:root{--primary-color:#2563eb;--primary-hover:#1d4ed8;--success-color:#10b981;--success-hover:#059669;--warning-color:#f59e0b;--error-color:#ef4444;--error-hover:#dc2626;--text-primary:#111827;--text-secondary:#6b7280;--text-inverse:#fff;--background-primary:#fff;--background-secondary:#f9fafb;--background-tertiary:#f3f4f6;--border-color:#e5e7eb;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1);--border-radius:0.5rem;--focus-ring:0 0 0 3px rgba(37,99,235,0.1);--font-xs:0.75rem;--font-sm:0.875rem;--font-base:1rem;--font-lg:1.125rem;--font-xl:1.25rem;--font-2xl:1.5rem;--font-3xl:1.875rem;--font-4xl:2.25rem}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;line-height:1.6;color:var(--text-primary);font-size:var(--font-base);font-weight:400}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.25}h1{font-size:var(--font-4xl)}h2{font-size:var(--font-3xl)}h3{font-size:var(--font-2xl)}h4{font-size:var(--font-xl)}h5{font-size:var(--font-lg)}h6{font-size:var(--font-base)}.content-card,.modern-form,.modern-table,.page-header,.alert.modern-alert{background:var(--background-primary);border-radius:var(--border-radius);box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.content-card{max-width:95vw;margin:0 auto;overflow:hidden}.content-card:hover{box-shadow:var(--shadow-md)}.page-header{padding:1rem 1.5rem;margin-bottom:1rem}.page-title{font-size:var(--font-2xl);font-weight:600;color:var(--text-primary);margin:0;line-height:1.2}.sidebar-nav{background:var(--background-primary);border-right:1px solid var(--border-color);box-shadow:var(--shadow-sm);width:250px;height:100vh;position:sticky;top:0}.sidebar-brand{padding:1rem;border-bottom:1px solid var(--border-color);margin-bottom:1rem}.sidebar-brand:hover{text-decoration:none}.brand-logo{width:40px;height:40px;border-radius:var(--border-radius)}.brand-text{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0;line-height:1.2}.brand-subtitle{font-size:var(--font-xs);color:var(--text-secondary);font-weight:500;text-transform:uppercase;letter-spacing:0.05em;margin-top:0.25rem}.sidebar-nav .nav-link{color:var(--text-secondary);padding:0.75rem 1rem;margin:0.25rem 0;border-radius:var(--border-radius);font-weight:500;font-size:var(--font-sm)}.sidebar-nav .nav-link:hover{color:var(--text-primary);background-color:var(--background-secondary)}.sidebar-nav .nav-link.active{color:var(--primary-color);background-color:var(--background-tertiary);font-weight:600}.main-content{background-color:var(--background-secondary);min-height:100vh;width:100%;max-width:100vw;overflow-x:hidden}.modern-table{width:100%;overflow:hidden}.table-container{width:100%;overflow-x:auto}.modern-table th,.modern-table td{overflow:hidden;text-overflow:ellipsis;white-space:normal;padding:1rem;border-bottom:1px solid var(--border-color)}.modern-table th{background:var(--background-secondary);color:var(--text-primary);font-weight:600;font-size:var(--font-xs);text-transform:uppercase;letter-spacing:0.05em}.modern-table td{color:var(--text-secondary);font-weight:500;font-size:var(--font-sm)}.modern-table tbody tr:hover{background-color:var(--background-secondary)}.modern-table tbody tr:last-child td{border-bottom:none}.btn-modern{font-weight:600;padding:0.75rem 1.5rem;border-radius:var(--border-radius);box-shadow:var(--shadow-sm);border:none;font-size:var(--font-sm)}.btn-primary.btn-modern{background:var(--primary-color);color:var(--text-inverse)}.btn-primary.btn-modern:hover{background:var(--primary-hover)}.btn-success.btn-modern{background:var(--success-color);color:var(--text-inverse)}.btn-success.btn-modern:hover{background:var(--success-hover)}.btn-danger.btn-modern{background:var(--error-color);color:var(--text-inverse)}.btn-danger.btn-modern:hover{background:var(--error-hover)}.btn-secondary.btn-modern{background:var(--background-primary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary.btn-modern:hover{background:var(--background-secondary);border-color:var(--primary-color);color:var(--primary-color)}.modern-form{padding:2rem}.form-label.modern-label{font-weight:600;color:var(--text-primary);margin-bottom:0.5rem;font-size:var(--font-sm)}.form-control.modern-input,.form-select.modern-select{border:1px solid var(--border-color);border-radius:var(--border-radius);padding:0.75rem;font-size:var(--font-sm);font-weight:500;background-color:var(--background-primary)}.form-control.modern-input:focus,.modern-select:focus,.form-control[type="file"]:focus{border-color:var(--primary-color);box-shadow:var(--focus-ring);outline:none}.form-control[type="file"]{border:2px dashed var(--border-color);background:var(--background-secondary);padding:1.5rem}.form-control[type="file"]:hover,.form-control[type="file"]:focus{border-color:var(--primary-color);background:var(--background-tertiary)}.modal-content.modern-modal{border:none;border-radius:var(--border-radius);box-shadow:var(--shadow-md)}.modal-header.modern-modal-header,.modal-header.bg-primary{border-bottom:1px solid var(--border-color);border-radius:var(--border-radius) var(--border-radius) 0 0}.modal-header.modern-modal-header{background:var(--background-secondary)}.modal-header.bg-primary{background:var(--primary-color)!important}.modal-title.modern-modal-title,.modal-header.bg-primary .modal-title{font-weight:600;color:var(--text-primary)}.modal-title.modern-modal-title{font-size:var(--font-xl)}.modal-header.bg-primary .modal-title{font-size:var(--font-lg);color:var(--text-inverse)}.modern-pagination{display:flex;justify-content:center;gap:0.25rem;margin-top:2rem}.modern-pagination a,.modern-pagination span{display:inline-flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border:1px solid var(--border-color);border-radius:var(--border-radius);color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:var(--font-sm);background:var(--background-primary)}.modern-pagination a:hover,.modern-pagination .current{background:var(--primary-color);border-color:var(--primary-color);color:var(--text-inverse)}.status-badge,.badge{display:inline-flex;align-items:center;font-weight:500;border-radius:9999px}.status-badge{padding:0.25rem 0.75rem;font-size:var(--font-xs);font-weight:600;text-transform:uppercase;letter-spacing:0.05em}.badge{font-size:0.75rem}.status-badge.status-success{background-color:#dcfce7;color:#166534}.status-badge.status-warning{background-color:#fef3c7;color:#92400e}.status-badge.status-danger{background-color:#fee2e2;color:#991b1b}.status-badge.status-info{background-color:#eff6ff;color:var(--primary-color)}.alert.modern-alert{padding:1rem;background-color:var(--background-secondary);color:var(--text-primary);font-size:var(--font-sm);font-weight:500}.loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(255,255,255,0.9);display:flex;align-items:center;justify-content:center;z-index:9999}.spinner{width:2rem;height:2rem;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}.skeleton{background:var(--background-secondary);animation:loading 1.5s infinite}.fade-in{animation:fadeIn 0.3s ease-in}.slide-in{animation:slideIn 0.3s ease-out}@keyframes spin{to{transform:rotate(360deg)}}@keyframes loading{0%,100%{opacity:1}50%{opacity:0.5}}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{from{transform:translateX(-100%)}to{transform:translateX(0)}}.input-group .input-group-text{background:var(--background-tertiary);border-color:var(--border-color);color:var(--text-secondary);font-weight:500;font-size:var(--font-sm)}.transcript-segment{padding:1rem 0;border-bottom:1px solid var(--border-color);margin-bottom:0}.transcript-segment:last-child{border-bottom:none}.transcript-segment .badge{font-size:var(--font-xs);font-weight:500;padding:0.25rem 0.5rem}.transcript-segment .transcript-text{background:var(--background-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:0.75rem;font-size:var(--font-sm);line-height:1.5;margin-top:0.5rem;color:var(--text-primary)}.transcript-content{max-height:400px;overflow-y:auto}@media (max-width:768px){.sidebar-nav{width:100%!important;height:auto!important}.main-content{padding:1rem!important}.page-header{padding:0.75rem 1rem}.page-title{font-size:var(--font-xl)}.modern-table{font-size:var(--font-xs)}.modern-table th,.modern-table td{padding:0.75rem 0.5rem}h1{font-size:var(--font-3xl)}h2{font-size:var(--font-2xl)}h3{font-size:var(--font-xl)}.sidebar-brand{padding:1rem}.brand-logo{width:36px;height:36px}.brand-text{font-size:1.125rem}.brand-subtitle{font-size:0.7rem}}@media (max-width:576px){.page-header{padding:0.75rem}.page-title{font-size:var(--font-lg)}.btn-modern{padding:0.6rem 1rem;font-size:var(--font-xs)}.modern-form{padding:1.5rem}.modal-dialog{margin:0.5rem}.status-badge{font-size:0.65rem;padding:0.2rem 0.6rem}h1{font-size:var(--font-2xl)}h2{font-size:var(--font-xl)}h3{font-size:var(--font-lg)}.brand-logo{width:32px;height:32px}.brand-text{font-size:1rem}.brand-subtitle{display:none}}.progress-thin{height:6px}.progress-full{width:100%}.large-icon{font-size:3rem}.user-avatar{width:100px;height:100px;border-radius:50%;object-fit:cover}.broadcast-icon{font-size:2rem;color:var(--primary-color)}.empty-state-icon{font-size:3rem;color:var(--text-secondary)}.error-icon{font-size:4rem;color:var(--error-color)}.shield-icon{font-size:4rem;color:var(--warning-color)}.btn:focus-visible,.form-control:focus-visible,.form-select:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}@media print{.sidebar-nav,.btn,.page-header,.modern-pagination{display:none!important}.main-content{margin:0!important;padding:0!important}.content-card{box-shadow:none!important;border:1px solid #ccc!important}}