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140px)}.admin-sidebar{width:250px;background-color:#2c3e50;color:#fff;padding:2rem 0}.admin-content{flex:1;padding:2rem}.sidebar-link{display:block;padding:1rem 2rem;color:#fff;text-decoration:none;transition:background-color .3s}.sidebar-link:hover,.sidebar-link.active{background-color:#34495e}.welcome-container{height:100vh;display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.welcome-card{background:#fff;padding:3rem;border-radius:20px;box-shadow:0 20px 40px #0000001a;text-align:center;max-width:800px;width:90%}.welcome-title{color:#2c3e50;margin-bottom:1rem;font-size:2.5rem}.welcome-subtitle{color:#7f8c8d;margin-bottom:3rem;font-size:1.2rem}.panel-container{display:flex;gap:2rem;justify-content:center}.panel{flex:1;padding:2rem;border-radius:15px;cursor:pointer;transition:all .3s;background:linear-gradient(135deg,#f0f4f8,#d9e2ec)}.panel:hover{transform:translateY(-10px);box-shadow:0 15px 30px #00000026}.panel-student{border-top:5px solid #27ae60}.panel-admin{border-top:5px solid #6a11cb}.panel h3{font-size:1.8rem;margin-bottom:1rem;color:#2c3e50}.panel p{color:#7f8c8d;margin-bottom:1.5rem}.panel-icon{font-size:3rem;margin-bottom:1rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.panel-container{flex-direction:column}.nav-links{gap:1rem;flex-wrap:wrap;justify-content:center}.card-grid{grid-template-columns:1fr}.admin-layout{flex-direction:column}.admin-sidebar{width:100%}.hero-section{height:60vh;margin:-1rem -1rem 2rem;background-attachment:scroll}.hero-content h1{font-size:2.5rem}.hero-content p{font-size:1.2rem}.logo{font-size:1.5rem}.logo-image{height:40px;width:40px}}@media(max-width:480px){.navbar{padding:1rem}.nav-links{gap:.5rem}.nav-link{padding:.5rem;font-size:.9rem}.hero-section{height:50vh}.hero-content h1{font-size:2rem}.hero-content p{font-size:1rem}.page-container{padding:0 1rem}.card{padding:1rem}}.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer}.hamburger span{width:26px;height:3px;background:#fff;transition:all .3s}@media(max-width:768px){.hamburger{display:flex}.nav-links{position:absolute;top:80px;right:0;width:50vw;height:calc(100vh - 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