@import "https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600;700&family=Nunito:wght@300;400;500;600;700;800&display=swap";:root{--primary:#0d3cd8;--primary-hover:#0b2da6;--bg-white:#fff;--bg-gray:#f9fafb;--bg-dark:#0a1128;--bg-darker:#111827;--text-dark:#000;--text-gray:#6b7280;--text-light:#f3f4f6;--border-color:#e5e7eb;--radius-lg:16px;--radius-md:12px;--radius-sm:8px;--radius-full:9999px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--shadow-hover:0 20px 25px -5px #0000001a, 0 10px 10px -5px #0000000a;--accent:#f59900;--accent-hover:#e08800;--accent-muted:#f599001a;--accent-border:#f5990038;--bg-hero:#070d1e;--bg-hero-2:#0c1428;--transition:all .3s cubic-bezier(.4, 0, .2, 1);--transition-spring:all .4s cubic-bezier(.34, 1.56, .64, 1)}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-dark);background-color:var(--bg-white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Nunito,system-ui,-apple-system,sans-serif;line-height:1.5}h1,h2,h3,h4,h5,h6{letter-spacing:0;font-family:Fredoka,sans-serif;font-weight:600;line-height:1.2}h1{margin-bottom:24px;font-size:56px;line-height:1.1}h2{margin-bottom:16px;font-size:36px}h3{margin-bottom:12px;font-size:20px}h4{margin-bottom:8px;font-size:18px}a{color:inherit;transition:var(--transition);text-decoration:none}button{cursor:pointer;transition:var(--transition);background:0 0;border:none;font-family:inherit}ul{list-style:none}@media (width<=768px){h1{margin-bottom:20px;font-size:40px}h2{margin-bottom:12px;font-size:28px}h3{font-size:18px}}@media (width<=480px){h1{font-size:32px}h2{font-size:24px}}.container{max-width:1200px;margin:0 auto;padding:0 24px}.section-padding{padding:80px 0}@media (width<=768px){.section-padding{padding:60px 0}}@media (width<=480px){.section-padding{padding:40px 0}.container{padding:0 16px}}.flex-center{justify-content:center!important;align-items:center!important;display:flex!important}.loader-container{width:100%;color:var(--portal-accent,#0d3cd8);justify-content:center;align-items:center;padding:60px;display:flex}.empty-state svg{opacity:.5;margin-bottom:16px}.empty-state p{max-width:300px;margin:0 auto;font-size:14px}.animate-spin{display:inline-block;animation:1s linear infinite spin!important}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.btn{border-radius:var(--radius-full);cursor:pointer;white-space:nowrap;letter-spacing:.01em;border:none;justify-content:center;align-items:center;min-height:48px;padding:0 28px;font-family:Nunito,sans-serif;font-size:15px;font-weight:700;text-decoration:none;transition:all .25s cubic-bezier(.4,0,.2,1);display:inline-flex}.btn-primary{background-color:var(--primary);color:#fff;box-shadow:0 2px 8px #0d3cd833}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 20px #0d3cd852}.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px #0d3cd833}.btn-accent{background:linear-gradient(135deg, #e08800 0%, var(--accent,#f59900) 100%);color:#0a0b12;font-weight:800;box-shadow:0 2px 12px #f5990047}.btn-accent:hover{filter:brightness(1.05);transform:translateY(-2px);box-shadow:0 6px 24px #f5990066}.btn-accent:active{transform:translateY(0);box-shadow:0 2px 12px #f5990047}.btn-outline{border:1.5px solid var(--border-color,#eceae6);color:var(--text-dark,#0a0e1a);background-color:#0000}.btn-outline:hover{border-color:var(--primary);color:var(--primary);background-color:#0d3cd80a;transform:translateY(-1px)}.btn-outline:active{transform:translateY(0)}.btn-outline-white{color:#fff;background-color:#0000;border:1.5px solid #ffffff4d}.btn-outline-white:hover{background-color:#ffffff1a;border-color:#ffffffb3;transform:translateY(-1px)}.btn-white{color:var(--primary);background-color:#fff;border:none;font-weight:800;box-shadow:0 2px 12px #0000001a}.btn-white:hover{background-color:#f8f7f5;transform:translateY(-2px);box-shadow:0 6px 24px #00000024}.btn-white:active{transform:translateY(0);box-shadow:0 2px 12px #0000001a}.btn-sm{min-height:36px;padding:0 18px;font-size:13px}.btn-lg{min-height:56px;padding:0 36px;font-size:17px}.btn.loading,.btn.disabled,.btn:disabled{opacity:.6;cursor:not-allowed;pointer-events:none;box-shadow:none!important;transform:none!important}.btn-loader{animation:1s linear infinite spin}.search-box{box-sizing:border-box!important;background:#fff!important;border:2px solid #f3f4f6!important;border-radius:14px!important;outline:none!important;align-items:center!important;width:100%!important;height:46px!important;transition:all .2s cubic-bezier(.4,0,.2,1)!important;display:flex!important;position:relative!important;overflow:hidden!important;box-shadow:0 1px 2px #0000000d!important}.search-box:focus,.search-box:active,.search-box:focus-within,.search-box :focus{-webkit-tap-highlight-color:transparent!important;outline:none!important}.search-box:focus-within{background:#fff!important;border-color:#8b5cf6!important;box-shadow:0 0 0 3px #8b5cf626!important}.search-box svg{color:#9ca3af!important;pointer-events:none!important;z-index:2!important;transition:all .2s!important;position:absolute!important;left:16px!important}.search-box:focus-within svg{color:#8b5cf6!important;transform:scale(1.1)!important}.search-box input{color:#111827!important;appearance:none!important;width:100%!important;height:100%!important;box-shadow:none!important;background:0 0!important;border:none!important;outline:none!important;margin:0!important;padding:0 16px 0 48px!important;font-family:inherit!important;font-size:14px!important}.search-box-no-glow:focus-within{box-shadow:none!important}.empty-state{text-align:center!important;color:#64748b!important;flex-direction:column!important;justify-content:center!important;align-items:center!important;width:100%!important;padding:60px 20px!important;display:flex!important}.empty-state svg{opacity:.25!important;color:#94a3b8!important;margin-bottom:16px!important}.empty-state h3{color:#1e293b!important;margin-bottom:8px!important;font-size:18px!important;font-weight:700!important}.empty-state p{max-width:320px!important;margin:0 auto!important;font-size:14px!important;line-height:1.6!important}.toast-container{z-index:9999;pointer-events:none;flex-direction:column;gap:10px;width:100%;max-width:420px;display:flex;position:fixed;top:24px;right:24px}.toast-item{pointer-events:auto;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);opacity:1;border-radius:14px;align-items:flex-start;gap:12px;padding:14px 18px;transition:all .32s cubic-bezier(.4,0,.2,1);display:flex;transform:translate(0);box-shadow:0 8px 30px #0000001a,0 2px 8px #0000000d}.toast-enter{animation:.32s cubic-bezier(.4,0,.2,1) forwards toast-slide-in}.toast-exit{animation:.32s cubic-bezier(.4,0,.2,1) forwards toast-slide-out}@keyframes toast-slide-in{0%{opacity:0;transform:translate(120%)}to{opacity:1;transform:translate(0)}}@keyframes toast-slide-out{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(120%)}}.toast-title{margin:0 0 2px;font-size:14px;font-weight:700;line-height:1.3}.toast-message{margin:0;font-size:13px;font-weight:500;line-height:1.4}.toast-close{cursor:pointer;opacity:.6;background:0 0;border:none;border-radius:6px;flex-shrink:0;margin-top:1px;padding:4px;transition:opacity .2s}.toast-close:hover{opacity:1}.filedropzone{text-align:center;cursor:pointer;background:#f9fafb;border:2px dashed #e5e7eb;border-radius:16px;padding:32px 24px;transition:all .25s cubic-bezier(.4,0,.2,1);position:relative}.filedropzone:hover{border-color:var(--portal-accent,#8b5cf6);background:var(--portal-accent-soft,#8b5cf60f)}.filedropzone-dragover{border-color:var(--portal-accent,#8b5cf6);background:var(--portal-accent-soft,#8b5cf61a);box-shadow:0 0 0 4px var(--portal-accent-soft,#8b5cf61a);transform:scale(1.01)}.filedropzone-done{cursor:default;background:#ecfdf5;border-style:solid;border-color:#10b981}.filedropzone-compact{padding:16px 20px}.filedropzone-disabled{opacity:.5;pointer-events:none}.filedropzone-icon{background:var(--portal-accent-soft,#8b5cf61a);width:56px;height:56px;color:var(--portal-accent,#8b5cf6);border-radius:16px;justify-content:center;align-items:center;margin:0 auto 14px;display:flex}.filedropzone-compact .filedropzone-icon{width:40px;height:40px;margin-bottom:8px}.filedropzone-text{color:#1e293b;margin:0 0 4px;font-size:15px;font-weight:700}.filedropzone-hint{color:#94a3b8;margin:0 0 16px;font-size:12px}.filedropzone-type-btns{justify-content:center;gap:12px;display:flex}.filedropzone-type-btn{color:#374151;cursor:pointer;background:#fff;border:1.5px solid #e5e7eb;border-radius:10px;align-items:center;gap:6px;padding:8px 16px;font-size:13px;font-weight:600;transition:all .2s;display:flex}.filedropzone-type-btn:hover{background:var(--portal-accent-soft,#ebf0ff);border-color:var(--portal-accent,#8b5cf6);color:var(--portal-accent,#8b5cf6)}.filedropzone-uploading{flex-direction:column;align-items:center;gap:10px;display:flex}.filedropzone-progress-track{background:#e5e7eb;border-radius:10px;width:200px;height:6px;margin-top:4px;overflow:hidden}.filedropzone-progress-fill{background:var(--portal-accent,#8b5cf6);border-radius:10px;height:100%;transition:width .3s}.filedropzone-success{text-align:left;align-items:center;gap:12px;display:flex}.filedropzone-filename{color:#065f46;white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:14px;font-weight:700;overflow:hidden}.filedropzone-clear{cursor:pointer;color:#6b7280;background:0 0;border:1.5px solid #d1d5db;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;transition:all .2s;display:flex}.filedropzone-clear:hover{color:#ef4444;background:#fef2f2;border-color:#ef4444}.skeleton-pulse{background:linear-gradient(110deg,#f1f5f9 30%,#e8ecf1 50%,#f1f5f9 70%) 0 0/200% 100%;animation:1.5s ease-in-out infinite skeleton-shimmer}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.skeleton-card{background:#fff;border:1.5px solid #f3f4f6;border-radius:16px;align-items:center;gap:16px;padding:20px 24px;display:flex}.skeleton-row{background:#fff;border:1.5px solid #f3f4f6;border-radius:14px;align-items:center;gap:14px;padding:14px 20px;display:flex}.pagination-controls{justify-content:center;align-items:center;gap:6px;margin-top:32px;padding:16px 0;display:flex}.pagination-btn{color:#374151;cursor:pointer;background:#fff;border:1.5px solid #e5e7eb;border-radius:10px;justify-content:center;align-items:center;min-width:36px;height:36px;padding:0 10px;font-size:13px;font-weight:700;transition:all .2s;display:flex}.pagination-btn:hover:not(:disabled){background:var(--portal-accent-soft,#8b5cf61a);border-color:var(--portal-accent,#8b5cf6);color:var(--portal-accent,#8b5cf6)}.pagination-btn:disabled{opacity:.4;cursor:not-allowed}.pagination-active{box-shadow:0 4px 12px #8b5cf640;background:var(--portal-accent,#8b5cf6)!important;color:#fff!important;border-color:var(--portal-accent,#8b5cf6)!important}.pagination-arrow{padding:0}.pagination-ellipsis{color:#94a3b8;-webkit-user-select:none;user-select:none;padding:0 4px;font-size:14px}.grade-input-wrapper{align-items:center;gap:12px;margin:20px 0;display:flex}.grade-input{text-align:center;background:#f9fafb;border:2px solid #e5e7eb;border-radius:14px;outline:none;width:100px;height:52px;font-family:inherit;font-size:20px;font-weight:800;transition:all .2s}.grade-input:focus{border-color:var(--portal-accent,#8b5cf6);box-shadow:0 0 0 4px var(--portal-accent-soft,#8b5cf61a);background:#fff}.grade-max{color:#94a3b8;font-size:16px;font-weight:700}.late-badge{color:#ef4444;text-transform:uppercase;letter-spacing:.05em;vertical-align:middle;background:#fef2f2;border-radius:6px;align-items:center;gap:4px;margin-left:8px;padding:2px 8px;font-size:10px;font-weight:800;display:inline-flex}.danger-text{color:#ef4444!important}.danger-text:hover{color:#dc2626!important}@media (width<=480px){.toast-container{max-width:none;top:12px;left:12px;right:12px}.filedropzone{padding:20px 16px}.filedropzone-type-btns{flex-direction:column;gap:8px}}.global-spinner{border:3px solid #ede9fe;border-top-color:#8b5cf6;border-radius:50%;width:40px;height:40px;animation:1s linear infinite spin}.hero-pattern{opacity:.05;background-image:radial-gradient(var(--primary) 1px, transparent 1px), radial-gradient(var(--primary) 1px, transparent 1px);z-index:1;pointer-events:none;background-position:0 0,20px 20px;background-size:40px 40px;position:absolute;inset:0}.navbar{background-color:var(--bg-white);border-bottom:1px solid var(--border-color);z-index:100;position:sticky;top:0}.navbar-container{justify-content:space-between;align-items:center;height:80px;display:flex}.navbar-left,.navbar-right{align-items:center;display:flex}.logo{cursor:pointer;align-items:center;gap:12px;margin-right:32px;display:flex}.logo-image{object-fit:contain;width:auto;height:40px}.logo-text{letter-spacing:-.5px;font-family:Fredoka,sans-serif;font-size:20px;font-weight:700}.nav-links{gap:24px;margin:0;padding:0;display:flex}.nav-links a{color:var(--text-gray);white-space:nowrap;font-size:15px;font-weight:500}.nav-links a:hover{color:var(--text-dark)}.search-bar{background-color:var(--bg-gray);border:1px solid var(--border-color);border-radius:var(--radius-full);width:240px;transition:var(--transition);align-items:center;margin-right:24px;padding:8px 16px;display:flex}.search-bar:focus-within{border-color:var(--primary);background-color:var(--bg-white);box-shadow:0 0 0 2px #0d3cd81a}.search-icon{color:var(--text-gray);margin-right:8px}.search-bar input{width:100%;color:var(--text-dark);background:0 0;border:none;outline:none;font-size:14px}.search-bar input::placeholder{color:var(--text-gray)}.auth-buttons{gap:12px;display:flex}.mobile-menu-btn{cursor:pointer;color:var(--text-dark);display:none}.mobile-auth-links{display:none}@media (width<=1024px){.search-bar,.auth-buttons{display:none}.mobile-menu-btn{z-index:1000;display:block}.nav-links{background-color:var(--bg-white);width:100vw;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;flex-direction:column;align-items:center;gap:32px;height:auto;margin-bottom:0;padding:32px 0;transition:all .3s ease-in-out;position:fixed;top:80px;left:0;right:0;transform:translateY(-100%)}.nav-links.active{opacity:1;visibility:visible;transform:translateY(0)}.nav-links a{font-size:18px}.mobile-auth-links{border-top:1px solid var(--border-color);flex-direction:column;gap:16px;width:80%;margin-top:16px;padding-top:24px;display:flex}.mobile-auth-links .btn{text-align:center;justify-content:center;width:100%;padding:14px;font-size:16px;display:flex}.mobile-auth-links .btn-primary{color:#fff!important}.mobile-auth-links .btn-outline{color:var(--text-dark)!important}}.footer{background:var(--bg-hero,#070d1e);color:#6b7280;border-top:1px solid #ffffff0f}.footer-inner{grid-template-columns:1.4fr 1fr;align-items:start;gap:80px;padding:64px 0 48px;display:grid}.footer-brand{flex-direction:column;gap:16px;display:flex}.footer-logo{align-items:center;gap:12px;display:flex}.footer-logo-image{object-fit:contain;filter:drop-shadow(0 0 2px #ffffff40);width:auto;height:40px}.footer-logo .logo-text{color:#f0ede8;font-family:Fredoka,sans-serif;font-size:20px;font-weight:600}.footer-desc{color:#4b5e76;max-width:320px;font-size:14px;line-height:1.75}.social-links{gap:10px;display:flex}.social-links a{color:#4b5e76;background:#ffffff08;border:1px solid #ffffff14;border-radius:50%;justify-content:center;align-items:center;width:38px;height:38px;transition:all .25s;display:flex}.social-links a:hover{border-color:var(--accent,#f59900);color:var(--accent,#f59900);background:#f5990014;transform:translateY(-2px)}.footer-nav{gap:56px;display:flex}.footer-nav-group h5.footer-nav-title{letter-spacing:.5px;text-transform:uppercase;color:#f0ede8;margin-bottom:18px;font-family:Fredoka,sans-serif;font-size:14px;font-weight:600}.footer-nav-group ul{flex-direction:column;gap:12px;margin:0;padding:0;list-style:none;display:flex}.footer-nav-group ul li a{color:#4b5e76;font-size:14px;text-decoration:none;transition:color .2s}.footer-nav-group ul li a:hover{color:#f0ede8}.footer-bottom{border-top:1px solid #ffffff0f;padding:20px 0}.copyright{color:#2e3d52;font-size:13px}@media (width<=768px){.footer-inner{grid-template-columns:1fr;gap:40px;padding:40px 0 32px}.footer-nav{flex-wrap:wrap;gap:32px}}.dash-root{--admin-primary:var(--portal-accent,#ef4444);--admin-primary-soft:var(--portal-accent-soft,#fef2f2);--admin-secondary:#0ea5e9;--admin-success:#10b981;--admin-warning:#f59e0b;--admin-danger:#ef4444;--admin-card-bg:#fff}.dash-two-col{grid-template-columns:1.6fr 1fr;gap:20px;display:grid}@media (width<=1200px){.dash-two-col{grid-template-columns:1fr}}.text-right{text-align:right!important}.text-center{text-align:center!important}.admin-modal-row{flex-direction:column;gap:8px;margin-bottom:20px;display:flex}.admin-modal-row label{color:#475569;font-size:13px;font-weight:600}.filter-select{color:#475569;cursor:pointer;background:#fff;border:1.5px solid #f1f5f9;border-radius:12px;outline:none;min-width:150px;height:48px;padding:0 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input::placeholder{color:#94a3b8}.toolbar-actions{flex-shrink:0;gap:12px;align-items:center!important;display:flex!important}.text-right-flex{justify-content:flex-end!important;gap:8px!important;display:flex!important}@media (width<=1024px){.admin-search-wrapper{flex-direction:column;align-items:stretch;gap:12px}.admin-input{min-width:0}.admin-table{min-width:700px}.page-header{flex-direction:column;gap:20px;margin-bottom:32px;align-items:stretch!important}.page-header-actions{flex-flow:wrap;gap:12px;width:100%;display:flex}.hw-btn{flex:1;min-width:160px}.admin-stats-grid{grid-template-columns:1fr;gap:16px}}@media (width<=640px){.page-header-actions{flex-direction:column}.hw-btn{width:100%}}.page-header{justify-content:space-between;align-items:flex-start;width:100%;margin-bottom:40px;display:flex}.page-header-text{flex:1}.page-header-actions{flex-shrink:0;gap:12px;margin-top:4px;display:flex}.table-wrapper{background:#fff;border:1px solid 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