body{margin:0;padding:0}:root{--bg-dark:#fff;--bg-card:#f8fafc;--bg-card-hover:#f1f5f9;--accent-cyan:#0284c7;--accent-blue:#2563eb;--accent-purple:#6d28d9;--accent-pink:#db2777;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--glass-bg:#ffffffd9;--glass-border:#0f172a14;--glass-glow:#2563eb0d;--font-heading:"Outfit", sans-serif;--font-body:"Inter", sans-serif;--shadow-lg:0 10px 30px -10px #0f172a1a;--transition-smooth:all .3s cubic-bezier(.4, 0, .2, 1);--max-width:1200px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-primary);font-family:var(--font-body);background-attachment:fixed;line-height:1.6;overflow-x:hidden}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 2rem}section{padding:6rem 0}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);letter-spacing:-.02em;font-weight:700}a{color:inherit;transition:var(--transition-smooth);text-decoration:none}.text-gradient{background:linear-gradient(135deg, var(--accent-blue), var(--accent-purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text}.badge{color:var(--accent-blue);letter-spacing:.05em;text-transform:uppercase;background:linear-gradient(135deg,#2563eb0d,#6d28d90d);border:1px solid #2563eb33;border-radius:50px;padding:.4rem 1rem;font-size:.85rem;font-weight:600;display:inline-block}.btn{font-family:var(--font-heading);cursor:pointer;transition:var(--transition-smooth);border:none;border-radius:8px;align-items:center;gap:.75rem;padding:.8rem 1.8rem;font-size:1rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--accent-blue), var(--accent-purple));color:#fff;box-shadow:0 4px 20px #2563eb26}.btn-primary:hover{background:linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));transform:translateY(-2px);box-shadow:0 6px 24px #2563eb4d}.btn-secondary{background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-primary)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--accent-cyan);transform:translateY(-2px)}.card-glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);box-shadow:var(--shadow-lg);transition:var(--transition-smooth);border-radius:16px;padding:2.5rem}.card-glass:hover{border-color:#2563eb33;transform:translateY(-4px);box-shadow:0 15px 35px -5px #0f172a1f,0 0 25px #2563eb08}.navbar{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;border-bottom:1px solid var(--glass-border);width:100%;transition:var(--transition-smooth);background:#ffffffd9;position:sticky;top:0}.nav-container{justify-content:space-between;align-items:center;height:80px;display:flex}.nav-logo{font-family:var(--font-heading);text-transform:uppercase;letter-spacing:.02em;flex-shrink:0;align-items:center;gap:.75rem;margin-right:1.5rem;font-size:1.5rem;font-weight:800;display:flex}.nav-logo i{background:linear-gradient(135deg, var(--accent-blue), var(--accent-purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.8rem}.nav-menu{align-items:center;gap:1.25rem;list-style:none;display:flex}.nav-link{color:var(--text-secondary);white-space:nowrap;padding:.5rem 0;font-size:.85rem;font-weight:600;position:relative}.nav-link:hover,.nav-link.active{color:var(--text-primary)}.nav-link:after{content:"";background:linear-gradient(90deg, var(--accent-blue), var(--accent-purple));width:0;height:2px;transition:var(--transition-smooth);position:absolute;bottom:0;left:0}.nav-link:hover:after,.nav-link.active:after{width:100%}.hero{justify-content:space-between;align-items:center;gap:4rem;min-height:70vh;display:flex;position:relative}.hero-content{flex:1}.hero-title{color:var(--text-primary);margin-bottom:1.5rem;font-size:4rem;line-height:1.1}.hero-subtitle{color:var(--text-secondary);max-width:550px;margin-bottom:2.5rem;font-size:1.2rem}.hero-buttons{flex-wrap:wrap;gap:1.5rem;display:flex}.hero-image-wrapper{flex:1;justify-content:center;align-items:center;display:flex;position:relative}.hero-image-glow{z-index:1;filter:blur(20px);background:radial-gradient(circle,#2563eb0d 0%,#0000 60%);width:80%;height:80%;position:absolute}.hero-illustration{z-index:2;color:var(--accent-blue);font-size:15rem;animation:6s ease-in-out infinite float}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}.contact-bubble{z-index:999;flex-direction:column;gap:1rem;display:flex;position:fixed;bottom:2rem;right:2rem}.whatsapp-float{color:#fff;width:60px;height:60px;transition:var(--transition-smooth);background:#25d366;border-radius:50px;justify-content:center;align-items:center;font-size:2rem;display:flex;box-shadow:0 4px 15px #25d3664d}.whatsapp-float:hover{transform:scale(1.1);box-shadow:0 6px 20px #25d36666}.grid-3{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;margin-top:3rem;display:grid}.grid-2{grid-template-columns:repeat(auto-fit,minmax(450px,1fr));gap:3rem;margin-top:3rem;display:grid}.section-header{text-align:center;max-width:700px;margin:0 auto 3rem}.section-header h2{color:var(--text-primary);margin-bottom:1rem;font-size:2.8rem}.section-header p{color:var(--text-secondary);font-size:1.1rem}.search-wrapper{max-width:600px;margin:2.5rem 0;position:relative}.search-input{background:var(--glass-bg);width:100%;color:var(--text-primary);transition:var(--transition-smooth);border:1px solid #0f172a1f;border-radius:12px;outline:none;padding:1.2rem 1.5rem 1.2rem 3.5rem;font-size:1.1rem}.search-input:focus{border-color:var(--accent-blue);box-shadow:0 0 15px #2563eb14}.search-icon{color:var(--text-secondary);font-size:1.2rem;position:absolute;top:50%;left:1.3rem;transform:translateY(-50%)}.subject-card{flex-direction:column;justify-content:space-between;height:100%;display:flex}.subject-header{justify-content:space-between;align-items:flex-start;margin-bottom:1rem;display:flex}.subject-code{color:var(--text-secondary);background:#0f172a0d;border-radius:4px;padding:.2rem .6rem;font-size:.8rem;font-weight:600}.subject-title{color:var(--text-primary);margin-bottom:.5rem;font-size:1.5rem}.subject-teacher{color:var(--accent-blue);margin-bottom:1rem;font-size:.95rem;font-weight:500}.subject-desc{color:var(--text-secondary);flex-grow:1;margin-bottom:1.5rem;font-size:.95rem}.form-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:1.5rem;display:grid}.mode-subjects-grid{grid-template-columns:1fr;gap:1.5rem;margin-bottom:1.5rem;display:grid}@media (width>=768px){.mode-subjects-grid{grid-template-columns:1fr 2fr}}.form-group{flex-direction:column;gap:.5rem;display:flex}.form-group label{color:var(--text-secondary);font-size:.9rem;font-weight:500}.form-control{width:100%;max-width:100%;color:var(--text-primary);transition:var(--transition-smooth);background:#ffffffe6;border:1px solid #0f172a1f;border-radius:8px;outline:none;padding:.9rem 1.2rem;font-size:1rem}.form-control:focus{border-color:var(--accent-blue)}.form-control option{background:var(--bg-dark);color:var(--text-primary)}.subject-checklist{background:#0f172a05;border:1px solid #0f172a14;border-radius:8px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1rem;margin-top:1rem;padding:1.5rem;display:grid}.checklist-item{cursor:pointer;transition:var(--transition-smooth);border-radius:6px;align-items:center;gap:.75rem;padding:.5rem;display:flex}.checklist-item:hover{background:#0f172a0a}.checklist-item input{width:18px;height:18px;accent-color:var(--accent-blue);cursor:pointer}.invoice-card{border-left:4px solid var(--accent-blue)}.invoice-header{border-bottom:1px dashed #0f172a1f;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1.5rem;display:flex}.invoice-title{color:var(--text-primary);font-size:1.8rem}.invoice-number{color:var(--accent-blue);font-family:monospace;font-size:1.1rem;font-weight:700}.invoice-grid{grid-template-columns:1fr 1fr;gap:2rem;margin-bottom:2rem;display:grid}.invoice-block h4{color:var(--text-secondary);text-transform:uppercase;margin-bottom:.5rem;font-size:.9rem}.invoice-block p{color:var(--text-primary);font-size:1.1rem;font-weight:600}.invoice-table{border-collapse:collapse;width:100%;margin-bottom:2rem}.invoice-table th,.invoice-table td{text-align:left;border-bottom:1px solid #0f172a14;padding:1rem}.invoice-table th{color:var(--text-secondary);font-size:.9rem;font-weight:500}.invoice-table td{color:var(--text-primary)}.invoice-total{color:var(--accent-blue);font-size:1.6rem;font-weight:800}.bank-info{background:#2563eb08;border:1px solid #2563eb1a;border-radius:8px;margin-top:1.5rem;padding:1.5rem}.bank-info-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1rem;display:grid}.bank-info-item span{color:var(--text-secondary);font-size:.8rem;display:block}.bank-info-item strong{color:var(--text-primary);word-break:break-all;font-size:1rem}.dashboard-grid{grid-template-columns:300px 1fr;align-items:start;gap:2.5rem;display:grid}.sidebar-menu{flex-direction:column;gap:.75rem;display:flex}.sidebar-btn{color:var(--text-secondary);text-align:left;font-family:var(--font-heading);cursor:pointer;transition:var(--transition-smooth);background:0 0;border:1px solid #0000;border-radius:8px;align-items:center;gap:1rem;padding:1rem 1.5rem;font-weight:600;display:flex}.sidebar-btn:hover,.sidebar-btn.active{background:var(--bg-card-hover);border-color:var(--glass-border);color:var(--text-primary)}.sidebar-btn.active{border-left:3px solid var(--accent-blue);background:var(--bg-card-hover)}.status-badge{text-transform:uppercase;border-radius:50px;padding:.25rem .75rem;font-size:.8rem;font-weight:700}.status-paid{color:#16a34a;background:#22c55e1a;border:1px solid #22c55e40}.status-due{color:#dc2626;background:#dc262614;border:1px solid #dc262633}.status-unpaid{color:#d97706;background:#d9770614;border:1px solid #d9770633}.lock-screen{text-align:center;border:1px dashed var(--accent-pink);background:#db277705;border-radius:12px;flex-direction:column;align-items:center;gap:1.5rem;margin-top:1.5rem;padding:4rem 2rem;display:flex}.lock-icon{color:var(--accent-pink);font-size:4rem;animation:2s infinite pulse}@keyframes pulse{0%{opacity:.8;transform:scale(1)}50%{opacity:1;transform:scale(1.05)}to{opacity:.8;transform:scale(1)}}.video-player{aspect-ratio:16/9;border:1px solid var(--glass-border);background:#000;border-radius:12px;margin-top:1.5rem;position:relative;overflow:hidden}.video-placeholder{color:#94a3b8;background:linear-gradient(135deg,#0f172a,#020617);flex-direction:column;justify-content:center;align-items:center;gap:1.5rem;height:100%;display:flex}.video-play-btn{color:var(--accent-cyan);cursor:pointer;transition:var(--transition-smooth);font-size:4rem}.video-play-btn:hover{color:#fff;transform:scale(1.1)}.footer{color:var(--text-secondary);background:#f8fafc;border-top:1px solid #0f172a0f;margin-top:6rem;padding:5rem 0 3rem}.footer-grid{grid-template-columns:2fr 1fr 1.5fr;gap:4rem;margin-bottom:4rem;display:grid}.footer-brand h3{color:var(--text-primary);margin-bottom:1rem;font-size:1.6rem}.footer-socials{gap:1rem;margin-top:1.5rem;display:flex}.social-icon{width:40px;height:40px;color:var(--text-secondary);transition:var(--transition-smooth);background:#0f172a0d;border-radius:50%;justify-content:center;align-items:center;font-size:1.2rem;display:flex}.social-icon:hover{background:var(--accent-blue);color:#fff;transform:translateY(-3px)}.footer-links h4,.footer-contact h4{color:var(--text-primary);margin-bottom:1.5rem;font-size:1.1rem}.footer-links ul{flex-direction:column;gap:.75rem;list-style:none;display:flex}.footer-links a:hover{color:var(--accent-blue);padding-left:4px}.contact-list{flex-direction:column;gap:1rem;list-style:none;display:flex}.contact-list li{align-items:center;gap:.75rem;display:flex}.contact-list i{color:var(--accent-blue);font-size:1.1rem}.footer-bottom{text-align:center;border-top:1px solid #0f172a0f;padding-top:2rem;font-size:.9rem}.info-row{flex-wrap:wrap;gap:2rem;margin-top:2rem;display:flex}.info-badge{color:var(--text-primary);background:#0f172a08;border:1px solid #0f172a14;border-radius:8px;align-items:center;gap:.75rem;padding:.6rem 1.2rem;font-size:.95rem;display:flex}.info-badge i{color:var(--accent-blue)}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:#f1f5f9}::-webkit-scrollbar-thumb{background:#cbd5e1;border:2px solid #f1f5f9;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@media (width<=992px){.hero{text-align:center;flex-direction:column;padding-top:4rem}.hero-subtitle{margin-left:auto;margin-right:auto}.hero-buttons{justify-content:center}.dashboard-grid{grid-template-columns:1fr}}@media (width<=1200px){.nav-menu{gap:.8rem}.nav-link{font-size:.8rem}}@media (width<=1080px){.nav-menu{display:none}}@media (width<=768px){.hero-title{font-size:2.1rem}.section-header h2{font-size:1.8rem}.footer-grid{grid-template-columns:1fr;gap:2.5rem}.invoice-grid{grid-template-columns:1fr;gap:1rem}.container{padding:0 1rem}.nav-logo span{display:none}.nav-container{height:70px;padding:0 .5rem}.navbar .btn{gap:.4rem;padding:.4rem .8rem;font-size:.78rem}.card-glass{padding:1.5rem}.subject-checklist{grid-template-columns:1fr;padding:1rem}}@media (width<=480px){.grid-3,.grid-2{grid-template-columns:1fr}}.menu-toggle{color:var(--text-primary);cursor:pointer;transition:var(--transition-smooth);background:0 0;border:none;outline:none;padding:.5rem;font-size:1.5rem;display:none}.menu-toggle:hover{color:var(--accent-blue)}@media (width<=1080px){.menu-toggle{display:block}}.nav-drawer{background:var(--bg-dark);z-index:1100;width:300px;height:100vh;transition:var(--transition-smooth);border-right:1px solid var(--glass-border);flex-direction:column;gap:2rem;padding:2rem 1.5rem;display:flex;position:fixed;top:0;left:-320px;box-shadow:10px 0 30px #00000026}.nav-drawer.open{left:0}.drawer-header{border-bottom:1px solid var(--glass-border);justify-content:space-between;align-items:center;padding-bottom:1rem;display:flex}.drawer-close{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;outline:none;font-size:1.5rem}.drawer-close:hover{color:var(--accent-pink)}.drawer-menu{flex-direction:column;gap:1.5rem;list-style:none;display:flex}.drawer-link{font-family:var(--font-heading);color:var(--text-secondary);transition:var(--transition-smooth);padding:.5rem 0;font-size:1.1rem;font-weight:600;display:block}.drawer-link:hover,.drawer-link.active{color:var(--accent-blue);padding-left:.5rem}.drawer-backdrop{-webkit-backdrop-filter:blur(4px);z-index:1050;background:#0f172a66;width:100vw;height:100vh;animation:.25s ease-out fadeIn;position:fixed;top:0;left:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}