:root{--primary:#4f46e5;--primary-light:#eef2ff;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--text-dark:#111827;--text-gray:#6b7280;--bg-main:#f3f4f6;--bg-card:#fff;--sidebar-w:260px;--radius:12px;--shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06)}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,sans-serif;background-color:var(--bg-main);color:var(--text-dark)}a{text-decoration:none;color:inherit}.layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--bg-card);position:fixed;height:100vh;border-right:1px solid #e5e7eb;padding:24px;display:flex;flex-direction:column}.main{flex:1;margin-left:var(--sidebar-w);padding:32px}.brand{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:40px;gap:10px}.brand,.nav-link{display:flex;align-items:center}.nav-link{gap:12px;padding:14px 16px;border-radius:var(--radius);color:var(--text-gray);font-weight:500;margin-bottom:8px;transition:all .2s}.nav-link.active,.nav-link:hover{background:var(--primary-light);color:var(--primary)}.header-area,.stats-grid{margin-bottom:32px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.stat-card{background:var(--bg-card);padding:24px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #e5e7eb;position:relative;overflow:hidden}.stat-title{font-size:13px;font-weight:600;text-transform:uppercase;color:var(--text-gray);margin-bottom:12px}.stat-value{font-size:28px;font-weight:700;color:var(--text-dark)}.icon-box{position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:8px;justify-content:center;font-size:20px;opacity:.2}.icon-box,.toolbar{display:flex;align-items:center}.toolbar{background:var(--bg-card);padding:20px;border-radius:var(--radius);justify-content:space-between;box-shadow:var(--shadow);margin-bottom:24px}.btn-upload{background:var(--primary);color:#fff;padding:10px 20px;border-radius:8px;font-weight:500;cursor:pointer;border:none;display:flex;align-items:center;gap:8px}.btn-upload:hover{background:#4338ca}.filter-group{display:flex;gap:12px;align-items:center}input[type=date]{padding:8px 12px;border:1px solid #d1d5db;border-radius:8px;font-family:inherit;color:var(--text-dark)}.table-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.custom-table{width:100%;border-collapse:collapse;font-size:14px}.custom-table th{background:#f9fafb;padding:16px 20px;text-align:left;font-weight:600;color:var(--text-gray);border-bottom:1px solid #e5e7eb}.custom-table td{padding:16px 20px;border-bottom:1px solid #f3f4f6;vertical-align:top}.custom-table tr:hover{background:#f9fafb}