:root{--bg-color: #0f172a;--panel-bg: #1e293b;--text-main: #f8fafc;--text-muted: #94a3b8;--border-color: #334155;--primary: #3b82f6;--primary-hover: #2563eb;--radius: 8px;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}.app-container{display:flex;min-height:100vh}.main-content{flex:1;padding:2rem;max-width:1400px;margin:0 auto}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background-color:var(--bg-color)}.login-card{background:var(--panel-bg);padding:2.5rem;border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:400px;border:1px solid var(--border-color)}.input-group{margin-bottom:1.5rem}.input-group label{display:block;margin-bottom:.5rem;color:var(--text-muted);font-size:.875rem}.input-group input{width:100%;padding:.75rem;border-radius:4px;background:var(--bg-color);border:1px solid var(--border-color);color:#fff;outline:none}.input-group input:focus{border-color:var(--primary)}.btn{width:100%;padding:.75rem;background-color:var(--primary);color:#fff;border:none;border-radius:4px;font-weight:600;cursor:pointer;transition:background-color .2s}.btn:hover{background-color:var(--primary-hover)}.dashboard-header{margin-bottom:2rem;display:flex;justify-content:space-between;align-items:center}.dashboard-header h1{font-size:1.875rem;font-weight:700}.grid-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem}.card{background:var(--panel-bg);border:1px solid var(--border-color);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow)}.card h3{color:var(--text-muted);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1rem}.metric-value{font-size:2rem;font-weight:700;color:#fff}.charts-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}@media(min-width:1024px){.charts-grid{grid-template-columns:2fr 1fr}}.chart-container{background:var(--panel-bg);border:1px solid var(--border-color);border-radius:var(--radius);padding:1.5rem;min-height:400px}