:root{--primary:#1e293b;--secondary:#3b82f6;--accent:#f8fafc;--danger:#ef4444;--warning:#f59e0b;--success:#10b981;--text-main:#334155;--text-muted:#64748b;--bg-app:#f1f5f9;--sidebar-width:260px;--radius:12px;--shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1)}*{box-sizing:border-box;transition:all .2s ease}body{font-family:Inter,system-ui,-apple-system,sans-serif;margin:0;background:var(--bg-app);color:var(--text-main);line-height:1.5;overflow-x:hidden}body,html{min-height:100%}.hidden{display:none!important}#login-page{height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary) 0,#0f172a 100%);position:fixed;width:100%;z-index:9999}.login-box{background:#fff;padding:3rem 2rem;border-radius:var(--radius);width:90%;max-width:400px;text-align:center;box-shadow:0 25px 50px -12px rgba(0,0,0,.5)}.login-box input{width:100%;padding:12px 16px;margin:8px 0 20px;border:1px solid #e2e8f0;border-radius:8px;font-size:.95rem}#main-app{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--primary);color:#f1f5f9;display:flex;flex-direction:column;padding:1.5rem 1rem;flex-shrink:0}.sidebar .logo{font-size:1.5rem;font-weight:800;color:#fff;margin-bottom:2rem;padding:0 1rem;letter-spacing:-.025em}.sidebar ul{list-style:none;padding:0;flex-grow:1}.sidebar li{margin-bottom:4px}.nav-link{padding:12px 16px;border-radius:8px;display:flex;align-items:center;gap:12px;color:#94a3b8;font-weight:500;text-decoration:none}.nav-link.active,.nav-link:hover{background:hsla(0,0%,100%,.1);color:#fff}.nav-link.active{background:var(--secondary)}.content-area{flex-grow:1;padding:2.5rem;overflow-y:auto;background:var(--bg-app);width:100%}.content-area.no-padding{padding:0!important}.view-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}h1{font-size:1.875rem;font-weight:700;color:#0f172a;margin:0}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:1.5rem;gap:1.5rem;margin-bottom:2rem}.stat-card{background:#fff;padding:1.5rem;border-radius:var(--radius);box-shadow:var(--shadow);border-top:4px solid var(--secondary);display:flex;align-items:center;gap:1rem}.stat-card.danger{border-top-color:var(--danger)}.stat-card.warning{border-top-color:var(--warning)}.stat-card.success{border-top-color:var(--success)}.stat-icon{background:#f1f5f9;width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem}.stat-card.danger .stat-icon{color:var(--danger);background:#fef2f2}.stat-card.warning .stat-icon{color:var(--warning);background:#fffbeb}.stat-card.success .stat-icon{color:var(--success);background:#ecfdf5}.dashboard-main-grid{display:grid;grid-template-columns:2fr 1fr;grid-gap:1.5rem;gap:1.5rem;margin-top:2rem}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));grid-gap:1rem;gap:1rem;margin-top:1.5rem}.course-card{background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:1rem;text-align:center;cursor:pointer}.course-card:hover{border-color:var(--secondary);transform:translateY(-2px)}.table-container{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}table{width:100%;border-collapse:collapse}th{background:#f8fafc;text-align:left;font-size:.75rem;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid #e2e8f0}td,th{padding:16px}td{border-bottom:1px solid #f1f5f9;font-size:.9rem}tr:hover{background:#f8fafc}.btn-block,.btn-primary,.btn-success,.btn-wa{padding:10px 20px;border-radius:8px;border:none;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:var(--secondary);color:#fff}.btn-success{background:var(--success);color:#fff}.btn-block{width:100%}.btn-wa{background:#25d366;color:#fff;padding:8px;border-radius:50%;width:35px;height:35px}.btn-outline-action{padding:10px 20px;border-radius:8px;border:1px solid #cbd5e1;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#fff;color:var(--text-main)}.student-link{color:var(--primary);text-decoration:none}.student-link:hover{color:var(--secondary)}.btn-icon-link{text-decoration:none}.btn-icon{border:none;background:#eff6ff;color:var(--secondary);width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.alert-box{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:#fff;border-radius:var(--radius);margin-bottom:10px;border-left:5px solid #ddd;box-shadow:0 2px 4px rgba(0,0,0,.05)}.alert-box.danger{border-left-color:var(--danger);background:#fef2f2}.alert-box.warning{border-left-color:var(--warning);background:#fffbeb}.manual-validation-card,.qr-container-card{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow)}.attendance-bar{height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden;margin:8px 0}.attendance-fill{height:100%;background:var(--success)}.attendance-fill.warning{background:var(--warning)}.attendance-fill.danger{background:var(--danger)}#qr-progress{height:4px;transition:width .1s linear}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(15,23,42,.7);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:1000}.modal-content{background:#fff;width:90%;max-width:500px;border-radius:16px;padding:2.5rem;box-shadow:0 20px 25px -5px rgba(0,0,0,.2);position:relative}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.student-result-card{margin-top:1.5rem;padding:1.5rem;border-radius:12px;animation:fadeIn .3s ease}.attendance-main-container{display:grid;grid-template-columns:1fr 1.5fr;grid-gap:2rem;gap:2rem;align-items:start}.attendance-mode-switcher{display:inline-flex;gap:12px;margin-bottom:1.5rem;padding:8px;background:#fff;border-radius:16px;box-shadow:var(--shadow)}.mode-btn{border:0;background:transparent;color:var(--text-muted);border-radius:12px;padding:12px 18px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:10px}.mode-btn.active{background:var(--primary);color:#fff}.report-panel-wide{grid-column:1/-1}.student-report-shell{display:grid;grid-template-columns:320px minmax(0,1fr);grid-gap:1.5rem;gap:1.5rem}.report-card,.student-profile-card{background:#fff;border-radius:20px;box-shadow:var(--shadow)}.student-profile-card{padding:1.5rem;display:flex;flex-direction:column;align-items:center;text-align:center;gap:1rem}.student-profile-card img{width:132px;height:132px;border-radius:50%;box-shadow:var(--shadow)}.student-profile-card h2{margin:0;color:var(--primary)}.student-course-chip{margin:0;background:#dbeafe;color:#1d4ed8;padding:8px 14px;border-radius:999px;font-weight:700}.student-quick-info{width:100%;display:grid;grid-gap:10px;gap:10px}.student-quick-info div{background:#f8fafc;border-radius:14px;padding:12px;text-align:left}.definition-grid span,.student-quick-info span{display:block;color:var(--text-muted);font-size:.82rem;margin-bottom:4px}.student-report-main{min-width:0}.student-report-header{align-items:flex-start;gap:1rem}.student-report-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.student-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:1rem}.student-tab{border:none;background:#fff;color:var(--text-muted);border-radius:999px;padding:12px 18px;font-weight:700;box-shadow:var(--shadow);cursor:pointer}.student-tab.active{background:var(--primary);color:#fff}.report-grid-two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:1rem;gap:1rem;margin-bottom:1rem}.report-card{padding:1.5rem}.definition-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:14px;gap:14px}.movement-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:1rem;gap:1rem}.timeline-list{margin:0;padding-left:1.1rem;color:var(--text-main)}.timeline-list li+li{margin-top:.75rem}.section-title-row{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem}.tutors-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:1rem;gap:1rem}.tutor-card{padding:1rem;border:1px solid #dbe3ef;border-radius:16px;background:#f8fafc}.report-card h3,.report-card h4,.tutor-card h4{margin-top:0}.alert-stage-box{padding:1rem;border-radius:16px;margin-bottom:1rem}.alert-stage-label{display:inline-flex;margin-bottom:.5rem;padding:4px 10px;border-radius:999px;background:hsla(0,0%,100%,.65);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em}.alert-stage-box.green{background:#dcfce7;color:#166534}.alert-stage-box.yellow{background:#fef3c7;color:#92400e}.alert-stage-box.orange{background:#ffedd5;color:#9a3412}.alert-stage-box.red{background:#fee2e2;color:#991b1b}.alert-stage-detail{padding:1rem;border-radius:14px;border:1px solid transparent}.alert-stage-detail p{margin:0;font-weight:600}.alert-stage-detail.green{background:#f0fdf4;border-color:#bbf7d0;color:#166534}.alert-stage-detail.yellow{background:#fffbeb;border-color:#fde68a;color:#92400e}.alert-stage-detail.orange{background:#fff7ed;border-color:#fdba74;color:#9a3412}.alert-stage-detail.red{background:#fef2f2;border-color:#fca5a5;color:#991b1b}.summary-cards-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px;gap:12px}.summary-pill{padding:1rem;border-radius:16px}.summary-pill span{display:block;font-size:.85rem;margin-bottom:6px}.summary-pill strong{font-size:1.35rem}.detail-table td,.detail-table th{text-align:left}.attendance-legend.compact{margin-bottom:1rem}.qr-container-card{background:#fff;padding:3rem 2rem;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;display:flex;flex-direction:column;align-items:center}.qr-wrapper{background:#f8fafc;padding:2rem;border-radius:20px;border:2px solid #e2e8f0;margin-bottom:1.5rem;width:100%;max-width:280px}.qr-refresh-bar{width:100%;height:6px;background:#e2e8f0;margin-top:20px;border-radius:10px;overflow:hidden}#qr-progress{height:100%;background:var(--secondary);width:100%}.token-badge{background:var(--primary);color:#fff;padding:8px 16px;border-radius:20px;font-family:monospace;font-weight:700;margin-top:15px}.manual-validation-card{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);min-height:450px}.classroom-panel-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.classroom-selector{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));grid-gap:12px;gap:12px;margin:1.5rem 0}.classroom-selector.hidden{display:none}.report-header{margin-bottom:1rem}.attendance-legend{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:1rem;color:var(--text-muted);font-size:.92rem}.report-toolbar{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1rem}.report-filters{display:grid;grid-template-columns:minmax(220px,1.4fr) minmax(180px,.8fr);grid-gap:12px;gap:12px;flex:1 1}.filter-control{display:flex;flex-direction:column;gap:6px;font-size:.88rem;color:var(--text-muted);font-weight:600}.filter-input-wrap{display:flex;align-items:center;gap:10px;background:#f8fafc;border:1px solid #dbe3ef;border-radius:12px;padding:0 12px}.filter-input-wrap i{color:var(--text-muted)}.filter-control select,.filter-input-wrap input{width:100%;height:44px;border:none;background:transparent;outline:none;color:var(--text-main);font-size:.95rem}.filter-control select{border:1px solid #dbe3ef;background:#f8fafc;border-radius:12px;padding:0 12px}.report-actions{display:flex;gap:10px}.report-action-btn{height:44px;border:none;border-radius:12px;padding:0 16px;color:#fff;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:8px}.report-action-btn.pdf{background:#dc2626}.report-action-btn.excel{background:#15803d}.report-empty-state{margin-top:1rem;padding:1rem;border-radius:12px;border:1px dashed #cbd5e1;background:#f8fafc;color:var(--text-muted);text-align:center}.report-table-wrapper{width:100%;overflow-x:auto;border:1px solid #dbe3ef;border-radius:16px;background:#fff}.attendance-report-table{width:max-content;min-width:100%;border-collapse:separate;border-spacing:0}.attendance-report-table thead th{position:-webkit-sticky;position:sticky;top:0;z-index:3;background:#eaf1fb;white-space:nowrap}.attendance-report-table thead th small{display:block;font-size:.7rem;color:var(--text-muted);text-transform:none}.attendance-report-table thead th.holiday-col{background:#fef3c7;color:#92400e}.attendance-report-table td,.attendance-report-table th{padding:12px 10px;text-align:center}.attendance-report-table .student-name-col{min-width:220px;text-align:left}.attendance-report-table .student-dni-col{min-width:120px}.sticky-col{position:-webkit-sticky;position:sticky;z-index:2;background:#fff}.attendance-report-table thead .sticky-col{background:#eaf1fb;z-index:4}.student-name-col.sticky-col{left:0}.student-dni-col.sticky-col{left:220px}.status-cell{font-weight:700;min-width:52px}.status-p{background:#ecfdf5;color:#047857}.status-a{background:#fef2f2;color:#b91c1c}.status-aj{background:#fff7ed;color:#c2410c}.status-t{background:#eff6ff;color:#1d4ed8}.holiday-col,.status-f{background:#fef3c7;color:#92400e}.summary-col{font-weight:800}.summary-attendance{background:#dcfce7;color:#166534}.summary-justified{background:#ffedd5;color:#9a3412}.summary-unjustified{background:#fee2e2;color:#991b1b}.summary-late{background:#dbeafe;color:#1d4ed8}.summary-total-absence{background:#ede9fe;color:#5b21b6}.course-selector-btn{border:1px solid #dbe3ef;background:#f8fafc;color:var(--text-main);border-radius:14px;padding:16px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:6px}.course-selector-btn span{color:var(--text-muted);font-size:.9rem}.course-selector-btn.active,.course-selector-btn:hover{border-color:var(--secondary);background:#eef4ff}.classroom-session{margin-top:1rem}.classroom-progress-card{background:#f8fafc;border:1px solid #dbe3ef;border-radius:16px;padding:16px;margin-bottom:1rem}.classroom-progress-head{display:flex;justify-content:space-between;gap:1rem;margin-bottom:12px}.classroom-progress-bar{height:10px;background:#dbe3ef;border-radius:999px;overflow:hidden}.classroom-progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--secondary),#60a5fa)}.student-spotlight-card{display:flex;align-items:center;gap:1.5rem;padding:1.5rem;border-radius:20px;background:linear-gradient(135deg,#eff6ff,#fff);border:1px solid #dbeafe;margin-bottom:1rem}.student-spotlight-card img{width:96px;height:96px;border-radius:50%;box-shadow:var(--shadow)}.student-spotlight-body h2{margin:8px 0;font-size:1.8rem;color:var(--primary)}.attendance-meta,.student-chip{display:inline-flex;align-items:center;gap:8px}.student-chip{background:#dbeafe;color:#1d4ed8;border-radius:999px;padding:6px 12px;font-weight:700;font-size:.85rem}.attendance-meta{margin:0;color:var(--text-muted);font-weight:600}.classroom-actions{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}.btn-large{min-height:56px;font-size:1rem}.btn-danger-solid{background:var(--danger);color:#fff;border:none;border-radius:8px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}.classroom-finished{margin-top:2rem;border-radius:20px;background:#f8fafc;border:1px dashed #cbd5e1;padding:2rem;text-align:center}.classroom-finished i{color:var(--success)}.classroom-finished-actions{margin-top:1rem}.token-badge.soft{background:#e2e8f0;color:var(--primary)}.search-box{display:flex;gap:10px;margin:1.5rem 0}.search-box input{flex-grow:1;padding:12px 16px;border:1px solid #e2e8f0;border-radius:8px;font-size:1rem}.student-result-card{background:#f0f7ff;border:2px solid var(--secondary);border-radius:16px;padding:2rem;margin-top:1rem}.student-info{display:flex;align-items:center;gap:1.5rem;margin-bottom:2rem}.student-info img{width:80px;height:80px;border-radius:50%;border:3px solid #fff;box-shadow:var(--shadow)}.student-info h4{font-size:1.4rem;margin:0;color:var(--primary)}.action-buttons-grid{display:grid;grid-template-columns:2fr 1fr 1fr;grid-gap:10px;gap:10px}.btn-danger-outline,.btn-outline{background:#fff;border:1px solid #cbd5e1;color:var(--text-main);padding:10px;border-radius:8px;cursor:pointer;font-weight:600}.btn-outline:hover{border-color:var(--secondary);color:var(--secondary)}.btn-danger-outline:hover{border-color:var(--danger);color:var(--danger);background:#fef2f2}.placeholder-text{text-align:center;color:#94a3b8;margin-top:4rem}@media (max-width:980px){#main-app{flex-direction:column;height:auto;min-height:100vh}.sidebar{width:100%;padding:1rem}.sidebar nav ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:8px;gap:8px}.sidebar li{margin-bottom:0}.content-area{padding:1rem}.view{width:100%}.attendance-mode-switcher{display:grid;grid-template-columns:1fr 1fr 1fr;width:100%}.report-toolbar{flex-direction:column;align-items:stretch}.definition-grid,.movement-columns,.report-grid-two,.student-report-shell,.tutors-grid{grid-template-columns:1fr}.student-report-actions{width:100%;justify-content:flex-start}.report-filters{grid-template-columns:1fr 1fr}.report-actions{justify-content:stretch}.report-action-btn{flex:1 1}.mode-btn,.report-action-btn{justify-content:center}.attendance-main-container{grid-template-columns:1fr;gap:1rem}.classroom-panel-header,.classroom-progress-head,.student-spotlight-card{flex-direction:column;align-items:flex-start}.action-buttons-grid,.classroom-actions{grid-template-columns:1fr}.manual-validation-card,.qr-container-card{width:100%;min-height:auto;padding:1.25rem}.qr-wrapper{max-width:100%}.classroom-finished,.classroom-progress-card,.student-spotlight-card{width:100%}.student-dni-col.sticky-col{left:180px}.attendance-report-table .student-name-col{min-width:180px}.student-spotlight-card img{width:88px;height:88px}.student-spotlight-body{width:100%}.student-spotlight-body h2{font-size:1.5rem}}@media (max-width:640px){body{font-size:15px}.sidebar nav ul{grid-template-columns:1fr}.view-header{flex-direction:column;align-items:flex-start;gap:.75rem}.attendance-mode-switcher{grid-template-columns:1fr}.attendance-legend{flex-direction:column;gap:6px}.student-tabs{display:grid;grid-template-columns:1fr 1fr}.report-filters{grid-template-columns:1fr}.report-actions{flex-direction:column}.content-area{padding:.75rem}.classroom-finished,.classroom-progress-card,.manual-validation-card,.qr-container-card,.student-spotlight-card{padding:1rem;border-radius:16px}.classroom-selector{grid-template-columns:1fr}.attendance-report-table td,.attendance-report-table th{padding:10px 8px;font-size:.82rem}.attendance-report-table .student-name-col{min-width:150px}.student-dni-col.sticky-col{left:150px}.search-box{flex-direction:column}.classroom-actions button,.search-box button,.search-box input{width:100%}}