@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap";:root{--color-primary:#003b6f;--color-primary-light:#00529b;--color-primary-dark:#00274c;--color-secondary:#ffd200;--color-secondary-light:#ffe047;--color-secondary-dark:#cca900;--bg-main:#f8fafc;--bg-card:#fff;--bg-footer:#0a192f;--color-lengua:#ff5722;--color-mates:#00bcd4;--color-medio:#4caf50;--color-fechas:#9c27b0;--text-main:#1e293b;--text-muted:#64748b;--border-color:#e2e8f0;--font-title:"Outfit", sans-serif;--font-body:"Inter", sans-serif;--shadow-sm:0 2px 4px #0000000d;--shadow-md:0 10px 15px -3px #0000000d, 0 4px 6px -4px #0000000d;--shadow-lg:0 20px 25px -5px #00000014, 0 8px 10px -6px #00000014;--shadow-glow:0 0 20px #ffd2004d;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--transition:all .3s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;font-family:var(--font-body);margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;line-height:1.6}h1,h2,h3,h4,h5,h6{font-family:var(--font-title);color:var(--color-primary-dark);font-weight:700}a{color:inherit;text-decoration:none}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--color-primary-light);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--color-primary)}.navbar{background-color:var(--color-primary);color:#white;z-index:100;box-shadow:var(--shadow-md);border-bottom:4px solid var(--color-secondary);justify-content:space-between;align-items:center;padding:1rem 2rem;display:flex;position:sticky;top:0}.logo-container{align-items:center;gap:.75rem;display:flex}.logo-text{color:#fff;font-size:1.95rem;font-family:var(--font-title);letter-spacing:-1px;font-weight:800}.logo-text span{color:var(--color-secondary)}.nav-links{align-items:center;gap:1.5rem;display:flex}.nav-link{color:#ffffffd9;border-radius:var(--radius-sm);transition:var(--transition);padding:.5rem 1rem;font-size:.95rem;font-weight:500}.nav-link:hover,.nav-link.active{color:#fff;background-color:#ffffff1a}.nav-btn-upload{background-color:var(--color-secondary);color:var(--color-primary-dark);font-weight:600;font-family:var(--font-title);border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-sm);transition:var(--transition);border:none;align-items:center;gap:.5rem;padding:.6rem 1.2rem;display:flex}.nav-btn-upload:hover{background-color:var(--color-secondary-light);box-shadow:var(--shadow-glow);transform:translateY(-2px)}.hero{background:radial-gradient(circle at 80% 20%, #ffd2001f 0%, transparent 50%), linear-gradient(135deg, var(--color-primary) 0%, #001f3f 100%);color:#fff;text-align:center;border-bottom:8px solid var(--color-secondary);padding:5rem 2rem;position:relative;overflow:hidden}.hero:after{content:"";background:var(--bg-main);clip-path:ellipse(60% 40px at 50% 40px);height:40px;position:absolute;bottom:0;left:0;right:0}.hero-content{z-index:10;max-width:800px;margin:0 auto;position:relative}.hero-subtitle{color:var(--color-secondary);font-family:var(--font-title);text-transform:uppercase;letter-spacing:2px;margin-bottom:1rem;font-size:1.1rem;font-weight:700;animation:.8s fadeInDown}.hero-title{color:#fff;letter-spacing:-1px;margin-bottom:1.5rem;font-size:3rem;line-height:1.2}.hero-description{color:#fffc;max-width:600px;margin-bottom:2.5rem;margin-left:auto;margin-right:auto;font-size:1.15rem}.search-container{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg), 0 0 0 4px #ffd20040;background:#fff;align-items:center;max-width:600px;margin:0 auto 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.filter-badge{background:var(--color-secondary);color:var(--color-primary-dark)}.resources-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;display:grid}.no-results{text-align:center;background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px dashed var(--border-color);padding:4rem 2rem}.no-results-icon{color:var(--text-muted);margin-bottom:1rem}.resource-card{background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid 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.card-badge-subject{color:var(--color-medio);background:#4caf501a}.fechas .card-badge-subject{color:var(--color-fechas);background:#9c27b01a}.card-badge-grade{background:var(--color-primary);color:#fff;border-radius:4px;padding:.25rem .6rem;font-size:.75rem;font-weight:600}.card-body{flex-grow:1;padding:1rem 1.5rem}.card-title{margin-bottom:.5rem;font-size:1.15rem;line-height:1.3}.card-description{color:var(--text-muted);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin-bottom:1rem;font-size:.875rem;display:-webkit-box;overflow:hidden}.card-footer{background:#fafafa;border-top:1px solid #f1f5f9;justify-content:space-between;align-items:center;padding:1rem 1.5rem 1.5rem;display:flex}.resource-type{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.75rem;font-weight:600}.view-toggle-container{border-radius:var(--radius-sm);border:1px solid 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.8rem;font-size:.85rem;font-weight:500;display:flex}.download-btn:hover{background:var(--color-primary-light)}.upload-section{border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--border-color);background:linear-gradient(135deg,#f8fafc 0%,#edf2f7 100%);margin-bottom:5rem;padding:3rem}.upload-grid{grid-template-columns:1fr 1fr;align-items:start;gap:3rem;display:grid}@media (width<=900px){.upload-grid{grid-template-columns:1fr;gap:2rem}}.upload-form{border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border-top:5px solid var(--color-secondary);background:#fff;padding:2.5rem}.form-group{margin-bottom:1.5rem}.form-label{color:var(--color-primary-dark);margin-bottom:.5rem;font-size:.9rem;font-weight:600;display:block}.form-input,.form-select,.form-textarea{border:1px solid var(--border-color);border-radius:var(--radius-sm);width:100%;transition:var(--transition);outline:none;padding:.75rem 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1.5rem;display:flex;position:relative}.link-card-logo-container{font-family:var(--font-title);letter-spacing:-1px;font-size:1.8rem;font-weight:800;line-height:1.2}.link-badge{background:var(--color-secondary);color:var(--color-primary-dark);word-wrap:break-word;border-radius:20px;max-width:100%;padding:.35rem .8rem;font-size:.75rem;font-weight:700;line-height:1.3;display:inline-block}.link-card-action{background-color:var(--color-secondary);color:var(--color-primary-dark);font-weight:700;font-family:var(--font-title);border-radius:var(--radius-md);text-align:center;transition:var(--transition);cursor:pointer;text-transform:uppercase;letter-spacing:.5px;border:none;justify-content:center;align-items:center;margin-top:auto;padding:.6rem 1.2rem;font-size:.9rem;display:flex}.link-card-action:hover{background-color:var(--color-secondary-light);box-shadow:var(--shadow-glow);transform:translateY(-2px)}.link-card-body{flex-direction:column;flex-grow:1;justify-content:space-between;padding:2rem;display:flex}.link-title{margin-bottom:.75rem;font-size:1.25rem}.link-description{color:var(--text-muted);margin-bottom:1.5rem;font-size:.9rem;line-height:1.5}.visit-btn{background:var(--color-primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);text-align:center;border:none;justify-content:center;align-items:center;gap:.5rem;padding:.75rem 1.2rem;font-size:.95rem;font-weight:600;display:flex}.visit-btn:hover{background:var(--color-primary-light);color:#fff}.links-list-container{flex-direction:column;gap:1rem;max-width:900px;margin:0 auto;display:flex}.link-list-row{border-radius:var(--radius-md);border:1px solid 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.link-list-action{background-color:var(--color-secondary-light);box-shadow:var(--shadow-sm)}@media (width<=640px){.link-list-row{flex-direction:column;align-items:flex-start;gap:1rem}.link-list-right{justify-content:space-between;width:100%}.link-list-description{white-space:normal;-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box}}.footer{background-color:var(--bg-footer);color:#ffffffb3;margin-top:5rem;padding:4rem 2rem 2rem}.footer-grid{grid-template-columns:2fr 1fr 1fr;gap:4rem;max-width:1200px;margin:0 auto 3rem;display:grid}@media (width<=768px){.footer-grid{grid-template-columns:1fr;gap:2rem}}.footer-brand h3{color:#fff;margin-bottom:1rem;font-size:1.5rem}.footer-brand p{max-width:400px;font-size:.95rem;line-height:1.6}.footer-links h4{color:#fff;margin-bottom:1.25rem;font-size:1.1rem}.footer-links ul{list-style:none}.footer-links li{margin-bottom:.75rem}.footer-links a{transition:var(--transition);font-size:.95rem}.footer-links a:hover{color:var(--color-secondary)}.footer-bottom{border-top:1px solid #ffffff1a;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding-top:2rem;font-size:.9rem;display:flex}@media (width<=600px){.footer-bottom{text-align:center;flex-direction:column;gap:1rem}}.toast{background:var(--color-primary);color:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:1000;border-left:5px solid var(--color-secondary);align-items:center;gap:.75rem;padding:1rem 1.5rem;animation:.3s slideInUp;display:flex;position:fixed;bottom:2rem;right:2rem}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}[data-theme=dark]{--bg-main:#0f172a;--bg-card:#1e293b;--border-color:#334155;--text-main:#f8fafc;--text-muted:#94a3b8;--color-primary-dark:#38bdf8}[data-theme=dark] body{background-color:var(--bg-main);color:var(--text-main)}[data-theme=dark] .navbar{border-bottom:4px solid var(--color-primary-light);background-color:#0f172a}[data-theme=dark] .hero{border-bottom:8px solid var(--color-primary-light);background:radial-gradient(circle at 80% 20%,#38bdf814 0%,#0000 60%),linear-gradient(135deg,#0f172a 0%,#1e293b 100%)}[data-theme=dark] .hero:after{background:var(--bg-main)}[data-theme=dark] .search-container{box-shadow:var(--shadow-lg), 0 0 0 3px #38bdf833;background:#1e293b}[data-theme=dark] .search-input{color:#f8fafc;background:#1e293b}[data-theme=dark] .search-icon{color:var(--text-muted)}[data-theme=dark] .filters-sidebar{background:var(--bg-card);border-color:var(--border-color)}[data-theme=dark] .filter-btn:hover{color:#38bdf8;background:#334155}[data-theme=dark] .filter-btn.active{color:#0f172a;background-color:#38bdf8}[data-theme=dark] .filter-badge{color:#f8fafc;background:#334155}[data-theme=dark] .filter-btn.active .filter-badge{color:#38bdf8;background:#0f172a}[data-theme=dark] .resource-card{background:var(--bg-card);border-color:var(--border-color)}[data-theme=dark] .card-footer{border-top:1px solid var(--border-color);background:#1e293b}[data-theme=dark] .list-container{background:var(--bg-card);border-color:var(--border-color)}[data-theme=dark] .list-row:hover{border-color:var(--border-color);background-color:#334155}[data-theme=dark] .list-cell-title{color:#38bdf8}[data-theme=dark] .load-more-btn{border-color:var(--border-color);color:#38bdf8;background:#1e293b}[data-theme=dark] .load-more-btn:hover{color:#0f172a;background:#38bdf8;border-color:#38bdf8}[data-theme=dark] .upload-section{border-color:var(--border-color);background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%)}[data-theme=dark] .upload-form{background:var(--bg-card);border-color:var(--border-color);border-top:5px solid #38bdf8}[data-theme=dark] .form-input,[data-theme=dark] .form-select,[data-theme=dark] .form-textarea{color:#f8fafc;background-color:#0f172a;border-color:#334155}[data-theme=dark] .form-input:focus,[data-theme=dark] .form-select:focus,[data-theme=dark] .form-textarea:focus{border-color:#38bdf8;box-shadow:0 0 0 3px #38bdf833}[data-theme=dark] .preview-placeholder{background:var(--bg-main);border-color:var(--border-color)}[data-theme=dark] .links-section{background:radial-gradient(circle at 10% 90%, #38bdf80d 0%, transparent 60%), linear-gradient(180deg, var(--bg-main) 0%, #0f172a 100%);border-color:var(--border-color)}[data-theme=dark] .link-card,[data-theme=dark] .link-list-row{background:var(--bg-card);border-color:var(--border-color)}[data-theme=dark] .link-list-row:hover{background-color:#334155;border-color:#38bdf8}[data-theme=dark] .link-list-title{color:#38bdf8}[data-theme=dark] .link-list-badge{color:#38bdf8;background:#38bdf81a}[data-theme=dark] .link-list-action{background-color:var(--color-primary-light);color:#fff}[data-theme=dark] .link-list-row:hover .link-list-action,[data-theme=dark] .submit-btn{color:#0f172a;background-color:#38bdf8}[data-theme=dark] .submit-btn:hover{background-color:#0ea5e9}[data-theme=dark] .download-btn{color:#0f172a;background-color:#38bdf8}[data-theme=dark] .download-btn:hover{background-color:#0ea5e9}[data-theme=dark] .quick-grade-btn{background:#ffffff0d;border-color:#ffffff26}[data-theme=dark] .quick-grade-btn:hover,[data-theme=dark] .quick-grade-btn.active{color:#0f172a;background:#38bdf8;border-color:#38bdf8}[data-theme=dark] .no-results{background:var(--bg-card);border-color:var(--border-color)}[data-theme=dark] .toast{color:#f8fafc;background:#1e293b;border-left-color:#38bdf8}[data-theme=dark] .nav-btn-upload,[data-theme=dark] .quick-grade-btn.active,[data-theme=dark] .quick-grade-btn:hover,[data-theme=dark] .link-card-action{color:#0f172a}@keyframes shimmer{0%{background-position:-200px 0}to{background-position:300px 0}}.skeleton{background:#e2e8f0 linear-gradient(90deg,#e2e8f0 0,#f1f5f9 50px,#e2e8f0 100px) 0 0/500px 100% no-repeat;border-radius:4px;animation:1.5s linear infinite shimmer}[data-theme=dark] .skeleton{background:#1e293b linear-gradient(90deg,#1e293b 0,#334155 50px,#1e293b 100px)}.skeleton-card{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-color);flex-direction:column;gap:1.2rem;height:280px;padding:1.5rem;display:flex}.skeleton-card-header{justify-content:space-between;align-items:center;display:flex}.skeleton-badge{width:70px;height:20px}.skeleton-title{width:85%;height:24px;margin-bottom:.5rem}.skeleton-text{width:100%;height:14px;margin-bottom:.4rem}.skeleton-text.short{width:60%}.skeleton-footer{justify-content:space-between;align-items:center;margin-top:auto;display:flex}.skeleton-button{border-radius:var(--radius-sm);width:90px;height:32px}.skeleton-list-container{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-color);flex-direction:column;gap:.75rem;padding:1.5rem;display:flex}.skeleton-list-row{border:1px solid #0000;grid-template-columns:180px 100px 1fr 120px 110px;align-items:center;gap:1rem;padding:.75rem 1rem;display:grid}.skeleton-cell{width:80%;height:20px}.fade-in{animation:.45s cubic-bezier(.4,0,.2,1) forwards fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.badge-offline{color:#fff;text-transform:uppercase;letter-spacing:.5px;background-color:#ff9800;border:1px solid #ffffff4d;border-radius:4px;align-items:center;gap:.25rem;margin-left:.5rem;padding:.25rem .5rem;font-size:.725rem;font-weight:700;animation:2s ease-in-out infinite blink;display:inline-flex}@keyframes blink{0%,to{opacity:.75}50%{opacity:1;box-shadow:0 0 10px #ff980080}}