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480px){.login-page{padding:16px}.login-container{padding:24px;max-width:100%}.login-logo{width:60px;height:60px;font-size:2rem}.login-title{font-size:1.5rem}.login-subtitle{font-size:.9rem}.form-input{padding:12px 14px;font-size:.9rem}.btn-login{padding:12px 20px;font-size:.95rem}.login-info{padding:16px}.login-info h3{font-size:.9rem}.credential-item{font-size:.8rem;flex-direction:column;gap:2px;text-align:center}}@media (min-width: 481px) and (max-width: 768px){.login-container{padding:24px 28px}.login-logo{width:70px;height:70px;font-size:2.2rem}.login-title{font-size:1.6rem}}@media (min-width: 769px) and (max-width: 1024px){.login-container{padding:28px 36px;max-width:440px}.login-logo{width:80px;height:80px;font-size:2.5rem}.login-title{font-size:2rem}}@media (min-width: 1025px){.login-container{padding:30px 44px;max-width:480px}}.login-container:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.form-input.error{border-color:#ef4444;box-shadow:0 0 0 3px #ef44441a}.form-input.success{border-color:#10b981;box-shadow:0 0 0 3px #10b9811a}.form-input:focus,.btn-login:focus{outline:2px solid var(--primary-color);outline-offset:2px}@media (prefers-color-scheme: dark){.login-container{background:#fff;border-color:#eef2ff}.login-title{color:var(--primary-color)}.login-subtitle{color:#6b7280}.login-info{background:#0003;border-color:#ffffff1a}}.dashboard{min-height:100vh;padding:20px 0}.dashboard-loading{display:flex;align-items:center;justify-content:center;min-height:100vh}.loading-container{text-align:center;color:var(--text-primary)}.loading-spinner{width:40px;height:40px;border:4px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:var(--primary-color);animation:spin 1s ease-in-out infinite;margin:0 auto 16px}.dashboard-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;padding:24px;background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--border-radius)}.dashboard-title h1{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:8px}.dashboard-title p{color:var(--text-secondary);font-size:1rem}.año-selector{margin-top:16px;display:flex;align-items:center;gap:12px}.año-selector label{font-weight:600;color:var(--text-primary);font-size:.95rem}.select-año{padding:10px 36px 10px 12px;border:1px solid var(--border-color);border-radius:6px;background:#fff;color:var(--text-primary);font-size:.95rem;font-weight:600;cursor:pointer;transition:var(--transition);appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-secondary) 50%),linear-gradient(135deg,var(--text-secondary) 50%,transparent 50%);background-position:calc(100% - 18px) calc(50% - 3px),calc(100% - 12px) calc(50% - 3px);background-size:6px 6px,6px 6px;background-repeat:no-repeat}.select-año:hover{border-color:var(--primary-color)}.select-año:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.dashboard-time{text-align:right}.current-time{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:8px;padding:16px;min-width:200px}.time-display{font-size:1.8rem;font-weight:700;color:var(--primary-color);font-family:Courier New,monospace;margin-bottom:4px}.date-display{font-size:.9rem;color:var(--text-secondary);text-transform:capitalize}.stats-grid{display:grid;gap:20px;margin-bottom:32px}.stats-grid.grid-1{grid-template-columns:1fr}.stats-grid.grid-2{grid-template-columns:repeat(2,1fr)}.stats-grid.grid-4{grid-template-columns:repeat(4,1fr)}.stat-card{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--border-radius);padding:24px;text-align:center;transition:var(--transition);cursor:pointer;position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s}.stat-card:hover:before{left:100%}.stat-icon{font-size:3rem;margin-bottom:16px;display:block;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.stat-content{position:relative;z-index:1}.stat-number{font-size:2.2rem;font-weight:700;color:var(--primary-color);margin-bottom:8px;line-height:1.2}.stat-label{font-size:.95rem;color:var(--text-secondary);font-weight:500;text-transform:uppercase;letter-spacing:.5px}.charts-grid{display:grid;gap:24px;margin-bottom:32px}.charts-grid.grid-1{grid-template-columns:1fr}.charts-grid.grid-2{grid-template-columns:repeat(2,1fr)}.chart-container{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--border-radius);padding:24px;transition:var(--transition)}.chart-container:hover{transform:translateY(-2px);box-shadow:var(--shadow-medium)}.chart-title{font-size:1.2rem;font-weight:600;color:var(--text-primary);margin-bottom:20px;text-align:center}.chart-wrapper{height:300px;position:relative}.grados-section{margin-bottom:32px}.grados-section h2{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:24px;display:flex;align-items:center;gap:12px;position:relative}.grados-section h2:after{content:"";position:absolute;left:0;bottom:-8px;width:120px;height:4px;border-radius:999px;background:linear-gradient(90deg,#4f46e5,#7c3aed,#06b6d4,#22c55e)}.ranking-section{margin:28px 0}.ranking-section h2{font-size:1.5rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:8px;margin-bottom:16px}.ranking-grid{display:grid;gap:16px;grid-template-columns:1fr}.ranking-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--border-radius);box-shadow:var(--shadow);overflow-x:auto;-webkit-overflow-scrolling:touch}.ranking-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 16px;border-bottom:1px solid var(--glass-border)}.ranking-header h3{margin:0;font-size:1rem;font-weight:700;color:var(--text-primary)}.ranking-actions{display:flex;gap:8px;align-items:center;flex-wrap:nowrap}.meses-section{margin:28px 0}.meses-section h2{font-size:1.5rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:8px;margin-bottom:8px}.meses-actions{display:flex;justify-content:flex-end;gap:8px;margin-bottom:8px}.grados-grid{display:grid;gap:20px}.grados-grid.grid-1{grid-template-columns:1fr}.grados-grid.grid-2{grid-template-columns:repeat(2,1fr)}.grados-grid.grid-3{grid-template-columns:repeat(3,1fr)}.grado-card{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid 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var(--glass-border)}.grado-stats{margin-bottom:16px}.grado-stat{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.9rem}.grado-stat-label{color:var(--text-secondary);font-weight:500}.grado-stat-value{color:var(--text-primary);font-weight:600}.grado-progress{margin-top:16px}.progress-bar{width:100%;height:8px;background:#fff3;border-radius:4px;overflow:hidden;margin-bottom:8px}.progress-fill{height:100%;background:linear-gradient(90deg,#10b981,#059669);border-radius:4px;transition:width .5s ease}.progress-text{font-size:.8rem;color:var(--text-secondary);text-align:center;display:block}.meses-section{margin-bottom:32px}.meses-section h2{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:24px;display:flex;align-items:center;gap:12px}.ranking-card{background:#fff;border:1px solid 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16px;border-radius:6px;transition:var(--transition)}.navbar-link:hover,.navbar-link.active{background:#ffffff1a;color:var(--primary-color)}.navbar-toggle{display:none;background:none;border:none;font-size:1.5rem;color:var(--text-primary);cursor:pointer;padding:8px}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:16px}.modal{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--border-radius);box-shadow:var(--shadow-heavy);max-width:500px;width:100%;max-height:90vh;overflow-y:auto}.modal-header{padding:20px 24px 16px;border-bottom:1px solid var(--glass-border);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:1.2rem;font-weight:700;color:var(--text-primary)}.modal-close{background:none;border:none;font-size:1.5rem;color:var(--text-secondary);cursor:pointer;padding:4px}.modal-body{padding:24px}.modal-footer{padding:16px 24px 20px;border-top:1px solid var(--glass-border);display:flex;gap:12px;justify-content:flex-end}.chart-container{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--border-radius);padding:20px;margin-bottom:20px}.chart-title{font-size:1.1rem;font-weight:600;margin-bottom:16px;color:var(--text-primary);text-align:center}.upload-area{border:2px dashed var(--glass-border);border-radius:var(--border-radius);padding:40px 20px;text-align:center;background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:var(--transition);cursor:pointer}.upload-area:hover,.upload-area.dragover{border-color:var(--primary-color);background:#1976d21a}.upload-icon{font-size:3rem;color:var(--primary-color);margin-bottom:16px}.upload-text{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:8px}.upload-subtext{color:var(--text-secondary);font-size:.9rem}@media (max-width: 480px){.container{padding:0 12px}.glass-card,.stat-card{padding:16px}.stat-icon{font-size:2rem}.stat-number{font-size:1.5rem}.btn{padding:10px 16px;font-size:.85rem}.navbar-nav{display:none}.navbar-toggle{display:block}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.modal{margin:16px;max-width:none}.table-container{font-size:.8rem}.table th,.table td{padding:8px 12px}}@media (min-width: 481px) and (max-width: 768px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.navbar-nav{gap:16px}.navbar-link{padding:6px 12px;font-size:.9rem}}@media (min-width: 769px) and (max-width: 1024px){.grid-4{grid-template-columns:repeat(3,1fr)}.navbar-nav{gap:20px}.stat-card{padding:18px}}@media (min-width: 1025px) and (max-width: 1200px){.container{max-width:1000px}}@media (min-width: 1201px){.container{max-width:1200px}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.fade-in{animation:fadeIn .5s ease-out}.slide-in{animation:slideIn .5s ease-out}.pulse{animation:pulse 2s infinite}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.mb-4{margin-bottom:32px}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}.p-1{padding:8px}.p-2{padding:16px}.p-3{padding:24px}.p-4{padding:32px}.d-none{display:none}.d-block{display:block}.d-flex{display:flex}.d-grid{display:grid}.w-100{width:100%}.h-100{height:100%}@media (max-width: 768px){.d-mobile-none{display:none}.d-mobile-block{display:block}.d-mobile-flex{display:flex}}@media (min-width: 769px){.d-tablet-none{display:none}.d-tablet-block{display:block}.d-tablet-flex{display:flex}}@media (min-width: 1025px){.d-desktop-none{display:none}.d-desktop-block{display:block}.d-desktop-flex{display:flex}}.loading{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:var(--primary-color);animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0,#f0f0f0 75%);background-size:200% 100%;animation:loading 1.5s infinite}@keyframes loading{0%{background-position:200% 0}to{background-position:-200% 0}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#ffffff1a;border-radius:4px}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--secondary-color)}