color:var(--text);font-family:Plus Jakarta Sans,sans-serif;font-weight:700;line-height:1.25}a{color:var(--accent-light);text-decoration:none;transition:color .2s}a:hover{color:var(--accent)}code{background-color:#ffffff12;border:1px solid #ffffff0d;border-radius:4px;padding:.15em .3em;font-family:Fira Code,monospace;font-size:.9em}.app-container{width:100vw;height:100vh;display:flex;overflow:hidden}.main-wrapper{flex-direction:column;flex:1;height:100%;display:flex;position:relative;overflow:hidden}.content-container{-webkit-overflow-scrolling:touch;flex:1;padding:2rem 2rem 3rem;overflow-y:auto}.content-container::-webkit-scrollbar{width:8px;height:8px}.content-container::-webkit-scrollbar-track{background:0 0}.content-container::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:4px}.content-container::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.sidebar{width:var(--sidebar-width);-webkit-backdrop-filter:blur(16px);border-right:1px solid var(--border);background:#0d111ed9;flex-direction:column;flex-shrink:0;height:100%;display:flex}.sidebar-header{border-bottom:1px solid var(--border);align-items:center;gap:.75rem;padding:1.75rem 1.5rem;display:flex}.sidebar-header .logo{width:28px;height:28px;color:var(--accent-light)}.sidebar-header .logo-text{background:var(--accent-gradient);-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;font-family:Plus Jakarta Sans,sans-serif;font-size:1.25rem;font-weight:800}.sidebar-nav{flex-direction:column;flex:1;gap:.5rem;padding:1.5rem 1rem;display:flex}.sidebar-nav .nav-item{color:var(--text-muted);border-radius:12px;align-items:center;gap:.75rem;padding:.85rem 1rem;font-size:.95rem;font-weight:500;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.sidebar-nav .nav-item svg{opacity:.7;width:20px;height:20px;transition:opacity .2s}.sidebar-nav .nav-item:hover{color:var(--text);background:#ffffff0a}.sidebar-nav .nav-item:hover svg{opacity:1}.sidebar-nav .nav-item.active{color:var(--text);background:#6366f126;border:1px solid #6366f140}.sidebar-nav .nav-item.active svg{color:var(--accent-light);opacity:1}.sidebar-footer{border-top:1px solid var(--border);justify-content:center;padding:1.5rem;display:flex}.exam-date{color:var(--accent-light);background:#6366f11a;border:1px solid #6366f133;border-radius:20px;padding:.4rem .8rem;font-size:.85rem;font-weight:600}.mobile-header{-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:50;background:#0d111ecc;padding:1rem;display:none;position:sticky;top:0}.header-content{align-items:center;gap:.5rem;display:flex}.header-content .logo{width:24px;height:24px;color:var(--accent-light)}.mobile-title{font-size:1.15rem;font-weight:700}.mobile-bottom-nav{height:var(--mobile-nav-height);-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--border);z-index:100;padding-bottom:env(safe-area-inset-bottom);background:#0d111ef2;justify-content:space-around;align-items:center;display:none;position:fixed;bottom:0;left:0;right:0}.mobile-bottom-nav .nav-item{color:var(--text-muted);flex-direction:column;flex:1;align-items:center;gap:.25rem;padding:.5rem;font-size:.75rem;font-weight:500;transition:all .2s;display:flex}.mobile-bottom-nav .nav-item svg{opacity:.7;width:20px;height:20px}.mobile-bottom-nav .nav-item.active{color:var(--accent-light)}.mobile-bottom-nav .nav-item.active svg{opacity:1}.glass-card{background:var(--card-bg);border:1px solid var(--card-border);box-shadow:var(--shadow-md);-webkit-backdrop-filter:blur(8px);border-radius:16px;padding:1.5rem;transition:transform .2s cubic-bezier(.4,0,.2,1),border-color .2s,box-shadow .2s}.glass-card:hover{border-color:var(--card-hover-border);box-shadow:var(--shadow-lg)}.badge{letter-spacing:.3px;text-transform:uppercase;border:1px solid #ffffff1a;border-radius:20px;padding:.25rem .75rem;font-size:.75rem;font-weight:600;display:inline-block}.badge-accent{color:var(--accent-light);background:#6366f126;border-color:#6366f14d}.btn{cursor:pointer;border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);display:inline-flex}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 12px #6366f14d}.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 6px 16px #6366f166}.btn-primary:active{transform:translateY(0)}.btn-secondary{color:var(--text);background:#ffffff0d;border-color:#ffffff1a}.btn-secondary:hover{background:#ffffff1a;border-color:#fff3}@media (width<=768px){.sidebar{display:none}.mobile-header{display:block}.mobile-bottom-nav{display:flex}.content-container{padding:1rem;padding-bottom:calc(var(--mobile-nav-height) + 1.5rem)}.app-container{flex-direction:column}}