:root{--primary:#1e3a5f;--primary-light:#2d5a8e;--accent:#e8913a;--accent-light:#f0a85c;--bg:#f5f7fa;--card-bg:#fff;--text:#1a1a2e;--text-secondary:#6b7280;--border:#e5e7eb;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--radius:12px;--shadow:0 1px 3px #00000014, 0 1px 2px #0000000f;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -2px #0000000a}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}.app{min-height:100vh}.header{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);color:#fff;z-index:100;padding:2rem 2rem 1.5rem;position:sticky;top:0;box-shadow:0 4px 12px #00000026}.header h1{margin-bottom:.25rem;font-size:1.5rem;font-weight:700}.header p{opacity:.85;font-size:.875rem}.nav{flex-wrap:wrap;gap:.5rem;margin-top:1rem;display:flex}.nav button{color:#fff;cursor:pointer;background:#ffffff26;border:1px solid #fff3;border-radius:8px;padding:.5rem 1rem;font-size:.8rem;font-weight:500;transition:all .2s}.nav button:hover{background:#ffffff40}.nav button.active{color:var(--primary);background:#fff;font-weight:600}.container{max-width:1400px;margin:0 auto;padding:1.5rem}.kpi-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:1.5rem;display:grid}.kpi-card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);padding:1.25rem;transition:transform .2s,box-shadow .2s}.kpi-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.kpi-card .label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem;font-size:.75rem;font-weight:600}.kpi-card .value{color:var(--primary);font-size:1.75rem;font-weight:700;line-height:1.2}.kpi-card .sub{color:var(--text-secondary);margin-top:.25rem;font-size:.75rem}.charts-grid{grid-template-columns:repeat(auto-fit,minmax(450px,1fr));gap:1.5rem;margin-bottom:1.5rem;display:grid}.chart-card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);padding:1.5rem}.chart-card h3{color:var(--text);margin-bottom:1rem;font-size:.95rem;font-weight:600}.section-title{color:var(--primary);border-bottom:2px solid var(--accent);margin:2rem 0 1rem;padding-bottom:.5rem;font-size:1.15rem;font-weight:700;display:inline-block}.table-container{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);margin-bottom:1.5rem;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.85rem}thead{background:var(--primary);color:#fff}th{text-align:left;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;padding:.75rem 1rem;font-size:.75rem;font-weight:600}td{border-bottom:1px solid var(--border);padding:.65rem 1rem}tr:hover td{background:#f8f9fb}.badge{border-radius:999px;padding:.2rem .6rem;font-size:.7rem;font-weight:600;display:inline-block}.badge-success{color:#065f46;background:#d1fae5}.badge-warning{color:#92400e;background:#fef3c7}.badge-info{color:#1e40af;background:#dbeafe}.feedback-list{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem;margin-bottom:1.5rem;display:grid}.feedback-item{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);border-left:4px solid var(--accent);padding:1rem}.feedback-item .category{text-transform:uppercase;color:var(--accent);letter-spacing:.05em;margin-bottom:.25rem;font-size:.7rem;font-weight:700}.feedback-item .text{color:var(--text);font-size:.85rem}.stars{color:#f59e0b;font-size:1.1rem}.loading{height:100vh;color:var(--text-secondary);justify-content:center;align-items:center;font-size:1.2rem;display:flex}@media (width<=768px){.charts-grid{grid-template-columns:1fr}.kpi-grid{grid-template-columns:repeat(2,1fr)}.header{padding:1rem}}