:root{--primary:#4f46e5;--primary-light:#818cf8;--primary-dark:#3730a3;--secondary:#10b981;--secondary-light:#34d399;--background:#f8fafc;--surface:#fff;--text-dark:#1e293b;--text-muted:#64748b;--border:#e2e8f0;--danger:#ef4444;--success:#10b981;--warning:#f59e0b;--info:#3b82f6;--shadow-sm:0 1px 3px 0 #0000001a;--shadow-soft:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--shadow-hover:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000001a;--border-radius:20px;--border-radius-sm:12px;--glass-bg:#fffc;--glass-border:1px solid #ffffff4d}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text-dark);-webkit-font-smoothing:antialiased;font-family:Plus Jakarta Sans,sans-serif;line-height:1.6}h1,h2,h3,h4,h5,h6{color:var(--text-dark);letter-spacing:-.025em;align-items:center;gap:.75rem;font-weight:700;display:flex}a{color:var(--primary);text-decoration:none;transition:all .2s}.app-container{min-height:100vh;display:flex}.mobile-nav{z-index:1}.main-content{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:2.5rem}.soft-card{background:var(--surface);border-radius:var(--border-radius);box-shadow:var(--shadow-soft);border:1px solid var(--border);padding:2rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.soft-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}.soft-button{background:var(--primary);color:#fff;border-radius:var(--border-radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:.75rem;padding:.8rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .2s;display:inline-flex;box-shadow:0 4px 6px -1px #4f46e533}.soft-button:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 15px -3px #4f46e54d}.soft-button-secondary{color:var(--text-dark);box-shadow:none;background:#f1f5f9}.soft-button-secondary:hover{color:var(--text-dark);background:#e2e8f0}.soft-input{border:2px solid var(--border);border-radius:var(--border-radius-sm);width:100%;color:var(--text-dark);background:#fff;padding:.9rem 1.25rem;font-family:inherit;font-size:1rem;transition:all .2s}.soft-input:focus{border-color:var(--primary-light);outline:none;box-shadow:0 0 0 4px #4f46e51a}.label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.6rem;font-size:.9rem;font-weight:600;display:block}.modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:99999;background:#0f172a66;justify-content:center;align-items:flex-start;padding:4vh 1.5rem;display:flex;position:fixed;inset:0;overflow-y:auto}@media (width<=768px){.modal-overlay{padding-top:6rem}}.modal-content{background:var(--surface);border:1px solid var(--glass-border);border-radius:24px;width:100%;max-width:580px;margin-bottom:4vh;padding:2rem;animation:.3s ease-out modal-enter;position:relative;box-shadow:0 25px 70px -12px #0000004d}.modal-body,.modal-footer{border:none;padding:0;overflow:visible}.modal-header{justify-content:space-between;align-items:center;width:100%;padding:2rem 2.5rem 1rem;display:flex}.close-button{background:var(--background);border:1px solid var(--border);cursor:pointer;width:32px;height:32px;color:var(--text-muted);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;transition:all .2s;display:flex}.close-button:hover{background:var(--danger);color:#fff;border-color:var(--danger)}@keyframes modal-enter{0%{opacity:0;transform:scale(.95)translateY(20px)}to{opacity:1;transform:scale(1)translateY(0)}}.file-upload-zone{border:2px dashed var(--border);border-radius:var(--border-radius-sm);text-align:center;cursor:pointer;background:#f8fafc;flex-direction:column;align-items:center;gap:1rem;padding:2rem;transition:all .2s;display:flex}.file-upload-zone:hover{border-color:var(--primary);background:#f1f5f9}.file-upload-zone p{color:var(--text-muted);font-size:.9rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.animate-slide-up{animation:.4s ease-out forwards fadeIn}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:1s linear infinite spin}.flex-center{justify-content:center;align-items:center;display:flex}.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.w-full{width:100%}.mt-6{margin-top:1.5rem}.mb-6{margin-bottom:1.5rem}.flex{display:flex}.flex-col{flex-direction:column;display:flex}.justify-between{justify-content:space-between}.items-center{align-items:center}.text-center{text-align:center}.badge{text-transform:uppercase;border-radius:9999px;padding:.25rem .75rem;font-size:.75rem;font-weight:700}.badge-success{color:#166534;background:#dcfce7}.badge-warning{color:#92400e;background:#fef3c7}.badge-danger{color:#991b1b;background:#fee2e2}.badge-info{color:#1e40af;background:#dbeafe}.stat-icon-wrapper{border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex}@media (width<=1050px){h1{font-size:1.8rem!important}h2{font-size:1.5rem!important}.main-content{margin-left:0!important;padding:5.5rem 1.5rem 6rem!important}.sidebar{display:none!important}.mobile-nav{border-top:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff;justify-content:space-around;padding:.75rem .5rem;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 20px #0000000d;z-index:100!important;display:flex!important}body.has-modal .mobile-nav{display:none!important}.mobile-header{display:block!important}.dashboard-main-grid,.quick-actions-grid{grid-template-columns:1fr!important}.modal-content{width:95%!important;margin:10px!important;padding:1.5rem!important}div[style*=gridTemplateColumns]{grid-template-columns:1fr!important;gap:1rem!important}}.mobile-nav{display:none}.mobile-header{-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);z-index:999;border-bottom:1px solid var(--border);background:#ffffffd9;padding:.75rem 1rem;display:none;position:fixed;top:0;left:0;right:0}.mobile-header-content{justify-content:space-between;align-items:center;max-width:600px;margin:0 auto;display:flex}.mobile-header-label{text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);font-size:.65rem;font-weight:800;display:block}.mobile-header-title{color:var(--text-dark);margin:0;font-size:.95rem;font-weight:800}.mobile-change-btn{color:var(--primary);cursor:pointer;background:#eef2ff;border:1px solid #4f46e533;border-radius:8px;padding:.4rem .8rem;font-size:.75rem;font-weight:800}@media (width<=768px){.mobile-header{display:block!important}.main-content{padding-top:5rem!important}}.mobile-footer-watermark{text-align:center;border-top:1px solid var(--border);margin-top:2rem;padding:3rem 0 1rem;display:none}@media (width<=768px){.mobile-footer-watermark{display:block!important}}.mobile-nav-item{color:var(--text-muted);flex-direction:column;align-items:center;gap:.25rem;font-size:.65rem;font-weight:700;text-decoration:none;transition:all .2s;display:flex}.mobile-nav-item.active{color:var(--primary)}.dashboard-hero{background:linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);color:#fff;border-radius:32px;margin-bottom:2.5rem;padding:3rem;position:relative;overflow:hidden;box-shadow:0 20px 40px -10px #4f46e266}.hero-subtitle{opacity:.9;color:#fff;max-width:600px;font-size:1.1rem}.hero-bg-icon{opacity:.1;color:#fff;position:absolute;bottom:-40px;right:-20px;transform:rotate(-15deg)}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:2.5rem;display:grid}.stat-card{align-items:center;gap:1.5rem;padding:1.75rem;display:flex}.stat-icon{border-radius:16px;justify-content:center;align-items:center;padding:.85rem;display:flex}.stat-label{color:var(--text-muted);font-size:.85rem;font-weight:700}.stat-value{font-size:1.8rem;font-weight:800}.stat-link{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:0;font-size:.75rem;font-weight:700}.dashboard-main-grid{grid-template-columns:2fr 1fr;gap:2rem;display:grid}.dashboard-content-stack,.dashboard-sidebar-stack{flex-direction:column;gap:2rem;display:flex}.quick-actions-grid{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}.action-btn{background:var(--background)!important;border:1px solid #0000!important;flex-direction:row!important;justify-content:center!important;align-items:center!important;gap:.75rem!important;padding:1.5rem!important;transition:all .2s!important;display:flex!important}.action-btn:hover{transform:translateY(-2px);border-color:var(--primary)!important}.activity-list{flex-direction:column;gap:1rem;display:flex}.activity-item{background:var(--background);border-radius:20px;align-items:center;gap:1rem;padding:1.25rem;display:flex}.activity-icon{color:var(--primary);background:#fff;border-radius:12px;padding:.5rem}.calendar-widget{text-align:center;padding:2rem}.calendar-month{color:var(--danger);text-transform:uppercase;margin-bottom:.5rem;font-size:1rem;font-weight:800}.calendar-day{margin-bottom:.5rem;font-size:4rem;font-weight:900;line-height:1}.calendar-year{color:var(--text-muted);font-weight:600}.semester-info{padding:1.5rem;background:var(--primary)!important;color:#fff!important}.semester-info h4{color:#fff;margin-bottom:1rem}.student-list-item{alignItems:center;background:var(--background);borderRadius:16px;border:1px solid var(--border);gap:1rem;padding:1rem;display:flex}.student-avatar{borderRadius:50%;alignItems:center;justifyContent:center;width:40px;height:40px;color:var(--primary);fontWeight:800;background:#fff;display:flex}@media (width<=768px){.dashboard-hero{padding:2rem 1.5rem}.hero-subtitle{font-size:.9rem}.stats-grid{gap:1rem;grid-template-columns:1fr!important}.stat-card{flex-direction:row;align-items:center;gap:1.25rem;padding:1.25rem}.dashboard-main-grid,.quick-actions-grid{grid-template-columns:1fr!important}.action-btn{justify-content:flex-start!important;padding:1.25rem!important}.mobile-nav{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:9999!important;background:#fffffff2!important}.main-content{padding-bottom:6rem!important}.dashboard-hero{border-radius:24px!important;padding:1.5rem!important}.dashboard-hero h1{font-size:1.5rem!important}.stats-grid{gap:.5rem!important}.stat-card{padding:.75rem!important}.stat-label{font-size:.65rem!important}.stat-value{font-size:1.1rem!important}}.action-btn{border:1px solid var(--border)!important;cursor:pointer!important;border-radius:24px!important;transition:all .3s cubic-bezier(.4,0,.2,1)!important}.action-btn:hover{border-color:var(--primary)!important;background:#fff!important;transform:translateY(-3px)!important;box-shadow:0 10px 20px -5px #4f46e51a!important}@media (width<=992px){.profile-grid{grid-template-columns:1fr!important}}