:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#1a1a24;--bg-hover:#22222e;--text-primary:#f5f5f7;--text-secondary:#9898a6;--text-muted:#6b6b78;--accent-primary:#6366f1;--accent-secondary:#818cf8;--accent-glow:#6366f126;--success:#22c55e;--warning:#f59e0b;--error:#ef4444;--border:#2a2a3a;--border-light:#3a3a4a;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 12px 40px #00000080;--shadow-glow:0 0 30px var(--accent-glow);--sidebar-width:260px;--transition-fast:.15s ease;--transition-normal:.25s ease}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-primary);height:100%;color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app-container{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;height:100vh;padding:24px 16px;display:flex;position:fixed;top:0;left:0}.sidebar-logo{color:var(--text-primary);align-items:center;gap:10px;margin-bottom:32px;padding:0 12px;font-size:1.25rem;font-weight:700;display:flex}.sidebar-logo:before{content:"";background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:8px;width:28px;height:28px}.nav-section{margin-bottom:24px}.nav-section-title{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:8px;padding:0 12px;font-size:.7rem;font-weight:600}.nav-link{color:var(--text-secondary);transition:all var(--transition-fast);border-radius:8px;align-items:center;gap:12px;padding:10px 12px;font-size:.9rem;font-weight:500;text-decoration:none;display:flex}.nav-link:hover{background:var(--bg-hover);color:var(--text-primary)}.nav-link.active{background:var(--accent-glow);color:var(--accent-secondary)}.main-content{margin-left:var(--sidebar-width);flex:1;min-height:100vh;padding:32px 40px}.page-header{margin-bottom:32px}.page-title{color:var(--text-primary);margin-bottom:4px;font-size:1.75rem;font-weight:700}.page-subtitle{color:var(--text-secondary);font-size:.95rem}.dashboard-section{animation:.5s ease-out fadeIn}.section-title{color:var(--text-primary);align-items:center;gap:12px;margin-bottom:20px;font-size:1.25rem;font-weight:600;display:flex}.section-title:after{content:"";background:var(--border);flex:1;height:1px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:32px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);transition:all var(--transition-normal);border-radius:16px;padding:24px}.stat-card:hover{border-color:var(--border-light);box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:.8rem;font-weight:500}.stat-value{color:var(--text-primary);font-size:2.25rem;font-weight:700;line-height:1.1}.stat-change{border-radius:6px;align-items:center;gap:4px;margin-top:8px;padding:4px 8px;font-size:.8rem;font-weight:600;display:inline-flex}.stat-change.positive{color:var(--success);background:#22c55e1a}.stat-change.negative{color:var(--error);background:#ef44441a}.chart-container{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;margin-bottom:24px;padding:24px}.chart-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.chart-title{color:var(--text-primary);font-size:1.1rem;font-weight:600}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--border);padding:14px 16px}.data-table th{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);background:var(--bg-secondary);font-size:.75rem;font-weight:600}.data-table td{color:var(--text-secondary);font-size:.9rem}.data-table tr:hover td{background:var(--bg-hover)}.btn{cursor:pointer;transition:all var(--transition-fast);border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.9rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));color:#fff;box-shadow:var(--shadow-sm),0 0 20px var(--accent-glow)}.btn-primary:hover{box-shadow:var(--shadow-md),var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-hover);border-color:var(--border-light)}.loading-spinner{border:3px solid var(--border);border-top-color:var(--accent-primary);border-radius:50%;width:40px;height:40px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-container{justify-content:center;align-items:center;min-height:200px;display:flex}.login-container{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--bg-card);border:1px solid var(--border);width:100%;max-width:420px;box-shadow:var(--shadow-lg);border-radius:20px;padding:48px}.login-title{color:var(--text-primary);text-align:center;margin-bottom:8px;font-size:1.5rem;font-weight:700}.login-subtitle{color:var(--text-secondary);text-align:center;margin-bottom:32px;font-size:.95rem}.form-group{margin-bottom:20px}.form-label{color:var(--text-secondary);margin-bottom:8px;font-size:.85rem;font-weight:500;display:block}.form-input{background:var(--bg-secondary);border:1px solid var(--border);width:100%;color:var(--text-primary);transition:all var(--transition-fast);border-radius:10px;padding:12px 16px;font-size:.95rem}.form-input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-glow);outline:none}.form-input::placeholder{color:var(--text-muted)}.error-message{color:var(--error);background:#ef44441a;border:1px solid #ef44444d;border-radius:10px;margin-bottom:20px;padding:12px 16px;font-size:.9rem}.bar-chart{align-items:flex-end;gap:8px;height:200px;padding:20px 0;display:flex}.bar-chart-item{flex-direction:column;flex:1;align-items:center;gap:8px;display:flex}.bar{background:linear-gradient(180deg,var(--accent-secondary),var(--accent-primary));width:100%;max-width:48px;transition:all var(--transition-normal);border-radius:6px 6px 0 0;min-height:4px}.bar:hover{opacity:.8;transform-origin:bottom;transform:scaleY(1.02)}.bar-label{color:var(--text-muted);text-align:center;font-size:.7rem}.bar-value{color:var(--text-secondary);font-size:.75rem;font-weight:600}