:root {
    --primary: #10b981;
    --primary-dark: #02160a;
    --brand-green: #10b981;
    --secondary: #f59e0b;
    --secondary-dark: #d97706;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-light: #e2e8f0;
    --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08);
}

/* Glowing Animations */
@keyframes glow-red {
    0% { box-shadow: 0 0 5px rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 15px rgba(239, 68, 68, 0.7); }
    100% { box-shadow: 0 0 5px rgba(239, 68, 68, 0.4); }
}

@keyframes glow-amber {
    0% { box-shadow: 0 0 5px rgba(245, 158, 11, 0.4); }
    50% { box-shadow: 0 0 15px rgba(245, 158, 11, 0.7); }
    100% { box-shadow: 0 0 5px rgba(245, 158, 11, 0.4); }
}

@keyframes glow-green {
    0% { box-shadow: 0 0 5px rgba(16, 185, 129, 0.4); }
    50% { box-shadow: 0 0 15px rgba(16, 185, 129, 0.7); }
    100% { box-shadow: 0 0 5px rgba(16, 185, 129, 0.4); }
}

.glow-unassigned { animation: glow-red 2s ease-in-out infinite; background: #fee2e2; color: #b91c1c; }
.glow-en-route { animation: glow-amber 2s ease-in-out infinite; background: #fef3c7; color: #92400e; }
.glow-started { animation: glow-amber 2.5s ease-in-out infinite; background: #e0f2fe; color: #075985; }
.glow-completed { background: #d1fae5; color: #065f46; border: 1px solid rgba(16, 185, 129, 0.2); }

/* Charts Container */
.chart-container {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
    min-height: 300px;
}

.chart-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Metric Cards Refinement */
.stat-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Mobile Responsiveness Refinements */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .analytics-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .admin-header {
        padding: 15px 20px;
    }
    .admin-content {
        padding: 20px;
    }
    .chart-container {
        padding: 15px;
    }
}