:root{--bg-body:#0f172a;--bg-sidebar:#1e293b;--bg-card:#1e293b;--bg-input:#334155;--text-main:#f8fafc;--text-muted:#94a3b8;--primary:#3b82f6;--primary-hover:#2563eb;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--border:#334155;--radius:.5rem;--sidebar-width:260px;--header-height:64px}*,*:before,*:after{box-sizing:border-box}body{font-family:'Inter',-apple-system,sans-serif;background-color:var(--bg-body);color:var(--text-main);margin:0;display:flex;min-height:100vh}.app-sidebar{width:var(--sidebar-width);background-color:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;height:100%;left:0;top:0}.sidebar-header{height:var(--header-height);display:flex;align-items:center;padding:0 1.5rem;border-bottom:1px solid var(--border)}.app-logo{font-size:1.25rem;font-weight:700;color:var(--text-main);text-decoration:none;display:flex;align-items:center;gap:.5rem}.sidebar-nav{padding:1.5rem 0;flex:1}.nav-section{margin-bottom:2rem}.nav-title{padding:0 1.5rem;color:var(--text-muted);font-size:.75rem;text-transform:uppercase;font-weight:600;margin-bottom:.5rem}.nav-item a{display:flex;align-items:center;gap:.75rem;padding:.75rem 1.5rem;color:var(--text-muted);text-decoration:none;font-size:.9rem;transition:.2s;border-left:3px solid transparent}.nav-item a:hover,.nav-item a.active{background-color:rgba(59,130,246,.1);color:var(--primary);border-left-color:var(--primary)}.app-main{flex:1;margin-left:var(--sidebar-width);display:flex;flex-direction:column}.app-header{height:var(--header-height);padding:0 2rem;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background-color:var(--bg-body);position:sticky;top:0;z-index:10}.header-title{font-size:1.25rem;font-weight:600}.user-menu{display:flex;align-items:center;gap:1rem}.user-avatar{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600}.app-content{padding:2rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background-color:var(--bg-card);padding:1.5rem;border-radius:var(--radius);border:1px solid var(--border)}.stat-label{color:var(--text-muted);font-size:.875rem;margin-bottom:.5rem}.stat-value{font-size:1.875rem;font-weight:700;color:var(--text-main)}.stat-trend{font-size:.875rem;display:flex;align-items:center;gap:.25rem;margin-top:.5rem}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.data-table-container{background-color:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}.table-header{padding:1.5rem;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.table-title{font-size:1.1rem;font-weight:600;margin:0}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:1rem 1.5rem;text-align:left;border-bottom:1px solid var(--border)}.data-table th{color:var(--text-muted);font-weight:500;font-size:.875rem;background-color:rgba(255,255,255,.02)}.data-table tr:hover{background-color:rgba(255,255,255,.02)}.data-table td{font-size:.9rem}.form-group{margin-bottom:1.25rem}.form-label{display:block;margin-bottom:.5rem;font-size:.875rem;color:var(--text-muted)}.form-control{width:100%;padding:.625rem;background-color:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-main);font-family:inherit}.form-control:focus{outline:none;border-color:var(--primary)}.btn{padding:.625rem 1.25rem;background-color:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-weight:500;cursor:pointer;display:inline-flex;align-items:center;gap:.5rem}.btn:hover{background-color:var(--primary-hover)}.badge{padding:.25rem .625rem;border-radius:20px;font-size:.75rem;font-weight:500}.badge-success{background-color:rgba(16,185,129,.2);color:var(--success)}.badge-warning{background-color:rgba(245,158,11,.2);color:var(--warning)}.badge-danger{background-color:rgba(239,68,68,.2);color:var(--danger)}body.login-page{display:flex;align-items:center;justify-content:center;background-color:var(--bg-body)}.login-card{width:100%;max-width:400px;background-color:var(--bg-card);padding:2.5rem;border-radius:var(--radius);border:1px solid var(--border)}.login-logo{text-align:center;margin-bottom:2rem;font-size:1.5rem;font-weight:700}